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Auxiliary cut-off device for electric switchgear

A cutting-off device and electric switch technology, applied in the direction of contact electrical connection, etc., can solve problems such as line connection, poor contact, troublesome installation of personnel, etc., and achieve the effect of increasing the connection area, preventing instability, and preventing displacement

Active Publication Date: 2021-09-24
NANTONG SANXI ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the conductor and the contact are connected and contacted, and the conductor is mostly a wire, because of the large output inside, there will be multiple wires winding for the wire arrangement and connection, and when connecting, multiple wires need to be connected to the auxiliary cutting device together However, the in-line auxiliary switch cannot fix multiple lines together, so that when the conductor is connected to the contact, the line cannot be completely connected to the contact at one time, which will cause poor contact and make the auxiliary cut-off If the device cannot operate normally, it still needs to be debugged by the equipment installer, which increases the installation time of the personnel and makes the installation of the personnel more troublesome

Method used

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  • Auxiliary cut-off device for electric switchgear
  • Auxiliary cut-off device for electric switchgear
  • Auxiliary cut-off device for electric switchgear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: An auxiliary disconnecting device for electric switchgear, including a top cover 1 and a base 2, and a contact assembly 3 capable of stably installing and conducting conductors is arranged between the top cover 1 and the base 2.

[0026] The bottom of the contact assembly 3 is fixedly connected with a contact box 308, the middle of the contact assembly 3 is fixedly connected with a contact tube 302, the outer surface of the contact tube 302 is fixedly connected with a contact plate 305, and the top of the contact assembly 3 is fixedly connected with a cover sheet 301, An elastic piece 303 is fixedly connected to the bottom of the cover piece 301 .

[0027] Both the contact plate 305 and the contact tube 302 are made of copper material. The contact plate 305 is located at the front and back of the contact tube 302. The contact inner rod 307 is connected with an insulating plate to make the structure have good conductivity.

[0028] Wherein, the contact box ...

Embodiment 2

[0031] Embodiment 2: The difference between Embodiment 2 and Embodiment 1 is that the bottom of the elastic sheet 303 is fixedly connected with a fixed spring 309, a contact inner rod 307 and a cable 304, and the contact inner rod 307 is located at the middle position of the fixed spring 309, and the cable The wire 304 is located around the perimeter of the contact inner rod 307 .

[0032] The top of the elastic piece 303 is fixedly connected with a lifting handle 310, the outer surface of the fixed spring 309 is respectively fixed with a fixed lower tooth 311 and a fixed upper tooth 312, and the inside of the fixed spring 309 is fixedly connected with an internal tooth 313, which contacts the inner rod 307. A protective sleeve 306 is movably connected under the outer surface, and the bottom of the protective sleeve 306 is connected with the contact plate 305;

[0033] The bottom end of the protective sleeve 306 is fixed to the top of the contact plate 305, and the contact inn...

Embodiment 3

[0038]Embodiment 3: The difference between Embodiment 3 and Embodiment 2 is that the inside of the top cover 1 is fixedly connected with an insulating ring 101, and the inside of the insulating ring 101 is movably connected with a central axis 201, and the central axis is located on the vertical central axis of the insulating ring 101. Location.

[0039] Wherein, the insulating ring 101 is made of rubber material, the thickness of the insulating ring 101 is greater than the thickness of the top cover 1, and the insulating ring is embedded in the middle position of the top cover 1, so as to isolate the gap between the top cover 1 and the internal structure, and prevent the occurrence of discharge phenomenon .

[0040] Wherein, the inside of the insulating ring 101 fits closely with the central shaft 201, the central shaft 201 runs through the top cover 1 and the contact tube 302 in turn, and the bottom end of the central shaft 201 extends to the bottom of the contact box 308 an...

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Abstract

The invention provides an auxiliary cutting device for electric switchgear, which includes a top cover and a base, and a contact assembly capable of stably installing and conducting conductors is arranged between the top cover and the base. The electric switchgear provided by the invention Auxiliary cutting device, through the fixed spring structure in the contact assembly, by using the pull handle, the pull handle can make the fixed spring in the contact assembly deform with the pull, so that the fixed spring can be fixed in the process of recovery. The structure of the tooth and the fixed lower tooth is embedded in each other, which can stably fix one end of the connected conductor and prevent the displacement of the one end of the conductor. The fixed upper tooth and lower tooth of the hard rubber structure protect the conductor and prevent the outer skin of the conductor from being damaged. The multi-layer surrounding structure of the fixed spring can connect multiple conductors in different areas at the same time, preventing instability when multiple conductors are connected.

Description

technical field [0001] The invention relates to the field of electric switchgear, in particular to an auxiliary cutting device for electric switchgear. Background technique [0002] The auxiliary switch is installed near the main switch and is mainly used in electrical switching equipment. The auxiliary switch is generally composed of multiple pairs of normally open and normally closed auxiliary contact units. The function is to pass through the connecting rod after a mechanical action is completed. Or parts such as boards transmit this mechanical action to the auxiliary switch. It is necessary to use connecting wires to connect with the electrical switchgear. Generally, the wire conductor is wound and connected with the screw by screw rotation. However, when multiple sets of wires are used to connect with the auxiliary switch, it will make the The connection between the wire and the auxiliary switch is easy to be unstable, causing the wire to fall. [0003] Aiming at the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/58
CPCH01H1/58
Inventor 于海洋
Owner NANTONG SANXI ELECTRONICS CO LTD