CN202487597U - Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string - Google Patents
Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string Download PDFInfo
- Publication number
- CN202487597U CN202487597U CN 201120568889 CN201120568889U CN202487597U CN 202487597 U CN202487597 U CN 202487597U CN 201120568889 CN201120568889 CN 201120568889 CN 201120568889 U CN201120568889 U CN 201120568889U CN 202487597 U CN202487597 U CN 202487597U
- Authority
- CN
- China
- Prior art keywords
- based solar
- solar cell
- silica
- electric conductor
- type
- 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.)
- Expired - Fee Related
Links
Images
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 present utility model discloses a silicon-based solar energy cell string and a photovoltaic assembly formed by packaging the cell string. The silicon-based solar energy cell string is formed by arranging more than two N-type and P-type silicon-based solar energy cell sheets with same or similar power and working current at intervals according to the P-N-P-N or N-P-N-P sequence, front side electrode grid wires of neighboring N-type and P-type silicon-based solar energy cell sheets are welded and connected by conductors, and back side electrode grid wires are welded and connected by conductors. The photovoltaic assembly is formed by welding and connecting the silicon-based solar energy cell strings in series and parallel. the distance between the cell sheets is reduced during the assembly packaging process, the total area of the assembly is reduced, the photoelectric conversion rate of the assembly is enhanced, the unit area power of the assembly can be enhanced more than 2%, bidirectional bending of the conductors is avoided, fragments are not easily caused during the welding process, and the welding technology is more simple.
Description
Technical field
The photovoltaic module that the utility model relates to a kind of silica-based solar cell string and is packaged into.
Background technology
Relate to P type and N type semiconductor in the silica-based solar cell, P type semiconductor (P refers to positive, positively charged): mix a spot of triad (being generally B) by silicon through special process and form, can be in the inner hole that forms positively charged of semiconductor; N type semiconductor (N refers to negative, and is electronegative): mix a spot of pentad by silicon through special process and form, can be at the electronegative free electron of the inner formation of semiconductor.
The solar cell energy is that the basis of electric energy is the photovoltaic effect of PN junction by transform light energy.Illumination is mapped on the battery that to produce electronics one hole right, and electronics one hole receives the attraction of internal electric field to after arriving the space charge region, and electronics flows into N district, and the hole flows into the P district, and the result makes the N district store superfluous electronics, and there is the hole of surplus in the P district.They form near PN junction and potential barrier photoproduction electric field in the opposite direction.The photoproduction electric field also makes P district positively charged except partial offset potential barrier effect of electric field, the N district is electronegative, between N district and P district, produces electromotive force.
The silica-based solar cell sheet has P type silica-based solar cell sheet and N type silica-based solar cell sheet, and P type silica-based solar cell sheet is based on P type silicon chip, and the diffusion into the surface P elements forms the P type solar battery sheet of N+ layer emitter region, and principle is as shown in Figure 1.N type silica-based solar cell sheet is based on the N type solar battery sheet that N type silicon chip is made, and the diffusion into the surface boron element forms P+ layer emitter region, and principle is as shown in Figure 2.
Solar module is to be formed by one or more parallelly connected silica-based solar cell string encapsulation back; The silica-based solar cell string is formed by one or more silica-based solar cell sheet series connection again; Existing solar cell string all adopts the battery sheet of single type: as welding electrical connection between the perhaps single N type silica-based solar cell sheet of single P type silica-based solar cell sheet; Like this; Just need the front electrode of a battery sheet be linked to each other with the backplate of adjacent cell, the problem that exists like this is: must leave the gap between (1) battery sheet, be generally 2 millimeters; The effective area that this has reduced assembly has reduced the transformation efficiency of battery; (2) because welding need be connected the front electrode of a battery sheet and the backplate of adjacent cell sheet, so welding needs to bend (referring to Fig. 3 and Fig. 4), in welding process, is very easy to cause fragment.
Summary of the invention
The purpose of the utility model is exactly to solve the problems referred to above that exist in the prior art; A kind of distance between the battery sheet that reduces in the component package process is provided; Improve optoelectronic transformation efficiency, reduce the silica-based solar cell string of fragment in the welding process and the photovoltaic module that is packaged into thereof.
For accomplishing above-mentioned purpose; The technical solution of the utility model is: a kind of silica-based solar cell string; It is according to P-N-P-N by the identical or close N type silica-based solar cell sheet of two above power, operating current and P type silica-based solar cell sheet ... Perhaps N-P-N-P ... Sequence interval rearrange; Be welded to connect by electric conductor between the front electrode grid line of adjacent N type silica-based solar cell sheet and P type silica-based solar cell sheet and the front electrode grid line, be welded to connect by electric conductor between backplate grid line and the backplate grid line.Realize being connected in series between each solar battery sheet.
Above-mentioned described silica-based solar cell string; Described electric conductor all is welding or all is that conducting resinl all is that circuit board welds employed electric conductor perhaps that perhaps one of them electric conductor is a welding, and another electric conductor is a conducting resinl; Perhaps an electric conductor is a welding; Another electric conductor is that circuit board welds employed electric conductor, and perhaps an electric conductor is a conducting resinl, and another electric conductor is that circuit board welds employed electric conductor.
The photovoltaic module that above-mentioned said silica-based solar cell string is packaged into; It is by a string or go here and there after described silica-based solar cell string is welded to connect by the busbar parallel connection more, carries out with EVA, glass, backboard, framework, terminal box and silica gel that component package forms again.
The photovoltaic module that above-mentioned said silica-based solar cell string is packaged into, it is after being welded to connect by busbar series connection by the battery pack more than two groups, carries out component package formation with EVA, glass, backboard, framework, terminal box and silica gel again; That battery pack is made up of a string described silica-based solar cell string or form by the above described silica-based solar cell string that is welded to connect by the busbar parallel connection of two strings.
The utility model adopts N type silica-based solar cell sheet and P type silica-based solar cell sheet to be spaced the coplanar Welding Structure; The positive pole of N type silica-based solar cell sheet is connected with the negative pole of P type silica-based solar cell sheet; The negative pole of N type silica-based solar cell sheet is connected with the positive pole of P type silica-based solar cell sheet, realizes the series connection between each battery sheet.This structure has reduced the distance between the battery sheet and battery sheet in the component package process, has reduced the total area of assembly, has improved the photoelectric conversion rate of assembly, can make the unit are power of assembly improve more than 2%.And, avoided the compound bending of electric conductor, no longer cause fragment in the welding process, welding procedure is more simple.
Description of drawings
Fig. 1 is a P type silica-based solar cell sheet operation principle sketch map;
Among the figure, dotted line is represented sunlight, and 1 is front electrode, and 2 is antireflective coating, and 3 is N type layer, and 4 is P type layer, and 5 is back electrode;
Fig. 2 is a N type silica-based solar cell sheet operation principle sketch map;
Among the figure, dotted line is represented sunlight, and 1 is front electrode, and 2 is antireflective coating, and 3 is N type layer, and 4 is P type layer, and 5 is back electrode;
Fig. 3 is front electrode grid line and the front electrode grid line Welding Structure sketch map between existing N type or the P type silica-based solar cell sheet;
Fig. 4 is backplate grid line and the backplate grid line Welding Structure sketch map between existing N type or the P type silica-based solar cell sheet;
In Fig. 3 and Fig. 4,6 is main grid, and 7 is electric conductor;
Fig. 5 is N type and a P type silica-based solar cell sheet Welding Structure sketch map in the utility model;
Fig. 6 is N type among the present invention and P type silica-based solar cell sheet welding front view;
In Fig. 5 and Fig. 6,6 is main grid, and 7 is electric conductor, and 8 is P type silica-based solar cell sheet, and 9 is N type silica-based solar cell sheet;
Fig. 7 is a kind of structural representation of the utility model silica-based solar cell string;
Fig. 8 is second kind of structural representation of the utility model silica-based solar cell string;
Fig. 9 is the third structural representation of the utility model silica-based solar cell string;
Figure 10 is a kind of structural representation of the utility model photovoltaic module;
Figure 11 is second kind of structural representation of the utility model photovoltaic module.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
Embodiment 1 like Fig. 5, Fig. 6 and silica-based solar cell string shown in Figure 7; It is to be rearranged by identical or close two the N type silica-based solar cell sheets 9 of power, operating current and P type silica-based solar cell sheet 8 sequence interval according to N-P-N; Be welded to connect by electric conductor 7 between the front electrode grid line 6 of adjacent N type silica-based solar cell sheet and P type silica-based solar cell sheet and the front electrode grid line 6; Be welded to connect by electric conductor 7 between backplate grid line and the backplate grid line, realize being connected in series between each solar battery sheet.Electric conductor 7 can all be a welding; Can all be conducting resinl also; Perhaps all be that circuit board welds employed electric conductor; Perhaps one of them electric conductor is a welding, and another electric conductor is a conducting resinl; Perhaps one of them electric conductor is a welding, and another electric conductor is that circuit board welds employed electric conductor; Perhaps one of them electric conductor is a conducting resinl, and another electric conductor is that circuit board welds employed electric conductor.
Also more than three, P type silica-based solar cell sheet is also more than two, according to N-P-N-P for N type silica-based solar cell sheet in the present embodiment ... The sequence arrangement of N.
The embodiment 1 of photovoltaic module shown in figure 10, it is after above embodiment 1 described silica-based solar cell string is welded to connect by the busbar parallel connection by three strings, carries out component package formation with EVA, glass, backboard, framework, terminal box and silica gel again.The silica-based solar cell string of this embodiment also a string or two strings or three strings.Described silica-based solar cell string is embodiment 2 or embodiment 3 described silica-based solar cell strings also.
The embodiment 2 of photovoltaic module shown in figure 11 after it is welded to connect busbar series connection by the battery pack more than three groups, carries out component package formation with EVA, glass, backboard, framework, terminal box and silica gel again.Battery pack is after above embodiment 1 described silica-based solar cell string is welded to connect by the busbar parallel connection by three strings, carries out component package formation with glass, backboard, framework and terminal box again.Also two groups or three groups of battery pack among this embodiment, the embodiment 1 described silica-based solar cell string that battery pack is used also a string or two strings or three strings; Two strings or the above-described silica-based solar cell string of three strings are welded to connect by the busbar parallel connection.Described silica-based solar cell string among this embodiment is embodiment 2 or embodiment 3 described silica-based solar cell strings also.
Claims (4)
1. silica-based solar cell string; It is characterized in that: it is according to P-N-P-N by the identical or close N type silica-based solar cell sheet of two above power, operating current and P type silica-based solar cell sheet ... Perhaps N-P-N-P ... Sequence interval rearrange; Be welded to connect by electric conductor between the front electrode grid line of adjacent N type silica-based solar cell sheet and P type silica-based solar cell sheet and the front electrode grid line, be welded to connect by electric conductor between backplate grid line and the backplate grid line.
2. silica-based solar cell string according to claim 1; It is characterized in that: described electric conductor all is welding or all is that conducting resinl all is that circuit board welds employed electric conductor perhaps that perhaps one of them electric conductor is a welding, and another electric conductor is a conducting resinl; Perhaps an electric conductor is a welding; Another electric conductor is that circuit board welds employed electric conductor, and perhaps an electric conductor is a conducting resinl, and another electric conductor is that circuit board welds employed electric conductor.
3. photovoltaic module; It is characterized in that: it is by a string or go here and there after claim 1 or 2 described silica-based solar cell strings are welded to connect by the busbar parallel connection more, carries out with EVA, glass, backboard, framework, terminal box and silica gel that component package forms again.
4. photovoltaic module is characterized in that: it is after being welded to connect by the busbar series connection by the battery pack more than two groups, carries out component package formation with EVA, glass, backboard, framework, terminal box and silica gel again; Claim 1 that battery pack is made up of a string claim 1 or 2 described silica-based solar cell strings or that be welded to connect by the busbar parallel connection more than two strings or 2 described silica-based solar cell strings are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120568889 CN202487597U (en) | 2011-12-31 | 2011-12-31 | Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120568889 CN202487597U (en) | 2011-12-31 | 2011-12-31 | Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202487597U true CN202487597U (en) | 2012-10-10 |
Family
ID=46961994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120568889 Expired - Fee Related CN202487597U (en) | 2011-12-31 | 2011-12-31 | Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202487597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103706A (en) * | 2014-06-30 | 2014-10-15 | 浙江晶科能源有限公司 | Novel photovoltaic module |
| CN104465892A (en) * | 2014-12-31 | 2015-03-25 | 中国科学院上海微系统与信息技术研究所 | Method for manufacturing photovoltaic modules interconnected on same sides of adjacent solar cells in solar cell string |
-
2011
- 2011-12-31 CN CN 201120568889 patent/CN202487597U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103706A (en) * | 2014-06-30 | 2014-10-15 | 浙江晶科能源有限公司 | Novel photovoltaic module |
| CN104465892A (en) * | 2014-12-31 | 2015-03-25 | 中国科学院上海微系统与信息技术研究所 | Method for manufacturing photovoltaic modules interconnected on same sides of adjacent solar cells in solar cell string |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101304054B (en) | Solar battery module for glass curtain wall | |
| CN102709372B (en) | Photovoltaic module | |
| JPWO2012001815A1 (en) | Solar cell module | |
| CN102800723B (en) | Solar module and manufacture method thereof | |
| CN102522460A (en) | Packaging method of silicon-based solar cells of photovoltaic module | |
| CN205645827U (en) | Heterojunction solar cell and module | |
| JP2014033240A (en) | Solar cell module | |
| CN102769059A (en) | Bridged solar cell and solar power generation system | |
| CN204632773U (en) | The high-efficiency crystal silicon photovoltaic module that during a kind of longitudinally installation, power generation loss is few | |
| CN102403374A (en) | Solar cell plate, solar cell string and solar cell assembly | |
| CN202487597U (en) | Silicon-based solar energy cell string and photovoltaic assembly formed by packaging the cell string | |
| TWI631814B (en) | Photovoltaic module | |
| CN103094385A (en) | Photovoltaic module | |
| CN201975407U (en) | Glass for solar photovoltaic assembly | |
| CN203377218U (en) | Five-main grid solar crystalline silicon solar cell | |
| CN204721306U (en) | Photovoltaic module | |
| CN207834317U (en) | A kind of photovoltaic cell component with integrated circuit board | |
| CN203521434U (en) | Solar cell sheet, solar cell string, and solar cell assembly | |
| CN209434207U (en) | A kind of high efficiency photovoltaic module | |
| CN207896930U (en) | A kind of photovoltaic module | |
| CN208225885U (en) | Separated type solar battery and solar array battery | |
| CN109216475B (en) | Solar panel assembly | |
| CN207834316U (en) | A kind of photovoltaic cell component of novel circuit design | |
| CN202025765U (en) | Efficient crystalline silica solar energy cell structure | |
| CN207368926U (en) | Generating electricity on two sides photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20201231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |