Power modules and pin thereof

Patent metadata

Field	Value
Publication number	US-2016366780-A1
Application number	US-201615168262-A
Country	US
Kind code	A1
Filing date	May 31, 2016
Priority date	Jun 9, 2015
Publication date	Dec 15, 2016
Grant date	—

Abstract

A power module with vertically stacked structure and a pin thereof are disclosed. The power module comprises at least three circuit modules. The at least three circuit modules are a first circuit module, a second circuit module and a third circuit module. The pin is led from the first circuit module. The pin comprises: a main body, a first connection surface and a second connection surface. An upper part of the main body is electrically connected with the first circuit module. The first connection surface is provided at a middle part of the main body and electrically connected with the second circuit module. The second connection surface is provided at a terminal of the main body and electrically connected with the third circuit module.

First claim

What is claimed is:

1 . A pin for vertically stacked connections of circuit modules, the pin being led out from a first circuit module, wherein the pin comprises:
a main body, an upper part of which is electrically connected with the first circuit module; a first connection surface provided at a middle part of the main body and electrically connected with a second circuit module; a second connection surface provided at a terminal of the main body and electrically connected with a third circuit module; wherein at least one of the first circuit module, the second circuit module and the third circuit module is a power circuit module, and the power circuit module comprises at least one power switch for power supply conversion.

2 . The pin according to claim 1 , wherein the first connection surface is a separate body separated from the main body, and an angle between the first connection surface and the main body is larger than 0 degree and less than or equal to 180 degrees.

3 . The pin according to claim 2 , wherein the angle is 90 degrees.

4 . The pin according to claim 2 wherein the first connection surface, the second connection surface and the main body are shaped in one piece, a U shaped groove is provided at a center of the main body, and the first connection surface is engaged with the U shaped groove to form an I shape, and the first connection surface is bent at a position where it is joined with the main body so as to form the angle between the first connection surface and the main body.

5 . The pin according to claim 2 , wherein the first connection surface has an I shape, and it is located at a side of the main body and has a parallel pitch from a part of the main body to which the first connection surface is not joined, and the first connection surface is bent at a position where it is joined with the main body so as to form the angle between the first connection surface and the main body.

6 . The pin according to claim 1 , wherein the first connection surface, the second connection surface and the main body are shaped in one piece, and the first connection surface is a stepped surface which is perpendicular to the remaining parts of the main body.

7 . The pin according to claim 1 , wherein the first connection surface, the second connection surface and the main body are shaped in one piece, and the second connection surface has a triangular shape or a trapezoidal shape.

8 . The pin according to claim 1 , wherein two sides of the middle part of the main body are concaved inwardly to each other and extended to form a lower part of the main body which is narrower than the upper part of the main body, and the first connection surface is located at concave faces at two sides of the main body.

9 . A power module, comprising at least three circuit modules which are vertically stacked, and a pin,
the three power modules including a first circuit module, a second circuit module and a third circuit module, wherein at least one of the first circuit module, the second circuit module and the third circuit module is a power circuit module, and the power circuit module comprises at least one power switch for power supply conversion; the pin led out from the first circuit module and further comprising: a main body, an upper part of which is electrically connected with the first circuit module; a first connection surface provided at a middle part of the main body and electrically connected with the second circuit module; a second connection surface provided at a terminal of the main body and electrically connected with the third circuit module.

10 . The power module according to claim 9 , wherein the first connection surface is a separate body separated from the main body, and an angle between the first connection surface and the main body is larger than 0 degree and less than or equal to 180 degrees.

11 . The power module according to claim 9 , wherein the first connection surface, the second connection surface and the main body are shaped in one piece, and the first connection surface is a stepped surface which is perpendicular to the remaining parts of the main body.

12 . The power module according to claim 9 , wherein two sides of the middle part of the main body are concaved inwardly to each other and extended to form a lower part of the main body which is narrower than the upper part of the main body, and the first connection surface is located at concave faces at two sides of the main body.

13 . The power module according to claim 9 , wherein the second circuit module comprises a substrate and a power converter circuit thereon, and the substrate is provided with a through hole corresponding to the main body and a bonding pad for connecting with the first connection surface.

14 . The power module according to claim 13 , wherein the through hole is adjacent to the bonding pad.

Assignees

• Delta Electronics Inc

Inventors

• Liang Le
• Hong Shouyu
• Zhao Zhenqing

Classifications

• H01R12/585 Primary

  Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board · CPC title

• H02M3/04

  by static converters · CPC title

• H01R12/52

  connecting to other rigid printed circuits or like structures · CPC title

• H02M7/003

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H05K7/209

  Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20909 takes precedence) · CPC title