CN107863241B - Inductance assembly for distributed photovoltaic system - Google Patents
Inductance assembly for distributed photovoltaic system Download PDFInfo
- Publication number
- CN107863241B CN107863241B CN201711259724.8A CN201711259724A CN107863241B CN 107863241 B CN107863241 B CN 107863241B CN 201711259724 A CN201711259724 A CN 201711259724A CN 107863241 B CN107863241 B CN 107863241B
- Authority
- CN
- China
- Prior art keywords
- box
- inductor
- heat dissipation
- photovoltaic system
- distributed photovoltaic
- 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.)
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Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 23
- 238000005538 encapsulation Methods 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims 4
- 238000004806 packaging method and process Methods 0.000 claims 1
- 238000004382 potting Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/143—Inductive couplings for signals
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses an inductance component for a distributed photovoltaic system, which comprises a mounting box, wherein a potting box is arranged in the mounting box, the potting box is arranged in an overhead manner, a heat dissipation space is reserved between the bottom and side parts of the potting box and the mounting box, and the potting box is fixedly connected with the mounting box through a plurality of reinforcing ribs; one side of the encapsulation box is provided with a boost inductor, the other side of the encapsulation box is provided with an inverter inductor, and the boost inductor and the inverter inductor are encapsulated through high heat-conducting glue; a heat dissipation structure is arranged on the side wall of the encapsulation box, and a filling block is arranged between the encapsulation box and the side part of the installation box; according to the inductance component for the distributed photovoltaic system, the encapsulation box and the installation box are designed in a split mode, and the encapsulation box is arranged in an overhead mode, so that a heat dissipation space is provided, the heat dissipation efficiency during working is improved, and the temperature rise is reduced; the BOOST inductor adopts a double BOOST coupling inductor, and can reduce the ripple coefficient of the inductor current, thereby reducing the loss of the inductor and increasing the overall efficiency of the inverter.
Description
Technical Field
The present invention relates to an inductance assembly for a distributed photovoltaic system.
Background
The distributed photovoltaic system is a novel power generation and energy comprehensive utilization mode with wide development prospect, and advocates the principles of nearby power generation, nearby grid connection, nearby conversion and nearby use, so that the power generation capacity of the photovoltaic power station with the same scale can be effectively improved, and meanwhile, the problem of power loss in the process of boosting and long-distance transportation is effectively solved; the inverter of the existing distributed photovoltaic system adopts an independent boosting mode, so that the current of inductance ripple waves is large, the efficiency is low, and the existing inductance encapsulation structure cannot meet the heat dissipation requirements of high-temperature weather and high-power working states.
Disclosure of Invention
Aiming at the technical problems, the invention aims at: an inductance assembly for a distributed photovoltaic system is presented.
The technical solution of the invention is realized as follows: an inductance assembly for a distributed photovoltaic system comprises a mounting box, wherein a potting box is arranged in the mounting box, the potting box is arranged in an overhead manner, a heat dissipation space is reserved between the bottom and side parts of the potting box and the mounting box, and the potting box is fixedly connected with the mounting box through a plurality of reinforcing ribs; one side of the encapsulation box is provided with a boost inductor, the other side of the encapsulation box is provided with an inverter inductor, and the boost inductor and the inverter inductor are encapsulated through high heat-conducting glue; and a heat radiation structure is arranged on the side wall of the encapsulation box, and a filling block is further arranged between the encapsulation box and the side part of the installation box.
Preferably, the BOOST inductor is a double BOOST coupled inductor.
Preferably, the number of the reinforcing ribs is 4, the 4 reinforcing ribs uniformly separate the heat dissipation space between the mounting box and the encapsulating box, and 4 filling blocks are filled between the mounting box and the encapsulating box.
Preferably, the heat dissipation structure on the side wall of the encapsulating box is a grid structure.
Preferably, the heat dissipation structure on the side wall of the encapsulating box is a net structure.
Preferably, the heat dissipation structure on the side wall of the encapsulation box is a dense hole structure.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the inductance component for the distributed photovoltaic system, the encapsulation box and the installation box are designed in a split mode, and the encapsulation box is arranged in an overhead mode, so that a heat dissipation space is provided, the heat dissipation efficiency during working is improved, and the temperature rise is reduced; the BOOST inductor adopts a double BOOST coupling inductor, and can reduce the ripple coefficient of the inductor current, thereby reducing the loss of the inductor and increasing the overall efficiency of the inverter.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of an inductance assembly for a distributed photovoltaic system according to the present invention;
fig. 2 is a schematic top view of the packing block of the present invention.
Detailed Description
The invention is described below with reference to the accompanying drawings.
As shown in fig. 1-2, the inductance component for the distributed photovoltaic system comprises a mounting box 1, wherein a plurality of mounting holes are formed in the mounting box 1, a potting box 2 is arranged in the mounting box 1, the potting box 2 is arranged in an overhead manner, a heat dissipation space is reserved between the bottom and the side of the potting box 2 and the mounting box 1, the potting box 2 is fixedly connected with the mounting box 1 through 4 reinforcing ribs 3, and the 4 reinforcing ribs 3 uniformly separate the heat dissipation space between the mounting box 1 and the potting box 2; one side of the encapsulation box 2 is provided with a boost inductor 4, the other side is provided with an inverter inductor 5, and the boost inductor 4 and the inverter inductor 5 are encapsulated through high heat-conducting glue; the BOOST inductor 4 is a double BOOST coupling inductor, the double BOOST inductor adopts a structure common to a center column, so that the two inductors are mutually coupled on a magnetic circuit, the volume and the cost of the inductor are reduced, the ripple coefficient of the current of the inductor is greatly reduced by a mode of overlapping waveforms of the double BOOST inductor, the loss of the inductor is reduced, and the overall efficiency of the inverter is increased; be provided with heat radiation structure on the lateral wall of embedment box 2, heat radiation structure is grid, netted, intensive poroid isotructure, does not draw this specific structure in the figure, still is provided with 4 filler blocks 6 between the lateral part of embedment box 2 and mounting box 1, can also set up the groove structure on the filler block 6, is convenient for scratch filler block 6 out from the box.
