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Secure connector

A connector and safety technology, applied in the direction of connection, connecting device parts, electrical components, etc., can solve the problem that the connector cannot be used, achieve the effect of safe and reliable circuit connection and ensure emergency communication

Inactive Publication Date: 2010-08-04
CHANGZHOU LIANLI AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a safety connector that can solve the problem that the existing connectors described in the background technology cannot be applied to coal mines and similar dangerous places with explosive mixtures

Method used

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Examples

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Embodiment Construction

[0015] Refer to attached figure 1 A safety connector shown includes an input interface 1 and an output interface 3, and a security circuit 2 is connected between the input interface 1 and the output interface 3, and the security circuit 2 converts the input from the input interface 1 The carrier voltage isolation in the non-intrinsically safe remote carrier power supply signal makes the output signal of the safety connector an intrinsically safe communication signal; the safety circuit 2 includes a high-frequency pulse transformer 4 connected to the input interface 1 and a protector , the input end of the high-frequency pulse transformer 4 is provided with an intermediate port 5, the intermediate port 5 is connected to the protector, and the output end of the high-frequency pulse transformer 4 is connected to the output interface 3; the protector is a protective capacitor 6 , whose capacitance value is 2.0~2.5uF; the output end of the described security circuit 2 and the descr...

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PUM

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Abstract

The invention discloses a secure connector which comprises an input interface and an output interface, wherein a secure circuit is connected between the input interface and the output interface and isolates carrier voltages in non intrinsically secure remote carrier power supply signals input from the input interface to enable output signals of the secure connector to become intrinsically secure communication signals. The invention can not only realize the function of the connector, but also carry out intrinsically secure processing on non intrinsically secure power signals to enable the non intrinsically secure signals to be used for coal mines and similar dangerous places with explosive mixtures.

Description

technical field [0001] The invention relates to a connector, in particular to a safety connector for power supply and signal transmission of wireless communication base stations used in coal mines and similar dangerous places with explosive mixtures. Background technique [0002] Intrinsically safe electrical equipment is required to be used in coal mines and similar hazardous places where explosive mixtures exist. Neither can ignite the circuit of the specified explosive mixture. That is to say, this type of electrical appliance does not rely on the explosion-proof casing and filling, but the energy of the electric spark or thermal effect generated by its circuit during normal use or failure is less than 0.28mJ, that is, the gas concentration is 8.5% (the most explosive concentration) ) minimum ignition energy. At present, wireless communication base stations in coal mines mostly use remote carrier power supply, and the carrier voltage is as high as DC80-120V, which canno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/66
Inventor 傅毅傅郁松高增源廖磊刘双庆李建刚韦柳铁倪丽萍郑茂全
Owner CHANGZHOU LIANLI AUTOMATION TECH