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Temperature sensing cable fireproof detection device for converter of high-speed motor train unit

A technology for high-speed EMUs and temperature-sensing cables, which can be used in measuring devices, electrical fire alarms, instruments, etc., to solve the problems of false alarms and low reliability of use.

Pending Publication Date: 2021-04-30
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem that the existing temperature-sensing cable fire prevention detection device often has inexplicable fire false alarms and thus has low reliability, and provides a temperature-sensing cable fire prevention detection device for high-speed EMU converters

Method used

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  • Temperature sensing cable fireproof detection device for converter of high-speed motor train unit
  • Temperature sensing cable fireproof detection device for converter of high-speed motor train unit
  • Temperature sensing cable fireproof detection device for converter of high-speed motor train unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 As shown in the figure, the temperature-sensing cable fire detection device for high-speed EMU converters includes a temperature-sensing cable coiled in the converter cabinet with two core wires inside, and a terminal board; one core of the temperature-sensing cable The two ends of the wire 2254 are marked as A1 and B1, and the two ends of the other core wire 2255 are marked as A2 and B2, and A1 and A2 are located at the same end of the temperature-sensing cable; there are six terminal pairs on the terminal board, and the six terminal pairs are respectively Called C, D, E, F, G, H, each terminal pair has two main and auxiliary terminals, and the main and auxiliary terminals of the C terminal pair are called C + 、C - , the primary and secondary terminals of the D terminal pair are called D + 、D - , the primary and secondary terminals of the E terminal pair are called E + ,E - , the primary and secondary terminals of the F terminal pair are called F...

Embodiment 2

[0017] Such as figure 2 As shown in the figure, the temperature-sensing cable fire detection device for high-speed EMU converters includes a temperature-sensing cable coiled in the converter cabinet with two core wires inside, and a terminal board; one core of the temperature-sensing cable The two ends of the wire 2254 are marked as A1 and B1, and the two ends of the other core wire 2255 are marked as A2 and B2, and A1 and A2 are located at the same end of the temperature-sensing cable; there are six terminal pairs on the terminal board, and the six terminal pairs are respectively Called C, D, E, F, G, H, each terminal pair has two main and auxiliary terminals, and the main and auxiliary terminals of the C terminal pair are called C + 、C - , the primary and secondary terminals of the D terminal pair are called D + 、D - , the primary and secondary terminals of the E terminal pair are called E + ,E - , the primary and secondary terminals of the F terminal pair are called F...

Embodiment 3

[0020] Such as image 3 As shown in the figure, the temperature-sensing cable fire detection device for high-speed EMU converters includes a temperature-sensing cable coiled in the converter cabinet with two core wires inside, and a terminal board; one core of the temperature-sensing cable The two ends of the wire 2254 are marked as A1 and B1, and the two ends of the other core wire 2255 are marked as A2 and B2, and A1 and A2 are located at the same end of the temperature-sensing cable; there are six terminal pairs on the terminal board, and the six terminal pairs are respectively Called C, D, E, F, G, H, each terminal pair has two main and auxiliary terminals, and the main and auxiliary terminals of the C terminal pair are called C + 、C - , the primary and secondary terminals of the D terminal pair are called D + 、D - , the primary and secondary terminals of the E terminal pair are called E + ,E - , the primary and secondary terminals of the F terminal pair are called F ...

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Abstract

The invention relates to a temperature sensing cable fireproof detection device, in particular to a temperature sensing cable fireproof detection device for a converter of a high-speed motor train unit. The problem that an existing temperature-sensing cable fireproof detection device often has a phenomenon of false fire alarm, so that the use reliability is low is solved. The device comprises a temperature sensing cable and a wiring board, two core wires are arranged in the temperature sensing cable, six terminal pairs are arranged on the wiring board, each terminal pair is provided with a main terminal and an auxiliary terminal, the main terminals of two terminal pairs are connected with two ends of a first resistor R1, and the main terminals of the other two terminal pairs are connected with two ends of a second resistor R2. The main terminals of the remaining two terminal pairs are used as the input ends of the fireproof detection device; and through the connection between the auxiliary terminals and the connection between the two ends of the temperature sensing cable and the auxiliary terminals on the wiring board, a series branch formed by connecting the two core wires of the temperature sensing cable, the first resistor R1 and the second resistor R2 in series is obtained, and the directions of currents flowing through the two core wires in the temperature sensing cable are opposite in the working process.

Description

technical field [0001] The invention relates to a fire detection device for a temperature-sensing cable, in particular to a fire detection device for a temperature-sensing cable used in a converter of a high-speed EMU. Background technique [0002] With the vigorous development of China's high-speed rail industry, the fire safety of high-speed EMU converters is crucial to vehicle operation. In order to achieve fire safety of converters, distributed temperature sensors are usually used to detect the temperature in the converter cabinet in real time to achieve fire protection. The purpose of monitoring; but this form of temperature sensor needs to be arranged in multiple points, and the design cost and failure points are many. There is also the form of distributing smoke-proof and fire-proof pipes in the cabinet for fire prevention; the smoke-proof and fire-proof pipes only break when high-temperature fireworks occur, thereby triggering a firework alarm. The disadvantage is th...

Claims

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Application Information

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IPC IPC(8): G01R27/02G08B17/06
CPCG01R27/02G08B17/06
Inventor 薛军王绛波管俊青王雷王敬思
Owner CRRC YONGJI ELECTRIC CO LTD
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