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

A safety early warning intelligent circuit breaker

An intelligent circuit breaker and safety warning technology, applied in circuit devices, emergency protection circuit devices, components of emergency protection devices, etc., can solve the problems of lack of arc fault detection, early hidden dangers cannot be effectively monitored and early warning, etc., to reduce effective Data volume, improving the accuracy of weak hidden dangers, and the effect of large data volume

Active Publication Date: 2020-04-17
合肥能安科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a safety early warning intelligent circuit breaker to solve the problem that the circuit breaker in the prior art cannot effectively monitor and early warning of electrical safety hazards including electrical fire hazards, and does not have effective fault arc detection.

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
  • A safety early warning intelligent circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Embodiment 1: This embodiment is based on the above specific implementation plan, which involves the MCU intelligent control module and its metering sub-module as follows:

[0071] For the three-phase electrical circuit, the metering module in this embodiment adopts the dual RN8302 electric energy metering chip solution. The RN8302 chip is a three-phase electric energy metering chip with harmonic monitoring, but its internal N-phase current processing part has no harmonic calculation function. Only the effective value can be obtained, but the cost of the chip is low, and the current single-phase electric energy metering chip generally does not have the function of harmonic calculation, so the solution of the present invention uses a single RN8302 to collect the residual current. Like this, in the present embodiment, the UA, UB, UC, IA, IB, IC analog input ports of a main RN8302 chip are respectively connected with the sampling processing circuit of the three-phase voltag...

Embodiment 2

[0082] Embodiment 2: For the three-phase electrical circuit, the difference between this embodiment and Embodiment 1 is: the loop current in the electrical signal acquisition module and the residual current sampling processing circuit are connected to the analog quantity of the MCU microcontroller of the MCU intelligent control module The input pin is used to collect loop current and residual current signals through the MCU microcontroller. In the calculation subroutine module of the MCU intelligent control module, the loop current harmonic, the residual current fundamental wave, the residual current fundamental wave and the residual current harmonic are obtained through Fourier calculation.

Embodiment 3

[0083] Embodiment 3: The air switch is a type of circuit breaker. For the single-phase electrical circuit, the single-phase air switch body included in this embodiment, the metering module in this embodiment uses the RN8302 electric energy metering chip as the core, and the RN8302 is a The three-phase electric energy metering chip for harmonic monitoring, in this embodiment, uses it in a single-phase electric meter mainly for directly obtaining corresponding harmonic signals and parameter values ​​through the metering module. The current acquisition and processing circuit and the residual current acquisition and processing circuit of the electrical signal acquisition module are respectively connected to the IA and IB corresponding input ports of the RN8302 chip, and the voltage acquisition and processing circuit of the electrical signal acquisition module for acquiring single-phase voltage signals is simultaneously connected to the UA of the RN8302 chip , UB two corresponding i...

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 discloses a safety pre-warning type intelligent circuit breaker, comprising a circuit breaker body, and also comprising an electrical signal collection module, a temperature collection module, an MCU intelligent control module comprising a metering module, and a network communication module, wherein the electrical signal collection module collects a voltage vector value, a current vector value and a residual current vector value, and sends the values to the MCU intelligent control module via the metering module; programs in the MCU intelligent control module are provided with a computing subprogram module, a mutation processing module and a pre-warning logic module; values of a phase current harmonic wave, a residual current base wave and a residual current harmonic wave computed by the computing subprogram module are sent to the pre-warning logic module; the mutation processing module acquires mutation time slot time integral parameters of the phase current harmonic wave, the residual current base wave and the residual current total harmonic wave, and sends the same into a judgment subprogram module; and the pre-warning logic module detects whether the temperature isoverhigh, and finally the pre-warning logic module performs hidden danger judgment and then gives an alarm or performs outage control.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a safety warning type intelligent circuit breaker. Background technique [0002] In the recent stage, my country's intelligent circuit breakers have developed rapidly, but all manufacturers are converging on the "Internet +" model: circuit breakers + communication transmission modules, and their data are generally still real-time transient data, such as voltage, current, power, temperature, leakage, etc. Current, etc. These parameters are indispensable, and they are suitable for monitoring and alarming during and after safety failures, but they are not suitable for early monitoring and early warning of electrical safety hazards beforehand. [0003] On the other hand, arc fault is one of the main causes of high incidence of electrical fires. The existing technology uses the concave characteristics of voltage waveform to detect arc fault. Or dozens of different electrical appliances...

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): H02H7/26H02J13/00H02H1/00
CPCH02J13/0013H02H1/00H02H7/262Y02E60/00Y04S10/20
Inventor 单立辉吴杰
Owner 合肥能安科技有限公司
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