CN204885126U

CN204885126U - Novel IGBT structure fixing device of integration

Info

Publication number: CN204885126U
Application number: CN201520672261.8U
Authority: CN
Inventors: 宋晓飞
Original assignee: HEBEI HUAZHANG INDUSTRIL CO Ltd
Current assignee: HEBEI HUAZHANG INDUSTRIL CO Ltd
Priority date: 2015-08-26
Filing date: 2015-08-26
Publication date: 2015-12-16
Anticipated expiration: 2025-08-26

Abstract

The utility model belongs to the technical field of install the chip, a novel IGBT structure fixing device of integration is disclosed, it is the perhaps hollow support body structure of rectangle of square, the inside metal pin -attached frame that is of support body, and the outside plastic layer cladding through the insulation of metal pin -attached frame, the utility model discloses the square contact that the outside was provided with a plurality of and outer electrode and connected with the external control part, the fixed pin of a plurality of chips of center part's processing all around, the fixed pin of chip includes electrode pin and control pin, control pin and external interface fix needle structure as an organic whole, electrode pin and square contact structure as an organic whole, the utility model discloses a structure that the insulating plastic layer of metal pin -attached frame outsourcing covered, the fixed pin of chip be more than the 2mm with the width of chip tie point department, and the vacation of can not splitting during the welding is welded, and is insulating effectual, can not shift among the welding process, and it is easy to have with IGBT chip welded fastening, and fixed back firmly just switches on effectual advantage.

Description

Integration New IGBT structure fixture

Technical field

The utility model belongs to chip mounting technique field, is specifically related to a kind of integrated New IGBT structure fixture.

Background technology

IGBT electronic module, as one of important high-power main flow device of power electronics control device, has been widely used in the fields such as high voltage converter, communications and transportation, power engineering, regenerative resource and intelligent grid.In commercial Application, as traffic control, power conversion, industrial motor, uninterrupted power supply, wind-powered electricity generation and solar facilities, and the frequency converter for automatically controlling.

At present, in IGBT electronic module actual welding uses, together with igbt chip need being fixed to conductive electrode insulation crust, sealed by the pouring of insulating cement again, when but existing IGBT structure body fixture and igbt chip are welded and fixed, it must by many tiny pins and chips welding, be welded and fixed in process, pin breakage or dry joint phenomenon or welding is easily caused to be shifted, be not easy fixing and easily loosen after fixing, chip or electrode is caused to locate inaccurate, make igbt chip fixing loosely or conducting not smooth, affect the normal use of chip, by igbt chip and IGBT structure body fixture simple, firm is fixing, and good turn-on effect will be kept to be industry technical staff technical problem urgently to be resolved hurrily always.How to design a kind of integrated New IGBT structure fixture; the generation of above problem can be avoided; can igbt chip be fixed effectively, accurately and easily operate; can play a very good protection and turn-on effect to igbt chip after fixing, be industry personnel technical problems urgently to be resolved hurrily.

Summary of the invention

For realizing above-mentioned technical functionality, the technical solution of the utility model is as follows: integrated New IGBT structure fixture, it is square or rectangular hollow frame structure, support body is made up of two parts, inner metal pins frame respectively, whole metal pins frame outside is coated by the plastic layer of insulation, the utility model is outside, be provided with multiple with outer electrode and the square contact be connected with external control component, being processed with the circular mounting hole run through in the middle of described square contact, is hold-down nut below installing hole, the utility model centre is a square aperture, the surrounding of square aperture is processed with multiple chip and fixes pin, the width that chip fixes pin and chip connecting points place is more than 2mm, described chip is fixed pin and is comprised electrode pin and control pin, the external interface locking pin that described control pin and the utility model top are stretched out is structure as a whole, electrode pin and square contact are structure as a whole, described chip fixes the plastic overmold of pin frame outside by insulation, corner of the present utility model is processed with the fixing hole fixing with chip, the plastic layer that its top is coated is processed with fixing buckle.

Described chip fixes pin and external interface locking pin and all square contact conductings.

The material of the plastic layer of described insulation is injection molding ambroin.

