CN207731937U - A kind of glass plate and photovoltaic cell component - Google Patents
A kind of glass plate and photovoltaic cell component Download PDFInfo
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- CN207731937U CN207731937U CN201721370428.0U CN201721370428U CN207731937U CN 207731937 U CN207731937 U CN 207731937U CN 201721370428 U CN201721370428 U CN 201721370428U CN 207731937 U CN207731937 U CN 207731937U
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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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Abstract
The utility model discloses a kind of glass plate, including substrate, multiple grooves are distributed in the substrate surface, and the titanium oxide film layer for having one side surface of the groove in the substrate is arranged, and the titanium oxide film layer covers the groove；Since titanium dioxide has photocatalysis and photo-induced super-hydrophilicity, self-cleaning effect may be implemented, so as to remove the dust of glass pane surface automatically；Multiple grooves are distributed in the surface of above-mentioned glass plate simultaneously, and multiple grooves can function similarly to the effect of light trapping, and when light is radiated at the surface of groove, a part of light can pass through multiple reflections and absorption in groove surfaces, to reduce the generation of dazzle situation；A kind of photovoltaic cell component of also offer of the utility model, when application above-mentioned glass plate, the dust on photovoltaic cell component surface can be effectively removed while anti-dazzle, to increase the luminous efficiency of photovoltaic cell component, and the generation for effectively reducing hot spot effect increases the service life of photovoltaic module.
Description
Technical field
The utility model is related to photovoltaic cell fields, more particularly to a kind of glass plate and photovoltaic cell component.
Background technology
It is domestic with the continuous breakthrough of photovoltaic cell technology in recent years, and with the continuous expansion of domestic photovoltaic industry
Application in relation to solar cell is more and more extensive.
Due to the ground such as near airport, railway, it is desirable that object needs anti-dazzle, so usually in the light of place setting
The surface of volt battery also needs anti-dazzle, has just produced anti-dazzle solar components accordingly.So-called anti-dazzle solar energy
Component is that the sensitive sides of solar components is provided with the glass plate of anti-dazzle.
In the prior art, the glass pane surface of anti-dazzle is due to needing effective absorption and scattering incident light, it will usually
The surface of glass plate is provided with the special construction of similar light trapping structure, for absorbing and scattering incident light.But in existing skill
In art, glass plate is due to the special structure in its surface, and surface is easy accumulation dust, so as to cause under the light transmittance of glass plate
Drop.
Utility model content
The purpose of this utility model is to provide a kind of glass plate, can remove the ash on surface automatically while anti-dazzle
Dirt, to prevent glass plate light transmittance from declining；The another object of the utility model is to provide a kind of photovoltaic cell component, positive
There can be self-cleaning function while anti-dazzle.
In order to solve the above technical problems, the utility model provides a kind of glass plate, the glass plate includes substrate, the base
Multiple grooves are distributed in plate surface, and the substrate surface that the groove is arranged is provided with titanium oxide film layer, the titanium dioxide
Titanium film layer covers the groove.
Optionally, the value range of the thickness of the titanium oxide film layer is：40nm to 60nm.
Optionally, multiple grooves are mutually parallel.
Optionally, the groove is uniformly distributed in the substrate surface.
Optionally, the section of the groove radially is semiellipse type.
Optionally, the substrate surface is provided with the drainage trough intersected with the groove.
Optionally, the photovoltaic cell component includes cell piece, and the cell piece sensitive side is provided with any of the above-described described
Glass plate.
Optionally, the cell piece backlight side is provided with backboard.
Optionally, the glass plate connects the cell piece by packaging adhesive film；The backboard is connected by packaging adhesive film
The cell piece.
A kind of glass plate provided by the utility model, is provided with layer of titanium dioxide film layer, dioxy on the surface of the substrate
Change titanium film layer and covers groove.Since titanium dioxide has photocatalysis and photo-induced super-hydrophilicity, self-cleaning effect may be implemented,
So as to remove the dust accumulated in glass pane surface, especially groove automatically.Glass provided by the utility model simultaneously
Multiple grooves are distributed in the surface of plate, and multiple grooves can function similarly to the effect of light trapping, when light is radiated at the table of groove
When face, a part of light can pass through multiple reflections and absorption in groove surfaces, to reduce the generation of dazzle situation.
