CN111644725A

CN111644725A - Transistor welding jig

Info

Publication number: CN111644725A
Application number: CN202010657895.1A
Authority: CN
Inventors: 王坤; 吴相军
Original assignee: Goodwe Power Supply Technology Guangde Co Ltd
Current assignee: Goodwe Power Supply Technology Guangde Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-09-11

Abstract

The invention discloses a transistor welding jig which comprises a base, wherein a tray is arranged on the base, a PCBA board is placed on the tray, an upper cover plate is arranged on the tray, the PCBA board is located between the tray and the upper cover plate, a transistor pressing strip is placed on the PCBA board, a transistor is placed on the transistor pressing strip, pins of the transistor are inserted into pin inserting holes of the PCBA board, and anti-static elastic foam is arranged between the transistor and the transistor pressing strip. The welding jig replaces the complex action of disassembling the screw, improves the production efficiency, greatly reduces the damage frequency of the jig, reduces the maintenance cost of the jig and greatly prolongs the service life of the jig; weld from the PCBA board back, the effectual everywhere that blocks the tin pearl of window design of upper cover plate splashes, should have no other components and parts except that the transistor for the PCBA board back simultaneously, does not have the risk that the tin pearl card caused the short circuit in the electronic components pin, and the effectual quality that improves the product need not to use high temperature sticky tape, reduces manufacturing cost.

Description

Transistor welding jig

Technical Field

The invention relates to the field of transistor welding, in particular to a transistor welding jig.

Background

The theory of operation of PCBA board transistor welding tool among the prior art, a smooth steel sheet is as the base, erect on the steel sheet and weld a plurality of height and be 10 +/-0.1 mm screwed hole's rivet post, insert the back of PCBA board with the transistor in advance, and fix the transistor with the thick high temperature sticky tape of 0.2mm in advance, detain the PCBA board on the tool, squeeze into the screw hole of rivet from the locating hole of PCBA board to the screw, rectify the dull and stereotyped face when playing fixed PCBA board effect, the cooling surface of transistor can laminate the steel plate face of tool under the effect of gravity, thereby guarantee that the cooling surface is apart from the height at the PCBA board back 10.2 +/-0.1 mm, weld from the front of PCBA board with the mode of soldering, the defect and the problem point of original PCBA board transistor welding tool: the screw locking and attaching actions of a plurality of positioning holes are required to be carried out when one PCBA is welded, so that the actions are complicated and the working hours are wasted; the threaded hole of the rivet can not bear repeated screw locking actions for a long time, and the service life of a single rivet is about 2 months on average; the PCBA board needs to be welded from the front side, and tin bead explosion occurs in the welding process. The front side has a plurality of chips, and tin balls are easily blocked in pins of the chips or other electronic components to cause short circuit, so that a fryer is caused; the jig cannot be butted with an automatic tin soldering robot, and the process cannot be developed to the direction of automation, intellectualization and no humanization; this tool wastes a large amount of high temperature sticky tape.

Disclosure of Invention

The invention aims to provide a transistor welding jig, a tray is placed on a tray supporting column, the tray is limited through a limiting angle plate, a PCBA board is placed in the tray, an upper cover plate is placed on a base to limit the tray, a transistor pressing strip is attracted under the action of a second magnet and a third magnet at the moment, so that a height difference is formed between the transistor and the PCBA board, pins of the transistor are welded on the PCBA board through welding holes, the fussy action of disassembling screws is replaced, the production efficiency is improved, the damage frequency of the jig is greatly reduced, the maintenance cost of the jig is reduced, and the service life of the jig is greatly prolonged; the back of the PCBA is welded, the window design of the upper cover plate effectively prevents the solder balls from splashing everywhere, meanwhile, no other component except the transistor is arranged on the back of the PCBA, the risk of short circuit caused by the solder balls clamped in pins of electronic components is avoided, and the product quality is effectively improved; the high-temperature adhesive tape is not needed, and the manufacturing cost is reduced.

The purpose of the invention can be realized by the following technical scheme:

transistor welding tool, welding tool include the base, be equipped with the tray on the base, placed the PCBA board on the tray, be equipped with the upper cover plate on the tray, the PCBA board is located between tray and the upper cover plate, has placed the transistor layering on the PCBA board, has placed the transistor on the transistor layering, and in the pin plug-in hole of PCBA board was inserted to the pin of transistor, be equipped with the elastic foam of antistatic between transistor and the transistor layering.

