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Rail traffic cable connecting assembly with built-in piezoresistors

A technology of rail transit cables and varistors, which is applied to parts, connections, electrical components, etc. Beautiful, guaranteed strength, not easy to fall off

Pending Publication Date: 2018-06-15
SUZHOU HUAZHAN SPACE APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since varistors are generally large in size and irregular in shape, they are easily affected by ambient temperature and stress, and the appearance of the produced cables is not beautiful. However, the rail transit industry has strict requirements on the appearance and volume of cable components, so the design bottleneck problem protrude

Method used

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  • Rail traffic cable connecting assembly with built-in piezoresistors
  • Rail traffic cable connecting assembly with built-in piezoresistors
  • Rail traffic cable connecting assembly with built-in piezoresistors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] to combine Figure 1 to Figure 6 As shown, the rail transit cable connection assembly with a built-in varistor in the present invention includes a connector 1, a cable 9 and a varistor 4 (5), and the varistor is connected to the line where the cable 7 is electrically connected to the connecting terminal of the connector 1 superior;

[0030] It also includes a tube and shell assembly, which includes a tail cover 2, a tail shell 3 and a heat shrinkable tube 8;

[0031] The tail cover 2 is a hollow cylinder, and the inside of the tail shell 3 is provided with a wire hole 31 coaxial with the inner cavity of the tail cover 2; one end of the tail cover 2 is detachably connected to the connector 1, and the other end is fixedly connected to the tail shell 3; The connecting terminal of the connector 1 is electrically connected to the cable wire 7 passing through the wire hole of the tail shell through the wire in the inner cavity of the tail cover; two piezoresistors 4 (5) are ...

Embodiment 2

[0035] On the basis of Example 1, in this embodiment, the number of heat-shrinkable tubes is 2, and the two ends of one heat-shrinkable tube are respectively wrapped on the outer circumference of the tail cover and the tail shell, and the two ends of the other heat-shrinkable tube are respectively wrapped on the tail housing and cable perimeter.

Embodiment 3

[0037] On the basis of embodiment 1, refer to Figure 1 to Figure 6 , In the present embodiment, the outer tail 3 is in the shape of a truncated cone, and one end with a larger cross-sectional diameter is fixedly connected to the end of the tail cover 2.

[0038] A ring groove 33 is provided in the middle of the tail shell 3; the heat shrinkable tube 8 includes two heat shrinkable tubes with different diameters, and one end of the heat shrinkable tube with a larger diameter is shrunk into the ring groove 33, and the other end wraps the tail cover 2 Facing one end of the connector, one end of the heat-shrinkable tube with a smaller diameter is shrunk and embedded in the ring groove 33 , and the other end wraps the cable 9 . Since the diameter of the connector end is larger and the diameter of the cable end is smaller, the present invention adopts segmental heat shrinkage to ensure the strength of the attachment at the end of the connector and is not easy to fall off, so that th...

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Abstract

The invention discloses a rail traffic cable connecting assembly with built-in piezoresistors. The rail traffic cable connecting assembly comprises a connector, a cable and piezoresistors; the piezoresistors are connected with an electric connection circuit between the cable and a connecting terminal of the connector; the rail traffic cable connecting assembly also comprises a tube shell assembly;the tube shell assembly comprises a tail cover, a tail shell and thermal shrinkage pipes; the tail cover is a hollow columnar body; a wire-crossing hole, which is coaxial with an inner cavity of thetail cover, is formed in the tail shell; one end of the tail cover is detachably connected with the connector while the other end is fixedly connected with the tail shell; the connecting terminal of the connector is electrically connected with the cable which passes through the wire-crossing hole of the tail shell in the inner cavity of the tail cover through a wire; the two piezoresistors are fixed in the inner cavity of the tail cover; and the peripheries of the tail cover and the tail shell are sleeved with the corresponding thermal shrinkage pipe. The rail traffic cable connecting assemblyhas the characteristics of simple structure, obvious volume advantage, excellent performance, firmness and reliability, strong vibration resistance and impact resistance, attractive appearance and the like.

Description

technical field [0001] The invention relates to the technical field of rail transit electrical connectors, in particular to a rail transit cable connection assembly with a built-in piezoresistor. Background technique [0002] At present, communication cables for urban rail transit main lines are mainly used in communication systems, signal systems and power systems in subways, light rails, maglevs and tunnels. The products have higher requirements on shielding performance, communication capacity, structural design and material selection. In order to ensure the stable electrical performance of the product and avoid the damage to the equipment line caused by the impact of abnormal electrical signals, in the field of rail transit communication, the application requirements of varistors and other resistor devices for voltage clamping in cable assemblies have gradually increased in recent years. . [0003] The varistor is a voltage-limiting protection device. Using the nonlinear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/502H01R13/504H01R13/512H01R13/66H01R24/00
CPCH01R13/502H01R13/504H01R13/512H01R13/6616H01R24/00H01R2201/26
Inventor 刘广明肖云吉吴义彬
Owner SUZHOU HUAZHAN SPACE APPLIANCE
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