CN205264735U - Solar cell assembly - Google Patents
Solar cell assembly Download PDFInfo
- Publication number
- CN205264735U CN205264735U CN201521127630.1U CN201521127630U CN205264735U CN 205264735 U CN205264735 U CN 205264735U CN 201521127630 U CN201521127630 U CN 201521127630U CN 205264735 U CN205264735 U CN 205264735U
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- China
- Prior art keywords
- solar
- solar module
- module according
- solar battery
- interconnecting strip
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- 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
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- Photovoltaic Devices (AREA)
Abstract
The utility model provides a solar cell assembly, including a plurality of solar wafer, be used for connecting a plurality of interconnection strips of a plurality of solar wafer, the interconnection strip includes the copper strips and sets up in the brazing metal layer on copper strips surface. Utilize interconnection strip including the brazing metal layer, the beading in solar wafer's the back, the back that can solve the solar wafer that uses among the solar cell assembly is during for full aluminium back of the body field structure, problem that can not the beading between solar wafer's the back and the interconnection strip makes being connected between solar wafer and the interconnection strip is convenient.
Description
Technical field
The utility model relates to solar photovoltaic technology field, more particularly, relates to a kind of sunCan battery component.
Background technology
Solar photovoltaic technology is the new and high technology of the energy, has unique advantage and huge exploitationUtilize potentiality. Solar module is a kind of common equipment for solar photovoltaic technology.
Solar module, adopts crystal silicon cell string conventionally. Crystal silicon cell string comprise the back side withThe crystalline silicon battery plate of grid line, and described crystalline silicon battery plate is welded by interconnecting strip.
Cell piece in solar module uses back of the body aluminum passivation technology, can improve the light of battery componentPhotoelectric transformation efficiency. Traditional battery is owing to will considering the Welding Problems of battery while making assembly, soThe back side is not full aluminium back surface field, but has designed the main grid line identical with front radical, to help conduct electricityStream. So just must sacrifice the passivation effect of a part of area. Must use in addition argentiferous or full silverGrid line, to realize the welding of tin-coated copper strip and battery. Meanwhile, the cost compare of silver-colored grid is high. Solar energy is sent outIn power technology, when the back side that part relates to cell piece in solar module is full aluminium aluminum back surface field,Traditional zinc-plated interconnecting strip can not directly directly be welded with the back side of described solar cell, but at full aluminiumOn the basis of back surface field, in former main grid position, one deck electrode is set again. By described electrode and zinc-plated interconnecting stripWelding realizes the welding of cell piece and zinc-plated interconnecting strip and the conduction of electric current. Like this, make solar cellThe assembling of group is cumbersome.
Therefore, unresolved the problems referred to above, are necessary to provide a kind of better solar module.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of solar module, and it solves tooThe solar battery sheet using in sun energy battery component, when its back side is full aluminium aluminum back surface field, the described sunThe problem of the welding job more complicated between the back side and the interconnecting strip of energy cell piece, making the back side is full aluminiumBetween the solar battery sheet of aluminum back surface field and interconnecting strip to be connected work more convenient.
A kind of solar module is provided in the technical solution adopted in the utility model, has comprised too someSun can cell piece and is connected some interconnecting strip of described some solar battery sheets, described solar battery sheetThe back side be only provided with and the direct-connected aluminium back surface field of described interconnecting strip, described interconnecting strip comprises copper strips and settingBrazing alloy layer in copper strip surface and fusing point lower than 190 DEG C.
Preferably, described brazing alloy layer is coated on the upper and lower surface of described copper strips, and described brazing alloyThe thickness of layer is 0.02mm～0.04mm.
Preferably, described some solar battery sheets are realized series connection by some interconnecting strip.
Preferably, described interconnecting strip one end is directly welded in the back side of a solar battery sheet, its anotherEnd is directly welded in the front with adjacent solar battery sheet.
Preferably, described solar module also comprise tempering white glass, back pad, lead-in wire, terminal,Terminal box, aluminium frame, packing material, encapsulant.
Preferably, described solar battery sheet of connecting by interconnecting strip, composition one Battery pack string, described inIts two ends of battery strings are connected on the terminal in described terminal box by lead-in wire.
Preferably, described terminal and terminal box, be arranged at described back pad outside.
Preferably, described packing material is filled in described solar battery sheet and described tempering white glass, instituteState between back pad and described aluminium frame.
Preferably, described aluminium frame is sheathed on outside described tempering white glass and back pad, and described encapsulant is positioned atBetween described back pad and described aluminium frame.
Preferably, described fusing point is that fusing point is the brazing solder of 182 DEG C lower than the brazing alloy layer of 190 DEG CM51。
Compared with prior art, the utility model double-sided glass photovoltaic module comprises brazing alloy by utilizationThe interconnecting strip of layer, is directly welded in the back side of described solar battery sheet, can solve solar battery groupWhen the back side of the solar battery sheet using in part is full aluminium aluminum back surface field, the back of the body of described solar battery sheetThe problem that can not directly weld between face and interconnecting strip, makes between described solar battery sheet and interconnecting stripConnection more fast, convenient.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below willAccompanying drawing to required use in embodiment or description of the Prior Art is briefly described, apparently,Accompanying drawing in the following describes is only embodiment of the present utility model, comes for those of ordinary skill in the artSay, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of solar module described in a kind of embodiment of the utility model.
Fig. 2 be described in a kind of embodiment of the utility model in solar module the section of interconnecting strip showIntention.
Fig. 3 is solar battery sheet in solar module described in a kind of embodiment of the utility modelBack side Welding Structure schematic diagram.
Fig. 4 is solar battery sheet in solar module described in a kind of embodiment of the utility modelThe structural representation that amplify at the back side.
Fig. 5 is the welding that the side direction of solar module described in a kind of embodiment of the utility model is amplifiedSchematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technology in the utility model embodimentScheme is clearly and completely described, and obviously, described embodiment is only one of the utility modelDivide embodiment, instead of whole embodiment. Based on the embodiment in the utility model, this area is commonTechnical staff is not making the every other embodiment obtaining under creative work prerequisite, all belongs to thisThe scope of utility model protection.
As shown in Figure 1, the utility model provides a kind of solar module 100, and it comprises too someSun energy cell piece 110, can realize the interconnecting strip 111 connecting between described some solar battery sheets 110,Go between 112, be positioned at the white glass of tempering of some solar battery sheets 110 tops that connect by interconnecting strip 111Glass 113, is positioned at the back pad 114 of some solar battery sheets 110 belows that interconnecting strip 111 connects, and is placed inThe aluminium frame 118 at described tempering white glass 113 and back pad 114 edges, is filled in described solar battery sheet110 and described tempering white glass 113, described back pad 114 and aluminium frame 118 between packing material 115,Terminal box 117, is positioned at the terminal 116 of described terminal box 117, be assembled in described aluminium frame 118 with described inThe encapsulant 119 in space between back pad 114. Described solar battery sheet 110, it comprises the back side 1101,Positive 1102. The back side 1101 of described solar battery sheet 110 is full aluminium aluminum back surface field, described front1102 comprise the silver-colored grid (not shown) for welding described interconnecting strip 111. Some described solar cellsSheet 110 is realized series connection by some interconnecting strip 111. Described in the described battery strings two ends by series connection are passed throughLead-in wire 112 realize and described terminal box 117 in terminal 116 between be connected, thereby realize electric currentConduction.
Fig. 2 is the generalized section of described interconnecting strip 111. Interconnecting strip 111 shown in Fig. 2 comprises that soldering closesGold layer 101 and copper strips 102. Described interconnecting strip 111 by described brazing alloy layer 101 fusion coating at copper strips102 upper and lower surfaces form. Described brazing alloy layer 101 is fusing point lower than the brazing solder of 190 DEG C. Preferably, described brazing alloy layer 101 can be that fusing point is the brazing solder M51 of 182 DEG C. Described brazing alloyThe thickness in monolayer of layer 101 is little compared with the thickness of described copper strips 102. The thickness H of described brazing alloy layer 102Scope is generally between 0.02mm～0.04mm. The concrete thickness of described brazing alloy layer 101, according to realityBorder situation is adjusted. For example, when the wide L of the cross section of described copper strips 102 is 1.2mm, high W is 0.2mmTime, the thickness H of described brazing alloy layer 101 can get 0.025mm.
It should be noted that, the fusing point of the brazing alloy layer 101 on described interconnecting strip 111 surfaces is lower, canTo be easy to realize the welding of interconnecting strip 111 and other metals. In the utility model, described interconnecting strip 111Can realize the direct welding with the back side 1101 of full aluminium back surface field battery 110.
The back side of the part solar battery sheet comprising with solar module 100 as shown in Figure 3,Be welded as example, in figure, solar battery sheet comprises the first solar battery sheet 1103, the second solar cellSheet 1104 and the 3rd solar battery sheet 1105, and described the first solar battery sheet 1103, second is tooSun energy cell piece 1104 and the 3rd solar battery sheet 1105 have identical structure. By some interconnectedBar 111 is realized described solar battery sheet 1103, described solar battery sheet 1104 and described solar-electricityThe series connection of pond sheet 1105. Wherein connect described solar battery sheet 1103 and described solar battery sheet 1104Interconnecting strip 111, its one end is directly welded in the back side of described solar battery sheet 1103, its other endBe welded in the front (not shown) of described solar battery sheet 1104. Equally, connect described solar-electricityThe interconnecting strip 111 of pond sheet 1104 and described solar battery sheet 1105, described in its one end is directly welded in tooThe back side of sun energy cell piece 1104, its other end is welded in the front silver of described solar battery sheet 1105Grid place (not shown).
Fig. 4 is the structure that amplify at the back side 1101 of solar battery sheet 110 in described solar moduleSchematic diagram. On the back side 1101 of described solar battery sheet 110, be provided with the full aluminium being formed by aluminium paste printingAluminum back surface field 1110. Described full aluminium aluminum back surface field 1110, can be with above-mentioned interconnecting strip 111 by directly welderingConnect, realize the conduction of electric current. And do not need to establish on full aluminium aluminum back surface field 1110 by of the prior artPut electrode, then by electrode and interconnecting strip welding, realize the conduction of electric current. Thereby make described solar energyThe assembling of battery component is fairly simple.
Understand for convenient, Fig. 5 provides the back side welding of the side direction amplification of described solar module and showsIntention, shown in figure, described solar battery sheet 110 comprises the back side 1101, positive 1102. Described interconnectedOne end of bar 111 is welded in the back side 1101 of described solar battery sheet 110.
To sum up, by adopting described copper strip surface that the interconnecting strip of brazing alloy layer is set, be directly welded in instituteState the back side of solar battery sheet, can solve the solar battery sheet using in solar module,When its back side is full aluminium aluminum back surface field, between the back side of described solar battery sheet and interconnecting strip can not be straightConnect the problem of welding, make between described solar battery sheet and interconnecting strip be connected convenient.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe utility model. To be aobvious for those skilled in the art to the multiple amendment of these embodimentAnd easily see, General Principle as defined herein can not depart from spirit or scope of the present utility modelSituation under, in other embodiments realize. Therefore, the utility model will can not be restricted to institute hereinThese embodiment that show, but to meet consistent with principle disclosed herein and features of novelty the widestScope.
Claims (10)
1. a solar module, comprising: some solar battery sheets and connect described some sunSome interconnecting strip of energy cell piece, is characterized in that, the back side of described solar battery sheet is only provided with and instituteState the direct-connected aluminium back surface field of interconnecting strip, described interconnecting strip comprises copper strips and is arranged at copper strip surface and fusing pointLower than the brazing alloy layer of 190 DEG C.
2. solar module according to claim 1, is characterized in that, described brazing alloyLayer is coated on the upper and lower surface of described copper strips, and the thickness of described brazing alloy layer is 0.02mm～0.04mm.
3. solar module according to claim 1, is characterized in that, described some sunCan realize series connection by described some interconnecting strip by cell piece.
4. solar module according to claim 1, is characterized in that, described interconnecting strip oneEnd is directly welded in the back side of a solar battery sheet, and its other end is directly welded in adjacent solar energyThe front of cell piece.
5. solar module according to claim 1, is characterized in that, described solar-electricityPond assembly also comprise tempering white glass, back pad, lead-in wire, terminal, terminal box, aluminium frame, packing material,Encapsulant.
6. solar module according to claim 5, is characterized in that, described by interconnectedThe solar battery sheet of bar series connection, composition one Battery pack string, its two ends of described battery strings connect by lead-in wireOn terminal in described terminal box.
7. solar module according to claim 5, is characterized in that, described terminal and connecingLine box, is arranged at described back pad outside.
8. solar module according to claim 5, is characterized in that, described packing materialBe filled between described solar battery sheet and described tempering white glass, described back pad and described aluminium frame.
9. solar module according to claim 5, is characterized in that, described aluminium frame is sheathedOutside described tempering white glass and back pad, described encapsulant is between described back pad and described aluminium frame.
10. solar module according to claim 1, is characterized in that, described fusing point is lowBe that fusing point is the brazing solder M51 of 182 DEG C in the brazing alloy layer of 190 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521127630.1U CN205264735U (en) | 2015-12-29 | 2015-12-29 | Solar cell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521127630.1U CN205264735U (en) | 2015-12-29 | 2015-12-29 | Solar cell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205264735U true CN205264735U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521127630.1U Expired - Fee Related CN205264735U (en) | 2015-12-29 | 2015-12-29 | Solar cell assembly |
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| CN (1) | CN205264735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221572A (en) * | 2017-05-03 | 2017-09-29 | 黄淮学院 | It is a kind of based on carbon nano-structured solar cell |
-
2015
- 2015-12-29 CN CN201521127630.1U patent/CN205264735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221572A (en) * | 2017-05-03 | 2017-09-29 | 黄淮学院 | It is a kind of based on carbon nano-structured solar cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Patentee after: CSI SOLAR POWER GROUP Co.,Ltd. Patentee after: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. Address before: 215129 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Patentee before: CSI SOLAR POWER (CHINA) Inc. Patentee before: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211229 |