CN109817748A - Crystal silicon photovoltaic cell connection group and component - Google Patents
Crystal silicon photovoltaic cell connection group and component Download PDFInfo
- Publication number
- CN109817748A CN109817748A CN201910202095.8A CN201910202095A CN109817748A CN 109817748 A CN109817748 A CN 109817748A CN 201910202095 A CN201910202095 A CN 201910202095A CN 109817748 A CN109817748 A CN 109817748A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic cell
- crystal silicon
- silicon photovoltaic
- bypass diode
- connection group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of crystal silicon photovoltaic cell connection group and components, including crystal silicon photovoltaic cell and bypass diode；Series relationship is formed between multiple battery strings, the anode of the first adjacent cell string per two adjacent battery strings is connected with the cathode of a bypass diode, the cathode of second adjacent cell string is connected with the anode of one bypass diode, and the cathode of the first adjacent cell string is connected with the anode of the second adjacent cell string；Present applicant proposes the connection relationships of a kind of crystal silicon photovoltaic cell and bypass diode, it is not parallel relationship between battery strings, reduces the output electric current of connection group, in one timing of output power, increase concatenated battery number or battery strings number, improves the output voltage of Crystalline Silicon PV Module；When the photovoltaic cell that hot spot effect occurs is in non-conterminous battery strings, the current reduction of bypass diode is flowed through, the output power of Crystalline Silicon PV Module is improved.
Description
Technical field
The present invention relates to photovoltaic energy technical fields, more particularly, to a kind of crystal silicon photovoltaic cell connection group and component.
Background technique
Crystalline Silicon PV Module in the prior art, hereinafter referred to as component, including crystal silicon photovoltaic cell connection group, below
Abbreviation battery connection group, the battery connection group use rectangle or rod-like crystal Silicon photrouics, hereinafter referred to as battery, and battery is through dividing
Battery strings are formed after group series connection, on its both ends parallel connection bypass diode, the output line of component and side after the series connection of every two battery strings
The lead-out wire of road diode is drawn out to terminal box from backplate, and bypass diode is located in terminal box, and output line is by terminal box
It draws；Alternatively, the structural schematic diagram of battery connection group as shown in Figure 1, uses electric current export direction for the strip of long side electricity
Battery strings after series connection are carried out parallel connection by pond, the grouped series connection of battery, on the both ends of the battery strings of an each parallel connection side in parallel
Road diode.The output voltage for the component that both connection types are constituted is low, electric current is big, and then increases the string of component and system
Join resistance loss.
Further, the connection type of battery in the prior art, it is other when hot spot effect occurs for some battery in component
Road diode directly bypasses all batteries of a series connection group, reduces the output electric energy of component；Alternatively, as shown in Figure 2
Equivalent circuit diagram, when hot spot effect occurs for a certain piece of cell piece, since the bypass of batteries in parallel connection string acts on, then bypass diode
Breakdown action can be slow, reduces the output electric current of entire component；Alternatively, equivalent circuit diagram as shown in Figure 3, when in parallel two
When respectively having a piece of cell piece that slight hot spot effect occurs in a battery strings, starting too early, short circuit may then occur for bypass diode
Fall two string battery strings, reduces the output voltage of component.
Summary of the invention
In view of this, being alleviated existing the purpose of the present invention is to provide a kind of crystal silicon photovoltaic cell connection group and component
Have that the output voltage of component present in technology is low, electric current is big, so that the series resistance losses of component and system are big, and
When hot spot effect occurs for battery, the inappropriate bypass effect of bypass diode, the technology for reducing the output electric energy of component is asked
Topic.
In a first aspect, the embodiment of the invention provides a kind of crystal silicon photovoltaic cell connection group, the crystalline silicon photovoltaic electricity
Pond connection group includes: crystal silicon photovoltaic cell and bypass diode；
Crystal silicon photovoltaic cell multiple battery strings in series, including the first battery strings, the second battery strings ..., n-th
Battery strings, n are the positive integer more than or equal to 3；
Series relationship is formed between the multiple battery strings, the anode of the first adjacent cell string per two adjacent battery strings
It is connected with the cathode of a bypass diode, the positive phase of the cathode and one bypass diode of the second adjacent cell string
Even, the cathode of the first adjacent cell string is connected with the anode of the second adjacent cell string.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating bypass diode includes the first auxiliary bypass diode and the second auxiliary bypass diode；
The anode of the first auxiliary bypass diode is connected with the cathode of first battery strings, cathode and described first
The anode of battery strings is connected；
The anode of the second auxiliary bypass diode is connected with the cathode of n-th battery strings, cathode and n-th electricity
The anode of pond string is connected.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
Stating crystal silicon photovoltaic cell connection group further includes connection conductor, and the connection conductor is located at the battery strings and two poles of the bypass
Between pipe, the bypass diode is arranged on the connection conductor, and the connection conductor is connected with the bypass diode, structure
At a closed loop, the closed loop is in the crystal silicon photovoltaic cell connection group periphery.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein institute
The shape for stating crystal silicon photovoltaic cell is strip.
Second aspect, the embodiment of the present invention also provide a kind of Crystalline Silicon PV Module, and the Crystalline Silicon PV Module includes:
Crystal silicon photovoltaic cell connection group described in first aspect, further includes: front panel, packaging adhesive film, backplate, terminal box and extraction
Line；
The front panel and the backplate are fixed by the packaging adhesive film, and the packaging adhesive film is filled in the front
Between plate and the backplate；
The crystal silicon photovoltaic cell connection group is arranged between the front panel and the backplate；
The terminal box is arranged on the backplate, positioned at the both ends of the crystal silicon photovoltaic cell connection group；
The lead-out wire is connected with the crystal silicon photovoltaic cell connection group, and the lead-out wire passes through on the backplate
Fairlead is linked into the terminal box, and draws from the terminal box.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein institute
Stating Crystalline Silicon PV Module further includes metal edge frame, and the surrounding of the front panel and the backplate is arranged in the metal edge frame
Edge.
In conjunction with second aspect, the embodiment of the invention provides second of possible embodiments of second aspect, wherein institute
Stating packaging adhesive film includes EVA adhesive film, POE glue film.
In conjunction with second aspect, the embodiment of the invention provides the third possible embodiments of second aspect, wherein institute
The connection type for stating the crystal silicon photovoltaic cell in crystal silicon photovoltaic cell connection group is interconnection conductors connection or stacked tile type connection.
The third aspect, the embodiment of the present invention also provide a kind of Crystalline Silicon PV Module, and the Crystalline Silicon PV Module includes:
Crystal silicon photovoltaic cell connection group described in first aspect, further includes: front panel, packaging adhesive film, backplate, terminal box and extraction
Line；
The front panel and the backplate are fixed by the packaging adhesive film, and the packaging adhesive film is filled in the front
Between plate and the backplate；
The outside of the backplate is arranged in bypass diode in the crystal silicon photovoltaic cell connection group, by described
Connecting hole on backplate is connect with the connection conductor of the crystal silicon photovoltaic cell connection group, the bypass diode sealing
Material is sealed in the outside of the backplate；
Crystal silicon photovoltaic cell in the crystal silicon photovoltaic cell connection group is arranged in the front panel and the back side
Between plate；
The terminal box is arranged on the backplate, positioned at the both ends of the crystal silicon photovoltaic cell connection group；
The lead-out wire is connected with the crystal silicon photovoltaic cell connection group, and the lead-out wire passes through on the backplate
Fairlead is linked into the terminal box, and draws from the terminal box.
The embodiment of the present invention brings following the utility model has the advantages that the embodiment of the invention provides a kind of crystal silicon photovoltaic cell companies
Group and component are connect, the crystal silicon photovoltaic cell connection group includes: crystal silicon photovoltaic cell and bypass diode；Crystalline silicon light
Lie prostrate battery multiple battery strings in series, including the first battery strings, the second battery strings ..., the n-th battery strings, n be more than or equal to 3
Positive integer；Form series relationship between multiple battery strings, per two adjacent battery strings the first adjacent cell string anode with
The cathode of one bypass diode is connected, and the cathode of the second adjacent cell string is connected with the anode of one bypass diode,
The cathode of first adjacent cell string is connected with the anode of the second adjacent cell string.The application is by proposing a kind of crystalline silicon photovoltaic
Battery connection group and component further propose crystal silicon photovoltaic cell in a kind of crystal silicon photovoltaic cell connection group and other
Connection relationship between the diode of road reduces crystal silicon photovoltaic cell connection group so that not being parallel relationship between battery strings
Output electric current increase concatenated battery number or battery strings number in the case where output power is constant, improve crystalline silicon photovoltaic
The output voltage of component；Meanwhile when the crystal silicon photovoltaic cell that hot spot effect occurs is respectively at non-conterminous battery strings, stream
Current reduction through bypass diode, improves the output voltage or/and output electric current of Crystalline Silicon PV Module, and then improves
The output power of Crystalline Silicon PV Module alleviates the grouped series connection of battery in component in the prior art, by the electricity after series connection
Pond string carries out parallel connection, and in the both ends of the battery strings of an each parallel connection bypass diode in parallel, this connection type causes component
Output voltage is low, electric current is big, and then increase component and its system series resistance losses and bypass diode it is inappropriate
Bypass effect caused by output electric energy reduction the technical issues of.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of crystal silicon photovoltaic cell connection group in the prior art；
Fig. 2 is a kind of equivalent circuit diagram of battery strings that hot spot effect occurs in the prior art；
Fig. 3 is the equivalent circuit diagram of another battery strings that hot spot effect occurs in the prior art；
Fig. 4 is a kind of structural schematic diagram of crystal silicon photovoltaic cell connection group provided in an embodiment of the present invention；
Fig. 5 is a kind of equivalent electricity of crystal silicon photovoltaic cell connection group that hot spot effect occurs provided in an embodiment of the present invention
Lu Tu；
Fig. 6 is the electric current-of the particular battery string in a kind of crystal silicon photovoltaic cell connection group provided in an embodiment of the present invention
Voltage characteristic curve；
Fig. 7 is the equivalent of another crystal silicon photovoltaic cell connection group that hot spot effect occurs provided in an embodiment of the present invention
Circuit diagram；
Fig. 8 is the equivalent circuit diagram that the crystal silicon photovoltaic cell connection group of hot spot effect occurs in the prior art；
Fig. 9 is a kind of structural schematic diagram of Crystalline Silicon PV Module provided in an embodiment of the present invention；
Figure 10 is a kind of the schematic diagram of the section structure of Crystalline Silicon PV Module provided in an embodiment of the present invention；
Figure 11 is the schematic diagram of the section structure of another Crystalline Silicon PV Module provided in an embodiment of the present invention；
Figure 12 is the schematic diagram of the section structure of another Crystalline Silicon PV Module provided in an embodiment of the present invention.
Icon: 41- crystal silicon photovoltaic cell；42- bypass diode；The first battery strings of 411-；The second battery strings of 412-；
413- third battery strings；The 4th battery strings of 414-；The 5th battery strings of 415-；The 6th battery strings of 416-；The 7th battery strings of 417-；41
(n-1) the-the (n-1)th battery strings；The n-th battery strings of 41n-；The first bypass diode of 421-；The second bypass diode of 422-；423-
Three bypass diodes；The 4th bypass diode of 424-；The 5th bypass diode of 425-；The 6th bypass diode of 426-；42(n-
2) the-the n-th -2 bypass diode；42 (n-1)-the (n-1)th bypass diodes；42A- the first auxiliary bypass diode；42B- second is auxiliary
Help bypass diode；43- positive outside wire；44- negative outside wire；91- front panel；92- packaging adhesive film；93- backplate；94-
Terminal box；95- lead-out wire；96- metal edge frame；97- crystal silicon photovoltaic cell connection group.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, in the prior art, Crystalline Silicon PV Module uses electric current export direction for the strip battery of long side, electricity
Battery strings after series connection are carried out parallel connection by the grouped series connection in pond, in the bypass two in parallel of the both ends of the battery strings of each parallel connection
Pole pipe.The output voltage for the component that this connection type is constituted is low, electric current is big, and then increases the series resistance of component and system
Loss, and when hot spot effect occurs for battery, the inappropriate bypass effect of bypass diode reduces the output electricity of component
Energy.Based on this, a kind of crystal silicon photovoltaic cell connection group provided in an embodiment of the present invention and component can be alleviated in the prior art
The output voltage of existing component is low, electric current is big, so that component and Cascade System resistance loss are big, and works as battery
When hot spot effect, bypass diode inappropriate bypass effect, the technical issues of reducing the output electric energy of component.Due to reducing
The output electric current of crystal silicon photovoltaic cell connection group, in the case where output power is constant, increase concatenated battery the piece number or
Battery strings number improves the output voltage of component；Meanwhile as long as when the battery that hot spot effect occurs is not respectively at adjacent electricity
When pond is gone here and there, the electric current for flowing through bypass diode will be reduced, and improve the output voltage or/and output electric current of component, Jin Erti
The high output power of component.
For convenient for understanding the present embodiment, first to a kind of crystal silicon photovoltaic cell disclosed in the embodiment of the present invention
Connection group describes in detail.
Embodiment one:
The embodiment of the invention provides a kind of crystal silicon photovoltaic cell connection group, the crystal silicon photovoltaic cell connection group packets
It includes: crystal silicon photovoltaic cell 41 and bypass diode 42, as shown in Fig. 4 a kind of knot of crystal silicon photovoltaic cell connection group
Structure schematic diagram；
The multiple battery strings in series of crystal silicon photovoltaic cell 41, including the first battery strings 411, the second battery strings
412 ..., the n-th battery strings 41n, n is the positive integer more than or equal to 3；
Series relationship is formed between multiple battery strings, the anode and one of the first adjacent cell string per two adjacent battery strings
The cathode of a bypass diode is connected, and the cathode of the second adjacent cell string is connected with the anode of one bypass diode, the
The cathode of one adjacent cell string is connected with the anode of the second adjacent cell string.
Specifically, the connection relationship of battery strings and bypass diode are as follows: bypass diode 42 includes the first bypass diode
421, the second bypass diode 422, third bypass diode 423, the 4th bypass diode 424, the 5th bypass diode 425,
6th bypass diode 426 ..., the n-th -2 bypass diode 42 (n-2), the (n-1)th bypass diode 42 (n-1).
Wherein, the cathode of the first battery strings 411 respectively with the anode of the second battery strings 412 and the second bypass diode 422
Cathode be connected, the second bypass diode 422 anode respectively with the cathode of third battery strings 413, the 4th battery strings 414 just
Extremely be connected, and so on, the anode of the n-th -2 bypass diode 42 (n-2) respectively with the cathode of the (n-1)th battery strings 41 (n-1), the
The anode of n battery strings 41n is connected.
The anode of first battery strings 411 is connected with the cathode of the first bypass diode 421, while and crystal silicon photovoltaic cell
The positive outside wire 43 of connection group is connected, the anode and the cathode and third of the second battery strings 412 of the first bypass diode 421
The anode of battery strings 413 is connected, and so on, the cathode of the anode and the n-th battery strings 41n of the (n-1)th bypass diode 42 (n-1)
And the negative outside wire 44 of crystal silicon photovoltaic cell connection group is connected.
Specifically, the shape of crystal silicon photovoltaic cell 41 is strip, and electric current is by crystalline silicon photovoltaic in the embodiment of the present invention
The long side of battery 41 is drawn, not in parallel between battery strings, by increasing concatenated battery number or battery strings number, improves crystalline silicon
The output power of photovoltaic cell connection group, wherein the shape of crystal silicon photovoltaic cell may be other shapes, in practical application
In, the shape of crystal silicon photovoltaic cell can be configured according to actual needs.
A kind of crystal silicon photovoltaic cell connection group provided in an embodiment of the present invention, the crystal silicon photovoltaic cell connection group packet
It includes: crystal silicon photovoltaic cell and bypass diode；Crystal silicon photovoltaic cell multiple battery strings in series, including the first battery
String, the second battery strings ..., the n-th battery strings, n is positive integer more than or equal to 3；Series relationship, every phase are formed between multiple battery strings
The anode of first adjacent cell string of two adjacent battery strings is connected with the cathode of a bypass diode, the second adjacent cell string
Cathode be connected with the anode of one bypass diode, the cathode of the first adjacent cell string and the second adjacent cell string are just
Extremely it is connected.The application further proposes a kind of crystalline silicon photovoltaic by proposing a kind of crystal silicon photovoltaic cell connection group
The connection relationship between crystal silicon photovoltaic cell and bypass diode in battery connection group, so that not being in parallel between battery strings
Relationship reduces the output electric current of crystal silicon photovoltaic cell connection group, in the case where output power is constant, increases concatenated electricity
Pond number or battery strings number, improve the output voltage of Crystalline Silicon PV Module；Meanwhile as long as when the battery of hot spot effect occurs not
When being respectively at adjacent battery strings, the electric current for flowing through bypass diode will reduce by 50%, while improve crystalline silicon photovoltaic
The output voltage or/and output electric current of component, and then the output power of Crystalline Silicon PV Module is improved, alleviate the prior art
Battery strings after series connection are carried out parallel connection, in each parallel connection by the grouped series connection of crystal silicon photovoltaic cell in middle silicon photovoltaic module
Battery strings a both ends bypass diode in parallel, the output voltage of Crystalline Silicon PV Module caused by this connection type
It is low, electric current is big, and then increase the series resistance losses of component and system and bypass diode inappropriate bypass effect is made
At output electric energy reduce the technical issues of.
As an alternative embodiment, the bypass diode 42 includes the auxiliary of the first auxiliary bypass diode 42A and second
Bypass diode 42B, wherein the anode of the first auxiliary bypass diode 42A is connected with the cathode of the first battery strings 411, cathode
It is connected with the anode of the first battery strings 411；The cathode phase of the anode and the n-th battery strings 41n of second auxiliary bypass diode 42B
Even, cathode is connected with the anode of the n-th battery strings 41n.
In embodiments of the present invention, the first auxiliary bypass diode 42A and the second auxiliary bypass diode 42B be with it simultaneously
The first battery strings and the n-th battery strings of connection provide hot spot effect protection, meanwhile, make all bypass diodes 42 and connection conductor shape
At a loop, which has potential isolation effect, is conducive to mitigate in crystal silicon photovoltaic cell connection group close to metal edges
The PID effect of the crystal silicon photovoltaic cell of frame.
As an alternative embodiment, crystal silicon photovoltaic cell connection group further includes connection conductor, and connection conductor is located at battery
Between string and bypass diode 42, on connection conductor, connection conductor is connected the setting of bypass diode 42 with bypass diode 42,
A closed loop is constituted, closed loop is in crystal silicon photovoltaic cell connection group periphery.
In the embodiment of the present invention, bypass diode 42 connect to form delta network with battery strings, as shown in figure 5, in figure
The equivalent circuit diagram for showing a kind of crystal silicon photovoltaic cell connection group that hot spot effect occurs, that is, be shown in the figure when certain
Equivalent circuit diagram when hot spot effect occurs for the battery in battery strings, for example, when one or several electricity in the 4th battery strings 414
When hot spot effect occurs for pond, third bypass diode 423 and the 4th bypass diode 424 can be simultaneously turned on, and flow through third bypass
Diode 423 connects the 1/2 of the total current value of group, phase with the current value of the 4th bypass diode 424 for crystal silicon photovoltaic cell
Flow through third battery strings 413 with answering, the electric current of the 5th battery strings 415 be equally crystal silicon photovoltaic cell connection group total current value
1/2.In these cases, as shown in fig. 6, the particular battery in a kind of crystal silicon photovoltaic cell connection group is shown in the figure
Current-voltage (I-V) performance diagram of string, in figure, (1/2) ImaxTo flow through third battery strings 413 and the 5th battery strings 415
Electric current, ImaxFor the electric current for flowing through other battery strings, wherein also having for third battery strings 413 or the 5th battery strings 415 is same
The I-V characteristic curve of sample.Current value due to flowing through third battery strings 413, the 5th battery strings 415 is its maximum current Imax's
1/2, therefore, total output voltage improves Δ V.
When there is crystal silicon photovoltaic cell that hot spot effect occurs in a battery strings, crystal silicon photovoltaic cell connects the prior art
The output voltage values of this battery strings can be reduced by connecing group voltage value of output, compared with prior art, the voltage of the application output
The reduced degree of value is small, and then the output power loss of component is also small.
In the embodiment of the present invention, bypass diode 42 connect to form delta network with battery strings, as shown in fig. 7, in figure
The equivalent circuit diagram for showing another crystal silicon photovoltaic cell connection group that hot spot effect occurs, when adjacent two battery strings are equal
When having battery that hot spot effect occurs, for example, the 6th battery strings 416 and the 7th battery strings 417 in Fig. 7, corresponding bypass diode
It can be connected, i.e. the 6th bypass diode 426, bypass two battery strings that hot spot effect occurs, i.e. the 6th battery strings 416 and the
Seven battery strings 417；As shown in Fig. 8 the equivalent electricity of the crystal silicon photovoltaic cell connection group of hot spot effect occurs in the prior art
Lu Tu, as seen from the figure, the prior art can bypass four battery strings under some circumstances, i.e. bypass two poles via third in Fig. 8
Pipe 423, the 5th bypass diode 425 bypass third battery strings 413, the 4th battery strings 414, the 415, the 6th electricity of the 5th battery strings
Pond string 416, compared with prior art, in the case where same generation hot spot effect, the crystal silicon photovoltaic cell connection group of the application
The string number for the battery strings being bypassed can be reduced, and then improves the defeated of crystal silicon photovoltaic cell connection group compared with prior art
Electric energy out.
Embodiment two:
The embodiment of the invention also provides a kind of Crystalline Silicon PV Modules, as shown in Fig. 9, Figure 10, Figure 11, Figure 12, in figure
Show a kind of structural schematic diagram of Crystalline Silicon PV Module, Crystalline Silicon PV Module includes: crystal described in embodiment one
Silicon photrouics connection group 97, further includes: front panel 91, packaging adhesive film 92, backplate 93, terminal box 94 and lead-out wire 95；
Front panel 91 and backplate 93 are fixed by packaging adhesive film 92, which is filled in front panel 91 and the back side
Between plate 93；
The setting of crystal silicon photovoltaic cell connection group 97 is in front between plate 91 and backplate 93；
Terminal box 94 is arranged on overleaf plate 93, positioned at the both ends of crystal silicon photovoltaic cell connection group 97；
Lead-out wire 95 is connected with crystal silicon photovoltaic cell connection group 97, and lead-out wire 95 is connect by the fairlead on backplate 93
Enter to terminal box 94, and drawn from terminal box 94.Wherein, lead-out wire 95 includes positive outside wire and negative outside wire, anode
One end of lead-out wire is connected with the anode of the first battery strings of crystal silicon photovoltaic cell connection group 97, one end of negative outside wire with
The cathode of n-th battery strings of crystal silicon photovoltaic cell connection group 97 is connected.
