CN203104258U

CN203104258U - Single current transformer with open structure

Info

Publication number: CN203104258U
Application number: CN 201320111612
Authority: CN
Inventors: 袁莹莹; 李洁; 季婷婷
Original assignee: Nari Technology Co Ltd
Current assignee: Nari Technology Co Ltd
Priority date: 2013-03-12
Filing date: 2013-03-12
Publication date: 2013-07-31
Anticipated expiration: 2023-03-12

Abstract

The utility model relates to a single current transformer with an open structure. The single current transformer comprises a substrate as well as an IGBT (Insulated Gate Bipolar Translator) module, a capacitor, an absorptive capacitor, a cooling hose and an alternating-current output busbar, which are arranged on the substrate. The single current transformer adopts a novel structure form, a current equalizing busbar design with a T-shaped bending structure is additionally arranged on an alternating-current circuit, and therefore the problem that a current non-equalizing phenomenon of an existing single current transformer is remarkable can be solved, and the stress caused by operation of the current transformer is eliminated. The single current transformer is convenient to process, simple and easy to disassemble and assemble and beneficial to heat dissipation of elements, such as the IGBT module and the capacitors as the open structure is adopted; the alternating-current circuit, a direct-current circuit and a water route of the single current transformer are flexible for wire outgoing and can be suitable for position changes of different host interfaces of fans; and in addition, a lifting hand hole and a bidirectional support frame structure are designed and can be vertically or horizontally arranged, and therefore convenience is provided for assembly, disassembly, transportation and inspection.

Description

A kind of monomer current transformer of Open architecture

Technical field

The utility model belongs to the Semiconductor Converting Technology field, is specifically related to a kind of monomer current transformer of Open architecture.

Background technology

At present, powerful current transformer generally adopts in the mode of single current transformer brachium pontis as a power unit module, connects by module-external to combine.Existing monomer current transformer adopts case structure, exists radiating efficiency not high, and processing dismounting efficient is low, and alternating current-direct current outlet underaction, uneven flow phenomenon obviously wait not enough.

The utility model content

In order to overcome the deficiency of existing closed monomer current transformer, the utility model provides a kind of monomer current transformer of Open architecture, this monomer current transformer adopts the innovation structure form, increases designs such as current-sharing copper bar in alternating current circuit, can solve the problem that existing monomer current transformer exists.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of monomer current transformer of Open architecture comprises installation base plate and is installed in IGBT module, electric capacity, absorption electric capacity, the cooling tube on the installation base plate and exchanges output and arranges; Described IGBT module is fixed on the installation base plate by the module hold-down nut, and the control loop device is installed on the IGBT module; The both sides up and down of described IGBT module respectively are fixed with a cable binding fixed mount, are used to put in order inlet wire and outlet; Described electric capacity is fixed by capacitor clamp and is linked to each other with DC B USBAR device; Described cooling tube has two, is fixed on the both sides up and down of installation base plate by the cooling tube fixture, and a termination of cooling tube has the cooling water pipe bent sub, is used to introduce cooling water, and the other end is connected to the cooling water pipe straight joint, is used to discharge cooling water; Described interchange output row is fixed on and exchanges on the output row support; Described IGBT module is exported between the row with interchange and is connected by AC side current-sharing row, and the leading-out terminal that an end is fixed on IGBT module AC side is arranged in the AC side current-sharing, and an end is connected and exchanges in the row of output.

Described AC side current-sharing row adopts T type bending structure.

Aforementioned electric has 4-8, and absorbing electric capacity has 3-4.

Go out before aforementioned cooling tube has and after go out two kinds of outlet methods.

Go out on aforementioned interchange output row has and under go out two kinds of outlet methods.

The aforementioned monomer current transformer also has current transformer carriage and current transformer rack, as the support of vertical placement of monomer current transformer or horizontal positioned.

The upper edge of aforementioned installation base plate has 2 runway shapes and lifts hand hole, and a side promotes when being convenient to work and push-and-pull monomer current transformer along having 2 runway shape push-and-pull hand holes.

Aforementioned IGBT modular belt water-filled radiator.

Compared with prior art, the beneficial effect that the utlity model has is:

1) the utility model adopts Open architecture, helps element radiating on the one hand, and dismounting is easy on the one hand, not only has economy, has more improved the operating efficiency of processing process;

2) interchange, direct current and water route outlet are flexible, can adapt to different blower fan host interface change in location;

3) the AC side current-sharing row of T type bending structure has been adopted in the alternating current circuit design, can avoid preferably because vertical range does not wait the uneven flow phenomenon that causes;

4) the compact in design volume is little, is convenient to be installed in the small space; Field stripping, installation hommization.

Description of drawings

Fig. 1 is the structural representation of the monomer current transformer of Open architecture of the present utility model;

Fig. 2 is existing closed monomer converter structure schematic diagram;

Fig. 3 is for going out, exchanges the monomer converter structure schematic diagram that goes out on the output row behind the cooling tube of the present utility model;

Fig. 4 is for going out, exchange the monomer converter structure schematic diagram that output row goes out down before the cooling tube of the present utility model;

Fig. 5 is installed in the structural representation of pusher side/net side for three-phase monomer current transformer of the present utility model;

Fig. 6 is that pusher side of the present utility model/net side three-phase monomer current transformer is installed in the structural representation of rack;

Fig. 7 is an AC side current-sharing row scheme of installation of the present utility model;

Fig. 8 is an AC side current-sharing row structural representation of the present utility model;

Fig. 9 vertically places schematic diagram for monomer current transformer of the present utility model;

Figure 10 is a monomer current transformer horizontal positioned bottom schematic view of the present utility model;

Figure 11 is that the hand hole of monomer current transformer of the present utility model is placed schematic diagram.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

As shown in Figure 1, monomer current transformer of the present utility model adopts Open architecture, comprises installation base plate 1 and be installed in 3,4 absorptions of 2,6 electric capacity of IGBT module electric capacity 4, the cooling tube 9 on the installation base plate 1 and exchange output arranging 12; The IGBT module has water-filled radiator, IGBT module 2 is fixed on the installation base plate 1 by module hold-down nut 18, control loop device 6 is installed on the IGBT module 2, the both sides up and down of IGBT module 2 respectively are fixed with a cable binding fixed mount 15, be used to put in order inlet wire and outlet, electric capacity 3 is fixed by capacitor clamp 5 and is linked to each other with DC B USBAR device 17, cooling tube 9 has two, be fixed on the both sides up and down of installation base plate 1 by cooling tube fixture 14, one termination of cooling tube 9 has cooling water pipe bent sub 7, be used to introduce cooling water, the other end is connected to cooling water pipe straight joint 8, be used to discharge cooling water, exchange output row 12 and be fixed on and exchange on the output row support 11, IGBT module 2 is arranged 13 by the AC side current-sharing between the output row 12 and is connected with exchanging.

Compared to the monomer current transformer (as Fig. 2) of closed, the utility model monomer current transformer adopts Open architecture, like this, helps element radiating on the one hand, as IGBT and electric capacity; Topology layout is simple and clear on the one hand, and dismounting is easy, not only has economy, has more improved the operating efficiency of processing process.

As shown in Figure 3 and Figure 4, exchange output row 12 and can change upper and lower two kinds of outlet methods according to client's design requirement, go out before cooling tube 9 can be changed as required and after go out two kinds of outlet methods.This design can reach the variation of circuit and water route design by the variation of simple structural member mounting means, thereby can be suitable for the design of pusher side, net side and water route interface position difference that different wind-powered electricity generation main frame producer proposes.

As shown in Figure 7 and Figure 8, AC side current-sharing row 13 of the present utility model adopts T type bending structure, and an end is fixed on 4 leading-out terminals of IGBT module 2 AC side, and an end is connected and exchanges output row 12.The monomer current transformer exchanges output row 12 and goes out or go out down under the situation of output current last, 4 leading-out terminals of IGBT module 2 AC side do not wait to exchanging output row 12 vertical ranges, cause the phenomenon of not current-sharing apparent in view, the electric current that design is come out 4 leading-out terminals of IGBT module 2 AC side with T type bending AC side current-sharing row 13 is flowed to the flex area of T type, and then by exchanging output row 12 outflows, can avoid preferably because vertical range does not wait the uneven flow phenomenon that causes.In addition, because IGBT module 2 and exchanging is exported row 12 and is and is rigidly fixed on the installation base plate 1, cause IGBT module 2 to be rigidly connected with exchanging to exist between the output row 12, if use hard copper row, prestressing force can inevitably appear in the current transformer running, cause the copper bar heating, even burn out copper bar and device, T type bending current-sharing row is used in design, increases the water conservancy diversion area, can adopt the copper coin material of thickness less (this example is 2mm), and in its bending part employing annealing in process, increase the elasticity of material, guarantee that it connects effectively simultaneously, eliminates the stress that the current transformer operation causes.

The current transformer rack generally is placed at the bottom of the wind power generator tower, or even in the cabin, because deposit position is narrow and small, general main frame producer can require the converter structure compactness, and spatial volume is limited.As shown in Figure 5, monomer current transformer overall volume of the present utility model: the dark * height=140mm*626mm*490mm of long *, A, B, C three-phase monomer current transformer 20 places machine/net side converter weld holder 19, and be fixed on the current transformer slide block 21, machine/net side converter weld holder also is provided with DC master row carriage 22 and direct current copper bar 23 in the outlet side of cooling tube, DC master row carriage 22 is used for fixing DC B USBAR device, direct current copper bar 23 is used to draw direct current, pusher side/net side A, B, C three-phase monomer current transformer can be placed in the prestige figure rack TS8608.560 rack (volume: the dark * height of long *=600mm*800mm*2000mm) as shown in Figure 6, the utility model is stronger for the rack applicability, and satisfies the different length and width high requests of the current transformer profile of main frame producer proposition easily.

Monomer current transformer weight is bigger, and under assembling, check or the situation of trouble shooting at the scene, there are certain difficulty in artificial installation, dismounting.Monomer current transformer of the present utility model is provided with current transformer carriage 10 and current transformer rack 16, and it is vertically placed and horizontal positioned, referring to Fig. 9 and Figure 10, guarantees that the placement when it assembles, dismantles, transports and checks is stable in factory.In addition, the runway shape that has 2 80mm*30mm in the upper edge of installation base plate 1 lifts 24, one sides of hand hole along the runway shape push-and-pull hand hole 25 that has 2 80mm*30mm, referring to Figure 11, is convenient to the staff in the assembly and disassembly process, to its lifting and push-and-pull.

Claims

1. the monomer current transformer of an Open architecture is characterized in that: comprise installation base plate and be installed in IGBT module, electric capacity, absorption electric capacity, the cooling tube on the installation base plate and exchange output and arrange; Described IGBT module is fixed on the installation base plate by the module hold-down nut, and the control loop device is installed on the IGBT module; The both sides up and down of described IGBT module respectively are fixed with a cable binding fixed mount, are used to put in order inlet wire and outlet; Described electric capacity is fixed by capacitor clamp and is linked to each other with DC B USBAR device; Described cooling tube has two, is fixed on the both sides up and down of installation base plate by the cooling tube fixture, and a termination of cooling tube has the cooling water pipe bent sub, is used to introduce cooling water, and the other end is connected to the cooling water pipe straight joint, is used to discharge cooling water; Described interchange output row is fixed on and exchanges on the output row support; Described IGBT module is exported between the row with interchange and is connected by AC side current-sharing row, and the leading-out terminal that an end is fixed on IGBT module AC side is arranged in the AC side current-sharing, and an end is connected and exchanges in the row of output.

2. the monomer current transformer of a kind of Open architecture according to claim 1 is characterized in that: described AC side current-sharing row employing T type bending structure.

3. the monomer current transformer of a kind of Open architecture according to claim 1 is characterized in that: described electric capacity has 4-8, and absorbing electric capacity has 3-4.

4. the monomer current transformer of a kind of Open architecture according to claim 1 is characterized in that: go out before described cooling tube has and after go out two kinds of outlet methods.

5. the monomer current transformer of a kind of Open architecture according to claim 1 is characterized in that: go out on described interchange output row has and under go out two kinds of outlet methods.

6. the monomer current transformer of a kind of Open architecture according to claim 1, it is characterized in that: described monomer current transformer also has current transformer carriage and current transformer rack, vertically places or the support of horizontal positioned as the monomer current transformer.

7. the monomer current transformer of a kind of Open architecture according to claim 1, it is characterized in that: the upper edge of described installation base plate has 2 runway shapes and lifts hand hole, a side promotes when being convenient to work and push-and-pull monomer current transformer along having 2 runway shape push-and-pull hand holes.

8. the monomer current transformer of a kind of Open architecture according to claim 1 is characterized in that: described IGBT modular belt water-filled radiator.