CN209632272U - IGBT full bridge inverter plate for inversion welding machine - Google Patents

Abstract

The utility model provides a kind of IGBT full bridge inverter plate for inversion welding machine, including circuit board body and multiple groups IGBT pipe group, the circuit board body both ends have been symmetrically arranged multiple groups connecting hole, there are two direct current input wires mouths for the circuit board body top setting, there are two exchange output connection mouth for the circuit board body lower part setting, auxiliary electron component is provided in the circuit board body, conducting wire is provided in the circuit board body, the connecting hole is electrically connected in IGBT pipe, IGBT pipe group, auxiliary electron component, direct current input wires mouth connects and composes IGBT full bridge inverter with exchanging output connection mouth and pass through conducting wire respectively.The IGBT full bridge inverter plate for being used for inversion welding machine has the advantages that at low cost, good heat dissipation effect, structure are simple, easy for installation.

Description

IGBT full bridge inverter plate for inversion welding machine

Technical field

The utility model relates to a kind of IGBT full bridge inverter plates for inversion welding machine.

Background technique

IGBT is as high-power switch device, since its switching speed is fast, switching current is big, small, performance is stable etc. is lost Advantage is widely used in the large power inverter power sources such as inversion welding machine.Although IGBT single tube unit price is low, single IGBT pipe is opened Powered-down stream is small, generally in 60A or so；IGBT half-bridge module switching current is big, generally in 100A~300A or so, but IGBT half-bridge Module higher cost.In large power inverter power source, it is generally used full bridge inverter, is needed using two IGBT half-bridge moulds Block is constituted, and such cost of manufacture is higher.And the IGBT pipe of IGBT half-bridge module is all directly integrated on circuit boards, in this way It is unfavorable for the heat dissipation of IGBT pipe, easily leads to the failure of IGBT pipe excess temperature, and IGBT half-bridge module, nothing can only be replaced after IGBT tube failure Method carries out single tube replacement.

In order to solve the above problems, people are seeking always a kind of ideal technical solution.

Summary of the invention

The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of at low cost, good heat dissipation effect, knot Simple, the easy for installation IGBT full bridge inverter plate for inversion welding machine of structure.

To achieve the goals above, the technical scheme adopted by the utility model is it is a kind of for inversion welding machine IGBT full bridge inverter plate, including circuit board body and multiple groups IGBT pipe group, the circuit board body both ends are respectively symmetrically set It is equipped with multiple groups connecting hole, there are two direct current input wires mouth, the circuit board body lower parts for the circuit board body top setting Setting is provided with auxiliary electron component, the circuit board body in the circuit board body there are two output connection mouth is exchanged It is inside provided with conducting wire, the connecting hole is electrically connected in IGBT pipe, and IGBT pipe group, auxiliary electron component, direct current input connect Line mouth connects and composes IGBT full bridge inverter with exchanging output connection mouth and pass through conducting wire respectively.

Based on above-mentioned, the IGBT pipe group of described circuit board body one end is set as the first power supply polarity, the circuit board sheet The IGBT pipe group of the body other end is set as the second power supply polarity, and the first power supply polarity and the second power supply polarity are opposite power pole Property.

Based on above-mentioned, the IGBT pipe group includes three IGBT pipes.

Based on above-mentioned, auxiliary electron component include resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, Capacitor C3, capacitor C4, diode VD3, diode VD7, diode VD6 and diode VD10, circuit board body one end are set respectively Be equipped with IGBT3 and IGBT7, the circuit board body other end is respectively arranged with IGBT6 and IGBT10, the collector of the IGBT3 and The collector of the IGBT7 is separately connected the anode of direct current input wires mouth, and the collector of IGBT3 passes sequentially through resistance R1 and electricity Hold the emitter of C1 connection IGBT3, the emitter of IGBT3 connects an exchange output connection mouth, and the grid of IGBT3 connects driving The emitter of the anode connection IGBT3 of 1, diode VD3, the collector of the cathode connection IGBT3 of diode VD3；The collection of IGBT7 Electrode passes sequentially through the emitter that resistance R3 connects IGBT7 with capacitor C3, and the emitter of IGBT7 connects another exchange output and connects The grid connection driving 3 of line mouth IGBT7, the emitter of the anode connection IGBT7 of diode VD7, the cathode connection of diode VD7 The collector of IGBT7；The emitter of the emitter of the IGBT6 and the IGBT10 are separately connected the negative of direct current input wires mouth Pole, the collector of IGBT6 connect an exchange output connection mouth and pass sequentially through the transmitting that resistance R2 connects IGBT6 with capacitor C2 Pole, the grid connection driving 2 of IGBT6, the emitter of the anode connection IGBT6 of diode VD6, the cathode connection of diode VD6 The collector of IGBT6；The collector of IGBT10 connects another exchange output connection mouth and passes sequentially through resistance R4 and capacitor C4 The emitter of IGBT10 is connected, the grid connection driving 4 of IGBT10, the anode of diode VD10 connects the emitter of IGBT10, The collector of the cathode connection IGBT10 of diode VD10.

