Wiring terminal and circuit breaker using same

A terminal block and circuit breaker technology, which is applied in the direction of protective switch terminals/connections, circuits, and parts of protective switches. It can solve problems such as poor contact between terminal blocks and external cables, burnout of circuit breakers, and heat generation, etc., to avoid contact adverse, safety-enhancing, effects of improving safety and reliability of use

Active Publication Date: 2021-03-19
QINGYUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]For the circuit breaker terminal in the 0.4KV meter box, when manually wiring, turn the adjusting bolt to achieve the compression of the terminal to the external cable, but this wiring method Often because the torque of the adjusting screw does not reach the calibrated torque, the contact between the terminal and the external cable is poor, resulting in heat generation and burning of the circuit breaker.

Method used

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  • Wiring terminal and circuit breaker using same
  • Wiring terminal and circuit breaker using same
  • Wiring terminal and circuit breaker using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1-Figure 2As shown, this embodiment discloses a connection terminal, which is used to connect the bus bar of the main circuit and the external cable 200. The connection terminal 100 includes a housing 1, a flexible ring sleeve 2, a clamping assembly 3, an adjusting bolt 4 and a torque indicator Disc 5, connecting terminal 100 and rotating adjusting bolt 4 have two working stages when wiring. The first stage is: the flexible ring sleeve 2 begins to shrink the storage space until it completely covers the external cable 200; the second stage is: continue to shrink the storage space, The flexible ring 2 starts to generate a tight force on the external cable 200, that is, the adjusting bolt 4 starts to receive a torque, and then displays the torque value. The shell 1 is made of insulating materials, such as hard plastic, resin, etc., and an electric shock warning sign is added outside the shell 1. The flexible ring 2 and the clamping assembly 3 are both locat...

Embodiment 2

[0057] This embodiment provides a connection terminal 100. Compared with the first embodiment, the basic structure of the connection terminal 100 provided by this embodiment is the same as that of the first embodiment, except that there are differences in the settings of the elastic member 32 and the torque indicating plate 5. The embodiment does not repeat the same structure as that of the first embodiment.

[0058] Elastic part 32 adopts tension spring, and tension spring is sleeved on the screw rod of adjustment bolt 4, and one end of tension spring is connected with stopper 42, and the other end is connected with the bottom wall of second cavity 12 and tension spring is always Being in a stretched state, the adjusting bolt 4 always has a tendency to move downward, reducing the operator's downward pressure on the adjusting bolt 4 and realizing quick adjustment of the flexible joint part 22, which is practical and convenient.

[0059] Further, the clamping protrusion 41 is m...

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PUM

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Abstract

The invention relates to the technical field of electricians, and discloses a wiring terminal and a circuit breaker using the wiring terminal. The wiring terminal comprises a shell, a flexible ring sleeve, a clamping assembly, an adjusting bolt and a torsion indicating dial; one end of the flexible ring sleeve is fixed in the shell, the other end of the flexible ring sleeve is used for accommodating an external cable, and the clamping assembly comprises a clamping piece and an elastic piece; one end of the flexible ring sleeve is sleeved with one end of the clamping piece, the elastic piece elastically abuts against the clamping piece to clamp an external cable, the tail end of a screw rod of the adjusting bolt is in threaded connection with the other end of the clamping piece, a clampingprotrusion is arranged at the root of the screw rod in a protruding mode, and the distance between the clamping piece and the clamping protrusion is adjusted by rotating the adjusting bolt; the torsion indicating dial is rotationally arranged on the shell and comprises a clamping groove capable of being matched with the clamping protrusion. When the adjusting bolt is subjected to external torsion,the torsion indicating dial displays a torsion value, maintenance personnel can conveniently and quickly judge the state of the adjusting bolt by observing whether the value reaches a standard valueor not, and the use safety and reliability of the wiring terminal are improved.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a connection terminal and a circuit breaker using the same. Background technique [0002] A circuit breaker is a switching device capable of closing, carrying and breaking current under normal or abnormal circuit conditions. Circuit breakers can be used to distribute electrical energy and protect power lines and motors. [0003] For the circuit breaker terminal in the 0.4KV electric meter box, when manually wiring, turn the adjusting bolt to realize the compression of the terminal to the external cable. Poor contact of the external cable will cause heat generation and burnout of the circuit breaker. [0004] Therefore, there is an urgent need for a connection terminal and a circuit breaker using the same to solve the above problems. Contents of the invention [0005] An object of the present invention is to provide a connection terminal that can display the torque value ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/04H01H71/08
CPCH01H71/08H01H71/04H01H2071/042
Inventor 欧阳书远赖育球曾穗明张雄标叶宇航黄水海陈奇芬
Owner QINGYUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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