Lightning protection device for radio frequency signals

Abstract

The utility model discloses a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor and comprises a first conductive connecting piece, a second conductive connecting piece and an enameled wire, the first conductive connecting piece is not contacted with the second conductive connecting piece, one end of the enameled wire is connected with the first conductive connecting piece, and the other end of the enameled wire is connected with the second conductive connecting piece. The length of the enameled wire is one fourth of the wavelength of the radio frequency signal. According to the utility model, the ultra-low residual voltage protection effect of radio frequency signals under various lightning protection grade conditions is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of lightning protection devices and relates to a lightning protection device for radio frequency signals. Background Art

[0002] At present, the main protection device used in the N-JK type RF lightning suppressor for ultra-low frequency RF signal lightning protection on the market is the 90V gas discharge tube.

[0003] The gas discharge tube lightning protection solution has the following disadvantages:

[0004] 1) The operating voltage error of the gas discharge tube is large, which is ±20%;

[0005] 2) The residual voltage of lightning protection is high, about 100V;

[0006] 3) The protected equipment in the downstream of the lightning protection circuit is very easy to be damaged, which requires a lot of manpower and financial resources to repair. Utility Model Content

[0007] The utility model aims to provide a lightning protection device for radio frequency signals, which realizes the effect of ultra-low protection residual pressure of radio frequency signals under various lightning protection level conditions.

[0008] The technical solution adopted by the utility model is that a lightning protection device for radio frequency signals is arranged in a radio frequency suppressor, and includes a first conductive connector, a second conductive connector and an enameled wire. The first conductive connector is not in contact with the second conductive connector, one end of the enameled wire is connected to the first conductive connector, and the other end of the enameled wire is connected to the second conductive connector. The length of the enameled wire is one quarter of the wavelength of the radio frequency signal.

[0009] The utility model is also characterized in that:

[0010] The first conductive connecting member and the second conductive connecting member are both conductive metal members.

[0011] The conductor in the enameled wire is copper wire.

[0012] An insulating column is arranged between the first conductive connector and the second conductive connector. The enameled wire is wound around the first conductive connector. Two ends of the enameled wire are respectively welded to the first conductive connector and the second conductive connector.

[0013] The first conductive connector and the second conductive connector are arranged vertically, the insulating column is arranged between the first conductive connector and the second conductive connector, one end of the insulating column contacts the first conductive connector, and an insulating gasket is arranged between the other end of the insulating column and the second conductive connector.

[0014] The beneficial effects of the utility model are:

[0015] 1) The utility model is used for a lightning protection device for radio frequency signals. When a lightning waveform is injected, the operating voltage of the radio frequency lightning suppressor has zero error;

[0016] 2) It can be applied to various lightning protection levels, such as A3 / A4 / A5 / B3 / B4 / B5;

[0017] 3) Achieved ultra-low protection residual pressure, effectively protecting the equipment from damage;

[0018] 4) Does not affect the standing wave and insertion loss technical parameters of the RF signal;

[0019] 5) Lightning protection devices can be used not only for N-JK type lightning suppressors, but also for TNC-JK type lightning suppressors, with strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the lightning protection device for radio frequency signals of the utility model;

[0021] Figure 2 yes Figure 1 Section view in the AA direction;

[0022] Figure 3 The utility model is a block diagram of the lightning protection principle of the enameled wire.

[0023] In the figure, 1. first conductive connecting member, 2. second conductive connecting member, 3. enameled wire, 4. insulating column, 5. insulating gasket. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3. The first conductive connector 1 does not contact the second conductive connector 2, one end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2. The length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal.

[0027] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0028] Example 2

[0029] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3. The first conductive connector 1 does not contact the second conductive connector 2. One end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2. The length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal. The first conductive connector 1 and the second conductive connector 2 are both conductive metal parts.

[0030] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0031] Example 3

[0032] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3. The first conductive connector 1 does not contact the second conductive connector 2. One end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2. The conductor in the enameled wire 3 is a copper wire, and the length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal.

[0033] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0034] Example 4

[0035] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3. The first conductive connector 1 does not contact the second conductive connector 2, one end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2.

[0036] The length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal. The one quarter wavelength enameled wire 3 presents high impedance and will not affect the transmission of the radio frequency signal.

[0037] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0038] Example 5

[0039] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3, wherein the conductor in the enameled wire 3 is a copper wire, the first conductive connector 1 is not in contact with the second conductive connector 2, one end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2.

[0040] The first conductive connecting member 1 and the second conductive connecting member 2 are both conductive metal members.

[0041] The length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal. The one quarter wavelength enameled wire 3 presents high impedance and will not affect the transmission of the radio frequency signal.

[0042] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0043] Example 6

[0044] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3. The first conductive connector 1 does not contact the second conductive connector 2, one end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2. The length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal.

[0045] An insulating column 4 is provided between the first conductive connector 1 and the second conductive connector 2 , the enameled wire 3 is wound around the first conductive connector 1 , and two ends of the enameled wire 3 are welded to the first conductive connector 1 and the second conductive connector 2 , respectively.

[0046] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0047] Example 7

[0048] The present embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, and includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3. The first conductive connector 1 does not contact the second conductive connector 2, one end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2. The length of the enameled wire 3 is one quarter of the wavelength of the radio frequency signal.

[0049] The first conductive connector 1 and the second conductive connector 2 are arranged up and down, an insulating column 4 is arranged between the first conductive connector 1 and the second conductive connector 2, one end of the insulating column 4 contacts the first conductive connector 1, and an insulating gasket 5 is arranged between the other end of the insulating column 4 and the second conductive connector 2.

[0050] The enameled wire 3 is wound on the first conductive connector 1 , and two ends of the enameled wire 3 are welded to the first conductive connector 1 and the second conductive connector 2 respectively.

[0051] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0052] Example 8

[0053] This embodiment provides a lightning protection device for radio frequency signals, which is arranged in a radio frequency suppressor, such as Figure 1-2 As shown, it includes a first conductive connector 1, a second conductive connector 2 and an enameled wire 3, the conductor in the enameled wire 3 is a copper wire, the length of the enameled wire 3 is a quarter wavelength of the radio frequency signal, the first conductive connector 1 is not in contact with the second conductive connector 2, one end of the enameled wire 3 is connected to the first conductive connector 1, and the other end of the enameled wire 3 is connected to the second conductive connector 2.

[0054] The first conductive connector 1 and the second conductive connector 2 are both conductive metal parts. The first conductive connector 1 and the second conductive connector 2 are arranged up and down. The first conductive connector 1 is in an I-shape, and the lower and middle parts of the first conductive connector 1 are hollow structures. The enameled wire 3 is wound around the middle of the outer wall of the first conductive connector 1, and the two ends of the enameled wire 3 are welded to the first conductive connector 1 and the second conductive connector 2 respectively. The insulating column 4 is arranged in the hollow structure of the first conductive connector 1, and the upper end face and the outer side wall of the insulating column 4 are both in contact with the first conductive connector 1, and the lower end face of the insulating column 4 is flush with the first conductive connector 1. An insulating gasket 5 is arranged between the lower end face of the insulating column 4 and the upper surface of the second conductive connector 2, and the insulating gasket 5 is also located at the lower surface of the first conductive connector 1 and the upper surface of the second conductive connector 2.

[0055] This embodiment only represents a preferred implementation of the lightning protection device for radio frequency signals of the utility model. Any lightning protection device designed with similar technical features to the utility model will fall within the protection scope of the lightning protection device for radio frequency signals of the utility model.

[0056] The lightning protection working principle of the lightning protection device for radio frequency signals of the utility model is as follows:

[0057] When the lightning protection device is installed in the N-JK type RF suppressor and the lightning energy is injected into the RF needle, the energy is conducted to the first conductive connector 1 through the RF needle, and then reaches the second conductive connector 2 through the 1 / 4 wavelength enameled wire 3 welded to the first conductive connector 1 and the second conductive connector 2. The second conductive connector 2 is overlapped with the nut on the N-JK type RF suppressor shell, and finally the lightning energy is discharged to the N-JK type RF suppressor shell, and then discharged to the system shell ground through the grounding wire on the N-JK type RF suppressor shell, thereby realizing lightning protection of 15MHz RF signal.

[0058] 15MHz RF signal B4 level lightning protection adopts 1 / 4 wavelength enameled wire protection principle:

[0059] like Figure 3 As shown, in the 15MHz frequency band, the 1 / 4 wavelength copper wire presents high impedance and will not affect the transmission of RF signals. When low-frequency instantaneous lightning pulse energy comes, the 1 / 4 wavelength copper wire is turned on and discharges the lightning current to the ground.

[0060] The performance parameters of the lightning protection device for radio frequency signals of the utility model when used in N-JK or TNC-JK radio frequency lightning suppressors are as follows:

[0061] 1) Operating frequency: 15MHz;

[0062] 2) Standing wave ratio: ≤1.2:1;

[0063] 3) Insertion loss: ≤0.2dB;

[0064] 4) Maximum power: ≤200W;

[0065] 5) Lightning protection residual voltage: ≤15V.

[0066] From the above content, it can be seen that the lightning protection device for radio frequency signals of the utility model has the following advantages:

[0067] 1) The lightning protection device for radio frequency signals of the utility model can meet the lightning protection requirements of 15MHz radio frequency signals.

[0068] 2) Conventional lightning protection devices have a standing wave value of 1.5 and an insertion loss of 0.5dB. The lightning protection device of the utility model for radio frequency signals has a lower standing wave value of 1.2 and an insertion loss value of 0.2dB, which can reduce the impact of the lightning protection device on the radio frequency signal transmission performance parameters to a greater extent.

[0069] 3) The lightning protection device for radio frequency signals of the utility model meets the lightning protection requirements of radio frequency signals at different lightning protection levels and is applicable to a variety of N-JK and TNC-JK radio frequency lightning suppressors.

[0070] 4) The lightning protection device for radio frequency signals of the utility model can achieve an ultra-low lightning protection residual voltage of ≤15V, ensuring that the protected equipment will not be damaged.

Claims

1. A lightning protection device for radio frequency signals, arranged in a radio frequency suppressor, characterized in that: The invention comprises a first conductive connector (1), a second conductive connector (2) and an enameled wire (3), wherein the first conductive connector (1) is not in contact with the second conductive connector (2), one end of the enameled wire (3) is connected to the first conductive connector (1), and the other end of the enameled wire (3) is connected to the second conductive connector (2), and the length of the enameled wire (3) is one quarter of the wavelength of a radio frequency signal.

2. The lightning protection device for radio frequency signals according to claim 1, characterized in that: The first conductive connecting member (1) and the second conductive connecting member (2) are both conductive metal members.

3. The lightning protection device for radio frequency signals according to claim 1, characterized in that: The conductor in the enameled wire (3) is a copper wire.

4. The lightning protection device for radio frequency signals according to claim 1, characterized in that: An insulating column (4) is provided between the first conductive connecting member (1) and the second conductive connecting member (2), the enameled wire (3) is wound around the first conductive connecting member (1), and two ends of the enameled wire (3) are respectively welded to the first conductive connecting member (1) and the second conductive connecting member (2).

5. The lightning protection device for radio frequency signals according to claim 4, characterized in that: The first conductive connection member (1) and the second conductive connection member (2) are arranged vertically, the insulating column (4) is arranged between the first conductive connection member (1) and the second conductive connection member (2), one end of the insulating column (4) is in contact with the first conductive connection member (1), and an insulating gasket (5) is arranged between the other end of the insulating column (4) and the second conductive connection member (2).

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