Further, the base includes the bottom plate, is equipped with the spacing post of array distribution on the bottom plate, and the one end and the bottom plate fastening connection of spacing post, the other end are equipped with spacing scute, the tray support column and the PCBA board support column of array distribution on the bottom plate.

Further, be equipped with in the tray and place the hole, place downthehole being equipped with the support bar, the tray is placed on the base, supports through the tray support column, and is spacing through spacing scute, and when the tray was placed on the tray support column, the tray was located same horizontal plane with spacing scute.

Further, the PCBA board is placed in the placing hole and supported through the supporting bars.

Furthermore, the transistor pressing strip comprises a pressing strip main body, third magnets which are symmetrically distributed are arranged on the pressing strip main body, the pressing strip main body is provided with placing grooves which are distributed in an array mode, and elastic foam is located in the placing grooves and used for carrying out buffering protection on the transistors.

Further, the upper cover plate comprises a cover plate main body, welding holes are formed in the cover plate main body, limiting columns distributed in an array mode are arranged below the cover plate main body, first magnets distributed in an array mode are arranged on the cover plate main body, second magnets distributed symmetrically are arranged on the cover plate main body, the upper cover plate is attracted on a limiting angle plate through the first magnets, and meanwhile the first magnets limit the tray.

Furthermore, the transistor pressing strip is attracted under the action of the second magnet and the third magnet, so that a height difference is formed between the transistor and the PCBA, and pins of the transistor are welded on the PCBA through welding holes.

The invention has the beneficial effects that:

1. according to the welding jig, the tray is placed on the tray supporting column, the limiting is carried out through the limiting angle plate, the PCBA is placed in the tray, the upper cover plate is placed on the base to limit the tray, the transistor pressing strip is attracted under the action of the second magnet and the third magnet at the moment, so that the height difference is formed between the transistor and the PCBA, and the pins of the transistor are welded on the PCBA through the welding holes, so that the complex screw disassembling action is replaced, the production efficiency is improved, the damage frequency of the jig is greatly reduced, the maintenance cost of the jig is reduced, and the service life of the jig is greatly prolonged;

2. the welding jig provided by the invention is used for welding from the back of the PCBA, the window design of the upper cover plate effectively prevents solder balls from splashing everywhere, meanwhile, no other components except transistors are arranged on the back of the PCBA, the risk of short circuit caused by the solder balls clamped in pins of electronic components is avoided, the product quality is effectively improved, a high-temperature adhesive tape is not needed, and the manufacturing cost is reduced.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is an exploded view of a welding jig according to the present invention;

FIG. 2 is a schematic view of a welding jig according to the present invention;

FIG. 3 is a schematic view of the base structure of the present invention;

FIG. 4 is a schematic view of a part of the welding jig of the present invention;

FIG. 5 is a schematic view of the structure of the upper cover plate of the present invention;

FIG. 6 is a schematic view of a part of the welding jig of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Transistor welding tool, welding tool includes base 1, as shown in fig. 1, fig. 2, be equipped with tray 2 on the base 1, placed PCBA (circuit board that has electronic component) board 3 on the tray 2, be equipped with upper cover plate 4 on the tray 2, PCBA board 3 is located between tray 2 and the upper cover plate 4, placed transistor layering 5 on the PCBA board 3, placed transistor 6 on the transistor layering 5, the pin of transistor 6 inserts in the pin jack of PCBA board 3, be equipped with antistatic elastic foam 7 between transistor 6 and the transistor layering 5.

The base 1 comprises a bottom plate 11, wherein the bottom plate 11 is provided with limiting columns 12 distributed in an array manner, one ends of the limiting columns 12 are fixedly connected with the bottom plate 11, the other ends of the limiting columns are provided with limiting angle plates 14, and tray supporting columns 13 and PCBA supporting columns 15 distributed in an array manner are arranged on the bottom plate 11.

Be equipped with in the tray 2 and place hole 21, place and be equipped with support bar 22 in the hole 21, tray 2 places on base 1, supports through tray support post 13, carries on spacingly through spacing scute 14, and when tray 2 placed on tray support post 13, tray 2 was located same horizontal plane with spacing scute 14.

The PCBA board 3 is placed in the placement hole 21, and is supported by the support bars 22.

The transistor pressing strip 5 comprises a pressing strip main body 51, as shown in fig. 4, third magnets 52 are symmetrically distributed on the pressing strip main body 51, the pressing strip main body 51 is provided with placing grooves 53 distributed in an array manner, as shown in fig. 6, the elastic foam 7 is located in the placing grooves 53, and the transistor 6 is protected in a buffering manner.

