CN103785980A

CN103785980A - Welding jig for conducting column and gate electrode line of high-power thyristor

Info

Publication number: CN103785980A
Application number: CN201410037769.0A
Authority: CN
Inventors: 伊尔汉姆·玛绵多夫; 周慧杰
Original assignee: JIANGSU DELI SITE SEMICONDUCTOR TECHNOLOGY Co Ltd
Current assignee: JIANGSU DELI SITE SEMICONDUCTOR TECHNOLOGY Co Ltd
Priority date: 2014-01-27
Filing date: 2014-01-27
Publication date: 2014-05-14

Abstract

The invention discloses a welding jig for a conducting column and a gate electrode line of a high-power thyristor. The welding jig comprises a ring body placed on a base of the thyristor. The ring body is connected with two side boards. The upper end of one side board is bent by 90 degrees and then is in fixed lap joint with the upper end of the other side board. A connecting board formed between the two side boards is provided with a circular hole allowing the conducting column of the thyristor to pass through. One side board is connected with a connecting sheet and the connecting sheet is provided with a coiling block, wherein the gate electrode line of the thyristor can be sleeved with the coiling block. By the adoption of the structure, the ring body and the coiling block are used for locating, so that the relative positions of the conducting column and the gate electrode line in the welding process are guaranteed. Meanwhile, in the process of heating device removal, the ring body is directly removed, the conducting column and the gate electrode line can not be moved, so that the welding quality is further guaranteed, and the welding effect is greatly improved.

Description

High-power thyristor conductive pole and gate line weld jig

Technical field

The present invention relates to a kind of IGCT welding aid, specifically a kind of high-power thyristor conductive pole and gate line weld jig.

Background technology

IGCT is controller important in electricity field, traditionally, in IGCT welding process, conventionally adopt the mode of artificial positioning welding, concrete operation step is that the conductive pole of IGCT and gate line are first placed on the scolder of chip, and then the base of IGCT is placed on heater, then by heater, scolder is heated, after scolder dissolves and conductive pole, after gate line combination, removing heater carries out cooling, adopt existing this welding manner, when shifting out in the process that heater removes, conductive pole and gate line are easily shifted, affect greatly thus welding quality.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of simple in structure, easy to use, can guarantee high-power thyristor conductive pole and the gate line weld jig of welding quality, raising welding efficiency.

In order to solve the problems of the technologies described above, high-power thyristor conductive pole of the present invention and gate line weld jig, comprise a circle body on the base that is placed on IGCT, on circle body, be connected with two side plates, wherein the upper end of a side plate is bent into after 90 degree together with the upper end of an other side plate is fixed, on the connecting plate forming, is provided with the circular hole that can make the conductive pole of IGCT pass through between two side plates; Wherein on a slice side plate, be connected with a slice brace, on brace, there is a reel outside the gate line that can be enclosed within IGCT.

Described circle body and two side plates be by lower thin slice and be vertically connected to sliver on lower thin slice and and the main leaf body that forms of short thin slice form, described circle body is become by lower thin slice circle, described lower slice-shaped can make sliver and short thin slice differ 180 degree after becoming circle body, can make sliver along fixed on short thin slice after 90 degree bendings simultaneously; Described brace and reel are can be rolled into tubular structure by a slice one end, and the supplementary plate body that the other end can be connected on main leaf body forms; The rear flank that described auxiliary lamellar body is connected to main leaf body can make the tubular structure part of auxiliary lamellar body tilt to extend into the scolder place of IGCT base.

Described main leaf body and auxiliary lamellar body are made by aluminum foil material.

Described center of circular hole point is in the same center line with the center of circle of circle body.

Described auxiliary lamellar body is made up of mutually perpendicular two parts, and wherein a part is connected to a side of main leaf body, and a part is rolled into and adapts with thyristor gate polar curve and tubular structure that angle of inclination is identical with gate line angle of inclination in addition.

Adopt after above-mentioned structure, due to the reel outside the circle body that adapts of the base with IGCT arranging and the gate line that can be enclosed within IGCT, guaranteed thus the relative position of conductive pole and gate line in welding process by circle body and reel location, ought shift out in the process that heater removes simultaneously, directly circle body is removed, can not cause any displacement to conductive pole and gate line, further guarantee thus welding quality, welding effect has also improved greatly.

Accompanying drawing explanation

Fig. 1 is the structural representation of main leaf body and auxiliary lamellar body deployed condition in the present invention;

Fig. 2 is the perspective view of high-power thyristor conductive pole of the present invention and gate line weld jig;

Fig. 3 is the use status architecture schematic diagram of high-power thyristor conductive pole of the present invention and gate line weld jig.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, high-power thyristor conductive pole of the present invention and gate line weld jig are described in further detail.

As shown in the figure, first it should be noted that high-power thyristor comprises base 1, on the upper surface of base 1, be provided with chip 15, chip 15 need to be fixed by scolder with vertical conductive pole 8 and the gate line 5 being obliquely installed, high-power thyristor conductive pole of the present invention and gate line weld jig arrange in order to guarantee welding quality, it comprises a circle body 2 on the base 1 that is placed on IGCT, on circle body 2, be connected with two side plates 3, wherein the upper end of a side plate is bent into after 90 degree together with the upper end of an other side plate is fixed, on the connecting plate 9 forming between two side plates, be provided with the circular hole 7 that can make the conductive pole 8 of IGCT pass through, the center of circle of circular hole 7 central points and circle body 2 is in the same center line, wherein on a slice side plate, be connected with a slice brace 4, on brace 4, there is a reel 6 outside the gate line 5 that can be enclosed within IGCT.

It is to be noted, the preferred technical scheme of the present invention is: circle body 2 and two side plates 3 be by lower thin slice 10 and be vertically connected to a sliver 11 on lower thin slice 10 and and the main leaf body 13 that forms of short thin slice 12 form, circle body 2 is enclosed into by lower thin slice 12, lower thin slice 12 can make sliver 11 and short thin slice 12 differ 180 degree after forming circle body 2, can make sliver 11 along fixed on short thin slice 12 after 90 degree bendings simultaneously; Brace 4 and reel 6 are can be rolled into tubular structure by a slice one end, and the auxiliary lamellar body 14 that the other end can be connected on main leaf body 13 forms; The rear flank that auxiliary lamellar body 14 is connected to main leaf body 13 can make the tubular structure part of auxiliary lamellar body 14 tilt to extend into the scolder place of IGCT base, and wherein, main leaf body 13 and auxiliary lamellar body 14 are made by aluminum foil material; Said auxiliary lamellar body 14 is made up of mutually perpendicular two parts, and wherein a part is connected to a side of main leaf body 13, and a part is rolled into and adapts with thyristor gate polar curve 5 and tubular structure that angle of inclination is identical with gate line 5 angles of inclination in addition.

In welding process, concrete operation step is that the conductive pole of IGCT 8 and gate line 5 are first placed on the scolder of chip 15, then high-power thyristor conductive pole of the present invention and gate line weld jig are placed on high-power thyristor, and then the base of IGCT is placed on heater, then by heater, scolder is heated.

Claims

1. a high-power thyristor conductive pole and gate line weld jig, it is characterized in that: comprise a circle body (2) on the base (1) that is placed on IGCT, on described circle body (2), be connected with two side plates (3), wherein the upper end of a side plate is bent into after 90 degree together with the upper end of an other side plate is fixed, is provided with the circular hole (7) that can make the conductive pole (8) of IGCT pass through between described two side plates on the connecting plate (9) forming; Wherein on a slice side plate, be connected with a slice brace (4), on brace (4), there is an outer reel (6) of gate line (5) that can be enclosed within IGCT.

2. according to high-power thyristor conductive pole claimed in claim 1 and gate line weld jig, it is characterized in that: described circle body (2) and two side plates (3) be by lower thin slice (10) and be vertically connected to a sliver (11) on lower thin slice (10) and and the main leaf body (13) that forms of a short thin slice (12) form, described circle body (2) is enclosed into by lower thin slice (12), described lower thin slice (12) can make sliver (11) and short thin slice (12) differ 180 degree after forming circle body (2), can make sliver (11) along fixed on short thin slice (12) after 90 degree bendings simultaneously, described brace (4) and reel (6) are can be rolled into tubular structure by a slice one end, and the auxiliary lamellar body (14) that the other end can be connected on main leaf body (13) forms, the rear flank that described auxiliary lamellar body (14) is connected to main leaf body (13) can make the tubular structure part of auxiliary lamellar body (14) tilt to extend into the scolder place of IGCT base.

3. according to high-power thyristor conductive pole claimed in claim 2 and gate line weld jig, it is characterized in that: described main leaf body (13) and auxiliary lamellar body (14) are made by aluminum foil material.

4. according to high-power thyristor conductive pole claimed in claim 1 and gate line weld jig, it is characterized in that: the center of circle of described circular hole (7) central point and circle body (2) is in the same center line.

5. according to high-power thyristor conductive pole claimed in claim 2 and gate line weld jig, it is characterized in that: described auxiliary lamellar body (14) is made up of mutually perpendicular two parts, wherein a part is connected to a side of main leaf body (13), and a part is rolled into and adapts with thyristor gate polar curve (5) and tubular structure that angle of inclination is identical with gate line (5) angle of inclination in addition.