The utility model has substantive features and progress compared with the prior art, specifically, the utility model pass through by The symmetrical both ends that circuit board body is set of IGBT pipe group, good heat dissipation effect, and IGBT is all used in every group of IGBT pipe group Pipe, at low cost and easy disassembly have the advantages that at low cost, good heat dissipation effect, structure are simple, easy for installation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the electrical block diagram of the utility model inverter circuit.

In figure: 1. circuit board bodies；2.IGBT pipe；3. direct current input wires mouth；4. exchanging output connection mouth.

Specific embodiment

Below by specific embodiment, the technical solution of the utility model is described in further detail.

As depicted in figs. 1 and 2, a kind of IGBT full bridge inverter plate for inversion welding machine, including circuit board body With multiple groups IGBT pipe group, the circuit board body both ends have been symmetrically arranged multiple groups connecting hole, the circuit board body top There are two direct current input wires mouths for setting, and there are two exchange output connection mouth, the circuit for the circuit board body lower part setting It is provided with auxiliary electron component on plate ontology, conducting wire is provided in the circuit board body, institute is electrically connected in IGBT pipe It states connecting hole, IGBT pipe group, auxiliary electron component, direct current input wires mouth and exchanges output connection mouth and connected respectively by conducting wire It connects and constitutes IGBT full bridge inverter.

Described one, direct current input wires mouth connects DC input voitage anode, and one connects DC input voitage cathode.IGBT Pipe group and auxiliary electron component by conducting wire be separately connected direct current input wires mouth with exchange output connection mouth, it is complete to constitute IGBT Bridge inverter circuit receives DC power supply from direct current input wires mouth and exports high-frequency ac power from exchange output connection mouth. IGBT pipe group is symmetrically distributed in the setting of circuit board body both ends, more conducively radiates, effectively prolongs the service life.IGBT pipe group simultaneously Interior includes an at least IGBT pipe, and bad pipe can be individually replaced by a certain IGBT pipe when damaging, easy to use, at low cost.In practice The IGBT pipe of different number can be selected to form IGBT pipe group according to different power demands, in the present embodiment, the IGBT pipe Group includes three IGBT pipes.

Preferably, the IGBT pipe group of described circuit board body one end is set as the first power supply polarity, the circuit board body The IGBT pipe group of the other end is set as the second power supply polarity, and the first power supply polarity and the second power supply polarity are opposite power pole Property, to simplify connection relationship, facilitate installation and connection, and effectively avoid short trouble, management convenient for safeguarding.

Auxiliary electron component includes resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, capacitor C3, electricity Hold C4, diode VD3, diode VD7, diode VD6 and diode VD10, circuit board body one end and is respectively arranged with IGBT3 And IGBT7, the circuit board body other end are respectively arranged with IGBT6 and IGBT10, the collector of the IGBT3 and the IGBT7 Collector be separately connected the anode of direct current input wires mouth, the collector of IGBT3 passes sequentially through resistance R1 and connects with capacitor C1 The emitter of IGBT3, the emitter of IGBT3 connect an exchange output connection mouth, the grid connection driving 1 of IGBT3, diode The emitter of the anode connection IGBT3 of VD3, the collector of the cathode connection IGBT3 of diode VD3；The collector of IGBT7 is successively The emitter of IGBT7 is connected with capacitor C3 by resistance R3, the emitter of IGBT7 connects another exchange output connection mouth The grid connection driving 3 of IGBT7, the emitter of the anode connection IGBT7 of diode VD7, the cathode connection of diode VD7 The collector of IGBT7；The emitter of the emitter of the IGBT6 and the IGBT10 are separately connected the negative of direct current input wires mouth Pole, the collector of IGBT6 connect an exchange output connection mouth and pass sequentially through the transmitting that resistance R2 connects IGBT6 with capacitor C2 Pole, the grid connection driving 2 of IGBT6, the emitter of the anode connection IGBT6 of diode VD6, the cathode connection of diode VD6 The collector of IGBT6；The collector of IGBT10 connects another exchange output connection mouth and passes sequentially through resistance R4 and capacitor C4 The emitter of IGBT10 is connected, the grid connection driving 4 of IGBT10, the anode of diode VD10 connects the emitter of IGBT10, The collector of the cathode connection IGBT10 of diode VD10.IGBT3, IGBT7, IGBT6 and IGBT10 constitute full bridge inverter It is connected between direct current input wires mouth and exchange output connection mouth, is by the DC inverter inputted by direct current input wires mouth It is exported after alternating current by exchange output connection mouth.In practice there are three every group of wiring holes, be respectively used to connection IGBT pipe grid, Collector and emitter, driving 1, driving 2, driving 3 and driving 4 are respectively external for controlling the driving signal of IGBT pipe. In the present embodiment, there are two IGBT to manage for parallel connection respectively by IGBT3, IGBT7, IGBT6 and IGBT10, to improve full bridge inverter Reliability.

Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model In range.

Claims (3)

1. a kind of IGBT full bridge inverter plate for inversion welding machine, it is characterised in that: including circuit board body and multiple groups IGBT pipe group, the circuit board body both ends have been symmetrically arranged multiple groups connecting hole, and the circuit board body top is provided with Two direct current input wires mouths, there are two exchange output connection mouth, the circuit board body for the circuit board body lower part setting On be provided with auxiliary electron component, conducting wire is provided in the circuit board body, the connection is electrically connected in IGBT pipe Hole, IGBT pipe group, auxiliary electron component, direct current input wires mouth are connected and composed by conducting wire respectively with output connection mouth is exchanged IGBT full bridge inverter；Auxiliary electron component include resistance R1, resistance R2, resistance R3, resistance R4, capacitor C1, capacitor C2, Capacitor C3, capacitor C4, diode VD3, diode VD7, diode VD6 and diode VD10, circuit board body one end are set respectively Be equipped with IGBT3 and IGBT7, the circuit board body other end is respectively arranged with IGBT6 and IGBT10, the collector of the IGBT3 and The collector of the IGBT7 is separately connected the anode of direct current input wires mouth, and the collector of IGBT3 passes sequentially through resistance R1 and electricity Hold the emitter of C1 connection IGBT3, the emitter of IGBT3 connects an exchange output connection mouth, and the grid of IGBT3 connects driving The emitter of the anode connection IGBT3 of 1, diode VD3, the collector of the cathode connection IGBT3 of diode VD3；The collection of IGBT7 Electrode passes sequentially through the emitter that resistance R3 connects IGBT7 with capacitor C3, and the emitter of IGBT7 connects another exchange output and connects Line mouth, the grid connection driving 3 of IGBT7, the emitter of the anode connection IGBT7 of diode VD7, the cathode of diode VD7 connect Connect the collector of IGBT7；The emitter of the emitter of the IGBT6 and the IGBT10 are separately connected direct current input wires mouth Cathode, the collector of IGBT6 connect an exchange output connection mouth and pass sequentially through the hair that resistance R2 connects IGBT6 with capacitor C2 Emitter-base bandgap grading, the grid connection driving 2 of IGBT6, the emitter of the anode connection IGBT6 of diode VD6, the cathode of diode VD6 connect Connect the collector of IGBT6；The collector of IGBT10 connects another exchange output connection mouth and passes sequentially through resistance R4 and capacitor The emitter of C4 connection IGBT10, the grid connection driving 4 of IGBT10, the transmitting of the anode connection IGBT10 of diode VD10 Pole, the collector of the cathode connection IGBT10 of diode VD10.

2. the IGBT full bridge inverter plate according to claim 1 for inversion welding machine, it is characterised in that: the electricity The IGBT pipe group of road plate ontology one end is set as the first power supply polarity, and the IGBT pipe group of the circuit board body other end is set as Second power supply polarity, the first power supply polarity and the second power supply polarity are opposite power supply polarity.

3. the IGBT full bridge inverter plate according to claim 1 for inversion welding machine, it is characterised in that: described IGBT pipe group includes three IGBT pipes.