CN202839629U - Solar cell - Google Patents
Solar cell Download PDFInfo
- Publication number
- CN202839629U CN202839629U CN 201220539138 CN201220539138U CN202839629U CN 202839629 U CN202839629 U CN 202839629U CN 201220539138 CN201220539138 CN 201220539138 CN 201220539138 U CN201220539138 U CN 201220539138U CN 202839629 U CN202839629 U CN 202839629U
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- China
- Prior art keywords
- main grid
- grid line
- grid lines
- front main
- back side
- 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
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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
Abstract
The utility model discloses a solar cell which comprises a cell body, a plurality of front main grid lines and a plurality of back main grid lines. The front main grid lines are arranged on the upper surface of the cell body and are parallel to one another, the back main grid lines are arranged on the lower surface of the cell body and are parallel to one another, the quantity of the front main grid lines is identical to that of the back main grid lines, and the front main grid lines are perpendicular to the back main grid lines. When required to be serially connected with each other, two cells at two ends of two different rows or columns of a cell string can be serially connected with each other in a rectangular plane only by short welding rods, the integral cell string is positioned in the rectangular plane, bus tapes are omitted, the area of the cell string is reduced, consumption of packaging materials is decreased, and the production cost is lowered. Besides, the two cells are connected with each other by the short welding rods, accordingly, resistance of the integral cell string is reduced, and power of a packaged photovoltaic module can be increased.
Description
Technical field
The utility model relates to the solar energy generation technology field, more particularly, relates to a kind of solar battery sheet.
Background technology
Along with day by day highlighting of energy crisis, the development and use new forms of energy become the major subjects of current energy field research.Because that solar energy has is pollution-free, without region restriction, the advantage such as inexhaustible, the research solar power generation becomes the main direction of development and use new forms of energy.
Carrying out photovoltaic generation by crystal silicon solar energy battery is a kind of major way that utilizes now solar energy.After crystal silicon chip is prepared as solar battery sheet, a plurality of described batteries are connected, then adopt the materials such as glass substrate, EVA and metal edge frame that the battery strings that connects is carried out can forming behind the packaging protection and have larger power output photovoltaic module.
Existing solar battery sheet comprises: battery body and the front main grid line and the back side main grid line that are separately positioned on described battery body upper and lower surface; Wherein, the upper and lower surface that is arranged on battery body of described front main grid line and back side main grid line symmetry.During existing solar battery sheet encapsulation, cell piece between the different rows such as need connect needs external long convergent belt to be connected with many welding rods of lacking, increase the area of battery strings after the serial connection, and increased the use of encapsulating material, increased production cost.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of solar battery sheet, and described cell piece can be avoided the use of convergent belt, has reduced the area of battery strings after the serial connection, has reduced production cost.
For achieving the above object, the utility model provides following technical scheme:
A kind of solar battery sheet, described cell piece comprises:
Battery body;
Be arranged on many front main grid lines of described battery body upper surface, described front main grid line is parallel to each other;
Be arranged on many back side main grid lines of described battery body lower surface, described back side main grid line is parallel to each other;
Wherein, the number of described front main grid line is identical with the number of described back side main grid line; Described front main grid line is vertical with described back side main grid line.
Preferably, in the above-mentioned solar battery sheet, the number of described front main grid line is 2 or 3.
Preferably, in the above-mentioned solar battery sheet, described solar battery sheet is polycrystalline silicon battery plate or monocrystalline silicon battery sheet.
Preferably, in the above-mentioned solar battery sheet, the live width of described front main grid line is 1mm-2mm.
Preferably, in the above-mentioned solar battery sheet, the live width of described back side main grid line is 1mm-2mm.
Can find out that from technique scheme solar battery sheet provided by the utility model comprises: battery body; Be arranged on many front main grid lines of described battery body upper surface, described front main grid line is parallel to each other; Be arranged on many back side main grid lines of described battery body lower surface, described back side main grid line is parallel to each other; Wherein, the number of described front main grid line is identical with the number of described back side main grid line; Described front main grid line is vertical with described back side main grid line.
When carrying out the cell piece serial connection, row adopts the described cell piece of the application with row or column with two cell pieces that the row two ends need to be connected in series, at this moment, described two cell pieces can be realized series connection between described two cell pieces by the short welding rod of length in the rectangle plane of whole battery strings place, can avoid the use of convergent belt, reduce the area of battery strings, and then reduced the use of encapsulating material, reduced production cost; Simultaneously, because different rows or list two cell pieces that need serial connection and adopt short welding rod to connect has reduced the resistance of integral battery door string, and then can improve the power of the photovoltaic module after the encapsulation, guaranteed the performance of photovoltaic module.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the vertical view of a kind of solar battery sheet common in the prior art;
Fig. 2 is that solar battery sheet shown in Fig. 1 is perpendicular to the sectional drawing of grid line direction;
Fig. 3 is the sectional drawing that solar battery sheet is parallel to the grid line direction shown in Fig. 1;
Fig. 4 is the structural representation in when series connection on the same straight line of solar battery sheet shown in Fig. 1;
Fig. 5 is the whole cascaded structure schematic diagram of solar battery sheet shown in Fig. 1;
Fig. 6 is the structural representation of a kind of solar battery sheet provided by the utility model;
Fig. 7 is for adopting the structural representation of the battery strings that solar battery sheet is connected in series shown in Fig. 6.
Embodiment
Just as described in the background section, during existing solar battery sheet encapsulation, cell piece between the different rows such as need connect needs external long convergent belt and many short welding rods to connect, increased the area of battery strings after the serial connection, thereby increased the use of encapsulating material, increased production cost.
With reference to figure 1-Fig. 3, existing solar battery sheet is provided with laterally zygomorphic front main grid line 2 and back side main grid line 3 at battery body 1.
With reference to figure 4 and Fig. 5, when carrying out photovoltaic component encapsulating, be connected in series with back side main grid line by the front main grid line of welding rod 4 with adjacent two solar battery sheets with delegation or the same solar battery sheet that lists; Not with delegation or the same solar battery sheet serial connection that lists the time, if need to adopt good toughness, the convergent belt 5 of growing and many short welding rod 4 serial connections.Wherein, when cell piece was connected in series with cell piece, front main grid line was connected with back side main grid line.
By foregoing description as can be known, with delegation or same two solar battery sheets that list such as need serial connection the time, need to not be connected in series by external convergent belt and welding rod, as shown in Figure 5, on the one hand, increase the area of solar cell string, thereby increased the use of encapsulating material, for example needed a large amount of convergent belts and more welding rod, need simultaneously more large-area glass substrate, EVA offset plate that needs are larger, increased production cost; Simultaneously, the length of convergent belt is larger, and the use of convergent belt has increased the resistance of battery strings, and then so that the power output of the rear photovoltaic module of encapsulation is lower, affects the performance of photovoltaic module,
The inventor studies discovery, changes the grid line layout of solar battery sheet, makes the front main grid line of cell piece vertical with back side main grid line.When carrying out the cell piece serial connection, row can be realized connecting by being positioned at the short welding rod of battery strings place rectangle plane length with two cell pieces that row or column and row two ends need to be connected in series, other cell pieces still adopt the cell piece of front main grid line and back side main grid line parallel, at this moment, avoided the use of external convergent belt and welding rod, reduce the area of battery strings after the serial connection, and then reduced the use of encapsulating material, reduced production cost; Simultaneously, because different rows or list two cell pieces that need serial connection and adopt short welding rod to connect has reduced the resistance of integral battery door string, and then can improve the power of the photovoltaic module after the encapsulation, guaranteed the performance of photovoltaic module.
Based on above-mentioned research, the utility model provides a kind of solar battery sheet, and this solar battery sheet comprises:
Battery body;
Be arranged on many front main grid lines of described battery body upper surface, described front main grid line is parallel to each other;
Be arranged on many back side main grid lines of described battery body lower surface, described back side main grid line is parallel to each other;
Wherein, the number of described front main grid line is identical with the number of described back side main grid line; Described front main grid line is vertical with described back side main grid line.
When carrying out the cell piece serial connection, row adopts the described cell piece of the application with row or column with two cell pieces that the needs at row two ends are connected in series, at this moment, described two cell pieces can be realized series connection between described two cell pieces by the short welding rod of the length in the rectangle plane of whole cell piece place, thereby can avoid the use of external convergent belt and welding rod, reduce the area of battery strings, reduced the use of encapsulating material, reduced production cost; Simultaneously, because different rows or list two cell pieces that need serial connection and only need adopt the short welding rod that is positioned at battery strings place rectangle plane can realize connection, reduce the resistance of integral battery door string, and then can improve the power of the photovoltaic module after the encapsulation, guaranteed the performance of photovoltaic module.
It more than is the application's core concept, below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization in the situation of the utility model intension, so the utility model is not subjected to the restriction of following public specific embodiment.
Secondly; the utility model is described in detail in conjunction with schematic diagram; when the utility model embodiment is described in detail in detail; for ease of explanation; the profile of indication device spare structure can be disobeyed general ratio and be done local the amplification; and described schematic diagram is example, and it should not limit the scope of the utility model protection at this.The three-dimensional space that in actual fabrication, should comprise in addition, length, width and height.
Based on above-mentioned thought, the embodiment of the present application provides a kind of solar battery sheet, and with reference to figure 6, this solar battery sheet comprises: battery body 1; Be arranged on the front main grid line 6 of described battery body 1 upper surface; Be arranged on the back side main grid line 7 of described battery body 1 lower surface; Wherein, described front main grid line 6 is vertical with back side main grid line 7, and the two number is identical.
