CN208508772U - A kind of IGBT module wire structures of frequency converter - Google Patents

Abstract

The utility model relates to a kind of IGBT module wire structures of frequency converter, including IGBT module and pcb board, two IGBT modules are arranged on pcb board by contact pin, the metal connecting line that the contact pin of two IGBT module opposite sides passes through in pcb board respectively is connected to the output port U, export V port and the output port W, the metal connecting line that the contact pin of the IGBT module other side passes through in pcb board respectively is connected to the driving port U, drive V port and the driving port W, two groups of contact pins that IGBT module is distributed in the width direction pass through the metal connecting line in pcb board respectively and are connected to capacitor N-port and the port capacitor P.The utility model provides a kind of new IGBT module so that IGBT module part overall structure it is simple, using convenient, to occupy PCB surface product small, the characteristics of it is big to solve original interference, jitter.

Description

A kind of IGBT module wire structures of frequency converter

Technical field

The utility model relates to a kind of six unit IGBT module wire structures of frequency converter.

Background technique

IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) was the 80's A kind of compound power electronic devices that mid-term comes out structurally is equivalent to one by MOSFET (Metal OxideSemiconductor Field Effect Transistor, Metal-oxide-semicondutor field-effect transistor) driving Thick base area BJT (Bipolar Junction Transistor, bipolar junction transistor), the existing MOSFET's of IGBT is fast Fast response, high input impedance, thermal stability be good, the simple characteristic of driving circuit, also has current density height, the on-state pressure of BJT It reduces, high pressure resistant characteristic is widely used in power electronic equipment.The on/off of IGBT module is by driving mould What block was realized, the control IC (Integrated Circuit, integrated circuit) in drive module controls power supply and supplies to IGBT module Perhaps control power supply stops powering so that IGBT module is on or disconnects in circuit shape to IGBT module electricity State realizes the work of IGBT module.

There are problems for this partial circuit in the prior art: existing IGBT circuit is complicated as seen from Figure 1, and majority is using separation Element, the connection type of IGBT module are copper bar connection, cause that structure is complicated, it is big to occupy cabinet area, and complete machine interference is big, Signal transmission is unstable, and process costs are high, are unfavorable for cabinet optimized integral structure, cause the waste in integral material and space.

Summary of the invention

In order to solve the above technical problems, the purpose of the utility model is to provide a kind of wirings of the IGBT module of frequency converter Structure, this is reasonable in design, stable and reliable for performance, can promote the overall performance of frequency converter.

To achieve the goals above, the utility model uses technical solution below:

A kind of IGBT module wire structures of frequency converter, including IGBT module and pcb board, two IGBT modules pass through contact pin It is arranged on pcb board, the IGBT module is integrally in cuboid, the every side in two sides on IGBT module lower end surface along its length Two groups of contact pins, two IGBT are distributed on any side on IGBT module lower end surface in the width direction in respectively three groups of contact pins of distribution The metal connecting line that the contact pin of module opposite side passes through in pcb board respectively is connected to the output port U, output V port and the output end W Mouthful, the metal connecting line that the contact pin of the IGBT module other side passes through in pcb board respectively is connected to the driving port U, driving V port and drive The dynamic port W, the metal connecting line that two groups of contact pins that IGBT module is distributed in the width direction pass through respectively in pcb board are connected to capacitor N Port and the port capacitor P.

As a preferred solution: the spacing between three groups of contact pins that the IGBT module is arranged along its length is identical, IGBT There are gaps between two groups of contact pins that module is arranged in the width direction, and two groups of contact pins are located in IGBT module width direction side Portion.

The utility model provides a kind of new IGBT module, by the integrated improvement of original IGBT module and passes through contact pin Connection on circuit boards, eliminates originally in such a way that copper piece connects, so that IGBT module part overall structure is simple, application Conveniently, the characteristics of occupancy PCB surface product is small, solves original interference greatly, jitter.

Utility model compared with prior art, has the following advantages that and effect: structure is simple, reliable performance, for entire The structure of converter circuit is more reasonable, and driving circuit is regular size, without change, reduces the time spent by circuit. The module connection type of the utility model is simple and reliable, and integration degree is high, in such a way that contact pin is connected to circuit board, significantly The reliability of circuit connection is increased, and greatly reduces the interference of circuit connection, so that signal transmitting is more stable Reliably, reduce a series of problem such as electromagnetic interference.

Detailed description of the invention

Fig. 1 is original IGBT module connection type

Fig. 2 is the IGBT module in the utility model embodiment in frequency converter.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

A kind of IGBT module wire structures of frequency converter as shown in Figure 2, including IGBT module 2 and pcb board 1, two IGBT module 2 is arranged on pcb board 1 by contact pin, and it is in cuboid that the IGBT module 2 is whole, on 2 lower end surface of IGBT module The every side in two sides along its length is distributed three groups of contact pins, on any side on 2 lower end surface of IGBT module in the width direction point Two groups of contact pins are furnished with, the contact pin of two 2 opposite sides of IGBT module passes through the metal connecting line 3 in pcb board 1 respectively and is connected to output The port U, output V port and the output port W, the contact pin of 2 other side of IGBT module pass through the company of the metal connecting line 3 in pcb board 1 respectively The driving port U, driving V port and the driving port W, two groups of contact pins that IGBT module 2 is distributed in the width direction are connected to pass through respectively Metal connecting line 3 in pcb board 1 is connected to capacitor N-port and the port capacitor P.

The spacing between three groups of contact pins that the IGBT module 2 is arranged along its length is identical, and IGBT module 2 is along width There are gaps between two groups of contact pins of direction setting, and two groups of contact pins are located at the middle part of 2 width direction side of IGBT module.

The IGBT module of the utility model further integrates on the basis of original and improving performance, by original 3 small moulds Block is integrated into 2 modules, reduces module number and is fixed on pcb board by way of with contact pin, so that IGBT module Between connection can be realized by pcb board cabling, instead of original copper piece connection type.Such improved procedure can be big The big reliability for improving module connection, reduces the interference of signal transmitting, the electrical safety performance of the circuit entirety of raising, and Material cost is reduced, technique is beautiful, and integrated circuit layout is simple and reliable.The optimized integral structure of large machines is played Great effect.

It is especially a kind of in the integrated improvement of original module the utility model discloses a kind of IGBT module, it can make whole A converter circuit connection is simple, improves entire frequency converter electric loop security performance, promotes the module of overall performance structure.This Utility model provide it is a kind of apply simple, small in size, reliable performance, IGBT module circuit at low cost, and the utility model drops Low cost, it is compact-sized.The major advantage of the utility model is: integrated level is high, small in size, at low cost, and rest part electricity Road is general, and without excessive change, strong antijamming capability, wave distortion is small.Reliability is higher, and isolation voltage is high, is capable of providing more Weight defencive function, peripheral cell is few, using convenient.

It should be pointed out that above embodiments are only the representative examples of the utility model.The utility model can also there are many Deformation.All essence any simple modification, equivalent change and modification to the above embodiments according to the utility model, It is considered as belonging to the protection scope of the utility model.

Claims (2)

1. a kind of IGBT module wire structures of frequency converter, it is characterised in that: including IGBT module (2) and pcb board (1), two IGBT module (2) is arranged on pcb board (1) by contact pin, and the IGBT module (2) is integrally in cuboid, IGBT module (2) The every side in two sides on lower end surface along its length is distributed three groups of contact pins, appointing in the width direction on IGBT module (2) lower end surface Two groups of contact pins are distributed on side in meaning, and the contact pin of two IGBT module (2) opposite sides passes through the metal in pcb board (1) respectively Line (3) is connected to the output port U, output V port and the output port W, the contact pin of IGBT module (2) other side and passes through respectively Metal connecting line (3) in pcb board (1) is connected to the driving port U, driving V port and the driving port W, and IGBT module (2) is along width Two groups of contact pins of directional spreding pass through the metal connecting line (3) in pcb board (1) respectively and are connected to capacitor N-port and the port capacitor P.

2. a kind of IGBT module wire structures of frequency converter according to claim 1, it is characterised in that: the IGBT module (2) spacing between three groups of contact pins being arranged along its length is identical, and IGBT module (2) be arranged in the width direction two groups are inserted There are gaps between needle, and two groups of contact pins are located at the middle part of IGBT module (2) width direction side.