A disc insulator for gas-insulated metal-enclosed switchgear

By pre-embedding a live-line indicator sensor and pre-embedded wires in a disc insulator and casting them, combined with the design of a stepped shaft joint, the problems of complex structure and inconvenient installation of the live-line indicator sensor are solved, achieving simple installation and miniaturization, and improving safety and reliability.

CN224437291UActive Publication Date: 2026-06-30YUNNAN YUNKAI ELECTRIC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN YUNKAI ELECTRIC
Filing Date
2025-08-13
Publication Date
2026-06-30

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Abstract

This utility model relates to the field of gas-insulated metal-enclosed switchgear, and discloses a disc insulator for gas-insulated metal-enclosed switchgear, mainly composed of a disc insulator, a live-line indicator sensor, a connector, sensor wires, and pre-embedded wires. This utility model adopts a structure in which the live-line indicator sensor is pre-embedded in the disc insulator, solving the problems of large size, complex structure, and inconvenient installation of external live-line indicator sensors.
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Description

Technical Field

[0001] This utility model relates to the field of gas-insulated metal-enclosed switchgear, specifically a disc insulator for gas-insulated metal-enclosed switchgear. Background Technology

[0002] Gas-insulated metal-enclosed switchgear is widely used in power systems. Live-line indicator sensors are crucial components of these switchgear, used to sense the voltage of conductors and transmit the induced signal to a live-line indicator device. This monitors and protects the safe operation of the power system, playing a control and protection role for the power system and electrical equipment. Currently, domestically produced live-line indicator sensors come in various forms, are complex in structure, inconvenient to install, and expensive.

[0003] Therefore, based on the above problems, this utility model provides a disc insulator for gas-insulated metal-enclosed switchgear. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model provides a disc insulator for gas-insulated metal-enclosed switchgear.

[0005] The present invention adopts the following technical solution:

[0006] A disc insulator for gas-insulated metal-enclosed switchgear comprises a disc insulator, a live-line indicator sensor, a connector, sensor wires, and embedded wires. The live-line indicator sensor and embedded wires are pre-embedded in the disc insulator and cast into shape. The live-line indicator sensor is connected to the sensor wires through the connector.

[0007] Furthermore, the connector is configured as a stepped shaft, with an external thread at the small end and an internal thread hole at the large end.

[0008] Compared with the prior art, the advantages of this utility model are: simple structure, convenient installation, and small size. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the disc insulator of this utility model.

[0010] Figure 2 This is an enlarged view of the embedded part of the live display sensor of this utility model.

[0011] Figure 3 This is an exploded view of the present invention.

[0012] In the diagram: 1-Disc insulator, 2-Cyclic display sensor, 3-Connector, 4-Sensor wire, 5-Embedded wire. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0014] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "connection" or "linkage" as used in this invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0015] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0016] This utility model discloses a disc insulator for gas-insulated metal-enclosed switchgear. This utility model has a simple structure, is easy to install, has a small size, and improves safety and reliability.

[0017] See Figure 1 , Figure 2 , Figure 3 This utility model discloses a disc insulator for gas-insulated metal-enclosed switchgear, comprising a disc insulator 1, a live indicator sensor 2, a connector 3, a sensor wire 4, and a pre-embedded wire 5. First, the live indicator sensor 2 and the pre-embedded wire 5 are placed in the disc insulator 1 as shown in the diagram. The pre-embedded wire 5 is connected to the conductor of the disc insulator 1. Then, the disc insulator 1 is cast to complete the pre-embedding. Next, the connector 3 is screwed into the threaded hole of the live indicator sensor 2 at the corresponding position on the disc insulator 1. Finally, the threaded end of the sensor wire 4 is screwed into the internal threaded hole of the connector 3 for tightening, completing the installation.

[0018] By adopting the above structure, the live display sensor is pre-embedded in the disc insulator during casting, which solves the problems of complex structure and inconvenient installation of external live display sensors.

[0019] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A disc insulator for gas-insulated metal-enclosed switchgear, characterized in that: It consists of a disc insulator (1), a live display sensor (2), a connector (3), a sensor wire (4), and a pre-embedded wire (5). The live display sensor (2) and the pre-embedded wire (5) are pre-embedded in the disc insulator (1) and cast into shape. The live display sensor (2) and the sensor wire (4) are connected through the connector (3).

2. The disc insulator for gas-insulated metal-enclosed switchgear according to claim 1, characterized in that: The connector (3) is configured as a stepped shaft with an external thread at the small end and an internal thread hole at the large end.