IGBT (Insulated Gate Bipolar Translator) device pin shape righting device
By using a limiting plate and insert plate structure to straighten the pins of IGBT devices, the problems of low straightening efficiency and device damage in the existing technology are solved, and efficient and non-damaging pin straightening is achieved.
Patent Information
- Application Number
- CN202422890689.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In the existing technology, the pin straightening efficiency of IGBT devices is low and the device function is easily damaged.
The pins are shaped using a limiting plate and insert plate structure, and flattened with the aid of a flattening groove and spring. The pins can be shaped in various ways using an isosceles trapezoidal insert plate and guide rod structure to avoid damage.
It improves orthodontic efficiency, ensures the integrity of device function, and avoids damage to the device during the orthodontic process.
Smart Images
Figure CN223506121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semiconductor device processing technology, and in particular to an IGBT device pin straightening device. Background Technology
[0002] like Figure 4 The diagram shows the structure of an IGBT device, which includes a package 5 and three pins 50 mounted on the package 5. During manufacturing, bending of the pins 50 is unavoidable, such as pins bending close together or bending outwards. For some devices with these defects, the function is not lost, and the pins 50 can be reprocessed by straightening. Currently, pin 50 straightening often involves bending with pliers, which is inefficient and can easily damage the device's functionality during the process. Utility Model Content
[0003] This invention provides an IGBT device pin straightening device to overcome the shortcomings of the prior art, solve the problem of low straightening efficiency, and avoid damage to the device's function, thus having strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:
[0005] An IGBT device pin straightening device includes a pair of vertically oriented support legs. Each support leg has a limiting plate at its upper end, with a gap between the limiting plates. During pin straightening, the IGBT device passes through the gap, and the limiting plates restrict movement on both sides of the package. A pair of concave seats are mounted on both sides of the limiting plates, each with a pair of insertion holes. Insert plates pass through these holes, and end plates are located on the outer ends of the insert plates. When the IGBT device pin passes through the insert plates, the sides of the insert plates act on the sides of the pin to straighten it, thereby straightening pins that are close to or far from adjacent pins. Furthermore, during the straightening process, the insert plates and the inner walls of the concave seats restrict movement on the pin, preventing damage to the IGBT device.
[0006] A pair of pressure plates are provided between the support legs. The inner wall of the pressure plates has multiple flattening grooves. The pressure plates act on the pins of the IGBT device to flatten them. The flattening grooves can flatten the pins so that pins that are raised or bent downwards can be flattened and made into a straight structure.
[0007] Furthermore, in order to insert the insert plate between the pins with small spacing and thus perform a pin straightening operation, the insert plate is set in an isosceles trapezoidal structure with its inclined surface facing upwards.
[0008] Furthermore, to facilitate the movement of the pressure plate, at least one guide rod is provided on the support leg. Both ends of the guide rod extend outward, and L-shaped seats are respectively fitted on both ends of the guide rod. The inner end of the L-shaped seat is installed on the pressure plate, and a spring is provided on the inner side of the L-shaped seat. The spring is fitted on the guide rod and is located on the outer side of the support leg.
[0009] Furthermore, to facilitate the flattening and straightening operation of the pins using the pressure plate, horizontal plates are installed at both ends of the guide rod. The horizontal plates have inner extension plates, and rotating top plates are rotatably mounted on the inner extension plates. The inner end of the rotating top plates acts on the outer wall of the pressure plate, and the outer end of the rotating top plates has a strip-shaped hole. A pull rod passes through the strip-shaped hole, and the outer end of the pull rod has a pull arm. An outer pull plate is installed on the outer end of the pull arm, and a pair of guide rods pass through the outer pull plate. The guide rods are mounted on the support legs.
[0010] Furthermore, in order to facilitate the movement of the outer pull plate, a concave rod is installed on the outer pull plate.
[0011] The advantages of the above technical solution are:
[0012] This invention facilitates the correction of various morphological deformations of IGBT device pins and significantly improves the correction effect and efficiency. Attached Figure Description
[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.
[0014] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .
[0015] Figure 2 A magnified view of point A is shown.
[0016] Figure 3 A three-dimensional structure of one embodiment is shown. Figure 2 .
[0017] Figure 4 A three-dimensional structural diagram of an IGBT device is shown. Detailed Implementation
[0018] like Figures 1-4As shown, an IGBT device pin straightening device includes a pair of support legs 1, which are vertically arranged. A limiting plate 10 is provided at the upper end of each support leg 1, and there is a gap between the limiting plates 10. During pin straightening, the IGBT device passes through the gap. A pair of concave seats 2 are installed on both sides of the limiting plates 10. A pair of insertion holes 20 are provided on the concave seats 2, and insertion plates 22 are inserted into the insertion holes 20. The insertion plates 22 have an isosceles trapezoidal structure with their inclined surfaces facing upwards. An end plate 21 is provided at the outer end of the insertion plate 22. When the pin of the IGBT device passes through the insertion plate 22, the two sides of the insertion plate 22 act on the two sides of the pin to straighten the pin of the IGBT device.
