CN204029960U - A kind of filter - Google Patents
A kind of filter Download PDFInfo
- Publication number
- CN204029960U CN204029960U CN201420489130.1U CN201420489130U CN204029960U CN 204029960 U CN204029960 U CN 204029960U CN 201420489130 U CN201420489130 U CN 201420489130U CN 204029960 U CN204029960 U CN 204029960U
- Authority
- CN
- China
- Prior art keywords
- shell fragment
- tuning plug
- tuning
- cover plate
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of filter, wherein, between the bottom of tuning plug and the lower surface of cavity, be provided with hinge shell fragment; Arrange one block of capacitive load plate at the joint face of cavity and cover plate, capacitive load plate offers through hole with the corresponding position of tuning plug, tuning plug is through through hole; Tuning plug upper end is provided with flanging, is positioned at the centre position of cover plate and capacitive load plate; Described tuning plug bottom is silver-plated; Ceramic material is adopted to fill between described flanging and cover plate, as the first capacitor; Ceramic material is adopted to fill between described flanging and capacitive load plate, as the second capacitor; Described hinge shell fragment comprises shell fragment top, shell fragment bottom; Shell fragment top contacts with tuning plug bottom face, and shell fragment bottom and cavity bottom are fixed; Described shell fragment top is connected by bend with one end of shell fragment bottom; Hollow out in the middle of the shell fragment top of described hinge shell fragment, form circular hole, the shell fragment bottom of described hinge shell fragment is screwed in described cavity bottom.
Description
Technical field
The utility model relates to electronic technology field, is specifically related to a kind of filter.
Background technology
In a communications system, filter is a significant element, conventional filter is based on wire chamber filter, along with filter uses the increase in field, we find that filter creates amount of heat in some frequencies of utilization high occasion, because internal component temperature telescopic system is different, cause filtering body generation deformation, cause the disengaging of some crucial tie points, this situation is most commonly in the connection between tuning plug and cavity; Meanwhile, the method for designing that single capacitor traditionally loads, when the volume of fixed filters body, reach required frequency, the volume of tuning plug and the distance of tuning plug upper end and cover plate all must reduce, and will improve machining accuracy and difficulty of processing like this.
Summary of the invention
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide a kind of filter, and it can avoid tuning plug and the cavity break-off that brings of deformation after heated, and reduce difficulty of processing, properties of product are more stable simultaneously.
The utility model solves the technical scheme that its technical problem adopts: a kind of filter, comprises input, output, cavity, tuning plug, cover plate, tuning screw, capacitor and inductor, be provided with hinge shell fragment between the bottom of described tuning plug and the lower surface of cavity; Arrange one block of capacitive load plate at the joint face of described cavity and cover plate, capacitive load plate offers through hole with the corresponding position of tuning plug, and its diameter is greater than the diameter of described tuning plug, and tuning plug is through through hole; Tuning plug upper end is provided with flanging, is positioned at the centre position of cover plate and capacitive load plate; The overlay coating material of described cover plate is silver, nickel or copper; Described tuning plug bottom is silver-plated;
Ceramic material is adopted to fill between described flanging and cover plate, as the first capacitor;
Ceramic material is adopted to fill between described flanging and capacitive load plate, as the second capacitor;
Described hinge shell fragment comprises shell fragment top, shell fragment bottom; Shell fragment top contacts with tuning plug bottom face, and shell fragment bottom and cavity bottom are fixed; Described shell fragment top is connected by bend with one end of shell fragment bottom; Hollow out in the middle of the shell fragment top of described hinge shell fragment, form circular hole, the shell fragment bottom of described hinge shell fragment is screwed in described cavity bottom.
The preferred mounting structure of one as the utility model tuning screw, by tuning fastening nuts on the cover board, the bottom of tuning screw stretches to tuning plug inside to described tuning screw.
A kind of filter described in the utility model, it has the following advantages:
The utility model adds one block of capacitive load plate between cavity and cover plate, and flanging forms two ceramic condensers between cover plate and flanging to capacitive load plate, thus forms laminated body, capacitor, reaches the requirement of low frequency product; Meanwhile, we are provided with hinge shell fragment by between the bottom of tuning plug and cavity bottom, hinge shell fragment has the free travel of certain short transverse, therefore when filter internal is due to after variations in temperature causes mechanical stress and machining tolerance, deformation between tuning plug and cavity can be offset by the self-deformation of hinge shell fragment, make overall structure more reliable and more stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present utility model;
Fig. 2 is the structural representation of the hinge shell fragment 9 in Fig. 1.
Description of reference numerals:
1-cavity, 2-tuning plug, 3-cover plate, 4-capacitive load plate, 5-through hole, 6-flanging, 7-first capacitor, 8-second capacitor, 9-hinge shell fragment, 10-tuning screw, the tuning nut of 11-;
91-shell fragment top, 92-shell fragment bottom, 93-bend, 94-circular hole.
Embodiment
Below in conjunction with drawings and Examples, the utility model embodiment is described:
Fig. 1 and Fig. 2 shows a kind of embodiment of the present utility model, as shown in the figure, a kind of filter of the utility model, comprises input, output, cavity 1, tuning plug 2, cover plate 3, tuning screw 10, capacitor and inductor, be provided with hinge shell fragment 9 between the bottom of described tuning plug 2 and the lower surface of cavity 1; Arrange one block of capacitive load plate 4 at described cavity 1 with the joint face of cover plate 3, capacitive load plate 4 offers through hole 5 with the corresponding position of tuning plug 2, and its diameter is greater than the diameter of described tuning plug 2, and tuning plug 2 is through through hole 5; Tuning plug 2 upper end is provided with flanging 6, is positioned at the centre position of cover plate 3 and capacitive load plate 4; The overlay coating material of described cover plate 3 is silver, nickel or copper; Described tuning plug 2 bottom is silver-plated;
Ceramic material is adopted to fill between described flanging 6 and cover plate 3, as the first capacitor 7;
Ceramic material is adopted to fill between described flanging 6 and capacitive load plate 4, as the second capacitor 8;
Described hinge shell fragment 9 comprises shell fragment top 91, shell fragment bottom 92; Shell fragment top contacts with tuning plug bottom face, and shell fragment bottom and cavity bottom are fixed; Described shell fragment top is connected by bend 93 with one end of shell fragment bottom; Hollow out in the middle of the shell fragment top of described hinge shell fragment, form circular hole 94, the shell fragment bottom of described hinge shell fragment is screwed in described cavity bottom.
Preferably, above-mentioned tuning screw 10 is fastened on cover plate 3 by tuning nut 11, and the bottom of tuning screw 10 stretches to tuning plug inside.
By reference to the accompanying drawings the utility model preferred implementation is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Do not depart from design of the present utility model and scope can make many other and change and remodeling.Should be appreciated that the utility model is not limited to specific execution mode, scope of the present utility model is defined by the following claims.
Claims (2)
1. a filter, comprises input, output, cavity (1), tuning plug (2), cover plate (3), tuning screw (10), capacitor and inductor, is characterized in that: be provided with hinge shell fragment (9) between the bottom of described tuning plug (2) and the lower surface of cavity (1); At described cavity (1) and the joint face of cover plate (3), one piece of capacitive load plate (4) is set, above through hole (5) is offered with the corresponding position of tuning plug (2) at capacitive load plate (4), its diameter is greater than the diameter of described tuning plug (2), and tuning plug (2) is through through hole (5); Tuning plug (2) upper end is provided with flanging (6), is positioned at the centre position of cover plate (3) and capacitive load plate (4); The overlay coating material of described cover plate (3) is silver, nickel or copper; Described tuning plug (2) bottom is silver-plated;
Ceramic material is adopted to fill between described flanging (6) and cover plate (3), as the first capacitor (7);
Ceramic material is adopted to fill between described flanging (6) and capacitive load plate (4), as the second capacitor (8);
Described hinge shell fragment (9) comprises shell fragment top (91), shell fragment bottom (92); Shell fragment top contacts with tuning plug bottom face, and shell fragment bottom and cavity bottom are fixed; Described shell fragment top is connected by bend (93) with one end of shell fragment bottom; Hollow out in the middle of the shell fragment top of described hinge shell fragment, form circular hole (94), the shell fragment bottom of described hinge shell fragment is screwed in described cavity bottom.
2. a kind of filter as claimed in claim 1, is characterized in that: tuning screw (10) is fastened on cover plate (3) by tuning nut (11), and the bottom of tuning screw (10) stretches to tuning plug inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489130.1U CN204029960U (en) | 2014-08-28 | 2014-08-28 | A kind of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489130.1U CN204029960U (en) | 2014-08-28 | 2014-08-28 | A kind of filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029960U true CN204029960U (en) | 2014-12-17 |
Family
ID=52069791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420489130.1U Expired - Fee Related CN204029960U (en) | 2014-08-28 | 2014-08-28 | A kind of filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029960U (en) |
-
2014
- 2014-08-28 CN CN201420489130.1U patent/CN204029960U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |