Unlock instant, AI-driven research and patent intelligence for your innovation.

Direct current input reverse connection protection module and device for inverter

A DC input, reverse connection protection technology, applied in emergency protection circuit devices, electrical components and other directions, can solve problems such as safety hazards, and achieve the effect of avoiding safety hazards

Active Publication Date: 2019-03-29
SUNGROW POWER SUPPLY CO LTD
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an inverter DC input reverse connection protection module and device to solve the problem of potential safety hazards caused by disconnecting the circuit breaker when the rated working voltage is exceeded in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Direct current input reverse connection protection module and device for inverter
  • Direct current input reverse connection protection module and device for inverter
  • Direct current input reverse connection protection module and device for inverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0048] The inverter DC input reverse connection protection module provided by the application embodiment of the present invention can realize reverse connection protection on the DC input side of the inverter, improve the safety factor of the DC input side circuit and the entire inverter, and can be applied to setting In the scenario where there is an inverter and reverse polarity protection is performed on the inverter.

[0049] see figure 1 , figure 1 It is a schematic diagram of an app...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a direct current input reverse connection protection module and device for an inverter, and is applied to the technical field of power electronics. The direct current input reverse connection protection module for an inverter is characterized in that a reverse connection power taking unit is arranged between an input port and a controllable switch of each direct current input branch; and when reverse connection of the input port occurs in the direct current input branch of the inverter, the reverse connection power taking unit at least enables the controllable switch ofthe same direct current input branch to receive a switch-off control signal before closing, so as to ensure that the controllable switch cannot be closed. Therefore, the direct current input reverse connection protection module and device for an inverter can realize the reverse connection protection function of the corresponding direct current input branch, and can avoid the problem that the priorart has a safety loophole caused by switch off of the breaker when the rated operating voltage is exceeded.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to an inverter DC input reverse connection protection module and device. Background technique [0002] With the development of the inverter, there are usually multiple DC input branches on the DC side of the inverter, and each DC input branch is connected in parallel after passing through a circuit breaker or other switches. For each DC input branch of the inverter, if part of the DC input branch is reversely connected to the corresponding DC power output (that is, the positive and negative poles are reversed), other branches without reverse connection will be reversed here. Therefore, in the prior art, when reverse connection is detected, the control unit in the inverter realizes the reverse connection protection function, that is, the circuit breaker on the reverse connection branch is controlled to be disconnected. [0003] However, when the reverse connection conditio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02H11/00
CPCH02H11/002
Inventor 王航孙鹏
Owner SUNGROW POWER SUPPLY CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com