CN202713185U

CN202713185U - IGBT full-bridge inverter module for inverter electric welder

Info

Publication number: CN202713185U
Application number: CN 201220436741
Authority: CN
Inventors: 王志勇
Original assignee: CHONGQING YINCHEN WELDING EQUIPMENT Co Ltd
Current assignee: CHONGQING YINCHEN WELDING EQUIPMENT Co Ltd
Priority date: 2012-08-30
Filing date: 2012-08-30
Publication date: 2013-01-30
Anticipated expiration: 2022-08-30

Abstract

The utility model discloses an IGBT full-bridge inverter module for an inverter electric welder. The IGBT full-bridge inverter module comprises an IGBT inverter circuit board, an IGBT full-bridge inverter circuit is integrated on the IGBT inverter circuit board, and four sets of IGBT tubes are mounted on the IGBT inverter circuit board and are symmetrically distributed on two sides of the IGBT inverter circuit board; and in addition, the power supply polarities of the two sets of IGBT tubes on one side of the IGBT inverter circuit board are the same, and the power supply polarities of the two sets of IGBT tubes on the other side of the IGBT inverter circuit board are opposite. The IGBT full-bridge inverter module for an inverter electric welder is low in cost, simple in structure, and convenient to mount, the four sets of IGBT tubes are distributed on two sides of the IGBT inverter circuit board, facilitating heat radiation, thereby ensuring safe operation of the IGBT tubes, and prolonging service life thereof.

Description

Inversion welding machine IGBT full-bridge inverting module

Technical field

The utility model relates to electric welding machine, relates in particular to a kind of inversion welding machine IGBT full-bridge inverting module.

Background technology

At present, IGBT is as high-power switch device, because its switching speed is fast, switching current is large, the little steady performance of loss, therefore, factory is general for large power inverter power sources such as inversion welding machines.

The IGBT element is sold with two kinds of patterns on market, and a kind of is to sell with the pattern of IGBT pipe, and its price is low, and the switching current of single IGBT pipe is little, generally about 60A.Another kind is to sell with the pattern of IGBT half-bridge module, it is large that IGBT half-bridge module electric current is wanted with respect to IGBT pipe, and general single electric current is about 100A-300A, but for single IGBT pipe, price and current ratio, the IGBT half-bridge module is more much bigger than the IGBT pipe.This just illustrates the inverter of producing equal-wattage, and it is much higher to adopt the making of IGBT half-bridge module to make used cost than employing IGBT pipe.

Because single IGBT pipe switching current is little, therefore, reach the switching current same with the IGBT half-bridge module, just many IGBT pipes must be installed in parallel, many single tube IGBT to be combined and form inverter circuit, just need the assembled scheme of a science, only in this way could conveniently install.

In large power inverter power source, generally all adopt full bridge inverter, therefore, if adopt the IGBT half-bridge module to make, that just needs two half-bridge modules, and such cost of manufacture is higher.And the IGBT pipe of IGBT half-bridge module generally all directly is installed on the circuit board, so also is unfavorable for the heat radiation of IGBT pipe, easily causes the IGBT pipe to damage.

In order to make the inverter circuit of high-quality low-cost, just must adopt many IGBT pipes in parallel, and it is combined into the inversion full-bridge, and to be convenient to simultaneously make and install, the purpose of this utility model just is to provide a kind of full bridge inverter module that is comprised of many IGBT pipes and other electronic devices and components.

The utility model content

For the prior art above shortcomings, the purpose of this utility model just is to provide a kind of inversion welding machine IGBT full-bridge inverting module, this modular structure is simple, easy for installation, with low cost, can dispel the heat to the IGBT pipe easily, thus the working life of assurance IGBT full-bridge inverting module.

To achieve these goals, the technical solution adopted in the utility model is such: a kind of inversion welding machine IGBT full-bridge inverting module, it is characterized in that, comprise IGBT inverter circuit plate, be integrated with the IGBT full bridge inverter on the described IGBT inverter circuit plate, at IGBT inverter circuit plate four groups of IGBT pipe groups are installed, described four groups of IGBT pipe groups are symmetrically distributed in IGBT inverter circuit plate both sides; And the power supply polarity of two groups of IGBT pipe groups of IGBT inverter circuit plate one side is identical, and the power supply polarity of two groups of IGBT pipe groups of IGBT inverter circuit plate opposite side is opposite.

The IGBT full bridge inverter is as a kind of technology of maturation, in every field, be widely used, this programme is by being integrated into the IGBT full bridge inverter on the circuit board, and cooperate the IGBT pipe to form IGBT full-bridge inverting module, not only can satisfy people's demand, owing to adopt the IGBT pipe, thereby more can reduce production costs.And four groups of IGBT pipe components are distributed in IGBT inverter circuit plate both sides, the heat radiation of being more convenient for, thus the safe operation of assurance IGBT pipe prolongs its life-span.

Further, described IGBT pipe group comprises at least one IGBT pipe; Different according to power demand, every group of IGBT pipe group can be selected many IGBT pipes, thereby satisfies people's demand.

Further, described IGBT pipe is three; Make the more powerful of IGBT full-bridge inverting module, to satisfy people's demand.

Compared with prior art, the utility model has the advantage of: with low cost, simple in structure, easy for installation, four groups of IGBT pipe components are distributed in IGBT inverter circuit plate both sides, the heat radiation of being more convenient for, thus the safe operation of assurance IGBT pipe prolongs its life-span.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment: referring to Fig. 1, a kind of inversion welding machine IGBT full-bridge inverting module, comprise IGBT inverter circuit plate 1, be integrated with the IGBT full bridge inverter on the described IGBT inverter circuit plate 1, and be welded with the electronic component that inverter circuit needs, comprise that inversion drives resistance etc. with electric capacity, piezo-resistance and IGBT, at IGBT inverter circuit plate 1 four groups of IGBT pipe groups are installed, described IGBT pipe group comprises at least one IGBT pipe 2.Described four groups of IGBT pipe groups are symmetrically distributed in IGBT inverter circuit plate both sides; And, the power supply polarity of two groups of IGBT pipe groups of IGBT inverter circuit plate one side is identical, and the power supply polarity of two groups of IGBT pipe groups of IGBT inverter circuit plate opposite side is opposite, and installation, connection etc. are more convenient, and can effectively avoid the generation because of short circuit, be convenient to maintenance management.Four groups of IGBT pipe groups are installed on the both sides of IGBT inverter circuit plate, the IGBT pipe is disperseed more, cooperate special-purpose heat abstractor, can be rapidly with dissipation of heat, avoiding concentrating the IGBT pipe that causes because of heat often is burned, simultaneously, adopt this structure, can reduce to greatest extent production and the use cost of IGBT full-bridge inverting module.

During concrete the making, described IGBT inverter circuit plate is rectangle, and four groups of IGBT pipe groups are symmetrically distributed in the both sides of IGBT inverter circuit plate, and every group of IGBT pipe group comprises three IGBT pipes 2; Make the more powerful of IGBT full-bridge inverting module, to satisfy people's demand.Be attached with 3, one on two direct current input wires copper posts at an end of IGBT inverter circuit plate and be used for connecing the DC input voitage positive pole, another is used for connecing the DC input voitage negative pole; Two high-frequency alternating current output connection copper posts 4 also are installed at the middle part of IGBT inverter circuit plate; IGBT full-bridge inverting module by this technical scheme making, have the advantages such as cost is low, easy for installation, external cabling is few, as long as galvanic positive and negative electrode is received respectively on two direct current input wires copper posts 3 on the IGBT inverter circuit plate, will export high-frequency alternating current at two high-frequency alternating current output connection copper posts 4 at IGBT inverter circuit plate middle part.

Need to prove at last, above embodiment is only in order to the technical solution of the utility model to be described but not the restriction technologies scheme, although the applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are made amendment to the technical solution of the utility model or are equal to replacement, and do not break away from aim and the scope of the technical program, all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. an inversion welding machine is with IGBT full-bridge inverting module, it is characterized in that: comprise IGBT inverter circuit plate, be integrated with the IGBT full bridge inverter on the described IGBT inverter circuit plate, at IGBT inverter circuit plate four groups of IGBT pipe groups are installed, described four groups of IGBT pipe groups are symmetrically distributed in IGBT inverter circuit plate both sides; And the power supply polarity of two groups of IGBT pipe groups of IGBT inverter circuit plate one side is identical, and the power supply polarity of two groups of IGBT pipe groups of IGBT inverter circuit plate opposite side is opposite.

2. inversion welding machine according to claim 1 is with IGBT full-bridge inverting module, and it is characterized in that: described IGBT pipe group comprises at least one IGBT pipe.

3. inversion welding machine according to claim 2 is with IGBT full-bridge inverting module, and it is characterized in that: described IGBT pipe is three.