Three-pin IGBT module pin shaping tool

Abstract

The utility model discloses a three-pin I-GBT module pin shaping tool which comprises a shaping plate, a plurality of shaping grooves are formed in the shaping plate, each shaping groove comprises a guide hole and a correction hole, the correction holes and the guide holes are sequentially arranged up and down along the shaping plate and are communicated with each other, the correction holes are arranged to be in a rectangular shape corresponding to pins, and the guide holes are arranged in the shaping plate. And the guide hole is conical. When the pins on the IGBT module need to be corrected through the shaping plate, the pins are aligned with the guide holes, and the guide holes are conical inlet holes, so that the pins can be guided, the pins can smoothly enter the correction holes and reach preset positions, subsequent butt joint of the pins and a PCB is facilitated, and the production efficiency is improved. In the process that a person holds the shaping plate to directly insert a pin into the shaping plate, due to space limitation of the shaping plate, the shaping plate cannot be held by the hand easily, and the pin is prone to stabbing or scratching the hand, the shaping plate is clamped between the two clamping plates, and the auxiliary plate is pressed downwards, so that the shaping plate is pressed downwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component assembly technical field especially relates to 3 foot IGBT module pin shaping frock. BACKGROUND

[0002] IGBT, as the core semiconductor device in the field of power electronics, its importance is self-evident. This insulated gate bipolar transistor not only has high input impedance, low on-resistance and fast switching and other excellent characteristics, but also is widely used in electric vehicles, frequency converters, solar inverters and other fields. In the manufacturing process of IGBT, the pin shaping process is a crucial link. It requires very high precision and stability, because the shape and position of the pin directly affect the connection quality between IGBT and PCB, and then affect the performance and reliability of the entire power electronic system.

[0003] However, the traditional IGBT module often faces the problem of pin displacement after leaving the factory. This is mainly due to the vibration and impact during transportation, which can cause the pins of IGBT to shift slightly. Although this shift seems small, it can cause great trouble when assembling with the PCB later. Installation is difficult, alignment is not accurate, and even IGBT or PCB may be damaged due to forced installation. In order to avoid this situation, additional manual shaping is often required, which not only increases labor costs, but also risks breaking IGBT during shaping, further reducing production efficiency and product yield. Therefore, how to optimize the pin shaping process of IGBT and improve its resistance to transportation vibration has become a technical problem to be solved in the current power electronics field. SUMMARY

[0004] The utility model aims at providing 3 foot IGBT module pin shaping frock to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: 3 foot IGBT module pin shaping frock, including shaping plate, a plurality of shaping grooves are set up on the shaping plate, the shaping groove includes guide hole and correction hole, the correction hole and guide hole are sequentially arranged up and down along the shaping plate and are communicated with each other.

[0006] As a further description of the above technical scheme: the correction hole is set as a rectangular shape corresponding to the pin, and the guide hole is set as a conical shape.

[0007] As a further description of the above technical scheme: the top end of the shaping plate is provided with an auxiliary mounting assembly, the auxiliary mounting assembly includes an auxiliary plate and two clamping plates, and the clamping plates are arranged on both sides of the shaping plate.

[0008] As a further description of the above technical solutions: the bottom end of the auxiliary plate is provided with two sliding grooves, the clamping plates are in sliding connection with the sliding grooves, a first spring is fixedly installed in the interior of the sliding groove, one end of the first spring is fixedly connected with the sliding groove, and the other end of the first spring is fixedly connected with the side wall of the clamping plate.

[0009] As a further description of the above technical solutions: two clamping plates are provided with grooves on the side close to the shaping plate, and the length of the groove is adapted to the thickness of the shaping plate.

[0010] As a further description of the above technical solutions: the bottom end of the clamping plate is provided with a wedge surface.

[0011] As a further description of the above technical solutions: the top end of the auxiliary plate is provided with a reset groove, a second spring is arranged in the interior of the reset groove, the top end of the second spring is connected with an elastic sheet, the middle section of the elastic sheet is upwardly protruding in the interior of the reset groove, and the two ends of the elastic sheet are connected with the clamping plate by penetrating through the reset groove and the sliding groove.

