CN215999050U

CN215999050U - Novel power module terminal welding jig

Info

Publication number: CN215999050U
Application number: CN202122212274.5U
Authority: CN
Inventors: 李光
Original assignee: Shanghai Linzhong Electronic Technology Co ltd
Current assignee: Shanghai Linzhong Electronic Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-11
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a novel power module terminal welding jig, including terminal locating plate, anchor clamps and locating hole, anchor clamps are installed at the top of terminal locating plate, four group's connecting plates No. one are installed to the outer wall of locating plate, the outer wall of anchor clamps is equipped with the locating hole, the outer wall of pivot is encircleed and is installed the bolt cap. The utility model discloses an install locating plate and anchor clamps and fix the terminal, and terminal non-deformable after the welding is accomplished, anchor clamps have increaseed locating hole pitch design, simple and convenient non-deformable when the terminal is toward locating hole internally mounted, and the operability is strong, the terminal is when the terminal welds after the internally mounted of locating hole is good, it drives the pivot rotation to rotate the bolt cap, the locating plate removes to fix the terminal to the bottom of terminal, the back antiport pivot makes the locating plate remove and no longer fixes the terminal after the welding is accomplished, convenient dismantlement when dismantling anchor clamps, and dismantle the in-process because the pitch-up of locating hole, be difficult for causing the terminal to warp.

Description

Novel power module terminal welding jig

Technical Field

The utility model relates to a semiconductor device encapsulates technical field, specifically is a novel power module terminal welding jig.

Background

Power module terminal welding, accomplish together through welding the terminal with the module, and when carrying out tack welding to the terminal, welding jig becomes a necessary piece of positioning equipment when terminal tack welding, and traditional welding jig is close with the terminal size because the locating hole pitch must be designed, thereby lead to the terminal difficult anchor clamps of packing into and cause deformation and scotch to the terminal easily, and because terminal locating hole pitch is less, terminal and anchor clamps area of contact on the product are great, the resistance leads to very big when breaking away from anchor clamps after the product welding is accomplished hardly demolishs anchor clamps.

The existing power module terminal welding clamp has the defects that:

the comparison document CN209206664U discloses a through-furnace welding fixture for IGBT module packaging, and the right of protection "includes a three-layer fixture; the IGBT module package comprises a heat dissipation bottom plate, a DBC base, a chip unit, a power terminal and a signal terminal; the first layer of clamps are used for positioning the radiating bottom plate, the second layer of clamps and the third layer of clamps; the second layer of clamps are used for positioning the DBC base; the third layer of clamp is used for positioning the power terminal and the signal terminal; in a positioning state, the heat dissipation bottom plate is positioned and clamped in the first layer of clamp; the DBC base is positioned and clamped in the second layer of clamp, and the second layer of clamp is positioned and clamped in the first layer of clamp; the power and signal terminals penetrate through the positioning holes of the third layer of clamp and are positioned and clamped in the third layer of clamp, and the third layer of clamp is positioned and clamped in the first layer of clamp; the heat dissipation bottom plate is located the bottom, and second layer anchor clamps are located the intermediate level, and third layer anchor clamps are located the top. The utility model can improve the assembly efficiency and the welding quality, but when the clamp uses the positioning hole to position the terminal, the hole distance is close to the size of the terminal, thereby leading the terminal to be difficult to be arranged in the clamp and easy to cause deformation and scratch, and leading the resistance to be too large when the product is separated from the clamp, thus leading the clamp to be difficult to be dismantled;

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel power module terminal welding jig to solve the problem that the anchor clamps locating hole that proposes makes the terminal warp easily among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel power module terminal welding jig, includes terminal locating plate, anchor clamps and locating hole, anchor clamps are installed at the top of terminal locating plate, the locating hole comprises big rectangular channel and little rectangular channel, and the inside radius of big rectangular channel, and one side of little rectangular channel is the arc, and little rectangular channel is located the middle part of big rectangular channel, and the length of big rectangular channel is than little rectangle length will be long.

Preferably, four groups of first connecting plates are mounted on the outer wall of the positioning plate.

Preferably, the outer wall of the clamp is provided with a positioning hole.

Preferably, four groups of second connecting plates are mounted on the outer wall of the clamp, and the second connecting plates are located on one side of the positioning holes.

Preferably, the inner wall of No. two connecting plates runs through and installs the pivot, and the one end of pivot extends to the inner wall of a connecting plate.

Preferably, the outer wall of the rotating shaft is provided with a bolt cap in a surrounding manner.

Preferably, the fixed block is installed to the outer wall of anchor clamps, and the fixed block is located one side of No. two connecting plates, and the installation pipe is installed to the outer wall of fixed block, and the bolt is installed to the inner wall of installation pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an install locating plate and anchor clamps and fix the terminal, and terminal non-deformable after the welding is accomplished, anchor clamps have increaseed locating hole pitch design, used and taken out the formula intermediate lamella of inserting and fix a position, simple and convenient non-deformable when the terminal is toward locating hole internally mounted, the maneuverability is strong, the terminal is when the terminal welds to the terminal after the internally mounted of locating hole is good, it rotates to rotate the bolt cap drive pivot, the pivot rotates and makes the locating plate remove, the bottom that the locating plate removed to the terminal is fixed the terminal, the back antiport pivot makes the locating plate remove and no longer fixes the terminal after the welding is accomplished, convenient the dismantlement when dismantling anchor clamps, and dismantle the in-process because the pitch-row of locating hole increases, be difficult for causing the terminal to warp.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention;

FIG. 2 is a schematic view of the positioning holes and the fixture of the present invention;

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

fig. 4 is a schematic top view of the present invention.

