CN108023149A - Cavity filter and communication device - Google Patents
Cavity filter and communication device Download PDFInfo
- Publication number
- CN108023149A CN108023149A CN201711071066.XA CN201711071066A CN108023149A CN 108023149 A CN108023149 A CN 108023149A CN 201711071066 A CN201711071066 A CN 201711071066A CN 108023149 A CN108023149 A CN 108023149A
- Authority
- CN
- China
- Prior art keywords
- hole
- cavity
- chamber
- lid
- cavity filter
- 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
Links
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
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention discloses a kind of cavity filter, including cavity and lid, the lid is covered on the cavity, an at least chamber is formed between the lid and the cavity, each chamber is corresponded on the lid extend through and be provided with an at least tuning screw, at least one corresponding each described chamber of the cavity and the lid offers at least pass through aperture respectively, at least one through hole connect the corresponding chamber with it is extraneous with the metal break flour that will drop by the corresponding tuning screw of operation from the corresponding chamber discharge, each through hole is removably provided with closeouts to be removed when needing and discharging metal break flour and block the corresponding through hole after being discharged in metal break flour.Pass through being suctioned out to metal break flour for air blowing of the blowning installation to metal break flour that is placed at the through hole and the dust exhaust apparatus by being arranged at the through hole so that the metal break flour of accumulation is sucked out in the chamber.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of cavity filter and communication device.
Background technology
Cavity filter is widely used in the communications field as a kind of frequency selection device.Cavity filter of the prior art
Ripple device generally includes cavity and lid, and resonator is formed between lid and cavity, and resonatron is provided with resonator, is passed through on lid
Wear and be equipped with tuning screw corresponding with resonatron.However, since tuning screw is using metal material, tuned
Cheng Zhong, easily produces metal break flour and falls in resonatron and resonator, particularly after repeatedly tuning is passed through, resonatron
And the metal break flour in resonator can gradually increase.And the signal that metal break flour can filter needs interferes, and then influence
The performance of cavity filter.
Therefore, it is necessary to provide a kind of cavity filter, the signal that metal break flour filters needs can be avoided to cause to do
Disturb.
The content of the invention
It is an object of the invention to provide a kind of cavity filter, and the signal that metal break flour filters needs can be avoided to make
Into interference.
Another object of the present invention is to provide a kind of communication device, metal break flour can be avoided to the signal that filters of needs
Interfere.
To achieve the above object, the present invention provides a kind of cavity filter, including cavity and lid, the lid to cover
On the cavity, an at least chamber is formed between the lid and the cavity, each chamber is corresponded on the lid
Extend through and be provided with an at least tuning screw, at least one corresponding each described chamber of the cavity and the lid is opened respectively
Equipped with least pass through aperture, at least one through hole connect the corresponding chamber and the external world with will because operation it is corresponding described in
Tuning screw and the metal break flour that drops is discharged from the corresponding chamber, each through hole is removably provided with closure
Part is to be removed when needing and discharging metal break flour and block the corresponding through hole after being discharged in metal break flour.
It is preferred that at least one through hole is used to place blowning installation and/or dust exhaust apparatus.
It is preferred that the quantity of the corresponding through hole of each chamber is at least two, in order to the dress of blowing
Put to coordinate with the dust exhaust apparatus and discharge metal break flour.
It is preferred that corresponding at least two through hole of each chamber is respectively formed at the lid and the cavity
Side wall on.
It is preferred that through hole on the lid is as gas hole, the through hole on the cavity is as suctioning out hole.
It is preferred that the through hole on the cavity is set close to the bottom wall of the cavity.
It is preferred that resonatron corresponding with the tuning screw is provided with the chamber, in neighbouring right on the lid
The position for the tuning screw answered forms the through hole as gas hole, to will fall off the gold in the resonatron
Belong to break flour blowout.
It is preferred that the closeouts is screws and are arranged in the corresponding through hole, to reach preferable plugging effect.
It is preferred that the closeouts are nonmetallic screw, metal is produced to avoid during the closeouts are operated
Break flour.
It is preferred that the closeouts are plastics screw.
It is preferred that the closeouts are including being substantially in the body of " convex " shape and being molded on the outside of the narrow portion of the body
Nonmetallic threaded portion.
It is preferred that the nonmetallic threaded portion is plastic material.
It is preferred that the closeouts include threaded rod and screw terminal, the outer end of the through hole radially expands to form spiral shell
Silk head container is spacing to screw terminal progress at the same time to house the screw terminal.
