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Power module and motor controller

A technology of power modules and power devices, which is applied in the direction of single motor speed/torque control, electric solid-state devices, output power conversion devices, etc., can solve the problems of low reliability of power devices, reduce the probability of overheating failure, solve The effect of lower reliability and enhanced reliability

Pending Publication Date: 2022-07-19
SUZHOU INOSA UNITED POWER SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a power module, which aims to solve the problem of low reliability of power devices in the power module

Method used

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  • Power module and motor controller
  • Power module and motor controller
  • Power module and motor controller

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Embodiment Construction

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] In addition, descriptions such as "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the vari...

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Abstract

The invention discloses a power module and a motor controller, and the power module comprises a plurality of first DC input ends with the same polarity; the polarity of the second direct current input end is opposite to that of the first direct current input end; a plurality of power devices; the first surface of the insulating substrate is provided with a conductive layer, and the conductive layer is connected with the input electrode or the output electrode of the power device; the conductive patches are connected with the input electrodes or the output electrodes of the corresponding power devices in the first direction; the alternating current output end is connected with the conductive layer; wherein the first direct current input ends with the same polarity are connected relative to the input side of the power device. According to the technical scheme, the reliability of the power device in the power module can be improved.

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 a power module, there are package structures that use multiple DC+ terminals or multiple DC- terminals. However, in the motor controller, since multiple DC+ terminals or multiple DC- terminals need to be connected to capacitive devices, the internal parallel power devices connected to multiple DC+ terminals or multiple DC- terminals inside the package structure have uneven current flow. phenomenon, resulting in lower reliability of power devices. SUMMARY OF THE INVENTION [0003] The main purpose of the present invention is to provide a power module, which aims to solve the problem of low reliability of power devices in the power module. [0004] In order to achieve the above purpose, the power module proposed by the present invention includes: [0005] a plurality of first DC input term...

Claims

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Application Information

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IPC IPC(8): H02P6/08H02M7/537H02M1/088H02M1/32H01L25/07H01L23/48
CPCH02P6/085H02M7/537H02M1/088H02M1/32H01L25/072H01L23/48H01L2224/48227H01L2224/32225H01L2224/40225H01L2224/49111H01L2224/40137H01L2924/19107
Inventor 曹玉昭吴小鹏张太之李剑垒何友东
Owner SUZHOU INOSA UNITED POWER SYST CO LTD