CN213845463U

CN213845463U - Adjustable device of filter capacitance

Info

Publication number: CN213845463U
Application number: CN202022859997.XU
Authority: CN
Inventors: 李�泳; 张强; 段立杰
Original assignee: Hefei Yunzhiwei Electronic Co ltd
Current assignee: Hefei Yunzhiwei Electronic Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-30
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a filter electric capacity adjustable device, including the wave filter main part, be provided with the wave filter cavity in the wave filter main part, be provided with in the wave filter cavity and drive wave filter cavity bottom electric capacity medium round trip pivoted adjustment mechanism. The utility model has the advantages that: the worm is driven to rotate by the speed reducing motor, the worm is in meshing transmission with the worm wheel, and the rotating shaft connected with the worm is driven to be in running fit in the filter cavity, so that a capacitor medium arranged under the filter main body is driven to rotate, the rotation in a medium groove in the medium cavity arranged at the bottom of the capacitor medium is realized, the relative area between the capacitor medium and the medium groove is changed, and the change of the capacitor is realized.

Description

Adjustable device of filter capacitance

Technical Field

The utility model relates to a wave filter technical field especially relates to an adjustable device of wave filter electric capacity.

Background

The traditional filter mostly adopts a plurality of resonance rods to be matched with a capacitance adjusting rod to change capacitance, and has the problems of large volume and inconvenience in installation and debugging; in addition, the adjusting range is small, and the capacitance is not easy to adjust and change.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a filter electric capacity adjustable device drives the rotation of worm through gear motor, makes worm and turbine meshing transmission to the pivot that drives and be connected with the worm is at the internal normal running fit of filter cavity, thereby drives the electric capacity medium that sets up under being located the filter main part and rotates, and realizes that the electric capacity medium changes with the relative area in medium groove, realizes the change of electric capacity.

The technical scheme of the utility model is realized like this:

the filter capacitor adjustable device comprises a filter main body, wherein a filter cavity is arranged in the filter main body, and an adjusting mechanism for driving a capacitor medium at the bottom of the filter cavity to rotate back and forth is arranged in the filter cavity.

Further, adjustment mechanism is including setting up the pivot in the filter cavity, the direction of height of filter cavity is arranged along the pivot, and the accent department that its top extended to the filter cavity is connected with fan-shaped turbine, fan-shaped turbine and the worm normal running fit that sets up in the filter main part, the worm is through leading needle and gear motor electric connection, the bottom of filter main part is run through to the bottom of pivot and is connected with the electric capacity medium.

Further, the bottom of the filter cavity is provided with an air cavity matched with the rotating shaft, and the top end and the bottom end of the air cavity are provided with bearings in running fit with the rotating shaft.

Furthermore, a medium cavity is arranged at the bottom of the filter main body, and a medium groove matched with the capacitor medium is arranged in the medium cavity.

Further, an arc-shaped concave surface is arranged on the side surface of the medium groove.

The utility model has the advantages that: the worm is driven to rotate by the speed reducing motor, the worm is in meshing transmission with the worm wheel, and the rotating shaft connected with the worm is driven to be in running fit in the filter cavity, so that a capacitor medium arranged under the filter main body is driven to rotate, the rotation in a medium groove in the medium cavity arranged at the bottom of the capacitor medium is realized, the relative area between the capacitor medium and the medium groove is changed, and the change of the capacitor is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a tunable filter capacitor;

FIG. 2 is an exploded view of the adjustment mechanism;

FIG. 3 is a schematic view of a media chamber;

fig. 4 is a top view of the filter body of fig. 1.

In the figure:

1. a filter body; 2. a filter cavity; 3. a capacitive medium; 4. an adjustment mechanism; 5. a rotating shaft; 6. a sector turbine; 7. a worm; 8. a media support bar; 9. an air chamber; 10. a bearing; 11. a dielectric cavity; 12. And a medium groove.

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.

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.

According to the utility model discloses an embodiment provides a filter electric capacity adjustable device.

Referring to fig. 1-4, according to the utility model discloses adjustable device of wave filter electric capacity, including wave filter main part 1, be provided with wave filter cavity 2 in the wave filter main part 1, be provided with in the wave filter cavity 2 and drive wave filter cavity 2 bottom electric capacity medium 3 round trip pivoted adjustment mechanism 4.

Through the technical scheme: through the adjusting mechanism 4 arranged in the filter cavity 2, the capacitor medium 3 arranged below the filter body 1 can rotate, and the change of the capacitor is realized.

Further, adjustment mechanism 4 is including setting up pivot 5 in filter cavity 2, pivot 5 is arranged along filter cavity 2's direction of height, and the accent department that its top extended to filter cavity 2 is connected with fan-shaped turbine 6, fan-shaped turbine 6 and the worm 7 normal running fit that sets up in filter main part 1, worm 7 passes through guide pin and gear motor electric connection, the bottom that filter main part 1 was run through to the bottom of pivot 5 is connected with electric capacity medium 3.

Through the technical scheme: the worm 7 is driven to rotate by the speed reducing motor, so that the worm 7 is meshed with the fan-shaped turbine 6 for transmission, and the rotating shaft 5 connected with the worm 7 is driven to rotate and match in the filter cavity 2, so that the capacitor medium 3 arranged below the filter main body 1 is driven to rotate, and the rotation is realized in the medium groove 12 in the medium cavity 11 arranged at the bottom of the capacitor medium. The bottom end of the rotating shaft 5 penetrates through the bottom of the filter main body 1 and is connected with the capacitor medium 3 through a medium supporting rod 8.

Further, the bottom of the filter cavity 2 is provided with an air cavity 9 matched with the rotating shaft 5, and the top end and the bottom end of the air cavity 9 are provided with bearings 10 in running fit with the rotating shaft 5.

By providing the bearing 10 in the air chamber 9, the cooperation of the bearing 10 with the shaft 5 is facilitated.

Further, a dielectric cavity 11 is arranged at the bottom of the filter body 1, and a dielectric groove 12 matched with the capacitor medium 3 is arranged in the dielectric cavity 11.

Further, the side surface of the medium groove 12 is provided with an arc concave surface.

Through the arc concave surface arranged on the inner wall of the dielectric groove 12, the back-and-forth change of the relative area of the capacitor dielectric 3 and the side wall of the dielectric groove 12 can be changed when the capacitor dielectric 3 rotates, and the adjustment of the capacitor is realized.

Specifically, the worm 7 is driven to rotate by the speed reduction motor, so that the worm 7 is meshed with the fan-shaped turbine 6 for transmission, and the rotating shaft 5 connected with the worm 7 is driven to rotate and match in the filter cavity 2, so that the capacitor medium 3 arranged below the filter main body 1 is driven to rotate, the rotation in the medium groove 12 in the medium cavity 11 arranged at the bottom of the capacitor medium 3 is realized, the relative area between the capacitor medium 3 and the medium groove 12 is changed, and the change of the capacitor is realized.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The adjustable device for the filter capacitor is characterized by comprising a filter body (1), wherein a filter cavity (2) is arranged in the filter body (1), and an adjusting mechanism (4) which drives a capacitor medium (3) at the bottom of the filter cavity (2) to rotate back and forth is arranged in the filter cavity (2).

2. The filter capacitance adjustable device according to claim 1, wherein the adjusting mechanism (4) comprises a rotating shaft (5) disposed in the filter cavity (2), the rotating shaft (5) is disposed along the height direction of the filter cavity (2), a sector turbine (6) is connected to a cavity opening of the filter cavity (2) at the top end of the rotating shaft, the sector turbine (6) is in rotating fit with a worm (7) disposed in the filter body (1), the worm (7) is electrically connected with a speed reduction motor through a guide pin, and the bottom end of the rotating shaft (5) penetrates through the bottom of the filter body (1) and is connected with the capacitance medium (3).

3. A filter capacitance tunable arrangement according to claim 2, wherein the bottom of the filter cavity (2) is provided with an air chamber (9) cooperating with the shaft (5), and the top and bottom ends of the air chamber (9) are provided with bearings (10) rotatably cooperating with the shaft (5).

4. The tunable filter capacitor device according to claim 3, wherein a dielectric cavity (11) is disposed at the bottom of the filter body (1), and a dielectric groove (12) matched with the capacitor medium (3) is disposed in the dielectric cavity (11).

5. A filter capacitance tunable arrangement according to claim 4, wherein the side of the dielectric groove (12) is provided with an arc-shaped concave surface.