CN103247705A - Solar panel - Google Patents
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- CN103247705A CN103247705A CN2012100332239A CN201210033223A CN103247705A CN 103247705 A CN103247705 A CN 103247705A CN 2012100332239 A CN2012100332239 A CN 2012100332239A CN 201210033223 A CN201210033223 A CN 201210033223A CN 103247705 A CN103247705 A CN 103247705A
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Abstract
The invention discloses a solar panel. The solar panel comprises a junction box and more than two photovoltaic conversion assemblies, wherein the junction box comprises more than two anode connecting ends and more than two cathode connecting ends; the anode connecting ends of the junction box are connected with anodes of corresponding photovoltaic conversion assemblies respectively; the cathode connecting ends are connected with cathodes of corresponding photovoltaic conversion assemblies respectively; when all the anode connecting ends of the junction box are mutually communicated and all the cathode connecting ends are also communicated, the photovoltaic conversion assemblies are connected in parallel, and output voltage of the solar panel is first voltage; and when all the anode connecting ends of the junction box are mutually disconnected and all the cathode connecting ends are also disconnected, the photovoltaic conversion assemblies are connected in series, and output voltage of the solar panel is second voltage. According to the solar panel provided by the invention, switching of various voltage is achieved, the application elasticity of the solar panel is increased, and the practicability of the solar panel is improved.
Description
Technical field
The present invention relates to technical field of thin-film solar, particularly a kind of solar panels of switchable voltage.
Background technology
A large amount of consumption of traditional energies such as oil with and storage capacity limited, and environment is existed shortcomings such as severe contamination, make clean energy resourcies such as wind energy, solar energy more and more be subject to people's attention, particularly solar energy is subjected to the region less-restrictive, and energy abundance more and more becomes the focus and emphasis of research.
A kind of thin-film solar cells is disclosed in publication number is the Chinese patent application of CN101775591A, as shown in Figure 1, described thin-film solar cells comprises from bottom to top successively: backboard 16, bottom electrode 15, N-type amorphous silicon layer 14, intrinsic amorphous silicon layer 13, P type amorphous silicon layer 12, transparency electrode 11 and glass substrate 10, wherein said P type amorphous silicon layer 12, intrinsic amorphous silicon layer 13 and amorphous silicon photovoltaic unit of N-type amorphous silicon layer 14 common compositions.
In the work engineering of thin-film solar cells, light is projected to glass substrate 10, sees through transparency electrode 11 arrival amorphous silicon photovoltaic unit, described amorphous silicon photovoltaic unit is converted to the signal of telecommunication with light signal, and the described signal of telecommunication is via transparency electrode 11 and bottom electrode 15 outputs.
Yet for most of purposes, the voltage that produces on the electrode of single thin-film solar cells is not enough.Therefore, in order to obtain the array that enough power and voltage just are made into solar panels a lot of single thin-film solar cells series connection, perhaps be called an assembly.In addition, in other application, then need sometimes assembly is together in parallel with the bigger electric current of output under less voltage.
Fig. 2 shows a kind of execution mode of thin-film solar cells series connection.Formed by a plurality of thin-film solar cells 25 series connection with reference to assembly 20 shown in Figure 2, described thin-film solar cells 25 is arranged side by side on substrate 21, and sunlight shines on the described thin-film solar cells 25 by described substrate 21.Particularly, described thin-film solar cells 25 comprises a transparency electrode 22 of being made by transparent conductive oxide, one by semi-conducting material, photovoltaic cells 23 and a bottom electrode 24 of being made by metal material (as aluminium) or transparent material (as tin oxide) of making as amorphous silicon hydrogenation thing; Described photovoltaic cells 23 can comprise a PIN structure, for example can be P type amorphous silicon layer 12, intrinsic amorphous silicon layer 13 and the N-type amorphous silicon layer 14 common amorphous silicon photovoltaic unit of forming shown in Figure 1.
Be formed with first groove 26 between the transparency electrode 22 of each thin-film solar cells 25, be formed with second groove 28 between the photovoltaic cells 23, be formed with the 3rd groove 30 between the bottom electrode 24.Wherein, be filled with the semi-conducting material in the photovoltaic cells 23 in described first groove 26, make described transparency electrode 22 mutually insulated on electric; Adjacent photovoltaic cells 23 is isolated mutually with second groove 28 as bottom electrode and filled metal material, and make the transparency electrode 22 of photovoltaic cells 23 and bottom electrode 24 be together in series mutually; Adjacent bottom electrode 24 is then separated by the 3rd groove 30, mutually insulated on electric.
In modular construction shown in Figure 2, form conductive strips (contact strip by the battery in outermost end, not shown among Fig. 2), just can obtain the magnitude of voltage after thin-film solar cells is connected, namely the voltage of final output is the voltage sum of each thin-film solar cells.
Yet in some other application, then may need less voltage but bigger electric current, at this moment just need a plurality of assemblies are together in parallel, normally, conductive strips corresponding to the assembly positive pole can be linked together, and will link together corresponding to the conductive strips of assembly negative pole.
Fig. 3 shows a kind of execution mode of thin-film solar cells parallel connection.With reference to figure 3, substrate 60 comprises assembly 31,41, and described assembly 31,41 comprises a plurality of thin-film solar cells respectively, and the structure similar of assembly 20 among its structure and Fig. 2.Be formed with conductive strips 32,33 respectively on the both positive and negative polarity position of described assembly 31; Be formed with conductive strips 42,43 respectively on the both positive and negative polarity position of described assembly 41.For with described assembly 31,41 parallel connections, need be with assembly 31 anodal locational conductive strips 32 and 41 anodal locational 42 corresponding connections of conductive strips of assembly, with the locational conductive strips 33 of assembly 31 negative poles and locational 43 corresponding connections of conductive strips of assembly 41 negative poles, concrete outside connected mode can be with reference to the equivalent schematic of figure 4 simultaneously.
In conjunction with reference to figure 4, connecting line 51 couples together assembly 31,41 positive pole, simultaneously 52 of connecting lines couple together assembly 31,41 negative pole, so just make assembly 31 and assembly 41 be together in parallel, thereby the voltage of final output are equivalent to the magnitude of voltage of an assembly 31 or assembly 41.
But above-mentioned solar panels of the prior art can't be realized switching or the adjusting of voltage, therefore, how to realize the voltage-regulation of thin film solar plate, and the production of optimization thin-film solar cells just becomes one of those skilled in the art's problem demanding prompt solution.
Summary of the invention
The problem that the present invention solves provides a kind of solar panels of adjustable voltage, optimizing the production of solar panels effectively, and improves the practicality of solar panels.
For addressing the above problem, the invention provides a kind of solar panels, comprising: terminal box and plural photoelectric conversion component; Described terminal box comprises plural anode connection terminal, plural negative pole link, and the anode connection terminal of described terminal box connects the positive pole of corresponding photoelectric conversion component respectively, and the negative pole link connects the negative pole of corresponding photoelectric conversion component respectively; Wherein, when whole anode connection terminal of described terminal box is interconnected and whole negative pole link when also being interconnected, each photoelectric conversion component parallel connection, and the output voltage of described solar panels is first voltage; When whole anode connection terminal of described terminal box disconnects and whole negative pole link when also disconnecting mutually mutually, each photoelectric conversion component series connection, and the output voltage of described solar panels is second voltage; Described first voltage is less than described second voltage.
Alternatively, described photoelectric conversion component comprises two sub-components at least, the anodal corresponding anode connection terminal that connects terminal box of described sub-component, the corresponding negative pole link that connects terminal box of negative pole, when the anode connection terminal of terminal box is interconnected and negative pole link when also being interconnected, the in parallel and described photoelectric conversion component of described sub-component is exported the first sub-voltage; When the anode connection terminal of terminal box disconnects and negative pole link when also disconnecting mutually mutually, described sub-component series connection and described photoelectric conversion component are exported the second sub-voltage.
Alternatively, the conducting of the anode connection terminal in the terminal box and negative pole link or disconnection are controlled by electronic switch or hand switch.
Alternatively, described electronic switch is MOS transistor.
Alternatively, described photoelectric conversion component is made up of a plurality of thin-film solar cells unit that is cascaded.
Alternatively, the quantity of a plurality of thin-film solar cells unit that comprises in each described photoelectric conversion component is identical.
Alternatively, anodal position and the negative pole position of described photoelectric conversion component are formed with conductive strips respectively, anode connection terminal in the terminal box is the corresponding conductive strips that connect the anodal position of photoelectric conversion component respectively, and the negative pole link is the corresponding conductive strips that connect photoelectric conversion component negative pole position respectively.
Alternatively, the anode connection terminal of described terminal box connects by lead with the positive pole of corresponding photoelectric conversion component; The negative pole link of described terminal box connects by lead with the negative pole of corresponding photoelectric conversion component.
Alternatively, the both positive and negative polarity of terminal box links to each other by welding manner with lead, and the both positive and negative polarity of photoelectric conversion component also links to each other by welding manner with lead.
Alternatively, the N that described second voltage is described first voltage times, wherein, N is the natural positive integer greater than 1.
Compared with prior art, the disclosed solar panels of the technical program have the following advantages at least:
1) comprises two above photoelectric conversion components in the solar panels of the present invention, the positive pole of each photoelectric conversion component is the corresponding positive level link that connects terminal box respectively, the corresponding negative pole link that connects terminal box of its negative pole, when the positive level link of terminal box is interconnected and its negative pole link when also being interconnected, each photoelectric conversion component is realized in parallel, and disconnect mutually and its negative pole link when also disconnecting mutually when the anode connection terminal of terminal box, each photoelectric conversion component is realized series connection.Like this, just realize the voltage-regulation of described solar panels, made solar panels satisfy the demand of multiple occasion to the full extent, thereby increased the application elasticity of solar panels, and then improved the practicality of solar panels.
