CN202004122U - Cavity filter, communication equipment and radio frequency communication device - Google Patents
Cavity filter, communication equipment and radio frequency communication device Download PDFInfo
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- CN202004122U CN202004122U CN2010206816561U CN201020681656U CN202004122U CN 202004122 U CN202004122 U CN 202004122U CN 2010206816561 U CN2010206816561 U CN 2010206816561U CN 201020681656 U CN201020681656 U CN 201020681656U CN 202004122 U CN202004122 U CN 202004122U
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- cavity
- resonant rod
- cover plate
- body filter
- cavity body
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Abstract
The embodiment of the utility model provides a cavity filter, which comprises a cavity, a cover plate and a resonance rod, wherein the cavity is sealed by the cover plate, and the resonance rod is arranged on the bottom of the cavity or the cover plate by serving as a mold insert. The embodiment of the utility model also provides communication equipment, which comprises the cavity filter, wherein the cavity filter is arranged on a signal transceiver circuit part of the communication equipment for selecting a signal. When the cavity filter provided by the embodiment of the utility model is produced and manufactured, the resonance rod is integrally arranged on the bottom of the cavity or the cover plate without installing bolts, so that the cavity filter is efficient and has low cost, and time is saved; and the resonance rod is in good contact with the cavity or the cover plate so as to greatly optimize the communication index of the cavity filter. The utility model also provides a radio frequency communication device.
Description
[technical field]
The utility model relates to communications field wave filter technology, particularly a kind of cavity body filter, frequency communication devices and communication equipment.
[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.
With regard to coaxial cavity filter (being called for short cavity body filter down), please in the lump referring to Fig. 1 and Fig. 2, wherein, Fig. 1 has shown the schematic cross-section of a kind of cavity body filter in the prior art and cover plate thereof, and Fig. 2 shown a kind of partial structurtes schematic diagram of cavity body filter product in the prior art.
As shown in Figure 1, this cavity body filter 10 comprises cavity 11, cover plate 12 and resonant rod 13.Cover plate 12 capping cavitys 11 form resonant cavity 110.The bottom of cavity 11 is provided with installing hole 111, and resonant rod 13 is assemblied in cavity 11 bottoms by screw 112.As shown in Figure 2, the cavity body filter product has a plurality of structures shown in Figure 1, and each resonant rod all is assemblied in cavity bottom by the screw fastening means.
In research and practice process to prior art, inventor of the present utility model finds, in the prior art, owing to adopt screw resonant rod is installed, its complex procedures, assembling is consuming time and cost is higher, if a certain screw loosening or come off and be easy to have influence on the signal processing of whole cavity body filter.
Therefore, be necessary the annexation of resonant rod and cavity is optimized improvement.
[summary of the invention]
The utility model embodiment solves the problems of the technologies described above the technical scheme of being taked and provides a kind of cavity body filter, this cavity body filter comprises cavity, cover plate and resonant rod, wherein, cover plate capping cavity, resonant rod is arranged on cavity bottom or the cover plate as mold insert.
The utility model embodiment also provides a kind of communication equipment, and this communication equipment comprises cavity body filter mentioned above, and cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
The utility model embodiment also provides a kind of frequency communication devices, this frequency communication devices comprises cavity, cover plate and resonant rod, wherein, and cover plate capping cavity, resonant rod is arranged on cavity bottom or the cover plate as mold insert, and described resonant rod and described cavity are made by same material.
Compared with prior art, the cavity body filter that the utility model embodiment provides is arranged on the resonant rod integral type on cavity bottom or the cover plate when manufacturing, need not mounting screw, high efficiency and time conservation, with low cost, resonant rod is good with contacting of cavity or cover plate, has optimized the singal reporting code of cavity body filter greatly.
[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, wherein:
Fig. 1 has shown a kind of schematic cross-section of cavity body filter in the prior art;
Fig. 2 has shown a kind of partial structurtes schematic diagram of cavity body filter product in the prior art;
Fig. 3 has shown the schematic cross-section according to the cavity body filter of the utility model first embodiment;
Fig. 4 has shown the schematic cross-section according to the cavity body filter of the utility model second embodiment;
Fig. 5 has shown the schematic cross-section according to the cavity body filter of the utility model the 3rd embodiment;
Fig. 6 has shown the schematic cross-section according to the cavity body filter of the utility model the 4th embodiment;
Fig. 7 has shown the schematic partial cross-sectional view according to the cavity body filter of the utility model the 5th embodiment;
Fig. 8 has shown the partial structurtes schematic diagram according to the cavity body filter product of the utility model the 5th embodiment;
Fig. 9 has shown the schematic cross-section according to the cavity body filter of the utility model the 6th embodiment;
Figure 10 has shown the schematic cross-section according to the cavity body filter of the utility model the 7th embodiment; And
Figure 11 has shown the partial structurtes schematic diagram according to the cavity body filter product of the utility model the 7th embodiment.
[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 a part of embodiment of the present utility model, 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 utility model embodiment discloses a kind of cavity body filter, comprises cavity, cover plate and resonant rod, wherein, cover plate capping cavity, resonant rod is arranged on cavity bottom or the cover plate as mold insert.
The utility model embodiment also discloses a kind of communication equipment, and this communication equipment comprises cavity body filter mentioned above, and cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
The utility model embodiment also provides a kind of frequency communication devices, this frequency communication devices comprises cavity, cover plate and resonant rod, wherein, and cover plate capping cavity, resonant rod is arranged on cavity bottom or the cover plate as mold insert, and described resonant rod and described cavity are made by same material.
Certainly, the cavity body filter of the utility model embodiment also comprises various other conventional components or structure, herein, present embodiment is only to being described with present embodiment inventive point relevant portion, concrete parts or structure, can not constitute restriction of the present utility model with reference to the suitable increase and decrease of existing conventional implementation.
Embodiment one
A kind of cavity body filter 20, as shown in Figure 3, this cavity body filter 20 comprises cavity 21, cover plate 22 and resonant rod 23.Cover plate 22 capping cavitys 21 form resonant cavity 210.Resonant rod 23 is arranged in the resonant cavity 210, and resonant rod 23 is positioned at the bottom of cavity 21 and is integrative-structure with cavity 21.
Particularly, resonant rod 23 is cylindrical and have recess 230, and the top of resonant rod 23 has opening, is used to be provided with adjusting rod (scheming not shown).This recess 230 is cylindrical, and its bottom surface is higher than the inner chamber bottom surface of cavity 21, so that electroplate liquid is easy to flow out when the inwall of recess 230 is electroplated.
In the present embodiment, the sidewall of this resonant rod 23 and its bottom are for seamlessly transitting, and the position that this resonant rod 23 is connected with these cavity 21 bottoms is for seamlessly transitting.
The resonant rod of present embodiment and cavity one die cast, it is fastening to need not screw, makes efficient and conveniently, and resonant rod and cavity adopt same material die casting, and the signal transmission is good.
Embodiment two
A kind of cavity body filter 30, as shown in Figure 4, this cavity body filter 30 comprises cavity 31, cover plate 32 and resonant rod 33.Cover plate 32 capping cavitys 31 form resonant cavity 310.Resonant rod 33 is arranged in the resonant cavity 310 as mold insert, and resonant rod 33 is positioned at the bottom of cavity 31 and is integrative-structure with cavity 31.
In the present embodiment, the bottom of resonant rod 33 is embedded in the cavity 31, and promptly resonant rod 33 is die cast as one with mold insert module and cavity 31.
Particularly, this resonant rod 33 is shaped to mold insert via punching press, die casting or machining mode earlier, utilizes this resonant rod 33 to come die casting cavity 31 as auxiliary mold insert again, makes resonant rod 33 and cavity 31 with the mosaic mode structure that closely links into an integrated entity.
In the present embodiment, resonant rod 33 has recess 330, and resonant rod 33 is all cylindrical with recess 330.The bottom surface of recess 330 is higher than the inner chamber bottom surface of cavity 31, so that electroplate liquid is easy to flow out when the inwall of recess 330 is electroplated.The top of resonant rod 33 has opening, is used to be provided with adjusting rod (scheming not shown).Cavity 31 bottoms have depressed part (scheming not shown), and this depressed part is cylindrical, and depressed part has first flange 311.The bottom of resonant rod 33 has the lug boss 331 with first flange, 311 couplings.So, resonant rod 33 is embedded in the bottom of resonant cavity 310 by lug boss 331 and cooperating of first flange 311.
In the present embodiment, the bottom of resonant rod is embedded in the cavity, and it links closely, loosening, the obscission of screw assembling can not occur utilizing, and resonant rod and cavity adopt same material die casting, and the signal transmission is good.
Embodiment three
A kind of cavity body filter 40, as shown in Figure 5, this cavity body filter 40 comprises cavity 41, cover plate 42 and resonant rod 43, in the present embodiment, identical among cavity body filter 40 its general configuration and the embodiment two, its distinctive points is that the bottom of resonant rod 43 is embedded in the bottom of cavity 41, and resonant rod 43 run through cavity 41 bottoms and with the concordant setting in cavity 41 bottom surfaces.
Particularly, the depressed part of cavity body filter 40 also has second flange 412, resonant rod 43 also has the groove 432 with second flange, 412 couplings, so, resonant rod 43 cooperating and groove 432 and the bottom that is embedded in cavity 41 cooperating of second flange 412 by lug boss 431 and first flange 411.
In the present embodiment, the bottom of resonant rod is embedded in the cavity, and it links closely, loosening, the obscission of screw assembling can not occur utilizing, and resonant rod and cavity adopt same material die casting, and the signal transmission is good.
Embodiment four
A kind of cavity body filter 50, as shown in Figure 6, this cavity body filter 50 comprises cavity 51, cover plate 52 and resonant rod 53.Cover plate 52 capping cavitys 51 form resonant cavity 510.Resonant rod 53 is arranged in the resonant cavity 510 as mold insert, and resonant rod 53 is positioned at the bottom of cavity 51 and is integrative-structure with cavity 51.
In a preferred embodiment, the thickness of resonant rod 53 is less than the thickness of cover plate 52 and cavity 51, and resonant rod 53 can be by the sheet stamping moulding, and this resonant rod 53 has recess 530, and resonant rod 53 is all cylindrical with recess 530.The top closure of resonant rod 53.The sidewall of resonant rod 53 and its bottom is for seamlessly transitting 531, and the position that resonant rod 53 is connected with resonant cavity 510 is also for seamlessly transitting 532.Resonant rod 53 has lug boss 533, and lug boss 533 and resonant rod 53 are for seamlessly transitting 532.The bottom of resonant cavity 510 has depressed part (scheming not shown), this depressed part has first flange 511 and second flange 512, form the groove (scheming not shown) that holds lug boss 533 between first flange 511 and second flange 512, the position that first flange 511 is connected with resonant rod 53 becomes to seamlessly transit 513 configuration, and resonant rod 53 is embedded in the bottom of resonant cavity 510 by lug boss 533 and first flange 511 and cooperating of second flange 512.
In the present embodiment, resonant rod is embedded in the cavity, and it links closely, loosening, the obscission of screw assembling can not occur utilizing, and resonant rod and cavity adopt same material die casting, and the signal transmission is good.
Embodiment five
A kind of cavity body filter 60, the fit of its cover plate 62 and resonant rod 63 as shown in Figure 7, this resonant rod 63 is positioned on the cover plate 62 and with cover plate 62 and is integrative-structure.
In the present embodiment, the bottom of resonant rod 63 is embedded in the cover plate 62, and promptly resonant rod 63 is die cast as one with mold insert module and cover plate 62, this resonant rod 63 and this cover plate 62 by of the same race or not same material make.
Particularly, this resonant rod 63 is shaped to mold insert via punching press, die casting or machining mode earlier, utilizes this resonant rod 63 to come die casting cover plate 62 as auxiliary mold insert again, makes resonant rod 63 and cover plate 62 with the mosaic mode structure that closely links into an integrated entity.
The cavity body filter 60 of present embodiment is roughly the same with embodiment two, and it only is resonant rod 63 is arranged on the cover plate 62 as mold insert without part, and therefore, identical structure does not repeat them here.
Please in the lump referring to Fig. 8, Fig. 8 has shown the partial structurtes schematic diagram of the cavity body filter product of the utility model the 5th embodiment, and as shown in the figure, a plurality of resonant rods are embedded on the cover plate, and it links closely, and it is fastening to need not screw.
Embodiment six
A kind of cavity body filter 70, the fit of its cover plate 72 and resonant rod 73 as shown in Figure 9, this resonant rod 73 is positioned on the cover plate 72 and with cover plate 72 and is integrative-structure.
In the present embodiment, the bottom of resonant rod 73 is embedded in the cover plate 72, and promptly resonant rod 73 is die cast as one with mold insert module and cover plate 72, this resonant rod 73 and this cover plate 72 by of the same race or not same material make.
Particularly, this resonant rod 73 is shaped to mold insert via punching press, die casting or machining mode earlier, utilizes this resonant rod 73 to come die casting cover plate 72 as auxiliary mold insert again, makes resonant rod 73 and cover plate 72 with the mosaic mode structure that closely links into an integrated entity.
The cavity body filter 70 of present embodiment is roughly the same with embodiment five, its without part be resonant rod 73 run through cover plate 72 and with the concordant setting of cover plate 72 end faces.Herein, identical structure does not repeat them here.
Can be in the lump referring to Fig. 8, the partial structurtes schematic diagram of the cavity body filter product of present embodiment is identical with embodiment five, and as shown in the figure, a plurality of resonant rods are embedded on the cover plate, and it links closely, and it is fastening to need not screw.
Embodiment seven
A kind of cavity body filter 80, the fit of its cover plate 82 and resonant rod 83 as shown in figure 10, this resonant rod 83 is positioned on the cover plate 82 and with cover plate 82 and is integrative-structure.
In the present embodiment, the bottom of resonant rod 83 is embedded in the cover plate 82, and promptly resonant rod 83 is die cast as one with mold insert module and cover plate 82, this resonant rod 83 and this cover plate 82 by of the same race or not same material make.
Particularly, this resonant rod 83 is shaped to mold insert via modes such as punching presses earlier, utilizes this resonant rod 83 to come die casting cover plate 82 as auxiliary mold insert again, makes resonant rod 83 and cover plate 82 with the mosaic mode structure that closely links into an integrated entity.
The cavity body filter 80 of present embodiment is roughly the same with embodiment four, and it only is resonant rod 83 is arranged on the cover plate 82 as mold insert without part, and therefore, identical structure does not repeat them here.
Please in the lump referring to Figure 11, Figure 11 has shown the partial structurtes schematic diagram of the cavity body filter product of the utility model the 5th embodiment, and as shown in the figure, a plurality of resonant rods are embedded on the cover plate, and it links closely, and it is fastening to need not screw.
Embodiment eight
A kind of communication equipment, this communication are established and are comprised the above described cavity body filter of each embodiment, and this cavity body filter is located at the transceiver circuit part of this communication equipment, is used for signal is selected.
Embodiment nine
A kind of manufacture method of cavity body filter.The utility model embodiment also provides a kind of manufacture method of cavity body filter, in this manufacture method, with resonant rod and cavity or cover plate one die cast.
Embodiment ten
A kind of manufacture method of cavity body filter.The utility model embodiment also provides a kind of manufacture method of cavity body filter, in this manufacture method, earlier resonant rod is shaped to mold insert via punching press, die casting or machining mode, utilize resonant rod to come die casting cavity or cover plate then, make resonant rod and cavity or cover plate with the mosaic mode structure that closely links into an integrated entity as auxiliary mold insert.
A kind of frequency communication devices.The utility model embodiment also provides a kind of frequency communication devices, and this frequency communication devices comprises cavity, cover plate and resonant rod, wherein, cover plate capping cavity, resonant rod is arranged on cavity bottom or the cover plate as mold insert.
In practice, above-mentioned frequency communication devices is single merit device, two merit device, multi-function device, mixer or splitter.
In sum, those skilled in the art understand easily, the cavity body filter that the utility model embodiment provides is arranged on the resonant rod integral type on cavity bottom or the cover plate when manufacturing, need not mounting screw, high efficiency and time conservation, with low cost, resonant rod is good with contacting of cavity or cover plate, has optimized the singal reporting code of cavity body filter greatly.
Need to prove that in order to narrate conveniently, all only shown a resonant cavity in the application in each embodiment accompanying drawing, the cavity body filter in the practical application can comprise a plurality of resonant cavitys.
In the above-described embodiments, only the utility model has been carried out exemplary description, but those skilled in the art can carry out various modifications to the utility model after reading present patent application under the situation that does not break away from spirit and scope of the present utility model.
Claims (10)
1. cavity body filter, it is characterized in that, described cavity body filter comprises cavity, cover plate and resonant rod, wherein, the described cavity of described cover plate capping, described resonant rod is arranged on described cavity bottom or the described cover plate as mold insert, and described resonant rod and described cavity are made by same material.
2. cavity body filter according to claim 1 is characterized in that described resonant rod is shaped to mold insert via punching press, die casting or machining mode.
3. cavity body filter according to claim 1 is characterized in that, the sidewall of described resonant rod and its bottom is for seamlessly transitting, and the position that described resonant rod is connected with described cavity bottom is for seamlessly transitting.
4. cavity body filter according to claim 2 is characterized in that, described resonant rod runs through described cavity bottom setting.
5. according to each described cavity body filter among the claim 1-2, it is characterized in that described resonant rod is arranged at described cavity bottom, described resonant rod has recess.
6. cavity body filter according to claim 5 is characterized in that, the bottom surface of described recess is higher than the inner chamber bottom surface of described cavity, so that electroplate liquid is easy to flow out when the inwall of described recess is electroplated.
7. cavity body filter according to claim 1 is characterized in that, described resonant rod is die cast as one with mold insert module and described cover plate, and described resonant rod and described cover plate are made by same material.
8. a communication equipment is characterized in that, described communication equipment comprises that described cavity body filter is located at the transceiver circuit part of described communication equipment, is used for signal is selected according to each described cavity body filter among the claim 1-7.
9. frequency communication devices, it is characterized in that, described frequency communication devices comprises cavity, cover plate and resonant rod, wherein, the described cavity of described cover plate capping, described resonant rod is arranged on described cavity bottom or the described cover plate as mold insert, and described resonant rod and described cavity are made by same material.
10. frequency communication devices according to claim 9 is characterized in that, described frequency communication devices is single merit device, two merit device, multi-function device, mixer or splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206816561U CN202004122U (en) | 2010-12-24 | 2010-12-24 | Cavity filter, communication equipment and radio frequency communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206816561U CN202004122U (en) | 2010-12-24 | 2010-12-24 | Cavity filter, communication equipment and radio frequency communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004122U true CN202004122U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206816561U Expired - Fee Related CN202004122U (en) | 2010-12-24 | 2010-12-24 | Cavity filter, communication equipment and radio frequency communication device |
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|---|---|
| CN (1) | CN202004122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720338A (en) * | 2012-02-27 | 2016-06-29 | 株式会社Kmw | Radio Frequency Filter Having Cavity Structure |
| CN110770970A (en) * | 2018-03-23 | 2020-02-07 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
-
2010
- 2010-12-24 CN CN2010206816561U patent/CN202004122U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720338A (en) * | 2012-02-27 | 2016-06-29 | 株式会社Kmw | Radio Frequency Filter Having Cavity Structure |
| US10090572B1 (en) | 2012-02-27 | 2018-10-02 | Kmw Inc. | Radio frequency filter having a hollow box with a resonance element disposed therein and a depression with dot peen structures therein |
| CN110770970A (en) * | 2018-03-23 | 2020-02-07 | 深圳市大富科技股份有限公司 | Filter and communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20151224 |
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| EXPY | Termination of patent right or utility model |