CN201821282U

CN201821282U - Photovoltaic inverter mounting structure

Info

Publication number: CN201821282U
Application number: CN201020520558XU
Authority: CN
Inventors: 许迎锋; 焦道海
Original assignee: Changzhou Giantion Optoelectronics Industry Development Co Ltd
Current assignee: Changzhou Giantion Optoelectronics Industry Development Co Ltd
Priority date: 2010-09-08
Filing date: 2010-09-08
Publication date: 2011-05-04
Anticipated expiration: 2020-09-08

Abstract

A photovoltaic inverter mounting structure comprises n inverter unit power devices, IGBT (insulated gate bipolar translator) modules, fuses, capacitor banks, busbar boards and driving boards. Each inverter unit power device includes an electromagnetic shielding case, a fan, a radiator and a base; the fans are respectively fixed to the front ends of the respective bases; the radiators are respectively fixed to the rear ends of the respective bases; each air inlet of the respective fan is respectively communicated with a radiating groove at one end of the corresponding radiator; and the electromagnetic shielding cases are respectively fixed to the upper sides of the radiators. The IGBT modules, the fuses, the capacitor banks, the busbar boards and the driving boards are all mounted in the respective electromagnetic shielding cases; the busbar boards of the respective capacitor banks are provided with respective connecting supports; the connecting supports extending out of the respective electromagnetic shielding cases are connected by a connecting copper bar; and the nth inverter unit power device is provided with an outlet copper bar and is led out of the nth electromagnetic shielding case. The photovoltaic inverter has the advantages of fine radiating conditions, compact structure, fine quality, high reliability and capability of effectively preventing electromagnetic interference among devices.

Description

The photovoltaic DC-to-AC converter mounting structure

Technical field

The utility model belongs to the photovoltaic DC-to-AC converter field, relates to a kind of high-power photovoltaic DC-to-AC converter, particularly a kind of mounting structure of the photovoltaic DC-to-AC converter of being made up of a plurality of inversion unit power devices.

Background technology

Along with the extensive use of solar power plant, the generating scale in power station is increasing, do not wait from tens kilowatts to the hundreds of megawatt, the present photovoltaic DC-to-AC converter that uses, adopt the combination of several IGBT modules and driver circuit plate after, install concentratedly in a control cubicle.High-power photovoltaic DC-to-AC converter is very high to the requirement of device and heat radiation, requirement has good radiating condition, requiring can not have bigger electromagnetic interference between device and the device, if use existing mounting arrangement, the one, there is not good ventilation and heat condition, the 2nd, be combined in IGBT module and drive plate in the several inversion unit power devices in the control cubicle, electromagnetic interference is big each other, greatly reduces the reliability and the result of use of photovoltaic DC-to-AC converter.For service quality and the reliability that improves photovoltaic DC-to-AC converter, require to select a kind of scientific and reasonable layout, provide radiating condition good, can effectively prevent electromagnetic interference between device, compact conformation, the photovoltaic DC-to-AC converter mounting structure that quality is good, reliability is high.

Summary of the invention

The purpose of this utility model be to provide a kind of radiating condition good, can effectively prevent electromagnetic interference between device, compact conformation, the photovoltaic DC-to-AC converter mounting structure that quality is good, reliability is high.

Realize that the above-mentioned purpose technical scheme is: a kind of photovoltaic DC-to-AC converter mounting structure, comprise n inversion unit power device, each inversion unit power device includes an electro-magnetic shielding cover, a blower fan, a radiator and a base; Each blower fan is separately fixed at the front end of base separately, and each radiator is separately fixed at the rear end of base separately, and the air inlet of each blower fan is connected with the radiating groove of corresponding radiator one end respectively, and each electro-magnetic shielding cover is separately fixed at the top of each radiator; Each inversion unit power device also comprises IGBT module, fuse, electric capacity combination, bus bar plate and drive plate, and IGBT module, fuse, electric capacity combination, bus bar plate and drive plate are installed in the electro-magnetic shielding cover of each inversion unit power device; Each IGBT module and fuse are fixed on the upper surface of each radiator, each drive plate is fixed on the middle part of each IGBT module, each electric capacity combination is arranged on the top of each IGBT module, the bus bar plate of each electric capacity combination all has connection support separately, each connects support stretches out in electro-magnetic shielding cover separately, and is connected by connecting copper bar.N inversion unit power device in n inversion unit power device has the outlet copper bar, and the outlet copper bar is drawn from n electro-magnetic shielding cover.

The utlity model has following advantage: photovoltaic DC-to-AC converter can be combined by a plurality of inversion unit power devices, also can use separately by an inversion unit power device, each inversion unit power device all has radiator and blower fan, the radiating groove of radiator links to each other with air inlet, forced heat radiation, radiating effect is remarkable; Each inversion unit power device is equipped with electro-magnetic shielding cover, can effectively prevent electromagnetic interference between device, and this photovoltaic DC-to-AC converter mounting structure can be with solar power station design scale independent assortment, compact conformation, and quality is good, reliability is high.

Description of drawings

Fig. 1 is a schematic perspective view of the present utility model;

Fig. 2 is that master of the present utility model looks cross-sectional schematic;

Fig. 3 is the structural representation behind n inversion unit power device disengaging section electro-magnetic shielding cover n-1 and the blower fan n-2;

Fig. 4 is the schematic perspective view of the photovoltaic DC-to-AC converter that is combined into by 3 inversion unit power devices.

Embodiment

The embodiment that provides below in conjunction with accompanying drawing does explanation in further detail to the utility model.

As shown in Figure 1, a kind of photovoltaic DC-to-AC converter mounting structure, comprise n inversion

unit power device

1,2 ... n, each inversion

unit power device

1,2 ... n include electro-magnetic shielding cover 1-1, a 2-1 ... n-1, blower fan 1-2, a 2-2 ... n-2, radiator 1-3, a 2-3 ... n-3 and base 1-4, a 2-4 ... n-4; Each blower fan 1-2,2-2, ... n-2 is separately fixed at base 1-4 separately, 2-4, ... the front end of n-4, each radiator 1-3,2-3, ... n-3 is separately fixed at base 1-4 separately, 2-4, ... the rear end of n-4, each blower fan 1-2,2-2, ... the air inlet 1-2-1 of n-2,2-2-1, ... n-2-1 respectively with corresponding radiator 1-3,2-3, ... the radiating groove 1-3-1 of n-3 one end, 2-3-1, ... n-3-1 is connected, each electro-magnetic shielding cover 1-1,2-1, ... n-1 is separately fixed at each radiator 1-3,2-3, ... the top of n-3;

N inversion

unit power device

1,2 ... n inversion unit power device n among the n has outlet copper bar B, and outlet copper bar B draws from n electro-magnetic shielding cover n.

As shown in Figure 2, each inversion

unit power device

1,2, ... n also comprises IGBT module 1-5,2-5, ... n-5, fuse 1-6,2-6, ... n-6, electric capacity combination 1-7,2-7, ... n-7, bus bar plate 1-8,2-8, ... n-8 and drive plate 1-9,2-9, ... n-9, IBT module 1-5,2-5, ... n-5, fuse 1-6,2-6, ... n-6, electric capacity combination 1-7,2-7, ... n-7, bus bar plate 1-8,2-8, ... n-8 and drive plate 1-9,2-9, ... .n-9 is installed in each inversion

unit power device

1,2, ... the electro-magnetic shielding cover 1-1 of .n, 2-1, ... in the n-1; Each IGBT module 1-5,2-5, ... n-5 and fuse 1-6,2-6, ... n-6 is fixed on each radiator 1-3,2-3, ... the upper surface of n-3, each drive plate 1-9,2-9, ... n-9 is fixed on each IGBT module 1-5,2-5, ... the middle part of n-5, each electric capacity combination 1-7,2-7, ... n-7 is arranged on each IGBT module 1-5,2-5, ... the top of n-5, each electric capacity combination 1-7,2-7, ... the bus bar plate 1-8 of n-7,2-8, ... n-8 all has connection support 1-10 separately, 2-10, ... n-10, each connects support 1-10,2-10, ... n-10 is from separately electro-magnetic shielding cover 1-1,2-1, ... stretch out in the n-1, and be connected by connecting copper bar A.

As shown in Figure 3, n inversion unit power device n comprises IGBT module n-5, fuse n-6, electric capacity combination n-7, bus bar plate n-8 and drive plate n-9, and IGBT module n-5, fuse n-6, electric capacity combination n-7, bus bar plate n-8 and drive plate n-9 are installed in the electro-magnetic shielding cover n-1 of this inversion unit power device n; IGBT module n-5 and fuse n-6 are fixed on the upper surface of each radiator n-3, drive plate n-9 is fixed on the middle part of each IGBT module n-5, electric capacity combination n-7 is arranged on the top of each IGBT module n-5, the bus bar plate n-8 of electric capacity combination n-7 has and connects support n-10, connects support n-10 and stretches out in electro-magnetic shielding cover n-1.

As shown in Figure 4, a kind of photovoltaic DC-to-AC converter mounting structure, comprise 3 inversion unit power devices, each inversion

unit power device

1,2,3 includes electro-magnetic shielding cover 1-1, a 2-1,3-1, blower fan 1-2, a 2-2,3-2, radiator 1-3, a 2-3,3-3 and base 1-4, a 2-4,3-4; Each blower fan 1-2,2-2,3-2 are separately fixed at base 1-4,2-4 separately, the front end of 3-4, each radiator 1-3,2-3,3-3 are separately fixed at base 1-4,2-4 separately, the rear end of 3-4, air inlet 1-2-1, the 2-2-1 of each blower fan 1-2,2-2,3-2,3-2-1 are connected with radiating groove 1-3-1,2-3-1, the 3-3-1 of corresponding radiator 1-3,2-3,3-3 one end respectively, and each electro-magnetic shielding cover 1-1,2-1,3-1 are separately fixed at the top of each radiator 1-3,2-3,3-3; Connect support 1-10,2-10,3-10 and in separately electro-magnetic shielding cover 1-1,2-1,3-1, stretch out, and be connected by connecting copper bar 4; The 3rd inversion unit power device 3 has outlet copper bar 5, and outlet copper bar 5 is drawn from electro-magnetic shielding cover 3-1.

Claims

1. photovoltaic DC-to-AC converter mounting structure, comprise n inversion unit power device (1,2 ... n), it is characterized in that:

A, each inversion unit power device (1,2 ... n) include an electro-magnetic shielding cover (1-1,2-1 ... n-1), blower fan (1-2,2-2 ... n-2), radiator (1-3,2-3 ... n-3) and base (1-4,2-4 ... n-4); Each blower fan (1-2,2-2, ... n-2) be separately fixed at separately base (1-4,2-4, ... front end n-4), each radiator (1-3,2-3, ... n-3) be separately fixed at separately base (1-4,2-4, ... rear end n-4), each blower fan (1-2,2-2, ... air inlet (1-2-1 n-2), 2-2-1, ... n-2-1) respectively with corresponding radiator (1-3,2-3, ... the n-3) radiating groove (1-3-1 of an end, 2-3-1, ... n-3-1) be connected each electro-magnetic shielding cover (1-1,2-1, ... n-1) be separately fixed at each radiator (1-3,2-3, ... top n-3);

B, each inversion unit power device (1,2, ... n) also comprise IGBT module (1-5,2-5, ... n-5), fuse (1-6,2-6, ... n-6), electric capacity combination (1-7,2-7, ... n-7), bus bar plate (1-8,2-8, ... n-8) and drive plate (1-9,2-9, ... n-9), IGBT module (1-5,2-5, ... n-5), fuse (1-6,2-6, ... n-6), electric capacity combination (1-7,2-7, ... n-7), bus bar plate (1-8,2-8, ... n-8) and drive plate (1-9,2-9, ... n-9) be installed in each inversion unit power device (1,2, ... electro-magnetic shielding cover (1-1 n), 2-1, ... n-1); Each IGBT module (1-5,2-5, ... n-5) and fuse (1-6,2-6, ... n-6) be fixed on each radiator (1-3,2-3, ... upper surface n-3), each drive plate (1-9,2-9, ... n-9) be fixed on each IGBT module (1-5,2-5, ... middle part n-5), each electric capacity combination (1-7,2-7, ... n-7) be arranged on each IGBT module (1-5,2-5, ... top n-5), each electric capacity combination (1-7,2-7, ... bus bar plate (1-8 n-7), 2-8, ... n-8) all have separately connection support (1-10,2-10, ... n-10), each connects support (1-10,2-10, ... n-10) from separately electro-magnetic shielding cover (1-1,2-1, ... stretch out n-1), and be connected by connecting copper bar (A);

C, n inversion unit power device (1,2 ... n the inversion unit power device (n) n) has outlet copper bar (B), and outlet copper bar (B) is drawn from n electro-magnetic shielding cover (n-1).