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Power module and motor controller

A technology of motor controller and power module, which is applied in the direction of AC motor control, control system, electric solid device, etc., can solve the problems of reducing the reliability of power module and unbalanced chip current, so as to reduce the risk of damage and enhance reliability. , Improve the effect of current sharing characteristics

Pending Publication Date: 2021-12-21
SUZHOU INOSA UNITED POWER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different layout of multiple parallel power devices inside the module, there will be a problem of unbalanced current flowing through each chip, which will easily reduce the reliability of the power module

Method used

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  • Power module and motor controller
  • Power module and motor controller
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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a power module and a motor controller. The power module comprises: an insulating substrate having a first surface and a second surface which are oppositely disposed, wherein the first surface of the insulating substrate is provided with a first conductive layer; a plurality of power devices which are arranged on the first surface of the insulating substrate in the first direction, wherein input electrodes of a part of the power devices are connected with the first conductive layer, and output electrodes of the rest of the power devices are connected with the first conductive layer; conducting strips which are connected with the input electrodes or the output electrodes of the corresponding power devices in the first direction; a direct current end which is connected with the first conductive layer and inputs direct current to the power devices; and an alternating current end which is connected with the first conductive layer and outputs alternating current through the power devices. According to the power module, the current sharing property of each power device of the power module is improved, and the reliability of the power module is enhanced.

Description

technical field [0001] The invention relates to the technical field of power electronic devices, in particular to a power module and a motor controller. Background technique [0002] In the power module, there may be a semiconductor device package in which multiple chips are connected in parallel to form a bridge arm switch, and then arranged in series with another bridge arm switch to form a half-bridge / full-bridge function. Due to the different layouts of multiple parallel power devices inside the module, there will be a problem of unbalanced current flowing through each chip, which will easily reduce the reliability of the power module. Contents of the invention [0003] The main purpose of the present invention is to provide a power module and a motor controller, aiming at realizing the current sharing characteristics of each power device of the power module and enhancing the reliability of the power module. [0004] In order to achieve the above purpose, the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/07H01L23/498H02M7/00H02P27/06
CPCH01L25/072H01L23/49811H01L23/49844H02M7/003H02P27/06H01L2224/40139H01L2224/32225H01L2224/40225H01L2224/8484H01L2224/84801H01L2224/84205H01L2224/84214
Inventor 曹玉昭张太之何友东李剑垒时尚起莫祖秀
Owner SUZHOU INOSA UNITED POWER SYST CO LTD
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