CN208819898U - A kind of photovoltaic cell component structure - Google Patents
A kind of photovoltaic cell component structure Download PDFInfo
- Publication number
- CN208819898U CN208819898U CN201821036806.6U CN201821036806U CN208819898U CN 208819898 U CN208819898 U CN 208819898U CN 201821036806 U CN201821036806 U CN 201821036806U CN 208819898 U CN208819898 U CN 208819898U
- Authority
- CN
- China
- Prior art keywords
- photovoltaic cell
- string
- cell
- convergent belt
- photovoltaic
- 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.)
- Active
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
Abstract
The utility model discloses a kind of photovoltaic cell component structures, comprising: photovoltaic cell, mutual latticing, convergent belt, the photovoltaic cell includes symmetrical the first photovoltaic cell and the second photovoltaic cell, first photovoltaic cell and the second photovoltaic cell include N string photovoltaic cell, every string photovoltaic cell includes M photovoltaic cell, by interconnection bar shaped at cascaded structure between M photovoltaic cell, parallel-connection structure is formed by intermediate convergent belt between first photovoltaic cell and the second photovoltaic cell, the convergent belt for passing through both ends respectively between string and string of first photovoltaic cell and the second photovoltaic cell forms cascaded structure, wherein, the polarity of adjacent photovoltaic cell piece drawn between string and string is opposite.The reversed bias voltage at cell piece both ends is excessively high when the utility model avoids partial occlusion, so that it is excessively high to reduce hot spot temperature, while when hot spot effect being avoided to generate, cell piece reversed bias voltage is excessively high to cause cell piece reverse breakdown to damage.
Description
Technical field
The utility model relates to solar components field more particularly to a kind of photovoltaic cell component structures.
Background technique
Solar battery is as green energy resource, because luminous energy can be converted directly into electric energy by it, and increasingly by people
Concern.Photovoltaic module is with outer enclosure and internal connection, and the minimum that direct current electricity output can be provided separately is indivisible
Solar battery group, which attaches together, sets.Often output voltage is too low or electric current is improper for single solar battery, and it is subjected to machine
The ability of tool impact is weaker, therefore is needed in actual use by single battery series, parallel, and draws using tight encapsulation
Electrode forms the photovoltaic module that can be used as independent current source.
Its structure of the photovoltaic module of the prior art is as shown in Figure 1, photovoltaic cell component structure includes: multiple not cut completely
Cell piece 11, series winding adjacent cell piece 11 and connect the mutual latticing 12 of cell piece and convergent belt 13, series-connected battery string and as group
The convergent belt 13 of part exit.Because the photovoltaic cell component structure is using battery strings unilateral side confluence mode, a bypass diode
14 only protect one-sided parallel in the cell piece at bypass diode the two poles of the earth, if to increase cell piece quantity in component, each bypass
The corresponding single string of batteries piece quantity of diode just increases therewith, and when hot spot effect generates, the highest at corresponding cell piece both ends is anti-
The voltage that bias-voltage is equal to remaining cell piece in this battery strings adds bypass diode conducting voltage, so cell piece quantity in going here and there
Increase, reversed bias voltage is higher.Therefore, hot spot temperature is also higher when hot spot effect generates, and proposes to the quantity of cell piece in going here and there
Limitation.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of photovoltaic cell component structure, which reduce single string of batteries strings
Cell piece quantity, the defect of a string of batteries can only be protected by solving each bypass diode so that photovoltaic module use it is same
When the cell piece of quantity, the reversed bias voltage at battery both ends only has the one of conventional photovoltaic battery module structure when hot spot effect generates
Half, hot spot temperature is greatly lowered.