Cell piece shown in Fig. 6 comprises 3 front main grid lines 6 that are parallel to each other and 3 back side main grid lines 7 that are parallel to each other, and described front main grid line 6 is arranged on 1mm-2mm with the live width of back side main grid line 7.The number of described front main grid line and back side main grid line also can all be set to 2.
Described cell piece is square, and comprising: monocrystalline silicon battery sheet or polycrystalline silicon battery plate, cell piece can be the monocrystalline silicon battery sheet of 125mm * 125mm as described, also can be monocrystalline silicon battery sheet or the polycrystalline silicon battery plate of 156mm * 156mm.
Layout and the size separately of described front main grid line and back side main grid line can be set by correspondence, so that the cell piece of serial connection is convenient to welding mutually.
With reference to figure 7, when carrying out the cell piece serial connection, be expert at and two cell pieces of switching place (cell piece shown in the dashed rectangle among Fig. 7 of going, namely existing photovoltaic module needs the cell piece of convergent belt serial connection) the described cell piece of employing the application, at this moment, only need to realize connecting by short welding rod welding, at this moment, welding rod is positioned at whole battery strings place rectangle plane, can additionally not increase the area of battery.
Fig. 7 only needs 6 described cell pieces of the application to cooperate 18 existing cell pieces to get final product in 4 * 6 the battery strings that is depicted as that 24 batteries consist of.
And for 6 * 10 the battery strings that common 60 batteries consist of, only need the described cell piece of 10 the application to cooperate 50 existing cell pieces to get final product.
Seen from the above description, adopt the described cell piece of the application can externally avoid the use of convergent belt and welding rod, reduced the area of battery strings, thereby reduced the use of encapsulating material, reduced production cost; And use size short in connect welding rod (being positioned at the welding rod of whole battery strings place rectangle plane) and reduced the resistance of whole battery strings, thereby guaranteed encapsulation afterwards photovoltaic module have higher power; Simultaneously, reducing of cell area reduced area, the weight of photovoltaic module after the encapsulation, installs and uses convenient.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a solar battery sheet is characterized in that, comprising:
Battery body;
Be arranged on many front main grid lines of described battery body upper surface, described front main grid line is parallel to each other;
Be arranged on many back side main grid lines of described battery body lower surface, described back side main grid line is parallel to each other;
Wherein, the number of described front main grid line is identical with the number of described back side main grid line; Described front main grid line is vertical with described back side main grid line.
2. solar battery sheet according to claim 1 is characterized in that, the number of described front main grid line is 2 or 3.
3. solar battery sheet according to claim 1 is characterized in that, described solar battery sheet is polycrystalline silicon battery plate or monocrystalline silicon battery sheet.
4. solar battery sheet according to claim 1 is characterized in that, the live width of described front main grid line is 1mm-2mm.
5. solar battery sheet according to claim 4 is characterized in that, the live width of described back side main grid line is 1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539138 CN202839629U (en) | 2012-10-19 | 2012-10-19 | Solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539138 CN202839629U (en) | 2012-10-19 | 2012-10-19 | Solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839629U true CN202839629U (en) | 2013-03-27 |
Family
ID=47951266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220539138 Expired - Fee Related CN202839629U (en) | 2012-10-19 | 2012-10-19 | Solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839629U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346187A (en) * | 2013-07-12 | 2013-10-09 | 宁波尤利卡太阳能科技发展有限公司 | Solar battery module |
| CN103413857A (en) * | 2013-05-17 | 2013-11-27 | 南昌大学 | Production method of serial synchronization of front electrode and cell piece of crystalline silicon heterojunction solar cell |
| CN103684249A (en) * | 2013-12-17 | 2014-03-26 | 英利集团有限公司 | Connecting method of solder strip and bus bar and solar cell module |
| CN104052394A (en) * | 2014-06-23 | 2014-09-17 | 山东力诺光伏高科技有限公司 | Method for connecting photovoltaic module battery pieces |
-
2012
- 2012-10-19 CN CN 201220539138 patent/CN202839629U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413857A (en) * | 2013-05-17 | 2013-11-27 | 南昌大学 | Production method of serial synchronization of front electrode and cell piece of crystalline silicon heterojunction solar cell |
| CN103413857B (en) * | 2013-05-17 | 2015-10-28 | 南昌大学 | The front electrode of silicon/crystalline silicon heterojunction solar cell and cell piece are connected in series synchronous manufacture method |
| CN103346187A (en) * | 2013-07-12 | 2013-10-09 | 宁波尤利卡太阳能科技发展有限公司 | Solar battery module |
| CN103684249A (en) * | 2013-12-17 | 2014-03-26 | 英利集团有限公司 | Connecting method of solder strip and bus bar and solar cell module |
| CN104052394A (en) * | 2014-06-23 | 2014-09-17 | 山东力诺光伏高科技有限公司 | Method for connecting photovoltaic module battery pieces |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20191019 |