CN211958732U

CN211958732U - Lightning protection filter applied to parallel electronic shelter

Info

Publication number: CN211958732U
Application number: CN202020857483.8U
Authority: CN
Inventors: 李稳良; 胡江为
Original assignee: Zhejiang Wenshan Electric Technology Co ltd
Current assignee: Feilai (Zhejiang) Technology Co.,Ltd.
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-11-17
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a be applied to parallelly connected type electron shelter lightning protection filter, including the lightning protection filter main part, four fixed orificess have all been seted up to lightning protection module circuit board, the absorption filter circuit board's that low frequency reflection-type LC filter circuit board and coaxial-type distributed parameter circuit constitute upper surface, and the inside of every fixed orifices all is provided with the pillar with installation casing fixed connection, and the upper end of pillar is seted up flutedly, and the inboard rotation of recess is connected with the connecting axle, and gag lever post and two wind springs have been cup jointed respectively in the outside of connecting axle, every wind spring all with gag lever post fixed connection. The utility model provides an absorption formula filter circuit board that lightning protection module circuit board, low frequency reflection-type LC filter circuit board and coaxial-type distribution parameter circuit constitute all is connected with the installation casing through pillar and fixed orifices to utilize the gag lever post to fix under the effect of wind spring and connecting axle, thereby make things convenient for the dismouting circuit board, improved maintenance and equipment speed.

Description

Lightning protection filter applied to parallel electronic shelter

Technical Field

The utility model relates to a power electronic technology field specifically is for being applied to parallelly connected type electron shelter lightning protection filter.

Background

In recent years, the shielding shelter as an electronic equipment maneuvering carrier is widely applied to electronic systems of aviation, aerospace, ships and ground. The electromagnetic environment of these systems is very broad and the field strength is also large. Because the electromagnetic coupling of the electromagnetic waves to the shielding shelter is realized through the field-field coupling of the radiation field on one hand and the field-line coupling of the power line and the signal line on the other hand, in order to ensure that the shielding shelter achieves the specified shielding effectiveness in the complex electromagnetic environment and eliminate the electromagnetic interference introduced by the power line, a power filter with the insertion loss equivalent to the shielding effectiveness index of the shielding shelter must be developed.

The circuit board of current lightning protection filter adopts the fix with screw usually, leads to the circuit board dismouting troublesome like this, has reduced maintenance and equipment speed. For this reason, a lightning protection filter applied to a parallel type electronic shelter is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applied to parallelly connected type electron shelter lightning protection filter, the circuit board of having solved current lightning protection filter adopts the fix with screw usually, leads to the circuit board dismouting troublesome like this, has reduced the problem of maintenance and equipment speed.

In order to achieve the above object, the utility model provides a following technical scheme: the lightning protection filter applied to the parallel electronic shelter comprises a main body of the lightning protection filter, wherein the main body of the lightning protection filter comprises an installation shell arranged at the bottom, the lower surface of the inner cavity of the mounting shell is respectively provided with an absorption type filter circuit board consisting of a lightning protection module circuit board, a low-frequency reflection type LC filter circuit board and a coaxial type distributed parameter circuit, four fixing holes are arranged on the upper surface of the absorption type filter circuit board consisting of the lightning protection module circuit board, the low-frequency reflection type LC filter circuit board and the coaxial type distributed parameter circuit, a supporting column fixedly connected with the mounting shell is arranged inside each fixing hole, the upper end of the pillar is provided with a groove, the inner side of the groove is rotatably connected with a connecting shaft, the outer side of the connecting shaft is respectively sleeved with a limiting rod and two coil springs, and each coil spring is fixedly connected with the limiting rod.

Preferably, the bottom of the installation shell is fixedly connected with a waveguide tube, and the installation shell is made of a material plated with copper and then plated with nickel on steel.

Preferably, a partition board is fixedly mounted on the inner side of the mounting shell, the partition board is located between the lightning protection module circuit board and the low-frequency reflection type LC filter circuit board, and line pipelines are symmetrically arranged inside the partition board.