The upper cover plate 4 includes a cover plate main body 41, as shown in fig. 5, the cover plate main body 41 is provided with a welding hole 42, a limiting column 45 arranged in an array distribution is arranged below the cover plate main body 41, the cover plate main body 41 is provided with a first magnet 43 arranged in an array distribution, the cover plate main body 41 is provided with a second magnet 44 arranged in a symmetrical distribution, the upper cover plate 4 is attracted on the limiting angle plate 14 through the first magnet 43, and the first magnet 43 limits the tray 2.

The transistor pressing strip 5 is attracted under the action of the second magnet 44 and the third magnet 52, so that a height difference is formed between the transistor 6 and the PCBA board 3, and pins of the transistor 6 are welded on the PCBA board 3 through the welding holes 42.

When the device is used, the tray 2 is placed on the tray supporting column 13, the limiting is carried out through the limiting angle plate 14, the PCBA board 3 is placed in the tray 2, the upper cover plate 4 is placed on the base 1 to limit the tray 2, at the moment, the transistor pressing strip 5 is attracted under the action of the second magnet 44 and the third magnet 52, so that a height difference is formed between the transistor 6 and the PCBA board 3, pins of the transistor 6 are welded on the PCBA board 3 through the welding holes 42, the tedious screw disassembling action is replaced, the production efficiency is improved, the damage frequency of the jig is greatly reduced, the maintenance cost of the jig is reduced, and the service life of the jig is greatly prolonged; the back of the PCBA is welded, the window design of the upper cover plate effectively prevents the solder balls from splashing everywhere, meanwhile, no other component except the transistor is arranged on the back of the PCBA, the risk of short circuit caused by the solder balls clamped in pins of electronic components is avoided, and the product quality is effectively improved; the high-temperature adhesive tape is not needed, and the manufacturing cost is reduced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. Transistor welding tool, welding tool include base (1), a serial communication port, be equipped with tray (2) on base (1), placed PCBA (circuit board that has electronic component) board (3) on tray (2), be equipped with upper cover plate (4) on tray (2), PCBA board (3) are located between tray (2) and upper cover plate (4), placed transistor layering (5) on PCBA board (3), placed transistor (6) on transistor layering (5), the pin of transistor (6) inserts in the pin jack of PCBA board (3), be equipped with between transistor (6) and transistor layering (5) and prevent elastic foam (7) of static.

2. The transistor welding jig according to claim 1, characterized in that the base (1) comprises a bottom plate (11), the bottom plate (11) is provided with limiting columns (12) distributed in an array, one ends of the limiting columns (12) are fixedly connected with the bottom plate (11), the other ends of the limiting columns are provided with limiting angle plates (14), and the bottom plate (11) is provided with tray supporting columns (13) and PCBA supporting columns (15) distributed in an array.

3. The transistor welding jig of claim 2, wherein a placing hole (21) is formed in the tray (2), a supporting bar (22) is formed in the placing hole (21), the tray (2) is placed on the base (1) and supported by the tray supporting column (13), and is limited by the limiting angle plate (14), and when the tray (2) is placed on the tray supporting column (13), the tray (2) and the limiting angle plate (14) are located on the same horizontal plane.

4. The transistor welding jig according to claim 3, characterized in that the PCBA board (3) is placed in the placing hole (21) and supported by a support bar (22).

5. The transistor welding jig according to claim 1, wherein the transistor pressing strip (5) comprises a pressing strip main body (51), third magnets (52) are symmetrically distributed on the pressing strip main body (51), the pressing strip main body (51) is provided with placing grooves (53) distributed in an array mode, and the elastic foam (7) is located in the placing grooves (53) and used for buffering and protecting the transistor (6).

6. The transistor welding jig of claim 2, wherein the upper cover plate (4) comprises a cover plate main body (41), welding holes (42) are formed in the cover plate main body (41), limiting columns (45) distributed in an array mode are arranged below the cover plate main body (41), first magnets (43) distributed in an array mode are arranged on the cover plate main body (41), second magnets (44) distributed in a symmetrical mode are arranged on the cover plate main body (41), the upper cover plate (4) is attracted to the limiting angle plate (14) through the first magnets (43), and meanwhile the first magnets (43) limit the tray (2).

7. The transistor welding jig according to claim 6, characterized in that the transistor pressing bar (5) is attracted under the action of the second magnet (44) and the third magnet (52), so that a height difference is formed between the transistor (6) and the PCBA board (3), and pins of the transistor (6) are welded on the PCBA board (3) through the welding holes (42).