CN207369396U

CN207369396U - A kind of IGBT power drives substrate

Info

Publication number: CN207369396U
Application number: CN201721366452.7U
Authority: CN
Inventors: 谢武; 范久兵
Original assignee: Toyo Communication Equipment Co Ltd
Current assignee: Toyo Communication Equipment Co Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2018-05-15
Anticipated expiration: 2027-10-23

Abstract

The utility model discloses a kind of IGBT power drives substrate, the main conductive printed graphic layer included using substrate made of isolation material and be printed on upper surface of base plate；The upper surface of the substrate is coated with plastic insulation layer, wherein plastic insulation layer is uniformly wrapped in the outside of conductive printed graphic layer, the utility model improves the creasing resistance of whole substrate using stiffening ring, stiffening ring made of molybdenum-copper has good heat conduction and electric conductivity at the same time, stiffening ring can have more than needed the surface of substrate while booster action is played charge-trapping, net charge is exported using leading foot at the same time, at this time during leading foot contact arrangement metal shell, entirety can export electric charge more than needed to equipment, so as to effectively avoid electrostatic breakdown from causing IGBT drive module to damage, overall not only intensity is improved, and antistatic effect is also very outstanding.

Description

A kind of IGBT power drives substrate

Technical field

Pcb board field is the utility model is related to, more particularly, to a kind of IGBT power drives substrate.

Background technology

PCB Chineses are printed circuit board, also known as printed wiring board, are important electronic units, are electronic components Supporter, be electronic component electrical connection carrier.Since it is using electron printing making, therefore it is referred to as " print Brush " circuit board.

Existing IGBT module substrate used thereof often occurs that intensity is high or situation of electrostatic breakdown, causes equipment overall Service life is not grown.

Utility model content

The utility model is to overcome the above situation insufficient, it is desirable to provide a kind of technical solution that can be solved the above problems.

A kind of IGBT power drives substrate, it is main to include using substrate made of isolation material and be printed on substrate upper table The conductive printed graphic layer in face；The upper surface of the substrate is coated with plastic insulation layer, and wherein plastic insulation layer uniformly wraps up In the outside of conductive printed graphic layer；The top of the substrate is equipped with the driving of IGBT drive module, wherein IGBT drive module Module pin passes through plastic insulation layer and the conductive printed graphic layer that is of coupled connections；Multiple annulars are offered on the bottom surface of the substrate Embedded groove, be nested and spaced setting in inside and outside wherein between embedded groove, it is fixedly embedded in the embedded groove to have the conjunction of molybdenum copper It is arranged at intervals between stiffening ring made of gold, wherein stiffening ring and conductive printed graphic layer, whole substrate is improved using stiffening ring Creasing resistance, while stiffening ring made of molybdenum-copper has good heat conduction and electric conductivity；The substrate bottom surface On be further opened with linear lead-out groove, and the lead-out groove is connected with embedded groove；It is fixedly embedded in the lead-out groove to have molybdenum Leading foot made of copper alloy, wears to the outer fix of substrate wherein drawing, and is used between the leading foot and stiffening ring The form of welding connects, and stiffening ring can have more than needed the surface of substrate while booster action is played charge-trapping, together Shi Liyong leading foots export net charge, at this time during leading foot contact arrangement metal shell, will can integrally have more than needed Electric charge is exported to equipment, and so as to effectively avoid electrostatic breakdown from causing IGBT drive module to damage, entirety is not Only intensity is improved, and antistatic effect is also very outstanding.

As further program of the utility model：The quantity at least two of the stiffening ring.

As further program of the utility model：Electric silica gel is scribbled between the stiffening ring and substrate.

As further program of the utility model：Electric silica gel is scribbled between the leading foot and substrate.

As further program of the utility model：The lead-out groove is set with embedded groove with conductive printed graphic layer interval Put.

The beneficial effects of the utility model：The utility model improves the creasing resistance of whole substrate using stiffening ring, together When stiffening ring made of molybdenum-copper there is good heat conduction and electric conductivity, stiffening ring can while booster action is played The surface of substrate to be had more than needed charge-trapping, while net charge is exported using leading foot, at this time when leading foot contact arrangement gold During belonging to shell, electric charge more than needed can be integrally exported to equipment, so as to effectively avoid electrostatic breakdown from making Damaged into IGBT drive module, overall not only intensity is improved, but also antistatic effect is also very outstanding.

The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description In become obvious, or recognized by the practice of the utility model.

Brief description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property Put, other attached drawings can also be obtained according to these attached drawings.

Fig. 1 is the sectional view of the utility model.

Fig. 2 is the bottom view of the utility model.

