CN105322256B - A kind of cavity filter cover board - Google Patents
A kind of cavity filter cover board Download PDFInfo
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- CN105322256B CN105322256B CN201510785135.8A CN201510785135A CN105322256B CN 105322256 B CN105322256 B CN 105322256B CN 201510785135 A CN201510785135 A CN 201510785135A CN 105322256 B CN105322256 B CN 105322256B
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- cover board
- cavity
- boss
- copper
- threaded hole
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Abstract
A kind of cavity filter cover board, the cover board is used to cover the cavity of cavity body filter, cover board includes cover board body, cover board body uses albronze, the alloy is Copper-Aluminum compound one alloy, i.e. one side is copper, it is on one side aluminium, aluminium faces quasi- cavity when use, the cover board body is equipped with tuning threaded hole, tuning threaded hole be specially extend to cavity direction with the integrally formed boss of cover board body, the middle section of boss is hollow, the inner ring of boss is copper, outer ring is aluminium, threaded hole is equipped with along its axis direction inside boss, the tuned window to connect with threaded hole is additionally provided with inside the boss along its axis direction, the tuned window is relative to threaded hole closer to the cavity of filter, the diameter of tuned window is less than the diameter of filter tuner Self-locking screw, the present invention takes into account cost and tuning performance, save resource.
Description
Technical field
The present invention relates to field of signal processing more particularly to a kind of cavity filter cover boards.
Background technique
Currently, the signal processing of cavity body filter is usually completed by the tuning Self-locking screw on filter cover board, generally
For tuning screw handle the problem of be signal intermodulation the problem of, in particular to two different frequency signals, in a certain system
The signal of the new frequency of superposition and generation.
Current common filter includes the components such as cavity, cover board and tuning Self-locking screw, and filter cover board is now mostly
Tuned window is processed by the way of the punching press pore-forming on plate, on the one hand processes threaded hole defect rate with the mode of punching press
Height, too high manufacturing cost, the tuned window on the other hand stamped out also need additionally mounted upper tuning swivel nut, and tuning swivel nut is using weldering
Connect, press, the modes such as gluing are fixed on tuned window, the installation for tuning swivel nut not only needs cost of labor and processing cost, together
When, this tuning swivel nut in addition installed additional on tuned window is simultaneously unstable, it is easy for generating loosening after a period of time, and
The also simultaneously out-of-flatness of the interface of tuned window and tuning swivel nut, finally influences actual tuning effect.
Summary of the invention
The present invention is intended to provide a kind of cavity filter cover board.
In order to solve the above technical problems, the present invention uses following technical scheme, a kind of cavity filter cover board, the cover board
For covering the cavity of cavity body filter, cover board includes cover board body, and cover board body uses albronze, and the alloy is multiple for copper aluminium
Unify body alloy, i.e., it is on one side aluminium that one side, which is copper, and aluminium faces quasi- cavity when use, and the cover board body is equipped with tuning spiral shell
Pit, tuning threaded hole be specially extend to cavity direction with the integrally formed boss of cover board body, the middle section of boss
Hollow, the inner ring of boss is copper, outer ring is aluminium, is equipped with threaded hole along its axis direction inside boss, along it inside the boss
Axis direction is additionally provided with the tuned window to connect with threaded hole, which, closer to the cavity of filter, adjusts relative to threaded hole
The diameter in humorous hole is less than the diameter of filter tuner Self-locking screw.
Preferably, the cover board body with a thickness of 1-3mm.
Preferably, the height of the boss is 1-20mm.
Preferably, the swivel nut that the boss internal thread holes are formed is applicable in the tuning Self-locking screw of M4-M10 specification.
Preferably, including the copper of 10-20% in the albronze that the cover board body uses, residual components are aluminium.
Preferably, including 10% copper and 90% aluminium in the albronze that the cover board body uses.
Preferably, being additionally provided with cover screw hole on the cover board body.
Relative to traditional filter cover board, the present invention all uses albronze as the material of cover board body, city
Common filter cover board mostly uses the plate of electroplating surface copper or fine copper on field, regardless of be fine copper or electro-coppering at
This is all relatively high, is on the one hand to manufacture cover board using aluminium because the aluminium of accounting majority is relatively cheap using albronze
Material cost can greatly be saved, the quality of another aspect aluminium and copper is softer, and it is easy that processing is got up, and also saves and is processed into
Originally, the considerations of while for electric conductivity good using copper, albronze can also play and fine copper plate while saving cost
The same conductive effect of material because cover board of the invention be also provided with tuning threaded hole i.e. to cavity direction extension with cover board sheet
The hollow boss in the middle section of body by integral forming, the inner ring of boss is copper, outer ring is aluminium, is contacted inside boss with adjusting screw
Part be copper, will not influence actual conductive effect；And the present invention replaces traditional tuned window and tuning spiral shell using boss
The combination of set is that need to only stretch to cover board body because processing boss, can be automatically performed tuning using lathe
The processing of threaded hole, without still further by stamping out tuned window and fixed tuning two sets of processes of swivel nut, which is
It is processed by the material of cover board body, the present invention will not also waste material while saving process, and be integrally formed
Boss it is very firm, will not influence the effect of tuning；In view of the actual demand of present filter tuning, Self-locking screw is tuned
Specification be at present M4-M10, and accordingly, since the albronze extensibility that cover board uses is preferable, the thickness of cover board only needs to control
In 1-3mm, cover board is light and does not influence using effect, further saves material cost, and the height of boss can also be controlled
System is in 1-20mm, it is sufficient to meet the requirement of Self-locking screw；It is additionally provided with inside boss of the present invention along its axis direction and screw thread
The tuned window that hole connects, for the tuned window relative to threaded hole closer to the cavity of filter, the diameter of tuned window is less than filter
The diameter for tuning Self-locking screw, forms capacitor between the inner wall and tuning screw of boss inner ring, so that being able to introduce on cover board flat
The effect of plate capacitor reduces the current density of tuning screw and cover board binding site, reduces and contacts not because of tuning screw with cover board
The inter-modulated signal level of good generation, improves the intermodulation first-pass yield of cavity body filter, and the front end of screw is detached from downwards threaded hole entrance
Tuned window can be squeezed when tuning porose area, and tunes bore dia less than threaded hole, it is contemplated that the material of tuned window is copper, and copper is good
Elastic force can promote tuned window inwardly to squeeze preferably latching Self-locking screw, and filter cover board also has no need to install an elasticity
Sheet metal saves material and artificial.
Detailed description of the invention
Fig. 1 is the schematic diagram that the present invention is embodiment；
Fig. 2 is the schematic diagram of present invention tuning swivel nut.
In figure: 1, cover board body；2, boss；3, threaded hole；4, tuned window；5, cover screw hole.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
A kind of cavity filter cover board according to an embodiment of the present invention is described referring to Fig. 1 to Fig. 2, the cover board is used for
The cavity of cavity body filter is covered, cover board includes cover board body 1, and cover board body uses albronze, which is Copper-Aluminum compound
Integrated alloy, i.e. one side are copper, are on one side aluminium, and aluminium faces quasi- cavity when use, and the cover board body 1 is equipped with tuning screw thread
Hole, tuning threaded hole be specially extend to cavity direction with the integrally formed boss 2 of cover board body, the middle section of boss 2
Hollow, the inner ring of boss 2 is copper, outer ring is aluminium, is equipped with threaded hole 3 along its axis direction inside boss 2, inside the boss 2
The tuned window 4 to connect with threaded hole 3 is additionally provided with along its axis direction, the tuned window 4 is relative to threaded hole 3 closer to filter
Cavity, the diameter of tuned window 4 are less than the diameter of filter tuner Self-locking screw.
Preferably, the cover board body 1 with a thickness of 1-3mm.
Preferably, the height of the boss 2 is 1-20mm.
Preferably, the swivel nut that 2 internal thread holes 3 of boss are formed is applicable in the tuning Self-locking screw of M4-M10 specification.
Preferably, including the copper of 10-20% in the albronze that the cover board body 1 uses, residual components are aluminium.
Preferably, including 10% copper and 90% aluminium in the albronze that the cover board body 1 uses.
Preferably, being additionally provided with cover screw hole 5 on the cover board body 1.
Relative to traditional filter cover board, the present invention all uses albronze as the material of cover board body, city
Common filter cover board mostly uses the plate of electroplating surface copper or fine copper on field, regardless of be fine copper or electro-coppering at
This is all relatively high, is on the one hand to manufacture cover board using aluminium because the aluminium of accounting majority is relatively cheap using albronze
Material cost can greatly be saved, the quality of another aspect aluminium and copper is softer, and it is easy that processing is got up, and also saves and is processed into
Originally, the considerations of while for electric conductivity good using copper, albronze can also play and fine copper plate while saving cost
The same conductive effect of material because cover board of the invention be also provided with tuning threaded hole i.e. to cavity direction extension with cover board sheet
The hollow boss in the middle section of body by integral forming, the inner ring of boss is copper, outer ring is aluminium, is contacted inside boss with adjusting screw
Part be copper, will not influence actual conductive effect；And the present invention replaces traditional tuned window and tuning spiral shell using boss
The combination of set is that need to only stretch to cover board body because processing boss, can be automatically performed tuning using lathe
The processing of threaded hole, without still further by stamping out tuned window and fixed tuning two sets of processes of swivel nut, which is
It is processed by the material of cover board body, the present invention will not also waste material while saving process, and be integrally formed
Boss it is very firm, will not influence the effect of tuning；In view of the actual demand of present filter tuning, Self-locking screw is tuned
Specification be at present M4-M10, and accordingly, since the albronze extensibility that cover board uses is preferable, the thickness of cover board only needs to control
In 1-3mm, cover board is light and does not influence using effect, further saves material cost, and the height of boss can also be controlled
System is in 1-20mm, it is sufficient to meet the requirement of Self-locking screw；It is additionally provided with inside boss of the present invention along its axis direction and screw thread
The tuned window that hole connects, for the tuned window relative to threaded hole closer to the cavity of filter, the diameter of tuned window is less than filter
The diameter for tuning Self-locking screw, forms capacitor between the inner wall and tuning screw of boss inner ring, so that being able to introduce on cover board flat
The effect of plate capacitor reduces the current density of tuning screw and cover board binding site, reduces and contacts not because of tuning screw with cover board
The inter-modulated signal level of good generation, improves the intermodulation first-pass yield of cavity body filter, and the front end of screw is detached from downwards threaded hole entrance
Tuned window can be squeezed when tuning porose area, and tunes bore dia less than threaded hole, it is contemplated that the material of tuned window is copper, and copper is good
Elastic force can promote tuned window inwardly to squeeze preferably latching Self-locking screw, and filter cover board also has no need to install an elasticity
Sheet metal saves material and artificial.
