A signal terminal of a power module

Abstract

The utility model discloses a signal terminal of power module, this signal terminal includes the base that connects gradually, first curved section, second curved section, terminal head. Among them, first curved section and second curved section are curved and form curve structure respectively, and first connecting section is equipped with between first curved section and second curved section, and the axial direction of first connecting section is perpendicular to the base, and the axial direction of first connecting section is first curved direction compared to first curved section, and the axial direction of first connecting section is second curved direction compared to second curved section, and the axial rotation n of first connecting section is second curved direction along first curved direction, and based on this signal terminal bears the stress of first plane through first curved section, bears the stress of second plane through second curved section, thereby realizes the reliability of signal terminal to improve, and can be more stable in the process of assembling or using.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor power device technology, and in particular to a signal terminal of a power module. Background Technology

[0002] The signal terminals of the power module are used for electrical connections. Existing signal terminals have a bend that provides good mechanical grip and electrical contact during soldering. However, the single bend can only counteract stress in one direction, affecting the reliability of the signal terminals. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a signal terminal for a power module.

[0004] This utility model embodiment provides a signal terminal for a power module. The signal terminal includes a base, a first curved section, a second curved section, and a terminal head connected in sequence. The first curved section and the second curved section are respectively bent into curved structures. A first connecting section is provided between the first curved section and the second curved section. The axis of the first connecting section is perpendicular to the base. The first curved section is in a first bending direction relative to the axis of the first connecting section. The second curved section is in a second bending direction relative to the axis of the first connecting section. The first bending direction is rotated n degrees along the axis of the first connecting section to form the second bending direction.

[0005] Preferably, n degrees is 90 degrees.

[0006] Preferably, n degrees is 90±45 degrees.

[0007] Preferably, n degrees is 90±30 degrees.

[0008] Preferably, the base, the first connecting section, and the terminal head are coaxial.

[0009] Preferably, the base, the first connecting section, and the terminal head have the same diameter.

[0010] Preferably, the first end of the terminal head is connected to the second bent section.

[0011] Preferably, the second end of the terminal head also includes a terminal tip.

[0012] Preferably, the first curved segment and the second curved segment have the same shape.

[0013] Preferably, the first curved segment and the second curved segment have different shapes.

[0014] Preferably, a second connecting section is provided between the base and the first curved section.

[0015] Preferably, the base, the first connecting section, the terminal head, and the second connecting section are coaxial.

[0016] Preferably, the base, the first connecting section, the terminal head, and the second connecting section have the same diameter.

[0017] Preferably, the first end of the first curved section is connected to the base.

[0018] Preferably, the first end of the first curved section is connected to the base via the second connecting section.

[0019] Preferably, the first curved segment has a first transition portion at the connection with the second connecting segment.

[0020] Preferably, the first curved segment has a second transition portion at the connection with the first connecting segment.

[0021] Preferably, the second curved segment has a third transition portion at the connection with the first connecting segment.

[0022] Preferably, the second curved section has a fourth transition portion at the connection with the terminal head.

[0023] Preferably, the first curved segment includes a first curved portion and a second curved portion, and the first curved portion and the second curved portion form an S-shaped structure.

[0024] Preferably, the second curved section includes a third curved portion and a fourth curved portion, which form an S-shaped structure.

[0025] Preferably, the base, the fifth transition section, the second connecting section, the first transition section, the first curved section, the second curved section, the second transition section, the third transition section, the third curved section, the fourth curved section, the fourth transition section, the terminal head, and the terminal tip are smoothly connected.

[0026] Preferably, the signal terminal is integrally formed from pure copper or copper alloy.

[0027] Preferably, the surface of the signal terminal has one of a gold plating layer, a nickel plating layer, or a gold-nickel alloy plating layer.

[0028] Preferably, the base is welded or press-fitted to the power module.

[0029] Preferably, the length of the cross-section of the first and second curved portions perpendicular to the length direction of the signal terminal is 1.45±0.05 mm, and the width of the cross-section perpendicular to the length direction of the signal terminal is 0.6±0.05 mm.

[0030] Preferably, the length of the cross-section of the third and fourth bends perpendicular to the length direction of the signal terminal is 1.45±0.05 mm, and the width of the cross-section perpendicular to the length direction of the signal terminal is 0.6±0.05 mm.

[0031] Preferably, the diameter of the base, the first connecting section, the terminal head, and the second connecting section is 1 ± 0.05 mm.

[0032] Preferably, the diameter of the base, the first connecting section, and the terminal head is 1 ± 0.05 mm.

[0033] Preferably, the length of the cross-section of the first bent portion and the second bent portion perpendicular to the length direction of the signal terminal is greater than the diameter of the first connecting segment, and the width of the cross-section of the first bent portion and the second bent portion perpendicular to the length direction of the signal terminal is less than the diameter of the first connecting segment.

[0034] Preferably, the length of the cross-sections of the third and fourth bends perpendicular to the length direction of the signal terminal is greater than the diameter of the first connecting segment, and the width of the cross-sections of the third and fourth bends perpendicular to the length direction of the signal terminal is less than the diameter of the first connecting segment.

[0035] Preferably, the cross-sections of the third and fourth bends perpendicular to the length direction of the signal terminal are the same as the cross-sections of the first and second bends perpendicular to the length direction of the signal terminal.

[0036] Preferably, the length of the terminal head is 4±0.1 mm.

[0037] Preferably, the length of the signal terminal is 12.35 ± 0.2 mm.

[0038] This utility model embodiment provides a signal terminal for a power module. The signal terminal includes a base, a first curved section, a second curved section, a terminal head, and a terminal tip connected sequentially. The first and second curved sections are each bent into a curved structure. A first connecting section is provided between the first and second curved sections. The first curved section is bent along a first bending direction relative to the first connecting section, and the second curved section is bent along a second bending direction relative to the first connecting section. The second bending direction is defined as n degrees rotated from the axial direction of the first connecting section. Based on this, the signal terminal bears the stress of a first plane through the first curved section and the stress of a second plane through the second curved section. Preferably, n is 90 degrees, the first plane is the XY plane, and the second plane is the YZ plane, where X and Y are perpendicular, and Z is perpendicular to the planes containing X and Y. Preferably, n can also be 90±45 degrees, or 90±30 degrees. This improves the reliability of the signal terminal and makes it more stable during assembly or use. Furthermore, the transition between the first and second curved sections is smooth, and the base, fifth transition section, second connecting section, first transition section, first curved section, second curved section, second transition section, third transition section, third curved section, fourth curved section, fourth transition section, and terminal head are smoothly connected, reducing stress and creating a smooth line. The base, fifth transition section, second connecting section, first transition section, first curved section, second curved section, second transition section, third transition section, third curved section, fourth curved section, fourth transition section, and terminal head are integrally formed by forging, facilitating production. Attached Figure Description

[0039] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0040] Figure 1 This is a schematic diagram of the structure of a signal terminal provided in the first embodiment of this utility model;

[0041] Figure 2 This is a front view of a signal terminal provided in the first embodiment of this utility model;

[0042] Figure 3 This is a side view of a signal terminal provided in the first embodiment of this utility model;

[0043] Figure 4 This is a schematic diagram of the force applied to a signal terminal according to the first embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the structure of a signal terminal provided in the second embodiment of this utility model.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1-Base; 11-Fifth transition section; 2-First bending section; 21-First transition section; 22-Second transition section; 23-First bending section; 24-Second bending section; 3-Second bending section; 31-Third transition section; 32-Fourth transition section; 33-Third bending section; 34-Fourth bending section; 4-Terminal head; 5-Terminal tip; 6-Second connecting section; 7-First connecting section. Detailed Implementation