[0019] A pair of pressure plates 41 are provided between the support legs 1. The inner wall of the pressure plates 41 has multiple flattening grooves. The pressure plates 41 act on the pins of the IGBT device to flatten them. At least one guide rod 3 is provided on the support leg 1. Both ends of the guide rod 3 extend outward. L-shaped seats 40 are respectively fitted on both ends of the guide rod 3. The inner end of the L-shaped seat 40 is installed on the pressure plate 41. A spring 30 is provided on the inner side of the L-shaped seat 40. The spring 30 is fitted on the guide rod 3 and is located on the outer side of the support leg 1. A horizontal plate 31 is installed at both ends of the guide rod 3. An inner extension plate 32 is provided on the horizontal plate 31. A rotating top plate 33 is rotatably provided on the inner extension plate 32. The inner end of the rotating top plate 33 acts on the outer wall of the pressure plate 41. A strip hole 34 is opened at the outer end of the rotating top plate 33. A pull rod 35 passes through the strip hole 34. A pull arm 36 is provided at the outer end of the pull rod 35. An outer pull plate 37 is installed at the outer end of the pull arm 36. A pair of guide rods 39 pass through the outer pull plate 37. The guide rods 39 are installed on the support leg 1. A concave rod 38 is installed on the outer pull plate 37.
[0020] When the pins of pin 50 are close to or far apart during the correction process, pin 50 can be inserted into the concave seat 2, and then the insert plate 22 can be inserted at the normal spacing of pin 50. Then, the IGBT device is pulled upward. When pin 50 moves outward, the insert plate 22 corrects pin 50 and makes pin 50 in a normal posture.
[0021] If the pin 50 is bent upwards or downwards, the operator inserts the package 5 through the gap. The pin 50 is then inserted into the flattening groove between the pressure plates 41. The operator then pulls the outer pull plate 37 outwards, causing the pull rod 35 to move outwards. The outward movement of the pull rod 35 acts on the strip hole 34, causing the inner end of the rotating top plate 33 to act on the outer wall of the pressure plate 41, and causing the pressure plate 41 to act on the pin 50, ultimately completing the flattening and straightening operation of the pin 50.
[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A pin straightening device for an IGBT device, characterized in that, It includes a pair of support legs (1), the support legs (1) are arranged vertically, and the upper end of the support legs (1) is provided with a limiting plate (10). There is a gap between the limiting plates (10). When the pin is straightened, the IGBT device passes through the gap. A pair of concave seats (2) are installed on both sides of the limiting plate (10). A pair of insertion holes (20) are opened on the concave seats (2). Insertion plates (22) are inserted into the insertion holes (20). An end plate (21) is provided on the outer end of the insertion plate (22). When the pin of the IGBT device passes through the insertion plate (22), the two sides of the insertion plate (22) act on the two sides of the pin to straighten the pin of the IGBT device. A pair of pressure plates (41) are provided between the support legs (1). Multiple flattening grooves are provided on the inner wall of the pressure plate (41). The pressure plate (41) acts on the pins of the IGBT device to flatten them.
2. The IGBT device pin straightening device according to claim 1, characterized in that, The insert (22) has an isosceles trapezoidal structure and its inclined surface is set upward.
3. The IGBT device pin straightening device according to claim 1, characterized in that, The support leg (1) is provided with at least one guide rod (3), both ends of the guide rod (3) extend outward, and L-shaped seats (40) are respectively fitted on both ends of the guide rod (3). The inner end of the L-shaped seat (40) is installed on the pressure plate (41). A spring (30) is provided on the inner side of the L-shaped seat (40). The spring (30) is fitted on the guide rod (3) and is located on the outside of the support leg (1).
4. The IGBT device pin straightening device according to claim 3, characterized in that, A horizontal plate (31) is installed at both ends of the guide rod (3). An inner extension plate (32) is provided on the horizontal plate (31). A rotating top plate (33) is rotatably provided on the inner extension plate (32). The inner end of the rotating top plate (33) acts on the outer wall of the pressure plate (41). A strip hole (34) is opened at the outer end of the rotating top plate (33). A pull rod (35) is passed through the strip hole (34). A pull arm (36) is provided at the outer end of the pull rod (35). An outer pull plate (37) is installed at the outer end of the pull arm (36). A pair of guide rods (39) are passed through the outer pull plate (37). The guide rods (39) are installed on the support leg (1).
5. The IGBT device pin straightening device according to claim 4, characterized in that, A concave rod (38) is installed on the outer pull plate (37).