CN220693514U - Surge protection device - Google Patents
Surge protection device Download PDFInfo
- Publication number
- CN220693514U CN220693514U CN202322344287.7U CN202322344287U CN220693514U CN 220693514 U CN220693514 U CN 220693514U CN 202322344287 U CN202322344287 U CN 202322344287U CN 220693514 U CN220693514 U CN 220693514U
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- Prior art keywords
- type connector
- shell
- cavity
- protection device
- surge protection
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- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000000428 dust Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a surge protection device which comprises a shell, wherein a cavity is formed in the middle of the shell, a radio frequency pulse circuit board is arranged in the cavity, a cover plate is detachably arranged on the upper surface of the cavity, an N-type connector a and an N-type connector b are arranged on the shell, the N-type connector a and the N-type connector b are positioned on different sides of the shell, an air discharge tube fixing screw and a grounding screw are arranged on the lower surface of the shell, and an air discharge tube sealing ring is arranged between the air discharge tube fixing screw and the shell. The beneficial effects of the utility model are as follows: the device is arranged at the position of a Faraday cage or a bulkhead, and the shell is provided with the air discharge pipe fixing screw and the grounding screw, so that surge transient overvoltage or transient overcurrent is grounded through the shell, and the N-type connector a and the N-type connector b arranged on the shell are isolated, so that the device has wide frequency band and can be applied to N-type coaxial line protection of indoor, outdoor, fixed and mobile scenes.
Description
Technical Field
The utility model relates to the technical field of lightning protection, in particular to a surge protection device.
Background
The antenna feeder surge protector can prevent the damage to the antenna and the receiving and transmitting equipment caused by the lightning strike overvoltage induced by the feeder line, is suitable for the surge protection of coaxial antenna feeder system signals such as satellite wireless communication, mobile base stations, microwave communication, broadcast television and the like, and is arranged in the lightning protection subarea LPZ0A-1 and the subsequent subareas. Most of the current antenna feed surge protectors are protected in a single stage, the working frequency band is narrow, and the application scene is limited.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a surge protection device.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a surge protection device, includes the casing, the cavity has been seted up at the middle part of casing, installs radio frequency pulse circuit board in the cavity, and the upper surface demountable installation of cavity has the apron, is provided with N type connector a and N type connector b on the casing, and N type connector a and N type connector b are located the different sides of casing, and the lower surface of casing is provided with air release pipe set screw and grounding screw, is provided with air release pipe sealing washer between air release pipe set screw and the casing.
Preferably, the shell is provided with a through hole, one end of the N-type connector a penetrates through the through hole and is positioned in the cavity, and the other end of the N-type connector a is provided with a dust cover.
Preferably, a through hole b is formed in the shell, one end of the N-type connector b penetrates through the through hole b and is located in the cavity, and a sealing ring b, an inner sawtooth locking washer, a nut and a dust cover are sequentially installed on the N-type connector b from inside to outside.
Preferably, a groove is formed in the outer side of the through hole b, and an N-head sealing ring is installed in the groove.
Preferably, the upper surface of the cavity is provided with a sealing groove, and a sealing ring is arranged in the sealing groove.
Preferably, a plurality of threaded holes are formed in the outer side of the sealing groove, mounting holes corresponding to the threaded holes are formed in the cover plate, and fixing screws are arranged in the mounting holes.
Preferably, the threaded holes are symmetrically distributed on the upper surface of the shell.
Preferably, the mounting hole is a counterbore.
The utility model has the following advantages: according to the utility model, the device is arranged at the position of the Faraday cage or the bulkhead, and the shell is provided with the air discharge pipe fixing screw and the grounding screw, so that surge transient overvoltage or transient overcurrent is grounded through the shell, and the N-type connector a and the N-type connector b arranged on the shell are isolated, so that the device has a wide frequency band, and can be applied to N-type coaxial line protection of indoor, outdoor, fixed and mobile scenes.
Drawings
FIG. 1 is a schematic diagram of an explosion configuration of a surge protection device;
FIG. 2 is a schematic structural view of the appearance of a surge protection device;
FIG. 3 is a schematic diagram of the internal circuitry of the RF pulse circuit board;
in the figure, a 1-dust cover, a 2-N type connector a, a 3-radio frequency pulse circuit board, a 4-N head sealing ring, a 5-sealing ring b, a 6-nut, a 7-N type connector b, an 8-internal sawtooth locking washer, a 9-shell, a 10-gas discharge tube sealing ring, a 11-gas discharge tube fixing screw, a 12-grounding screw, a 13-cover plate, a 14-fixing screw, a 15-through hole, a 16-groove, a 17-mounting hole, a 18-sealing groove and a 19-sealing ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In this embodiment, as shown in fig. 1 and 2, a surge protection device includes a housing 9, a cavity is provided in the middle of the housing 9, a radio frequency pulse circuit board 3 is installed in the cavity, a cover plate 13 is detachably installed on the upper surface of the cavity, an N-type connector a2 and an N-type connector b7 are provided on the housing 9, the N-type connector a2 and the N-type connector b7 are located on different sides of the housing 9, a gas discharge tube fixing screw 11 and a grounding screw 12 are provided on the lower surface of the housing 9, and a gas discharge tube sealing ring 10 is provided between the gas discharge tube fixing screw 11 and the housing 9. By installing the device at the Faraday cage or bulkhead position, the surge transient overvoltage or transient overcurrent is grounded through the shell 9 due to the arrangement of the air discharge pipe fixing screw 11 and the grounding screw 12 on the shell 9, and the N-type connector a2 and the N-type connector b7 arranged on the shell 9 are isolated, so that the device has wide frequency band and can be applied to N-type coaxial line protection of indoor, outdoor, fixed and mobile scenes. In this embodiment, the internal circuit of the rf pulse circuit board 3 is understood with reference to fig. 3, that is, the first stage adopts a parallel scheme of 2 gas discharge tubes, that is, one external and one internal, so as to reduce the risk of igniting the mounting screw and increase the protection effect; the second stage adopts TVS to reduce the residual voltage, and the circuit connection is not improved, which belongs to the prior art and will not be described in detail.
Further, a through hole 15 is formed in the housing 9, one end of the N-type connector a2 passes through the through hole 15 and is located in the cavity, and a dust cover 1 is arranged at the other end of the N-type connector a 2. Still further, the casing 9 is provided with a through hole b, one end of the N-type connector b7 passes through the through hole b and is positioned in the cavity, and the N-type connector b7 is provided with a sealing ring b5, an inner sawtooth locking washer 8, a nut 6 and a dust cover 1 from inside to outside in sequence. Preferably, a groove 16 is formed on the outer side of the through hole b, and an N-head sealing ring 4 is installed in the groove 16. Specifically, one end of the N-type connector b7 is positioned in the cavity through the through hole b, and is locked by the nut 6, so that the N-head seal ring 4 in the groove 16 is pressed, thereby ensuring the sealing effect.
In this embodiment, the upper surface of the cavity is provided with a sealing groove 18, and a sealing ring 19 is installed in the sealing groove 18. Further, a plurality of threaded holes are formed in the outer side of the sealing groove 18, mounting holes 17 corresponding to the threaded holes are formed in the cover plate 13, and fixing screws 14 are arranged in the mounting holes 17. Preferably, the mounting hole 17 is a counterbore. Still further, the threaded holes are symmetrically distributed on the upper surface of the housing 9. Specifically speaking, the installer passes through mounting hole 17 fixed connection at threaded hole with set screw 14, and apron 13 extrudees sealing washer 19 this moment to guarantee the leakproofness of cavity, the screw hole symmetric distribution makes apron 13 atress even on casing 9, and mounting hole 17 is the counter bore can avoid the installer to be scratched by set screw 14.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. A surge protection device, characterized by: including casing (9), the cavity has been seted up at the middle part of casing (9), install radio frequency pulse circuit board (3) in the cavity, the upper surface demountable installation of cavity has apron (13), be provided with N type connector a (2) and N type connector b (7) on casing (9), just N type connector a (2) with N type connector b (7) are located the different sides of casing (9), the lower surface of casing (9) is provided with gas and puts tub fixing screw (11) and grounding screw (12), gas is put tub fixing screw (11) with be provided with gas between casing (9) and put tub sealing washer (10).
2. The surge protection device of claim 1, wherein: the shell (9) is provided with a through hole (15), one end of the N-type connector a (2) penetrates through the through hole (15) and is located in the cavity, and the other end of the N-type connector a (2) is provided with a dust cover (1).
3. The surge protection device of claim 2, wherein: the novel anti-dust device is characterized in that a through hole b is formed in the shell (9), one end of the N-type connector b (7) penetrates through the through hole b and is located in the cavity, and a sealing ring b (5), an inner sawtooth locking washer (8), a nut (6) and the dust cover (1) are sequentially installed on the N-type connector b (7) from inside to outside.
4. A surge protection device according to claim 3, wherein: the outside of the through hole b is provided with a groove (16), and an N-head sealing ring (4) is arranged in the groove (16).
5. The surge protection device of claim 4, wherein: the upper surface of cavity has seted up seal groove (18), install sealing washer (19) in seal groove (18).
6. The surge protection device of claim 5, wherein: a plurality of threaded holes are formed in the outer side of the sealing groove (18), mounting holes (17) corresponding to the threaded holes are formed in the cover plate (13), and fixing screws (14) are arranged in the mounting holes (17).
7. The surge protection device of claim 6, wherein: the threaded holes are symmetrically distributed on the upper surface of the shell (9).
8. The surge protection device of claim 7, wherein: the mounting hole (17) is a counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344287.7U CN220693514U (en) | 2023-08-30 | 2023-08-30 | Surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344287.7U CN220693514U (en) | 2023-08-30 | 2023-08-30 | Surge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220693514U true CN220693514U (en) | 2024-03-29 |
Family
ID=90377019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322344287.7U Active CN220693514U (en) | 2023-08-30 | 2023-08-30 | Surge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220693514U (en) |
-
2023
- 2023-08-30 CN CN202322344287.7U patent/CN220693514U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |