CN206727198U - A kind of cavity body filter for possessing particular resonance post - Google Patents
A kind of cavity body filter for possessing particular resonance post Download PDFInfo
- Publication number
- CN206727198U CN206727198U CN201720491295.6U CN201720491295U CN206727198U CN 206727198 U CN206727198 U CN 206727198U CN 201720491295 U CN201720491295 U CN 201720491295U CN 206727198 U CN206727198 U CN 206727198U
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- functional layer
- filter
- resonant column
- cavity
- main structure
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Abstract
The utility model discloses a kind of cavity body filter for possessing particular resonance post, including filter cavity and filter cover board, resonant column is provided with filter cavity body, resonant column is fixed on the bottom of filter cavity by lock-screw, a tuning screw is provided through on filter cover board, interference with resonant column one end of tuning screw, resonant column includes main structure body, the outer surface of main structure body is provided with outer functional layer, the inner surface of main structure body is provided with interior functional layer, and outer functional layer is provided with the confining bed being bonded with main structure body with the butt end of interior functional layer.Resonant column of the present utility model is easy to produce and process, effectively reduces production cost without using electroplating technology.
Description
Technical field
A kind of cavity body filter is the utility model is related to, more particularly to a kind of cavity body filter for possessing particular resonance post,
Belong to the technical field of communications field equipment.
Background technology
With the continuous development of mobile communication technology, the nothing that filtered in communication base station system to signal, screen, suppresses
Source filter is also increasingly taken seriously, the also more and more higher of the requirement to the manufacturing process of wave filter.Used in communication base station system
Passive filter mainly include resonant column cavity, resonant column, cover plate, tuning screw etc., wherein resonant column is most important portion
One of part.By the way that resonant column is fixed on inside resonant cavity, and with cover plate and be deep into inside cavity tuning screw it
Between cooperation to enter the tuning of line frequency and selection.
Resonant column is the property such as most important part, its thermal coefficient of expansion, surface conductivity and corrosion resistance in wave filter
Decide the performance of wave filter.Traditional resonance outer surface of column is using overall coating as functional layer.
And in order to realize overall coating, obtain by turnning and milling or drawing and forming usually by metal steel, then distinguish again
Be surface-treated, after electro-coppering and electrosilvering to reach required electric conductivity.Whole process needs repeatedly to be electroplated, right
The performance impact of coating is big, and needs to spend longer production hour, increases the production cost of resonant column.
Utility model content
The purpose of this utility model is that solve above-mentioned the deficiencies in the prior art, and the overall structure of resonant column functional layer causes to give birth to
Produce cost height, having differences property of coating performance, there is provided a kind of cavity body filter for possessing particular resonance post.
In order to achieve the above object, technical scheme is used by the utility model：
A kind of cavity body filter for possessing particular resonance post,
Including filter cavity and filter cover board, resonant column is provided with the filter cavity body, the resonant column is by locking
Tight screw is fixed on the bottom of the filter cavity, and a tuning screw, the tune are provided through on the filter cover board
One end of humorous screw is interferenceed with the resonant column,
The resonant column includes main structure body, and the outer surface of the main structure body is provided with outer functional layer, the main structure body
Inner surface be provided with interior functional layer, the butt end of the outer functional layer and interior functional layer is provided with what is fitted with the main structure body
Confining bed,
The interior functional layer, outer functional layer and confining bed wrap up the main structure body.
Preferably, the main structure body possesses outer, and the confining bed is located at the periphery of the outer.
Preferably, the main structure body is steel body or aluminium body.
Preferably, the interior functional layer and outer functional layer are copper material functional layer.
Preferably, thickness sum of the thickness of the main structure body not less than interior functional layer and outer functional layer.
Preferably, the surface of the interior functional layer and outer functional layer is respectively provided with process layer.
The beneficial effects of the utility model are mainly reflected in：
1. functional layer being divided into interior functional layer, outer functional layer and confining bed so that resonant column need not use electroplating technology,
It is easy to produce and process, effectively reduces production cost.
2. confining bed is more reliable to the parcel of main structure body with inside and outside functional layer, traditional repeatability plating institute is prevented
The problem of generation.
3. the surface of the inside and outside functional layer of resonant column has process layer so that the covering to main structure body is more comprehensively reliable.
Brief description of the drawings
Fig. 1 is a kind of cross section structure schematic diagram for the cavity body filter for possessing particular resonance post of the utility model.
Fig. 2 is the cross section structure signal of resonant column in a kind of cavity body filter for possessing particular resonance post of the utility model
Figure.
Embodiment
The utility model provides a kind of cavity body filter for possessing particular resonance post.Below in conjunction with accompanying drawing to the utility model
Technical scheme is described in detail, so that it is more readily understood and grasped.
A kind of cavity body filter for possessing particular resonance post, as shown in figure 1, including filter cavity 1 and filter cover board
2, filter cavity 1 is interior to be provided with resonant column 3, and resonant column 3 is fixed on the bottom of filter cavity 1, filter lid by lock-screw 4
A tuning screw 5 is provided through on plate 2, one end of tuning screw 5 is interferenceed with resonant column 3.Pass through tuning screw 5 and resonance
The tuning and selection that coordinate into line frequency between post 3.