To achieve the above object, the utility model uses following design scheme:
A kind of photovoltaic cell component structure comprising: photovoltaic cell, mutual latticing, convergent belt, the photovoltaic cell packet
Include symmetrical the first photovoltaic cell and the second photovoltaic cell, first photovoltaic cell and the second photovoltaic cell
Including N string photovoltaic cell, every string photovoltaic cell includes M photovoltaic cell, is formed between M photovoltaic cell by interconnecting item
Cascaded structure forms parallel-connection structure by intermediate convergent belt between the first photovoltaic cell and the second photovoltaic cell, and first
The convergent belt for passing through both ends respectively between string and string of photovoltaic cell and the second photovoltaic cell forms cascaded structure, wherein
The polarity of adjacent photovoltaic cell piece drawn between string and string is opposite.
Preferably, the first photovoltaic of protection is equipped on the convergent belt among the first photovoltaic cell and the second photovoltaic cell
The bypass diode of cell piece and the second photovoltaic cell.
Preferably, the N in the N string photovoltaic cell is even number.
Preferably, the photovoltaic cell strings of first photovoltaic cell head and the tail, two string respectively with the second photovoltaic cell head and the tail
The photovoltaic cell string of two strings is correspondingly connected on intermediate convergent belt, the photovoltaic cell of first photovoltaic cell middle section
The string tie point between any two tie point phase with the photovoltaic cell string of the second photovoltaic cell middle section between any two respectively
It is connected on intermediate convergent belt, the first photovoltaic cell of protection and the second photovoltaic cell is equipped between convergent belt tie point
Bypass diode.
Preferably, the rated current of the bypass diode is greater than 25A.
Preferably, the M photovoltaic cell is complete uncut cell piece, and M photovoltaic cell is 2~10 photovoltaic electrics
Pond piece.
Preferably, the safe current capacity of the convergent belt among the first photovoltaic cell and the second photovoltaic cell is conventional
Twice of modular construction short circuit current.
Preferably, width 6mm~12mm of the convergent belt, thickness 0.3mm~0.5mm.
The utility model uses the above design scheme, and component cascaded structure is divided into two by the utility model, is divided into first
Photovoltaic cell and the second photovoltaic cell, while cell piece is not cut, retain completed cell piece, no cutting loss.
First photovoltaic cell and the second photovoltaic cell share intermediate bypass diode, and two sides can independent operating work.Battery strings
It being divided into two so that the number of batteries in single string halves, battery strings total voltage halves, when hot spot effect occurs, cell piece both ends
Reversed bias voltage is almost original half, so reverse breakdown risk substantially reduces, hot spot temperature is substantially reduced.Component output voltage
Halve, under the premise of system design voltage is inconvenient, the photovoltaic plant of same square matrix can install the photovoltaic module of double amount.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawing:
Fig. 1 is the arrangement schematic diagram of photovoltaic cell component structure in existing photovoltaic cell component structure；
Fig. 2 is the utility model photovoltaic cell component structure front schematic view；
Fig. 3 is the utility model photovoltaic cell component structure electrical schematic diagram.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model discloses a kind of photovoltaic cell component structures comprising: photovoltaic cell, mutual latticing, convergent belt,
The photovoltaic cell includes symmetrical the first photovoltaic cell and the second photovoltaic cell, first photovoltaic cell
Include N string photovoltaic cell with the second photovoltaic cell, every string photovoltaic cell includes M photovoltaic cell, M photovoltaic cell it
Between by interconnection bar shaped at cascaded structure, pass through intermediate convergent belt shape between the first photovoltaic cell and the second photovoltaic cell
At parallel-connection structure, the first photovoltaic cell and the second photovoltaic cell are formed by the convergent belt at both ends respectively between string and string
Cascaded structure, wherein the polarity of adjacent photovoltaic cell piece drawn between string and string is opposite.
As shown in Figure 2 and Figure 3, photovoltaic cell component structure is by taking 72 photovoltaic cells 26 as an example in the present embodiment, i.e. N and M
Access values 6, the first photovoltaic cell A and the second photovoltaic cell B respectively include 6 string photovoltaic cells, every string photovoltaic cell
Piece includes 6 photovoltaic cells 26, passes through mutual latticing 21 formation cascaded structure between photovoltaic cell.First photovoltaic cell A
Totally 36 cell pieces, the second photovoltaic cell B totally 36 cell pieces, the first photovoltaic cell A and the second photovoltaic cell B two
Part forms parallel-connection structure by intermediate convergent belt 22, and 6 string battery strings of every side are arranged side by side, the pole of adjacent cell string head and the tail extraction
Property on the contrary, head and the tail respectively by each end pass through convergent belt 23,24 welding series connection.Portion in assembly, the first photovoltaic cell A and
The battery of second photovoltaic cell B draws component electrode afterwards in series and parallel, to connect terminal box, and shares 3 bypass diodes
25, each bypass diode 25 protects the battery strings of the first photovoltaic cell A and the second photovoltaic cell B simultaneously；
Specifically, the battery strings A1 and B1 abutting end in photovoltaic cell component structure is connected on same root convergent belt and draws
Electrode, A2 and A3, B2, B3 abutting end are connected to extraction electrode on same root convergent belt, and A4 is connected to A5, B4, B5 abutting end
Extraction electrode on same root convergent belt, A6 and B6 abutting end are connected to extraction electrode on same root convergent belt, adjacent two electrodes
Exit connects the binding post of terminal box, and so as to bypass diode 25 in parallel, each bypass diode 25 protects the first light simultaneously
Lie prostrate the battery strings of cell piece A and the second photovoltaic cell B.Therefore, by taking 72 type components as an example, the open circuit electricity of general components structure
VOC and short circuit current ISC is pressed, then the open-circuit voltage of the utility model structure is VOC/2, and short galvanic electricity stream is 2ISC.
The centre of above-mentioned photovoltaic cell component structure shares convergent belt, is used for the first photovoltaic cell A of parallel connection and the second light
Two part battery strings of cell piece B are lied prostrate, width can be 6mm~12mm, and thickness can be 0.3mm~0.5mm.
The bypass diode that above-mentioned photovoltaic cell component structure uses, rated current need > 25A.
The mating box body of terminal box, the connector, cable that above-mentioned photovoltaic cell component structure uses, rated current need >
25A。
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. a kind of photovoltaic cell component structure, it is characterised in that: include: photovoltaic cell, mutual latticing, convergent belt, the photovoltaic
Cell piece includes symmetrical the first photovoltaic cell and the second photovoltaic cell, first photovoltaic cell and the second light
Volt cell piece includes N string photovoltaic cell, and every string photovoltaic cell includes M photovoltaic cell, is passed through between M photovoltaic cell mutual
Latticing forms cascaded structure, is formed and is coupled by intermediate convergent belt between the first photovoltaic cell and the second photovoltaic cell
Structure, the first photovoltaic cell and the second photovoltaic cell form tandem junction by the convergent belt at both ends respectively between string and string
Structure, wherein the polarity of adjacent photovoltaic cell piece drawn between string and string is opposite.
2. a kind of photovoltaic cell component structure according to claim 1, it is characterised in that: in the first photovoltaic cell and second
Convergent belt among photovoltaic cell is equipped with the bypass diode of protection the first photovoltaic cell and the second photovoltaic cell.
3. a kind of photovoltaic cell component structure according to claim 1, it is characterised in that: the N in the N string photovoltaic cell
For even number.
4. a kind of photovoltaic cell component structure according to claim 3, it is characterised in that: the first photovoltaic cell head and the tail
Photovoltaic cell string of the photovoltaic cell string of two strings respectively with two string of the second photovoltaic cell head and the tail is correspondingly connected to intermediate confluence
Take, the tie point of the photovoltaic cell string of first photovoltaic cell middle section between any two respectively with the second photovoltaic cell
The tie point of the photovoltaic cell string of piece middle section between any two is correspondingly connected on intermediate convergent belt, in convergent belt tie point
Between be equipped with protection the first photovoltaic cell and the second photovoltaic cell bypass diode.
5. a kind of photovoltaic cell component structure according to claim 4, it is characterised in that: the specified electricity of the bypass diode
Stream is greater than 25A.
6. a kind of photovoltaic cell component structure according to claim 1, it is characterised in that: the M photovoltaic cell is complete
Uncut cell piece, M photovoltaic cell are 2~10 photovoltaic cells.
7. a kind of photovoltaic cell component structure according to claim 1, it is characterised in that: the first photovoltaic cell and the second light
The safe current capacity for lying prostrate the convergent belt among cell piece is twice of general components structure short circuit current.
8. a kind of photovoltaic cell component structure according to claim 1, it is characterised in that: the width 6mm of the convergent belt~
12mm, thickness 0.3mm~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821036806.6U CN208819898U (en) | 2018-07-03 | 2018-07-03 | A kind of photovoltaic cell component structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821036806.6U CN208819898U (en) | 2018-07-03 | 2018-07-03 | A kind of photovoltaic cell component structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208819898U true CN208819898U (en) | 2019-05-03 |
Family
ID=66270291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821036806.6U Active CN208819898U (en) | 2018-07-03 | 2018-07-03 | A kind of photovoltaic cell component structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208819898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444624A (en) * | 2019-09-06 | 2019-11-12 | 马鞍山晶宇能源科技有限公司 | A kind of efficiently series-parallel photovoltaic module of split blade type |
-
2018
- 2018-07-03 CN CN201821036806.6U patent/CN208819898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444624A (en) * | 2019-09-06 | 2019-11-12 | 马鞍山晶宇能源科技有限公司 | A kind of efficiently series-parallel photovoltaic module of split blade type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230158593A1 (en) | Solar cell assembly | |
| CN108615777A (en) | Photovoltaic module | |
| CN104600141B (en) | Solar cell module | |
| CN105097975B (en) | Solar cell module | |
| CN206259375U (en) | A kind of circuit structure of crystal silicon battery photovoltaic module | |
| CN204407339U (en) | Solar module | |
| CN105633187B (en) | A kind of high power generation performance photovoltaic module | |
| CN205303481U (en) | Solar cell module | |
| CN208637433U (en) | Photovoltaic module | |
| CN104617169A (en) | Photovoltaic component | |
| CN109713066A (en) | A kind of photovoltaic module | |
| CN108258077A (en) | A kind of half photovoltaic cell component of full tandem type | |
| CN208923172U (en) | Photovoltaic module | |
| CN105552155B (en) | Solar cell module | |
| CN203521441U (en) | Photovoltaic module | |
| CN101958351A (en) | Solar cell module with a plurality of junction boxes | |
| CN201655821U (en) | Solar cell module with multiple junction boxes connected | |
| CN208819898U (en) | A kind of photovoltaic cell component structure | |
| CN109285917A (en) | solar module and manufacturing method thereof | |
| CN204497250U (en) | Preventing hot spot photovoltaic module | |
| CN105655431A (en) | Photovoltaic assembly and method based on optimal allocation of bypass diodes | |
| CN207834325U (en) | A kind of half photovoltaic cell component of full tandem type | |
| CN208111455U (en) | A kind of novel half photovoltaic cell component | |
| CN108281500A (en) | A kind of novel half photovoltaic cell component | |
| CN209328911U (en) | A kind of photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200116 Address after: 351111 No. 655, Guo Huan Dong Road, Hanjiang District, Putian, Fujian Co-patentee after: Fujian Jinshi Energy Co., Ltd. Patentee after: Fujian Great Power Co., Ltd. Address before: 351111 No. 655, Guo Huan Dong Road, Hanjiang District, Putian, Fujian Patentee before: Fujian Great Power Co., Ltd. |
|
| TR01 | Transfer of patent right |