CN203984345U - A kind of photovoltaic component terminal box of being convenient to busbar connection - Google Patents
A kind of photovoltaic component terminal box of being convenient to busbar connection Download PDFInfo
- Publication number
- CN203984345U CN203984345U CN201420430106.0U CN201420430106U CN203984345U CN 203984345 U CN203984345 U CN 203984345U CN 201420430106 U CN201420430106 U CN 201420430106U CN 203984345 U CN203984345 U CN 203984345U
- Authority
- CN
- China
- Prior art keywords
- terminal box
- splicing ear
- common bus
- busbar
- convenient
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 claims abstract description 15
- 210000005069 ears Anatomy 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- UIPVMGDJUWUZEI-UHFFFAOYSA-N copper;selanylideneindium Chemical class [Cu].[In]=[Se] UIPVMGDJUWUZEI-UHFFFAOYSA-N 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model proposes a kind of photovoltaic component terminal box that busbar connects of being convenient to, it comprises terminal box body and electric connection line, described photovoltaic module comprises the battery pack string that use busbar connects multiple cell pieces and the common bus that battery pack string is connected with terminal box, in described terminal box body, be provided with multiple busbar splicing ears, be provided with the perforate parallel with the Width of the common bus of assembly at the position of described splicing ear, common bus is welded to connect with the pad position of splicing ear from described perforate passes.Terminal box of the present utility model is provided with the perforate parallel with the Width of common bus at splicing ear position, and common bus is without directly being welded to connect through perforate and splicing ear of bending; Splicing ear adopts plane or L-type setting, uses respectively different welding procedures, so can eliminate to greatest extent the stress influence after welding, and structural design is simple, connects reliably the long service life of product.
Description
Technical field
The utility model relates to solar-photovoltaic technology field, particularly a kind of photovoltaic component terminal box of being convenient to busbar connection.
Background technology
Increasingly serious along with Global climate change and problem of environmental pollution, green regenerative energy sources industry last decade is developed rapidly.Solar energy is a kind of renewable resource, utilizes the solar cell technology that photovoltaic effect generates electricity to enjoy common people to pay close attention to.Solar cell is by the material that can produce photovoltaic effect, makes as materials such as silicon, GaAs, indium selenium coppers, light energy conversion can be become to electric energy.At present, combined the photovoltaic module forming by multi-disc solar cell and used for building various photovoltaic generating systems in a large number, or for build up energy saving and environment friendly building as constructure screen wall.
The electric energy that in actual use, need to use photovoltaic component terminal box that photovoltaic module is produced is drawn with outside load and is connected.Therefore, photovoltaic component terminal box is the critical component that photovoltaic module builds various electricity generation systems.As shown in Figure 1, for the electric energy of photovoltaic module 10 is drawn, need to gang up common bus 14 and wore to the assembly back side from assembly front using busbar connect battery pack that multiple cell pieces 12 form, be welded to connect with the splicing ear (copper sheet) in assembly junction box, Figure 1 shows that the cabling mode of common bus 14 in current photovoltaic module, Figure 2 shows that the structural representation of current terminal box and busbar splicing ear wherein, common bus 14 need the perforate 244 from terminal box body 20 in through being welded to connect (as shown in Figure 3 a) with the pad portion 242 of splicing ear 24 again, can find out from Fig. 1 and Fig. 2, because the perforate 244 on terminal box body is vertical with the Width of common bus 14, therefore want to allow common bus 14 and splicing ear weld, common bus must be turned back and just can then weld through perforate 244 after 90 °, shown in Fig. 3 b, this structure set-up mode existing problems mainly contain: the closely folded bit architecture that forms metal material in common bus bending part branch, so in the time that electric current passes through, easily produce electric spark, easily busbar itself and parts are around damaged, affect the useful life of product, moreover, after junction box glue-pouring sealing, easily producing bubble at common bus bending part, when photovoltaic module work, temperature can be very high, and bubble can constantly expand and cause gap constantly to become large, finally can affect quality and the useful life of whole terminal box, in addition, as shown in Figure 3 a, because need to being upward through perforate, welds down to the pad position of splicing ear again by busbar, the sweep of busbar has a stress always and exists, under long applied at elevated temperature environment after sealant pouring and sealing, this stress can exert an influence to the useful life of busbar itself and the effect being welded to connect, and then affected the useful life of whole terminal box.
For the problems referred to above, also has at present a solution, weld again a perpendicular busbar in the common bus end in photovoltaic module front, so, busbar, in the time being connected with the terminal box terminal at the back side through assembly, can directly weld through splicing ear perforate, but this mode can not fundamentally solve the above problems without bending, and increased use and the processing step of busbar, be not a kind of more thoroughly, solution that cost is low.
Utility model content
In view of above-mentioned the problems of the prior art, the purpose of this utility model is to provide a kind of terminal box that busbar connects of being convenient to, can realize busbar with the convenient of terminal box splicing ear and be connected rapidly, technique is simple, connection is reliable, can not affect the useful life of busbar and terminal box.
For reaching the purpose of this utility model, a kind of photovoltaic component terminal box of being convenient to busbar connection of the present utility model comprises terminal box body and electric connection line, described photovoltaic module comprises the battery pack string that use busbar connects multiple cell pieces and the common bus that battery pack string is connected with terminal box, in described terminal box body, be provided with multiple busbar splicing ears, be provided with the perforate parallel with the Width of the common bus of assembly at the position of described splicing ear, common bus is welded to connect with the pad position of splicing ear from described perforate passes.
Preferably, described splicing ear is plane layout.
Preferred again, described splicing ear is L-type setting, and its wrap direction is parallel with the Width of common bus.
Preferred again, described busbar is that electric resistance welding is connected with the pad position of splicing ear.
Preferred again, described each splicing ear is provided with two pad positions of welding with common bus.
Preferred again, described each splicing ear is provided with a pad position and described pad position setting in a row of welding with common bus.
The beneficial effects of the utility model are, the described photovoltaic component terminal box of being convenient to busbar connection is provided with the perforate parallel with the Width of common bus at the splicing ear position of terminal box, so, common bus can directly be welded to connect through the pad position of perforate and splicing ear without bending; Splicing ear adopts plane or L-type setting, uses respectively different welding procedures, so can eliminate to greatest extent the stress influence after welding, and structural design is simple, connects reliably the long service life of product.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the utility model is aforesaid will be become apparent with other object, feature and advantage.Wherein:
Figure 1 shows that the structural representation of the photovoltaic module of prior art;
Figure 2 shows that the structural representation of the photovoltaic component terminal box of prior art;
Fig. 3 a is depicted as the cross-sectional schematic of the A-A face of Fig. 2;
Fig. 3 b is depicted as the schematic diagram of the common bus bending cabling of prior art;
Figure 4 shows that the structural representation of the photovoltaic component terminal box of being convenient to busbar connection of an embodiment of the present utility model;
Fig. 4 a is depicted as the cross-sectional schematic of the B-B face of Fig. 4;
Figure 5 shows that the structural representation of the photovoltaic component terminal box of being convenient to busbar connection of another embodiment of the present utility model;
Fig. 5 a is depicted as the cross-sectional schematic of the C-C face of Fig. 5;
The structural representation of the photovoltaic component terminal box of being convenient to busbar connection of another embodiment of the present utility model shown in Fig. 6.
Embodiment
By feature of the present utility model and advantage, details are as follows by reference to the accompanying drawings:
The structural representation of the photovoltaic component terminal box of being convenient to busbar connection of an embodiment of the present utility model as shown in Figure 4, described terminal box comprises terminal box body 40 and electric connection line 42, described photovoltaic module comprises the battery pack string that use busbar connects multiple cell pieces and the common bus that battery pack string is connected with terminal box, in described terminal box body 40, be provided with multiple busbar splicing ears 44, be provided with the perforate 444 parallel with the Width of the common bus of assembly at the position of described splicing ear, common bus is welded to connect with the pad position 442 of splicing ear from described perforate 444 passes.
In the present embodiment, the copper sheet that described splicing ear 44 is plane layout, as shown in Fig. 4 a, in this embodiment, common bus 14 turns to directly and welds through after the perforate 444 and pad position 442 of splicing ear without bending from assembly front is passed, simple and the busbar of technique can not produce large stress concentration portion position, and can not be affected useful life.