Wherein, as shown in Fig. 2 resonant column 3 includes the main structure body 6 of shape for hat, main structure body 6 is steel body or aluminum master
Body, the outer surface of main structure body 6 are provided with outer functional layer 7, and the inner surface of main structure body 6 is provided with interior functional layer 8, interior functional layer with it is outer
Functional layer is the copper material functional layer of brass or red copper, preferably red copper material.The butt end of outer functional layer 7 and interior functional layer 8
Provided with the confining bed 9 to be fitted with main structure body 6, interior functional layer 8, outer functional layer 7 and the package structure main body 6 of confining bed 9.Structure
Main body 6 possesses outer 10, and confining bed 9 is located at the periphery of outer 10.
Specifically, the sheet material for making main structure body 6 first passes around chemical plating or electro-coppering, then carries out drawing and forming, most
Cut shaping eventually, structure sheaf and inside and outside functional layer are by rolling mill practice composite integrated well, by the clad metal sheet after copper facing
Straight forming.The periphery of outer 10 is cut away section, herein without copper plate, caused by the way of chemical deposition interior functional layer with it is outer
Functional layer is effectively combined, interior functional layer 8, outer functional layer 7 and the gapless package structure main body 6 of confining bed 9.
It should be noted that the thickness of main structure body 6 is at least the thickness sum of interior functional layer and outer functional layer, it is at least
Represent the meaning being not less than.
Finally, the surface of interior functional layer 8 and outer functional layer 7 is respectively provided with process layer, and the process layer in copper coatings by entering
Row oil removing, polishing, derusting, pickling, closing and surface protection obtain.
By above description it can be found that a kind of cavity body filter for possessing particular resonance post of the utility model, by function
Layer is divided into interior functional layer, outer functional layer and confining bed so that resonant column is easy to produce and process, had without using electroplating technology
Effect reduces production cost.Confining bed is more reliable to the parcel of main structure body with inside and outside functional layer, has prevented traditional galvanizer
The problem that skill.The surface of the inside and outside functional layer of resonant column has process layer so that the covering to main structure body is more comprehensively
Reliably.
Above the technical solution of the utility model fully describe, it is necessary to explanation is, tool of the present utility model
Body embodiment is simultaneously not limited by the description set out above, and one of ordinary skill in the art exists according to Spirit Essence of the present utility model
All technical schemes that structure, method or function etc. are formed using equivalents or equivalent transformation, all fall within this reality
Within new protection domain.
Claims (6)
- A kind of 1. cavity body filter for possessing particular resonance post, it is characterised in that：Including filter cavity and filter cover board, resonant column is provided with the filter cavity body, the resonant column is by locking screw Nail is fixed on the bottom of the filter cavity, and a tuning screw, the tuning spiral shell are provided through on the filter cover board One end of nail is interferenceed with the resonant column,The resonant column includes the main structure body of shape for hat, and the outer surface of the main structure body is provided with outer functional layer, the structure master The inner surface of body is provided with interior functional layer, and the butt end of the outer functional layer and interior functional layer is provided with to fit with the main structure body Confining bed,The interior functional layer, outer functional layer and confining bed wrap up the main structure body.
- A kind of 2. cavity body filter for possessing particular resonance post according to claim 1, it is characterised in that：The structure master Body possesses outer, and the confining bed is located at the periphery of the outer.
- A kind of 3. cavity body filter for possessing particular resonance post according to claim 1, it is characterised in that：The structure master Body is steel body or aluminium body.
- A kind of 4. cavity body filter for possessing particular resonance post according to claim 1, it is characterised in that：The interior function Layer and outer functional layer are copper material functional layer.
- A kind of 5. cavity body filter for possessing particular resonance post according to claim 1, it is characterised in that：The structure master Thickness sum of the thickness of body not less than interior functional layer and outer functional layer.
- A kind of 6. cavity body filter for possessing particular resonance post according to claim 1, it is characterised in that：The interior function The surface of layer and outer functional layer is respectively provided with process layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720491295.6U CN206727198U (en) | 2017-05-05 | 2017-05-05 | A kind of cavity body filter for possessing particular resonance post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720491295.6U CN206727198U (en) | 2017-05-05 | 2017-05-05 | A kind of cavity body filter for possessing particular resonance post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206727198U true CN206727198U (en) | 2017-12-08 |
Family
ID=60507841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720491295.6U Expired - Fee Related CN206727198U (en) | 2017-05-05 | 2017-05-05 | A kind of cavity body filter for possessing particular resonance post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206727198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285189A (en) * | 2021-04-20 | 2021-08-20 | 武汉德威斯电子技术有限公司 | Totally enclosed wave filter and communication equipment for aerospace |
-
2017
- 2017-05-05 CN CN201720491295.6U patent/CN206727198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285189A (en) * | 2021-04-20 | 2021-08-20 | 武汉德威斯电子技术有限公司 | Totally enclosed wave filter and communication equipment for aerospace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20210505 |
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| CF01 | Termination of patent right due to non-payment of annual fee |