CN111261982A - High-performance dielectric filter - Google Patents

Abstract

The invention relates to the technical field of filters, and discloses a high-performance dielectric filter, which comprises a shell, wherein the left side and the right side of the shell are respectively fixedly connected with a connecting port, the front end of the shell is provided with a front plate, the inner wall of the left end of the front plate is movably connected with the inner wall of the left side of the shell through a hinge, the right lower part of the front plate is provided with a buckle device, a dielectric filter element is arranged in the shell, the connecting ports on the two sides of the shell are connected with an oscilloscope when in use, a button is pressed when the front plate is closed, a spring is extruded, the button moves towards the inside of a cylinder to drive a fixed block to move, a round buckle is upwards folded along a round hole formed in the bottom surface of the cylinder, the front plate is clamped into the front end of the shell at the moment, the round buckle downwards extends after the front plate is clamped into a round groove after the front plate is clamped downwards, the waterproof and dustproof effect is achieved, and the service life of the dielectric filter is prolonged.

Description

High-performance dielectric filter

Technical Field

The invention relates to the technical field of filters, in particular to a high-performance dielectric filter.

Background

The dielectric filter is designed and manufactured by utilizing the characteristics of low loss, high dielectric constant, small frequency temperature coefficient and thermal expansion coefficient, high power bearing and the like of a dielectric ceramic material, and is composed of a plurality of ladder-shaped circuits formed by longitudinally connecting a plurality of long resonators in series or in parallel in a multistage manner. The filter has the characteristics of small insertion loss, good power resistance and narrow bandwidth, and is particularly suitable for the cascade coupling filtering of CT1, CT2, 900MHz, 1.8GHz, 2.4GHz and 5.8GHz, portable telephones, automobile telephones, wireless earphones, wireless microphones, radio stations, cordless telephones, integrated transceiving duplexers and the like. When the dielectric filter is connected with an oscilloscope for use, the dielectric filter is in an exposed state, cannot prevent dust and water, is easy to cause element damage and unnecessary loss, and therefore the dustproof dielectric filter is urgently needed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a high-performance dielectric filter, which solves the problem that the dielectric filter is inconvenient to dust.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high performance dielectric filter, includes the shell, the left and right sides of shell is connector of fixedly connected with respectively, the front end of shell is provided with the front bezel, the left end inner wall of front bezel passes through the left side inner wall swing joint of hinge and shell, the right side below of front bezel is provided with buckle device.

Preferably, buckle device includes button, spring, drum, circle and detains, fixed block one, fixed block two and movable rod, the rear fixed connection spring of button, the rear end and the inside back wall fixed connection of drum of spring, the bottom surface rear end and the fixed block fixed connection of button, the right side fixed surface of fixed block one is connected with a cylinder, the upper end of movable rod is cup jointed to the cylinder, the lower extreme of fixed block two is cup jointed on the cylinder of two right side fixed surface of fixed block connected, the bottom surface fixed connection of fixed block two is in the upper end that the circle was detained, a round hole has been seted up to the bottom surface of drum, the inner wall of round hole and the side surface contact that the circle was detained, a round hole has been seted up to the right side below of front bezel, the inner wall of round hole and the side surface contact of button, the front of drum and the back fixed connection.

Preferably, the bottom surface of the shell is provided with a circular groove, and the size of the groove is matched with that of the circular buckle.

Preferably, the diameter of the opening of the cylinder is matched with the diameter of the button.

(III) advantageous effects

Compared with the prior art, the invention provides a high-performance dielectric filter, which has the following beneficial effects:

1. the dielectric filter comprises a housing, a dielectric filter element is arranged in the housing, connectors on two sides of the housing are connected with an oscilloscope when in use, a front plate is movably connected with the housing through a hinge, a button is pressed when the front plate is closed, a spring is extruded, the button moves towards the inside of a cylinder to drive a first fixed block to move, a movable rod is connected with the first fixed block and also starts to move, the lower end of the movable rod is connected with a second fixed block to drive the second fixed block to move upwards, the second fixed block is fixedly connected with a round buckle, the round buckle is folded upwards along a round hole formed in the bottom surface of the cylinder, the front plate is clamped into the front end of the housing, after the round buckle is loosened, the spring rebounds the button to the original position, namely, the round buckle extends downwards, a round groove is formed in the bottom plate of the housing and is matched with the size and position of the round buckle, the round buckle extends downwards to be, the periphery of the dielectric filter is protected, the waterproof and dustproof effects are achieved, and the service life of the dielectric filter is prolonged.

2. This dielectric filter is convenient for open and close the front bezel through setting up buckle device, reaches the effect of being convenient for change the component, and simple structure is practical, convenient maintenance and change component.

Drawings

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

FIG. 2 is a schematic view of a structure of the fastening device of the present invention;

fig. 3 is an enlarged schematic view of a structure in fig. 2.

In the figure: the device comprises a shell 1, a front plate 2, a buckle device 3, a button 301, a spring 302, a cylinder 303, a round buckle 304, a first fixed block 305, a second fixed block 306, a second movable rod 307 and a 4 connecting port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a high performance dielectric filter comprises a housing 1, wherein a connector 4 is fixedly connected to each of the left and right sides of the housing 1, a front plate 2 is disposed at the front end of the housing 1, the left inner wall of the front plate 2 is movably connected to the left inner wall of the housing 1 through a hinge, a locking device 3 is disposed at the lower right side of the front plate 2, the front plate can be opened and closed conveniently by the locking device, the element replacement is facilitated, the structure is simple and practical, and the maintenance is facilitated, the locking device 3 comprises a button 301, a spring 302, a cylinder 303, a round buckle 304, a first fixed block 305, a second fixed block 306 and a movable rod 307, the spring 302 is fixedly connected to the rear of the button 301, the rear end of the spring 302 is fixedly connected to the inner rear wall of the cylinder 303, the rear end of the bottom surface of the button 301 is fixedly connected to the first fixed block 305, the upper end of a movable rod 307 is sleeved with the cylinder, the lower end of a second fixed block 306 is sleeved on the cylinder fixedly connected with the right side surface of the second fixed block 306, the bottom surface of the second fixed block 306 is fixedly connected with the upper end of a round buckle 304, the bottom surface of the shell 1 is provided with a round groove, the size of the groove is matched with the size of the round buckle 304, the bottom surface of the cylinder 303 is provided with a round hole, the inner wall of the round hole is contacted with the side surface of the round buckle 304, the right lower part of the front plate 2 is provided with a round hole, the inner wall of the round hole is contacted with the side surface of the button 301, the front surface of the cylinder 303 is fixedly connected with the back surface of the front plate 2, the opening diameter of the cylinder 303 is matched with the diameter of the button 301, a medium filter element is arranged in the shell 1, the connecting port 4 at the two sides of the shell 1 is, the spring 302 is extruded, the button 301 moves into the cylinder 303 to drive the first fixing block 305 to move, the movable rod 307 is connected with the first fixing block 305 and also starts to move, the lower end of the movable rod 307 is connected with the second fixing block 306 to drive the second fixing block 306 to move upwards, the second fixing block 306 is fixedly connected with the round buckle 304, the round buckle 304 is upwards folded along a round hole formed in the bottom surface of the cylinder 303, the front plate 2 is clamped into the front end of the shell 1 at the moment, after the hand is loosened, the spring 302 rebounds the button 301 to the original position, namely, the round buckle 304 downwards extends out, a round groove is formed in the bottom plate of the shell 1 and is matched with the round buckle 304 in size and position, the round buckle 304 downwards extends out to be clamped into the round groove after the front plate 2 is clamped into the shell 1, the front plate 2 is fixed, and through the arrangement, the periphery of the dielectric filter is protected, the waterproof and dustproof effects.

The working principle is as follows:

a dielectric filter element is arranged in the shell 1, when in use, the connecting ports 4 at two sides of the shell 1 are connected with the oscilloscope, the front plate 2 is movably connected with the shell 1 through a hinge, the button 301 is pressed when the front plate 2 is closed, the spring 302 is squeezed, the button 301 moves towards the inside of the cylinder 303 to drive the first fixed block 305 to move, the movable rod 307 is connected with the first fixed block 305 and also starts to move, the lower end of the movable rod 307 is connected with the second fixed block 306 to drive the second fixed block 306 to move upwards, the second fixed block 306 is fixedly connected with the circular buckle 304, the circular buckle 304 is folded upwards along a circular hole formed in the bottom surface of the cylinder 303, at the moment, the front plate 2 is clamped into the front end of the shell 1, after the hand is loosened, the spring 302 rebounds the button 301 to the original position, namely, the circular buckle 304 extends downwards, the bottom plate of the shell 1 is provided with a circular groove matched with the size position of the circular buckle 304, after the front plate, the front plate 2 is fixed, and through the arrangement, the periphery of the dielectric filter is protected, so that the waterproof and dustproof effects are achieved, and the service life of the dielectric filter is prolonged.

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 (4)

1. A high performance dielectric filter comprising a housing (1), characterized in that: the left and right sides of shell (1) is a connector (4) of fixedly connected with respectively, the front end of shell (1) is provided with front bezel (2), the left end inner wall of front bezel (2) passes through the left side inner wall swing joint of hinge and shell (1), the right side below of front bezel (2) is provided with buckle device (3).

2. A high performance dielectric filter as recited in claim 1, wherein: the buckling device (3) comprises a button (301), a spring (302), a cylinder (303), a round buckle (304), a first fixed block (305), a second fixed block (306) and a movable rod (307), the spring (302) is fixedly connected with the rear part of the button (301), the rear end of the spring (302) is fixedly connected with the inner rear wall of the cylinder (303), the rear end of the bottom surface of the button (301) is fixedly connected with the first fixed block (305), the right side surface of the first fixed block (305) is fixedly connected with a cylinder, the cylinder is sleeved with the upper end of the movable rod (307), the lower end of the second fixed block (306) is sleeved on the cylinder fixedly connected with the right side surface of the second fixed block (306), the bottom surface of the second fixed block (306) is fixedly connected with the upper end of the round buckle (304), a round hole is formed in the bottom surface of the cylinder (303), the inner wall of the round hole is in contact with the side, a round hole is formed in the lower right of the front plate (2), the inner wall of the round hole is in contact with the side surface of the button (301), and the front surface of the cylinder (303) is fixedly connected with the back surface of the front plate (2).

3. A high performance dielectric filter as recited in claim 1, wherein: the bottom surface of the shell (1) is provided with a circular groove, and the size of the groove is matched with that of the circular buckle (304).

4. A high performance dielectric filter as claimed in claim 2, wherein: the diameter of the opening of the cylinder (303) is matched with the diameter of the button (301).

Images