To realize above-mentioned another object, the present invention provides a kind of communication device, including transceiver circuit part and set
Put the cavity filter as described above in the transceiver circuit part.
It is preferred that the communication device is either simplex device or duplexer or splitter or combiner or tower amplifier.
Compared with prior art, cavity filter of the invention offers each chamber of connection and runs through with extraneous at least one
Hole, closeouts are detachably attached at least pass through aperture, so that the metal break flour formed because operating tuning screw can
To be discharged after corresponding closeouts are removed from corresponding chamber, therefore, metal break flour is effectively prevent to needing to carry out
Interference caused by the signal of filtering so that cavity filter has relatively reliable performance.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the cavity filter of the embodiment of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the cavity filter of the embodiment of the present invention.
Fig. 3 is the diagrammatic cross-section of the cavity filter of the embodiment of the present invention.
Fig. 4 is to embody tuning screw and the structure diagram of resonatron correlation.
Fig. 5 is the schematic diagram of the communication device of the embodiment of the present invention.
Embodiment
For the technology contents that the present invention will be described in detail, construction feature, the effect realized, below in conjunction with embodiment and match somebody with somebody
Attached drawing is closed to be explained in detail.
Please referring to Fig.1 to Fig.4, the present invention provides a kind of cavity filter, which includes cavity 1 and lid 2,
Lid 2 is covered on cavity 1, and an at least chamber 11 is formed between lid 2 and cavity 1, and corresponding to each chamber 11 on lid 2 distinguishes
An at least tuning screw 3 is provided through, at least one corresponding each chamber 11 of cavity 1 and lid 2 offers at least one respectively
Through hole 12,22, at least pass through aperture 12,22 connect corresponding chamber 11 and the external world with will be because of the corresponding tuning screw 3 of operation
The metal break flour F to drop is discharged from corresponding chamber 11, and closeouts 4 are removably provided with per pass through aperture 12,22 to need
It is removed when discharging metal break flour F and corresponding through hole 12,22 is blocked after metal break flour F is discharged.At some
In embodiment, when being not provided with resonatron 14 in chamber 11, when carrying out metal break flour F discharge operations, it will can block
Dust exhaust apparatus (not shown) is directly placed on corresponding through hole 12 after removing and sentenced the metal break flour F in chamber 11 by part 4
Suction out, dust exhaust apparatus is preferably industrial dust collector, but is not limited；Effect is preferably suctioned out in order to reach, is being suctioned out
Before operation, blowning installation (not shown), such as air gun can be first placed at corresponding through hole 12, to blow in corresponding chambers 11
Metal break flour F, and then beneficial to dust exhaust apparatus then by chamber 11 metal break flour F suction out.
It is preferred that for each chamber 11, the quantity of through hole 12,22 is at least two, in order to blowning installation
Coordinate with dust exhaust apparatus and discharge metal break flour F.In certain embodiments, set according to the position of through hole 12,22, at least two
Through hole 12,22 is carrying out gold respectively as special blowning installation lay down location or as special dust exhaust apparatus lay down location
When belonging to break flour F discharge operations, first corresponding closeouts 4 can be removed to carry out air blowing operation, after the air blowing end of job
Other closeouts 4 are removed again, and sucking-off operation is then carried out to metal break flour F by dust exhaust apparatus；Can also side pass through air blowing
Device carries out air blowing operation, while carrying out sucking-off operation by dust exhaust apparatus.In further embodiments, to single through hole 12,
For 22, blowning installation lay down location can also be both used as, also as dust exhaust apparatus lay down location, metal powder is carried out in each chamber 11
When considering F discharge operations to be worth doing, blowning installation can have a variety of fit systems with dust exhaust apparatus.It is worth noting that, no matter through hole 12,
22 are intended only as special blowning installation lay down location or special dust exhaust apparatus lay down location, can also or both be used as dress of blowing
Also dust exhaust apparatus lay down location is used as at placement location, when carrying out metal break flour F discharge operations, can all there are a variety of discharge modes to carry out
Selection, as long as it can achieve the purpose that to suction out metal break flour F out of chamber 11.