In the description of this specification, the description meaning of reference term " one embodiment ", " example " or " some examples " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or show
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples
It can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (7)
1. a kind of cavity filter cover board, the cover board is used to cover the cavity of cavity body filter, and cover board includes cover board body,
It being characterized in that, cover board body uses albronze, which is Copper-Aluminum compound one alloy, i.e. it is on one side aluminium that one side, which is copper,
Aluminium faces quasi- cavity when use, and the cover board body is equipped with tuning threaded hole, and tuning threaded hole is specially to prolong to cavity direction
Stretch with the integrally formed boss of cover board body, the middle section of boss is hollow, and the inner ring of boss is copper, outer ring is aluminium, boss
Inside is equipped with threaded hole along its axis direction, is additionally provided with the tuning to connect with threaded hole along its axis direction inside the boss
Hole, for the tuned window relative to threaded hole closer to the cavity of filter, the diameter of tuned window is less than filter tuner Self-locking screw
Diameter.
2. cavity filter cover board according to claim 1, which is characterized in that the cover board body with a thickness of 1-3mm.
3. cavity filter cover board according to claim 1, which is characterized in that the height of the boss is 1-20mm.
4. cavity filter cover board according to claim 2 or 3, which is characterized in that the boss internal thread holes are formed
Swivel nut be applicable in the tuning Self-locking screw of M4-M10 specification.
5. cavity filter cover board according to claim 1, which is characterized in that the albronze that the cover board body uses
In include 10-20% copper, residual components are aluminium.
6. cavity filter cover board according to claim 1 or 5, which is characterized in that the copper aluminium that the cover board body uses
It include 10% copper and 90% aluminium in alloy.
7. cavity filter cover board according to claim 1, which is characterized in that be additionally provided with cover board spiral shell on the cover board body
Nail hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785135.8A CN105322256B (en) | 2015-11-17 | 2015-11-17 | A kind of cavity filter cover board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785135.8A CN105322256B (en) | 2015-11-17 | 2015-11-17 | A kind of cavity filter cover board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105322256A CN105322256A (en) | 2016-02-10 |
| CN105322256B true CN105322256B (en) | 2019-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510785135.8A Active CN105322256B (en) | 2015-11-17 | 2015-11-17 | A kind of cavity filter cover board |
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| CN (1) | CN105322256B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020483A (en) * | 2017-04-17 | 2017-08-08 | 东莞市鑫耀鹏五金制品有限公司 | One kind communication cavity cover plate preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037182A (en) * | 1976-09-03 | 1977-07-19 | Hughes Aircraft Company | Microwave tuning device |
| CN204156069U (en) * | 2014-11-24 | 2015-02-11 | 深圳市欣天科技股份有限公司 | A kind of cavity body filter |
| CN204632892U (en) * | 2014-12-31 | 2015-09-09 | 深圳市大富科技股份有限公司 | Cavity body filter, duplexer and radio frequency remote equipment |
| CN205609713U (en) * | 2015-11-17 | 2016-09-28 | 强胜精密机械(苏州)有限公司 | Cavity filter cover plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202177075U (en) * | 2011-07-18 | 2012-03-28 | 杨胜文 | Radiating device of large-power light-emitting diode (LED) array |
| TWI505541B (en) * | 2013-03-29 | 2015-10-21 | Hon Hai Prec Ind Co Ltd | Cavity filter |
-
2015
- 2015-11-17 CN CN201510785135.8A patent/CN105322256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037182A (en) * | 1976-09-03 | 1977-07-19 | Hughes Aircraft Company | Microwave tuning device |
| CN204156069U (en) * | 2014-11-24 | 2015-02-11 | 深圳市欣天科技股份有限公司 | A kind of cavity body filter |
| CN204632892U (en) * | 2014-12-31 | 2015-09-09 | 深圳市大富科技股份有限公司 | Cavity body filter, duplexer and radio frequency remote equipment |
| CN205609713U (en) * | 2015-11-17 | 2016-09-28 | 强胜精密机械(苏州)有限公司 | Cavity filter cover plate |
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| Publication number | Publication date |
|---|---|
| CN105322256A (en) | 2016-02-10 |
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