The beneficial effects of the utility model: the structure that the utility model adopts inner pin outsourcing insulating plastic layer to cover, the width that multiple chips at the square aperture place in its centre fix pin and chip connecting points place is more than 2mm, can not to rupture during welding fixing with chip dry joint, and described electrode pin and control pin and square contact inner at insulating plastic layer and external interface locking pin are designed to integral type, inner stable connection and insulation effect is good respectively; Whole integrated New IGBT structure fixture has with IGBT easily fixing, fixes firmly rear and that turn-on effect is good advantage.

Accompanying drawing explanation

The utility model has 4, accompanying drawing, wherein:

Fig. 1 is the utility model perspective view.

Fig. 2 is the main TV structure schematic diagram of the utility model.

Fig. 3 is A-A cross-sectional view in the utility model Fig. 2.

Fig. 4 is B-B cross-sectional view in the utility model Fig. 2.

In accompanying drawing: 1, support body, 2, metal pins frame, 3, plastic layer, 4, chip fixes pin, 5, fixing hole, 6, square contact, 7, hold-down nut, 8, external interface locking pin, 9, fixing buckle, 10, electrode pin, 11, control pin.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.As shown in drawings, integration New IGBT structure fixture, it is square or rectangular hollow frame structure, support body 1 is made up of two parts, inner metal pins frame 2 respectively, whole metal pins frame 2 outside is coated by the plastic layer 3 of insulation, the material of the plastic layer 3 of insulation is injection molding insulation engineering plastics, such as PBT plastic or PPS plastics etc., after the utility model carries out precision process to mold cavity, make its integrated New IGBT structure fixation device surface particulate fine and closely woven, without contracting hole, convex closure, cut, the phenomenon such as crackle and torsional deformation.

The utility model is outside, the square contact 6 being provided with multiple and outer electrode and being connected with external control component, and described square contact 6 is electrode contacts and its centre is processed with the circular mounting hole run through, and is hold-down nut 7 below installing hole, the utility model centre is a square aperture, the surrounding of square aperture is processed with multiple chip and fixes pin 4, the width that described chip fixes pin 4 and chip connecting points place is more than 2mm, described chip is fixed pin and is comprised multiple electrode pin 10 and multiple control pin 11, the external interface locking pin 8 that described control pin 11 and the utility model top are stretched out is structure as a whole, electrode pin 10 and square contact 6 are structure as a whole, chip fixes pin 4 and external interface locking pin 8 and all square contact 6 conductings, it is coated by the plastic layer 3 of insulation that described chip fixes pin frame 2 outside, corner of the present utility model is processed with the fixing hole 5 fixing with chip, the plastic layer that its top is coated is processed with fixing buckle 9, its effect is that fixing top cover of the present utility model uses.

The structure that the plastic layer 3 that the utility model adopts inner pin outsourcing to insulate covers, the width that multiple chips at the square aperture place in its centre fix pin 4 and chip connecting points place is more than 2mm, can not to rupture during welding fixing with chip dry joint, and described electrode pin 10 and control pin 11 and square contact 6 inner at insulating plastic layer 3 and external interface locking pin 8 are designed to integral type, inner stable connection and insulation effect is good respectively; Whole integrated New IGBT structure fixture has with igbt chip easily fixing, fixes firmly rear and that turn-on effect is good advantage.

Claims

1. integrated New IGBT structure fixture, it is square or rectangular hollow frame structure, it is characterized in that: support body is made up of two parts, inner metal pins frame respectively, whole metal pins frame outside is coated by the plastic layer of insulation, and the utility model is outside, is provided with multiple with outer electrode and the square contact be connected with external control component, being processed with the circular mounting hole run through in the middle of described square contact, is hold-down nut below installing hole, the utility model centre is a square aperture, the surrounding of square aperture is processed with multiple chip and fixes pin, the width that chip fixes pin and chip connecting points place is more than 2mm, described chip is fixed pin and is comprised electrode pin and control pin, the external interface locking pin that described control pin and the utility model top are stretched out is structure as a whole, electrode pin and square contact are structure as a whole, described chip fixes the plastic overmold of pin frame outside by insulation, corner of the present utility model is processed with the fixing hole fixing with chip, the plastic layer that its top is coated is processed with fixing buckle.

2. integrated New IGBT structure fixture according to claim 1, is characterized in that: described chip fixes pin and external interface locking pin and all square contact conductings.

3. integrated New IGBT structure fixture according to claim 1, is characterized in that: the material of the plastic layer of described insulation is injection molding ambroin.