CN108566158A - Photovoltaic cell assembly - Google Patents
Photovoltaic cell assembly Download PDFInfo
- Publication number
- CN108566158A CN108566158A CN201810195068.8A CN201810195068A CN108566158A CN 108566158 A CN108566158 A CN 108566158A CN 201810195068 A CN201810195068 A CN 201810195068A CN 108566158 A CN108566158 A CN 108566158A
- Authority
- CN
- China
- Prior art keywords
- battery strings
- photovoltaic
- battery
- electrode terminal
- terminal box
- 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.)
- Pending
Links
- 238000005452 bending Methods 0.000 claims abstract description 57
- 210000003850 cellular structure Anatomy 0.000 claims description 20
- 210000004027 cell Anatomy 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 abstract description 5
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- H01L31/0504—
-
- 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 invention discloses a photovoltaic cell assembly, comprising: the photovoltaic cell array comprises a positive electrode junction box connected with the positive electrode of the photovoltaic cell array, a negative electrode junction box connected with the negative electrode of the photovoltaic cell array, and a plurality of bypass diodes arranged in the positive electrode junction box and/or the negative electrode junction box; the photovoltaic cell array comprises a plurality of series-connected cell string groups, each cell string group comprises a plurality of parallel-connected cell strings, each cell string comprises a plurality of series-connected cell pieces, each cell string group is in one-to-one parallel connection with each bypass diode, a bus bar at the connection position of the photovoltaic cell array and the bypass diodes is bent to form a bending section, and each cell string group is connected with the bypass diodes through the bending section. The invention makes the operation of the electrode lead-out wire convenient during lamination, reduces the use of insulating materials at the electrode lead-out wire, increases the operation efficiency during lamination, and only needs two junction boxes.
Description
Technical field
The invention belongs to photovoltaic cell technical fields, and in particular to a kind of photovoltaic cell component.
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.
Usual diode is set in terminal box, when diodes in parallel is accessed circuit, needs welding electrode in circuit
Lead-out wire so that processing technology is relatively complicated.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of photovoltaic cell components, reduce the welding of electrode outlet line, carry
High lamination efficiency.
The technical scheme is that:A kind of photovoltaic cell component, including:
Photovoltaic battery array,
The positive electrode terminal box being connected with the anode of photovoltaic battery array anode,
The negative electrode terminal box being connected with the cathode of photovoltaic battery array,
Multiple bypass diodes being set in positive electrode terminal box and/or in negative electrode terminal box;
The photovoltaic battery array includes multiple concatenated battery strings groups, and each battery strings group includes the battery of multiple parallel connections
String, the battery strings include multiple concatenated cell pieces, and each battery strings group corresponds simultaneously with each bypass diode respectively
Connection connection, the photovoltaic battery array and the busbar of bypass diode junction are bent to form bending segment, the battery strings group
It is connected with bypass diode by bending segment.
Directly it will be bent to form bending segment with the busbar of bypass diode junction in the present invention, passes through bending segment and side
Road diode is connected, therefore the present invention does not need welding electrode lead-out wire so that processing technology is more convenient, and positive negative electricity
Without carrying out isolated operation below busbar at pole.
In the present invention there are many arrangement modes of photovoltaic battery array, preferably, multiple battery strings groups are arranged side by side, institute
The anode and cathode for stating photovoltaic battery array are located on same cornerwise two endpoints.
Preferably, the battery strings group is 3, the battery strings group includes 2 battery strings, and 3 battery strings groups are from light
The cathode side for lying prostrate positive side towards the photovoltaic battery array of cell array is followed successively by the first battery strings group, the second battery respectively
String group and third battery strings group.
Preferably, setting is set in the negative electrode terminal box there are two bypass diode in the positive electrode terminal box
Bypass diode there are one setting.
Preferably, the one end of the first battery strings group and the second battery strings group far from photovoltaic battery array anode passes through
First series connection busbar be connected in series with, the second battery strings group and third battery strings group far from photovoltaic battery array cathode one
End is connected in series with by the second series connection busbar, and the first battery strings group and the second battery strings group are being located at photovoltaic battery array just
The busbar of pole one end is bent to form the first bending segment and the second bending segment respectively, and the third battery strings group is located at photovoltaic cell
The busbar of array cathode one end is bent to form third bending segment;It is arranged between the first battery strings group and the second battery strings group
Have and draw busbar along the first of the length direction arrangement of battery strings, one end of the first extraction busbar is connected with first
Busbar is connected, and the other end is bent to form the 4th bending segment;It is arranged between the second battery strings group and third battery strings group
Have and draw busbar along the second of the length direction arrangement of battery strings, one end of the second extraction busbar is connected with second
Busbar is connected, and the other end is bent to form the 5th bending segment;First bending segment and the second bending segment and the 4th bending
Section be connected with positive electrode terminal box so that two in positive electrode terminal box bypass diode respectively with the first battery strings group with
And second battery strings group be in parallel;The third bending segment and the 5th bending segment are connected with negative electrode terminal box, so that third
Battery strings group is in parallel with the bypass diode in negative electrode terminal box.
For the ease of bypass diode parallel connection is accessed circuit, preferably, further including being matched with photovoltaic battery array
Glass back plate, the position corresponding position of the anode and cathode of the glass back plate and photovoltaic battery array is respectively arranged with first
Through-hole and the second connection through-hole are connected, first bending segment, the second bending segment and the 4th bending segment pass through the first connection logical
Kong Bingyu positive electrode terminal boxes are connected, and the third bending segment and the 5th bending segment pass through the second connection through-hole and and negative electrode
Terminal box is connected.
Preferably, further including distinguishing matched four frames with the four edges of photovoltaic battery array.
Preferably, being offered respectively just on frame corresponding with positive electrode terminal box and negative electrode wiring box position respectively
Electrode connection box escape groove and negative electrode terminal box escape groove.
Preferably, respectively frame corresponding with positive electrode terminal box and negative electrode wiring box position by with photovoltaic cell battle array
It arranges the matched bottom surface support portion in bottom surface and is formed with the matched vertical support portion in photovoltaic battery array side.
Preferably, the photovoltaic cell component is half photovoltaic cell component.
Compared with prior art, beneficial effects of the present invention are embodied in:
The invention enables electrode outlet line when lamination is easy to operate, while reducing isolated insulation material at electrode outlet line and make
With, increase lamination when operating efficiency, as long as and the present invention use two terminal boxes.
Description of the drawings
Fig. 1 is the structural schematic diagram of photovoltaic battery array in the present invention.
Fig. 2 is the structural schematic diagram of photovoltaic battery array positive outside wire in the present invention.
Fig. 3 is that photovoltaic battery array positive outside wire is bowed to structural schematic diagram in the present invention.
Fig. 4 is the structural schematic diagram of photovoltaic battery array negative outside wire in the present invention.
Fig. 5 is that photovoltaic battery array negative outside wire is bowed to structural schematic diagram in the present invention.
Fig. 6 is the structural schematic diagram of dorsulum of the present invention.
Fig. 7 is the structural schematic diagram of frame and the first matched embodiment of backboard in the present invention.
Fig. 8 is the structural schematic diagram of frame and matched second of the embodiment of backboard in the present invention.
Specific implementation mode
As shown in Figure 1, the present invention includes:
Photovoltaic battery array,
The positive electrode terminal box 10 being connected with the anode of photovoltaic battery array anode,
The negative electrode terminal box 11 being connected with the cathode of photovoltaic battery array,
Multiple bypass diodes 12 being set in positive electrode terminal box and/or in negative electrode terminal box;
Photovoltaic battery array includes multiple concatenated battery strings groups, and each battery strings group includes the battery strings of multiple parallel connections,
Battery strings include multiple concatenated cell pieces 16, and each battery strings group is in parallel with each bypass diode one-to-one correspondence respectively to be connected
Connect, the busbar of photovoltaic battery array and bypass diode junction is bent to form bending segment, battery strings group by bending segment with
Bypass diode is connected.
Photovoltaic cell component of the present invention is half photovoltaic cell component or full wafer photovoltaic cell component.In the present invention directly
It will be bent to form bending segment with the busbar of bypass diode junction, is connected with bypass diode by bending segment, therefore
The present invention does not need welding electrode lead-out wire so that processing technology is more convenient.
In the present invention there are many arrangement modes of photovoltaic battery array, such as shown in Figure 1, multiple battery strings groups and arrange
It sets, the anode and cathode of photovoltaic battery array are located on same cornerwise two endpoints.Ordinary circumstance, battery strings group are
3, battery strings group includes 2 battery strings, and 3 battery strings groups are from the positive side of photovoltaic battery array towards photovoltaic battery array
Cathode side be followed successively by the first battery strings group 1, the second battery strings group 2 and third battery strings group 3 respectively.
As shown in Fig. 2~Fig. 5, there are two bypass diode, negative electrode terminal boxes for setting in usual positive electrode terminal box 10
There are one bypass diodes for setting in 11.First battery strings group 1 and the second battery strings group 2 far from photovoltaic battery array anode one
End is connected in series with by the first series connection busbar 4, and the second battery strings group 2 and third battery strings group 3 are negative far from photovoltaic battery array
One end of pole is connected in series with by the second series connection busbar 5, and the first battery strings group 1 and the second battery strings group 2 are located at photovoltaic cell
The busbar of array anode one end is bent to form the first bending segment 13 and the second bending segment 14 respectively, and third battery strings group 3 is located at
The busbar of photovoltaic battery array cathode one end is bent to form third bending segment 15;First battery strings group 1 and the second battery strings group 2
Between be provided with and first draw busbar 6 along the length direction arrangement of battery strings, first draws one end and the of busbar 6
One series connection busbar 4 is connected, and the other end is bent to form the 4th bending segment 61;Second battery strings group 2 and third battery strings group 3 it
Between be provided with along battery strings length direction arrangement second draw busbar 7, second draw busbar 7 one end and second
Series connection busbar 5 is connected, and the other end is bent to form the 5th bending segment 71;First bending segment 13 and the second bending segment 14 and
Four bending segments 61 are connected with positive electrode terminal box 10, so that two in positive electrode terminal box 10 bypass diode is respectively with
One battery strings group 1 and the second battery strings group 2 are in parallel;Third bending segment 15 and the 5th bending segment and 11 phase of negative electrode terminal box
Connection, so that third battery strings group 3 is in parallel with the bypass diode in negative electrode terminal box 11.
For the ease of by bypass diode parallel connection access circuit, as shown in fig. 6, the invention also includes with photovoltaic battery array
Matched glass back plate 8, glass back plate 8 are respectively arranged with the anode of photovoltaic battery array and the position corresponding position of cathode
First connection through-hole 81 and second connects through-hole 82, and the first bending segment 13, the second bending segment 14 and the 4th bending segment 61 pass through
First connection through-hole 81 is simultaneously connected with positive electrode terminal box 10, and third bending segment 15 and the 5th bending segment 71 pass through the second connection
Through-hole 82 is simultaneously connected with negative electrode terminal box 11.
As shown in figure 8, the invention also includes distinguish matched four frames 9 with the four edges of photovoltaic battery array.Point
Positive electrode terminal box 10 is offered respectively on frame not corresponding with positive electrode terminal box 10 and 11 position of negative electrode terminal box to keep away
Allow 11 escape groove 92 of slot 91 and negative electrode terminal box.
As shown in fig. 7, frame 9 may be in the present invention:Respectively with positive electrode terminal box 10 and negative electrode terminal box 11
The corresponding frame in position by with the matched bottom surface support portion in photovoltaic battery array bottom surface and with photovoltaic battery array side phase
The vertical support portion composition of cooperation.
Claims (10)
1. a kind of photovoltaic cell component, including:
Photovoltaic battery array,
The positive electrode terminal box being connected with the anode of photovoltaic battery array anode,
The negative electrode terminal box being connected with the cathode of photovoltaic battery array,
Multiple bypass diodes being set in positive electrode terminal box and/or in negative electrode terminal box;
It is characterized in that, the photovoltaic battery array includes multiple concatenated battery strings groups, each battery strings group include it is multiple simultaneously
The battery strings of connection, the battery strings include multiple concatenated cell pieces, each battery strings group respectively with each bypass diode one
One correspondence is connected in parallel, and the photovoltaic battery array and the busbar of bypass diode junction are bent to form bending segment, described
Battery strings group is connected by bending segment with bypass diode.
2. photovoltaic cell component as described in claim 1, which is characterized in that multiple battery strings groups are arranged side by side, the photovoltaic
The anode and cathode of cell array are located on same cornerwise two endpoints.
3. photovoltaic cell component as claimed in claim 2, which is characterized in that the battery strings group is 3, the battery strings group
Including 2 battery strings, cathode side of 3 battery strings groups from the positive side of photovoltaic battery array towards photovoltaic battery array point
It is not followed successively by the first battery strings group, the second battery strings group and third battery strings group.
4. photovoltaic cell component as claimed in claim 3, which is characterized in that there are two other for setting in the positive electrode terminal box
Road diode, there are one bypass diodes for the interior setting of the negative electrode terminal box.
