CN220066073U - Waveguide filter - Google Patents

Abstract

The utility model relates to the technical field of waveguide filters, in particular to a waveguide filter, which comprises a shell, wherein a top cover is arranged at the top of the shell, a heat dissipation fan is arranged in a protective shell, a motor is arranged at the left end of the shell, the motor is electrically connected with the heat dissipation fan, a bottom plate is arranged at the bottom of the shell, heat dissipation holes are formed in the bottom plate at equal intervals. The utility model overcomes the defects of the prior art, the protective shell, the radiating fan and the radiating hole are arranged, the radiating fan is embedded in the left lower corner of the shell, a layer of filter screen is arranged in the protective shell to prevent dust from entering the waveguide filter, the radiating fan blows air outwards to take away heat in the waveguide filter, the radiating hole is arranged on the bottom plate, the filter screen is also arranged in the radiating hole to prevent dust from entering the interior, and the radiating fan and the radiating hole can radiate heat in the filter to maintain the same temperature as the environment.

Description

Waveguide filter

Technical Field

The utility model relates to the technical field of waveguide filters, in particular to a waveguide filter.

Background

The waveguide filter is one of transmission line filters, and a common waveguide filter consists of a discontinuity part and a transmission line segment, wherein the discontinuity part and the transmission line segment can be equivalently used as corresponding lumped parameter elements and circuits, the waveguide discontinuity structure provides equivalent reactance, the transmission line segment is equivalent to a resonant cavity and the like, the working mode of the waveguide filter is single cavity or multi-cavity cascade, and the cross coupling mode is various, but the common disadvantage is that the structure size is larger, the miniaturization is difficult to realize, and the manufacturing is complex;

for a known waveguide filter, reference is made to the patent numbers: CN218414992U, comprising a housing, wherein a metal cavity is arranged in the housing, and a ridge waveguide is arranged at the middle part of the inner wall of the bottom of the metal cavity along the length direction of the metal cavity; the utility model improves on the basis of the traditional vanishing mode waveguide, namely the cut-off waveguide, thereby reducing the volume of the filter, and by combining the traditional metal coaxial resonator and the ridge waveguide, the utility model realizes adding cross coupling among a plurality of resonant cavities, and further improves the filtering characteristic on the basis of realizing the broadband target. The internal heat of the reference is inconvenient to radiate, and the internal heat of the waveguide filter cannot radiate in time in the long-term use process, so that the local temperature is increased to influence the use of the whole function; the sealing cover of the reference needs to be fixed by using a large number of bolts, and the sealing cover needs to be loosened by manpower during installation or maintenance, and needs more time to operate, so that the working efficiency is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a waveguide filter, and aims to solve the problem that in the prior art, a heat dissipation device and a sealing cover are not needed to be fixed by bolts.

In order to solve the technical problems, the utility model provides the following technical scheme:

a waveguide filter, comprising:

the top of the shell is provided with a top cover;

the sealing cover is connected with the top cover in an embedded manner;

the protective shell is arranged at the left end of the shell;

the radiating fan is arranged in the protective shell;

the motor is arranged at the left end of the shell and is electrically connected with the heat dissipation fan;

a bottom plate disposed at the bottom of the housing;

the heat dissipation holes are equidistantly arranged on the bottom plate;

the groove is arranged at the top of the shell and is arranged in the top cover;

the electromagnet is arranged in the four sides of the sealing cover;

the bolts are arranged on four sides of the top of the shell and are connected with the shell and the top cover;

and the resonator mounting hole is arranged on the sealing cover.

Preferably, the housing further comprises:

the SMA connector is arranged in the middle of the right side surface of the shell in a penetrating way;

the first resonator is arranged in the shell and penetrates through the sealing cover;

the second resonator is arranged inside the shell and is arranged on the right side of the first resonator;

and the third resonator is arranged inside the shell and is arranged in a triangle with the first resonator and the second resonator.

Preferably, the heat dissipation fan rotates anticlockwise to transfer heat in the shell outwards.

Preferably, the radiating holes are uniform in size, and a filter screen is arranged in each radiating hole.

Preferably, a layer of filter screen is arranged in the protective shell.

Preferably, a rubber layer is arranged at the bottoms of the four sides of the sealing cover, and the four sides of the groove are of a metal structure.

The embodiment of the utility model provides a waveguide filter, which has the following beneficial effects: set up protective housing, heat dissipation fan and louvre, the embedded setting of heat dissipation fan is inside in the lower left corner of shell, and the protective housing is inside to be provided with the one deck filter screen and prevent that the dust from getting into waveguide filter inside, the heat dissipation fan is outside bloies to take away the heat in the waveguide filter, the louvre sets up on the bottom plate, and the louvre also is provided with the filter screen and prevents that the dust from getting into inside, heat dissipation fan and louvre can distribute out the heat of filter inside, maintain the same temperature with the environment, through setting up sealed lid, recess and electro-magnet, sealed lid passes through the recess embedded connection top cap, be provided with the electro-magnet in four limit of sealed lid, and the electro-magnet bottom is provided with the rubber layer and does anti-interference treatment, prevent to influence waveguide filter normal work, can also guarantee sealed leakproofness between the shell, the setting of electro-magnet is more simple and convenient when carrying out dismouting and maintenance to waveguide filter inside.