In the figure: 1. positioning a plate; 2. a clamp; 3. a rotating shaft; 4. a bolt cap; 5. positioning holes; 6. a fixed block; 7. installing a pipe; 8. a bolt; 9. a second connecting plate; 10. a first connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: please refer to fig. 1, fig. 2, fig. 3 and fig. 4, a novel power module terminal welding fixture, which comprises a terminal positioning plate 1, a fixture 2 and a positioning hole 5, wherein the fixture 2 is installed at the top of the terminal positioning plate 1, the positioning hole is composed of a large rectangular groove and a small rectangular groove, the inside of the large rectangular groove is rounded, one side of the small rectangular groove is arc-shaped, the small rectangular groove is located in the middle of the large rectangular groove, the length of the large rectangular groove is longer than that of the small rectangular groove, four groups of one connecting plates 10 are installed on the outer wall of the positioning plate 1, the positioning plate 1 has a supporting function for the fixture 2, the fixture 2 conveniently welds the terminal through the positioning hole 5, and the positioning plate 1 has a supporting function for the one connecting plate 10.

Example 2: referring to fig. 1, 2, 3 and 4, the outer wall of a clamp 2 is provided with a positioning hole 5, the outer wall of the clamp 2 is provided with four groups of second connecting plates 9, the second connecting plates 9 are positioned at one side of the positioning hole 5, the inner wall of the second connecting plates 9 is provided with a rotating shaft 3 in a penetrating way, one end of the rotating shaft 3 extends to the inner wall of a first connecting plate 10, the outer wall of the rotating shaft 3 is provided with a bolt cap 4 in a surrounding way, the outer wall of the clamp 2 is provided with a fixing block 6, the fixing block 6 is positioned at one side of the second connecting plates 9, the outer wall of the fixing block 6 is provided with a mounting pipe 7, the inner wall of the mounting pipe 7 is provided with a bolt 8, the clamp 2 provides a mounting space for the positioning hole 5, the clamp 2 has a supporting effect on the second connecting plates 9, the second connecting plates 9 have a supporting effect on the rotating shaft 3, the rotating shaft 3 has a supporting effect on the bolt cap 4, and the clamp 2 has a supporting effect on the fixing block 6, fixed block 6 has a supporting role to installation pipe 7, installation pipe 7 provides installation space for bolt 8, anchor clamps 2 have increaseed 5 pitch-row designs of locating hole, it fixes a position to have used to take out the formula intermediate lamella of inserting, simple and convenient non-deformable when the terminal is toward 5 internally mounted of locating hole, high operability, the terminal is when welding the terminal after the internally mounted of locating hole 5 is good, it rotates to rotate bolt cap 4 drive pivot 3, pivot 3 rotates and makes locating plate 1 remove, locating plate 1 removes the bottom to the terminal and fixes the terminal, the back antiport pivot 3 makes locating plate 1 remove and no longer fixes the terminal after the welding is accomplished, convenient dismantlement when dismantling anchor clamps 2, and dismantle the in-process because the pitch-row of locating hole 5 increases, be difficult for causing the terminal to warp.

The theory of operation, at first anchor clamps 2 have increaseed the design of 5 pitch-row of locating holes, it fixes a position to have used taking out the formula intermediate lamella of inserting, simple and convenient non-deformable when the terminal is toward 5 internally mounted of locating hole, high operability, the terminal is when the terminal welding after the internally mounted of locating hole 5 is good, it drives pivot 3 rotation to rotate bolt cap 4, pivot 3 rotates and makes locating plate 1 remove, locating plate 1 removes and fixes the terminal to the bottom of terminal, 3 make locating plate 1 remove and no longer fix the terminal of contrarotation pivot after the welding is accomplished, convenient dismantlement when dismantling anchor clamps 2, and dismantle the in-process because the pitch-row of locating hole 5 increases, be difficult for causing the terminal to warp.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a novel power module terminal welding jig, includes locating plate (1), anchor clamps (2) and locating hole (5), its characterized in that: anchor clamps (2) are installed at the top of locating plate (1), locating hole (5) comprise big rectangular channel and little rectangular channel, and the inside radius of big rectangular channel, and one side of little rectangular channel is the arc, and little rectangular channel is located the middle part of big rectangular channel, and the length of big rectangular channel is longer than little rectangular length.

2. The novel power module terminal welding fixture of claim 1, characterized in that: four groups of one connecting plates (10) are mounted on the outer wall of the positioning plate (1).

3. The novel power module terminal welding fixture of claim 1, characterized in that: the outer wall of the clamp (2) is provided with a positioning hole (5).

4. The novel power module terminal welding fixture of claim 1, characterized in that: four sets of second connecting plates (9) are installed on the outer wall of the clamp (2), and the second connecting plates (9) are located on one side of the positioning holes (5).

5. The novel power module terminal welding fixture of claim 4, characterized in that: the inner wall of No. two connecting plates (9) runs through and installs pivot (3), and the one end of pivot (3) extends to the inner wall of a connecting plate (10).

6. The novel power module terminal welding fixture of claim 5, characterized in that: and the outer wall of the rotating shaft (3) is provided with a bolt cap (4) in a surrounding way.

7. The novel power module terminal welding fixture of claim 1, characterized in that: fixed block (6) are installed to the outer wall of anchor clamps (2), and fixed block (6) are located one side of No. two connecting plates (9), and installation pipe (7) are installed to the outer wall of fixed block (6), and bolt (8) are installed to the inner wall of installation pipe (7).