2) in addition, the present invention can also optimize the manufacturing process of solar panels.This be because, solar panels of the present invention no longer carry out parallel connection by the inside connection, and therefore the demand that only just can satisfy multiple voltage by conducting or the disconnection of the switch in the terminal box has just simplified production stage when making solar panels, has improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of existing thin-film solar cells one embodiment;
Fig. 2 is the schematic diagram of a kind of execution mode of existing thin-film solar cells series connection;
Fig. 3 is the schematic diagram of a kind of execution mode of existing thin-film solar cells parallel connection;
Fig. 4 is the equivalent schematic of thin-film solar cells parallel connection shown in Figure 3;
Fig. 5 and Fig. 6 are the structural representations of solar panels embodiment one of the present invention;
Fig. 7 and Fig. 8 are the structural representations of solar panels embodiment two of the present invention;
Fig. 9～Figure 11 is the structural representation of solar panels embodiment three of the present invention.
Embodiment
The present inventor finds that though thin-film solar cells can be connected in the prior art or parallel connection, to satisfy certain actual demand, the mode of these serial or parallel connections can only be exported a kind of voltage, can't realize the adjusting of voltage.After above-mentioned thin-film solar cells is produced, just determined the wherein series connection between each assembly and relation in parallel, can't change its final output voltage.
Yet voltage required when practical application but is not quite similar, and under prior art, in order to satisfy these demands, just must produce the different solar panel of polytype output voltage.Be unfavorable for the optimization production of thin-film solar cells like this, increased the cost of manufacture of solar panels, and also reduced the practicality of thin-film solar cells.
Solar panels provided by the invention, the both positive and negative polarity of photoelectric conversion component wherein is the corresponding both positive and negative polarity link that connects terminal box respectively, conducting or the disconnection of both positive and negative polarity link by the control terminal box, can realize the serial or parallel connection of photoelectric conversion component easily, thereby can realize the voltage-regulation of solar panels easily, and then satisfied the demand of multiple occasion, increase the application elasticity of solar panels, and improved the practicality of solar panels.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.Herein, " more than " comprise given figure.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization under the situation of intension of the present invention.Therefore the present invention is not subjected to the restriction of following public embodiment.
Embodiment one
With reference to figure 5 and Fig. 6, the solar panels of this example comprise: substrate 100, terminal box 130 and be formed at photoelectric conversion component 110 and photoelectric conversion component 120 on the substrate 100.Photoelectric conversion component 110 and photoelectric conversion component 120 are formed on the same substrate 100 jointly.
Described photoelectric conversion component 110 and photoelectric conversion component 120 comprise a plurality of thin-film solar cells unit of equal number respectively.Because photoelectric conversion component 110 is identical with the quantity of the thin-film solar cells unit that photoelectric conversion component 120 comprises, manufacturing process is also identical, and therefore, the voltage of photoelectric conversion component 110 equates with the voltage of photoelectric conversion component 120.Convenient for following description, the voltage of photoelectric conversion component 110 is defined as V1, the voltage of photoelectric conversion component 120 also is V1 so.
Certainly, in other embodiments, the quantity of the thin-film solar cells unit that comprises in described photoelectric conversion component 110 and the photoelectric conversion component 120 also can be incomplete same, as long as the voltage and current that these two photoelectric conversion components produce is identical.Perhaps, further, the voltage and current that described photoelectric conversion component 110 and photoelectric conversion component 120 produce can also have certain deviation, as long as the difference between the voltage and the difference between the electric current are no more than preset range.
As an example particularly; described photoelectric conversion component 110 comprises 10000 thin-film solar cells unit; described photoelectric conversion component 120 comprises 10001 thin-film solar cells unit; though the voltage and current that these two photoelectric conversion components produce is also incomplete same; but because voltage difference and difference between current between these two photoelectric conversion components are all very small, so the solar panels of this structure also should fall within the scope of protection of the present invention.
Thin-film solar cells unit and thin-film solar cells of the prior art in the present embodiment are similar, so do not repeat them here.Be understandable that in actual applications, those skilled in the art can arrange the quantity of the thin-film solar cells unit that photoelectric conversion component 110 and photoelectric conversion component 120 comprise respectively according to the actual requirements, the voltage, the power that satisfy the demands with generation.
The anodal position of described photoelectric conversion component 110 is formed with conductive strips 112, and the negative pole position is formed with conductive strips 113; The anodal position of described photoelectric conversion component 120 is formed with conductive strips 122, and the negative pole position is formed with conductive strips 123.In the present embodiment, described conductive strips 112,113,122,123 material can be metals such as copper, aluminium, but in other embodiments, also can adopt other materials that can conduct electricity to form conductive strips, and it should not limit protection scope of the present invention.In the present embodiment in the generation type of conductive strips and the prior art generation type of conductive strips similar, so do not repeat them here.
