CN206633580U - A kind of silk screen coating unit for IGBT module - Google Patents

Abstract

The utility model discloses a kind of silk screen coating unit for IGBT module, including screen printing table, screen printing net plate, silk printing screen and for making the screen printing net plate freely be overturn on the screen printing table and the connector of adjustment position；The screen printing net plate is connected with the screen printing table by connector；The screen printing table is provided with the groove for being used for placing IGBT module, and the screen printing net plate is provided with the silk printing screen for covering the IGBT module and being coated.Using silk screen coating unit of the present utility model, the quality of IGBT module fin coated with thermally conductive glue is effectively increased.

Description

A kind of silk screen coating unit for IGBT module

Technical field

The utility model belongs to track traffic maintenance field, is related to a kind of silk screen coating unit for IGBT module.

Background technology

In the Variable flow control system of subway, because IGBT module has the advantages that driving power is small, power density is big, extensively It is general to apply in the traction invertor and subordinate inverter of train.But in actual use, due to the damage of IGBT module Need to change it, when installing new IGBT module, it is necessary to smear heat-conducting glue on fin in IGBT module, ensure IGBT module can reliably be run.

But for existing smearing mode to smear by hand, the heat-conducting glue that can not ensure to smear can be evenly distributed on IGBT module On fin, when smearing uneven, easily cause the explosion of IGBT module, not only cause expensive IGBT module scaling loss, also The accidents such as subway train failure, contact net tripping operation are caused to occur.

Utility model content

In order to overcome above-mentioned technological deficiency, the utility model provides a kind of silk screen coating unit for IGBT module, had Effect improves the smearing quality of heat-conducting glue.

In order to solve the above problems, the utility model is achieved by following technical scheme：

A kind of silk screen coating unit for IGBT module described in the utility model, including screen printing table, screen printing net plate, silk Printed network and for make the screen printing net plate freely overturn on the screen printing table and adjustment position connector；

The screen printing net plate is connected with the screen printing table by connector；The screen printing table, which is provided with, to be used to place IGBT module Groove, the screen printing net plate is provided with the silk printing screen for covering the IGBT module and being coated.

Further, the connector includes base and connection clip, and the base is connected with the connection clip by bearing pin.

Further, the connection clip includes upper folder and lower folder；The upper folder and the lower folder pass through Stud connection, described The wing nut that the screen printing net plate is clamped by the upper folder and the lower folder is additionally provided with stud.

Further, the base is fixed on one end of the screen printing table.

Further, the in-flanges for fixing IGBT module is additionally provided with the groove.

Further, the silk printing screen includes some organizine being interleaved with each other and some trams.

Further, the screen printing table bottom is provided with some adjustable carrying bolts.

Compared with prior art, the beneficial effects of the utility model are：IGBT module is placed on silk-screen by the utility model On platform, and the screen printing net plate with silk printing screen is covered, silk printing screen is passed through to coated with thermally conductive on the fin of IGBT module using scraper plate Glue, using this coating method, the coating quality of heat-conducting glue is effectively increased, it is uneven because heat-conducting glue coats to avoid IGBT module It is even and cause explosion the problem of, ensured the high efficiency operation of subway；Screen printing table can be with by connector screen printing net plate simultaneously Adjustment position, the function for the IGBT module that Multiple Type is coated on a coating unit is realized, improves the coating unit Use range.

Brief description of the drawings

Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings, wherein：

Fig. 1 is the schematic perspective view that the utility model embodiment provides；

Fig. 2 is the screen printing table schematic perspective view that the utility model embodiment provides；

Fig. 3 is the schematic perspective view of the screen printing net plate that the utility model embodiment provides and silk printing screen；

Fig. 4 is the schematic front view of connector, stud and wing nut that the utility model embodiment provides；

Fig. 5 is the schematic perspective view of connector, stud and wing nut that the utility model embodiment provides；

In figure：1- screen printing tables；2- screen printing net plates；3- dormant bolts；4- connectors；5- wing nuts；6- studs；7- silk-screens Net；8- carrying bolts；9- scraper plates；Pressed from both sides on 10-；Pressed from both sides under 11-；

Embodiment

Preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein excellent Select embodiment to be merely to illustrate and explain the utility model, be not used to limit the utility model.

As shown in Fig. 1~Fig. 5, a kind of silk screen coating unit for IGBT module described in the utility model, including silk Ink pad 1, screen printing net plate 2, silk printing screen 7.

The groove designed according to IGBT module is provided with the screen printing table 1, the varus with through hole is additionally provided with groove Side, when IGBT module is placed in groove, IGBT module is rested on in-flanges, and using screw bolt passes IGBT module and The through hole of in-flanges is fixed so that IGBT module will not be moved in operation, the smearing heat-conducting glue effectively ensured Stability.

In the present embodiment, the depth of groove in-flanges is exactly equal to the thickness of IGBT module so that is put into IGBT module After groove, the fin of IGBT module is exactly same level with the upper surface of screen printing table 1, silk printing screen 7 when ensure that coating Keep being bonded with the fin of IGBT module, avoid the fin of IGBT module causes to apply less than the upper surface of screen printing table 1 The problem of heat-conducting glue covered is blocked up, the effective guarantee coating quality of heat-conducting glue；IGBT module be it also avoid higher than screen printing table 1 Upper surface, and the problem of cause to pull silk printing screen 7, the normal use of silk screen coating unit has been effectively ensured.

One end of the screen printing table 1 is attached with one end of screen printing net plate 2 by connector 4 so that screen printing net plate 2 can Freely to be overturn on screen printing table 1, facilitate IGBT module to be put into screen printing table 1 or take out it from screen printing table 1, effectively improve The operating efficiency of coating operation.The screen printing table 1 is connected with screen printing net plate 2 by connector 4, also make it that screen printing net plate 2 can To adjust the position relative to screen printing table 1, make the silk printing screen 7 on screen printing net plate 2 that the IGBT being placed in groove can be completely covered The fin of module, it ensure that the fin in IGBT module can complete coated with thermally conductive glue.

The connector 4 is made up of base and connection clip, and the base is connected with connection clip using pivot pin, connector 4 Base is provided with two screws, for being fixed with screen printing table 1；The connection clip includes upper folder 10 and lower folder 11, lower folder 11 It is connected with pivot pin, stud 6 is provided with lower folder 11, upper folder 10 is arranged on stud 6 and can transported along the axis direction of stud 6 It is dynamic, wing nut 5 is additionally provided with stud 6.The upper folder 10 coordinates lower folder 11 to clamp screen printing net plate 2, and uses wing nut 5 Locked., can be after IGBT module be placed in the groove of screen printing table 1, moreover it is possible to silk using this connected mode Printed network plate is finely adjusted, and fin that not only can be in effective guarantee IGBT module can coated with thermally conductive glue completely, moreover it is possible to effectively suitable The IGBT module of a variety of different sizes is answered, improves the use range of the coating unit；Meanwhile using this connected mode, even During the IGBT module of continuous coating same size, it is not required to again be adjusted connection clip, directly opening screen printing net plate 2 just can realize IGBT module is taken out and placed on screen printing table 1, also improves the work efficiency of operation.

Silk printing screen 7 is additionally provided with the screen printing net plate 2, silk printing screen 7 is made using 60 mesh silk screens, and silk printing screen 7 is by some Organizine and some trams composition, organizine and tram are made using the silk thread of same thickness, and every organizine and the tram are all mutual Vertical intertexture forms network structure.Such design ensure that the mesh arrangement in silk printing screen is uniform so that during coated with thermally conductive glue, Ensure the coating thickness of heat-conducting glue in the range of 0.15-0.2mm, heat-conducting glue is uniformly distributed that to also ensure that IGBT module possesses good Good coating quality.

The lower section of screen printing table 1 is additionally provided with the carrying bolt 8 of some adjustment heights, ensures silk by adjusting carrying bolt 8 The upper surface keep level of ink pad 1, the stability of coating IGBT module is effectively ensured.

It is specific operating method below, to make to design, concrete structure and caused technique effect of the present utility model Further instruction：

(1) screen printing net plate 2 is opened, IGBT module is put on the groove of screen printing table 1, and ensures to place steadily；

(2) screen printing net plate 2 is covered, checks whether the silk printing screen 7 in screen printing net plate 2 is corresponding with IGBT module position；If There is deviation, first unclamp wing nut 5, readjust the position of screen printing net plate 2 so that silk printing screen 7 and the position phase of IGBT module It is corresponding, then tighten wing nut 5 so that above press from both sides 10 and the lower clamping screen printing net plate 2, then cover screen printing net plate 2 again of folder 11；

(3) poured on silk printing screen 7 and put enough heat-conducting glues；

(4) heat-conducting glue is equably scraped to the penetrating area into silk printing screen 7 using scraper plate 9；

(5) heat-conducting glue unnecessary in 7 penetrating area of silk printing screen is struck off, and removes heat-conducting glue unnecessary around；

(6) screen printing net plate 2 is opened, and checks whether the heat-conducting glue of IGBT module radiating surface coats uniformly；

(7) after ensuring the uniform coated with thermally conductive glue of IGBT module radiating surface, IGBT module is taken out.

It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal Limitation, it is therefore every without departing from the content of the technical scheme of the utility model, implement according to the technical essence of the utility model to more than Example any modification, equivalent variations and the modification made, in the range of still falling within technical solutions of the utility model.

Claims (7)

1. A kind of 1. silk screen coating unit for IGBT module, it is characterised in that：Including screen printing table, screen printing net plate, silk printing screen and For making the screen printing net plate freely overturn the connector of simultaneously adjustment position on the screen printing table；

   The screen printing net plate is connected with the screen printing table by connector；The screen printing table, which is provided with, to be used to place the recessed of IGBT module Groove, the screen printing net plate are provided with the silk printing screen for covering the IGBT module and being coated.
2. A kind of 2. silk screen coating unit for IGBT module according to claim 1, it is characterised in that：The connector Including base and connection clip, the base is connected with the connection clip by bearing pin.
3. A kind of 3. silk screen coating unit for IGBT module according to claim 2, it is characterised in that：The connection clip Including upper folder and lower folder；The upper folder and the lower folder pass through Stud connection, are additionally provided with the stud by the upper folder The wing nut of the screen printing net plate is clamped with the lower folder.
4. A kind of 4. silk screen coating unit for IGBT module according to claim 2, it is characterised in that：The base is consolidated It is scheduled on one end of the screen printing table.
5. A kind of 5. silk screen coating unit for IGBT module according to claim 1, it is characterised in that：In the groove It is additionally provided with the in-flanges for fixing IGBT module.
6. A kind of 6. silk screen coating unit for IGBT module according to claim 1, it is characterised in that：The silk printing screen Including some organizine being interleaved with each other and some trams.
7. A kind of 7. silk screen coating unit for IGBT module according to claim 1, it is characterised in that：The screen printing table Bottom is provided with some adjustable carrying bolts.