CN204119148U - A kind of external photovoltaic counnter attack device and photovoltaic plant convergence system - Google Patents
A kind of external photovoltaic counnter attack device and photovoltaic plant convergence system Download PDFInfo
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- CN204119148U CN204119148U CN201420636054.2U CN201420636054U CN204119148U CN 204119148 U CN204119148 U CN 204119148U CN 201420636054 U CN201420636054 U CN 201420636054U CN 204119148 U CN204119148 U CN 204119148U
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- counnter attack
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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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Abstract
The utility model discloses a kind of external photovoltaic counnter attack device and photovoltaic plant convergence system, external photovoltaic counnter attack device comprises the package casing leading to two terminals, and is arranged at least two counnter attack diodes in package casing; The side of package casing is provided with the first radiated rib group and the second radiated rib group, package casing is also provided with the bolt hole for being fixed on by external photovoltaic counnter attack device on header box, bolt hole runs through end face and the bottom surface of package casing; First radiated rib group and the second radiated rib group include perpendicular to multiple radiated rib on direction, package casing bottom surface.Implement the technical solution of the utility model, this external photovoltaic counnter attack device is independent from header box by counnter attack diode, become independently anti-reverse device, while solving the circulation between solar energy electroplax group string, pouring in down a chimney problem, also solve the problem that header box internal heat generation is too high, make the operating efficiency of header box and counnter attack diode be obtained for raising.
Description
Technical field
The utility model relates to field of photovoltaic power generation, especially relates to a kind of external photovoltaic counnter attack device and photovoltaic plant convergence system.
Background technology
In photovoltaic power generation equipment, the photovoltaic electroplax of matrix arrangement produces direct current, and the current-series of the electroplax generation of each row together, exports the electric current being about 10A.Each row electric current is converged in header box by parallel connection.At present, anti-reverse device is not set before electric current converges or places anti-reverse device in header box inside.There is following shortcoming in both of these case:
If one does not arrange anti-reverse device, once solar energy electroplax is blocked or has circumstance of occlusion each other, the current/voltage of generation will have difference, and when being connected in parallel, there will be circulation between group string, pour in down a chimney phenomenon, electric current can flow to the lower assembly of voltage.Thus significantly affect operating efficiency.
Two, header box inside arranges anti-reverse device, and header box self-temperature is high, radiating effect is poor, and each anti-reverse device produces heat, certainly will greatly promote header box internal temperature, affect the operating efficiency of header box module.
Three, header box inside arranges anti-reverse device, and in header box, other devices produce heat, affect the operating characteristic of anti-reverse device itself.
Four, anti-reverse device is integrated in header box, is unfavorable for inspection and maintenance.Once go wrong, need to open whole header box and overhaul, maintenance workload is large, and the time is long.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of novel external photovoltaic counnter attack device.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of external photovoltaic counnter attack device, comprise the package casing leading to two terminals, and be arranged at least two counnter attack diodes in described package casing;
The side of described package casing is provided with the first radiated rib group and the second radiated rib group, described package casing is also provided with the bolt hole for being fixed on by described external photovoltaic counnter attack device on header box, described bolt hole runs through end face and the bottom surface of described package casing;
Described first radiated rib group and described second radiated rib group include perpendicular to multiple radiated rib on direction, described package casing bottom surface.
In external photovoltaic counnter attack device of the present utility model, described package casing is rectangular block shape.
In external photovoltaic counnter attack device of the present utility model, described first radiated rib group and corresponding being arranged on the side of described package casing of rectangular block shape of described second radiated rib group.
In external photovoltaic counnter attack device of the present utility model, described package casing is the package casing adopting magnesium-aluminium alloy material to make.
In external photovoltaic counnter attack device of the present utility model, two terminals of described package casing are connected with photovoltaic connector respectively by wire.
In external photovoltaic counnter attack device of the present utility model, described wire is the wire adopting multiply copper core and cross-linking polyethylene materials to make.
In external photovoltaic counnter attack device of the present utility model, described photovoltaic connector is for ease of the TUV certification photovoltaic connector with solar energy electroplax and the grafting of header box interface.
In external photovoltaic counnter attack device of the present utility model, also comprise the thermal grease part for sealing described package casing and epoxy resin part.
The utility model additionally provides a kind of photovoltaic plant convergence system, comprises multiple row solar energy electroplax tandem and header box, and multiple above-mentioned external photovoltaic counnter attack device; Described multiple external photovoltaic counnter attack device is all arranged on the outside of described header box.
In photovoltaic plant convergence system of the present utility model, also comprise multiple set bolt; Each described set bolt matches with corresponding described bolt hole, each described external photovoltaic counnter attack device is fixed on the side of described header box.
Implement the technical solution of the utility model, at least there is following beneficial effect: this external photovoltaic counnter attack device is independent from header box by counnter attack diode, become independently anti-reverse device, while solving the circulation between solar energy electroplax group string, pouring in down a chimney problem, also solve the problem that header box internal heat generation is too high, make the operating efficiency of header box and counnter attack diode be obtained for raising.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the main TV structure schematic diagram of the external photovoltaic counnter attack device in an embodiment of the present utility model;
Fig. 2 is the plan structure schematic diagram of the external photovoltaic counnter attack device in an embodiment of the present utility model;
Fig. 3 is that the external photovoltaic counnter attack device in an embodiment of the present utility model connects the plan structure schematic diagram after photovoltaic connector by wire;
Wherein, 1, package casing; 11, the first radiated rib group; 12, the second radiated rib group; 13, bolt hole; 14, terminals; 2, wire; 3, photovoltaic connector.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
Fig. 1 to Fig. 3 shows a kind of external photovoltaic counnter attack device in the utility model, and this external photovoltaic counnter attack device belongs to the energy-conserving product of field of photovoltaic power generation, effectively can prevent electric current backflow, enhance the stability of photovoltaic generation.
Consult Fig. 1 to Fig. 2, this external photovoltaic counnter attack device comprises the package casing 1 leading to two terminals 14, and is arranged at least two counnter attack diodes (not shown) in package casing 1.Counnter attack diode uses the special counnter attack diode of solar energy, and its main effect is to prevent electric current backflow, and is low-heat, low noise during the special counnter attack diode operation of this solar energy.
Counnter attack diode was integrated in header box originally, by external package casing 1, counnter attack diode is independent from header box, thus became independent external photovoltaic counnter attack device.And generally can adopt multiple external photovoltaic counnter attack device, the heat that each external photovoltaic counnter attack device produces can directly be dispersed in air, thus can not promote the internal temperature of header box, improves the operating efficiency of header box further.Same, because each external photovoltaic counnter attack device is arranged on the outside of header box, the heat that in header box, other devices produce also can not have an impact to the operating characteristic of the external photovoltaic counnter attack device in the utility model itself, thus also further ensures working life and the result of use of this external photovoltaic counnter attack device.
Further, the Main Function side of this package casing 1 being provided with the first radiated rib group 11 and the second radiated rib group 12, first radiated rib group 11 and the second radiated rib group 12 is that the heat be beneficial to producing in package casing 1 is better dispersed in air.Package casing 1 is also provided with bolt hole 13, and bolt hole 13 runs through end face and the bottom surface of package casing 1.The Main Function of this bolt hole 13 is external photovoltaic counnter attack device to be fixed on header box.Understandably; the mode be fixed on header box by this external photovoltaic counnter attack device is varied; common suspension type such as can be adopted to fix or the adhered mode such as fixing; preferably have employed bolted mode in the utility model is fixed on header box by this external photovoltaic counnter attack device; certainly, anyly this external photovoltaic counnter attack device is fixed on fixed form on header box all in protection range of the present utility model.
Further, this first radiated rib group 11 and the second radiated rib group 12 include perpendicular to multiple radiated rib on direction, package casing 1 bottom surface.Understandably, this first radiated rib group 11 and the second radiated rib group 12 all can also comprise and be parallel to multiple radiated rib on direction, package casing 1 bottom surface, and vertically add and be parallel to multiple radiated rib on direction, package casing 1 bottom surface.Namely the molding mode of radiated rib is varied with arrangement, and according to different mounting conditions and service condition, molding mode and the arrangement of this radiated rib can be carried out adjusting to obtain best radiating effect accordingly.
In certain embodiments, the shape of this package casing 1 is varied, can adopt common shape, and such as circular block shape or square are block, and the shape of the package casing 1 in the utility model is preferably rectangular block shape.
Further, being arranged on the side of rectangular block shape of the first radiated rib group 11 and the second radiated rib group 12 correspondence.As shown in Figure 1 to Figure 2, the first radiated rib group 11 is arranged on the two sides, front and back of rectangular block shape, and the second radiated rib group 12 is arranged in the left and right sides of rectangular block shape.
In certain embodiments, this package casing 1 is generally made up of the metal material that thermal conductivity is good, and the package casing 1 in the utility model is preferably the package casing adopting magnesium-aluminium alloy material to make.Because magnesium-aluminium alloy material has the advantage that heat conduction is fast, intensity is high, quality is light, not only ensure that the good heat radiating of this external photovoltaic counnter attack device, also make this external photovoltaic counnter attack device be convenient to transport and install.
In certain embodiments, consult Fig. 3, two terminals 14 of this package casing 1 are connected with photovoltaic connector 3 respectively by wire 2.The Main Function of photovoltaic connector 3 is this external photovoltaic counnter attack device to be connected with solar energy electroplax and header box respectively; namely between solar energy electroplax group string and header box, add several external photovoltaic counnter attack devices; utilize the principle of the forward conduction of the special diode of photovoltaic in this external photovoltaic counnter attack device, oppositely cut-off; electric current would not pour in down a chimney, reflux; play protection solar energy electroplax group string, the effect of raising the efficiency.
Further, the wire 2 in the utility model is preferably the wire adopting multiply copper core and XLPE cross-linking polyethylene materials to make.The wire adopting multiply copper core and cross-linking polyethylene materials to make has Low ESR, high temperature resistance, radiation-resistant advantage.
Further, photovoltaic connector 3 is for ease of the TUV certification photovoltaic connector with solar energy electroplax and the grafting of header box interface.This TUV certification photovoltaic connector has plug and play, the advantage that convenient for maintaining detects.Namely this TUV certification photovoltaic connector has been through the photovoltaic connector of TUV certification, being explained as follows of TUV certification: T ü V mark is the mark of safety certification that German T ü V aims at components and parts product customization, is accepted widely in Germany and Europe.Meanwhile, enterprise when applying for T ü V mark, can merging application CB certificate, obtaining the certificate of other countries thus by changing.And at product by after certification, German T ü V can recommend these products to the rectifier machine factory coming to inquire about qualified components and parts supplier; In the process of complete machine certification, all components and parts obtaining T ü V mark all can be inspection-free.
In certain embodiments, this external photovoltaic counnter attack device also comprises thermal grease part for hermetically sealed shell 1 and epoxy resin part.Namely have employed thermal grease and epoxy resin mode seals package casing 1, the degree of protection of this external photovoltaic counnter attack device is made to reach IP67, thus while the efficiently radiates heat that ensure that this external photovoltaic counnter attack device, also assures that and the waterproof of this external photovoltaic counnter attack device and dust-proof extend the useful life of this external photovoltaic counnter attack device further.
Additionally provide a kind of photovoltaic plant convergence system in the utility model, comprise multiple row solar energy electroplax tandem (not shown) and header box (not shown), and above-mentioned external photovoltaic counnter attack device; The quantity of external photovoltaic anti-reverse device is multiple, and multiple external photovoltaic counnter attack devices are all arranged on the outside of header box.This photovoltaic plant convergence system is higher due to photovoltaic special diode caloric value, is fixed in header box, easily causes other electric component accelerated ageings in header box, therefore by external for special for multiple photovoltaic diode.And in order to protect and dispel the heat, each external photovoltaic counnter attack device utilizes package casing 1 pair of special diode of photovoltaic of band fin to carry out metal covering, and accomplishes degree of protection P67, ensure that it is dust-proof, while waterproof, can also effectively dispel the heat.
Further, this photovoltaic plant convergence system also comprises multiple set bolt.Each set bolt can match with the bolt hole 13 on corresponding external photovoltaic counnter attack device, each external photovoltaic counnter attack device is fixed on the side of header box.Certainly, this external photovoltaic counnter attack device each is fixed on other positions of header box also in protection range of the present utility model.
To sum up, this external photovoltaic counnter attack device is independent from header box by counnter attack diode, become independently anti-reverse device, while solving the circulation between solar energy electroplax group string, pouring in down a chimney problem, also solve the problem that header box internal heat generation is too high, make the operating efficiency of header box and counnter attack diode be obtained for raising.And this external photovoltaic counnter attack device outdoor installation and easy to maintenance, and water proof and dust proof antistatic.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various change, combination and change.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (10)
1. an external photovoltaic counnter attack device, is characterized in that, comprises the package casing (1) leading to two terminals (14), and is arranged at least two counnter attack diodes in described package casing (1);
The side of described package casing (1) is provided with the first radiated rib group (11) and the second radiated rib group (12), described package casing (1) is also provided with the bolt hole (13) for being fixed on by described external photovoltaic counnter attack device on header box, described bolt hole (13) runs through end face and the bottom surface of described package casing (1);
Described first radiated rib group (11) and described second radiated rib group (12) include perpendicular to multiple radiated rib on described package casing (1) direction, bottom surface.
2. external photovoltaic counnter attack device according to claim 1, it is characterized in that, described package casing (1) is rectangular block shape.
3. external photovoltaic counnter attack device according to claim 2, is characterized in that, described first radiated rib group (11) and corresponding being arranged on the side of described package casing of rectangular block shape of described second radiated rib group (12).
4. external photovoltaic counnter attack device according to claim 1, is characterized in that, described package casing (1) is the package casing adopting magnesium-aluminium alloy material to make.
5. external photovoltaic counnter attack device according to claim 1, is characterized in that, two terminals (14) of described package casing (1) are connected with photovoltaic connector (3) respectively by wire (2).
6. external photovoltaic counnter attack device according to claim 5, is characterized in that, described wire (2) is the wire adopting multiply copper core and cross-linking polyethylene materials to make.
7. external photovoltaic counnter attack device according to claim 5, is characterized in that, described photovoltaic connector (3) is for ease of the TUV certification photovoltaic connector with solar energy electroplax and the grafting of header box interface.
8. external photovoltaic counnter attack device according to claim 1, is characterized in that, also comprising the thermal grease part for sealing described package casing and epoxy resin part.
9. a photovoltaic plant convergence system, is characterized in that, comprises multiple row solar energy electroplax tandem and header box, and the external photovoltaic counnter attack device described in multiple any one of claim 1 to 8; Described multiple external photovoltaic counnter attack device is all arranged on the outside of described header box.
10. photovoltaic plant convergence system according to claim 9, is characterized in that, also comprises multiple set bolt; Each described set bolt matches with corresponding described bolt hole (13), each described external photovoltaic counnter attack device is fixed on the side of described header box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636054.2U CN204119148U (en) | 2014-10-29 | 2014-10-29 | A kind of external photovoltaic counnter attack device and photovoltaic plant convergence system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636054.2U CN204119148U (en) | 2014-10-29 | 2014-10-29 | A kind of external photovoltaic counnter attack device and photovoltaic plant convergence system |
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| CN204119148U true CN204119148U (en) | 2015-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040200A (en) * | 2017-06-06 | 2017-08-11 | 高晶石 | A kind of photovoltaic special DC anti-reverse device |
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2014
- 2014-10-29 CN CN201420636054.2U patent/CN204119148U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040200A (en) * | 2017-06-06 | 2017-08-11 | 高晶石 | A kind of photovoltaic special DC anti-reverse device |
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| GR01 | Patent grant |