CN207834316U - A kind of photovoltaic cell component of novel circuit design - Google Patents

A kind of photovoltaic cell component of novel circuit design Download PDF

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Publication number
CN207834316U
CN207834316U CN201820323990.6U CN201820323990U CN207834316U CN 207834316 U CN207834316 U CN 207834316U CN 201820323990 U CN201820323990 U CN 201820323990U CN 207834316 U CN207834316 U CN 207834316U
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CN
China
Prior art keywords
battery
battery strings
parallel
component
bypass diode
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Withdrawn - After Issue
Application number
CN201820323990.6U
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Chinese (zh)
Inventor
孙权
徐建美
张舒
季志超
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Trina Solar Co Ltd
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Trina Solar Co Ltd
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Priority to CN201820323990.6U priority Critical patent/CN207834316U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model discloses a kind of photovoltaic cell components of novel circuit design, including photovoltaic battery matrix, the photovoltaic battery matrix includes two battery string locations in parallel, each battery string location includes the bypass diode in parallel with battery strings group one-to-one correspondence respectively of m concatenated battery strings groups and m, the integer that each battery strings group includes two parallel arrangements and concatenated battery strings, wherein m are >=1.The utility model is applicable to the battery component of half cell piece component or arbitrary dimension; it can also be used for conventional full wafer cell piece component; so that each battery strings access a bypass diode in parallel; for traditional photovoltaic module; can effectively cell piece be protected when component is blocked with hot spot; component output power and generated energy are improved, while reducing component stack process, improves component production efficiency.