Described terminal box 130 comprises anode connection terminal 1,2 and negative pole link 3,4.
In the present embodiment, connection or disconnection between the anode connection terminal 1,2 of described terminal box 130, and the connection between the negative pole link 3,4 or disconnect all can be controlled by the switch (not shown).Described switch can be electronic switch, MOS transistor for example, but it should not limit the protection range of its invention.Those skilled in the art can adopt other forms of switch even hand switch to substitute MOS transistor.
In the present embodiment, described anode connection terminal 1 connects the conductive strips 112 of photoelectric conversion component 110 anodal positions, and anode connection terminal 2 connects the conductive strips 122 of photoelectric conversion component 120 anodal positions; Described negative pole link 3 connects the conductive strips 113 of photoelectric conversion component 110 negative pole positions, and negative pole link 4 connects the conductive strips 123 of photoelectric conversion component 120 negative pole positions.Anode connection terminal 1 and the negative pole link 4 of terminal box 130 are drawn, to produce the output voltage on these solar panels.
Certainly, the both positive and negative polarity link of above-mentioned terminal box and the annexation of conductive strips in other embodiments, also can adopt other annexations only for illustrating.For example, the anode connection terminal 1 of terminal box 130 is connected with the conductive strips 122 of photoelectric conversion component 120 anodal positions, the anode connection terminal 2 of terminal box 130 is connected with the conductive strips 112 of photoelectric conversion component 110 anodal positions; The negative pole link 3 of terminal box 130 is connected with the conductive strips 123 of photoelectric conversion component 120 negative pole positions, the negative pole link 4 of terminal box 130 is connected with the conductive strips 113 of photoelectric conversion component 110 negative pole positions.In this connected mode, anode connection terminal 2 and the negative pole link 3 of terminal box 130 are drawn, to produce the output voltage on these solar panels.Certainly, those skilled in the art can also adopt other annexation, as long as without prejudice to spirit of the present invention, the distortion that the annexation between the both positive and negative polarity link of butted line box and the conductive strips of photoelectric conversion component is done all belongs to protection scope of the present invention.
In the present embodiment, adopt lead to be connected between the both positive and negative polarity link of terminal box 130 and photoelectric conversion component 110,120 the conductive strips, and described lead connect and can realize by the mode of welding.Only for illustrating, but it should not limit protection scope of the present invention to the connected mode of present embodiment, in other embodiments, and the connected mode that those skilled in the art also can adopt other to realize.
With reference to figure 5, when the anode connection terminal 1 of terminal box 130,2 and negative pole link 3,4 when all disconnecting, photoelectric conversion component 110 and photoelectric conversion component 120 are in series connection, therefore, output voltage on the solar panels is second voltage, be voltage (V1) sum of voltage (V1) and the photoelectric conversion component 120 of photoelectric conversion component 110, that is to say, the output voltage on the solar panels is 2V1 at this moment.
With reference to figure 6, when the anode connection terminal 1 and 2 of terminal box 130 is interconnected, and when its negative pole link 3 and 4 is interconnected, the positive pole of described photoelectric conversion component 110 links to each other with the positive pole of photoelectric conversion component 120, and the negative pole of photoelectric conversion component 110 links to each other with the negative pole of photoelectric conversion component 120, thereby makes photoelectric conversion component 110 and photoelectric conversion component 120 parallel connections.At this moment, the output voltage on the solar panels is first voltage, is the voltage V1 of photoelectric conversion component 110, is the voltage V1 of photoelectric conversion component 120 in other words.At this moment, anode connection terminal 1 connects all outside anodal wiring (not shown)s anodal and terminal box of monoblock solar panels, and negative pole link 4 connects all negative poles of monoblock solar panels and the outside negative pole wiring (not shown) of terminal box.
As the above analysis, the output voltage of solar panels shown in Figure 6 is half of output voltage of solar panels shown in Figure 5.
In the present embodiment, operation by the both positive and negative polarity link in the butted line box 130, the voltage of having realized solar panels switches, namely the voltage of solar panels can be switched between the second voltage 2V1 and the first voltage V1, thereby satisfied the demand of more occasions, thereby increased the range of application of solar panels, improved the application of solar panels.
Embodiment two
With reference to figure 7 and Fig. 8, the solar panels of present embodiment comprise: substrate 200; Terminal box 240; Be positioned at the photoelectric conversion component 210,220,230 on the substrate 200.
Compare with embodiment one, the difference of present embodiment is: the photoelectric conversion component quantity that comprises on the substrate 200 is three, i.e. photoelectric conversion component in the present embodiment 210, photoelectric conversion component 220, photoelectric conversion component 230; Accordingly, the both positive and negative polarity link in the terminal box 240 of present embodiment has six.Other structures and embodiment one in the present embodiment are similar, so do not repeat them here.