The another object of the utility model is to provide a kind of photovoltaic cell component, when application above-mentioned glass plate,
The dust that photovoltaic cell component surface can be effectively removed while anti-dazzle, to increase the luminous effect of photovoltaic cell component
Rate, and the generation of hot spot effect is effectively reduced, increase the service life of photovoltaic module.
Description of the drawings
For the clearer technical solution for illustrating the utility model embodiment or the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
A kind of structural schematic diagram for glass plate that Fig. 1 is provided by the utility model embodiment；
A kind of vertical view for glass plate that Fig. 2 is provided by the utility model embodiment；
A kind of structural schematic diagram for photovoltaic cell component that Fig. 3 is provided by the utility model embodiment.
Specific implementation mode
The core of the utility model is to provide a kind of glass plate.In the prior art, the surface of anti-dazzle solar components
Due to needing effective absorption and scattering incident light, it will usually which the glass surface of component sensitive side is provided with similar light trapping structure
Special construction, for absorbing and scattering incident light.So-called light trapping structure, as the term suggests it typically is concave structure, Ke Yirang
Incident light multiple reflections in light trapping structure absorb and scatter incident light with this.But in the prior art, the anti-dazzle sun
For energy component due to the special concave structure in its surface, surface is easy accumulation dust, and the dust of accumulation can be covered positioned at glass plate
The solar battery sheet of lower section, to the luminous efficiency of meeting strong influence solar components, and the hot spot effect meeting caused
The service life of strong influence solar components.
And a kind of glass plate provided by the utility model, it is provided with titanium oxide film layer on the surface of the substrate, titanium dioxide
Titanium film layer covers groove.Since titanium dioxide has photocatalysis and photo-induced super-hydrophilicity, self-cleaning effect may be implemented, from
And glass pane surface can be removed automatically, the dust especially accumulated in groove.Glass plate provided by the utility model simultaneously
Surface multiple grooves are distributed with, multiple grooves can function similarly to the effect of light trapping, when light is radiated at the surface of groove
When, a part of light can pass through multiple reflections and absorption in groove surfaces, to reduce the generation of dazzle situation.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.Obviously, described embodiment is only the utility model part
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
It please refers to Fig.1 and a kind of structural schematic diagram of glass plate that Fig. 2, Fig. 1 are provided by the utility model embodiment, figure
A kind of vertical view of 2 glass plates provided by the utility model embodiment.
Referring to Fig. 1, the glass plate includes substrate 100, and multiple grooves 101, the base is distributed in 100 surface of the substrate
The surface that 101 side of the groove is arranged in plate 100 is provided with titanium oxide film layer 102, and the titanium oxide film layer 102 covers institute
State groove 101.
In the utility model embodiment, the substrate 100 is the substrate 100 of glass material, since the glass plate is usual
Good optical transmittance is needed, so substrate 100 usually selects semi-tempered glass either high transparent glass.Certainly, the base
Plate 100 can also select other glass materials, such as tempered glass etc., and the specific material in relation to substrate 100 is in this practicality
It is not specifically limited in new embodiment.In the utility model embodiment, the thickness of the substrate 100 is not done equally and is had
The restriction of body.
Multiple grooves 101 are provided on the surface of aforesaid substrate 100, the groove 101 can be understood as a kind of sunken light
Structure, the groove 101 can effectively absorb the sunlight with scattered radiation on 100 surface of the substrate.When light is radiated at
When the surface of groove 101, a part of light can pass through multiple reflections and absorption on 101 surface of groove, dizzy in illumination to reduce
The occurrence of light.It should be noted that the groove 101 is usually positioned only in the approximately the same plane of aforesaid substrate 100, and
The titanium oxide film layer 102 is also only used in the surface setting titanium dioxide that 101 side of the groove is arranged in the substrate 100
Titanium film layer 102, to cover the groove 101.
For the convenience of making, above-mentioned groove 101 is generally parallel to each other.And above-mentioned groove 101 is usually in the substrate
100 surface is uniformly distributed, and dazzle situation is prevented to ensure that 100 surface of entire substrate is generally both provided with groove 101
Generation.Certainly, as a preferred solution, the 101 phase mutual connection of the adjacent groove on 100 surface of the substrate is set
It touches, i.e., the distance between adjacent described groove 101 is zero, any one on 100 surface of substrate to ensure to be arranged groove 101
Block region is the surface of groove 101, to more comprehensively prevent the occurrence of dazzle.
Referring to Fig. 2, in the utility model embodiment, the cross section of the groove 101, the i.e. groove 101 are radially
The section in direction can be up-side down triangle, inverted trapezoidal etc..Certainly, when sunlight irradiates in order to reduce dazzle feelings as far as possible
The surface of the generation of condition, the groove 101 is preferably cambered surface, so the section of the groove 101 radially preferably half
Circle, half elliptic, circle are crown or oval crown.Certainly, described in the utility model embodiment for the convenience of making
The section of groove 101 radially is preferably half elliptic.
Further, in the utility model embodiment, above-mentioned groove 101 can be divided into the sub- groove of more piece of connection, and
The shape of any knot groove can be that semielliptical shape or ellipsoid are crown.Shape for sub- groove is semielliptical shape, specifically,
The section of the sub- groove radially is half elliptic, and the section of the sub- groove in axial direction is similarly semiellipse
Shape.The shape of a semielliptical will be constituted at this point for any knot groove.Shape for sub- groove is that ellipsoid is crown, tool
Body, the section of the sub- groove radially is oval crown, and the section of the sub- groove in axial direction is similarly ellipse
Circle is crown.The shape of ellipsoid hat will be constituted at this point for any knot groove.
It is that half elliptic or ellipse are crown compared to the section of above-mentioned entire groove 101 only radially, it is whole at this time
In any one piece of region on 101 surface of a groove, 101 surface of groove is camber line along any direction, can when sunlight irradiates
So that multiple reflections can occur for the incident light along any direction incidence, the glass provided to the utility model embodiment
Glass plate can to greatest extent prevent the occurrence of dazzle.
As a preferred option, the semi-ellipsoidal shape that above-mentioned any one knot groove is constituted, major semiaxis length are usually
1cm, semi-minor axis length are usually 0.5cm.Certainly, in the utility model embodiment, for the cutting radially of groove 101
The shape in face is not specifically limited, and is not specifically limited to the specific size of groove 101 equally.
Referring to Fig. 1, in the utility model embodiment, the surface setting of 101 side of the groove is arranged in the substrate 100
There are titanium oxide film layer 102, the titanium oxide film layer 102 to cover the groove 101.
Above-mentioned titanium oxide film layer 102 under normal conditions necessary not only for the groove 101 is covered, should also with it is described recessed
The surface of slot 101 fits.
Due to being easy accumulation dust and dirt in groove 101, so that the translucency of glass plate declines, so in this reality
With in new embodiment, be provided with the titanium oxide film layer 102 for covering above-mentioned groove 101, using titanium oxide film layer 102 from
Sanitary characteristics remove the dust and dirt of glass pane surface.The automatic cleaning action of titanium oxide film layer 102 is the sheet of titanium dioxide
Levy feature.At this stage, because of the specific surface area bigger of the crystal in nanometer film layer, automatically cleaning effect more preferably, the dioxy
It is usually titanic oxide nano-membrane layer to change titanium film layer 102.
Titanium dioxide has photocatalysis and photo-induced super-hydrophilicity, and self-cleaning effect may be implemented.Specifically, titanium dioxide
Titanium is a kind of N-type semiconductor material, the valence band full of electronics and between the conduction band being made of hole there are a forbidden band, work as photograph
The energy penetrated in the ultraviolet light on 102 surface of titanium oxide film layer is more than energy gap, and the electronics in titanium dioxide valence band is excited,
Conduction band is transitted to, while hole is formed in valence band.Electronics in conduction band is reacted with the oxygen in air generates superoxide anion
O2-；Hole and the water of surface attachment in valence band can form hydroxyl radical free radical OH.Hydroxyl radical free radical has strong oxidizing property,
Can be water and carbon dioxide by the various organic matter degradations for adsorbing 102 surface of titanium oxide film layer.
The photic hydrophily of titanium oxide film layer 102 is the electron-hole pair and two that ultraviolet excitation generates concretely
The surface crystal of titanium oxide layer 102 interacts, 102 surface of titanium oxide film layer formed equally distributed hydrophilic microcell and
The width of hydrophobic microcell, each microcell only has more than ten nanometer, and a water droplet is big more than hydrophilic microcell, therefore water droplet can be
It constantly sprawls on 102 surface of titanium oxide film layer.
Caused by the pollution of glass pane surface has mainly adsorbed the dust and organic matter to suspend in air under normal conditions,
This absorption is in the early stage mainly due to physical absorption caused by Electrostatic Absorption caused by electrostatic force and Van der Waals force.Above-mentioned dioxy
Change titanium film layer 102 after by ultraviolet light, shows super hydrophilicity, chemistry is formed on 102 surface of titanium oxide film layer
Water and physical absorption water are adsorbed, the presence for adsorbing water has conducive to the electrostatic of coating surface is eliminated, and eliminates Electrostatic Absorption.Above-mentioned dioxy
It is hydrophilic to change the hydroxyl radical free radical that 102 surface of titanium film layer is formed, when water is dropped in 102 surface of titanium oxide film layer, surface
Form hydrogen bond between hydroxyl radical free radical and water, the active force of hydrogen bond is significantly larger than Van der Waals force, therefore water substitution dust adsorption in
102 surface of titanium oxide film layer, the dust adsorbed originally on the surface are taken away by remaining water, and are difficult by water on the surface
The organic adsorbents taken away are decomposed under the photocatalysis of titanium dioxide, form water, carbon dioxide and can be taken away by the water
Small-molecule substance, to reach self-cleaning purpose.
In the utility model embodiment, the value range of the thickness of the titanium oxide film layer 102 is usually 40nm
To 60nm.When in titanium oxide film layer 102 out above-mentioned thickness range, it is ensured that titanium oxide film layer 102 is having well
Translucency while, have preferable automatically cleaning characteristic.Certainly, the thickness of the titanium oxide film layer 102 can also be it
His value, the thickness in relation to titanium oxide film layer 102 are not specifically limited in the utility model embodiment.
There are many kinds of the preparation methods of above-mentioned titanium oxide film layer 102, such as sol-gel method, vapour deposition process, solvent
Hot method etc. can prepare above-mentioned titanium oxide film layer 102 using method appropriate under reasonable conditions.Related titanium dioxide
The preparation method of film layer 102 is equally not specifically limited in the utility model embodiment.
It, further can be in the side of the glass plate or in the base in the utility model embodiment referring to Fig. 2
The surface that 101 side of the groove is arranged in plate 100 is provided with drainage trough 103.The drainage trough 103 needs and above-mentioned groove 101
Intersection.Because in the utility model embodiment, the self-cleaning function of titanium oxide film layer 102 can be formed on the surface of glass plate
Water drops flows down.And the glass plate that the utility model embodiment is provided can be arranged on some electronic device surfaces, if allow water droplet with
Meaning slides, which is likely to enter inside of electronic component, it is possible to cause electronic device that short circuit occurs.In order not to allow water droplet with
Meaning drippage can be provided with the drainage intersected with above-mentioned groove in the side of the glass plate or on the surface that above-mentioned groove is arranged
Slot 103, to allow the water droplet formed on 102 surface of above-mentioned titanium oxide film layer to be slid along the drainage trough 103.
In the utility model embodiment, a usually only drainage trough 103, the drainage trough 103 with it is above-mentioned each recessed
Slot 101 intersects or vertical.Certainly, since the provided glass plate of the utility model embodiment is typically inclination installation, so
It can downwards be slid along the groove in the water droplet that 102 surface of titanium oxide film layer is formed, so the drainage trough 103 is usually arranged
In the lower part of glass plate.The cross section of the drainage trough 103 is usually semicircle or half elliptic.Certainly, the drainage trough 103
Cross section can also be other shapes, the shape and structure in the utility model embodiment for drainage trough 103 are not
Do specific restriction.Simultaneously in the utility model embodiment, the quantity of drainage trough 103 is equally not specifically limited.
A kind of glass plate provided by the utility model is provided with layer of titanium dioxide film layer on the surface of substrate 100
102.Since titanium dioxide has photocatalysis and photo-induced super-hydrophilicity, self-cleaning effect may be implemented, so as to automatic
Remove the dust of glass pane surface.Multiple grooves are distributed in the surface of glass plate provided by the utility model simultaneously, multiple recessed
Slot can function similarly to the effect of light trapping, and when light is radiated at the surface of groove, a part of light can pass through in groove surfaces
Multiple reflections and absorption, to reduce the generation of dazzle situation.