Description

A kind of photovoltaic cell component of novel circuit design
Technical field
The utility model belongs to photovoltaic cell technical field, and in particular to a kind of photovoltaic cell group of novel circuit design Part.
Background technology
In the course of work of solar cell module, if there is shadow occlusion some or certain solar cells, meeting Cause the output with the concatenated other batteries of shade battery that can all consume on the battery, this energy expenditure can lead to battery PN The partial breakdown of knot, and cause hot-spot, here it is hot spot effects.Solar cell meets with due to hot spot effect in order to prevent It being damaged, common solution is to install bypass diode additional on the basis of primary circuit, when light is not blocked, each two pole Pipe is in reverse bias, and each battery is producing electricl energy.It can stop producing electricl energy when a battery is blocked, become a height Valued resistor, while other batteries promote its reverse bias, lead to the diode current flow for connecting battery both ends, flow through and be blocked originally The electric current of battery shunted by diode.
In the prior art, solar energy half battery photovoltaic module includes multiple battery strings groups, and each battery strings group includes two A parallel arrangement and concatenated battery strings, the general connection type that a diode is shared using two battery strings group parallel connections, example In component most of partial occlusion occurs for existing photovoltaic module as shown in Figure 1, only 3 diodes, such circuit When, component output power can be caused, which to be exported than the component power of conventional full wafer cell piece, to be reduced, and practical application band is thus given Carry out larger hidden danger, and its terminal box, using 3 Split type connecting boxes with diode, is producing as general components Lamination process needs artificial bending busbar connecting terminal, manual alignment to be inserted into terminal box busbar hole when busbar is drawn Human weld, this structure terminal box encapsulation wiring technique are difficult that exploitation is suitble to certainly to artificial bending fitting bus terminal again again after gap Dynamicization or semi-automatic work machine, be in photovoltaic component encapsulating technique a small number of processes that can not yet realize automated job it One.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of photovoltaic cell component of novel circuit design, improves Photovoltaic cell component power output rate.
The technical solution of the utility model is:A kind of photovoltaic cell component of novel circuit design, including photovoltaic cell side Battle array, the photovoltaic battery matrix include two battery string locations in parallel, and each battery string location includes m concatenated battery strings Group and m the bypass diode in parallel with battery strings group one-to-ones correspondence, each battery strings group include two and arrange parallel respectively And the integer that concatenated battery strings, wherein m are >=1.
The utility model is a kind of photovoltaic cell component of novel circuit design, first connects battery strings group to obtain battery strings Unit, then two battery string locations are in parallel, and each battery strings group corresponds parallel connection one respectively in the utility model A bypass diode, for the existing connection type for sharing a bypass diode using two battery strings group parallel connections, The utility model can effectively protect cell piece when component is blocked with hot spot, improve component output power and generated energy.
In the utility model there are many connection types of bypass diode, preferably, further include integrated circuit board, it is described Integrated circuit board is located between two battery string locations, the corresponding position of the battery string location of the integrated circuit board and both sides It is provided with the battery strings pad with the interconnecting strip welding cooperation in battery strings, each battery strings group corresponds a bypass in parallel Diode, anode and cathode two battery strings pads connection corresponding with battery strings group respectively of the bypass diode, with Keep bypass diode in parallel with battery strings group, the both ends of the integrated circuit board are respectively arranged with the anode with photovoltaic battery matrix The positive electrode pad that lead-out wire is connected and the negative electrode pad being connected with the negative outside wire of photovoltaic battery matrix.
The utility model can be connect by integrated circuit board with each battery strings group, in order to be connect to each battery strings group Enter bypass diode in parallel, when bypass diode accesses so that anode and two corresponding with battery strings group respectively, cathode Battery strings pad connects, you can so that bypass diode is in parallel with each battery strings group.The utility model can make each electricity Pond string group access bypass diode in parallel, you can convenient for increasing the quantity of bypass diode, improve battery efficiency, and operate It is convenient, component stack process is reduced, component production efficiency is improved.Integrated circuit board can be flexible or hard in the utility model Property.
Preferably, the m is 3.
Preferably, further including multiple terminal boxes.
Preferably, the terminal box is m, there are two bypass diode, the terminal boxes for setting in each terminal box Two interior bypass diodes correspond to concatenated two battery strings groups with two battery string locations and are connected in parallel respectively, the side Corresponding with the battery strings group two battery strings pads connection respectively of the anode and cathode of road diode so that bypass diode and Battery strings group is in parallel.Bypass diode can also be set in terminal box in the utility model, wherein each terminal box setting two A bypass diode, two bypass diodes, two battery strings groups corresponding with position in two battery string locations are connected in parallel, Make one battery strings group of each bypass diode management and control.
In the utility model there are many types of cell piece, using existing a plurality of types of cell pieces, preferably, The battery strings include multiple cell pieces being connected in series with, and the cell piece is slice cell piece.
Preferably, the slice cell piece is 1/2 slice cell piece or 1/4 slice cell piece.In the utility model It may be other kinds of slice cell piece to be sliced cell piece.
Compared with prior art, the beneficial effects of the utility model are embodied in:
The utility model is applicable to the battery component of half cell piece component or arbitrary dimension, it can also be used to conventional whole Piece cell piece component, the utility model makes each battery strings group access a bypass diode in parallel, relative to tradition Photovoltaic module for, can effectively protect cell piece when component is blocked with hot spot, improve component output power and hair Electricity, while production technology is greatly simplified, it is easy to operate, component stack process is reduced, component production efficiency is improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of the photovoltaic cell component of the prior art.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is a kind of structural schematic diagram of embodiment of parallel connection access bypass diode in the utility model Fig. 2.
Fig. 4 is the structural schematic diagram of the utility model terminal box arrangement.
Specific implementation mode
As shown in Figures 2 and 3, the utility model includes photovoltaic battery matrix, and photovoltaic battery matrix includes two in parallel Battery string location 7, each battery string location 7 include that m concatenated battery strings groups 6 and m are a pair of with battery strings group 6 one respectively Bypass diode 2 in parallel is answered, each battery strings group 6 includes two parallel arrangements and concatenated battery strings, wherein m are >=1 Integer.
In the utility model there are many set-up modes of bypass diode, the utility model further includes integrated circuit board 1, collection Between being located at two battery string locations 7 at circuit board 1, integrated circuit board 1 and the corresponding position of the battery string location 7 of both sides are set It is equipped with the battery strings pad 11 with the interconnecting strip welding cooperation in battery strings, each battery strings group 6 corresponds a side in parallel Road diode 2, anode and cathode two battery strings pads 11 connection corresponding with battery strings group 6 respectively of bypass diode 2, So that bypass diode 2 is in parallel with battery strings group 6, the both ends of integrated circuit board 1 are respectively arranged with photovoltaic battery matrix just The positive electrode pad 12 that pole lead-out wire is connected and the negative electrode pad being connected with the negative outside wire of photovoltaic battery matrix 13。
Battery strings include multiple cell pieces being connected in series in the utility model, there is the type of cell piece in the utility model A variety of, using existing a plurality of types of cell pieces, cell piece is slice cell piece, such as slice cell piece is 1/2 slice Cell piece or 1/4 slice cell piece.Slice cell piece in the utility model may be other kinds of slice cell piece.
Bypass diode can be integrated on integrated circuit board by the utility model, and the utility model passes through integrated circuit board 1 connect with each battery strings group 6, and in order to access bypass diode 2 in parallel to each battery strings group 6, bypass diode 2 connects It is fashionable so that anode and cathode two battery strings pads 11 connection corresponding with battery strings group 6 respectively, you can so that bypass two Pole pipe 2 is in parallel with each battery strings group 6.The each battery strings group 6 that the utility model can make accesses bypass diode in parallel 2, you can convenient for increasing the quantity of bypass diode 2, improve battery efficiency, and easy to operate, reduce component stack process, carry High component production efficiency.Integrated circuit board 1 can be flexible or hardness in the utility model.Integrated circuit in the utility model Plate 11 is encapsulated among two layers of encapsulating material such as EVA, POE of component, and such application can be used for Normal back plate component, also may be used For solar double-glass assemblies.
As shown in figure 4, the utility model further includes multiple terminal boxes 3.Such as terminal box 3 can be m, each terminal box Setting is there are two bypass diode 2 in 3, two bypass diodes 2 in terminal box 3 respectively with it is right in two battery string locations 7 Concatenated two battery strings groups 6 are answered to be connected in parallel, the anode and cathode of bypass diode 2 are corresponding with battery strings group 6 respectively Two battery strings pads 11 connect, so that bypass diode 2 is in parallel with battery strings group 6.Bypass diode 2 is set in the utility model It is placed in terminal box 3, wherein two bypass diodes 2, two bypass diodes 2 and two battery strings are arranged in each terminal box 3 The corresponding two battery strings groups 6 in position are connected in parallel in unit 7 so that each bypass diode 2 management and control, one battery strings group 6. Multiple battery strings groups 6 can be set, such as m is 3, i.e. each battery string location 7 in the utility model in each battery string location 7 It is interior that 3 battery strings groups 6 can be set, the anode and cathode of photovoltaic battery matrix can be set to the both ends of integrated circuit board, Two terminal boxes positioned at integrated circuit board both ends are respectively as positive terminal box and negative junction box.

Claims (6)

1. a kind of photovoltaic cell component of novel circuit design, including photovoltaic battery matrix, which is characterized in that the photovoltaic cell Square formation includes two battery string locations in parallel, each battery string location include m concatenated battery strings groups and m respectively with Battery strings group corresponds bypass diode in parallel, and each battery strings group includes two parallel arrangements and concatenated battery strings, The integer that wherein m is >=1.
2. the photovoltaic cell component of novel circuit design as described in claim 1, which is characterized in that further include multiple wiring Box.
3. the photovoltaic cell component of novel circuit design as claimed in claim 2, which is characterized in that the terminal box is m, Setting is there are two bypass diode in each terminal box, two bypass diodes in the terminal box respectively with two battery strings Concatenated two battery strings groups are corresponded in unit to be connected in parallel, the bypass diode anode and cathode respectively with battery strings group In the connection of corresponding two battery strings pads so that bypass diode is in parallel with battery strings group.
4. the photovoltaic cell component of novel circuit design as claimed in claim 3, which is characterized in that the m is 3.
5. the photovoltaic cell component of novel circuit design as claimed in claim 4, which is characterized in that the battery strings include more A cell piece being connected in series with, the cell piece are slice cell piece.
6. the photovoltaic cell component of novel circuit design as claimed in claim 5, which is characterized in that the slice cell piece is 1/2 slice cell piece or 1/4 slice cell piece.
CN201820323990.6U 2018-03-09 2018-03-09 A kind of photovoltaic cell component of novel circuit design Withdrawn - After Issue CN207834316U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820323990.6U CN207834316U (en) 2018-03-09 2018-03-09 A kind of photovoltaic cell component of novel circuit design

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820323990.6U CN207834316U (en) 2018-03-09 2018-03-09 A kind of photovoltaic cell component of novel circuit design

Publications (1)

Publication Number Publication Date
CN207834316U true CN207834316U (en) 2018-09-07

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108281499A (en) * 2018-03-09 2018-07-13 天合光能股份有限公司 A kind of photovoltaic cell component of novel circuit design

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108281499A (en) * 2018-03-09 2018-07-13 天合光能股份有限公司 A kind of photovoltaic cell component of novel circuit design
CN108281499B (en) * 2018-03-09 2023-10-13 天合光能股份有限公司 Novel photovoltaic cell assembly with circuit design

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