CN205609357U

CN205609357U - IGBT is three -terminal absorption capacitors ware for module

Info

Publication number: CN205609357U
Application number: CN201620430538.0U
Authority: CN
Inventors: 蒋建忠; 周玲; 陈韶波
Original assignee: Suzhou Kaiwangda Capacitor Co Ltd
Current assignee: Suzhou Kaiwangda Capacitor Co Ltd
Priority date: 2016-05-13
Filing date: 2016-05-13
Publication date: 2016-09-28
Anticipated expiration: 2026-05-13

Abstract

The utility model discloses a IGBT is three -terminal absorption capacitors ware for module, including the casing, side by side locate the casing outside with the first terminal IGBT module pin one -to -one, second terminal, third terminal, first electric capacity core and the second electric capacity core of encapsulation in the casing, the first end of drawing forth of first electric capacity core is electrically connected to the first terminal, end and second electric capacity core are drawn forth to the second of first electric capacity core first draw forth to hold be electrically connected to the second terminal, the second of second electric capacity core is drawn forth the end and is electrically connected to the third terminal. The utility model discloses simple to operate has improved production efficiency, has reduced the equivalent inductance and the equivalent resistance of circuit, makes circuit work more stable to the material has been saved.

Description

IGBT Module is with three end absorption capacitors

Technical field

This utility model relates to a kind of capacitor, is specifically related to a kind of IGBT module three end absorption capacitors.

Background technology

Capacitor is commonly referred to electric capacity, and electric capacity also referred to as " capacitance ", refers to the electric charge reserves under given potential difference, is designated as C, and iu is farad (F).In general, electric charge in the electric field can stress and move, between conductor, had medium, then hindering electric charge moves and makes charge accumulation on conductor, causes the accumulation of electric charge to store, the quantity of electric charge of storage then be referred to as electric capacity.Electric capacity is one of a large amount of electronic components used in electronic equipment, be widely used in every straight, couple, bypass, filter, the conversion of resonant tank, energy, the aspect such as control circuit.

At present, absorption capacitor for IGBT module is usually two discrete structures, owing to IGBT module is three pin configuration, and two discrete absorption capacitors contain four pins, therefore two absorption capacitors need to be wired on the pin of IGBT module, not only install very inconvenient, and if wire connection error, it is easy to safety problem occurs.

Therefore, a kind of IGBT module of design, with three end absorption capacitors, solves absorption capacitor and installs the problem of inconvenience, promote the safety that electric capacity is installed, it is clear that have positive realistic meaning.

Utility model content

Goal of the invention of the present utility model is to provide a kind of IGBT module with three end absorption capacitors, can be directly installed in IGBT module, it is not necessary to use lead-out wire to connect, easy for installation, raising production efficiency, the safety of erection & lift.

To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of IGBT module is with three end absorption capacitors, including housing, be located at hull outside side by side with IGBT module pin the first terminal one to one, second terminal and the 3rd terminal, the first capacitor core being encapsulated in housing and the second capacitor core, first exit of described first capacitor core is electrically connected to the first terminal, second exit of described first capacitor core and the first exit of the second capacitor core are electrically connected to the second terminal, second exit of described second capacitor core is electrically connected to the 3rd terminal.

Further, described first capacitor core and the second capacitor core pass through implant embedding in housing.

Preferably, described implant is epoxy resin.

Preferably, first exit of described first capacitor core is electrically connected to the first terminal through wire, second exit of described first capacitor core and the first exit of the second capacitor core are electrically connected to the second terminal through wire, and the second exit of described second capacitor core is electrically connected to the 3rd terminal through wire.

Owing to technique scheme is used, this utility model compared with prior art has the advantage that

Two capacitor cores are packaged in a housing by this utility model, housing is drawn three three corresponding with IGBT module pin terminals, two capacitors being packaged in enclosure interior are electrically connected on three terminals, such that it is able to be directly installed in IGBT module, it is not necessary to use lead-out wire to connect, easy for installation, improve production efficiency, reduce equivalent inductance and the equivalent resistance of circuit, make circuit work relatively reliable stable, and save material.

Accompanying drawing explanation

Fig. 1 is concrete structure schematic diagram of the present utility model in embodiment one.

Fig. 2 is this utility model and IGBT module connection diagram in embodiment one.

Wherein: 1, housing；2, the first terminal；3, the second terminal；4, the 3rd terminal；5, the first capacitor core；6, the second capacitor core；7, implant；8, IGBT module.

Detailed description of the invention

Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:

Embodiment one:

See shown in Fig. 1 and 2, a kind of IGBT module is with three end absorption capacitors, including housing 1, be located at hull outside side by side with IGBT module pin the first terminal the 2, second terminal 3 one to one and the 3rd terminal 4, the first capacitor core 5 and the second capacitor core 6 being encapsulated in housing, first exit of described first capacitor core is electrically connected to the first terminal, second exit of described first capacitor core and the first exit of the second capacitor core are electrically connected to the second terminal, and the second exit of described second capacitor core is electrically connected to the 3rd terminal.

In the present embodiment, described first capacitor core and the second capacitor core are by implant 7 embedding in housing, and described implant uses epoxy resin.

Wherein, first exit of described first capacitor core is electrically connected to the first terminal through wire, second exit of described first capacitor core and the first exit of the second capacitor core are electrically connected to the second terminal through wire, and the second exit of described second capacitor core is electrically connected to the 3rd terminal through wire.

This utility model is in use, have only to be respectively fixed on three pins of IGBT module the first terminal, the second terminal and the 3rd terminal, can complete to install, easy for installation, improve production efficiency, reduce equivalent inductance and the equivalent resistance of circuit, make circuit work relatively reliable stable, and save material.

Claims

1. an IGBT module is with three end absorption capacitors, it is characterized in that: include housing, be located at hull outside side by side with IGBT module pin the first terminal one to one, the second terminal and the 3rd terminal, the first capacitor core being encapsulated in housing and the second capacitor core, first exit of described first capacitor core is electrically connected to the first terminal, second exit of described first capacitor core and the first exit of the second capacitor core are electrically connected to the second terminal, and the second exit of described second capacitor core is electrically connected to the 3rd terminal.

IGBT module the most according to claim 1 is with three end absorption capacitors, it is characterised in that: described first capacitor core and the second capacitor core by implant embedding in housing.

IGBT module the most according to claim 2 is with three end absorption capacitors, it is characterised in that:

Described implant is epoxy resin.

IGBT module the most according to claim 1 is with three end absorption capacitors, it is characterized in that: the first exit of described first capacitor core is electrically connected to the first terminal through wire, second exit of described first capacitor core and the first exit of the second capacitor core are electrically connected to the second terminal through wire, and the second exit of described second capacitor core is electrically connected to the 3rd terminal through wire.