Coal mine underground switch state detector formed by using resistance-capacitance absorber

A technology of resistance-capacitance absorption and switching state, which is applied in the field of detectors, can solve the problems of gas content exceeding the limit and unreliability, and achieve the effect of saving space, avoiding potential safety hazards and reducing production costs.

Pending Publication Date: 2021-05-28
江西荣欣防爆电器有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the safety monitoring system, there is an important indicator, that is, in the coal mine, once the gas content exceeds the limit, the safety monitoring system should immediately cut off all non-intrinsically safe power s...

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
  • Coal mine underground switch state detector formed by using resistance-capacitance absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] 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 some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see figure 1 , the present invention provides a technical solution: a coal mine underground switch state detector composed of a resistance-capacitance absorber, including a device housing 1, and the inside of the device housing 1 is provided with a resistance-capacitance absorber 2, a photoelectric isolation 3 and switch protector 4, the RC absorber 2 is connected in parallel with the photoelectric isolator 3, the photoelectric isolator 3 and the switch...

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 coal mine underground switch state detector formed by using a resistance-capacitance absorber, and relates to the field of detectors. The coal mine underground switch state detector comprises a device shell, and the resistance-capacitance absorber, an optoelectronic isolator and a switch protector are arranged in the device shell; the resistance-capacitance absorber is connected with the optoelectronic isolator in parallel, the optoelectronic isolator and the switch protector form a complete circuit, the switch protector is connected with an alarm device in series, and the alarm device is located outside the field. According to the detector, the resistance-capacitance absorber arranged at the load side of the switch is utilized to directly detect whether the three-phase line of the load side of the switch has voltage or not, namely whether the load side of the switch has electricity or not to prove whether the three-phase line of the load side of the switch is in an operation state or an off state, and the signal has authenticity and reliability.

Description

technical field [0001] The invention relates to the field of detectors, in particular to an underground coal mine switch state detector formed by a resistance-capacitance absorber. Background technique [0002] At present, most of the working status of switches in underground coal mines use their own auxiliary contacts to indirectly obtain their own working status, that is, whether they are in the starting state or in the stopping state. This is extremely unreliable, that is, they use themselves to prove themselves. [0003] In the safety monitoring system, there is an important indicator, that is, in the coal mine, once the gas content exceeds the limit, the safety monitoring system should immediately cut off all non-intrinsically safe power supplies in the tunnel (or area), whether to cut off depends on the Whether there is still electricity on the load side of the control switch, it is obviously unreliable to use its auxiliary contacts to judge whether there is electricit...

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
IPC IPC(8): G01R31/327G01R1/04
CPCG01R1/0408G01R31/327
Inventor 苏绵朋
Owner 江西荣欣防爆电器有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap