CN205723568U - A kind of lamination part of solar cell using bypass diode to be connected in parallel - Google Patents

A kind of lamination part of solar cell using bypass diode to be connected in parallel Download PDF

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Publication number
CN205723568U
CN205723568U CN201620322036.6U CN201620322036U CN205723568U CN 205723568 U CN205723568 U CN 205723568U CN 201620322036 U CN201620322036 U CN 201620322036U CN 205723568 U CN205723568 U CN 205723568U
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China
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battery
bypass diode
battery strings
group
parallel
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Expired - Fee Related
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CN201620322036.6U
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Chinese (zh)
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刘湘武
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Jiangsu Infinity Photoelectric Technology Co Ltd
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Jiangsu Infinity Photoelectric Technology Co Ltd
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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

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Abstract

This utility model relates to a kind of lamination part of solar cell using bypass diode to be connected in parallel, described laminate includes the battery lamella being made up of multi-disc solar battery sheet, it is positioned at the ultra-clear glasses flaggy above described battery lamella, and it is positioned at the backsheet layer of described battery lamella shady face, it is provided with radiating fin at the back side of described backsheet layer, wherein, described battery lamella includes that the first battery strings arranged in parallel is to the tenth battery strings, described first battery strings to described tenth battery strings often go here and there comprised solar battery sheet number identical and, it is divided into 5 groups to be serially connected, to often organize in parallel with bypass diode set the most again.Described lamination part of solar cell can widen solar module, the range of application in all kinds independent solar electricity generation system.

Description

A kind of lamination part of solar cell using bypass diode to be connected in parallel
Technical field
This utility model relates to ammoniacal liquor reclaimer technical field, is specifically related to a kind of lamination part of solar cell using bypass diode to be connected in parallel.
Background technology
Solaode, is a kind of semiconductor device that sunlight is converted into electric energy.Due to its utilization is reproducible sunlight, in use will not cause environmental pollution, so when current energy shortage and environmental conservation are increasingly serious, solaode has broad application prospects.
Current the most large-scale industrial production the solaode used include crystal silicon cell, hull cell etc., wherein crystal silicon cell is owing to manufacturing technology is ripe, electricity conversion advantages of higher, occupies the market share in solar cell application field more than 80%.
Owing to crystal silicon solar cell sheet itself is broken, be easily corroded, if being directly exposed in air, its electricity conversion can through moisture, the impact of dust, acid rain etc. and decline lost efficacy so that damaging.Just can come into operation therefore, it is necessary to they to be packaged into photovoltaic module.
Common Crystalline Silicon PV Module specifically includes that laminate, is coated on the frame of laminate surrounding, and is arranged at the photovoltaic junction box of laminate shady face.Wherein, laminate specifically includes that the battery lamella being made up of multi-disc solar battery sheet, it is positioned at the cover plate of battery lamella sensitive surface, it is positioned at the backboard of battery lamella shady face, and bonding battery lamella and the EVA(ethylene-vinyl acetate copolymer of cover plate, battery lamella and backboard, ethylene-vinyl acetate copolymer) layer.
Photovoltaic module to be made can stably give customer power supply, need to be integrated as photovoltaic system, and common photovoltaic system has the several types such as grid-connected, off-network and hybrid system.Angle of solar battery system, as the one in off-network photovoltaic system, is highly suitable for small-scale household electricity, and at present, the DC voltage of angle of solar battery system typically has the several types such as 12V, 24V, 48V, 110V and 220V.
In actual application; usually occur the problem that for a kind of photovoltaic module; no matter take which kind of circuit connecting mode between this assembly; still suffer from meeting certain or there is bigger limitation time certain several angle of solar battery systems possibility to the requirement of DC voltage, i.e. photovoltaic module are applied in different types of angle of solar battery system.
Utility model content
The purpose of this utility model is to overcome defect of the prior art, design one can widen solar module, and range of application in all kinds independent solar electricity generation system uses the lamination part of solar cell that bypass diode is connected in parallel.
For achieving the above object, this utility model be the technical scheme is that
nullA kind of lamination part of solar cell using bypass diode to be connected in parallel,It is characterized in that,Described laminate includes the battery lamella being made up of multi-disc solar battery sheet、It is positioned at the ultra-clear glasses flaggy above described battery lamella、And it is positioned at the backsheet layer of described battery lamella shady face,It is provided with radiating fin at the back side of described backsheet layer,Wherein,Described battery lamella includes that the first battery strings arranged in parallel is to the tenth battery strings,It is identical and be serially connected that described first battery strings to described tenth battery strings often goes here and there comprised solar battery sheet number,Described first battery strings and the second battery series-parallel connection form first group,Described 3rd battery strings and the 4th battery series-parallel connection form second group,Described 5th battery strings forms the 3rd group with the 6th battery series-parallel connection,Described 7th battery strings forms the 4th group with the 8th battery series-parallel connection,Described 9th battery strings forms the 5th group with the tenth battery series-parallel connection,Described first group、Second group、3rd group、4th group and the 5th group is serially connected;
Described laminate shady face backsheet layer rosette is arranged below, described rosette includes the first bypass diode set, second bypass diode set, 3rd bypass diode set, 4th bypass diode set and the 5th bypass diode set, described first bypass diode set, second bypass diode set, 3rd bypass diode set, 4th bypass diode set and the 5th bypass diode set the most at least include a bypass diode, described first bypass diode set with described first group in parallel, described second bypass diode set with described second group in parallel, described 3rd bypass diode set with described 3rd group in parallel, described 4th bypass diode set with described 4th group in parallel, described 5th bypass diode set with described 5th group in parallel;
Described rosette includes box body, being provided with some conducting strips in box body, be welded with SMD bypass diode between two adjacent conducting strips, the conducting strip at two ends is fixedly connected with cable, cable stretches out outside box body, and the thermal capacity of two ends conducting strip is less than the thermal capacity of middle conducting strip.
Wherein preferably technical scheme is, it is 10 ~ 12 lamellar bodies that described first battery strings to described tenth battery strings often goes here and there the number of comprised solar battery sheet.
Preferably technical scheme also has, described first battery strings and the second battery strings are adjacent, and described 3rd battery strings and the 4th battery strings are adjacent, and described 5th battery strings and the 6th battery strings are adjacent, described 7th battery strings and the 8th battery strings are adjacent, and described 9th battery strings and the tenth battery strings are adjacent.
Advantage of the present utility model and having the beneficial effects that: the lamination part of solar cell that described employing bypass diode is connected in parallel, compared with prior art, do not change number and the arrangement mode of photovoltaic module solar battery sheet in prior art, but change the circuit connecting mode of solar battery sheet.Solar battery sheet is connected into and often goes here and there the same number of 10 string battery strings, then 10 string battery strings are divided into 5 groups two-by-two, in parallel between string and string in group, organize and connect between outer group and group, be one group of bypass diode of every Battery pack connection in series-parallel simultaneously.The output using the photovoltaic module of foregoing circuit connected mode is identical with the photovoltaic module being connected in series pure between same size in prior art and cell piece number and cell piece, its maximum working voltage is only the half of the maximum working voltage of photovoltaic module in prior art, may be directly applied in the angle of solar battery system that DC voltage is lower, and photovoltaic module of the prior art compares, the photovoltaic module in this utility model can realize a greater variety of DC voltage through a series of serial or parallel connection.Therefore, photovoltaic module provided by the utility model can be on the premise of keeping power density constant, it is adaptable to further types of angle of solar battery system, range of application is wider.
Accompanying drawing explanation
Fig. 1 is the lamination part of solar cell embodiment one that this utility model uses that bypass diode is connected in parallel, the circuit connecting mode schematic diagram of the photovoltaic module of 100 solar battery sheets provided;
Fig. 2 is the lamination part of solar cell embodiment one that this utility model uses that bypass diode is connected in parallel, the schematic diagram connected between the photovoltaic module cell piece of 100 solar battery sheets provided;
Fig. 3 is the structural representation of rosette in this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is further described.Following example are only used for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this.
nullSuch as accompanying drawing 1、Shown in 2: this utility model is a kind of lamination part of solar cell using bypass diode to be connected in parallel,Described laminate includes the battery lamella being made up of multi-disc solar battery sheet、It is positioned at the ultra-clear glasses flaggy above described battery lamella、And it is positioned at the backsheet layer of described battery lamella shady face,It is provided with radiating fin at the back side of described backsheet layer,Wherein,Described battery lamella includes that the first battery strings arranged in parallel is to the tenth battery strings,It is identical and be serially connected that described first battery strings to described tenth battery strings often goes here and there comprised solar battery sheet number,Described first battery strings and the second battery series-parallel connection form first group,Described 3rd battery strings and the 4th battery series-parallel connection form second group,Described 5th battery strings forms the 3rd group with the 6th battery series-parallel connection,Described 7th battery strings forms the 4th group with the 8th battery series-parallel connection,Described 9th battery strings forms the 5th group with the tenth battery series-parallel connection,Described first group、Second group、3rd group、4th group and the 5th group is serially connected;
Described laminate shady face backsheet layer rosette is arranged below, described rosette includes the first bypass diode set, second bypass diode set, 3rd bypass diode set, 4th bypass diode set and the 5th bypass diode set, described first bypass diode set, second bypass diode set, 3rd bypass diode set, 4th bypass diode set and the 5th bypass diode set the most at least include a bypass diode, described first bypass diode set with described first group in parallel, described second bypass diode set with described second group in parallel, described 3rd bypass diode set with described 3rd group in parallel, described 4th bypass diode set with described 4th group in parallel, described 5th bypass diode set with described 5th group in parallel;
Described rosette includes box body, being provided with some conducting strips 301 in box body, be welded with SMD bypass diode 401 between two adjacent conducting strips, the conducting strip 301 at two ends is fixedly connected with cable, cable stretches out outside box body, and the thermal capacity of two ends conducting strip is less than the thermal capacity of middle conducting strip.
Utilize the temperature level that conducting strip is born to determine the thermal capacity size of conducting strip in this utility model, it is positioned at the conducting strip at two ends owing to being closely attached cable, cable can play the effect of heat conduction, accumulation of heat, be equivalent to provide a bigger external thermal capacity, therefore its thermal capacity of the conducting strip at two ends can be more relatively small.Applicant further investigation revealed that, chip diode, has the haptic element of body and the extraction including chip, and wherein body is bigger with the contact area of conducting strip, and therefore its heat is delivered to conducting strip by body more.In the conducting strip of two interpositions, being all a body being terminated with a diode, the other end is connected to the haptic element of another diode;The conducting strip being wherein connected with two ends conducting strip with the haptic element of diode, the conducting strip thermal capacity connected due to the body of this diode is less, therefore has higher temperature, so the conducting strip that its haptic element end is connected, needs bigger thermal capacity comparatively speaking.Similarly, in the conducting strip of two end positions, the conducting strip being connected with middle conducting strip with the haptic element of diode, because its heat received is less, therefore only need less thermal capacity.Thermal capacity about each conducting strip of the present utility model designs, and has fully taken into account the heat condition of each diode, it is possible to balancedly accumulate heat, thus dispel the heat constantly when rosette does not works, and reaches optimal cost performance between control temperature rise and control cost.
This utility model preferred embodiment is, it is 10 ~ 12 lamellar bodies that described first battery strings to described tenth battery strings often goes here and there the number of comprised solar battery sheet.
This utility model preferred embodiment also has, described first battery strings and the second battery strings are adjacent, described 3rd battery strings and the 4th battery strings are adjacent, described 5th battery strings and the 6th battery strings are adjacent, described 7th battery strings and the 8th battery strings are adjacent, and described 9th battery strings and the tenth battery strings are adjacent.
The lamination part of solar cell that employing bypass diode provided by the utility model is connected in parallel, does not change number and the arrangement mode of photovoltaic module solar battery sheet in prior art, but changes the circuit connecting mode of solar battery sheet.Solar battery sheet is connected into and often goes here and there the same number of 10 string battery strings, then 10 string battery strings are divided into 5 groups two-by-two, in parallel between string and string in group, organize and connect between outer group and group, be one group of bypass diode of every Battery pack connection in series-parallel simultaneously.
Solar battery sheet can also be connected in the specific implementation often go here and there the same number of 6 string battery strings, then 6 string battery strings are divided into 3 groups two-by-two, in group, parallel connection between string and string, organizes and connects between outer group and group, be one group of bypass diode of every Battery pack connection in series-parallel simultaneously.The output using the photovoltaic module of foregoing circuit connected mode is identical with the photovoltaic module being connected in series pure between same size in prior art and cell piece number and cell piece, its maximum working voltage is only the half of the maximum working voltage of photovoltaic module in prior art, may be directly applied in the angle of solar battery system that DC voltage is lower, and compared with photovoltaic module of the prior art, the photovoltaic module in this utility model can realize a greater variety of DC voltage through a series of serial or parallel connection.Therefore, photovoltaic module provided by the utility model can be on the premise of keeping power density (i.e. unit are power) constant, it is adaptable to further types of angle of solar battery system, range of application is wider.
It is above core concept of the present utility model, understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in detail.
Elaborate a lot of detail in the following description so that fully understanding this utility model, but this utility model can also use other to be different from alternate manner described here to be implemented, those skilled in the art can do similar popularization in the case of this utility model intension, and therefore this utility model is not limited by following public specific embodiment.
Secondly, this utility model combines schematic diagram and is described in detail, when describing this utility model embodiment in detail; for ease of explanation; representing that the profile of apparatus structure can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of this utility model protection at this.Additionally, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.
Embodiment one
Providing the photovoltaic module of a kind of 60 solar battery sheets, i.e. the first battery strings described in this photovoltaic module to described 6th battery strings in the present embodiment and often going here and there the number of comprised solar battery sheet is 10.As shown in Figure 1, first battery strings 101 and the second battery strings 102 are in parallel, owing to the first battery strings 101 is composed in series by 10 cell pieces with the second battery strings 102, the maximum working voltage assuming a piece of cell piece is U, then the voltage at the branch road two ends that the first battery strings 101 and the second battery strings 102 parallel connection are formed is 10U;In like manner, the voltage at the branch road two ends that the 3rd battery strings 103 and the 4th battery strings 104 parallel connection are formed is 10U, and the voltage at the branch road two ends that the 5th battery strings 105 and the 6th battery strings 106 parallel connection are formed is 10U.Above 6 string battery strings, 3 branch roads formed in parallel two-by-two are serially connected, and the maximum working voltage of the most whole photovoltaic module (i.e. between port 11 and 12) is 30U.
And cell piece is according to the circuit connecting mode of series connection pure in prior art, then in prior art, the maximum working voltage of the photovoltaic module of 60 cell pieces is all cell piece both end voltage sums, it is 60U, visible, the half of the maximum working voltage of the photovoltaic module of 60 cell pieces during the maximum working voltage of the photovoltaic module of 60 cell pieces is prior art in the present embodiment.
If the size that solar battery sheet is conventional is 156mm × 156mm, short circuit current is 8 to 9A, maximum working voltage is the solar battery sheet of 0.5V, then U=0.5V, the maximum working voltage then using the photovoltaic module of 60 cell pieces of foregoing circuit connected mode is 15V, and in prior art, the maximum working voltage of the photovoltaic module of 60 cell pieces is 30V.
Additionally, the branch road two ends that first battery strings 101 and the second battery strings 102 parallel connection are formed are parallel with the first bypass diode set 107, the branch road two ends that 3rd battery strings 103 and the 4th battery strings 104 parallel connection are formed are parallel with the second bypass diode set 108, and the branch road two ends that the 5th battery strings 105 and the 6th battery strings 106 parallel connection are formed are parallel with the 3rd bypass diode set 109.When certain a piece of or a few cell piece of photovoltaic module is blocked generation hot spot effect, will turn on the bypass diode of the branch circuit parallel connection at the cell piece place that is blocked, the branch road at cell piece place of making to be blocked quits work, and causes photovoltaic module hot-spot and the damage that occurs to avoid the cell piece being blocked to produce heat as load consumption electric energy.The quantity of the bypass diode each comprised for first bypass diode set the 107, second bypass diode set 108 and the 3rd bypass diode set 109 that prevent hot spot effect should be no less than one.
The battery lamella connected into according to foregoing circuit connected mode is as shown in Figure 2, cell piece arrangement with the photovoltaic module of in prior art 60 cell pieces is identical, 60 solar battery sheet arrangements are 6 row 10 row, 10 cell pieces of each column are serially connected composition 6 string battery strings, respectively first battery strings the 201, second battery strings the 202, the 3rd battery strings the 203, the 4th battery strings the 204, the 5th battery strings the 205, the 6th battery strings 206.First battery strings 201 and the second battery strings 202 compose in parallel first group 21, and the 3rd battery strings 203 and the 4th battery strings 204 compose in parallel second group 22, and the 5th battery strings 205 and the 6th battery strings 206 compose in parallel the 3rd group 23.
The positive pole of first group 21 is introduced the A binding post (not shown) in rosette by busbar aa ', the negative pole of first group 21 is introduced the B binding post (not shown) in rosette by busbar bb ', is provided with the first bypass diode set including at least one bypass diode between A binding post and B binding post;The positive pole of second group 22 is introduced the B binding post in rosette by busbar bb ', the negative pole of second group 22 is introduced the C binding post (not shown) in rosette by busbar cc ', is provided with the second bypass diode set including at least one bypass diode between B binding post and C binding post;The positive pole of the 3rd group 23 is introduced the C binding post in rosette by busbar cc ', the negative pole of the 3rd group 23 is introduced the D binding post (not shown) in rosette by busbar dd ', is provided with the 3rd bypass diode set including at least one bypass diode between C binding post and D binding post.A binding post is as the cathode output end of photovoltaic module, and D binding post is as the cathode output end output precision electric current of photovoltaic module.
Additionally, busbar aa ' and the overlapping place 1 of cc ', busbar cc ' and the overlapping place 2 of bb ', the overlapping place 3 and 4 of busbar dd ' and bb ', and the contact portion of each busbar and solar battery sheet, it is both needed to isolating bar (such as EPE: the insulant being made up of EVA+PET+EVA trilaminate material, wherein PET is the abbreviation of polyethylene terephthalate) good with electrical insulating property respectively keep apart to prevent short circuit current.
Busbar in order to make circuit connect simplifies, avoid the increase of unnecessary workload, the present embodiment preferably can make described first battery strings 201 and the second battery strings 202 adjacent, described 3rd battery strings 203 and the 4th battery strings 204 are adjacent, described 5th battery strings 205 and the 6th battery strings 206 are adjacent, it is more preferred to make the first battery strings 201 be arranged in order as shown in FIG. to the 6th battery strings 206.
It should be noted that the present embodiment only illustrates as a example by the arrangement mode of above-mentioned first battery strings 201 to the 6th battery strings 206, the first battery strings 201 is only its title to the 6th battery strings 206, does not represent the ordering of reality.
If in order to build the low pressure angle of solar battery system that DC voltage is 12V, in the following way: keep the circuit connecting mode of pure series connection and the size constancy of the photovoltaic module of 60 cell pieces, reduce cell piece number in photovoltaic module, the maximum working voltage making single photovoltaic module reduces, it is achieved the DC voltage of 12V.But, this mode reduces the power output of the photovoltaic module of single former 60 cell pieces, i.e. reduces the power of its unit are, makes the cost of electricity-generating of photovoltaic system unit are raise.
In order to the power density keeping assembly is constant as far as possible, can reduce while cell piece number, reduce the size of photovoltaic module, i.e. make a kind of photovoltaic module, its cell piece number is less than 60 and is smaller in size than the size of photovoltaic module of former 60 cell pieces.Although this photovoltaic module remains to reduce the maximum working voltage of single component, and the photovoltaic module of the more above-mentioned simple minimizing cell piece number of its power density is high, but owing in photovoltaic module, sheet spacing between cell piece is maintained at 2mm to 3mm, string spacing between battery strings is at 3mm to 4.5mm, cell piece is also to have standard to specify (in order to ensure electrical security from the distance of side edge thereof, Edge Distance cannot be below the minima of regulation), even if therefore reduce cell piece number to reduce size of components and make the photovoltaic module of relatively small dimension simultaneously, the photovoltaic module of more former 60 cell pieces of its power density still decreases.And use undersized photovoltaic module inevitably to make cost raise, in simple terms, if by 250W photovoltaic module, making two photovoltaic modulies of 125W, various materials used necessarily photovoltaic module than a 250W is many, and corresponding human cost also can raise.
Photovoltaic module provided by the utility model is relative to the photovoltaic module of in prior art 60 cell pieces, its size and the cell piece number and the specification that are used are the most constant, changed is only the circuit connecting mode between cell piece, so the total output of photovoltaic module in this utility model is constant, the i.e. power density of unit are is constant, and cost also will not increase.The change of cell piece connected mode makes the maximum working voltage of photovoltaic module of the present utility model become half of the prior art: 15V, coordinate photovoltaic controller, photovoltaic module in this utility model can be on the premise of power density and cost be constant, directly apply to the angle of solar battery system that DC voltage is 12V, widen the range of application of the photovoltaic module of 60 cell pieces.