[0047] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0048] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0049] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0051] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0052] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0053] Figure 1 This is a schematic diagram of the structure of a signal terminal provided in the first embodiment of this utility model. Figure 2 This is a front view of a signal terminal provided in the first embodiment of this utility model. Figure 3 This is a side view of a signal terminal provided in the first embodiment of this utility model, combined with... Figures 1 to 3 As shown, the signal terminals of the power module include a base 1, a first bent section 2, a second bent section 3, a terminal head 4, and a terminal tip 5 connected in sequence. It is readily understood that the terminal tip 5 is a conical structure. Further, the first bent section 2 and the second bent section 3 are bent into curved structures. A first connecting section 7 is provided between the first bent section 2 and the second bent section 3. The first bent section 2 is bent in a first bending direction relative to the first connecting section 7, and the second bent section 3 is bent in a second bending direction relative to the first connecting section 7. The first bending direction is the second bending direction when rotated n degrees along the axial direction of the first connecting section 7. Based on this, the signal terminal bears the stress of the first plane through the first bent section 2 and the stress of the second plane through the second bent section 3. For example, preferably, n is 90 degrees. Figure 4 This is a schematic diagram illustrating the force applied to a signal terminal according to an embodiment of the present invention, as shown below. Figure 4 As shown, the first plane is the XY plane, and the second plane is the YZ plane. X is perpendicular to Y, and Z is perpendicular to the plane containing X and Y. Figure 4 This is merely an illustrative representation of the stress situation in the first bending direction on the first plane, but in reality, the first bending direction experiences stress not only in the first plane; similarly, the stress situation in the second bending direction on the second plane is also illustrated, but in reality, the second bending direction experiences stress not only in the second plane. Preferably, n can also be 90±45 degrees, or n can also be 90±30 degrees. Figure 5 This is a schematic diagram of another signal terminal provided in the second embodiment of the present invention, as shown below. Figure 5 As shown, n is 60 degrees. Figures 1 to 5 This achieves high reliability for the signal terminals and ensures greater stability during assembly or use. Furthermore, there is a smooth transition between the first bending segment 2 and the second bending segment 3.

[0054] like Figures 1 to 5 In the preferred embodiment shown, the base 1, the first connecting segment 7, and the terminal head 4 are coaxial. Furthermore, the base 1, the first connecting segment 7, and the terminal head 4 have the same diameter. However, this application is not limited to this preferred embodiment.

[0055] In one embodiment, the first end of the terminal head 4 is connected to the second bent section 3. Further, the second end of the terminal head 4 also includes a terminal tip 5.

[0056] In one embodiment, the first curved segment 2 and the second curved segment 3 have the same shape.

[0057] As an alternative implementation, the shapes of the first curved segment 2 and the second curved segment 3 may also be different.

[0058] Combination Figures 1 to 5 The preferred solutions shown are, but this application is not limited to, the following preferred solutions:

[0059] In one embodiment, a second connecting segment 6 is provided between the base 1 and the first bent segment 2. Specifically, the second connecting segment 6 is cylindrical. That is, the cross-section of the second connecting segment 6 perpendicular to the length direction of the signal terminal is the same as a circle. Further, the base 1 is disc-shaped, and its cross-sectional dimension is larger than that of the second connecting segment 6. Optionally, the base 1, the first connecting segment 7, the terminal head 4, and the second connecting segment 6 are coaxial. Further, the base 1, the first connecting segment 7, the terminal head 4, and the second connecting segment 6 have the same diameter. Optionally, the first end of the first bent segment 2 is connected to the base 1. Optionally, the first end of the first bent segment 2 is connected to the base 1 via the second connecting segment 6.

[0060] In one embodiment, a first connecting segment 7 is provided between the first bent segment 2 and the second bent segment 3. Specifically, the first connecting segment 7 is cylindrical. That is, the cross-section of the first connecting segment 7 in the direction perpendicular to the length of the signal terminal is the same circular. Further, the cross-sectional dimensions of the first connecting segment 7 are equal to the cross-sectional dimensions of the second connecting segment 6.

[0061] In one embodiment, the first curved segment 2 includes a first curved portion 23 and a second curved portion 24. Further, the first curved segment 2 formed by the first curved portion 23 and the second curved portion 24 has an S-shaped structure. Specifically, the cross-sectional length of the first curved portion 23 and the second curved portion 24 perpendicular to the length direction of the signal terminal is greater than the diameter of the cross-section of the first connecting segment 7, while the width of the cross-section perpendicular to the length direction of the signal terminal is smaller than the diameter of the cross-section of the first connecting segment 7.

