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A power module terminal

A power module terminal and end face technology, which is applied in the direction of welding/welding connection, etc., can solve the problems of low terminal strength and low vibration resistance, and achieve high structural rigidity, good vibration resistance, and improved vibration resistance.

Active Publication Date: 2021-06-18
湖南国芯半导体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power module terminals currently used have problems such as weak anti-vibration ability and low terminal strength.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as Figure 1 to Figure 3 As shown, the power module terminal of this embodiment includes a head 1, a middle part 2 and a welding structure 3 connected in sequence; wherein the welding structure 3 includes a supporting part 301, a buffer part 303 and a welding part 302, and one end of the supporting part 301 is connected to The middle part 2 is connected, the other end is connected to one end of the welding part 302, the other end of the welding part 302 is connected to one end of the buffer part 303, and a notch structure 304 is arranged between the other end of the buffer part 303 and the middle part 2, that is, in An opening is formed between the buffer part 303 and the middle part 2; the supporting part 301, the buffer part 303 and the welding part 302 of the welding structure 3 are triangular in shape as a whole. When the terminal head 1 is under pressure, the head 1 and the middle part 2 will be compressed toward the side of the welding structure 3. Since an o...

Embodiment 2

[0035] Such as Figure 4~6 As shown, the difference between this embodiment and Embodiment 1 is only the difference of the seam structure 304. In this embodiment, the seam structure 304 includes a seam surface 3042, and the seam surface 3042 is located at the end of the middle part 2. A limiting step 3043 is formed between the mouth surface 3042 and the middle part 2, and the mouth surface 3042 matches the end surface of the other end of the buffer part 303. Similarly, when the terminal head 1 is under pressure, the end of the buffer part 303 is It fits with the notch surface 3042 to maximize the contact area and ensure the reliability of compression resistance, while the limit step 3043 ensures the limit deformation distance. Of course, the notch surface 3042 can also be located at the end of the buffer portion 303 , a limiting step 3043 is formed between the notch surface 3042 and the buffer portion 303 , and the notch surface 3042 matches the end surface of the middle part ...

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Abstract

The invention discloses a power module terminal, which comprises a head, a middle part and a welding structure connected in sequence; the welding structure includes a support part, a buffer part and a welding part, one end of the support part is connected with the middle part, The other end is connected to one end of the welding part, the other end of the welding part is connected to one end of the buffer part, and a notch structure is provided between the other end of the buffer part and the middle part; the welding The support part, the buffer part and the welding part of the structure are triangular in shape as a whole. The power module terminal of the present invention has the advantages of simple structure, good anti-vibration performance, high welding strength, good flow capacity and the like.

Description

technical field [0001] The invention mainly relates to the field of power module manufacturing, in particular to a power module terminal. Background technique [0002] A variety of terminals are used in the power module. The terminals can be integrated with the housing and connected to the chip through bonding wires or ultrasonic welding. connect. The individual terminals can be more flexibly arranged around the chip, so that the inductance of the module is reduced, so it has been widely used. However, the power module terminals currently used have problems such as weak anti-vibration capability and low terminal strength. Contents of the invention [0003] The technical problem to be solved by the present invention lies in: aiming at the technical problems existing in the prior art, the present invention provides a power module terminal with a simple structure and good vibration resistance. [0004] In order to solve the problems of the technologies described above, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/02
CPCH01R4/02
Inventor 柯攀齐放戴小平曾亮姚亮刘洋
Owner 湖南国芯半导体科技有限公司
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