In the present invention, the glass plate is usually applied to photovoltaic cell component.Related above-mentioned glass plate is in photovoltaic
Concrete application in component, details please refer to following utility model embodiments.
Please refer to Fig. 3, a kind of structural schematic diagram for photovoltaic cell component that Fig. 3 is provided by the utility model embodiment.
Referring to Fig. 3, due under normal conditions, photovoltaic cell component have towards the sun and away from the sun while,
Wherein the one side towards the sun is commonly referred to as sensitive side, and the one side away from the sun is commonly referred to as backlight side.In the utility model reality
It applies in example, the sensitive side of cell piece 400 is provided with the glass plate described in above-mentioned utility model embodiment.Wherein, above-mentioned
In the substrate 100 of glass plate, it is not provided with 100 surface of substrate of above-mentioned groove and above-mentioned titanium oxide film layer 102 usually and institute
The sensitive side for stating cell piece 400 is connected with each other.The photovoltaic cell component that i.e. the utility model embodiment is provided, sensitive side institute
The light of receiving can penetrate above-mentioned titanium oxide film layer 102, across aforesaid substrate 100, finally be irradiated to the cell piece
400。
The backlight side of above-mentioned cell piece 400 is usually provided with backboard 200, to play the protection to entire photovoltaic cell component
With the effect of support.Under normal conditions, the backboard 200 usually requires have reliable insulating properties, water preventing ability and resistance to ag(e)ing
Etc..The backboard 200 can be glass either other composite materials etc., in the utility model embodiment, as long as the back of the body
Plate 200 can play the role of protection and support entire photovoltaic cell component, be not specifically limited to material used.The back of the body
Plate 200 can only only have one layer, it is possible to have multilayered structure does not do specific limit equally in the utility model embodiment
It is fixed.
It is typically to pass through encapsulation in the utility model embodiment, between above-mentioned glass plate and the sensitive side of cell piece 400
Glued membrane 300 is attached.And usually again by packaging adhesive film 300 between above-mentioned backboard 200 and the backlight side of cell piece 400
It is attached.Above-mentioned packaging adhesive film 300 is typically EVA (ethylene-vinyl acetate copolymer, ethyl vinyl acetate
Vinyl ester copolymers), it, can be in light since EVA has superior performance in adhesion strength, durability, optical transparence etc.
Play the role of adherency and protection to glass plate 100, backboard 200 and cell piece 400 in photovoltaic cell components.So in existing rank
Section, usually all can select EVA as packaging adhesive film 300.Certainly, it is not limited to that EVA is used only in the utility model embodiment
It is new in this practicality as long as can connect above-mentioned cell piece 400 with glass plate 100 and backboard 200 as packaging adhesive film 300
It is not specifically limited in type embodiment.Certainly, the packaging adhesive film 300 is preferably while with good optical transmission, stabilization
Property and insulating properties etc..
In the utility model embodiment, cell piece 400 is used to the luminous energy received being converted into electric energy, the cell piece
400 can only be merely a piece of single battery piece, but have multiple cell pieces under normal conditions by being serially connected either
Mode in parallel carries out typesetting.It can be to be connected with each other by welding between multiple cell pieces, can also be by imbrication technology
Be connected with each other etc., it is not specifically limited in the utility model embodiment in relation to the connection method between multiple cell pieces.I.e.
In the utility model embodiment, the quantity of the cell piece 400 between upper layer glass 100 and lower layer's glass 200 can be
One can also be multiple, and the quantity about cell piece 400 is not specifically limited.
Referring to Fig. 1, in the utility model embodiment, the glass plate includes substrate 100,100 surface of the substrate point
Multiple grooves 101 are furnished with, the surface that 101 side of the groove is arranged in the substrate 100 is provided with titanium oxide film layer 102, institute
It states titanium oxide film layer 102 and covers the groove 101.