Similar with photoelectric conversion component 110, photoelectric conversion component 120 among the embodiment one, the photoelectric conversion component 210,220,230 in the present embodiment comprises a plurality of thin-film solar cells unit of equal number equally respectively.Because the quantity of the thin-film solar cells unit that comprises of photoelectric conversion component 210,220,230 is identical, manufacturing process is also identical, and therefore, photoelectric conversion component 210,220,230 voltage also equate.Convenient for following description, photoelectric conversion component 210,220,230 voltage are defined as V2 respectively.
Thin-film solar cells unit and thin-film solar cells of the prior art in the present embodiment are similar, so do not repeat them here.Be understandable that, in actual applications, those skilled in the art can arrange the quantity of the thin-film solar cells unit that photoelectric conversion component 210, photoelectric conversion component 220, photoelectric conversion component 230 comprise respectively according to the actual requirements, the voltage, the power that satisfy the demands with generation.
The anodal position of described photoelectric conversion component 210 is formed with conductive strips 212, and the negative pole position is formed with conductive strips 213; The anodal position of described photoelectric conversion component 220 is formed with conductive strips 222, and the negative pole position is formed with conductive strips 223; The anodal position of described photoelectric conversion component 230 is formed with conductive strips 232, and the negative pole position is formed with conductive strips 233.In the present embodiment among the material of conductive strips and generation type and the embodiment one material and the generation type of conductive strips similar, so do not repeat them here.
Described terminal box 240 comprises anode connection terminal A, B, C and negative pole link D, E, F.
Similar with the terminal box 130 among the embodiment one, in the present embodiment, the connection between the anode connection terminal A of terminal box 240, B, the C or disconnection, and the connection between the negative pole link D, E, F or disconnect all can be controlled by the switch (not shown).Described switch can be electronic switch, and as MOS transistor, but it should not limit the protection range of its invention.Those skilled in the art can adopt other forms of switch even hand switch to substitute MOS transistor.
In the present embodiment, the anode connection terminal A of described terminal box 240 connects the conductive strips 212 of photoelectric conversion component 210 anodal positions, anode connection terminal B connects the conductive strips 222 of photoelectric conversion component 220 anodal positions, and anode connection terminal C connects the conductive strips 232 of photoelectric conversion component 230 anodal positions; The negative pole link D of described terminal box 240 connects the conductive strips 213 of photoelectric conversion component 210 negative pole positions, negative pole link E connects the conductive strips 223 of photoelectric conversion component 220 negative pole positions, and negative pole link F connects the conductive strips 233 of photoelectric conversion component 230 negative pole positions.The anode connection terminal A of terminal box 240 and negative pole link F are drawn, to produce the output voltage on these solar panels.
Similar with embodiment one; those skilled in the art can also adopt other connected mode; as long as without prejudice to spirit of the present invention, the distortion that the annexation between the both positive and negative polarity link of butted line box and the conductive strips of photoelectric conversion component is done all belongs to protection scope of the present invention.
In the present embodiment, the same lead that adopts is connected between the both positive and negative polarity link of terminal box 240 and photoelectric conversion component 210,220,230 the conductive strips, and similar with the side connecting conductor formula of embodiment one, also can adopt the mode of welding to realize that described lead connects.Only for illustrating, but it should not limit protection scope of the present invention to the connected mode of present embodiment, in other embodiments, and the connected mode that those skilled in the art also can adopt other to realize.
Realize that in conjunction with the solar panels of Fig. 7 and the present embodiment of Fig. 8 the process that voltage switches elaborates again below.
With reference to figure 7, anode connection terminal A, B, C when terminal box 240, and negative pole link D, when E, F all disconnect, photoelectric conversion component 210,220,230 is in series connection, therefore, the output voltage on the solar panels is first voltage, is the voltage sum of these three photoelectric conversion components, that is to say that the output voltage on the solar panels of this moment is 3V2.
With reference to figure 8, when anode connection terminal A, B, the C of terminal box 240 are interconnected, and its negative pole link D, E, when F is interconnected, the positive pole of the positive pole of the positive pole of described photoelectric conversion component 210, photoelectric conversion component 220 and photoelectric conversion component 230 links to each other, and the negative pole of the negative pole of the negative pole of photoelectric conversion component 210, photoelectric conversion component 220 and photoelectric conversion component 230 links to each other, thereby makes photoelectric conversion component 210, photoelectric conversion component 220, photoelectric conversion component 230 parallel connections.At this moment, the output voltage on the solar panels is first voltage, is the voltage of one of them photoelectric conversion component, that is to say, the output voltage on the solar panels of this moment is V2.
As the above analysis, the output voltage of solar panels shown in Figure 8 be solar panels shown in Figure 7 output voltage 1/3rd.
In the present embodiment, operation by the both positive and negative polarity link in the butted line box 240, the voltage of having realized solar panels switches, namely the voltage of solar panels can be switched between the second voltage 3V2 and the first voltage V2, thereby satisfied the demand of more occasions, thereby increased the range of application of solar panels, improved the application of solar panels.
Embodiment three
With reference to figure 9, Figure 10, Figure 11, the solar panels of this example comprise: substrate 300; Terminal box 350; Be formed at the photoelectric conversion component 301,302 on the substrate 300, wherein, described photoelectric conversion component 301 comprises sub-component 310,320, and described photoelectric conversion component 302 comprises sub-component 330,340.
Compare with embodiment one, the difference of present embodiment is: be formed with two photoelectric conversion components 301 and 302 on the substrate 300, and described photoelectric conversion component 301 and 302 has comprised two sub-components, i.e. sub-component 310,320,330,340 again respectively; With it accordingly, comprise eight links in the terminal box 350, be respectively anode connection terminal a, b, c, d and negative pole link e, f, g, h.Other structures and the embodiment one of present embodiment are similar, so do not repeat them here.
In the present embodiment, sub-component 310, sub-component 320, sub-component 330 and sub-component 340 comprise a plurality of thin-film solar cells unit of equal number respectively.Because sub-component 310, sub-component 320, sub-component 330 are identical with the quantity of the thin-film solar cells unit that sub-component 340 comprises, manufacturing process is also identical, and therefore, the voltage of sub-component 310, sub-component 320, sub-component 330 and sub-component 340 also equates.Convenient for following description, the voltage of sub-component 310, sub-component 320, sub-component 330 and sub-component 340 is defined as V3.
Particularly, in the present embodiment, the anodal position of described sub-component 310 is formed with conductive strips 312, and the negative pole position is formed with conductive strips 313; The anodal position of described sub-component 320 is formed with conductive strips 322, and the negative pole position is formed with conductive strips 323; The anodal position of described sub-component 330 is formed with conductive strips 332, and the negative pole position is formed with conductive strips 333; The anodal position of described sub-component 340 is formed with conductive strips 342, and the negative pole position is formed with conductive strips 343.In the present embodiment in the material of conductive strips and generation type and the previous embodiment material of conductive strips and generation type similar, so do not repeat them here.
In this structure, the positive pole of sub-component 310 is equivalent to the positive pole of photoelectric conversion component 301, and the negative pole of sub-component 320 then is equivalent to the negative pole of photoelectric conversion component 301; The positive pole of sub-component 330 is equivalent to the positive pole of photoelectric conversion component 302, and the negative pole of sub-component 340 then is equivalent to the negative pole of photoelectric conversion component 302.
Described terminal box 350 comprises anode connection terminal a, b, c, d and negative pole link e, f, g, h.
In the present embodiment, the connection between the anode connection terminal a of described terminal box 350, b, c, the d or disconnection, and the connection between the negative pole link e, f, g, h or disconnect and all can adopt the control of switch (not shown).Described switch can be electronic switch, as MOS transistor.Similar with aforementioned two embodiment, those skilled in the art can adopt other forms of switch even hand switch to substitute MOS transistor.
In the present embodiment, the conductive strips 312 of the anode connection terminal a connexon assembly 310 anodal positions of described terminal box 350, the conductive strips 322 of anode connection terminal b connexon assembly 320 anodal positions, the conductive strips 332 of anode connection terminal c connexon assembly 330 anodal positions, the conductive strips 342 of anode connection terminal d connexon assembly 340 anodal positions; The conductive strips 313 of the negative pole link e connexon assembly 310 negative pole positions of described terminal box 350, the conductive strips 323 of negative pole link f connexon assembly 320 negative pole positions, the conductive strips 333 of negative pole link g connexon assembly 330 negative pole positions, the conductive strips 343 of negative pole link h connexon assembly 340 negative pole positions.The anode connection terminal a of terminal box 350 and negative pole link h are drawn, to produce the output voltage on these solar panels.In this connected mode, the positive pole of photoelectric conversion component 301 links to each other with the anode connection terminal a of terminal box 350, and the negative pole of photoelectric conversion component 301 links to each other with the negative pole link f of terminal box 350; And the positive pole of photoelectric conversion component 302 links to each other with the anode connection terminal c of terminal box 350, and the negative pole of photoelectric conversion component 302 links to each other with the negative pole link h of terminal box 350.
Realize that in conjunction with the solar panels of Fig. 9, Figure 10, the present embodiment of Figure 11 the process that voltage switches elaborates again below.
With reference to figure 9, anode connection terminal a, b, c, d when terminal box 350, and negative pole link e, f, g, when h all disconnects, photoelectric conversion component 301,302 is in series connection, and sub-component 310,320,330,340 also all is in series connection, and this moment, described photoelectric conversion component 301,302 was exported the second sub-voltage 2V3 respectively.Therefore, the output voltage on the solar panels is the voltage sum of four sub-components, also we can say, the output voltage on the solar panels is the output voltage sum of two photoelectric conversion components, and namely the output voltage on Ci Shi the solar panels is 4V3.
With reference to Figure 10, when anode connection terminal a, the c of terminal box 350 are interconnected, and its negative pole link f, when h is interconnected, the positive pole of described photoelectric conversion component 301 links to each other with the positive pole of photoelectric conversion component 302, and the negative pole of photoelectric conversion component 301 links to each other with the negative pole of photoelectric conversion component 302.Like this, described photoelectric conversion component 301 and photoelectric conversion component 302 are in state in parallel.And because anode connection terminal a, b are not communicated with, negative pole link e, f are not communicated with yet, and therefore, sub-component 310 is in series connection with sub-component 320; In like manner, owing to anode connection terminal c, d are not communicated with, and also connection of negative pole link g, h, therefore, sub-component 330 also is in series connection with sub-component 340.So, the photoelectric conversion component 301 of this moment still is the second sub-voltage with the voltage of photoelectric conversion component 302, namely be equal to the voltage sum 2V3 of two sub-components, and the output voltage on the solar panels equals the voltage of described photoelectric conversion component 301 at this moment, equal the voltage of described photoelectric conversion component 302 in other words, namely the output voltage on Ci Shi the solar panels is 2V3.
As the above analysis, the output voltage of solar panels shown in Figure 10 be solar panels shown in Figure 9 output voltage 1/2nd.
With reference to Figure 11, when anode connection terminal a, b, c, the d of terminal box 350 are interconnected, and its negative pole link e, f, g, when h is interconnected, the positive pole of the positive pole of the positive pole of described sub-component 310, sub-component 320, the positive pole of sub-component 330 and sub-component 340 links to each other; And the negative pole of the negative pole of the negative pole of the negative pole of sub-component 310, sub-component 320, sub-component 330 and sub-component 340 links to each other.Like this, just described sub-component 310, sub-component 320, sub-component 330, sub-component 340 are together in parallel respectively.At this moment, photoelectric conversion component 301,302 is exported the first sub-voltage V3 respectively, and the voltage voltage of a photoelectric conversion component in other words that equals one of them sub-component of the output voltage on the solar panels, and namely the output voltage on Ci Shi the solar panels is V3.
As the above analysis, the output voltage of solar panels shown in Figure 11 be solar panels shown in Figure 9 output voltage 1/4th.
Thus, in the present embodiment, operation by both positive and negative polarity link in the butted line box 350, just can be implemented in the mutual switching between the multiple voltage of solar panels, namely the voltage of solar panels can be switched between 4V3,2V3 or V3, thereby satisfied the demand of more occasions, thereby increased the range of application of solar panels, improved the application of solar panels.
According to the 3rd embodiment, for the anode connection terminal or the negative pole link that contain a greater number (for example 4,6,8,9,10,12,14,15,16,18,20 etc.), and the solar panels that also comprise sub-component in the photoelectric conversion component, connection that can be by respective switch or disconnection make sub-component or serial or parallel connection in the photoelectric conversion component, thereby export some intermediate voltages, wherein said intermediate voltage is greater than described first voltage and less than described second voltage.
Particularly, in the 3rd embodiment, the voltage (4V3) that solar panels shown in Figure 9 can be exported is defined as second voltage; The voltage (2V3) that solar panels shown in Figure 10 are exported is defined as intermediate voltage; The voltage that solar panels shown in Figure 11 are exported is defined as first voltage (V3).
Three kinds of execution modes of solar panels of the present invention have more than been introduced; but it should not limit protection scope of the present invention; those skilled in the art can also be according to the method that discloses in the previous embodiment and technology contents; and form more photoelectric conversion component in conjunction with actual needs at substrate; can also comprise one or more sub-components in each photoelectric conversion component, and by the annexation of conductive strips rationally being set in the terminal box in the both positive and negative polarity link and each photoelectric conversion component or sub-component to form how different voltage switching modes.
To sum up, above-mentioned disclosed solar panels have following beneficial effect at least:
1) comprise two above photoelectric conversion components in the solar panels of the present invention, and the corresponding connection with the anode connection terminal in the terminal box respectively of the positive pole of each photoelectric conversion component, its negative pole then respectively with the corresponding connection of negative pole link in the terminal box; When the positive level link of terminal box is interconnected and its negative pole link when also being interconnected, each photoelectric conversion component is realized in parallel, and disconnect mutually and its negative pole link when also disconnecting mutually when the anode connection terminal of terminal box, each photoelectric conversion component is realized series connection.Therefore, can realize the switching between the different voltages, thereby satisfy the voltage requirements of different occasions in a wider context, increase the application elasticity of solar panels, and then improve the practicality of solar panels.
2) because solar panels of the present invention can be realized the switching between the multiple voltage by the mode of external cabling box, thereby make solar panels in manufacture process, just simplify production procedure, improved the efficient of producing.
Though the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made possible change and modification; therefore; every content that does not break away from technical solution of the present invention; to any simple modification, equivalent variations and modification that above embodiment does, all belong to the protection range of technical solution of the present invention according to technical spirit of the present invention.
Claims (10)
1. solar panels is characterized in that, comprising: terminal box and plural photoelectric conversion component; Described terminal box comprises plural anode connection terminal, plural negative pole link, and the anode connection terminal of described terminal box connects the positive pole of corresponding photoelectric conversion component respectively, and the negative pole link connects the negative pole of corresponding photoelectric conversion component respectively;
Wherein, when whole anode connection terminal of described terminal box is interconnected and whole negative pole link when also being interconnected, each photoelectric conversion component parallel connection, and the output voltage of described solar panels is first voltage; When whole anode connection terminal of described terminal box disconnects and whole negative pole link when also disconnecting mutually mutually, each photoelectric conversion component series connection, and the output voltage of described solar panels is second voltage; Described first voltage is less than described second voltage.
2. solar panels as claimed in claim 1, it is characterized in that, described photoelectric conversion component comprises two sub-components at least, the anodal corresponding anode connection terminal that connects terminal box of described sub-component, the corresponding negative pole link that connects terminal box of negative pole, when the anode connection terminal of terminal box is interconnected and negative pole link when also being interconnected, the in parallel and described photoelectric conversion component of described sub-component is exported the first sub-voltage; When the anode connection terminal of terminal box disconnects and negative pole link when also disconnecting mutually mutually, described sub-component series connection and described photoelectric conversion component are exported the second sub-voltage.
3. solar panels as claimed in claim 1 is characterized in that, the conducting of the anode connection terminal in the terminal box and negative pole link or disconnection are controlled by electronic switch or hand switch.
4. solar panels as claimed in claim 3 is characterized in that, described electronic switch is MOS transistor.
5. solar panels as claimed in claim 1 is characterized in that, described photoelectric conversion component is made up of a plurality of thin-film solar cells unit that is cascaded.
6. solar panels as claimed in claim 5 is characterized in that, the quantity of a plurality of thin-film solar cells unit that comprises in each described photoelectric conversion component is identical.
7. solar panels as claimed in claim 1, it is characterized in that, anodal position and the negative pole position of described photoelectric conversion component are formed with conductive strips respectively, anode connection terminal in the terminal box is the corresponding conductive strips that connect the anodal position of photoelectric conversion component respectively, and the negative pole link is the corresponding conductive strips that connect photoelectric conversion component negative pole position respectively.
8. as claim 1 or 7 described solar panels, it is characterized in that the anode connection terminal of described terminal box connects by lead with the positive pole of corresponding photoelectric conversion component; The negative pole link of described terminal box connects by lead with the negative pole of corresponding photoelectric conversion component.
9. solar panels as claimed in claim 8 is characterized in that, the anode connection terminal of terminal box links to each other by welding manner with lead with the negative pole link, and the positive pole of photoelectric conversion component also links to each other by welding manner with lead with negative pole.
10. solar panels as claimed in claim 1 is characterized in that, the N that described second voltage is described first voltage times, wherein, N is the natural positive integer greater than 1.
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| CN2012100332239A CN103247705A (en) | 2012-02-14 | 2012-02-14 | Solar panel |
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| CN2012100332239A CN103247705A (en) | 2012-02-14 | 2012-02-14 | Solar panel |
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| CN105489687A (en) * | 2015-12-23 | 2016-04-13 | 南通美能得新能源科技股份有限公司 | Solar cell module with adjustable electrical performance parameters |
| CN105895379A (en) * | 2016-06-28 | 2016-08-24 | 肖锐 | High-efficiency solar panel |
| CN111540803A (en) * | 2020-05-06 | 2020-08-14 | 通威太阳能(眉山)有限公司 | Solar cell module and manufacturing method thereof |
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| US20110100414A1 (en) * | 2009-10-30 | 2011-05-05 | Taeho Moon | Thin film solar cell module |
| CN202034391U (en) * | 2011-05-19 | 2011-11-09 | 普乐新能源（蚌埠）有限公司 | Large-scale amorphous silicon solar battery component |
| CN102254970A (en) * | 2010-05-17 | 2011-11-23 | Lg电子株式会社 | Solar cell module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110100414A1 (en) * | 2009-10-30 | 2011-05-05 | Taeho Moon | Thin film solar cell module |
| CN102254970A (en) * | 2010-05-17 | 2011-11-23 | Lg电子株式会社 | Solar cell module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105489687A (en) * | 2015-12-23 | 2016-04-13 | 南通美能得新能源科技股份有限公司 | Solar cell module with adjustable electrical performance parameters |
| CN105895379A (en) * | 2016-06-28 | 2016-08-24 | 肖锐 | High-efficiency solar panel |
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| CN111540803A (en) * | 2020-05-06 | 2020-08-14 | 通威太阳能(眉山)有限公司 | Solar cell module and manufacturing method thereof |
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Application publication date: 20130814 |