Lightning protection device for rotating radar antenna

Abstract

The invention discloses a lightning arrester for rotating radar antennas, comprising a plurality of lightning rods, down leads, and a large-current diversion slip ring. The adjacent lightning rods are connected by a lightning rod connecting conductor. The lightning rod connecting conductor, the down leads and the large-current diversion slip ring are connected in sequence. The large-current diversion slip ring includes a large-current diversion slip ring rotating ring and a large-current diversion slip ring fixed ring, the large-current diversion slip ring rotating ring is connected with a rotating antenna body through high-voltage insulating devices, and the large-current diversion slip ring fixed ring is installed on an antenna metal turntable base. The large-current diversion slip ring fixed ring is equipped with a plurality of conductive carbon brushes, and the conductive carbon brushes are in elastic electrical contact with the large-current diversion slip ring rotating ring. High-voltage insulating devices are arranged between the lightning rods, the lightning rod connecting conductor and the down leads on one hand and the rotating antenna body on the other hand. The antenna metal turntable base is grounded. A rotating radar antenna can be protected from direct lightning attack without affecting normal work of the rotating radar antenna.

Description

technical field

[0001] The invention belongs to the field of lightning protection for electronic equipment, and in particular relates to a lightning protection device for a rotating radar antenna. Background technique

[0002] Lightning poses a serious hazard to electronic equipment. Both military and civilian communication systems and radar systems have been attacked by lightning, causing serious consequences such as equipment damage and system paralysis. Antennas of electronic equipment are usually arranged in cabins, building tops and masts. The location is relatively high and the surrounding environment is open. It is extremely vulnerable to lightning attacks and burns the circuits and functional modules at the rear end of the antenna and cables, and even endangers the safety of operators. Therefore, it is necessary to carry out lightning protection for various military and civilian communications, radar and other electronic equipment and systems to ensure the safety of...

Examples

Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] see figure 1 , a lightning protection device for a rotating radar antenna, comprising several lightning rods 1, down conductors 3, a large current diversion slip ring rotating ring 10, a large current diversion slip ring fixed ring 8, a conductive carbon brush 9, a state monitoring probe 15, Signal analysis shows terminal 18, the cross-sectional area of ​​down conductor 3 is not less than 70mm 2, and the material of the down conductor 3 is a high voltage insulated copper wire. If the top area of ​​the rotating antenna body 5 is not large, only install a lightning rod 1 in the center of the...

technical field

[0001] The invention belongs to the field of lightning protection for electronic equipment, and in particular relates to a lightning protection device for a rotating radar antenna. Background technique

[0002] Lightning poses a serious hazard to electronic equipment. Both military and civilian communication systems and radar systems have been attacked by lightning, causing serious consequences such as equipment damage and system paralysis. Antennas of electronic equipment are usually arranged in cabins, building tops and masts. The location is relatively high and the surrounding environment is open. It is extremely vulnerable to lightning attacks and burns the circuits and functional modules at the rear end of the antenna and cables, and even endangers the safety of operators. Therefore, it is necessary to carry out lightning protection for various military and civilian communications, radar and other electronic equipment and systems to ensure the safety of...

Examples

Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] see figure 1 , a lightning protection device for a rotating radar antenna, comprising several lightning rods 1, down conductors 3, a large current diversion slip ring rotating ring 10, a large current diversion slip ring fixed ring 8, a conductive carbon brush 9, a state monitoring probe 15, Signal analysis shows terminal 18, the cross-sectional area of ​​down conductor 3 is not less than 70mm 2, and the material of the down conductor 3 is a high voltage insulated copper wire. If the top area of ​​the rotating antenna body 5 is not large, only install a lightning rod 1 in the center of the...

Images