In the utility model embodiment, the substrate 100 is the substrate 100 of glass material, since the glass plate is usual
Good optical transmittance is needed, is irradiated on above-mentioned cell piece 400 with ensureing that light is as much as possible, so substrate 100 is logical
Often select semi-tempered glass either high transparent glass.Certainly, the substrate 100 can also select other glass materials, such as
Tempered glass etc., the specific material in relation to substrate 100 are not specifically limited in the utility model embodiment.It is new in this practicality
In type embodiment, specific restriction is not done for the thickness of the substrate 100 equally.
Multiple grooves 101 are provided on the surface of aforesaid substrate 100, the groove 101 can be understood as a kind of sunken light
Structure, the groove 101 can effectively absorb the sunlight with scattered radiation on 100 surface of the substrate.When light is radiated at
When the surface of groove 101, a part of light can pass through multiple reflections and absorption on 101 surface of groove, dizzy in illumination to reduce
The occurrence of light.While it being irradiated to above-mentioned cell piece 400 after multiple reflections, having more light, corresponding meeting
Improve the luminous efficiency of entire photovoltaic cell component.It should be noted that the groove 101 is usually positioned only at aforesaid substrate
In 100 approximately the same plane, and the titanium oxide film layer 102 is also only used in the substrate 100 and 101 side of the groove is arranged
Surface the titanium oxide film layer 102 is set, to cover the groove 101.
For the convenience of making, above-mentioned groove 101 is generally parallel to each other.And above-mentioned groove 101 is usually in the substrate
100 surface is uniformly distributed, and dazzle situation is prevented to ensure that 100 surface of entire substrate is generally both provided with groove 101
Generation.Certainly, as a preferred solution, the 101 phase mutual connection of the adjacent groove on 100 surface of the substrate is set
It touches, i.e., the distance between adjacent described groove 101 is zero, any one on 100 surface of substrate to ensure to be arranged groove 101
Block region is the surface of groove 101, to more comprehensively prevent the occurrence of dazzle.
Referring to Fig. 2, in the utility model embodiment, the cross section of the groove 101, the i.e. groove 101 are radially
The section in direction can be up-side down triangle, inverted trapezoidal etc..Certainly, when sunlight irradiates in order to reduce dazzle feelings as far as possible
The surface of the generation of condition, the groove 101 is preferably cambered surface, so the section of the groove 101 radially preferably half
Circle, half elliptic, circle are crown or oval crown.Certainly, described in the utility model embodiment for the convenience of making
The section of groove 101 radially is preferably half elliptic.
Further, in the utility model embodiment, above-mentioned groove 101 can be divided into the sub- groove of more piece of connection, and
The shape of any sub- groove can be that semielliptical shape or ellipsoid are crown.Shape for sub- groove is semielliptical shape, specifically, institute
It is half elliptic to state the section of sub- groove radially, and the section of the sub- groove in axial direction is similarly half elliptic.
The shape of a semielliptical will be constituted at this point for any sub- groove.It is crown for ellipsoid for the shape of sub- groove, specifically,
The section of the sub- groove radially is oval crown, and the section of the sub- groove in axial direction is similarly oval hat
Shape.The shape of ellipsoid hat will be constituted at this point for any sub- groove.
It is that half elliptic or ellipse are crown compared to the section of above-mentioned entire groove 101 only radially, it is whole at this time
In any one piece of region on 101 surface of a groove, 101 surface of groove is camber line along any direction, can when sunlight irradiates
So that multiple reflections can occur for the incident light along any direction incidence, the glass provided to the utility model embodiment
Glass plate can to greatest extent prevent the occurrence of dazzle.
As a preferred option, the semi-ellipsoidal shape that any of the above-described sub- groove is constituted, major semiaxis length are usually 1cm,
Its semi-minor axis length is usually 0.5cm.Certainly, in the utility model embodiment, for the section of groove 101 radially
Shape is not specifically limited, and is not specifically limited to the specific size of groove 101 equally.
Referring to Fig. 1, in the utility model embodiment, the surface setting of 101 side of the groove is arranged in the substrate 100
There are titanium oxide film layer 102, the titanium oxide film layer 102 to cover the groove 101.
Above-mentioned titanium oxide film layer 102 under normal conditions necessary not only for the groove 101 is covered, should also with it is described recessed
The surface of slot 101 fits.
