An electromagnetic pulse suppression device

Abstract

The utility model discloses an electromagnetic pulse suppression device, including the casing, be provided with the coaxial connector in the casing, the middle part of coaxial connector is provided with the installation cavity, and the protective circuit board is installed in the installation cavity, and the end face of coaxial connector is installed with the baffle through bolt a, and the end of coaxial connector is installed with the end through hexagon nut. The utility model has the beneficial effects that: install the coaxial connector and protective circuit board in the airtight space, effectively reduce the space occupancy of electromagnetic pulse suppressor, when using, install in the coaxial cable between antenna and equipment or install on the antenna seat bottom or adapter plate directly in series, can realize many environment, many condition use, and the casing has good conductivity simultaneously, can pass through the casing and be well grounded to the surge transient overvoltage or overcurrent, thereby transient voltage protection to the lower residual energy.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic pulse protection technology, and in particular to an electromagnetic pulse suppression device. Background Technology

[0002] Currently, products with induced lightning and electromagnetic pulse protection are large in size when transmitting high power, which cannot meet the requirements for use in confined spaces. Moreover, they generally adopt single-level protection, which makes it difficult to reduce residual voltage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electromagnetic pulse suppression device.

[0004] The purpose of this utility model is achieved through the following technical solution: an electromagnetic pulse suppression device, including a housing, a coaxial connector is provided inside the housing, a mounting cavity is provided in the middle of the coaxial connector, a protective circuit board is installed in the mounting cavity, a baffle is installed on one end face of the coaxial connector by bolt a, and an end cap is installed on the end of the coaxial connector by a hexagonal nut.

[0005] Preferably, one end surface of the coaxial connector has a step a and a step b, with step a located inside step b, a waterproof ring a installed on step a, and a waterproof ring b installed on step b.

[0006] Preferably, the mounting cavity has a mounting hole a, and the protective circuit board is installed in the mounting cavity by bolt b.

[0007] Preferably, the other end of the coaxial connector has a mounting groove, in which a waterproof ring c is installed. The surface of the coaxial connector also has a mounting hole b, in which a bolt a is installed.

[0008] This utility model has the following advantages: By installing the coaxial connector and protective circuit board in a closed space, this utility model effectively reduces the space occupied by the electromagnetic pulse suppressor. In use, it can be directly connected in series in the coaxial cable between the antenna and the equipment, or installed at the bottom of the antenna mount or on the adapter board, which can realize the use in multiple environments and conditions. At the same time, due to the good conductivity of the shell, the surge transient overvoltage or overcurrent can be grounded well through the shell, thereby protecting the transient voltage to a low residual energy. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of an electromagnetic pulse suppression device;

[0010] Figure 2 A schematic diagram illustrating the circuit principle of the protective circuit board;

[0011] In the diagram, 1-waterproof ring a, 2-coaxial connector, 3-mounting cavity, 4-mounting hole a, 5-mounting hole b, 6-waterproof ring b, 7-protective circuit board, 8-housing, 9-waterproof ring c, 10-baffle, 11-end, 12-hexagonal nut. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In this embodiment, as Figure 1 As shown, an electromagnetic pulse suppression device includes a housing 8, a coaxial connector 2 disposed within the housing 8, a mounting cavity 3 in the middle of the coaxial connector 2, and a protective circuit board 7 mounted within the mounting cavity 3. Preferably, the mounting cavity 3 has a mounting hole a4, and the protective circuit board 7 is mounted within the mounting cavity 3 by bolts b. A baffle 10 is mounted on one end face of the coaxial connector 2 by bolts a, and an end cap 11 is mounted on the end of the coaxial connector 2 by hexagonal nuts 12. By mounting the coaxial connector 2 and the protective circuit board 7 in a sealed space, the space occupied by the electromagnetic pulse suppressor is effectively reduced. In use, it can be directly connected in series in the coaxial cable between the antenna and the equipment, or mounted on the bottom of the antenna mount or an adapter plate, enabling use in multiple environments and under multiple conditions. Simultaneously, due to the good conductivity of the housing 8, surge transient overvoltages or overcurrents can be effectively grounded through the housing 8, thereby protecting transient voltages to a low residual energy. Further, as... Figure 2 As shown, the protective circuit board 7 employs a gas discharge tube, a bandpass filter, and a voltage limiting circuit for multi-level protection. Specifically, the gas discharge tube serves as the first level of protection, characterized by low capacitance and high current capacity, capable of discharging the main energy of lightning current and electromagnetic pulses, and normally operates in a high-impedance state. The bandpass filter, as the second level of protection, consists of a capacitor and an inductor connected in series, capable of filtering out the portion of residual energy outside the bandpass after the first level of protection. The third level of protection uses ultra-fast response time semiconductor devices, where the operator can select an appropriate on-state voltage according to actual needs. Through multi-level protection, high-power transmission is ensured while the residual voltage within the bandpass of the preceding stages is limited in multiple stages, minimizing the residual voltage of the protected equipment.

[0019] In this embodiment, one end surface of the coaxial connector 2 has steps a and b, with step a located inside step b. A waterproof ring a1 is installed on step a, and a waterproof ring b6 is installed on step b. Furthermore, the other end surface of the coaxial connector 2 has a mounting groove in which a waterproof ring c9 is installed. The surface of the coaxial connector 2 also has a mounting hole b5, in which a bolt a is installed. Specifically, by installing waterproof rings a1, b6, and c9 at both ends of the coaxial connector 2, the sealing and waterproofing of the waterproof circuit board 7 are ensured, providing a good electromagnetic compatibility space for the protective circuit board 7.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electromagnetic pulse suppression device, characterized in that: Includes a housing (8), a coaxial connector (2) is provided inside the housing (8), a mounting cavity (3) is provided in the middle of the coaxial connector (2), a protective circuit board (7) is installed in the mounting cavity (3), a baffle (10) is installed on one end face of the coaxial connector (2) by bolt a, and an end head (11) is installed at the end of the coaxial connector (2) by hexagonal nut (12).

2. The electromagnetic pulse suppression device according to claim 1, characterized in that: The coaxial connector (2) has a step a and a step b on one end surface. The step a is located inside the step b. A waterproof ring a (1) is installed on the step a, and a waterproof ring b (6) is installed on the step b.

3. The electromagnetic pulse suppression device according to claim 2, characterized in that: The mounting cavity (3) is provided with mounting holes a (4), and the protective circuit board (7) is installed in the mounting cavity (3) by bolts b.

4. The electromagnetic pulse suppression device according to claim 3, characterized in that: The other end of the coaxial connector (2) has an installation groove, in which a waterproof ring c (9) is installed. The surface of the coaxial connector (2) also has an installation hole b (5), in which the bolt a is installed.

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