CN201708229U - Cavity filter and filter cavity - Google Patents
Cavity filter and filter cavity Download PDFInfo
- Publication number
- CN201708229U CN201708229U CN2010201442711U CN201020144271U CN201708229U CN 201708229 U CN201708229 U CN 201708229U CN 2010201442711 U CN2010201442711 U CN 2010201442711U CN 201020144271 U CN201020144271 U CN 201020144271U CN 201708229 U CN201708229 U CN 201708229U
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- cavity
- outer conductor
- connector
- connector outer
- filter
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Abstract
The utility model discloses a cavity filter and a filter cavity. In an embodiment of the cavity filter and the filter cavity, an elastic gasket is added between a connector and the cavity, and the connector together with the elastic gasket is locked on the cavity by the aid of screws. When the connector and the cavity have a certain loosening change because of stressing of an outer conductor of the connector or other reasons, the elastic gasket can constantly keep fine elastic contact with the outer conductor of the connector and the cavity to form a signal channel because of the elastic characteristic of the elastic gasket, thereby avoiding influence on radio frequency indexes caused by loosening.
Description
Technical field
The utility model relates to the wave filter technology field, is specifically related to cavity body filter and filter cavity.
Background technology
Cavity body filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.In the base station, filter is used to select signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.
Cavity body filter generally comprises three classes, and the first kind is a coaxial cavity filter, and second class is a dielectric filter, and the 3rd class is a waveguide filter, can signalization input and output (I/O) interface on the cavity body filter.
As shown in Figure 1, be the structural representation of cavity body filter connector part in the prior art, part-structure adopts section to show among the figure.Comprise cavity 110 (only showing the part cavity among the figure) and connector outer conductor 131 and connector inner wire 132 among the figure, described connector outer conductor 131 by screw to the cavity 110.
In research and practice process to prior art, inventor of the present utility model finds, in the prior art, the connector outer conductor by screw to cavity, when being subjected to external force, the connector outer conductor does the time spent, what be easy to produce between connector outer conductor and the cavity is loosening, and then causes loose contact.
The utility model content
The utility model embodiment provides cavity body filter and filter cavity, can improve the reliability that contacts between connector outer conductor and the cavity.
A kind of cavity body filter that the utility model embodiment provides, comprise: cavity and connector, it is characterized in that, also comprise the electrically conductive elastic pad between connector outer conductor and the cavity, when the connector outer conductor by screw lock to cavity the time, described electrically conductive elastic gasket compression power produces elastic deformation, keep and connector outer conductor and described cavity between Elastic Contact.
Preferably, described connector outer conductor comprises ring flange, and described screw passes described ring flange and described electrically conductive elastic sheet is locked to described connector outer conductor on the cavity.
Preferably, also comprise the connector inner wire, described connector outer conductor is the ring bodies of inner hollow, and described connector inner wire passes the through hole on the cavity, extends to the hollow bulb of connector outer conductor.
Preferably, be filled with the non-conductive medium material between described connector outer conductor and the connector inner wire.
The utility model embodiment also provides a kind of filter cavity, comprise cavity and the connector outer conductor that is arranged on the cavity, also comprise: the electrically conductive elastic pad between connector outer conductor and the cavity, when the connector outer conductor by screw lock to cavity the time, described electrically conductive elastic gasket compression power produces elastic deformation, the Elastic Contact between maintenance and connector outer conductor and the described cavity.
Preferably, described connector outer conductor comprises ring flange, and described screw passes described ring flange and described electrically conductive elastic sheet is locked to described connector outer conductor on the cavity.