Preferably, the top of installation casing is provided with sealed lid, spacing hole has all been seted up to the both sides of sealed lid, just the slot with spacing hole intercommunication is seted up to the lower surface symmetry of sealed lid, the equal fixed mounting in both sides of installation casing has the fixed plate, the last fixed surface of fixed plate installs the inserted block that corresponds with the slot, one side fixed mounting of inserted block has the stopper that matches with spacing hole.

Preferably, a top rod is arranged in the limiting hole, a pressing block is fixedly connected to one end of the top rod, and a return spring is fixedly mounted between the pressing block and the sealing cover.

Preferably, the return spring is located on the outer side of the ejector rod, and the ejector rod and the pressing block are of an integrally formed structure.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides an absorption formula filter circuit board that lightning protection module circuit board, low frequency reflection-type LC filter circuit board and coaxial-type distribution parameter circuit constitute all is connected with the installation casing through pillar and fixed orifices to utilize the gag lever post to fix under the effect of wind spring and connecting axle, thereby make things convenient for the dismouting circuit board, improved maintenance and equipment speed.

2. The utility model discloses a press down the pressing block, make reset spring compression to with the ejecting spacing hole of stopper, the convenience is dismantled sealed lid, is convenient for maintain the inside of lightning protection filter main part, and the operation is comparatively simple.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of part A of the present invention;

fig. 4 is a partial enlarged view of part B of the present invention.

In the figure: 1. a lightning protection module circuit board; 2. a partition plate; 3. a line pipe; 4. a low-frequency reflective LC filter circuit board; 5. installing a shell; 6. the absorption filter circuit board is composed of a coaxial distributed parameter circuit; 7. a fixing plate; 8. a sealing cover; 9. a lightning protection filter body; 10. a waveguide; 11. a fixing hole; 12. a connecting shaft; 13. a groove; 14. a coil spring; 15. a pillar; 16. a limiting rod; 17. a slot; 18. inserting a block; 19. a limiting block; 20. a top rod; 21. a return spring; 22. a pressing block; 23. and a limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-4, a lightning protection filter applied to a parallel electronic shelter comprises a lightning protection filter main body 9, the lightning protection filter main body 9 comprises a mounting shell 5 arranged at the bottom, the lower surface of the inner cavity of the mounting shell 5 is respectively provided with a lightning protection module circuit board 1, a low-frequency reflection type LC filter circuit board 4 and an absorption type filter circuit board 6 composed of a coaxial distribution parameter circuit, the upper surface of the absorption type filter circuit board 6 composed of the lightning protection module circuit board 1, the low-frequency reflection type LC filter circuit board 4 and the coaxial distribution parameter circuit is respectively provided with four fixing holes 11, a pillar 15 fixedly connected with the mounting shell 5 is arranged inside each fixing hole 11, the upper end of the pillar 15 is provided with a groove 13, the inner side of the groove 13 is rotatably connected with a connecting shaft 12, the outer side of the connecting shaft 12 is respectively sleeved with a limiting, each coil spring 14 is fixedly connected to a stopper rod 16.

Referring to fig. 1, a waveguide 10 is fixedly connected to the bottom of the mounting housing 5, and the mounting housing 5 is made of a material plated with copper and plated with nickel on a steel material, so as to enhance the shielding capability of the mounting housing 5.

Referring to fig. 1, a partition plate 2 is fixedly installed on the inner side of an installation casing 5, the partition plate 2 is located between a lightning protection module circuit board 1 and a low-frequency reflection-type LC filter circuit board 4, and circuit pipelines 3 are symmetrically arranged inside the partition plate 2 to facilitate the arrangement of electric wires.

Please refer to fig. 4, a sealing cover 8 is disposed at the top of the mounting housing 5, the two sides of the sealing cover 8 are both provided with a limiting hole 23, the lower surface of the sealing cover 8 is symmetrically provided with a slot 17 communicated with the limiting hole 23, the two sides of the mounting housing 5 are both fixedly provided with a fixing plate 7, the upper surface of the fixing plate 7 is fixedly provided with an insert block 18 corresponding to the slot 17, one side of the insert block 18 is fixedly provided with a limiting block 19 matched with the limiting hole 23, the sealing cover 8 is convenient to detach, the inside of the lightning protection filter main body 9 is convenient to maintain, and the operation is simple.

Referring to fig. 4, a top rod 20 is disposed inside the limiting hole 23, a pressing block 22 is fixedly connected to one end of the top rod 20, a return spring 21 is fixedly installed between the pressing block 22 and the sealing cover 8, and the return spring 21 is compressed by pressing the pressing block 22, so that the limiting block 19 is ejected out of the limiting hole 23.

Referring to fig. 4, the return spring 21 is located outside the push rod 20, and the push rod 20 and the pressing block 22 are integrally formed, so that the push rod 20 and the pressing block 22 are firmly connected.

The working principle is as follows: when the absorption type filter circuit board 6 composed of the lightning protection module circuit board 1, the low-frequency reflection type LC filter circuit board 4 and the coaxial type distribution parameter circuit is installed, the limiting rod 16 is pulled to be in a vertical state, the supporting column 15 penetrates through the fixing hole 11, and under the action of the elastic restoring force of the coil spring 14, the limiting rod 16 rotates to be in a state vertical to the supporting column 15, so that the absorption type filter circuit board 6 composed of the lightning protection module circuit board 1, the low-frequency reflection type LC filter circuit board 4 and the coaxial type distribution parameter circuit is fixed. When dismantling sealed lid 8, press down the briquetting 22, make reset spring 21 compress to ejecting spacing hole 23 with stopper 19, the inserted block 18 takes place the bending this moment, thereby upwards removes sealed lid 8 and realizes dismantling, inserted block 18 and stopper 19 break away from the inside of slot 17 this moment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Be applied to parallelly connected type electron shelter lightning protection filter, including lightning protection filter main part (9), its characterized in that: the lightning protection filter main body (9) comprises an installation shell (5) arranged at the bottom, the lower surface of an inner cavity of the installation shell (5) is respectively provided with an absorption type filter circuit board (6) composed of a lightning protection module circuit board (1), a low-frequency reflection type LC filter circuit board (4) and a coaxial type distribution parameter circuit, the upper surface of the absorption type filter circuit board (6) composed of the lightning protection module circuit board (1), the low-frequency reflection type LC filter circuit board (4) and the coaxial type distribution parameter circuit is respectively provided with four fixing holes (11), a pillar (15) fixedly connected with the installation shell (5) is arranged inside each fixing hole (11), the upper end of the pillar (15) is provided with a groove (13), the inner side of the groove (13) is rotatably connected with a connecting shaft (12), and the outer side of the connecting shaft (12) is respectively sleeved with a limiting rod (16) and two coil springs (, each coil spring (14) is fixedly connected with a limiting rod (16).

2. The lightning protection filter applied to the parallel electronic shelter as claimed in claim 1, wherein: the bottom of the installation shell (5) is fixedly connected with a waveguide tube (10), and the installation shell (5) is made of a steel material plated with copper and then plated with nickel.

3. The lightning protection filter applied to the parallel electronic shelter as claimed in claim 1, wherein: the inboard fixed mounting of installation casing (5) has baffle (2), baffle (2) are located between lightning protection module circuit board (1) and low frequency reflection type LC filter circuit board (4), just the inside symmetry of baffle (2) is provided with circuit pipeline (3).

4. The lightning protection filter applied to the parallel electronic shelter as claimed in claim 1, wherein: the top of installation casing (5) is provided with sealed lid (8), spacing hole (23) have all been seted up to the both sides of sealed lid (8), just slot (17) with spacing hole (23) intercommunication are seted up to the lower surface symmetry of sealed lid (8), the equal fixed mounting in both sides of installation casing (5) has fixed plate (7), the last fixed surface of fixed plate (7) installs inserted block (18) that correspond with slot (17), one side fixed mounting of inserted block (18) has stopper (19) that matches with spacing hole (23).

5. The lightning protection filter applied to the parallel type electronic shelter according to claim 4, wherein: an ejector rod (20) is arranged in the limiting hole (23), a pressing block (22) is fixedly connected to one end of the ejector rod (20), and a return spring (21) is fixedly mounted between the pressing block (22) and the sealing cover (8).

6. The lightning protection filter applied to the parallel type electronic shelter as claimed in claim 5, wherein: the reset spring (21) is positioned on the outer side of the ejector rod (20), and the ejector rod (20) and the pressing block (22) are of an integrally formed structure.