IGCT welding die
By designing a multi-positioning structure for the IGCT welding mold, the problem of IGCT misalignment during processing was solved, ensuring the concentricity of the IGCT and improving processing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN SAIYING ELECTRON CO LTD
- Filing Date
- 2025-05-03
- Publication Date
- 2026-04-21
AI Technical Summary
Existing welding molds are prone to causing IGCT misalignment during IGCT machining, affecting concentricity and machining quality.
An IGCT welding mold was designed, comprising a lower mold plate and an upper mold plate. The top of the lower mold plate is provided with a first protrusion and a positioning groove, and the bottom of the upper mold plate is provided with a second and a third protrusion. The concentricity of the IGCT is ensured through the design of multiple positioning grooves and annular grooves.
The multi-positioning structure prevents IGCT component misalignment and improves machining quality.
Smart Images

Figure CN224143832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to an IGCT welding mold. Background Technology
[0002] IGCT stands for Integrated Gate Commutated Thyristor, also known as GCT, and is a new type of power electronic device that emerged in the late 1990s. IGCT combines the characteristics of GTO (Gate Turn-Off Thyristor) and MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), offering high capacity and fast switching speed. Currently, during IGCT fabrication, welding molds are typically used to fix the IGCT in place. These welding molds are tools used to fix and shape the welding material during the welding process.
[0003] However, existing welding molds may cause IGCTs to shift during operation, making it difficult to ensure the concentricity of the IGCTs and affecting processing quality. Therefore, an IGCT welding mold is invented. Utility Model Content
[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0005] An IGCT welding mold includes a lower template and an upper template. The top of the lower template is integrally provided with a first protrusion, and the top of the first protrusion is provided with a positioning groove. The bottom of the upper template is integrally provided with a second protrusion, and the bottom of the second protrusion is integrally provided with a third protrusion, which can be inserted into the positioning groove.
[0006] In a preferred embodiment of the IGCT welding mold described in this utility model, a first annular groove is provided on the outer side of the top end of the lower template, and a second annular groove is provided on the outer side of the bottom end of the upper template.
[0007] In a preferred embodiment of the IGCT welding mold described in this utility model, the first annular groove is aligned with the second annular groove, and the inner and outer diameters of the first annular groove are the same as those of the second annular groove.
[0008] In a preferred embodiment of the IGCT welding mold described in this utility model, the diameter of the first protrusion is the same as the diameter of the second protrusion, and the diameter of the positioning groove is the same as the diameter of the third protrusion.
[0009] Compared with existing technologies:
[0010] By setting a first protrusion, a positioning groove, and a first annular groove on the lower template, and by setting a second protrusion, a third protrusion, and a second annular groove on the upper template, multiple positioning of the IGCT can be achieved during IGCT welding, thereby ensuring the concentricity of the IGCT, avoiding the displacement of components on the IGCT, and improving the processing quality. Attached Figure Description
[0011] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the lower template structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the upper template structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the lower template and IGCT state of this utility model.
[0015] In the figure: lower template 10, first protrusion 11, positioning groove 12, first annular groove 13, upper template 20, second protrusion 21, third protrusion 22, second annular groove 23. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0017] This utility model provides an IGCT welding mold. Please refer to [link / reference]. Figures 1-4 The upper template includes a lower template 10 and an upper template 20. The top of the lower template 10 is integrally provided with a first protrusion 11, and the top of the first protrusion 11 is provided with a positioning groove 12. The bottom of the upper template 20 is integrally provided with a second protrusion 21, and the bottom of the second protrusion 21 is integrally provided with a third protrusion 22, which can be inserted into the positioning groove 12. The outer side of the top of the lower template 10 is provided with a first annular groove 13, and the outer side of the bottom of the upper template 20 is provided with a second annular groove 23. The first annular groove 13 and the second annular groove 23 are aligned, and the inner and outer diameters of the first annular groove 13 and the second annular groove 23 are the same. The diameter of the first protrusion 11 is the same as the diameter of the second protrusion 21, and the diameter of the positioning groove 12 is the same as the diameter of the third protrusion 22.
[0018] In practical use, the specific operating steps for those skilled in the art are as follows:
[0019] First, the IGCT is placed on the first protrusion 11, and the bottom of the IGCT is inserted into the first annular groove 13. This allows for the first positioning of the IGCT. Next, the flange is placed on top of the IGCT. Then, the upper template 20 is flipped onto the lower template 10. At this time, the third protrusion 22 will pass through the flange and the IGCT and be inserted into the positioning groove 12, and the top of the flange will be inserted into the second annular groove 23. This allows for the second positioning of the IGCT. Finally, welding and other operations can be performed on the IGCT.
[0020] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An IGCT welding mold, comprising a lower mold plate (10) and an upper mold plate (20), characterized in that, The top of the lower template (10) is integrally provided with a first protrusion (11), and the top of the first protrusion (11) is provided with a positioning groove (12). The bottom of the upper template (20) is integrally provided with a second protrusion (21), and the bottom of the second protrusion (21) is integrally provided with a third protrusion (22), and the third protrusion (22) can be inserted into the positioning groove (12).
2. An IGCT welding mold according to claim 1, wherein The lower template (10) has a first annular groove (13) on the outer side of its top end, and the upper template (20) has a second annular groove (23) on the outer side of its bottom end.
3. An IGCT welding mold according to claim 2, wherein The first annular groove (13) is aligned with the second annular groove (23), and the inner and outer diameters of the first annular groove (13) are the same as those of the second annular groove (23).
4. An IGCT welding mold according to claim 1, wherein The diameter of the first protrusion (11) is the same as the diameter of the second protrusion (21), and the diameter of the positioning groove (12) is the same as the diameter of the third protrusion (22).