During the embedment, put into filling block 6 and fill up the heat dissipation space of embedment box 2 and mounting box 1 lateral part, make filling block 6 laminating embedment box 2's lateral wall, avoid the pouring sealant to spill over from the heat radiation structure of embedment box lateral wall, accomplish the back to embedment box 2 embedment, take out filling block 6, let out the heat dissipation space, can satisfy the heat dissipation requirement of inductance at operating condition.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. An inductance assembly for a distributed photovoltaic system, characterized by: the novel packaging box comprises a mounting box (1), wherein a filling and sealing box (2) is arranged in the mounting box (1), the filling and sealing box (2) is arranged in an overhead mode, a heat dissipation space is reserved between the bottom and side parts of the filling and sealing box (2) and the mounting box (1), and the filling and sealing box (2) is fixedly connected with the mounting box (1) through a plurality of reinforcing ribs (3); one side of the encapsulation box (2) is provided with a boost inductor (4), the other side is provided with an inverter inductor (5), and the boost inductor (4) and the inverter inductor (5) are encapsulated through high heat-conducting glue; a heat dissipation structure is arranged on the side wall of the encapsulating box (2), and a filling block (6) is arranged between the encapsulating box (2) and the side part of the mounting box (1);
the BOOST inductor (4) is a double BOOST coupling inductor;
the reinforcing ribs (3) are 4, the 4 reinforcing ribs (3) uniformly separate the heat dissipation space between the mounting box (1) and the encapsulating box (2), and 4 filling blocks (6) are filled between the mounting box (1) and the encapsulating box (2).
2. The inductance assembly for a distributed photovoltaic system of claim 1, wherein: the heat dissipation structure on the side wall of the encapsulating box (2) is a grid structure.
3. The inductance assembly for a distributed photovoltaic system of claim 1, wherein: the heat dissipation structure on the side wall of the encapsulating box (2) is a net structure.
4. The inductance assembly for a distributed photovoltaic system of claim 1, wherein: the heat dissipation structure on the side wall of the encapsulating box (2) is a dense hole-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259724.8A CN107863241B (en) | 2017-12-04 | 2017-12-04 | Inductance assembly for distributed photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259724.8A CN107863241B (en) | 2017-12-04 | 2017-12-04 | Inductance assembly for distributed photovoltaic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107863241A CN107863241A (en) | 2018-03-30 |
| CN107863241B true CN107863241B (en) | 2024-04-09 |
Family
ID=61705026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711259724.8A Active CN107863241B (en) | 2017-12-04 | 2017-12-04 | Inductance assembly for distributed photovoltaic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863241B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143253A2 (en) * | 2008-05-20 | 2009-11-26 | Greenray, Inc. | An ac photovoltaic module and inverter assembly |
| CN202549584U (en) * | 2012-01-16 | 2012-11-21 | 山亿新能源股份有限公司 | Annular inductance embedment encapsulation fixing structure for photovoltaic inverter |
| CN102842417A (en) * | 2012-06-20 | 2012-12-26 | 山亿新能源股份有限公司 | Insulating structure for encapsulation of inverter inductor |
| CN104202953A (en) * | 2014-09-24 | 2014-12-10 | 广州三晶电气有限公司 | Heat dissipation device and method for photovoltaic grid-connected inverter |
| CN205725478U (en) * | 2016-04-15 | 2016-11-23 | 上能电气股份有限公司 | A kind of inverter inductor slip-off preventing mounting structure |
| CN207731799U (en) * | 2017-12-04 | 2018-08-14 | 苏州腾冉电气设备股份有限公司 | A kind of Inductive component for distributed photovoltaic system |
-
2017
- 2017-12-04 CN CN201711259724.8A patent/CN107863241B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143253A2 (en) * | 2008-05-20 | 2009-11-26 | Greenray, Inc. | An ac photovoltaic module and inverter assembly |
| CN202549584U (en) * | 2012-01-16 | 2012-11-21 | 山亿新能源股份有限公司 | Annular inductance embedment encapsulation fixing structure for photovoltaic inverter |
| CN102842417A (en) * | 2012-06-20 | 2012-12-26 | 山亿新能源股份有限公司 | Insulating structure for encapsulation of inverter inductor |
| CN104202953A (en) * | 2014-09-24 | 2014-12-10 | 广州三晶电气有限公司 | Heat dissipation device and method for photovoltaic grid-connected inverter |
| CN205725478U (en) * | 2016-04-15 | 2016-11-23 | 上能电气股份有限公司 | A kind of inverter inductor slip-off preventing mounting structure |
| CN207731799U (en) * | 2017-12-04 | 2018-08-14 | 苏州腾冉电气设备股份有限公司 | A kind of Inductive component for distributed photovoltaic system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107863241A (en) | 2018-03-30 |
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