CN202798481U - Power device used for photovoltaic inverter - Google Patents

Power device used for photovoltaic inverter Download PDF

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Publication number
CN202798481U
CN202798481U CN 201220356061 CN201220356061U CN202798481U CN 202798481 U CN202798481 U CN 202798481U CN 201220356061 CN201220356061 CN 201220356061 CN 201220356061 U CN201220356061 U CN 201220356061U CN 202798481 U CN202798481 U CN 202798481U
Authority
CN
China
Prior art keywords
power device
photovoltaic
air duct
bus bar
stack bus
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
Application number
CN 201220356061
Other languages
Chinese (zh)
Inventor
翟志华
周辉
苗亚
王彤
吴福保
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI filed Critical State Grid Corp of China SGCC
Priority to CN 201220356061 priority Critical patent/CN202798481U/en
Application granted granted Critical
Publication of CN202798481U publication Critical patent/CN202798481U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model provides a power device used for a photovoltaic inverter. The power device comprises a housing, an upper air duct, an IGBT group, a radiator, a lower air duct, a fan, a laminated busbar and a capacitor group, wherein the upper air duct, the radiator, the lower air duct and the fan are arranged successively from top to bottom. The IGBT group is fixed on the radiator; a direct current side of the IGBT group is connected with one end of the laminated busbar; the other end of the laminated busbar extends to the exterior of the housing, and is connected with a direct current end interface; and the capacitor group is located at the back portion of the laminated busbar. With the power device of the utility model adopted, the problem of electromagnetic interference of exterior components on interior components can be solved; and the power device has a favorable electromagnetic shielding effect; and the power device is advantageous in versatility, simplicity, structural simplicity, convenient installation and usage, favorable heat-dissipation effect, high reliability and low cost.

Description

A kind of power device for photovoltaic DC-to-AC converter
Technical field
The utility model belongs to technical field of new energies, is specifically related to a kind of power device for photovoltaic DC-to-AC converter.
Background technology
Photovoltaic generation more and more is subject to the attention of various countries, photovoltaic power generation technology has also had fast development thereupon, the core devices that is incorporated into the power networks of photovoltaic generation---the photovoltaic DC-to-AC converter technology also reaches its maturity, and the form of the core (PCC) power of photovoltaic DC-to-AC converter also is varied.Power device is as the core of photovoltaic DC-to-AC converter, and it is the part that direct current is converted into alternating current in photovoltaic DC-to-AC converter, the good and bad conversion efficiency that directly affects photovoltaic DC-to-AC converter of (PCC) power design.
In recent years, the power circuit of the field of power electronics of using in electronic equipment along with the requirement of the high performance of electronic equipment and miniaturization is also wished miniaturization and energy-saving, for this reason, the heat-dissipating structure of (PCC) power has just become important problem, meanwhile, (PCC) power can produce the high frequency electromagnetic radiation interference when high frequency, pulse application.
The conventional mounting structure of power device is complicated, and cost is high, changes inconvenience, and radiating effect is poor, and reliability is lower.The development of the encapsulation technology of two IGBT modular devices is compared comparatively backward on the domestic market with the overseas market.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of power device for photovoltaic DC-to-AC converter, solved the electromagnetic interference problem of external devices to internal components, had good electromagnetic shielding action, and this power device has versatility and terseness.
To achieve these goals, the utility model is taked following scheme:
A kind of power device for photovoltaic DC-to-AC converter, described device comprises shell, upper air duct, IGBT group, radiator, lower air duct, blower fan, stack bus bar and capacitance group; Described upper air duct, radiator, lower air duct and blower fan set gradually from top to bottom, described IGBT group is fixed on the described radiator, its DC side connects an end of described stack bus bar, the other end of described stack bus bar extends to the outside of described shell, and link to each other with the dc terminal interface, described capacitance group is positioned at the back of described stack bus bar.
Be respectively equipped with exhaust vent and direct current copper bar interface on the top panel of described shell and the left panel, its right panel is provided with optical fiber light current interface and handle, and its front panel is provided with fresh air inlet and AC copper-line interface.
The number of described handle is 2, and described IGBT group comprises two IGBT.
The AC of described IGBT group connects the interchange end interface by copper bar.
Described capacitance group comprises 6~20 electric capacity, and described electric capacity is connected with the copper post of stack bus bar by bolt.
Described stack bus bar comprises positive busbar, negative busbar and insulating barrier, between described positive busbar and the negative busbar, positive busbar upper surface and negative busbar lower surface be equipped with described insulating barrier.
Compared with prior art, the beneficial effects of the utility model are:
1. this power device is simple in structure, good heat dissipation effect, and reliability is higher;
2. solve the electromagnetic interference problem of external devices to internal components, had good electromagnetic shielding action;
3. this power device is modular construction, leaves the interface that links to each other with the outside, has versatility, installs and uses simply, is convenient to change;
4. this power device is provided with the IGBT group of two IGBT parallel connections, and relatively single IGBT module makes under the gross power same case and reduced material cost.
Description of drawings
Fig. 1 is the power device overall diagram for photovoltaic DC-to-AC converter;
Fig. 2 is the power device cut-away view for photovoltaic DC-to-AC converter;
Wherein, 1. shell, 2. direct current copper bar interface, 3. AC copper-line interface, 4. handle, 5. fresh air inlet, 6. exhaust vent, 7. upper air duct, 8.IGBT group, 9. radiator, 10. lower air duct, 11. blower fans, 12. stack bus bars, 13. capacitance group.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Such as Fig. 1 and Fig. 2, a kind of power device for photovoltaic DC-to-AC converter, described device comprise shell 1, upper air duct 7, IGBT group 8, radiator 9, lower air duct 10, blower fan 11, stack bus bar 12 and capacitance group 13; Described upper air duct 7, radiator 9, lower air duct 10 and blower fan 11 set gradually from top to bottom, described IGBT group 8 is fixed on the described radiator 9, its DC side connects an end of described stack bus bar 12, the other end of described stack bus bar 12 extends to the outside of described shell, and link to each other with the dc terminal interface, described capacitance group 13 is positioned at the back of described stack bus bar 12.
Be respectively equipped with exhaust vent 6 and direct current copper bar interface 2 on the top panel of described shell 1 and the left panel, its right panel is provided with optical fiber light current interface and handle 4, and its front panel is provided with fresh air inlet 5 and AC copper-line interface 3.
The number of described handle 4 is 2, and described IGBT group 8 comprises two IGBT.
The AC of described IGBT group connects the interchange end interface by copper bar.
Described capacitance group 13 comprises 6~20 electric capacity, and described electric capacity is connected with the copper post of stack bus bar 12 by bolt.
Described stack bus bar 12 comprises positive busbar, negative busbar and insulating barrier, between described positive busbar and the negative busbar, positive busbar upper surface and negative busbar lower surface be equipped with described insulating barrier.
In sum, the power device that is used for photovoltaic DC-to-AC converter that the utility model provides is simple in structure, easy to install, has versatility, and good heat dissipation effect, and reliability is higher, and cost is low.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to above-described embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (7)

1. power device that is used for photovoltaic DC-to-AC converter, it is characterized in that: described device comprises shell, upper air duct, IGBT group, radiator, lower air duct, blower fan, stack bus bar and capacitance group; Described upper air duct, radiator, lower air duct and blower fan set gradually from top to bottom, described IGBT group is fixed on the described radiator, its DC side connects an end of described stack bus bar, the other end of described stack bus bar extends to the outside of described shell, and link to each other with the dc terminal interface, described capacitance group is positioned at the back of described stack bus bar.
2. the power device for photovoltaic DC-to-AC converter according to claim 1, it is characterized in that: be respectively equipped with exhaust vent and direct current copper bar interface on the top panel of described shell and the left panel, its right panel is provided with optical fiber light current interface and handle, and its front panel is provided with fresh air inlet and AC copper-line interface.
3. the power device for photovoltaic DC-to-AC converter according to claim 2, it is characterized in that: the number of described handle is 2.
4. the power device for photovoltaic DC-to-AC converter according to claim 1 is characterized in that: described IGBT group comprises two IGBT.
5. the power device for photovoltaic DC-to-AC converter according to claim 4 is characterized in that: the AC of described IGBT group connects by copper bar and exchanges end interface.
6. the power device for photovoltaic DC-to-AC converter according to claim 1, it is characterized in that: described capacitance group comprises 6~20 electric capacity, described electric capacity is connected with the copper post of stack bus bar by bolt.
7. the power device for photovoltaic DC-to-AC converter according to claim 1, it is characterized in that: described stack bus bar comprises positive busbar, negative busbar and insulating barrier, between described positive busbar and the negative busbar, positive busbar upper surface and negative busbar lower surface be equipped with described insulating barrier.
CN 201220356061 2012-07-20 2012-07-20 Power device used for photovoltaic inverter Expired - Lifetime CN202798481U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220356061 CN202798481U (en) 2012-07-20 2012-07-20 Power device used for photovoltaic inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220356061 CN202798481U (en) 2012-07-20 2012-07-20 Power device used for photovoltaic inverter

Publications (1)

Publication Number Publication Date
CN202798481U true CN202798481U (en) 2013-03-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220356061 Expired - Lifetime CN202798481U (en) 2012-07-20 2012-07-20 Power device used for photovoltaic inverter

Country Status (1)

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CN (1) CN202798481U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026694A (en) * 2016-07-19 2016-10-12 合肥联信电源有限公司 Heat radiation apparatus for high-power inversion module of emergency power supply
CN110932567A (en) * 2019-10-29 2020-03-27 珠海格力电器股份有限公司 Main motor driver and new energy vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026694A (en) * 2016-07-19 2016-10-12 合肥联信电源有限公司 Heat radiation apparatus for high-power inversion module of emergency power supply
CN110932567A (en) * 2019-10-29 2020-03-27 珠海格力电器股份有限公司 Main motor driver and new energy vehicle

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130313

CX01 Expiry of patent term