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Low residual voltage ultra-broadband coaxial arrester

An ultra-broadband, low residual voltage technology, applied in overvoltage arresters, electrical components, spark gaps, etc. that use spark gaps, can solve problems such as communication signal distortion, fewer discharge channels, and short-circuit coaxial cores, etc. Strong authenticity, wide application range, and many flow channels

Inactive Publication Date: 2015-12-30
WENZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the deficiencies of the background technology, the present invention provides a low residual voltage ultra-broadband coaxial surge arrester, which mainly solves the problems of the existing coaxial surge arrester with few discharge channels, thin short-circuit coaxial core, and poor flow capacity; The problem of high residual voltage caused by sufficient and easy damage to the protected equipment; the passband is not wide enough, the application range is small, and the problem of communication signal distortion

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described: as figure 1 combine Figure 2 to Figure 3 As shown, a low residual voltage ultra-broadband coaxial surge arrester includes a shell 1 and a core 2 coaxially installed at intervals, and the shell 1 includes a main coaxial shell 3 and a short-circuit coaxial Housing 4, the core body 2 includes a main coaxial core 5 and a short-circuit coaxial core 6 that are vertically installed and electrically connected to each other, and insulating supports 51 are provided at both ends of the main coaxial core 5, and the main coaxial core 5 The shaft core 5 includes an interface portion 53 passing through the insulating supports 51 and a core body portion 52 of equal diameter arranged between the two insulating supports 51. The main coaxial housing 3 is coaxially provided with a number of different diameters. cavity. This embodiment adopts an N-type interface, and the interface part 53 is ...

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Abstract

Provided is a low-residual-voltage ultra wide band coaxial lightning arrester. The problem that an existing coaxial lightning arrester is few in discharging channel, poor in through-current capability, high in residual voltage caused by insufficient discharging, narrow in transmission band and small in application, easily damages a protected device and causes communication signal distortion is mainly solved. The low-residual-voltage ultra wide band coaxial lightning arrester is characterized in that each main coaxial core (5) comprises an interface portion (53) penetrating insulation supports (51) and an equant core body portion (52) arranged between the insulation supports (51), and a plurality of cavities different in diameter are coaxially arranged inside a main coaxial housing (3). The main coaxial cores of the low-residual-voltage ultra wide band coaxial lightning arrester are even, and impedance matching is achieved by adopting a method of changing the diameters of the cavities of the main coaxial housing. The low-residual-voltage ultra wide band coaxial lightning arrester is wide in band width, large in through-current channel number, high in through-current capacity, rich in high-frequency digital signal frequency spectrum, high in signal fidelity, wide in application range, complete in discharging, low in residual voltage and high in protectiveness on an instrument device behind the lightning arrester.

Description

technical field [0001] The lightning arrester of the invention is mainly used in the microwave communication field, and particularly relates to a low residual voltage ultra-broadband coaxial lightning arrester. Background technique [0002] Reasonable installation of lightning arresters for communication equipment is the first choice to prevent them from being struck by lightning. This kind of lightning arrester must be able to filter out lightning on the one hand, and at the same time, it must not have too much influence on the transmitted communication signal. The coaxial arrester is an arrester designed according to the spectrum distribution of the communication signal and the lightning pulse. The spectrum of the lightning pulse is mainly DC and low frequency components with a frequency below tens of kilohertz, while the communication frequency is a microwave signal with a frequency of several hundred megabytes or more, such as 800~2500MHz. The difference between the two...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T4/00H01T4/02
Inventor 宋占海王一芳
Owner WENZHOU UNIV
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