Due to being easy accumulation dust and dirt in groove 101, the luminous efficiency of photovoltaic cell component, while band are seriously affected
The hot spot effect come can seriously affect the service life of photovoltaic cell component.So in the utility model embodiment, setting
The titanium oxide film layer 102 of the above-mentioned groove of covering 101, utilizes the automatically cleaning characteristic of titanium oxide film layer 102 to remove glass plate
The dust and dirt on surface.The automatic cleaning action of titanium oxide film layer 102 is the intrinsic characteristics of titanium dioxide.At this stage, because
For the specific surface area bigger of the crystal in nanometer film layer, more preferably, the titanium oxide film layer 102 is usually two to automatically cleaning effect
TiOx nano film layer.
Titanium dioxide has photocatalysis and photo-induced super-hydrophilicity, and self-cleaning effect may be implemented.Specifically, titanium dioxide
Titanium is a kind of N-type semiconductor material, the valence band full of electronics and between the conduction band being made of hole there are a forbidden band, work as photograph
The energy penetrated in the ultraviolet light on 102 surface of titanium oxide film layer is more than energy gap, and the electronics in titanium dioxide valence band is excited,
Conduction band is transitted to, while hole is formed in valence band.Electronics in conduction band is reacted with the oxygen in air generates superoxide anion O2 -；
Hole and the water of surface attachment in valence band can form hydroxyl radical free radical OH.Hydroxyl radical free radical has strong oxidizing property, can incite somebody to action
The various organic matter degradations for being adsorbed on 102 surface of titanium oxide film layer are water and carbon dioxide.
The photic hydrophily of titanium oxide film layer 102 is the electron-hole pair and two that ultraviolet excitation generates concretely
The surface crystal of titanium oxide layer 102 interacts, 102 surface of titanium oxide film layer formed equally distributed hydrophilic microcell and
The width of hydrophobic microcell, each microcell only has more than ten nanometer, and a water droplet is big more than hydrophilic microcell, therefore water droplet can be
It constantly sprawls on 102 surface of titanium oxide film layer.
Caused by the pollution of glass pane surface has mainly adsorbed the dust and organic matter to suspend in air under normal conditions,
This absorption is in the early stage mainly due to physical absorption caused by Electrostatic Absorption caused by electrostatic force and Van der Waals force.Above-mentioned dioxy
Change titanium film layer 102 after by ultraviolet light, shows super hydrophilicity, chemistry is formed on 102 surface of titanium oxide film layer
Water and physical absorption water are adsorbed, the presence for adsorbing water has conducive to the electrostatic of coating surface is eliminated, and eliminates Electrostatic Absorption.Above-mentioned dioxy
It is hydrophilic to change the hydroxyl radical free radical that 102 surface of titanium film layer is formed, when water is dropped in 102 surface of titanium oxide film layer, surface
Form hydrogen bond between hydroxyl radical free radical and water, the active force of hydrogen bond is significantly larger than Van der Waals force, therefore water substitution dust adsorption in
102 surface of titanium oxide film layer, the dust adsorbed originally on the surface are taken away by remaining water, and are difficult by water on the surface
The organic adsorbents taken away are decomposed under the photocatalysis of titanium dioxide, form water, carbon dioxide and can be taken away by the water
Small-molecule substance, to reach self-cleaning purpose.
In the utility model embodiment, the value range of the thickness of the titanium oxide film layer 102 is usually 40nm
To 60nm.When in titanium oxide film layer 102 out above-mentioned thickness range, it is ensured that titanium oxide film layer 102 is having well
Translucency while, have preferable automatically cleaning characteristic.Certainly, the thickness of the titanium oxide film layer 102 can also be it
His value, the thickness in relation to titanium oxide film layer 102 are not specifically limited in the utility model embodiment.
There are many kinds of the preparation methods of above-mentioned titanium oxide film layer 102, such as sol-gel method, vapour deposition process, solvent
Hot method etc. can prepare above-mentioned titanium oxide film layer 102 using method appropriate under reasonable conditions.Related titanium dioxide
The preparation method of film layer 102 is equally not specifically limited in the utility model embodiment.
It, further can be in the side of the glass plate or in the base in the utility model embodiment referring to Fig. 2
The surface that 101 side of the groove is arranged in plate 100 is provided with drainage trough 103.The drainage trough 103 needs and above-mentioned groove 101
Intersection.Because in the utility model embodiment, the self-cleaning function of titanium oxide film layer 102 can be formed on the surface of glass plate
Water drops flows down.If water droplet is allowed arbitrarily to slide, which is likely to enter inside photovoltaic cell component, it is possible to lead to photovoltaic cell
Short circuit occurs for component.In order not to allow water droplet arbitrarily to drip, can in the side of the glass plate or above-mentioned groove 101 be set
Surface is provided with the drainage trough 103 intersected with above-mentioned groove 101, is formed on 102 surface of above-mentioned titanium oxide film layer to allow
Water droplet slides along the drainage trough 103.
In the utility model embodiment, a usually only drainage trough 103, the drainage trough 103 with it is above-mentioned each recessed
Slot 101 intersects or vertical.Certainly, since the provided glass plate of the utility model embodiment is typically inclination installation, so
It can downwards be slid along the groove 101 in the water droplet that 102 surface of titanium oxide film layer is formed, so the drainage trough 103 is usual
It is arranged in the lower part of glass plate.The cross section of the drainage trough 103 is usually semicircle or half elliptic.Certainly, the drainage
The cross section of slot 103 can also be other shapes, for the shape and knot of drainage trough 103 in the utility model embodiment
Structure does not do specific restriction.Simultaneously in the utility model embodiment, specific limit is not done for the quantity of drainage trough 103 equally
It is fixed.
A kind of photovoltaic cell component provided by the utility model applies above-mentioned glass plate in the sensitive side of cell piece 400,
The dust and dirt that photovoltaic cell component surface can be effectively removed while anti-dazzle, to increase photovoltaic cell component
Luminous efficiency, and the generation of hot spot effect is effectively reduced, increase the service life of photovoltaic module.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with it is other
The difference of embodiment, just to refer each other for same or similar part between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part
Explanation.
A kind of glass plate provided by the utility model and photovoltaic cell component are described in detail above.Herein
Specific case is applied to be expounded the principles of the present invention and embodiment, the explanation of above example is only intended to
Help understands the method and its core concept of the utility model.It should be pointed out that coming for those skilled in the art
It says, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these change
It is also fallen into the protection domain of the utility model claims into modification.
Claims (8)
1. a kind of glass plate, which is characterized in that the glass plate includes substrate, and multiple grooves are distributed in the substrate surface, if
The titanium oxide film layer that there is one side surface of the groove in the substrate is set, the titanium oxide film layer covers the groove；
Wherein, the groove is divided into the sub- groove of more piece of connection, and the shape of the sub- groove is that semielliptical shape and/or ellipsoid are crown.
2. glass plate according to claim 1, which is characterized in that the value range of the thickness of the titanium oxide film layer
For：40nm to 60nm.
3. glass plate according to claim 1, which is characterized in that multiple grooves are mutually parallel.
4. glass plate according to claim 3, which is characterized in that the groove is uniformly distributed in the substrate surface.
5. according to the glass plate described in any one of Claims 1-4 claim, which is characterized in that the substrate surface setting
There is the drainage trough intersected with the groove.
6. a kind of photovoltaic cell component, which is characterized in that the photovoltaic cell component includes cell piece, the cell piece sensitive side
It is arranged just like the glass plate described in any one of claim 1 to 5 claim.
7. component according to claim 6, which is characterized in that the cell piece backlight side is provided with backboard.
8. component according to claim 7, which is characterized in that the glass plate connects the battery by packaging adhesive film
Piece；The backboard connects the cell piece by packaging adhesive film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721370428.0U CN207731937U (en) | 2017-10-23 | 2017-10-23 | A kind of glass plate and photovoltaic cell component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370428.0U CN207731937U (en) | 2017-10-23 | 2017-10-23 | A kind of glass plate and photovoltaic cell component |
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| CN207731937U true CN207731937U (en) | 2018-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509800A (en) * | 2018-12-26 | 2019-03-22 | 浙江晶科能源有限公司 | A kind of imbrication photovoltaic module and photovoltaic generating system |
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2017
- 2017-10-23 CN CN201721370428.0U patent/CN207731937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509800A (en) * | 2018-12-26 | 2019-03-22 | 浙江晶科能源有限公司 | A kind of imbrication photovoltaic module and photovoltaic generating system |
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