CN204156801U - The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected - Google Patents
The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected Download PDFInfo
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- CN204156801U CN204156801U CN201420517761.XU CN201420517761U CN204156801U CN 204156801 U CN204156801 U CN 204156801U CN 201420517761 U CN201420517761 U CN 201420517761U CN 204156801 U CN204156801 U CN 204156801U
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- photovoltaic module
- terminal box
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- string
- autogamy
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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 photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected, it comprises the photovoltaic module string (11) be made up of the photovoltaic module of even rows (1), terminal box (2) is had to be positioned on photovoltaic module (1), described terminal box (2) comprises terminal box positive pole (3) and terminal box negative pole (4), autogamy cable (5) is had to draw from terminal box (2), component string negative pole outlet (6) on photovoltaic module string (11) and component string positive pole outlet (7) homonymy are drawn, described even rows photovoltaic module (1) is for arrange in the same way.Photovoltaic modulies all in the utility model is put in the same way, and the both positive and negative polarity outlet in the terminal box of all component, towards unanimously, decreases the probability that workman in construction makes mistakes; Adopting the utility model connection plan, all adopting the photovoltaic module cable carried, without the need to additionally increasing all the other cables with interconnected between the adjacent two pieces of photovoltaic modulies of row and same column, two rows photovoltaic module.
Description
Technical field
The utility model relates to photovoltaic power generation technology, refers to the photovoltaic module string autogamy cable connection structure that a kind of both positive and negative polarity same side output terminal is direct-connected particularly.
Background technology
Photovoltaic plant floor space is large, and direct current confluxes cable consumption greatly, and line power loss is many, and line drop difference is seriously inconsistent.
In photovoltaic generating system, multiple photovoltaic module is connected in a series arrangement, form the minimum unit with required VD.Photovoltaic substring electric current after series connection is the operating current of single photovoltaic module, and electric current is less, conveniently the concentration of transmissions of electric current, the electric energy loss reduced in transmitting procedure, and photovoltaic substring needs to conflux on the spot.
The terminal box of current solar photovoltaic assembly adopts block assembly terminal box mode, and the terminal box of photovoltaic module is according to 4mm
2connecting line cross section design, and photovoltaic component terminal box is all from being furnished with 4mm
2special photovoltaic cable, the 4mm of the photovoltaic substring after serial connection by laying separately
2special photovoltaic cable causes photovoltaic array DC lightning prevention header box.Generally photovoltaic module stube cable is longer, and connection nearby can cause cable winds, and conductor resistance loss is large, and the power output of assembly is declined.
The conventional photovoltaic module mode of connection has following two kinds:
Single direct-connected method as shown in Figure 1.This wiring is the most frequently used assembly tandem, each photovoltaic bracket is arranged about 40 photovoltaic modulies, divides two-layer up and down, 20 every layer.According to arrangement of components form, adjacent assembly is connected in series by positive-negative polarity by both positive and negative polarity lead-out wire successively in order that utilize assembly to carry.The positive and negative terminal of each substring is respectively in the both sides of substring, and each polar end is respectively through a 4mm
2single-core cable causes header box, the two rows assembly wiring all in this way that same photovoltaic bracket is installed.The advantage of this kind of mode is that wiring is simply clear, not easily makes mistakes; Shortcoming is that both positive and negative polarity lead-out wire is positioned at the two ends of substring and is interposed between more than 20m between distance, two cables cannot cause header box through same path, a bar assembly string outlet will be had additionally must to increase the cable of one section of more than 20m for introducing header box, add the consumption of cable, also increase the workload of cable laying.
As shown in Figure 2 double to dress serial connection method.According to arrangement of components form, adjacent assembly is connected in series by positive and negative polarity by both positive and negative polarity lead-out wire successively in order that utilize assembly to carry, and the two rows be arranged on same photovoltaic bracket are composed in series a substring jointly, the positive and negative terminal of each substring is positioned at the same side of substring, and each polar end is respectively through a 4mm
2single-core cable causes header box.The advantage of this mode is same one end that both positive and negative polarity lead-out wire is positioned at substring, two cables can cause header box through same path, decrease the workload of cable laying, but in the method for attachment of Fig. 2, the placing direction of photovoltaic module is contrary, the direction of the both positive and negative polarity on the photovoltaic component terminal box of therefore two rows is inconsistent, and in construction, operator easily connects and instead there is potential safety hazard.
Summary of the invention
The purpose of this utility model is the weak point overcoming above-mentioned existing background technology, and the photovoltaic module string autogamy cable connection structure providing a kind of both positive and negative polarity same side output terminal direct-connected.
The purpose of this utility model is reached by following measure: the photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected, it is characterized in that: it comprises the photovoltaic module string be made up of the photovoltaic module of even rows, terminal box is had to be positioned on photovoltaic module, described terminal box comprises terminal box positive pole and terminal box negative pole, autogamy cable is had to draw from terminal box, terminal box positive pole on adjacent photovoltaic module is connected by autogamy cable between two with terminal box negative pole, component string negative pole outlet on photovoltaic module string and component string positive pole outlet homonymy are drawn, described even rows photovoltaic module is for arrange in the same way.
In technique scheme, described component string negative pole outlet and the outlet of component string positive pole are autogamy cable.
The utility model is in conjunction with the feature of photovoltaic module and cabling techniques, a kind of both positive and negative polarity same side output terminal is proposed without being wound around direct-connected component string autogamy cable connection structure, even if with photovoltaic module autogamy cable by the connection such as wiring nearby, adjacent component cross-line, make stube cable without winding, photovoltaic module string both positive and negative polarity outlet cable is all drawn in photovoltaic module string the same side, the problem of photovoltaic module tandem delivery efficiency can be met, one-level that component string is connected to header box can be reduced again to conflux cable work amount, decrease line power loss.
Connection plan of the present utility model mainly contains following three advantages:
1) all photovoltaic modulies are put in the same way, and the both positive and negative polarity outlet in the terminal box of all component, towards unanimously, decreases the probability that workman in construction makes mistakes;
2) adopting the connection plan of this programme, all adopting the photovoltaic module cable carried, without the need to additionally increasing all the other cables with interconnected between the adjacent two pieces of photovoltaic modulies of row and same column, two rows photovoltaic module;
3) the both positive and negative polarity outlet of a photovoltaic module string is at the homonymy of photovoltaic module string, therefore the both positive and negative polarity outlet of photovoltaic module string by same Path Connection to header box, optimize the layout of photovoltaic module string and header box in convenient design, decrease the cable consumption that both positive and negative polarity outlet additionally increases when both sides.For the photovoltaic plant having several ten thousand group photovoltaic module strings, photovoltaic cable tens kilometers can be saved.
Accompanying drawing explanation
Fig. 1 is the single direct-connected structural representation connect of existing photovoltaic module string.
Fig. 2 is the double structural representation to dress serial connection of existing photovoltaic assembly string.
Fig. 3 is the utility model photovoltaic module tandem autogamy cable connection structure schematic diagram (embodiment 1).
Fig. 4 is the utility model photovoltaic module tandem autogamy cable connection structure schematic diagram (embodiment 2).
In figure: 1. photovoltaic module, 2. terminal box, 3. terminal box positive pole, 4. terminal box negative pole, 5. autogamy cable, the 6. outlet of component string negative pole, the 7. outlet of component string positive pole, 11. photovoltaic module strings.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not form to restriction of the present utility model, only for example.Simultaneously by illustrating that advantage of the present utility model will become clearly and easy understand.
Consult Fig. 3, Fig. 4 is known: the photovoltaic module string autogamy cable connection structure that the utility model both positive and negative polarity same side output terminal is direct-connected, it is characterized in that: it comprises the photovoltaic module string 11 be made up of the photovoltaic module 1 of even rows, terminal box 2 is had to be positioned on photovoltaic module 1, described terminal box 2 comprises terminal box positive pole 3 and terminal box negative pole 4, autogamy cable 5 is had to draw from terminal box 2, terminal box positive pole 3 on adjacent photovoltaic module 1 is connected by autogamy cable 5 between two with terminal box negative pole 4, component string negative pole outlet 6 on photovoltaic module string 11 and component string positive pole outlet 7 homonymy are drawn, described even rows photovoltaic module 1 is for arrange in the same way.
Described component string negative pole outlet 6 and component string positive pole outlet 7 are autogamy cable (as shown in Figure 3, Figure 4).
The utility model both positive and negative polarity same side output terminal, without being wound around direct-connected component string autogamy cabling techniques schematic diagram as shown in Figure 3, Figure 4, with terminal box positive pole 3 and terminal box negative pole 4 in the terminal box 2 of photovoltaic module 1, and is with autogamy cable 5 respectively.
Photovoltaic module 1 is in double layout, if figure is 2 × 10 modules, it is direct-connected without being wound around that first row leftmost side photovoltaic component terminal box negative pole 4 draws autogamy cable 5 terminal box adjacent with right side positive pole 3 autogamy cable 5, and right side photovoltaic component terminal box 2 connects successively, and first row is drawn with component string negative pole outlet 6.It is direct-connected without being wound around that first row leftmost side photovoltaic component terminal box positive pole 3 draws autogamy cable 5 terminal box adjacent with second row negative pole 4 autogamy cable 5, second row leftmost side photovoltaic component terminal box positive pole 3 terminal box adjacent with right side negative pole 4 autogamy cable 5 is direct-connected without being wound around, right side photovoltaic component terminal box 2 connects successively, form cross-line, second row is drawn with component string positive pole outlet 7.
When photovoltaic module on a photovoltaic bracket has even rows, all can install according to mode of connection of the present invention.
Fig. 3 is wherein the embodiment of left side outlet, and Fig. 4 is the embodiment of right side outlet.
Other unspecified part is prior art.
Claims (2)
1. the photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected, it is characterized in that: it comprises the photovoltaic module string (11) be made up of the photovoltaic module of even rows (1), terminal box (2) is had to be positioned on photovoltaic module (1), described terminal box (2) comprises terminal box positive pole (3) and terminal box negative pole (4), autogamy cable (5) is had to draw from terminal box (2), terminal box positive pole (3) on adjacent photovoltaic module (1) is connected by autogamy cable (5) between two with terminal box negative pole (4), component string negative pole outlet (6) on photovoltaic module string (11) and component string positive pole outlet (7) homonymy are drawn, described even rows photovoltaic module (1) is for arrange in the same way.
2. the photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal according to claim 1 is direct-connected, is characterized in that: described component string negative pole outlet (6) and component string positive pole outlet (7) are autogamy cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517761.XU CN204156801U (en) | 2014-09-10 | 2014-09-10 | The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517761.XU CN204156801U (en) | 2014-09-10 | 2014-09-10 | The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected |
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| Publication Number | Publication Date |
|---|---|
| CN204156801U true CN204156801U (en) | 2015-02-11 |
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| CN201420517761.XU Active CN204156801U (en) | 2014-09-10 | 2014-09-10 | The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631724A (en) * | 2018-06-26 | 2018-10-09 | 浙江晶科能源有限公司 | A kind of photovoltaic module |
| CN109067354A (en) * | 2018-08-08 | 2018-12-21 | 华润电力（贺州）有限公司 | A kind of low-loss flat uniaxial photovoltaic module connection system of novel, practical drop |
| CN109417360A (en) * | 2015-12-29 | 2019-03-01 | 特斯拉公司 | Photovoltaic module and its array with turning terminal box |
-
2014
- 2014-09-10 CN CN201420517761.XU patent/CN204156801U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417360A (en) * | 2015-12-29 | 2019-03-01 | 特斯拉公司 | Photovoltaic module and its array with turning terminal box |
| CN108631724A (en) * | 2018-06-26 | 2018-10-09 | 浙江晶科能源有限公司 | A kind of photovoltaic module |
| CN109067354A (en) * | 2018-08-08 | 2018-12-21 | 华润电力（贺州）有限公司 | A kind of low-loss flat uniaxial photovoltaic module connection system of novel, practical drop |
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| GR01 | Patent grant |