CN201994828U

CN201994828U - Drawer-type power unit of medium-high voltage frequency converter

Info

Publication number: CN201994828U
Application number: CN2011200340753U
Authority: CN
Inventors: 张其生; 郭度厚
Original assignee: Rongxin Power Electronic Co Ltd
Current assignee: Rongxin Power Electronic Co Ltd
Priority date: 2011-01-31
Filing date: 2011-01-31
Publication date: 2011-09-28
Anticipated expiration: 2021-01-31

Abstract

The utility model relates to a drawer-type power unit of a medium-high voltage frequency converter, which comprises a power element insulated gate bipolar transistor (IGBT), a rectifier bridge, a fault bypass module, a resistor and a capacitor, and is characterized in that the power unity as a whole is a drawer-type structure, and the power element IGBT, the rectifier bridge, the fault bypass module, the resistor are respectively arranged on a radiator of a thermal pipe. The IGBT, the rectifier bridge, the fault bypass module, the resistor and the capacitor on the circuit are respectively connected with a composite busbar. A drawer-type casing is further provided with an input interface and an output interface, the input interface, a fuse, an input wire are sequentially connected with the rectifier bridge, and the IGBT is further connected with an output wire and the output interface. Compared with the prior art, the drawer-type power unit of the medium-high voltage frequency converter has the advantages that 1) the whole body is a drawer-type structure 2) the radiator of the profile thermal pipe is good in radiation 3) the power element is uniformly arranged on the plate-shaped composite busbar, and the shielding effect is good 3) an input copper bar and an output copper bar are formed once for all 5) the power unit is connected with external connecting parts.

Description

Mesohigh frequency converter drawer type power cell

Technical field

The utility model relates to mesohigh frequency converter field, relates in particular to a kind of mesohigh frequency converter drawer type power cell.

Background technology

In the prior art, the switching cabinet of frequency converter, control cubicle, transformer case, frequency conversion power unit cabinet are independent cabinet, and its spatial placement form is to be arranged in order; Switching cabinet is connected by control line, cable respectively with control cubicle, transformer case, the frequency conversion power unit cabinet is connected by control line, cable respectively with control cubicle, transformer case, because the layout of existing structure, causes that line is long each other, staggered complicated, be not easy to the assembling maintenance; IGBT, rectifier bridge, failure bypass module, resistance constant power element all adopt conventional side connecting conductor formula to be welded on the base plate in the frequency conversion power unit cabinet, can't satisfy frequency converter modularized design requirement, inconvenient expanded application.

Summary of the invention

The purpose of this utility model provides a kind of frequency converter modularized design requirement of satisfying, and makes things convenient for the mesohigh frequency converter drawer type power cell of expanded application.

For achieving the above object, the utility model is achieved through the following technical solutions:

Mesohigh frequency converter drawer type power cell, comprise power component IGBT, rectifier bridge, the failure bypass module, resistance, electric capacity, it is characterized in that, this power cell integral body is drawer-type structure, power component IGBT, rectifier bridge, the failure bypass module, resistance is separately positioned on the heat-pipe radiator, IGBT on the circuit, rectifier bridge, the failure bypass module, resistance, electric capacity is connected with composite bus bar respectively, also be respectively equipped with input interface and output interface on the drawer type shell, input interface, fast molten, input lead is connected with rectifier bridge successively, and IGBT also is connected with output interface with output lead successively.

Described heat-pipe radiator is the section bar heat-pipe radiator.

Described input lead and output lead are respectively copper bar, have to satisfy to lay space angle and the shape that requires, and adopt the standardization one-shot forming.

Described input interface and output interface are respectively plug or socket.

Compared with prior art, the utility model has the advantages that:

1) the whole drawer-type structure that adopts, compact conformation satisfies frequency converter modularized design requirement, and the power cell of every phase configuration varying number can be produced the frequency converter of different capabilities, and highly versatile is convenient to the production reserve and the expanded application of power cell.

2) adopt the section bar heat-pipe radiator, good heat dissipation effect, the standardization member, cost is low.

3) the power component unification is arranged on the plate shaped composite bus bar, and is easy for installation regular.

4) input copper bar and output copper bar adopt a standardization moulding, satisfy space angle and shape need when laying, compactness easy for installation.

5) with frequency converter in transformer unit adopt the plug connector connected mode, assembling, easy to maintenance, layout is regular.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram;

Fig. 2 is a bottom view of the present utility model;

Fig. 3 is the power component scheme of installation.

Among the figure: the molten soon 7-input of 1-electric capacity 2-heat-pipe radiator 3-composite bus bar 4-output copper bar 5-input socket 6-copper bar 8-accessory power outlet 9-resistance 10-IGBT11-rectifier bridge 12-failure bypass module 13-drawer type shell

Embodiment

Below in conjunction with accompanying drawing technology contents of the present utility model is described in further detail.

See Fig. 1, Fig. 2, Fig. 3, it is the utility model mesohigh frequency converter drawer type power cell example structure schematic diagram, comprise power component IGBT 10, rectifier bridge 11, failure bypass module 12, resistance 9, electric capacity 1, above-mentioned power component is co-located in the drawer type shell 13, IGBT 10, rectifier bridge 11, failure bypass module 12, resistance 9 is separately positioned on the heat-pipe radiator 2, IGBT 10, rectifier bridge 11, failure bypass module 12, resistance 9, electric capacity 1 is connected with composite bus bar 3 respectively, also be respectively equipped with input socket 5 and accessory power outlet 8 on the drawer type shell 13, input socket 5, fast molten 6, input copper bar 7 is connected with rectifier bridge 11 successively, and IGBT 10 is connected with accessory power outlet 8 with output copper bar 4 successively.Plate shaped composite bus bar 3 had both provided support power component as base plate, had the effect of line again, also power component was played the effect of shielding simultaneously.

Heat-pipe radiator 2 is the section bar heat-pipe radiator, and the radiating efficiency height is drawn materials conveniently.

Drawer type shell 13 adopts input socket 5 and accessory power outlet 8 with outside the connection, and easy maintenance and installation is applicable in the mesohigh frequency converter of modularized design, and drawer type power unit is single easily can expand in multiple voltage and power grade frequency converter.

Input copper bar 7 and output copper bar 4 are one time punching molded with copper coin, have the angle and the shape in space, guarantee the quick and compact conformation of laying.

Claims

1. mesohigh frequency converter drawer type power cell, comprise power component IGBT, rectifier bridge, the failure bypass module, resistance, electric capacity, it is characterized in that, this power cell integral body is drawer-type structure, power component IGBT, rectifier bridge, the failure bypass module, resistance is separately positioned on the heat-pipe radiator, IGBT on the circuit, rectifier bridge, the failure bypass module, resistance, electric capacity is connected with composite bus bar respectively, also be respectively equipped with input interface and output interface on the drawer type shell, input interface, fast molten, input lead is connected with rectifier bridge successively, and IGBT also is connected with output interface with output lead successively.

2. mesohigh frequency converter drawer type power cell according to claim 1 is characterized in that described heat-pipe radiator is the section bar heat-pipe radiator.

3. mesohigh frequency converter drawer type power cell according to claim 1 is characterized in that described input lead and output lead are copper bar.

4. mesohigh frequency converter drawer type power cell according to claim 1 is characterized in that described input interface and output interface are respectively plug or socket.