CN202405399U - Cavity filter and cavity filter cover plate - Google Patents
Cavity filter and cavity filter cover plate Download PDFInfo
- Publication number
- CN202405399U CN202405399U CN 201120490600 CN201120490600U CN202405399U CN 202405399 U CN202405399 U CN 202405399U CN 201120490600 CN201120490600 CN 201120490600 CN 201120490600 U CN201120490600 U CN 201120490600U CN 202405399 U CN202405399 U CN 202405399U
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- Prior art keywords
- cover plate
- cavity
- adjustment screw
- screwed hole
- screw
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- Expired - Fee Related
Links
- 230000002787 reinforcement Effects 0.000 claims description 47
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 238000002955 isolation Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 6
- 239000011796 hollow space material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a cavity filter and a cavity filter cover plate. The cavity filter comprises a cavity and a cover plate covered on the cavity, wherein a threaded hole for mounting an adjusting screw is formed on the cover plate, the adjusting screw penetrates through the cover plate to enter the cavity, the head of the adjusting screw is located in the threaded hole, and the top surface of the head of the adjusting screw is lower than or level with the external surface of the cover plate. Compared with the prior art, the thickness of the cover plate is smaller, so that the product cost is reduced; a boss is arranged on the cover plate, so that the contact between the adjusting screw and the cover plate is firmer; reinforcing ribs are arranged at the periphery of the boss, so that the rigidity and strength of the cover plate are increased, and the product performance is improved; and the adjusting screw and a fixing screw are arranged inside the cover plate, so that the height of the cavity filter is reduced, the occupied space of the cavity filter is reduced and the product cost is further saved.
Description
Technical field
The utility model relates to a kind of cavity body filter and cavity filter cover board.
Background technology
Cavity filter cover board is made up of alloys such as aluminium, magnesium or iron usually, is mainly used in filter cavity to cooperate, and forms resonant cavity; At present the thickness of cover plate is 4mm at least, and is extremely shown in Figure 3 like Fig. 1, is cavity filter cover board in the prior art and cavity body filter structural representation; Cover plate 1 is provided with screwed hole 2 that is used for the install adjustment screw and the screwing through hole 3 that is used to install and fix screw, and cover plate needs enough rigidity and intensity usually, is locked on the filter cavity 4 through hold-down screw 5; Make behind the cover plate can with the cavity excellent contact, in addition, cover plate also will have enough thickness; Adjustment screw 6 and screwed hole are locked reliably, said hold-down screw 5 and adjustment screw 6 equal some be positioned at cover plate 1 above, the thickness of establishing cover plate is h3; The height of cavity is h1; The thickness of cavity bottom is h2, and the part that adjustment screw exceeds on the cover plate highly is h5, and the whole height of cavity body filter is h6=h1+h2+h3+h5.
In research and practice process to prior art, the inventor of the utility model finds rigidity and the intensity in order to guarantee cover plate, must increase the thickness of whole cover plate; Can increase the thickness of whole cavity body filter, cause increasing the cost of entire product, in addition; Hold-down screw and adjustment screw all some be positioned at cover plate above, make the overall dimensions of cavity body filter elongated, taken very big space; And increased manufacturing cost; And this part height space just to be used for holding nut, pad, adjustment screw and screw first-class, and the resonance space that is used as of no use is used, and has caused space waste.
The utility model content
The utility model causes cost increase and the long defective of overall filter size for solving in the prior art for rigidity that guarantees cover plate and the thickness that intensity increases whole cover plate, and a kind of cavity filter cover board and cavity body filter are provided.
For realizing above-mentioned utility model purpose, the utility model adopts following technical scheme:
A kind of cavity body filter; Comprise: cavity with cover the cover plate on the cavity; Said cover plate is provided with the screwed hole of install adjustment screw; Said adjustment screw is passed said cover plate and is got into cavity, and the head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Said cover plate is provided with boss near filter cavity one side, said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
The thickness of said cover plate is 0.5～3mm.
The screwed hole of said adjustment screw is arranged at the position of answering with said cavity interior resonance pole pair, and said adjustment screw stretches into the hollow space of resonant rod.
The screwed hole of said adjustment screw is arranged at the corresponding position of coupling window between the cavity interior resonance chamber, and the boss that said adjustment screw is passed said screwed hole and screwed hole bottom stretches into coupling window.
Also be provided with reinforcement on the said cover plate, boss and said reinforcement corresponding with coupling window on the said cover plate link together.
Be provided with isolation bar in the said cavity, the distribution shape of said reinforcement is consistent with the distribution shape of said isolation bar.
Be provided with the step via hole that is used to install and fix screw in the said reinforcement; Said hold-down screw is used for cover plate is fixed on cavity; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Be provided with frame around on the said cover plate; Said frame is provided with the step via hole that installs and fixes screw; Said hold-down screw is installed in cover plate on the filter cavity through said step via hole, and the head of said hold-down screw is positioned at the outer surface flush of the end face and the said cover plate of said step via hole or head.
A kind of cavity filter cover board; Said cover plate is provided with the screwed hole of install adjustment screw; Said adjustment screw is passed said cover plate and is got into cavity; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Said cover plate is provided with boss near filter cavity one side, said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
Also be provided with reinforcement on the said cover plate; Be provided with the step via hole that is used to install and fix screw in the said reinforcement; Said hold-down screw is used for cover plate is fixed on cavity; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
The utility model relates to a kind of cavity body filter and cavity filter cover board, and with respect to prior art, the thickness of cover plate is thinner than prior art; Reduced the cost of product, boss on the cover board is set, it is more firm that adjustment screw is contacted with cover plate; Around boss, reinforcement is set, has increased the rigidity and the intensity of cover plate, improved performance of products; And adjustment screw and hold-down screw be arranged on the inside of cover plate; Reduce the height of cavity body filter, reduced the shared space of cavity body filter, further practiced thrift the cost of product.
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.
Fig. 1 is cavity body filter covering plate structure sketch map in the prior art;
Fig. 2 is cavity body filter partial structurtes cutaway view in the prior art;
Fig. 3 is cavity body filter partial structurtes sketch map in the prior art;
Fig. 4 is the utility model embodiment one cavity body filter partial structurtes cutaway view;
Fig. 5 is the utility model embodiment one cavity body filter partial structurtes cutaway view;
Fig. 6 is the utility model embodiment one cavity body filter partial structurtes sketch map;
Fig. 7 is the utility model embodiment two cavity body filter partial structurtes cutaway views;
Fig. 8 is the utility model embodiment three cavity filter cover boards one side partial structurtes sketch mapes;
Fig. 9 is the utility model embodiment three cavity filter cover board another side partial structurtes sketch mapes.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, 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.
Embodiment one provides a kind of cavity body filter; Like Fig. 3, Fig. 4, Fig. 6 and shown in Figure 9; Comprise: cavity 4 with cover the cover plate 1 on the cavity, said cover plate 1 is provided with the screwed hole of install adjustment screw 6, said adjustment screw 6 is passed said cover plate 1 and is got into cavity 4; The head of said adjustment screw 6 is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Said cover plate 1 is provided with boss on the side near filter cavity, said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
The screwed hole of said adjustment screw is arranged at the position of answering with said cavity interior resonance pole pair, and said adjustment screw is passed the corresponding screwed hole of resonant rod and is connected with said screwed hole and processes the hollow space that threaded boss 7 stretches into resonant rod.
The screwed hole of said adjustment screw is arranged at the corresponding position of coupling window between the cavity interior resonance chamber, and the boss 9 that said adjustment screw is passed said screwed hole and screwed hole bottom stretches into coupling window.
Also be provided with reinforcement on the said cover plate, boss 9 corresponding with coupling window on the said cover plate links together with said reinforcement.