In figure：1- substrates, 2- conductions printed graphic layer, 3- plastic insulation layers, 4-IGBT drive modules, 5- drive modules are drawn Foot, 6- stiffening rings, 7- leading foots.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

Please refer to Fig.1~2, in the utility model embodiment, a kind of IGBT power drives substrate is main to include using insulation Substrate 1 made of material and the conductive printed graphic layer 2 for being printed on upper surface of base plate；The upper surface of the substrate 1 is coated with Plastic insulation layer 3, wherein plastic insulation layer 3 are uniformly wrapped in the outside of conductive printed graphic layer 2；The top of the substrate 1 Equipped with IGBT drive module 4, the wherein drive module pin 5 of IGBT drive module 4 passes through plastic insulation layer 3 and is of coupled connections and leads Electric printed graphic layer 2；Multiple annular embedded grooves are offered on the bottom surface of the substrate 1, are in interior foreign minister wherein between embedded groove Cover and spaced setting, fixedly embedded in the embedded groove there are stiffening ring 6 made of molybdenum-copper, wherein stiffening ring 6 is with leading It is arranged at intervals between electric printed graphic layer 2, the creasing resistance of whole substrate 1, while molybdenum-copper system is improved using stiffening ring 6 Into stiffening ring 6 there is good heat conduction and electric conductivity；Linear lead-out groove is further opened with 1 bottom surface of substrate, And the lead-out groove is connected with embedded groove；It is fixedly embedded in the lead-out groove to have leading foot 7 made of molybdenum-copper, wherein drawing Go out foot 7 to wear to the outer fix of substrate 1, and connected between the leading foot 7 and stiffening ring 6 in the form of welding, added Strong circle 6 can have more than needed the surface of substrate 1 while booster action is played charge-trapping, while will net electricity using leading foot 7 Lotus exports, and at this time during 7 contact arrangement metal shell of leading foot, can integrally export electric charge more than needed to outside equipment Side, so as to effectively avoid electrostatic breakdown from causing IGBT drive module 4 to damage, overall not only intensity is carried Rise, and antistatic effect is also very outstanding.

The quantity at least two of the stiffening ring 6.

Electric silica gel is scribbled between the stiffening ring 6 and substrate 1.

Electric silica gel is scribbled between the leading foot 7 and substrate 1.

The lead-out groove is arranged at intervals with embedded groove with conductive printed graphic layer 2.

The operation principle of the utility model is：The creasing resistance of whole substrate 1, while molybdenum copper are improved using stiffening ring 6 Stiffening ring 6 made of alloy has good heat conduction and electric conductivity, and stiffening ring 6 can incite somebody to action while booster action is played The surface of substrate 1 is had more than needed charge-trapping, while is exported net charge using leading foot 7, at this time when 7 contact arrangement metal of leading foot During shell, electric charge more than needed can be integrally exported to equipment, so as to effectively avoid electrostatic breakdown from causing IGBT drive module 4 is damaged, and overall not only intensity is improved, but also antistatic effect is also very outstanding.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.

Claims

1. a kind of IGBT power drives substrate, main to include using substrate made of isolation material and be printed on upper surface of base plate Conductive printed graphic layer；The upper surface of the substrate is coated with plastic insulation layer, and wherein plastic insulation layer is uniformly wrapped in The outside of conductive printed graphic layer；The top of the substrate is equipped with the driving mould of IGBT drive module, wherein IGBT drive module Block pin passes through plastic insulation layer and the conductive printed graphic layer that is of coupled connections；It is characterized in that, opened up on the bottom surface of the substrate There are multiple annular embedded grooves, be nested and spaced setting in inside and outside wherein between embedded groove, fixed in the embedded groove embedding Entering has stiffening ring made of molybdenum-copper, is wherein arranged at intervals between stiffening ring and conductive printed graphic layer, the substrate bottom surface On be further opened with linear lead-out groove, and the lead-out groove is connected with embedded groove；It is fixedly embedded in the lead-out groove to have molybdenum Leading foot made of copper alloy, wears to the outer fix of substrate wherein drawing, and is used between the leading foot and stiffening ring The form of welding connects.

2. IGBT power drives substrate according to claim 1, it is characterised in that the quantity of the stiffening ring is at least two It is a.

3. IGBT power drives substrate according to claim 1, it is characterised in that scribbled between the stiffening ring and substrate Electric silica gel.

4. IGBT power drives substrate according to claim 1, it is characterised in that scribbled between the leading foot and substrate Electric silica gel.

5. IGBT power drives substrate according to claim 1, it is characterised in that the lead-out groove is with embedded groove with leading Electric printed graphic layer is arranged at intervals.