The structural representation of the photovoltaic component terminal box of being convenient to busbar connection of another embodiment of the present utility model as shown in Figure 5, as shown in Figure 5 a, described splicing ear 44 ' is L-type setting, and its wrap direction is parallel with the Width of common bus 14, in the time that common bus 14 passes from perforate 444, parallel with the vertical bending part of splicing ear and mutually press close to, this is just for electric resistance welding has been created condition, use electric resistance welding instrument directly busbar and splicing ear to be welded, without adopting traditional soldering technique, simple and the environmental protection of technique, can not produce the tin cigarette that human body is produced to injury, and this kind of welding connecting mode avoided the bending stress problem producing of busbar completely, extend the working life of busbar and terminal box.
Figure 4 shows that for existing in positive positive negative two the terminal box designs of always confluxing that adopt tiling up and down of assembly, in this design, correspondingly on the splicing ear 44 of terminal box be provided with upper and lower two pad positions 442, and in use, it is no on each splicing ear, all having a pad position 442, and this has just caused unnecessary waste.For this problem, the structural representation of the photovoltaic component terminal box of being convenient to busbar connection of another embodiment of the present utility model as shown in Figure 6, on each splicing ear 44 of terminal box, be only provided with a pad position 442, photovoltaic module now can adopt the stacked design of the positive and negative electrode of common bus, and as long as an insulating barrier is set between positive and negative electrode busbar.So, can save the area of assembly, the size that more can reduce assembly junction box reduces manufacturing cost.
The photovoltaic component terminal box of being convenient to busbar connection of the present utility model, be provided with at the splicing ear position of terminal box with assembly and draw the parallel perforate of the Width of common bus, so, common bus can directly be welded to connect through the pad position of perforate and splicing ear without bending; Splicing ear adopts plane or L-type setting, uses respectively different welding procedures, so can eliminate to greatest extent the stress influence after welding, and structural design is simple, connects reliably the long service life of product.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model openly in scope; still can do some corrections or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (6)
1. be convenient to the photovoltaic component terminal box that busbar connects for one kind, described photovoltaic module comprises the battery pack string that use busbar connects multiple cell pieces and the common bus that battery pack string is connected with terminal box, described terminal box comprises terminal box body and electric connection line, it is characterized in that, in described terminal box body, be provided with multiple busbar splicing ears, be provided with the perforate parallel with the Width of the common bus of assembly at the position of described splicing ear, common bus is welded to connect with the pad position of splicing ear from described perforate passes.
2. a kind of photovoltaic component terminal box that busbar connects of being convenient to as claimed in claim 1, is characterized in that, described splicing ear is plane layout.
3. a kind of photovoltaic component terminal box that busbar connects of being convenient to as claimed in claim 1, is characterized in that, described splicing ear is L-type setting, and its wrap direction is parallel with the Width of common bus.
4. a kind of photovoltaic component terminal box that busbar connects of being convenient to as claimed in claim 3, is characterized in that, described busbar is that electric resistance welding is connected with splicing ear.
5. a kind of photovoltaic component terminal box that busbar connects of being convenient to as claimed in claim 1, is characterized in that, described each splicing ear is provided with two pad positions of welding with common bus.
6. a kind of photovoltaic component terminal box that busbar connects of being convenient to as claimed in claim 1, is characterized in that, described each splicing ear is provided with a pad position and described pad position setting in a row of welding with common bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420430106.0U CN203984345U (en) | 2014-07-31 | 2014-07-31 | A kind of photovoltaic component terminal box of being convenient to busbar connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420430106.0U CN203984345U (en) | 2014-07-31 | 2014-07-31 | A kind of photovoltaic component terminal box of being convenient to busbar connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984345U true CN203984345U (en) | 2014-12-03 |
Family
ID=51981758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420430106.0U Expired - Lifetime CN203984345U (en) | 2014-07-31 | 2014-07-31 | A kind of photovoltaic component terminal box of being convenient to busbar connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135226A (en) * | 2014-07-31 | 2014-11-05 | 苏州快可光伏电子股份有限公司 | Photovoltaic module junction box facilitating bus bar connection |
| AU2022291656B1 (en) * | 2022-09-30 | 2023-11-23 | Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
-
2014
- 2014-07-31 CN CN201420430106.0U patent/CN203984345U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135226A (en) * | 2014-07-31 | 2014-11-05 | 苏州快可光伏电子股份有限公司 | Photovoltaic module junction box facilitating bus bar connection |
| AU2022291656B1 (en) * | 2022-09-30 | 2023-11-23 | Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
| US12100776B2 (en) | 2022-09-30 | 2024-09-24 | Zhejiang Jinko Solar Co., Ltd. | Photovoltaic module and method for producing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |