CN216120681U

CN216120681U - Band-pass filter for broadcasting equipment

Info

Publication number: CN216120681U
Application number: CN202122317376.3U
Authority: CN
Inventors: 杨光
Original assignee: Shenzhen Fuyue Electronics Co ltd
Current assignee: Shenzhen Fuyue Electronics Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-22
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a band-pass filter for broadcasting equipment, which comprises a filter shell, wherein one side of the filter shell is provided with a signal input end, a signal output end and an impurity output end, the bottom in the filter shell is provided with a circuit board, the top surface of the circuit board is provided with a ceramic vibration chip, the circuit board is electrically connected with the ceramic vibration chip, the signal input end, the signal output end and the impurity output end are respectively and electrically connected with the circuit board, the top of the circuit board is provided with a buffer box, the ceramic vibration chip is positioned in the middle in the buffer box, and a plurality of vibration damping springs are vertically arranged between the buffer box and the ceramic vibration chip; install ceramic vibration chip through setting up the circuit board in the filter shell is inside, install ceramic vibration chip in the baffle-box to installation damping spring between baffle-box and ceramic vibration chip is convenient for cushion ceramic vibration chip, when guaranteeing the oscillation signal transmission, protects ceramic vibration chip, is favorable to improving the practicality of device, improves the use prescription of device.

Description

Band-pass filter for broadcasting equipment

Technical Field

The present invention relates to the field of filters, and more particularly, to a band pass filter for broadcasting equipment.

Background

A band-pass filter is a device that allows waves in a particular frequency band to pass while shielding other frequency bands. For example, the RLC tank is an analog band pass filter.

Band pass filter inside has a ceramic chip, screens the wave band, and after filtering the wave band, ceramic chip takes place violent vibration, filters the back output with signal conversion, and current band pass filter ceramic chip direct mount is used, does not possess the safeguard measure, uses the chip to shake the bits of broken glass easily for a long time, leads to the wave filter to damage, loses the filter effect to the signal, for this we propose a band pass filter for broadcasting equipment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the band-pass filter for the broadcasting equipment, which is beneficial to improving the practicability of the device, protecting the ceramic chip and improving the use time efficiency of the device.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a band-pass filter for broadcasting equipment, includes the filter housing, filter housing one side fixed mounting has signal input part, signal output part, impurity output, bottom fixed mounting has the circuit board in the filter housing, ceramic vibration chip is installed to the circuit board top surface, circuit board electric connection ceramic vibration chip, signal input part, signal output part, impurity output part electric connection circuit board respectively, circuit board top fixed mounting has the baffle-box, ceramic vibration chip is located middle part in the baffle-box, perpendicular fixed mounting has a plurality of damping springs between baffle-box and the ceramic vibration chip.

Preferably, the top of the filter shell is provided with a protruding block, and the buffer box is located in the protruding block.

Preferably, the filter shell both sides are the equal fixed mounting of mount pad, mount pad surface middle part all runs through and has seted up the installation screw.

Preferably, the buffer box is made of hard plastic, and a plurality of uniformly distributed heat dissipation holes are formed in the surface of the buffer box in a penetrating mode.

Preferably, the filter shell is made of aluminum, a protective layer is electroplated on the surface of the filter shell, and the protective layer sequentially comprises an insulating layer, an oxidation resistant layer and a wear-resistant layer from inside to outside.

Preferably, the connection parts of the signal input end, the signal output end, the impurity output end and the circuit board are coated with insulating glue.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. the ceramic vibration chip is installed in the buffer box through the circuit board arranged in the filter shell, and the damping spring is installed between the buffer box and the ceramic vibration chip, so that the ceramic vibration chip is conveniently buffered, the ceramic vibration chip is protected while the transmission of an oscillation signal is ensured, the practicability of the device is improved, and the use timeliness of the device is improved;

2. through setting up the mount pad in the wave filter shell both sides, and the installation screw on the mount pad, be convenient for fix the wave filter shell, reduce rocking of wave filter shell, be favorable to improving the stability of device, protect inside ceramic vibration chip, be favorable to improving the use prescription of device.

Drawings

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

FIG. 2 is a schematic diagram of a surface structure of a circuit board according to the present invention;

FIG. 3 is a schematic view of the internal structure of the buffer tank according to the present invention;

FIG. 4 is a schematic structural view of the damping assembly of the present invention;

wherein: 1. a filter housing; 2. a signal input terminal; 3. a signal output terminal; 4. a mounting seat; 5. mounting a screw hole; 6. a circuit board; 7. a buffer tank; 8. a ceramic vibration chip; 9. a damping spring; 10. an impurity output end; 11. and (4) a convex block.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, the utility model provides a band-pass filter for broadcasting equipment, which comprises a filter housing 1, wherein a signal input end 2, a signal output end 3 and an impurity output end 10 are fixedly installed on one side of the filter housing 1, a circuit board 6 is fixedly installed at the bottom in the filter housing 1, a ceramic vibration chip 8 is installed on the top surface of the circuit board 6, the circuit board 6 is electrically connected with the ceramic vibration chip 8, the signal input end 2, the signal output end 3 and the impurity output end 10 are respectively and electrically connected with the circuit board 6, a buffer box 7 is fixedly installed at the top of the circuit board 6, the ceramic vibration chip 8 is located in the middle of the buffer box 7, and a plurality of vibration reduction springs 9 are vertically and fixedly installed between the buffer box 7 and the ceramic vibration chip 8; install ceramic vibration chip 8 through setting up at the inside circuit board 6 of filter housing 1, install ceramic vibration chip 8 in buffer tank 7 to installation damping spring 9 between buffer tank 7 and ceramic vibration chip 8 is convenient for cushion ceramic vibration chip 8, when guaranteeing the oscillation signal transmission, protection ceramic vibration chip 8 is favorable to improving the practicality of device, improves the use prescription of device.

As shown in fig. 1, this embodiment further discloses that a protruding block 11 is disposed at the top of the filter housing 1, and the buffer box 7 is located in the protruding block 11; through setting up the protruding piece 11 at filter housing 1 top, be favorable to improving filter housing 1 inner space, be convenient for dispel the heat to the wave filter, be favorable to improving the practicality of device, improve the use ageing of device.

As shown in fig. 1, the embodiment further discloses that mounting seats 4 are fixedly mounted on both sides of the filter housing 1, and mounting screw holes 5 are formed through the middle parts of the surfaces of the mounting seats 4; through setting up mount pad 4 in filter housing 1 both sides, and the installation screw 5 on mount pad 4, be convenient for fix filter housing 1, reduce rocking of filter housing 1, be favorable to improving the stability of device, protect inside ceramic vibration chip 8, be favorable to improving the use prescription of device.

As shown in fig. 2 and fig. 3, the embodiment further discloses that the buffer box 7 is made of hard plastic, and a plurality of heat dissipation holes are formed in the surface of the buffer box in a penetrating manner and are uniformly distributed; through the louvre of setting on baffle-box 7, be convenient for dispel the heat to ceramic vibration chip 8, protect ceramic vibration chip 8, be favorable to improving the practicality of device.

As shown in fig. 1, the embodiment further discloses that the filter housing 1 is made of aluminum, and the surface of the filter housing is plated with a protective layer, wherein the protective layer sequentially comprises an insulating layer, an oxidation resistant layer and a wear-resistant layer from inside to outside; establish to aluminium through 1 material with the wave filter shell, be favorable to improving the heat-sinking capability of wave filter, improve the practicality of device, through the protective layer that sets up, be favorable to improving the life of wave filter shell 1, be favorable to improving the use prescription of device.

As shown in fig. 2-4, the present embodiment further discloses that the joints of the signal input terminal 2, the signal output terminal 3, the impurity output terminal 10 and the circuit board 6 are all coated with insulating glue; through setting up at signal input part 2, signal output part 3, impurity output part 10 and the coated insulating cement of 6 junctions of circuit board, be favorable to improving the practicality of device, prevent that signal input part 2, signal output part 3, impurity output part 10 lug connection from influencing the normal use of wave filter, be favorable to improving the use ageing of device.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a band-pass filter for broadcasting equipment, includes filter housing (1), filter housing (1) one side fixed mounting has signal input part (2), signal output part (3), impurity output end (10), bottom fixed mounting has circuit board (6) in filter housing (1), ceramic vibration chip (8) are installed to circuit board (6) top surface, circuit board (6) ceramic vibration chip (8) of electric connection, signal input part (2), signal output part (3), impurity output end (10) electric connection circuit board (6) respectively, its characterized in that: circuit board (6) top fixed mounting has baffle-box (7), ceramic vibration chip (8) are located middle part in baffle-box (7), perpendicular fixed mounting has a plurality of damping spring (9) between baffle-box (7) and ceramic vibration chip (8).

2. A band-pass filter for a broadcasting device according to claim 1, characterized in that: the filter is characterized in that a protruding block (11) is arranged at the top of the filter shell (1), and the buffer box (7) is located in the protruding block (11).

3. A band-pass filter for a broadcasting device according to claim 1, characterized in that: equal fixed mounting in wave filter shell (1) both sides has mount pad (4), mount pad (4) surface middle part all runs through and has seted up installation screw (5).

4. A band-pass filter for a broadcasting device according to claim 1, characterized in that: the buffer box (7) is made of hard plastic, and a plurality of heat dissipation holes which are uniformly distributed are formed in the surface of the buffer box in a penetrating mode.

5. A band-pass filter for a broadcasting device according to claim 1, characterized in that: the filter shell (1) is made of aluminum, a protective layer is electroplated on the surface of the filter shell, and the protective layer is an insulating layer, an oxidation resistant layer and a wear-resistant layer from inside to outside in sequence.

6. A band-pass filter for a broadcasting device according to claim 1, characterized in that: and insulating glue is coated at the joints of the signal input end (2), the signal output end (3), the impurity output end (10) and the circuit board (6).