In certain embodiments, at least two through holes 12,22 of each chamber 11 are respectively formed on lid 2 and cavity 1,
It is preferred that the through hole 12 on cavity 1 is formed on its side wall 13；Through hole 22 on lid 2 is used as gas hole, on cavity 1
Through hole as suction out hole, it is notable that be not meant to imply that here can only be as gas hole or suction out hole, only
It is to represent its main effect；Effect is more preferably suctioned out in order to reach, the through hole 12 on cavity 1 is set close to the bottom wall of cavity 1
Put.In addition, in certain embodiments, cavity filter is in rectangular-shape, formed between cavity 1 and lid 2 in two rows of distributions
Multiple chambers 11, are opened on the opposite two side 13 of cavity 1 respectively as the multiple through holes 12 for suctioning out hole, but this is not
Limit, for example, the corresponding hole that suctions out of chamber 11 positioned at both ends can also be opened on the side wall 13 at both ends respectively, moreover,
Cavity filter can also be in variously-shaped.
In certain embodiments, resonatron 14 corresponding with tuning screw 3 is provided with chamber 11；In neighbouring on lid 2
The position of corresponding tuning screw 3 forms the through hole 22 as gas hole, to will fall off the metal powder in resonatron 14
Consider F blowouts to be worth doing.
In certain embodiments, closeouts 4 for screw and are arranged in corresponding through hole 12,22, to reach preferable envelope
Stifled effect.It is preferred that closeouts 4 are nonmetallic screw, it is excellent to avoid the generation metal break flour F during closeouts 4 are operated
Selection of land, 4 selected as plastics screw of closeouts.In certain embodiments, closeouts 4 include substantially in " convex " shape body 41 with
And it is molded over the nonmetallic threaded portion 42 in the outside of narrow portion 411 of body 41, it is preferable that nonmetallic threaded portion 42 is plastic material.
Specifically, closeouts 4 are to include threaded rod 43 and screw terminal 44, and the outer end of through hole 12,22 radially expands to form screw terminal
Container 121,221 is to house screw terminal 44 while play spacing effect, and for screw terminal 44, screw terminal herein houses
Not necessarily structure, screw terminal 44 can be located at the outside (as shown in Figure 5) of the side wall of cover board 2 and cavity 1 to groove 121,221.
Referring to Fig. 5, the present invention also provides a kind of communication device 80, specifically, which includes signal transmitting and receiving
The cavity body filter being provided with circuit part 81, wherein transceiver circuit part 81 in foregoing any embodiment.Its
Middle communication radio frequency device 80 can be either simplex device, or can also be duplexer or splitter or combiner or tower top amplification
Device.
Compared with prior art, cavity filter of the invention offers at least consistent of each chamber 11 of connection and the external world
Perforation 12,22, closeouts 4 are detachably attached at least pass through aperture 12,22, so that the shape because of operation tuning screw 3
Into metal break flour F can be discharged after corresponding closeouts 4 are removed from corresponding chamber 11, therefore, effectively prevent
Interference caused by the signal that metal break flour F is filtered needs so that cavity filter has relatively reliable performance.
The above disclosed right model for being only the preferred embodiments of the present invention, the present invention cannot being limited with this certainly
Enclose, therefore the equivalent variations made according to scope of the present invention patent, still fall within the scope that the present invention is covered.
Claims (15)
- A kind of 1. cavity filter, it is characterised in that：Including cavity and lid, the lid is covered on the cavity, described An at least chamber is formed between lid and the cavity, each chamber is corresponded on the lid extends through and be provided with least One tuning screw, at least one corresponding each described chamber of the cavity and the lid offer at least pass through aperture respectively, At least one through hole connects the corresponding chamber and the external world will drop because of the corresponding tuning screw of operation Metal break flour is discharged from the corresponding chamber, and each through hole is removably provided with closeouts to need to discharge gold It is removed when belonging to break flour and the corresponding through hole is blocked after metal break flour is discharged.
- 2. cavity filter as claimed in claim 1, it is characterised in that at least one through hole is used to place blowning installation And/or dust exhaust apparatus.
- 3. cavity filter as claimed in claim 2, it is characterised in that the number of the corresponding through hole of each chamber Measure as at least two, discharge metal break flour in order to which the blowning installation and the dust exhaust apparatus coordinate.
- 4. cavity filter as claimed in claim 3, it is characterised in that each chamber is corresponding at least to be run through described in two Hole is respectively formed on the side wall of the lid and the cavity.
- 5. cavity filter as claimed in claim 4, it is characterised in that the through hole on the lid is as gas hole, institute The through hole on cavity is stated as sucking-off hole.
- 6. cavity filter as claimed in claim 5, it is characterised in that the through hole on the cavity is close to the cavity Bottom wall is set.
- 7. cavity filter as claimed in claim 5, it is characterised in that be provided with the chamber and the tuning screw pair The resonatron answered, forms as described in gas hole on the lid in the position of the neighbouring corresponding tuning screw and runs through Hole.
- 8. cavity filter as claimed in claim 1, it is characterised in that the closeouts is screws and are arranged in corresponding institute State through hole.
- 9. cavity filter as claimed in claim 8, it is characterised in that the closeouts are nonmetallic screw, to avoid Metal break flour is produced during operating the closeouts.
- 10. cavity filter as claimed in claim 9, it is characterised in that the closeouts are plastics screw.
- 11. cavity filter as claimed in claim 8, it is characterised in that the closeouts are included substantially in " convex " shape Body and the nonmetallic threaded portion being molded on the outside of the narrow portion of the body.
- 12. cavity filter as claimed in claim 11, it is characterised in that the nonmetallic threaded portion is plastic material.
- 13. cavity filter as claimed in claim 11, it is characterised in that the closeouts include threaded rod and screw terminal, The outer end of the through hole radially expand to form screw terminal container with house the screw terminal at the same time to the screw terminal into Row is spacing.
- A kind of 14. communication device, it is characterised in that：Including transceiver circuit part and it is arranged on the signal transmitting and receiving circuit portion Point such as claim 1 to 13 any one of them cavity filter.
- 15. the communication device described in claim 14, it is characterised in that the communication device is either simplex device or duplexer or divides Road device or combiner or tower amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071066.XA CN108023149A (en) | 2017-11-03 | 2017-11-03 | Cavity filter and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071066.XA CN108023149A (en) | 2017-11-03 | 2017-11-03 | Cavity filter and communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023149A true CN108023149A (en) | 2018-05-11 |
Family
ID=62080457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711071066.XA Pending CN108023149A (en) | 2017-11-03 | 2017-11-03 | Cavity filter and communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112751149A (en) * | 2020-12-17 | 2021-05-04 | 浙江水利水电学院 | Cavity filter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569978A (en) * | 2011-12-20 | 2012-07-11 | 摩比天线技术（深圳）有限公司 | Dielectric resonator tuning structure and tuning method |
| WO2016076554A1 (en) * | 2014-11-10 | 2016-05-19 | 주식회사 케이엠더블유 | Radio frequency filter and manufacturing method thereof |
| CN106450616A (en) * | 2016-08-12 | 2017-02-22 | 京信通信技术(广州)有限公司 | Radio frequency cavity device and cover plate and design method of cover plate thereof |
| CN206595371U (en) * | 2017-03-02 | 2017-10-27 | 艾迪康科技（苏州）有限公司 | Coaxial cavity filter and its tuning block |
| CN207517834U (en) * | 2017-11-03 | 2018-06-19 | 东莞鸿爱斯通信科技有限公司 | Cavity filter and communication device |
| CN109149035A (en) * | 2017-06-15 | 2019-01-04 | Ace技术株式会社 | The cavity filter with mixing nut bolt is reduced using PIMD |
-
2017
- 2017-11-03 CN CN201711071066.XA patent/CN108023149A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569978A (en) * | 2011-12-20 | 2012-07-11 | 摩比天线技术（深圳）有限公司 | Dielectric resonator tuning structure and tuning method |
| WO2016076554A1 (en) * | 2014-11-10 | 2016-05-19 | 주식회사 케이엠더블유 | Radio frequency filter and manufacturing method thereof |
| CN106450616A (en) * | 2016-08-12 | 2017-02-22 | 京信通信技术(广州)有限公司 | Radio frequency cavity device and cover plate and design method of cover plate thereof |
| CN206595371U (en) * | 2017-03-02 | 2017-10-27 | 艾迪康科技（苏州）有限公司 | Coaxial cavity filter and its tuning block |
| CN109149035A (en) * | 2017-06-15 | 2019-01-04 | Ace技术株式会社 | The cavity filter with mixing nut bolt is reduced using PIMD |
| CN207517834U (en) * | 2017-11-03 | 2018-06-19 | 东莞鸿爱斯通信科技有限公司 | Cavity filter and communication device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112751149A (en) * | 2020-12-17 | 2021-05-04 | 浙江水利水电学院 | Cavity filter |
| CN112751149B (en) * | 2020-12-17 | 2022-02-22 | 浙江水利水电学院 | Cavity filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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: 20180511 |
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| RJ01 | Rejection of invention patent application after publication |