Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An inverter DC input reverse connection protection module and device

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: 2021-04-13
SUNGROW POWER SUPPLY CO LTD
View PDF8 Cites 0 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
  • An inverter DC input reverse connection protection module and device
  • An inverter DC input reverse connection protection module and device
  • An inverter DC input reverse connection protection module and device

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 inverter DC input reverse connection protection module and device provided by the present invention are applied in the field of power electronics technology. This module is respectively provided with a reverse connection power-taking unit between the input port of each DC input branch and the controllable switch , when the DC input branch of the inverter has input port reverse connection, the reverse connection power-taking unit can at least enable the controllable switch in the same DC input branch to receive the disconnection control signal before closing, thereby ensuring that the controllable The switch cannot be closed, which not only realizes the reverse connection protection function for the corresponding DC input branch, but also avoids the problem of potential safety hazard caused by opening the circuit breaker when the rated working voltage exceeds the rated working voltage in the prior art.

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 Patents(China)
IPC IPC(8): H02H11/00
CPCH02H11/002
Inventor 王航孙鹏
Owner SUNGROW POWER SUPPLY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com