[0012] The utility model provides 3 foot IGBT module needle foot shaping frock, has the following beneficial effects:

[0013] 1, when needing to correct the needle foot on the IGBT module through the shaping plate, first align the needle foot with the guide hole, the guide hole is tapered entry hole, can guide the needle foot, make the needle foot can enter the correction hole smoothly, make the needle foot can reach the preset position, convenient subsequent needle foot and PCB board butt joint.

[0014] 2, considering the process that the hand holds the shaping plate and directly inserts the needle foot, because of the space limitation of the shaping plate, the hand is not good to hold, and in the installation process, the needle foot is easy to prick or scratch the hand, through the shaping plate is clamped between the two clamping plates, through the auxiliary plate is pressed down, further realizes the shaping plate is pressed down, realizes the butt joint of the shaping plate and the needle foot.

[0015] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, rather than intended to limit the present disclosure.

[0016] This application file provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides 3 foot IGBT module needle foot shaping frock's whole three dimensional structure schematic diagram for the utility model;

[0018] Figure 2 It is three dimensional structure schematic diagram of another visual angle for the utility model;

[0019] Figure 3 is a top view structural schematic diagram of the utility model;

[0020] Figure 4 is a sectional view structural schematic diagram of the utility model;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the utility model installed on the pin;

[0022] Figure 6 is a top view structural schematic diagram of the utility model installed on the pin;

[0023] Figure 7 is a three-dimensional structural schematic diagram of the auxiliary installation assembly in the second embodiment of the utility model;

[0024] Figure 8 is a sectional view structural schematic diagram of the auxiliary installation assembly of the utility model.

[0025] Legend:

[0026] 1, shaping plate; 2, correction hole; 3, guide hole; 4, main plate; 5, IGBT module; 6, pin; 7, auxiliary plate; 8, clamping plate; 9, sliding groove; 10, first spring; 11, recess; 12, wedge surface; 13, elastic sheet; 14, second spring; 15, reset slot. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0028] Embodiment 1

[0029] With reference to Figures 1-6 , the three-pin IGBT module pin shaping tool includes a shaping plate 1, a plurality of shaping grooves are formed in the shaping plate 1, the shaping grooves include guide holes 3 and correction holes 2, the positions of the correction holes 2 and the guide holes 3 are sequentially arranged up and down and are communicated with each other; when it is needed to correct the pins 6 on the IGBT module 5 by the shaping plate 1, first align the pins 6 with the guide holes 3, the guide holes 3 are tapered entry holes, can guide the pins 6, so that the pins 6 can smoothly enter the correction holes 2, so that the pins 6 can reach the preset position, facilitate subsequent butt joint of the pins 6 and the PCB board.

[0030] As a preferred technical scheme of the embodiment, the correction hole 2 is arranged in a rectangular shape corresponding to the needle 6, and the guide hole 3 is arranged in a tapered shape; the guide hole 3 is a tapered hole, which can guide the needle 6 to smoothly enter the correction hole 2, and the shape of the correction hole 2 corresponds to the shape of the needle 6, so that the correction effect can be achieved.

[0031] Embodiment 2

[0032] The embodiment is implemented on the basis of the above-mentioned embodiment 1, and refers to Figure 7 and Figure 8 The top end of the shaping plate 1 is provided with an auxiliary mounting assembly, the auxiliary mounting assembly comprises an auxiliary plate 7 and two clamping plates 8, and the clamping plates 8 are arranged on both sides of the shaping plate 1; considering that the hand directly inserts the needle 6 into the shaping plate 1 during the process of holding the shaping plate 1, the hand is not easy to hold due to the space limitation of the shaping plate 1, and the needle 6 is easy to scratch or cut the hand during the installation process, the shaping plate 1 is clamped between the two clamping plates 8, and the auxiliary plate 7 is further pressed down to realize the pressing down of the shaping plate 1, so that the shaping plate 1 is connected with the needle 6.

[0033] As a preferred technical scheme of the embodiment, the bottom end of the auxiliary plate 7 is provided with two sliding grooves 9, the clamping plates 8 are slidably connected with the sliding grooves 9, the first spring 10 is fixedly installed in the inside of the sliding groove 9, one end of the first spring 10 is fixedly connected with the sliding groove 9, and the other end of the first spring 10 is fixedly connected with the side wall of the clamping plate 8; after the two clamping plates 8 are slid outward and the shaping plate 1 is clamped between the two clamping plates 8, the clamping plates 8 are clamped on both sides of the shaping plate 1 under the action of the first spring 10, so that the shaping plate 1 is fixed.

[0034] As a preferred technical scheme of the embodiment, the side of the two clamping plates 8 close to the shaping plate 1 is provided with a recess 11, and the length of the recess 11 is matched with the thickness of the shaping plate 1; the recess 11 can well clamp the shaping plate 1, so that the shaping plate 1 cannot fall off from between the clamping plates 8.

[0035] As a preferred technical scheme of the embodiment, the bottom end of the clamping plate 8 is provided with a wedge surface 12; the wedge surface 12 can facilitate clamping the shaping plate 1 between the two clamping plates 8, the wedge surface 12 can be relatively extruded with the side wall of the shaping plate 1, so that the clamping plate 8 can automatically slide outward, and when the shaping plate 1 moves to the position of the recess 11, the clamping plate 8 clamps the shaping plate 1 in the middle under the action of the first spring 10.

[0036] As a preferred technical scheme of the embodiment, the top end of the auxiliary plate 7 is provided with a reset slot 15, the inside of the reset slot 15 is provided with a second spring 14, the top end of the second spring 14 is connected with an elastic sheet 13, the middle section of the elastic sheet 13 is upwardly protruded in the inside of the reset slot 15, and the two ends of the elastic sheet 13 are respectively connected with the clamping plate 8 through the reset slot 15 and the sliding slot 9; when the auxiliary plate 7 and the clamping plate 8 need to be taken off from the shaping plate 1, the elastic sheet 13 is pressed downward, the two ends of the elastic sheet 13 push the clamping plate 8 to the two sides, the separation of the clamping plate 8 and the shaping plate 1 is realized, and the clamping plate 8 can be detached from the shaping plate 1.

[0037] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A pin shaping tool for 3-pin IGBT modules, comprising a shaping plate (1), characterized in that The shaping plate (1) is provided with a plurality of shaping grooves, including guide holes (3) and correction holes (2), the correction holes (2) and guide holes (3) are sequentially arranged up and down along the shaping plate (1) and are communicated with each other.

2. The 3-pin IGBT module pin shaping tooling of claim 1, wherein, The correction holes (2) are set as rectangular shape corresponding to the needle (6), and the guide holes (3) are set as conical shape.

3. The 3-pin IGBT module pin shaping tooling of claim 1, wherein, The top end of the shaping plate (1) is provided with an auxiliary mounting assembly, which includes an auxiliary plate (7) and two clamping plates (8), the clamping plates (8) are arranged on both sides of the shaping plate (1).

4. The 3-pin IGBT module pin shaping tooling of claim 3, wherein, The bottom end of the auxiliary plate (7) is provided with two sliding grooves (9), the clamping plates (8) are slidably connected with the sliding grooves (9), the first spring (10) is fixedly installed in the sliding groove (9), one end of the first spring (10) is fixedly connected with the sliding groove (9), and the other end of the first spring (10) is fixedly connected with the side wall of the clamping plate (8).

5. The 3-pin IGBT module pin shaping tooling of claim 4, wherein, The two clamping plates (8) are provided with grooves (11) on the side close to the shaping plate (1), the length of the groove (11) is matched with the thickness of the shaping plate (1).

6. The 3-pin IGBT module pin shaping tooling of claim 3, wherein, The bottom end of the clamping plate (8) is provided with a wedge surface (12).

7. The 3-pin IGBT module pin shaping tooling of claim 3, wherein, The top end of the auxiliary plate (7) is provided with a reset slot (15), the second spring (14) is arranged in the reset slot (15), the top end of the second spring (14) is connected with an elastic sheet (13), the middle section of the elastic sheet (13) is upwardly protruded in the reset slot (15), and the two ends of the elastic sheet (13) are respectively connected with the clamping plate (8) through the reset slot (15) and the sliding groove (9).

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