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Single path 3G high definition video bidirectional lightning arrester

A high-definition video, lightning protection technology, applied in circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. protection and other issues, to achieve good grounding and isolation, ensure high-speed transmission, and prevent non-directional intrusion.

Inactive Publication Date: 2017-10-03
四川赛尔特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the lightning protector in the prior art can only protect against lightning in one direction, and cannot provide all-round protection. The purpose is to provide a single-channel 3G high-definition video two-way The two-way protection of the end and the device end prevents the non-directional intrusion of lightning current in all directions

Method used

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  • Single path 3G high definition video bidirectional lightning arrester
  • Single path 3G high definition video bidirectional lightning arrester
  • Single path 3G high definition video bidirectional lightning arrester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, a single-channel 3G high-definition video two-way lightning protection device includes an interface terminal J1 and an interface terminal J2. The interface terminal J1 includes a terminal J1-1 and a terminal J1-2. The interface terminal J2 includes J2-1 terminal and J2-2 terminal, the J1-1 terminal and J2-1 terminal are connected by a signal line, and the signal line is marked as A signal line; the J1-2 terminal terminal and terminal J2-2 through a signal line, the signal line is marked as the B signal line, there are two bridges between the A signal line and the B signal line, and the two bridges are connected in parallel. Among them,

[0047] The bridge close to the interface terminal J1 includes an interline discharge tube G1 and a low capacitance diode F1, one end of the interline discharge tube G1 is connected to the B signal line, and the connection point between the interline discharge tube G1 and the B signal line is marked as node c ...

Embodiment 2

[0060] The difference between this embodiment and Embodiment 1 is that the circuits and devices between the interface terminal J1 and the interface terminal J2 are integrated on the PCB, such as figure 2 As shown, the PCB board has a four-layer structure, and the PCB board is top layer, PE1 layer, PE2 layer and bottom layer from top to bottom, wherein, the ground discharge tube G3 and the ground discharge tube G4 are arranged on the PE2 layer and the PE1 layer ; The bridges close to the interface terminal J1 and the bridge close to the interface terminal J2 are arranged on the bottom layer and the top layer.

[0061] The thickness of the entire PCB board is 1.60±0.18mm, and the surface coating is chemical nickel gold. The PCB board is made of mixed and pressed FR4 and Rogers4350 RF boards. The dielectric loss of the plate is measured under the same standard, only 0.0009, the extremely low dielectric loss makes it very suitable for high-frequency and wide-band applications th...

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Abstract

The invention discloses a single path 3G high definition video bidirectional lightning arrester. Two bridge circuits are arranged between an A signal line and a B signal line, the bridge circuit close to an interface terminal J1 comprises an inter-line discharging pipe G1 and a low capacitance diode F1, one end of the inter-line discharging pipe G1 is connected with the signal line B while the other end is connected with one end of the low capacitance diode F1; the other end of the low capacitance diode F1 connected with the inter-line discharging pipe G1 is connected with the A signal line; the bridge circuit close to the interface terminal J2 comprises an inter-line discharging pipe G2 and a low capacitance diode F2, one end of the inter-line discharging pipe G2 is connected with the A signal line, and the other end of the inter-line discharging pipe G2 is connected with one end of the low capacitance diode F2; the other end of the low capacitance diode F2 connected with the inter-line discharging pipe G2 connected with the B signal line. According to the lightning arrester provided by the invention, the two specific bridge circuits and a circuit discharging to the earth are arranged between the signal lines, so that bidirectional protection to the input side and the equipment side is achieved, and directionless invasion of lightning currents can be prevented in all directions.

Description

technical field [0001] The invention relates to the field of lightning protection, in particular to a single-channel 3G high-definition video bidirectional lightning protection device. Background technique [0002] Surge Protection Devices, referred to as SPD, also known as surge protector, overvoltage protector, commonly known as lightning arrester, lightning protection device. From the perspective of response characteristics, there are two types of lightning arrester components, soft and hard. The discharge elements with hard response characteristics include spark gaps (corner spark gaps and coaxial discharge spark gaps based on chopping arc technology) and gas discharge tubes. The discharge elements with soft response characteristics include metal oxide varistors and transient suppression diodes . The difference between these components lies in the discharge capacity, response characteristics and residual voltage. The arrester uses their different advantages and disadva...

Claims

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Application Information

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IPC IPC(8): H02H9/04
CPCH02H9/041H02H9/042
Inventor 田永盛
Owner 四川赛尔特科技有限公司
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