[0062] In one embodiment, the second curved segment 3 includes a third curved portion 33 and a fourth curved portion 34. Further, the second curved segment 3 formed by the third curved portion 33 and the fourth curved portion 34 has an S-shaped structure. Specifically, the length of the cross-section of the third curved portion 33 and the fourth curved portion 34 perpendicular to the length direction of the signal terminal is greater than the diameter of the cross-section of the first connecting segment 7, while the width of the cross-section perpendicular to the length direction of the signal terminal is smaller than the diameter of the cross-section of the first connecting segment 7. It should be noted that the cross-sections of the third curved portion 33 and the fourth curved portion 34 perpendicular to the length direction of the signal terminal are the same as the cross-sections of the first curved portion 23 and the second curved portion 24 perpendicular to the length direction of the signal terminal.

[0063] In one embodiment, the first curved segment 2 has a first transition portion 21 at its connection with the second connecting segment 6. Specifically, the first transition portion 21 extends from the first curved portion 23 toward the second connecting segment 6. It is readily understood that the first curved segment 2 and the second connecting segment 6 achieve a smooth transition at their connection through the first transition portion 21. Specifically, the cross-section of the first transition portion 21, perpendicular to the length direction of the signal terminal, gradually changes from a strip shape matching the first curved portion 23 to a circle matching the second connecting segment 6.

[0064] In one embodiment, the first curved segment 2 has a second transition portion 22 at its connection with the first connecting segment 7. Specifically, the second transition portion 22 extends from the second curved portion 24 toward the first connecting segment 7. It is readily understood that the first curved segment 2 and the first connecting segment 7 achieve a smooth transition at their connection via the second transition portion 22. Specifically, the cross-section of the second transition portion 22, perpendicular to the length direction of the signal terminal, gradually changes from a strip shape matching the second curved portion 24 to a circle matching the first connecting segment 7. Correspondingly, the second curved segment 3 has a third transition portion 31 at its connection with the first connecting segment 7. Specifically, the third transition portion 31 extends from the third curved portion 33 toward the first connecting segment 7. It is readily understood that the second curved segment 3 and the first connecting segment 7 achieve a smooth transition at their connection via the third transition portion 31. Specifically, the cross-section of the third transition portion 31, perpendicular to the length direction of the signal terminal, gradually changes from a strip shape matching the third curved portion 33 to a circle matching the first connecting segment 7.

[0065] In one embodiment, the second curved segment 3 has a fourth transition portion 32 at its connection with the terminal head 4. Specifically, the fourth transition portion 32 extends from the fourth curved portion 34 toward the terminal head 4. More specifically, the terminal head 4 is cylindrical. That is, the cross-section of the terminal head 4 is the same circular shape in the direction perpendicular to the length of the signal terminal. Further, the cross-sectional dimensions of the terminal head 4 are equal to the cross-sectional dimensions of the second connecting segment 6 and the first connecting segment 7. For example, the cross-sectional diameters of the terminal head 4, the second connecting segment 6, and the first connecting segment 7 are all 1 mm. It should be noted that the terminal head 4 can be inserted into a circuit board hole and then connected and fixed by soldering, thereby forming an effective mechanical and electrical connection with the circuit board. It is readily understood that the second curved segment 3 and the terminal head 4 achieve a smooth transition at the connection through the fourth transition portion 32. Specifically, the cross-section of the fourth transition portion 32 in the direction perpendicular to the length of the signal terminal gradually changes from a strip shape matching the fourth curved portion 34 to a circle matching the terminal head 4.

[0066] In one embodiment, the base 1 has a fifth transition portion 11 at the connection with the second connecting segment 6. It is readily understood that the base 1 and the second connecting segment 6 achieve a smooth transition at the connection via the fifth transition portion 11. Specifically, the cross-section of the fifth transition portion 11, perpendicular to the length direction of the signal terminal, gradually changes from a circle matching the welding base 1 to a circle matching the second connecting segment 6.

