CN106505282A - A kind of cavity body filter - Google Patents
A kind of cavity body filter Download PDFInfo
- Publication number
- CN106505282A CN106505282A CN201611067630.6A CN201611067630A CN106505282A CN 106505282 A CN106505282 A CN 106505282A CN 201611067630 A CN201611067630 A CN 201611067630A CN 106505282 A CN106505282 A CN 106505282A
- Authority
- CN
- China
- Prior art keywords
- cavity
- cavity body
- body filter
- cover plate
- resonant
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of cavity body filter, which includes that resonant cavity, cover plate, cover plate are arranged on resonant cavity to form the cavity body structure of closing；Resonant cavity is internally provided with isolation bar, and cavity body structure is divided into multiple resonator cavitys by isolation bar；Cover plate is provided with groove structure with the contact surface of resonant cavity；Outer wall and isolation bar of the groove structure corresponding to resonant cavity so that resonant cavity outer wall and isolation bar are engaged in an interference fit with groove structure.Cavity body filter assembling of the present invention is simple.
Description
Technical field
The present invention relates to communication equipment field, more particularly, to a kind of cavity body filter.
Background technology
In communications fields such as radio frequency, microwaves, cavity body filter has a wide range of applications, in cavity body filter resonant cavity and
Cover plate collectively forms the cavity body structure of a closing, and cavity body filter of the prior art is mainly assembled by trip bolt.
The assembling mode increased design difficulty, affect efficiency of assembling；And trip bolt takes certain volume, shadow in cavity body filter
The performance of cavity body filter is rung, and has not met the designer trends of lightweight, miniaturization.
Content of the invention
The present invention provides a kind of cavity body filter, and to solve cavity body filter processed complex in prior art, volume is larger
Problem.
For solving above-mentioned technical problem, the present invention provides a kind of cavity body filter, including resonant cavity, cover plate, the lid
Plate is arranged on the resonant cavity to form the cavity body structure of closing；The resonant cavity is internally provided with isolation bar, described
The cavity body structure is divided into multiple resonator cavitys by isolation bar；The cover plate arranges fluted knot with the contact surface of the resonant cavity
Structure；Outer wall and the isolation bar of the groove structure corresponding to the resonant cavity so that the resonant cavity outer wall and institute
State isolation bar to be engaged with the groove structure in an interference fit.
Wherein, the depth of the groove structure is k times of the cover sheet thickness, 1/3≤k≤1/2.
Wherein, guiding gutter is further provided with the groove structure.
Wherein, soldered tin cream is coated with the guiding gutter, with by being welded to connect the cover plate with the resonance
Cavity.
Wherein, each described resonator cavity is provided with a tuning screw on the cover plate.
Wherein, tuning screw is inserted with the tuning screw.
Wherein, the tuning screw is fixed on the cover plate by clamp nut.
Wherein, the cavity body filter further includes that multiple resonant rods, the resonant rod are fixed on the resonant cavity
On, and each described resonance intracavity arranges a resonant rod.
Wherein, the resonant rod is fixed by screws on the resonant cavity.
Wherein, the resonant cavity is internally provided with an isolation bar, and the cavity body structure is divided into two by the isolation bar
Individual resonator cavity.
Cavity body filter of the present invention includes that resonant cavity, cover plate, cover plate are arranged on resonant cavity to form the chamber of closing
Body structure；Resonant cavity is internally provided with isolation bar, and cavity body structure is divided into multiple resonator cavitys by isolation bar；Cover plate and resonant cavity
Contact surface be provided with groove structure；Outer wall and isolation bar of the groove structure corresponding to resonant cavity so that resonant cavity outer wall
And isolation bar is engaged in an interference fit with groove structure.Cavity filter cover board of the present invention by groove structure realize with
The engaging of resonant cavity, assembles simple and convenient.
Description of the drawings
Fig. 1 is the structural representation of one embodiment of cavity body filter of the present invention；
Fig. 2 is the structural representation of the embodiment cover plate of cavity body filter one shown in Fig. 1；
Fig. 3 is the structural representation after the embodiment of cavity body filter one shown in Fig. 1 increases guiding gutter；
Fig. 4 is the structural representation of the cover plate after increasing guiding gutter in the embodiment of cavity body filter one shown in Fig. 1.
Specific embodiment
For making those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and it is embodied as
Mode is made to cavity body filter and being described in further detail.
Refer to Fig. 1 and Fig. 2, Fig. 1 be one embodiment of cavity body filter of the present invention structural representation, Fig. 2 is Fig. 1 institutes
Show the structural representation of one embodiment cover plate of cavity body filter.Present embodiment cavity body filter 100 includes 11 He of cover plate
Resonant cavity 12.
Cover plate 11 is arranged on resonant cavity 12 cavity body structure for forming closing, that is, the electromagnetic shielding space that closes.Humorous
The cavity 12 that shakes is internally provided with isolation bar 122, and cavity body structure is divided into multiple resonator cavitys 121 by isolation bar 122.In present embodiment
One isolation bar 122 is set inside resonant cavity 12, and cavity body structure is divided into two resonator cavitys 121 by isolation bar 122.
The mode that cover plate 11 is fixed with resonant cavity 12 is specific as follows：It is provided with 12 contact surface of resonant cavity in cover plate 11
Groove structure 111, outer wall 123 and isolation bar 122 of the groove structure 111 corresponding to resonant cavity 12, makes the outer of resonant cavity 12
Wall 123 and isolation bar 122 are engaged in an interference fit with groove structure 111, i.e., cover plate 11 is by way of interference fit
It is fastened on resonant cavity 12.Specifically when mounted, directly cover plate 11 is buckled on resonant cavity 12, by external force holddown plate
11.
The snap fit simple structure that links closely, easy to assembly, and when dismounting processing is needed, be also convenient for easily, will not be right
Resonant cavity 12 or cover plate 11 cause to damage.
Specifically, depth h of groove structure 111 is set to k times of cover sheet thickness H, 1/3≤k≤1/2 is ensureing
While engaging, the cover plate at groove structure 111 is also unlikely to too thin.
For realizing the function of cavity body filter 100, in each resonator cavity 121, a resonant rod 14, resonant rod is additionally provided with
14 are fixed on resonant cavity 12 by screw 15.
Tuning screw 112 can be also set on cover plate 11, to plug tuning screw 131, for tuning cavity body filter 100
Resonant frequency.Each resonator cavity 121 is provided with a tuning screw 112 on cover plate 11 in the present embodiment, adjusts
Tuning screw 131 is inserted with humorous screw 112, and is fixed on cover plate 11 by clamp nut 132.Tuning screws 131 have
Certain length, the therefore design of 11 thickness H of cover plate need the installation for ensureing tuning screws 131, i.e. thickness H can not be too little.
Additionally, guiding gutter 113 may further be provided in 100 concave slot structure 111 of present embodiment cavity body filter, can
It is that the embodiment of cavity body filter one shown in Fig. 1 increases the structural representation after guiding gutter refering to Fig. 3 and Fig. 4, Fig. 3, Fig. 4 is figure
Increase the structural representation of the cover plate after guiding gutter in the embodiment of cavity body filter one shown in 1.
Soldered tin cream is coated in guiding gutter 113, with by being welded to connect cover plate 11 and resonant cavity 12.This enforcement
In mode by the way of Reflow Soldering, 11 resonant cavity body 12 of cover plate is further welded together, is further fastened with reaching
Purpose with sealing.
The cavity body filter of the present invention includes that resonant cavity, cover plate, cover plate are arranged on resonant cavity to form closing
Cavity body structure；Resonant cavity is internally provided with isolation bar, and cavity body structure is divided into multiple resonator cavitys by isolation bar；Cover plate and resonator cavity
The contact surface of body is provided with groove structure；Outer wall and isolation bar of the groove structure corresponding to resonant cavity so that outside resonant cavity
Wall and isolation bar are engaged in an interference fit with groove structure.Cavity filter cover board of the present invention is realized by groove structure
Engaging with resonant cavity, assembling are simple and convenient, and when cover plate is damaged, can be taken out conveniently replacing.The structure
So that the weight of cavity body filter is mitigated, material requested is also less, reduces cost.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (10)
1. a kind of cavity body filter, it is characterised in that the cavity body filter includes that resonant cavity, cover plate, the cover plate are arranged
With the cavity body structure of formation closing on the resonant cavity；The resonant cavity is internally provided with isolation bar, the isolation bar
The cavity body structure is divided into multiple resonator cavitys；The cover plate is provided with groove structure with the contact surface of the resonant cavity；Institute
State outer wall and the isolation bar of the groove structure corresponding to the resonant cavity so that the resonant cavity outer wall and the isolation
Muscle is engaged in an interference fit with the groove structure.
2. cavity body filter according to claim 1, it is characterised in that the depth of the groove structure is that the cover plate is thick
K times of degree, 1/3≤k≤1/2.
3. cavity body filter according to claim 1, it is characterised in that be further provided with water conservancy diversion in the groove structure
Groove.
4. cavity body filter according to claim 1, it is characterised in that be coated with soldered stannum in the guiding gutter
Cream, with by being welded to connect the cover plate with the resonant cavity.
5. cavity body filter according to claim 4, it is characterised in that correspond to each described resonator cavity on the cover plate
It is provided with a tuning screw.
6. cavity body filter according to claim 1, it is characterised in that be inserted with tuning screw on the tuning screw.
7. cavity body filter according to claim 6, it is characterised in that the tuning screw is fixed on by clamp nut
On the cover plate.
8. cavity body filter according to claim 1, it is characterised in that the cavity body filter further includes multiple humorous
Shake bar, and the resonant rod is fixed on the resonant cavity, and each described resonance intracavity arranges a resonant rod.
9. cavity body filter according to claim 8, it is characterised in that the resonant rod is fixed by screws in described humorous
Shake on cavity.
10. cavity body filter according to claim 1, it is characterised in that the resonant cavity be internally provided with one every
From muscle, the cavity body structure is divided into two resonator cavitys by the isolation bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067630.6A CN106505282A (en) | 2016-11-28 | 2016-11-28 | A kind of cavity body filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067630.6A CN106505282A (en) | 2016-11-28 | 2016-11-28 | A kind of cavity body filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106505282A true CN106505282A (en) | 2017-03-15 |
Family
ID=58329024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611067630.6A Pending CN106505282A (en) | 2016-11-28 | 2016-11-28 | A kind of cavity body filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106505282A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732391A (en) * | 2017-10-23 | 2018-02-23 | 成都旭思特科技有限公司 | A kind of lid equipment of cavity body filter |
| WO2022106266A1 (en) * | 2020-11-19 | 2022-05-27 | Commscope Italy S.R.L. | Resonant cavity filters with dielectric resonator assemblies mounted directly on the floor of the filter housing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810585A (en) * | 2015-05-13 | 2015-07-29 | 武汉凡谷电子技术股份有限公司 | Cavity filter |
| CN105514552A (en) * | 2015-11-27 | 2016-04-20 | 广东通宇通讯股份有限公司 | Cover plate welding type cavity filter and manufacturing method thereof |
| CN206480737U (en) * | 2016-11-28 | 2017-09-08 | 广东通宇通讯股份有限公司 | A kind of cavity body filter |
-
2016
- 2016-11-28 CN CN201611067630.6A patent/CN106505282A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810585A (en) * | 2015-05-13 | 2015-07-29 | 武汉凡谷电子技术股份有限公司 | Cavity filter |
| CN105514552A (en) * | 2015-11-27 | 2016-04-20 | 广东通宇通讯股份有限公司 | Cover plate welding type cavity filter and manufacturing method thereof |
| CN206480737U (en) * | 2016-11-28 | 2017-09-08 | 广东通宇通讯股份有限公司 | A kind of cavity body filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732391A (en) * | 2017-10-23 | 2018-02-23 | 成都旭思特科技有限公司 | A kind of lid equipment of cavity body filter |
| WO2022106266A1 (en) * | 2020-11-19 | 2022-05-27 | Commscope Italy S.R.L. | Resonant cavity filters with dielectric resonator assemblies mounted directly on the floor of the filter housing |
| US11682820B2 (en) | 2020-11-19 | 2023-06-20 | Commscope Italy S.R.L. | Resonant cavity filter comprising a dielectric resonator mounted to a hollow conductive body by a threaded dielectric fastener |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |
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| RJ01 | Rejection of invention patent application after publication |