CN213782005U

CN213782005U - IGBT module casing

Info

Publication number: CN213782005U
Application number: CN202023099831.9U
Authority: CN
Inventors: 周晟
Original assignee: Kunshan Xinda Accurate Component Co ltd
Current assignee: Kunshan Xinda Accurate Component Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-07-23
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a IGBT module casing, which comprises a housin, the top surface middle part of casing is equipped with a mounting groove, casing top surface edge department is equipped with multiunit contact pin, multiunit the contact pin set up in the outside of mounting groove, its characterized in that: the left side and the right side of casing symmetry respectively are equipped with two sets of connection archs, connect protruding with the integrative injection moulding of casing, it has a metal connecting piece to imbed in the connection arch, metal connecting piece's top set up in connect bellied top, metal connecting piece's top is equipped with a screw. The utility model provides the high production efficiency of casing has reduced operating personnel intensity of labour, has improved the casing installation accuracy.

Description

IGBT module casing

Technical Field

The utility model relates to a IGBT module especially relates to an IGBT module casing.

Background

The IGBT and the insulated gate bipolar transistor are composite fully-controlled voltage-driven power semiconductor devices composed of BJTs (bipolar transistors) and MOS (insulated gate field effect transistors), and have the advantages of both high input impedance of the MOSFET and low conduction voltage drop of GTR.

The IGBT modules are generally mounted inside a case and then assembled using the case. The shell is generally formed by injection molding, and nuts are mounted on two sides of the shell after the injection molding for connecting the shell. However, in this method, the production efficiency of the product is low, the precision of the product is not good enough, and the stability and the firmness of the product installation connection are not good enough. Therefore, the technical problem is solved by the skilled person in the art.

Disclosure of Invention

The utility model aims at providing a IGBT module casing through using this structure, has improved the fastness and the stability of product erection joint, has improved the production efficiency and the quality of product simultaneously, has improved the precision of product.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a IGBT module casing, includes the casing, the top surface middle part of casing is equipped with a mounting groove, casing top surface edge department is equipped with the multiunit contact pin, the multiunit the contact pin set up in the outside of mounting groove, the left side and the right side of casing symmetry respectively are equipped with two sets of connection archs, connect protruding with the integrative injection moulding of casing, the embedding has a metal connecting piece in the connection arch, metal connecting piece's top set up in connect bellied top, metal connecting piece's top is equipped with a screw.

Among the above-mentioned technical scheme, the metal connecting piece includes Z template and metal stand, the Z template includes left side diaphragm, right side diaphragm and riser, the bottom of riser with the right side of left side diaphragm links to each other, the top of riser with the left side of right side diaphragm links to each other, left side diaphragm with right side diaphragm parallel arrangement each other, the metal stand install in on the bottom surface of right side diaphragm, the screw set up in the top of metal stand, the top of right side diaphragm is equipped with a through-hole, the bottom of through-hole with the screw communicates.

In the technical scheme, the left side transverse plate is embedded into the side wall of the shell, the vertical plate is embedded into the connecting protrusion, and the bottom of the right side transverse plate and the metal upright post are embedded into the connecting protrusion.

In the technical scheme, the bottom of the connecting protrusion is provided with a through groove, the depth of the through groove is 1/3-1/2 of the thickness of the connecting protrusion, the top of the through groove is provided with a sunken supporting column, the bottom surface of the supporting column is close to the bottom surface of the through groove, and the bottom of the metal upright column is embedded into the supporting column.

In the above technical scheme, the screw hole and the through hole are coaxially arranged, and the diameter of the screw hole is smaller than that of the through hole.

In the technical scheme, each group of the shell beside the connecting protrusion is provided with an installation through hole.

In the above technical scheme, the top surface of the connecting protrusion is arranged above the top surface of the shell, and the bottom surface of the connecting protrusion is arranged above the bottom surface of the shell.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model discloses in set up the connection arch in the both sides of casing to embedding metal connecting piece in the connection arch sets up the screw on metal connecting piece, can once only injection moulding like this in casing production, improved the accuracy nature of screw position, guarantee the casing connection precision, improve the production sales volume and the quality of product, simultaneously, because the screw position is more accurate, effectively improve product erection joint's stability and fastness.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a bottom of a housing according to a first embodiment of the present invention;

fig. 3 is a schematic perspective view of a top portion of a housing according to a first embodiment of the present invention;

fig. 4 is a schematic cross-sectional structure view of a mounting portion of the metal connecting piece and the connecting protrusion in the first embodiment of the present invention.

Wherein: 1. a housing; 2. mounting grooves; 3. inserting a pin; 4. a connecting projection; 5. a metal connecting member; 6. A screw hole; 7. a Z-shaped plate; 8. a metal upright post; 9. a left lateral plate; 10. a right lateral plate; 11. a vertical plate; 12. a through hole; 13. a through groove; 14. supporting a column; 15. and installing the through hole.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the first embodiment is as follows: referring to fig. 1-4, an IGBT module casing, includes casing 1, the top surface middle part of casing is equipped with a mounting groove 2, casing top surface outer fringe department is equipped with multiunit contact pin 3, the multiunit the contact pin set up in the outside of mounting groove, the left side and the right side of casing symmetry respectively are equipped with two sets of connection arch 4, connect protruding with the integrative injection moulding of casing, the embedding has a metal connecting piece 5 in the connection arch, metal connecting piece's top set up in connect bellied top, metal connecting piece's top is equipped with a screw 6.

In this embodiment, when in actual use, set up the connection protrusion in the both sides of casing to at the embedded metal connecting piece of connecting protrusion, set up the screw at the metal connecting piece top, the installation of the casing of being convenient for like this, compare with the mode of follow-up mounting nut in the past, the precision of its installation is higher, and casing production efficiency is higher in addition, effectively reduces operating personnel intensity of labour.

Referring to fig. 4, the metal connecting piece includes a Z-shaped plate 7 and a metal upright 8, the Z-shaped plate includes a left side transverse plate 9, a right side transverse plate 10 and a vertical plate 11, the bottom of the vertical plate is connected with the right side of the left side transverse plate, the top of the vertical plate is connected with the left side of the right side transverse plate, the left side transverse plate is parallel to the right side transverse plate, the metal upright is mounted on the bottom surface of the right side transverse plate, the screw hole is formed in the top of the metal upright, a through hole 12 is formed in the top of the right side transverse plate, and the bottom of the through hole is communicated with the screw hole.

The left side diaphragm imbed in the lateral wall of casing, the riser imbed in connect in the arch, the bottom of right side diaphragm and the metal stand imbed in connect in the arch.

In this embodiment, in order to guarantee the stability when the protruding use of connection, also be when the screw is connected, warp and damage in order to prevent the protruding atress of connection, through setting up Z template and metal column, the left side of Z template is directly embedded into in the lateral wall of casing, like this after the protruding department atress of connection, can strengthen through the Z template, prevents the protruding deformation of connection, guarantees the fastness and the precision of casing installation, guarantees the quality of casing.

Referring to fig. 2 and 4, a through groove 13 is formed in the bottom of the connecting protrusion, the depth of the through groove is 1/3-1/2 of the thickness of the connecting protrusion, a sunken support column 14 is arranged at the top of the through groove, the bottom surface of the support column is arranged close to the bottom surface of the through groove, and the bottom of the metal upright column is embedded into the support column.

In this embodiment, through leading to the setting of groove and support column, can enough reduce the materials, reduce cost can guarantee its intensity again, guarantees the fastness and the quality of connecting protruding connection.

Referring to fig. 1-4, the screw hole and the through hole are coaxially arranged, and the diameter of the screw hole is smaller than that of the through hole.

And a mounting through hole 15 is formed in the shell beside each group of the connecting bulges. Through the arrangement of the mounting through holes, the shell is also connected.

The top surface of the connecting protrusion is arranged above the top surface of the shell, and the bottom surface of the connecting protrusion is arranged above the bottom surface of the shell.

Claims

1. The utility model provides a IGBT module casing, includes the casing, the top surface middle part of casing is equipped with a mounting groove, casing top surface edge department is equipped with the multiunit contact pin, the multiunit the contact pin set up in the outside of mounting groove, its characterized in that: the left side and the right side of casing symmetry respectively are equipped with two sets of connection archs, connect protruding with the integrative injection moulding of casing, it has a metal connecting piece to imbed in the connection arch, metal connecting piece's top set up in connect bellied top, metal connecting piece's top is equipped with a screw.

2. The IGBT module housing of claim 1, wherein: the metal connecting piece includes Z template and metal stand, the Z template includes left side diaphragm, right side diaphragm and riser, the bottom of riser with the right side of left side diaphragm links to each other, the top of riser with the left side of right side diaphragm links to each other, the left side diaphragm with right side diaphragm parallel arrangement each other, metal stand install in on the bottom surface of right side diaphragm, the screw set up in the top of metal stand, the top of right side diaphragm is equipped with a through-hole, the bottom of through-hole with the screw communicates.

3. The IGBT module housing of claim 2, wherein: the left side diaphragm imbed in the lateral wall of casing, the riser imbed in connect in the arch, the bottom of right side diaphragm and the metal stand imbed in connect in the arch.

4. The IGBT module housing of claim 2, wherein: connect bellied bottom and be equipped with a logical groove, the degree of depth that leads to the groove does connect bellied thickness 1/3 ~ 1/2, the top that leads to the groove is equipped with sunken support post, the bottom surface of support post is close to the bottom surface setting of leading to the groove, the bottom of metal stand imbed in support inside the post.

5. The IGBT module housing of claim 2, wherein: the screw hole and the through hole are coaxially arranged, and the diameter of the screw hole is smaller than that of the through hole.

6. The IGBT module housing of claim 1, wherein: and each group of the shell beside the connecting bulge is provided with an installation through hole.

7. The IGBT module housing of claim 1, wherein: connect bellied top surface set up in the top surface top of casing, connect bellied bottom surface set up in the bottom surface top of casing.