[0067] In one embodiment, the signal terminal is integrally formed from pure copper or a copper alloy. It is readily understood that signal terminals made of pure copper or copper alloys possess excellent electrical conductivity, thermal conductivity, and good mechanical properties. Furthermore, the use of pure copper or copper alloys facilitates the processing of the signal terminals and improves their reliability and service life.

[0068] In one embodiment, the surface of the signal terminal is electroplated with one or more of gold, nickel, or a gold-nickel alloy, thereby improving the corrosion resistance, conductivity, mechanical strength, and solderability of the signal terminal.

[0069] In one embodiment, the base of the signal terminal is connected to the power module by welding or crimping.

[0070] In one embodiment, the base 1, fifth transition portion 11, second connecting segment 6, first transition portion 21, first curved portion 23, second curved portion 24, second transition portion 22, first connecting segment 7, third transition portion 31, third curved portion 33, fourth curved portion 34, fourth transition portion 32, terminal head 4, and terminal tip 5 are smoothly connected, reducing stress and creating a smooth line. Furthermore, the base 1, fifth transition portion 11, second connecting segment 6, first transition portion 21, first curved portion 23, second curved portion 24, second transition portion 22, first connecting segment 7, third transition portion 31, third curved portion 33, fourth curved portion 34, fourth transition portion 32, terminal head 4, and terminal tip 5 are integrally formed by forging, facilitating production.

[0071] In one embodiment, the length of the cross section of the first bent portion 23 and the second bent portion 24 perpendicular to the length direction of the signal terminal is 1.45±0.05 mm, and the width of the cross section perpendicular to the length direction of the signal terminal is 0.6±0.05 mm.

[0072] In one embodiment, the length of the cross-section of the third bend 33 and the fourth bend 34 perpendicular to the length direction of the signal terminal is 1.45±0.05 mm, and the width of the cross-section perpendicular to the length direction of the signal terminal is 0.6±0.05 mm.

[0073] In one embodiment, the diameter of the base 1, the first connecting segment 7, the terminal head 4, and the second connecting segment 6 is 1 ± 0.05 mm.

[0074] In one embodiment, the diameter of the base 1, the first connecting section 7, and the terminal head 4 is 1 ± 0.05 mm.

[0075] In one embodiment, the length of the terminal head 4 is 4 ± 0.1 mm.

[0076] In one embodiment, the total length of the signal terminal is 12.35 ± 0.2 mm.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A signal terminal for a power module, characterized in that, The signal terminal includes a base, a first curved section, a second curved section, and a terminal head connected in sequence. The first curved section and the second curved section are respectively bent into curved structures. A first connecting section is provided between the first curved section and the second curved section. The axis of the first connecting section is perpendicular to the base. The first curved section has a first bending direction relative to the axis of the first connecting section. The second curved section has a second bending direction relative to the axis of the first connecting section. The first bending direction is rotated n degrees along the axis of the first connecting section to form the second bending direction.

2. The signal terminal of the power module according to claim 1, characterized in that, The n degrees is 90 degrees.

3. The signal terminal of the power module according to claim 1, characterized in that, The n degrees is 90±45 degrees.

4. The signal terminal of the power module according to claim 1, characterized in that, The n degrees is 90±30 degrees.

5. The signal terminal of the power module according to claim 1, characterized in that, The base, the first connecting section, and the terminal head are coaxial.

6. The signal terminal of the power module according to claim 5, characterized in that, The base, the first connecting section, and the terminal head have the same diameter.

7. The signal terminal of the power module according to claim 1, characterized in that, The first end of the terminal head is connected to the second bent section.

8. The signal terminal of the power module according to claim 7, characterized in that, The second end of the terminal head also includes a terminal tip.

9. The signal terminal of the power module according to claim 1, characterized in that, The first curved segment and the second curved segment have the same shape.

10. The signal terminal of the power module according to claim 1, characterized in that, The first curved segment and the second curved segment have different shapes.

11. The signal terminal of the power module according to claim 1, characterized in that, A second connecting section is provided between the base and the first curved section.

12. The signal terminal of the power module according to claim 11, characterized in that, The base, the first connecting segment, the terminal head, and the second connecting segment are coaxial.

13. The signal terminal of the power module according to claim 12, characterized in that, The base, the first connecting segment, the terminal head, and the second connecting segment have the same diameter.

14. The signal terminal of the power module according to claim 11, characterized in that, The first end of the first curved section is connected to the base.

15. The signal terminal of the power module according to claim 11, characterized in that, The first end of the first curved section is connected to the base via the second connecting section.

16. The signal terminal of the power module according to claim 15, characterized in that, The first curved segment has a first transition portion at the connection with the second connecting segment.

17. The signal terminal of the power module according to claim 1, characterized in that, The first curved segment has a second transition portion at the connection with the first connecting segment.

18. The signal terminal of the power module according to claim 1, characterized in that, The second curved segment has a third transition portion at the connection with the first connecting segment.

19. The signal terminal of the power module according to claim 1, characterized in that, The second curved section has a fourth transition portion at the connection with the terminal head.

20. The signal terminal of the power module according to claim 1, characterized in that, The first curved segment includes a first curved portion and a second curved portion, and the first curved portion and the second curved portion form an S-shaped structure.

21. The signal terminal of the power module according to claim 1, characterized in that, The second curved section includes a third curved portion and a fourth curved portion, which form an S-shaped structure.

22. The signal terminal of the power module according to claim 1, characterized in that, The base, fifth transition section, second connecting section, first transition section, first curved section, second curved section, second transition section, first connecting section, third transition section, third curved section, fourth curved section, fourth transition section, terminal head and terminal tip are smoothly connected.

23. The signal terminal of the power module according to claim 1, characterized in that, The signal terminal is integrally formed from pure copper or copper alloy.

24. The signal terminal of the power module according to claim 9, characterized in that, The surface of the signal terminal has one of the following: a gold plating layer, a nickel plating layer, or a gold-nickel alloy plating layer.

25. The signal terminal of the power module according to claim 1, characterized in that, The base is welded or press-fitted to the power module.

26. The signal terminal of the power module according to claim 20, characterized in that, The length of the cross-section of the first and second bent portions perpendicular to the length direction of the signal terminal is 1.45 ± 0.05 mm, and the width of the cross-section perpendicular to the length direction of the signal terminal is 0.6 ± 0.05 mm.

27. The signal terminal of the power module according to claim 21, characterized in that, The length of the cross-section of the third and fourth curved portions perpendicular to the length direction of the signal terminal is 1.45 ± 0.05 mm, and the width of the cross-section perpendicular to the length direction of the signal terminal is 0.6 ± 0.05 mm.

28. The signal terminal of the power module according to claim 11, characterized in that, The diameter of the base, the first connecting section, the terminal head, and the second connecting section is 1 ± 0.05 mm.

29. The signal terminal of the power module according to claim 1, characterized in that, The diameter of the base, the first connecting section, and the terminal head is 1 ± 0.05 mm.

30. The signal terminal of the power module according to claim 20, characterized in that, The length of the cross-sections of the first and second bent portions perpendicular to the length direction of the signal terminal is greater than the diameter of the first connecting segment, and the width of the cross-sections of the first and second bent portions perpendicular to the length direction of the signal terminal is less than the diameter of the first connecting segment.

31. The signal terminal of the power module according to claim 21, characterized in that, The length of the cross-sections of the third and fourth bends perpendicular to the length direction of the signal terminal is greater than the diameter of the first connecting segment, and the width of the cross-sections of the third and fourth bends perpendicular to the length direction of the signal terminal is less than the diameter of the first connecting segment.

32. The signal terminal of the power module according to claim 21, characterized in that, The cross-sections of the third and fourth bends perpendicular to the length direction of the signal terminal are the same as the cross-sections of the first and second bends perpendicular to the length direction of the signal terminal.

33. The signal terminal of the power module according to claim 1, characterized in that, The length of the terminal head is 4 ± 0.1 mm.

34. The signal terminal of the power module according to claim 1, characterized in that, The length of the signal terminal is 12.35 ± 0.2 mm.

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