5. photovoltaic cell component as claimed in claim 4, which is characterized in that the first battery strings group and the second battery strings group
One end far from photovoltaic battery array anode is connected in series with by the first series connection busbar, the second battery strings group and third electricity
The pond one end of string group far from photovoltaic battery array cathode by second series connection busbar be connected in series with, the first battery strings group and
The busbar that second battery strings group is located at photovoltaic battery array anode one end is bent to form the first bending segment and the second bending respectively
Section, the busbar that the third battery strings group is located at photovoltaic battery array cathode one end are bent to form third bending segment;Described
The first extraction busbar of the length direction arrangement along battery strings, institute are provided between one battery strings group and the second battery strings group
The one end for stating the first extraction busbar is connected with the first series connection busbar, and the other end is bent to form the 4th bending segment;Described
The second extraction busbar of the length direction arrangement along battery strings, institute are provided between two battery strings groups and third battery strings group
The one end for stating the second extraction busbar is connected with the second series connection busbar, and the other end is bent to form the 5th bending segment;Described
One bending segment and the second bending segment and the 4th bending segment are connected with positive electrode terminal box, so that two in positive electrode terminal box
A bypass diode is in parallel with the first battery strings group and the second battery strings group respectively;The third bending segment and the 5th bending
Section is connected with negative electrode terminal box, so that third battery strings group is in parallel with the bypass diode in negative electrode terminal box.
6. photovoltaic cell component as claimed in claim 5, which is characterized in that further include and the matched glass of photovoltaic battery array
The position corresponding position of glass backboard, the anode and cathode of the glass back plate and photovoltaic battery array is respectively arranged with the first connection
Through-hole and the second connection through-hole, first bending segment, the second bending segment and the 4th bending segment pass through the first connection through-hole simultaneously
Be connected with positive electrode terminal box, the third bending segment and the 5th bending segment pass through the second connection through-hole and with negative electrode wiring
Box is connected.
7. photovoltaic cell component as claimed in claim 5, which is characterized in that further include and the four edges of photovoltaic battery array point
Not matched four frames.
8. photovoltaic cell component as claimed in claim 7, which is characterized in that respectively with positive electrode terminal box and negative electrode wiring
Positive electrode terminal box escape groove and negative electrode terminal box escape groove are offered on the corresponding frame of box position respectively.
9. photovoltaic cell component as claimed in claim 5, which is characterized in that respectively with positive electrode terminal box and negative electrode wiring
The corresponding frame of box position by with the matched bottom surface support portion in photovoltaic battery array bottom surface and with photovoltaic battery array side
Matched vertical support portion composition.
10. photovoltaic cell component as described in claim 1, which is characterized in that the photovoltaic cell component is half photovoltaic electric
Pond component.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810195068.8A CN108566158A (en) | 2018-03-09 | 2018-03-09 | Photovoltaic cell assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810195068.8A CN108566158A (en) | 2018-03-09 | 2018-03-09 | Photovoltaic cell assembly |
Publications (1)
Publication Number | Publication Date |
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CN108566158A true CN108566158A (en) | 2018-09-21 |
Family
ID=63531641
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CN201810195068.8A Pending CN108566158A (en) | 2018-03-09 | 2018-03-09 | Photovoltaic cell assembly |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109285905A (en) * | 2018-10-31 | 2019-01-29 | 浙江正泰太阳能科技有限公司 | Double generator unit imbrication photovoltaic modulies |
CN112186057A (en) * | 2020-08-31 | 2021-01-05 | 晶澳(扬州)太阳能科技有限公司 | Parallel-series structure photovoltaic module |
CN112531058A (en) * | 2019-09-18 | 2021-03-19 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
CN114068748A (en) * | 2020-07-31 | 2022-02-18 | 苏州腾晖光伏技术有限公司 | Crystalline silicon cell assembly and solar photovoltaic cell panel |
CN116346027A (en) * | 2023-03-03 | 2023-06-27 | 宁波博朋电子有限责任公司 | Junction box applied to ultra-high power photovoltaic module |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN109285905A (en) * | 2018-10-31 | 2019-01-29 | 浙江正泰太阳能科技有限公司 | Double generator unit imbrication photovoltaic modulies |
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CN116346027A (en) * | 2023-03-03 | 2023-06-27 | 宁波博朋电子有限责任公司 | Junction box applied to ultra-high power photovoltaic module |
CN116346027B (en) * | 2023-03-03 | 2023-12-12 | 宁波博朋电子有限责任公司 | Junction box applied to ultra-high power photovoltaic module |
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Application publication date: 20180921 |