CN105322258B - A kind of cavity filter cover board - Google Patents
A kind of cavity filter cover board Download PDFInfo
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- CN105322258B CN105322258B CN201510785157.4A CN201510785157A CN105322258B CN 105322258 B CN105322258 B CN 105322258B CN 201510785157 A CN201510785157 A CN 201510785157A CN 105322258 B CN105322258 B CN 105322258B
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- cover board
- cavity
- filter
- tuning
- swivel nut
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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, it is characterized in that, 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 mounting hole, filter cover board further includes the tuning swivel nut matched with the self-locking tuning screw of filter, the swivel nut passes through mounting hole to cavity direction and is fixed on mounting hole, it tunes and is equipped with threaded hole along its axis direction inside swivel nut, the tuned window to connect with threaded hole is additionally provided with along its axis direction inside the tuning swivel nut, 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 cover board that the present invention designs has taken 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
For the plate used for pure copper material or the metal material of electroplating surface copper, cost is too high, in addition in prior art designs cover board with
When tuning screw is effectively combined by the screw thread in the tuning screw hole on cover board, the thread segment thickness in tuning screw hole is almost
Equal to tuning screw hole overall thickness, the current density of tuning screw and cover board binding site is very big, and because of screw thread always spiral
Shape, last half-turn screw thread on the cover board always have end, this last half-turn screw thread cannot combine closely with cover board well, lead
Cause tuning screw and cover board binding site very big to intermodulation effects, so that the intermodulation first-pass yield of cavity body filter is very poor.
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 mounting hole,
Filter cover board further includes the tuning swivel nut matched with the self-locking tuning screw of filter, which passes through peace to cavity direction
Dress hole is simultaneously fixed on mounting hole, is tuned and is equipped with threaded hole along its axis direction inside swivel nut, along it inside the tuning swivel nut
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 0.5-3mm.
Preferably, the height of the tuning swivel nut is 1-20mm.
Preferably, the swivel nut that the tuning swivel nut internal thread holes are formed is applicable in the self-locking spiral shell of tuning of M4-M10 specification
Nail.
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, the tuning swivel nut is made using copper.
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 the tuning swivel nut that the present invention is made using copper is matched with tuning screw, swivel nut and plate
The contact of copper part, makes full use of the electric conductivity of copper；In view of the actual demand of present filter tuning, Self-locking screw is tuned
Specification is M4-M10 at present, and accordingly, since the albronze extensibility that cover board uses is preferable, the thickness of cover board need to only be controlled
0.5-3mm, cover board is light and does not influence using effect, further saves material cost, and the height for tuning swivel nut can also
To control in 1-20mm, it is sufficient to meet the requirement of Self-locking screw；The present invention, which tunes, also to be set inside swivel nut along its axis direction
There is the tuned window to connect with threaded hole, for the tuned window relative to threaded hole closer to the cavity of filter, the diameter of tuned window is small
In the diameter of filter tuner Self-locking screw, tunes and form capacitor between the inner wall and tuning screw of swivel nut inner ring, so that cover board
On be able to introduce capacity plate antenna effect, reduce tuning screw and cover board binding site current density, reduction because of tuning screw
The inter-modulated signal level generated with cover board poor contact, improves the intermodulation first-pass yield of cavity body filter, the front end of screw takes off downwards
Tuned window can be squeezed when entering tuning porose area from threaded hole, and tunes bore dia less than threaded hole, it is contemplated that tunes the material of swivel nut
Material is copper, and the good elastic force of copper can promote tuned window inwardly to squeeze preferably latching Self-locking screw, and filter cover board do not need yet
An additionally mounted elastic 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, swivel nut is tuned；3, threaded hole；4, tuned window；5, cover screw hole；6, mounting 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 1 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 mounting hole 6,
Filter cover board further includes the tuning swivel nut 2 matched with the self-locking tuning screw of filter, which passes through to cavity direction
Mounting hole 6 is simultaneously fixed on mounting hole 6, is tuned and is equipped with threaded hole 3 along its axis direction inside swivel nut 2, in the tuning swivel nut 4
Portion is additionally provided with the tuned window 4 to connect with threaded hole 3 along its axis direction, and the tuned window 4 is relative to threaded hole 3 closer to filter
Cavity, the diameter of tuned window 4 is less than the diameter of filter tuner Self-locking screw.
Preferably, the cover board body 1 with a thickness of 0.5-3mm.
Preferably, the height of the tuning swivel nut 2 is 1-20mm.
Preferably, the swivel nut that tuning 2 internal thread holes of swivel nut are formed is applicable in the self-locking spiral shell of tuning of M4-M10 specification
Nail.
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, the tuning swivel nut 2 is made using copper.
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 the tuning swivel nut that the present invention is made using copper is matched with tuning screw, swivel nut and plate
The contact of copper part, makes full use of the electric conductivity of copper；In view of the actual demand of present filter tuning, Self-locking screw is tuned
Specification is M4-M10 at present, and accordingly, since the albronze extensibility that cover board uses is preferable, the thickness of cover board need to only be controlled
0.5-3mm, cover board is light and does not influence using effect, further saves material cost, and the height for tuning swivel nut can also
To control in 1-20mm, it is sufficient to meet the requirement of Self-locking screw；The present invention, which tunes, also to be set inside swivel nut along its axis direction
There is the tuned window to connect with threaded hole, for the tuned window relative to threaded hole closer to the cavity of filter, the diameter of tuned window is small
In the diameter of filter tuner Self-locking screw, tunes and form capacitor between the inner wall and tuning screw of swivel nut inner ring, so that cover board
On be able to introduce capacity plate antenna effect, reduce tuning screw and cover board binding site current density, reduction because of tuning screw
The inter-modulated signal level generated with cover board poor contact, improves the intermodulation first-pass yield of cavity body filter, the front end of screw takes off downwards
Tuned window can be squeezed when entering tuning porose area from threaded hole, and tunes bore dia less than threaded hole, it is contemplated that tunes the material of swivel nut
Material is copper, and the good elastic force of copper can promote tuned window inwardly to squeeze preferably latching Self-locking screw, and filter cover board do not need yet
An additionally mounted elastic 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 (8)
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 mounting hole, filter cover board further include tuning with filter from
The tuning swivel nut that lock screw matches, the swivel nut pass through mounting hole to cavity direction and are fixed on mounting hole, tune in swivel nut
Portion 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 tuning swivel nut
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 0.5-
3mm。
3. cavity filter cover board according to claim 1, which is characterized in that the height of the tuning swivel nut is 1-
20mm。
4. cavity filter cover board according to claim 2 or 3, which is characterized in that the tuning swivel nut internal thread holes
The swivel nut of formation is 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 the tuning swivel nut is made using copper.
8. 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 |
|---|---|---|---|
| CN201510785157.4A CN105322258B (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 |
|---|---|---|---|
| CN201510785157.4A CN105322258B (en) | 2015-11-17 | 2015-11-17 | A kind of cavity filter cover board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105322258A CN105322258A (en) | 2016-02-10 |
| CN105322258B true CN105322258B (en) | 2019-01-22 |
Family
ID=55249183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510785157.4A Active CN105322258B (en) | 2015-11-17 | 2015-11-17 | A kind of cavity filter cover board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105322258B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647975A2 (en) * | 1993-10-12 | 1995-04-12 | Matsushita Electric Industrial Co., Ltd. | Dielectric resonator, dielectric notch filter and dielectric filter |
| CN202177075U (en) * | 2011-07-18 | 2012-03-28 | 杨胜文 | Radiating device of large-power light-emitting diode (LED) array |
| 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 |
| CN205609715U (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 |
|---|---|---|---|---|
| TWI505541B (en) * | 2013-03-29 | 2015-10-21 | Hon Hai Prec Ind Co Ltd | Cavity 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 |
-
2015
- 2015-11-17 CN CN201510785157.4A patent/CN105322258B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647975A2 (en) * | 1993-10-12 | 1995-04-12 | Matsushita Electric Industrial Co., Ltd. | Dielectric resonator, dielectric notch filter and dielectric filter |
| CN202177075U (en) * | 2011-07-18 | 2012-03-28 | 杨胜文 | Radiating device of large-power light-emitting diode (LED) array |
| 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 |
| CN205609715U (en) * | 2015-11-17 | 2016-09-28 | 强胜精密机械(苏州)有限公司 | Cavity filter cover plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105322258A (en) | 2016-02-10 |
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