1. Through setting up protective housing, radiator fan and louvre, the radiator fan is embedded to be set up inside the lower left corner of shell, and the inside one deck filter screen that is provided with of protective housing prevents that the dust from getting into waveguide filter inside, radiator fan and motor are electric connection, the radiator fan is anticlockwise rotatory outwards bloies in order to take away the heat in the waveguide filter, make waveguide filter inside temperature and ambient temperature balanced mutually, prevent that waveguide filter inside temperature is too high and influence its use efficiency, the louvre evenly equidistance sets up on the bottom plate, and the louvre also is provided with the filter screen and prevents that the dust from getting into waveguide filter inner space and influence waveguide filter's normal use, can use the cleaning brush to clean the filter screen when needs clean the filter screen, it is comparatively convenient to operate.

2. Sealing cover, recess and electro-magnet, sealing cover pass through recess embedded connection top cap, be provided with the electro-magnet in four limit of sealing cover, four electro-magnet limit of sealing cover correspond the recess, the recess is metallic structure, the electro-magnet can firmly adsorb in the recess top, and sealing cover bottom is provided with the rubber layer and guarantees the leakproofness between sealing cover and the shell, prevent that dust and water from getting into waveguide filter inside and influencing waveguide filter's use, the electro-magnet can firmly adsorb on the recess under the circumstances of circular telegram, the rubber layer can increase sealing cover and the tightness between the shell, the staff is when needs overhauld waveguide filter internals, just can easily open sealing cover then overhaul inside with the electric disconnection of electro-magnet, the setting of comparing former bolted connection, the connection of electro-magnet can be under the prerequisite that does not influence its connection compactness, more convenient when the staff carries out dismouting and overhauls internals to waveguide filter, can reduce operating personnel's operating time, staff's work efficiency is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a bottom view of the overall structure of the present utility model;

FIG. 3 is a schematic view of the internal part structure of the present utility model;

fig. 4 is a cross-sectional view of the seal cap of the present utility model.

In the figure: 1. a housing; 2. a top cover; 3. sealing cover; 4. a first resonator; 5. a protective shell; 6. a heat dissipation fan; 7. a bottom plate; 8. a heat radiation hole; 9. a groove; 10. an SMA joint; 11. an electromagnet; 12. a motor; 13. a bolt; 14. a resonator mounting hole; 15. a second resonator; 16. and a third resonator.

Description of the embodiments

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1-2, a waveguide filter, including shell 1, protective housing 5, heat dissipation fan 6, bottom plate 7, louvre 8 and motor 12, first resonator 4, second resonator 15 and third resonator 16 all set up inside shell 1, and first resonator 4, second resonator 15 and third resonator 16 become triangle-shaped and arrange the work efficiency of guaranteeing waveguide filter, motor 12 and protective housing 5 all set up in shell 1 left surface and motor 12 and protective housing 5 be adjacent setting, heat dissipation fan 6 sets up inside protective housing 5, heat dissipation fan 6 and motor 12 are electric connection, heat dissipation fan 6 is anticlockwise rotatory with the heat flow of shell 1 to the external world, make waveguide filter inside temperature and surrounding environment balance prevent waveguide filter inside high temperature and influence waveguide filter's use efficiency, the inside metal filter screen that sets up of protective housing 5 can prevent that the dust from getting into inside shell 1 and influence waveguide filter normal use, the setting up between louvre 8 is at the bottom plate 7 surface between the equal size and the louvre 8, the setting of louvre 8 helps the filter better and carries out the filter, and the filter screen can be prevented to get into the filter screen and the same and can prevent that dust from getting into the filter dust and the same and clean when the dust is cleaned to the inside the same and the filter dust can prevent that the dust from getting into the dust and the filter and the dust and the same to the filter to the inside the filter.

As shown in fig. 3-4, including shell 1, top cap 2, sealed lid 3, recess 9 and electro-magnet 11, sealed lid 3 passes through recess 9 embedded connection in top cap 2, top cap 2 is bolted connection with shell 1, sealed lid 3 four limit inside is provided with electro-magnet 11, four limit of recess 9 all are metal structure and can firmly adsorb with electro-magnet 11, and sealed lid 3 bottom four limit bottom all is provided with the rubber layer and increases the tightness between sealed lid 3 and the shell 1, prevent that dust and steam from getting into waveguide filter inside and influencing waveguide filter's normal use, the rubber layer can reduce electro-magnet 11 to the interference of internals equally, electro-magnet 11 adsorbs fixedly with recess 9 under the condition of circular telegram, when need overhauling waveguide filter internals, with electro-magnet 11's electric disconnection, the staff just can easily take out sealed lid 3 to waveguide filter inside component overhauls and maintenance, the original mode of connecting between sealed lid 3 and the shell 1 through the bolt has been changed, the time that the staff opened sealed lid 3 has been reduced, the staff's operation needs time.

Working principle: the utility model relates to a waveguide filter, which comprises a shell 1, a protective shell 5, a heat dissipation fan 6, a bottom plate 7, a heat dissipation hole 8 and a motor 12, wherein a first resonator 4, a second resonator 15 and a third resonator 16 are arranged inside the shell 1, the first resonator 4, the second resonator 15 and the third resonator 16 are arranged in a triangular mode to ensure the working efficiency of the waveguide filter, the motor 12 and the protective shell 5 are arranged on the left side surface of the shell 1, the motor 12 and the protective shell 5 are adjacently arranged, the heat dissipation fan 6 is arranged inside the protective shell 5, the heat dissipation fan 6 is electrically connected with the motor 12, the heat dissipation fan 6 rotates anticlockwise to dissipate heat inside the shell 1 to the outside, the balance between the internal temperature of the waveguide filter and the surrounding environment prevents the internal temperature of the waveguide filter from being too high to influence the use efficiency of the waveguide filter, a metal filter screen is arranged inside the protective shell 5, can prevent dust from entering the inside of the shell 1 to influence the normal use of the waveguide filter, the radiating holes 8 are consistent in size, the radiating holes 8 are equidistantly arranged on the surface of the bottom plate 7, the arrangement of the radiating holes 8 helps the waveguide filter to radiate heat better, the radiating holes 8 are also provided with filter screens to prevent dust from entering the inside of the waveguide filter, the dust can be prevented from entering the inside of the waveguide filter to influence the normal use function of the waveguide filter, a cleaning brush can be used for cleaning the radiating holes 8 when cleaning the radiating holes 8, the dust accumulation can be avoided to influence the radiating efficiency of the radiating holes 8, electromagnets 11 are arranged in four sides of the sealing cover 3, the four sides of the groove 9 are of metal structures and can be firmly fixed with the electrified electromagnets 11, and the four sides at the bottom of the sealing cover 3 are provided with rubber layers to increase the tightness of the connection of the sealing cover 3 and the inner space of the waveguide filter, when the staff needs to install the sealing cover 3, the electromagnet 11 is electrified only after the sealing cover 3 is put down in alignment with the groove, so that the connection tightness of the electromagnet 11 can be ensured, and when the sealing cover 3 needs to be disassembled to maintain the internal components of the waveguide filter, the electromagnet 11 can be easily taken out after being electrically disconnected, so that the time for the staff to disassemble the sealing cover 3 can be reduced, and the working efficiency of the staff is improved.

Claims (6)

1. A waveguide filter, comprising:

the device comprises a shell (1), wherein a top cover (2) is arranged at the top of the shell (1);

a sealing cover (3) which is connected with the top cover (2) in an embedded way;

a protective shell (5) arranged at the left end of the shell (1);

a heat radiation fan (6) which is arranged inside the protective shell (5);

the motor (12) is arranged at the left end of the shell (1), and the motor (12) is electrically connected with the heat dissipation fan (6);

a bottom plate (7) provided at the bottom of the housing (1);

the heat dissipation holes (8) are equidistantly arranged on the bottom plate (7);

the groove (9) is formed in the top of the shell (1), and the groove (9) is formed in the top cover (2);

the electromagnets (11) are arranged in the four sides of the sealing cover (3);

the bolts (13) are arranged on four sides of the top of the shell (1), and the bolts (13) are connected with the shell (1) and the top cover (2);

and a resonator mounting hole (14) provided in the seal cover (3).

2. A waveguide filter according to claim 1, characterized in that the housing (1) further comprises:

the SMA joint (10) is arranged in the middle of the right side surface of the shell (1) in a penetrating way;

a first resonator (4) which is provided inside the housing (1), and in which the first resonator (4) penetrates the seal cover (3);

the second resonator (15) is arranged inside the shell (1), and the second resonator (15) is arranged on the right side of the first resonator (4);

and a third resonator (16) which is provided inside the housing (1) and is arranged in a triangle with the first resonator (4) and the second resonator (15).

3. A waveguide filter according to claim 1, characterized in that the heat dissipating fan (6) is rotated anticlockwise to transfer heat from the housing (1) to the outside.

4. A waveguide filter according to claim 1, characterized in that the heat dissipation holes (8) are of uniform size, and that a filter screen is arranged in the heat dissipation holes (8).

5. A waveguide filter according to claim 1, characterized in that a filter screen is arranged in the protective housing (5).

6. A waveguide filter according to claim 1, characterized in that the sealing cover (3) is provided with a rubber layer at the bottom of the four sides and in that the grooves (9) are of metal construction.