As an alternative embodiment, Crystalline Silicon PV Module further includes metal edge frame 96, and metal edge frame 96 is arranged in front
The edge of plate 91 and backplate 93.
Specifically, as an alternative embodiment, the company of the crystal silicon photovoltaic cell in crystal silicon photovoltaic cell connection group 97
Connecing mode is interconnection conductors connection or stacked tile type connection.
Specifically, usually bypass diode 42 is encapsulated in terminal box 94 in the prior art.Compared with prior art,
Crystal silicon photovoltaic cell 41 is elongate in shape in the crystal silicon photovoltaic cell connection group of the application, than common rectangular or circular electric
Pool area is small, and output electric current is also small, meanwhile, triangle connection is formed between battery strings and bypass diode 42, is reduced and is flowed through
The electric current of bypass diode 42, therefore can choose the bypass diode 42 of smaller current capacity, and then can will bypass two poles
Pipe 42 is encapsulated between front panel 91 and backplate 93.To simplify the structure of terminal box 94, the body of terminal box 94 is reduced
Product, therefore reduce the blocking to the backplate 93 of Crystalline Silicon PV Module of terminal box 94, and terminal box is reduced to crystalline silicon light
The blocking for backplate of volt component is very important the Crystalline Silicon PV Module of double-side cell.Further, simplify
Terminal box reduces the cost of terminal box 94.Meanwhile bypass diode 42 being encapsulated in terminal box 94 in the prior art, due to
The electric current for flowing through bypass diode 42 is larger, easily causes the damage of terminal box 94, reduces the reliability of terminal box 94.With it is existing
Technology is compared, and bypass diode 42 is encapsulated in the outside of terminal box 94, and bypass diode 42 is specifically encapsulated in front panel
Between 91 and backplate 93, the reliability of terminal box 94 is improved.
In embodiments of the present invention, specifically, as shown in Fig. 10 a kind of cross-section structure of Crystalline Silicon PV Module shows
It is intended to, the connection type of the crystal silicon photovoltaic cell in figure is interconnection conductors connection；As shown in Fig. 11 another crystalline silicon
The schematic diagram of the section structure of photovoltaic module, the connection type of the crystal silicon photovoltaic cell in figure are stacked tile type connection；Further,
Bypass diode is encapsulated between front panel 91 and backplate 93 in Figure 10 and Figure 11.
Specifically, packaging adhesive film 92 includes EVA adhesive film, POE glue film etc., wherein packaging adhesive film as an alternative embodiment
92 type can be configured according to the actual situation, and the present embodiment is exemplary description, be not especially limited to this.
Further, the embodiment of the invention also provides another Crystalline Silicon PV Module, Crystalline Silicon PV Module includes:
Crystal silicon photovoltaic cell connection group 97 described in embodiment one, further includes: front panel 91, packaging adhesive film 92, backplate 93, wiring
Box 94 and lead-out wire 95；
Front panel 91 and backplate 93 are fixed by packaging adhesive film 92, and packaging adhesive film 92 is filled in front panel 91 and backplate
Between 93；
The outside of overleaf plate 93 is arranged in bypass diode 42 in crystal silicon photovoltaic cell connection group 97, passes through backplate
Connecting hole on 93 is connect with the connection conductor of crystal silicon photovoltaic cell connection group 97, and bypass diode 42 is sealed with sealing material
In the outside of backplate 93；
Battery in crystal silicon photovoltaic cell connection group 97 and its setting of connection conductor in front plate 91 and backplate 93 it
Between；
Overleaf 93 outside of plate is arranged in terminal box 94, positioned at the both ends of crystal silicon photovoltaic cell connection group 97；
Lead-out wire 95 is connected with crystal silicon photovoltaic cell connection group 97, and lead-out wire 95 is connect by the fairlead on backplate 93
Enter to terminal box 94, and drawn from terminal box 94.
Specifically, the schematic diagram of the section structure of another kind Crystalline Silicon PV Module as shown in Fig. 12, crystalline silicon photovoltaic
Bypass diode 42 in battery connection group 97 is encapsulated in backplate 93 by sealing material and connects far from crystal silicon photovoltaic cell
The side of group 97, bypass diode 42 are led by the connection of connecting hole and crystal silicon photovoltaic cell connection group 97 on backplate 93
Body is connected, in crystal silicon photovoltaic cell connection group 97, in addition to bypass diode, other component setting in front plate and backplate it
Between.For example, crystal silicon photovoltaic cell is arranged in front between plate and backplate, wherein compared with prior art, the present invention is implemented
The packaged type of the bypass diode of example, simplifies the structure of terminal box, reduces the volume of terminal box, reduce terminal box pair
Crystalline Silicon PV Module back is blocked, and further reduced terminal box cost, meanwhile, improve the reliability of terminal box.
Crystalline Silicon PV Module provided by the embodiment of the present invention, with crystal silicon photovoltaic cell provided by above-described embodiment
Connection group technical characteristic having the same reaches identical technical effect so also can solve identical technical problem.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can be with reference to the corresponding process in previous embodiment, details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of crystal silicon photovoltaic cell connection group, which is characterized in that the crystal silicon photovoltaic cell connection group includes: crystalline silicon
Photovoltaic cell and bypass diode；
Crystal silicon photovoltaic cell multiple battery strings in series, including the first battery strings, the second battery strings ..., the n-th battery
String, n are the positive integer more than or equal to 3；
Series relationship is formed between the multiple battery strings, the anode and one of the first adjacent cell string per two adjacent battery strings
The cathode of a bypass diode is connected, and the cathode of the second adjacent cell string is connected with the anode of one bypass diode, institute
The cathode for stating the first adjacent cell string is connected with the anode of the second adjacent cell string.
2. crystal silicon photovoltaic cell connection group according to claim 1, which is characterized in that the bypass diode includes the
One auxiliary bypass diode and the second auxiliary bypass diode；
The anode of the first auxiliary bypass diode is connected with the cathode of first battery strings, cathode and first battery
The anode of string is connected；
The anode of the second auxiliary bypass diode is connected with the cathode of n-th battery strings, cathode and n-th battery strings
Anode be connected.
3. crystal silicon photovoltaic cell connection group according to claim 1, which is characterized in that the crystal silicon photovoltaic cell connects
Connecing group further includes connection conductor, and the connection conductor is between the battery strings and the bypass diode, the bypass two
Pole pipe is arranged on the connection conductor, and the connection conductor is connected with the bypass diode, constitutes a closed loop, institute
It states closed loop and is in the crystal silicon photovoltaic cell connection group periphery.
4. crystal silicon photovoltaic cell connection group according to claim 1, which is characterized in that the crystal silicon photovoltaic cell
Shape is strip.
5. a kind of Crystalline Silicon PV Module, which is characterized in that the Crystalline Silicon PV Module includes: any one of claim 1-4
The crystal silicon photovoltaic cell connection group, further includes: front panel, packaging adhesive film, backplate, terminal box and lead-out wire；
The front panel and the backplate are fixed by the packaging adhesive film, the packaging adhesive film be filled in the front panel with
Between the backplate；
The crystal silicon photovoltaic cell connection group is arranged between the front panel and the backplate；
The terminal box is arranged on the backplate, positioned at the both ends of the crystal silicon photovoltaic cell connection group；
The lead-out wire is connected with the crystal silicon photovoltaic cell connection group, and the lead-out wire passes through the extraction on the backplate
Hole is linked into the terminal box, and draws from the terminal box.
6. Crystalline Silicon PV Module according to claim 5, which is characterized in that the Crystalline Silicon PV Module further includes gold
Belong to frame, the edge of the front panel and the backplate is arranged in the metal edge frame.
7. Crystalline Silicon PV Module according to claim 5, which is characterized in that the packaging adhesive film include EVA adhesive film,
POE glue film.
8. Crystalline Silicon PV Module according to claim 5, which is characterized in that in the crystal silicon photovoltaic cell connection group
Crystal silicon photovoltaic cell connection type be interconnection conductors connect or stacked tile type connection.
9. a kind of Crystalline Silicon PV Module, which is characterized in that the Crystalline Silicon PV Module includes: any one of claim 1-4
The crystal silicon photovoltaic cell connection group, further includes: front panel, packaging adhesive film, backplate, terminal box and lead-out wire；
The front panel and the backplate are fixed by the packaging adhesive film, the packaging adhesive film be filled in the front panel with
Between the backplate；
The outside of the backplate is arranged in bypass diode in the crystal silicon photovoltaic cell connection group, passes through the back side
Connecting hole on plate is connect with the connection conductor of the crystal silicon photovoltaic cell connection group, the bypass diode sealing material
It is sealed in the outside of the backplate；
Crystal silicon photovoltaic cell setting in the crystal silicon photovoltaic cell connection group the front panel and the backplate it
Between；
The terminal box is arranged on the backplate, positioned at the both ends of the crystal silicon photovoltaic cell connection group；
The lead-out wire is connected with the crystal silicon photovoltaic cell connection group, and the lead-out wire passes through the extraction on the backplate
Hole is linked into the terminal box, and draws from the terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202095.8A CN109817748A (en) | 2019-03-18 | 2019-03-18 | Crystal silicon photovoltaic cell connection group and component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202095.8A CN109817748A (en) | 2019-03-18 | 2019-03-18 | Crystal silicon photovoltaic cell connection group and component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109817748A true CN109817748A (en) | 2019-05-28 |
Family
ID=66609221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202095.8A Withdrawn CN109817748A (en) | 2019-03-18 | 2019-03-18 | Crystal silicon photovoltaic cell connection group and component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109817748A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165006A (en) * | 2019-06-17 | 2019-08-23 | 苏州亚傲鑫企业管理咨询有限公司 | A kind of crystal silicon photovoltaic cell connection group of polarity complementation |
| CN111725345A (en) * | 2020-06-29 | 2020-09-29 | 合肥阳光新能源科技有限公司 | Photovoltaic module circuit, photovoltaic module and photovoltaic power plant |
| CN111769801A (en) * | 2020-04-20 | 2020-10-13 | 苏州元昱新能源有限公司 | Photovoltaic module for detecting positive shielding of photovoltaic cell in module |
-
2019
- 2019-03-18 CN CN201910202095.8A patent/CN109817748A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165006A (en) * | 2019-06-17 | 2019-08-23 | 苏州亚傲鑫企业管理咨询有限公司 | A kind of crystal silicon photovoltaic cell connection group of polarity complementation |
| CN110165006B (en) * | 2019-06-17 | 2020-10-20 | 苏州亚傲鑫企业管理咨询有限公司 | Complementary crystalline silicon photovoltaic cell of polarity connects group |
| CN111769801A (en) * | 2020-04-20 | 2020-10-13 | 苏州元昱新能源有限公司 | Photovoltaic module for detecting positive shielding of photovoltaic cell in module |
| CN111725345A (en) * | 2020-06-29 | 2020-09-29 | 合肥阳光新能源科技有限公司 | Photovoltaic module circuit, photovoltaic module and photovoltaic power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109817748A (en) | Crystal silicon photovoltaic cell connection group and component | |
| WO2020088027A1 (en) | Shingled photovoltaic module with dual power generation units | |
| CN203339197U (en) | Photovoltaic module | |
| CN105359371A (en) | Solar cell assembly | |
| CN203119557U (en) | Battery pack active balancing device based on cascading structure | |
| CN104835874B (en) | A kind of manufacture method of half-cell piece photovoltaic module | |
| CN209708996U (en) | A kind of ultra dense arrangement photovoltaic module of heat resistanceheat resistant spot | |
| CN108281499A (en) | A kind of photovoltaic cell component of novel circuit design | |
| CN204632773U (en) | The high-efficiency crystal silicon photovoltaic module that during a kind of longitudinally installation, power generation loss is few | |
| CN108566158A (en) | A kind of photovoltaic cell component | |
| CN104980103A (en) | Photovoltaic assembly and manufacturing method therefor | |
| CN106098830A (en) | The solaode string of a kind of homonymy interconnection and preparation method and assembly and system | |
| CN108258077A (en) | A kind of half photovoltaic cell component of full tandem type | |
| CN203218108U (en) | A photovoltaic cell unit having a plate capacitor arranged on the back surface thereof | |
| CN207896931U (en) | A kind of photovoltaic cell component | |
| CN110165009A (en) | A kind of photovoltaic module and component string | |
| CN204497250U (en) | Preventing hot spot photovoltaic module | |
| CN103094385A (en) | Photovoltaic module | |
| CN201171051Y (en) | Photovoltaic component capable of outputting higher power | |
| CN205845976U (en) | Solaode string, solar module and the system of a kind of homonymy interconnection | |
| CN209461473U (en) | Crystal silicon photovoltaic cell connection group and component | |
| CN106452349A (en) | Battery arrangement structure in double current solar photovoltaic module | |
| CN204632785U (en) | A kind of photovoltaic module | |
| CN204013383U (en) | Battery tandem power optimization photovoltaic module | |
| CN201430150Y (en) | Solar battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190528 |