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Cable joint rear blanking cover, temperature measurement sensing apparatus and cable joint

A technology of cable joints and sensing devices, applied in measuring devices, electrical devices, cable terminals, etc., can solve the problems of high temperature resistance, short life, poor insulation performance, etc., achieve insulation effect, maintenance-free, and ensure voltage resistance performance , Strengthen the effect of insulation performance

Active Publication Date: 2017-01-18
廊坊芳远新合电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the safety accidents in the power distribution industry of my country's power system are caused by the heating of the connection points in the cabinet. Whether it is an active wired non-contact or a passive wired contact, there are problems of one kind or another, such as interference by the surrounding environment and electromagnetic fields, excessive volume, fragile and easy to break, complicated installation, and difficult maintenance , Not resistant to high temperature, poor insulation performance, prone to false alarms at high temperatures, large difference between temperature value and actual temperature value, replacement of batteries, short life, etc.

Method used

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  • Cable joint rear blanking cover, temperature measurement sensing apparatus and cable joint
  • Cable joint rear blanking cover, temperature measurement sensing apparatus and cable joint
  • Cable joint rear blanking cover, temperature measurement sensing apparatus and cable joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, a rear plug of a cable joint is plugged into the cable joint 5; the rear plug 1 is a cylindrical structure with one end blocked, which sequentially includes an integrally connected insulating layer 11 and a ring from the inside to the outside. An epoxy resin injection molding layer 12; a metal insert 13 is embedded in the rear plug cover 1, and the metal insert 13 is covered in the epoxy resin injection molding layer 11, and the terminal 52 of the cable joint 5 is connected to the The metal insert 13 is fixedly connected. The rear plug 1 of this embodiment can be a conical structure or a cylindrical structure. The insulating layer 11 in this embodiment can be made of insulating materials such as plastic.

[0030] Such as Figure 1-Figure 3 As shown, the metal insert 13 of this embodiment has a cylindrical structure with one end blocked and is arranged along the axial direction of the rear plug 1, and the open end of the metal insert 13 is c...

Embodiment 2

[0033] Such as Figure 1-Figure 3 As shown, a temperature sensing device in this embodiment includes a temperature sensor 4 and a rear plug 1 as described in Embodiment 1, and the temperature sensor 4 is crimped on the stud 2 and the Between the above-mentioned metal inserts 13. The stud bolts 2 are arranged along the axial direction of the rear plug cover 1 . The temperature measuring sensor 4 in this embodiment is a SAW temperature sensor or a radio frequency identification sensor. In this embodiment, the temperature measuring sensor is arranged between the stud bolt and the metal insert, so that the temperature measuring sensor is completely located inside the back cover, which can completely avoid the problem of insulation breakdown; and the temperature measuring sensor is directly connected to the stud bolt The stud bolts can directly transmit the temperature of the terminal to the temperature measuring sensor, realizing a complete contact temperature measurement and av...

Embodiment 3

[0038] A cable joint in this embodiment includes a plug-in tube 51 with one end blocked, a connection terminal 52 and a temperature measuring and sensing device as described in Embodiment 2; one end of the connection terminal 52 is connected to the cable 6, and the other One end is inserted into the inside of the plug-in tube 51 from the side wall of the plug-in tube 51 and is fixedly connected to the metal insert 13, and the terminal 52 is vertically fixedly connected to the plug-in tube 51; The open end of the insertion tube 51 is inserted into the insertion tube 51 from the open end of the insertion tube 51 . The cable joint of this embodiment has the advantages of simple structure, convenient installation, good insulation effect and maintenance-free.

[0039] The cable joint 5 of this embodiment further includes a rear protective cap 7 , the rear protective cap 7 is sleeved on the open end of the insertion tube 51 and covers the closed end of the rear blocking cover 1 .

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Abstract

The invention relates to a cable joint rear blanking cover, a temperature measurement sensing apparatus and a cable joint. The rear blanking cover is plugged into the cable joint; the rear blanking cover is of a cylindrical structure with one plugged end and successively comprises an insulation layer and an epoxy resin injection molding layer which are integrally connected from the inside to the outside; and a metal embedding member is laid in the rear blanking cover, the metal embedding member is wrapped by the epoxy resin injection molding layer, and a wiring terminal of the cable joint is fixedly connected with the metal embedding member. The rear blanking cover enhances insulation performance of the cable joint and guarantees overpressure-resistant performance of the cable joint.

Description

technical field [0001] The invention relates to the field of temperature measurement of cable joints of electric power equipment, in particular to a rear plug cover of a cable joint, a temperature measuring sensing device and a cable joint. Background technique [0002] Most of the safety accidents in the power distribution industry of my country's power system are caused by the heating of the connection points in the cabinet. Whether it is an active wired non-contact or a passive wired contact, there are problems of one kind or another, such as interference by the surrounding environment and electromagnetic fields, excessive volume, fragile and easy to break, complicated installation, and difficult maintenance , Not resistant to high temperature, poor insulation performance, prone to false alarms at high temperatures, large difference between temperature value and actual temperature value, replacement of batteries, short life, etc. Contents of the invention [0003] The te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/04H02G15/02G01K11/26G01K7/00
CPCG01K7/00G01K11/265H02G15/02H02G15/04
Inventor 张玉龙王建新张淑琴
Owner 廊坊芳远新合电气股份有限公司