Between connector and cavity, increase by an elastomeric pad among the utility model embodiment.With screw connector and elastomeric pad together are locked on the cavity.When stressed or other reasons causes connector and cavity that certain loosening variation takes place at the connector outer conductor, because the elastic characteristic of electrically conductive elastic pad, elastomeric pad can remain with connector outer conductor and cavity between favorable elasticity contact, form signalling channel, with the influence of avoiding causing radio-frequency (RF) index because of loosening.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of connector signal interface in the prior art;
Fig. 2 is the structural representation of the connector part of the utility model cavity body filter;
Fig. 3 is the enlarged diagram of Fig. 2 electrically conductive elastic pad part;
Fig. 4 (a) is the structural representation of the electrically conductive elastic pad that provides of the utility model;
Fig. 4 (b) is that Fig. 4 (a) is along A-A directional profile figure.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The cavity body filter that the utility model embodiment provides, the structural representation of its connector part is with reference to figure 2, for technical solutions of the utility model more clearly are described, part-structure has been taked the section demonstration among the figure, comprise: cavity 210 (only showing part among the figure), with the connector outer conductor 231 that is arranged on the described cavity 210, and and connector outer conductor 231 and cavity 210 between electrically conductive elastic pad 232, consult Fig. 3 in the lump, Fig. 3 is the local enlarged diagram of electrically conductive elastic pad part, when connector outer conductor 231 is locked on the cavity 210, the generation elastic deformation that is stressed of described electrically conductive elastic pad 232, keep and connector outer conductor 231 and described cavity 210 between Elastic Contact.
Among Fig. 2, Fig. 3, the shape for the ease of the electrically conductive elastic pad between expression connector outer conductor and the cavity better illustrates the utility model, and the screw among the figure is in unlocked state, and during practical set, screw is locked.
In the present embodiment, the connector outer conductor is locked on the cavity can takes multiple mode, for example:
Mode one, as directly the connector outer conductor being designed to be with externally threaded structure, and cavity is provided with tapped through hole, and then directly the connector outer conductor is fixed on the cavity by helicitic texture, and described electrically conductive elastic pad is set therebetween.
Mode two, described connector outer conductor comprise ring flange 233, concrete structure is with reference to figure 2, the connector outer conductor 231 of flanged dish structure can pass described ring flange 240 and described electrically conductive elastic sheet 232 is locked to described connector outer conductor 231 on the cavity 210 by screw 240 fixedly the time.
Be appreciated that, the cavity body filter that the utility model embodiment provides can also comprise connector inner wire 250, described connector outer conductor 231 is the ring bodies of inner hollow, and described connector inner wire 250 passes the through hole on the cavity 210, extends to the hollow bulb of connector outer conductor 231.Be filled with the non-conductive medium material between described connector outer conductor 231 and the connector inner wire 250.
Between connector and cavity, increase by an elastomeric pad in the present embodiment.With screw connector and elastomeric pad together are locked on the cavity.When stressed or other reasons causes connector and cavity that certain loosening variation takes place at the connector outer conductor, because the elastic characteristic of electrically conductive elastic pad, elastomeric pad can remain with connector outer conductor and cavity between favorable elasticity contact, form signalling channel, with the influence of avoiding causing radio-frequency (RF) index because of loosening.
Continue to consult Fig. 2, the utility model embodiment also provides a kind of filter cavity, comprising:
Cavity 210 (only showing part among the figure) and be arranged at connector outer conductor 231 on the described cavity 210, and the electrically conductive elastic pad 232 between connector outer conductor 231 and the cavity 210, consult Fig. 3 in the lump, it is the local enlarged diagram of Fig. 2 shell fragment part, when connector outer conductor 231 is locked on the cavity 210, the generation elastic deformation that is stressed of described electrically conductive elastic pad 232 is used for keeping and connector outer conductor 231 and described cavity 210 Elastic Contact.
Further consulting Fig. 4 (a), is the structural representation of the electrically conductive elastic pad that provides among the utility model embodiment, the structure of the electrically conductive elastic shell fragment among the figure only be a kind of feasible for example, concrete structure does not constitute restriction of the present utility model.
The electrically conductive elastic pad that the utility model provides comprises: elastic part 410 and standing part 420, described standing part is provided with through hole 430, is used for screw and passes and fix.Consult Fig. 4 (b) in the lump, Fig. 4 (b) is the profile of the conductive elastomer of Fig. 4 (a) along the A-A direction, elastic part 410 can shrink as can be seen, when conductive elastomer was fixed between connector outer conductor and the cavity, described elastic part 410 can keep reliable contact between cavity and the connector outer conductor by elastic deformation.
Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. cavity body filter, comprise: cavity and connector, it is characterized in that, also comprise the electrically conductive elastic pad between connector outer conductor and the cavity, when the connector outer conductor by screw lock to cavity the time, described electrically conductive elastic gasket compression power produces elastic deformation, the Elastic Contact between maintenance and connector outer conductor and the described cavity.
2. cavity body filter as claimed in claim 1 is characterized in that, described connector outer conductor comprises ring flange, and described screw passes described ring flange and described electrically conductive elastic sheet is locked to described connector outer conductor on the cavity.
3. cavity body filter as claimed in claim 1 is characterized in that, also comprises the connector inner wire, and described connector outer conductor is the ring bodies of inner hollow, and described connector inner wire passes the through hole on the cavity, extends to the hollow bulb of connector outer conductor.
4. cavity body filter as claimed in claim 3 is characterized in that, is filled with the non-conductive medium material between described connector outer conductor and the connector inner wire.
5. filter cavity, comprise cavity and the connector outer conductor that is arranged on the cavity, it is characterized in that, also comprise: the electrically conductive elastic pad between connector outer conductor and the cavity, when the connector outer conductor by screw lock to cavity the time, described electrically conductive elastic gasket compression power produces elastic deformation, the Elastic Contact between maintenance and connector outer conductor and the described cavity.
6. filter cavity as claimed in claim 5 is characterized in that, described connector outer conductor comprises ring flange, and described screw passes described ring flange and described electrically conductive elastic sheet is locked to described connector outer conductor on the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201442711U CN201708229U (en) | 2010-03-30 | 2010-03-30 | Cavity filter and filter cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201442711U CN201708229U (en) | 2010-03-30 | 2010-03-30 | Cavity filter and filter cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708229U true CN201708229U (en) | 2011-01-12 |
Family
ID=43445383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201442711U Expired - Fee Related CN201708229U (en) | 2010-03-30 | 2010-03-30 | Cavity filter and filter cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708229U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354601A (en) * | 2011-05-20 | 2012-02-15 | 深圳市大富科技股份有限公司 | Structural capacitor, connector and communication equipment using connector |
| CN102361109A (en) * | 2011-10-11 | 2012-02-22 | 深圳市大富科技股份有限公司 | Connecting assembly, low pass filter and cavity filter |
| WO2012100706A1 (en) * | 2011-01-30 | 2012-08-02 | 深圳市大富科技股份有限公司 | Cavity filter and radio frequency communication equipment |
| CN107004934A (en) * | 2014-12-31 | 2017-08-01 | 深圳市大富科技股份有限公司 | Cavity body filter, connector, duplexer and radio frequency remote equipment |
-
2010
- 2010-03-30 CN CN2010201442711U patent/CN201708229U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100706A1 (en) * | 2011-01-30 | 2012-08-02 | 深圳市大富科技股份有限公司 | Cavity filter and radio frequency communication equipment |
| CN102354601A (en) * | 2011-05-20 | 2012-02-15 | 深圳市大富科技股份有限公司 | Structural capacitor, connector and communication equipment using connector |
| CN102361109A (en) * | 2011-10-11 | 2012-02-22 | 深圳市大富科技股份有限公司 | Connecting assembly, low pass filter and cavity filter |
| CN102361109B (en) * | 2011-10-11 | 2013-12-04 | 深圳市大富科技股份有限公司 | Connecting assembly, low pass filter and cavity filter |
| CN107004934A (en) * | 2014-12-31 | 2017-08-01 | 深圳市大富科技股份有限公司 | Cavity body filter, connector, duplexer and radio frequency remote equipment |
| CN107004934B (en) * | 2014-12-31 | 2019-07-26 | 深圳市大富科技股份有限公司 | Cavity body filter, connector, duplexer and radio frequency remote equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518104, Guangdong, Shenzhen province Baoan District manhole Street oyster road manhole Industrial Company Third Industrial Zone A1, A2, A3 101 and 2 layers, A4 Patentee after: Shenzhen Tat Fook Technology Co., Ltd. Address before: 518108 Bao'an District, Shenzhen City, Guangdong Province, Shiyan Town, love group with the rich industrial area A \ B Dong Patentee before: Shenzhen Tat Fook Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160330 |