Embodiment two
Based on core concept of the present utility model, present embodiments providing the photovoltaic module of a kind of 72 solar battery sheets, i.e. the first battery strings described in this photovoltaic module to described 6th battery strings and often going here and there the number of comprised solar battery sheet is 12.Connected mode between its cell piece is identical with embodiment one, and still for the connection connected again in parallel of first connecting again, different is only the number of the solar battery sheet that the first battery strings to described 6th battery strings is often gone here and there.
The maximum working voltage taking the photovoltaic module of 72 cell pieces of pure series system in prior art is about 36V, what kind of electrical connection all cannot realize the voltage of 48V through, it is to say, the photovoltaic module of 72 cell pieces cannot be applied to the angle of solar battery system that DC voltage is 48V in prior art.
The photovoltaic module that the present embodiment is provided, its size is all identical with the photovoltaic module of in prior art 72 cell pieces with the number of cell piece, changed for the connected mode between each solar battery sheet, the present embodiment does not use traditional pure be connected in series, but use the circuit connecting mode identical with embodiment one, so that the maximum working voltage of the photovoltaic module in the present embodiment reduces to about 18V.The voltage that is connected in series together by such three photovoltaic modulies is about 54V, coordinate suitable photovoltaic controller, the photovoltaic system that DC side is 48V can be directly applied for, so that the range of application of the photovoltaic module of 72 cell pieces is wider on the premise of keeping power density and not increasing cost.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; on the premise of without departing from this utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (3)

  1. null1. the lamination part of solar cell using bypass diode to be connected in parallel,It is characterized in that,Described laminate includes the battery lamella being made up of multi-disc solar battery sheet、It is positioned at the ultra-clear glasses flaggy above described battery lamella、And it is positioned at the backsheet layer of described battery lamella shady face,It is provided with radiating fin at the back side of described backsheet layer,Wherein,Described battery lamella includes that the first battery strings arranged in parallel is to the tenth battery strings,It is identical and be serially connected that described first battery strings to described tenth battery strings often goes here and there comprised solar battery sheet number,Described first battery strings and the second battery series-parallel connection form first group,Described 3rd battery strings and the 4th battery series-parallel connection form second group,Described 5th battery strings forms the 3rd group with the 6th battery series-parallel connection,Described 7th battery strings forms the 4th group with the 8th battery series-parallel connection,Described 9th battery strings forms the 5th group with the tenth battery series-parallel connection,Described first group、Second group、3rd group、4th group and the 5th group is serially connected;
    Described laminate shady face backsheet layer rosette is arranged below, described rosette includes the first bypass diode set, second bypass diode set, 3rd bypass diode set, 4th bypass diode set and the 5th bypass diode set, described first bypass diode set, second bypass diode set, 3rd bypass diode set, 4th bypass diode set and the 5th bypass diode set the most at least include a bypass diode, described first bypass diode set with described first group in parallel, described second bypass diode set with described second group in parallel, described 3rd bypass diode set with described 3rd group in parallel, described 4th bypass diode set with described 4th group in parallel, described 5th bypass diode set with described 5th group in parallel;
    Described rosette includes box body, being provided with some conducting strips in box body, be welded with SMD bypass diode between two adjacent conducting strips, the conducting strip at two ends is fixedly connected with cable, cable stretches out outside box body, and the thermal capacity of two ends conducting strip is less than the thermal capacity of middle conducting strip.
  2. 2. the as claimed in claim 1 lamination part of solar cell using bypass diode to be connected in parallel, it is characterised in that it is 10 ~ 12 lamellar bodies that described first battery strings to described tenth battery strings often goes here and there the number of comprised solar battery sheet.
  3. 3. the lamination part of solar cell using bypass diode to be connected in parallel as claimed in claim 1, it is characterized in that, described first battery strings and the second battery strings are adjacent, described 3rd battery strings and the 4th battery strings are adjacent, described 5th battery strings and the 6th battery strings are adjacent, described 7th battery strings and the 8th battery strings are adjacent, and described 9th battery strings and the tenth battery strings are adjacent.
CN201620322036.6U 2016-04-18 2016-04-18 A kind of lamination part of solar cell using bypass diode to be connected in parallel Expired - Fee Related CN205723568U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107623049A (en) * 2017-09-14 2018-01-23 苏州携创新能源科技有限公司 A kind of ultra dense arrangement photovoltaic module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107623049A (en) * 2017-09-14 2018-01-23 苏州携创新能源科技有限公司 A kind of ultra dense arrangement photovoltaic module

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