The thickness of said cover plate 1 is H3, also is provided with reinforcement around said cover plate 1 convex platform 7, and the thickness of said cover plate and reinforcement is H4.The thickness H3 of said cover plate is made as 0.5～3mm, can adopt 0.5mm, 1mm, 1.5mm, 2mm or 3mm.Because the thickness of cover plate is too thin, the boss that is connected with screwed hole on the cover board is set, be provided with screw thread in the boss; The screw thread of screwed hole is used to extend; During the install adjustment screw, boss and adjustment screw are locked each other, because boss is set; Make the robust more that contacts of adjustment screw and cover plate, avoided cover plate to cross thin insecure defective that contacts with adjustment screw.
Said reinforcement links together with the corresponding boss of coupling window with said; With the said boss corresponding with coupling window is the reinforcement that middle mind-set is extended all around; Can be provided with the boss corresponding with coupling window on the said cover plate, be also not only one of the reinforcement that extends around the middle mind-set with the boss corresponding with coupling window, and said reinforcement can prolong a bit ofly promptly to be ended; Do not contact, can constantly prolong yet up to being connected with other reinforcements with other reinforcements.Around the boss corresponding, reinforcement is set, has avoided manufacturing cost has been practiced thrift in whole cover plate thickening, strengthened the strength and stiffness of cover plate simultaneously again,, can increase the height of reinforcement in order further to strengthen the strength and stiffness of cover plate with coupling window.
Be provided with isolation bar in the said cavity, the reinforcement on the said cover plate links together mutually through the boss corresponding with coupling window, and the distribution shape of said reinforcement is consistent with the distribution shape of said isolation bar.Isolation bar in the lower surface of said cover plate and the cavity forms resonant cavity, and the lower surface of cover plate is provided with reinforcement with the corresponding position of isolation bar that forms resonant cavity.
Be provided with the step via hole 8 that is used to install and fix screw 5 in the said reinforcement; Said hold-down screw 5 is used for cover plate 1 is fixed on cavity 4; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Be provided with frame 10 around on the said cover plate 1; Said frame 10 is provided with the step via hole that installs and fixes screw; Said hold-down screw is installed in cover plate on the filter cavity through said step via hole, and the head of said hold-down screw is positioned at the outer surface flush of the end face and the said cover plate of said step via hole or head.
The another kind of execution mode of present embodiment, of Fig. 5, also can not be provided with boss.
Compare with Fig. 2 like Fig. 4; The whole height h6 of cavity body filter remains unchanged; The size h5 that exceeds cover plate in the prior art is incorporated in the filter cavity; Increased the resonance space of cavity body filter, can do the frequency of filter lowlyer, resonant rod can adopt the mode that is more suitable for low frequency to design and produce simultaneously.
When the height of filter is constant (h6 is constant), adopt the utility model embodiment Q value to do more, index is better.Because resonance space increases, resonant rod can adopt the mode that is more suitable for strengthening the Q value to design and produce.
The utility model compared with prior art can reduce the height of cavity body filter, and main cause is following: 1, the thickness of cover plate is thinner than prior art, and boss and isolation bar on the cover board are set, and utilizes boss and isolation bar to increase the rigidity and the intensity of cover plate; 2, adjustment screw and hold-down screw are arranged on cover plate inside; Stretch out in cover plate outside with adjustment screw of the prior art and hold-down screw and to compare, further reduced the height of cavity body filter, utilize boss and isolation bar; Screwed hole is set in boss and step is set in isolation bar; Make adjustment screw and hold-down screw be arranged on cover plate inside, do not reduce the height of adjustment screw, also can not influence the performance of cavity body filter.
The utility model relates to a kind of cavity body filter, and the thickness of cover plate is thinner than prior art, has reduced the cost of product; Boss on the cover board is set, and it is more firm that adjustment screw is contacted with cover plate, and reinforcement is set around boss; Increased the rigidity and the intensity of cover plate, improved performance of products, and adjustment screw and hold-down screw have been arranged on the inside of cover plate; Reduce the height of cavity body filter, reduced the shared space of cavity body filter, further practiced thrift the cost of product.
Embodiment two
A kind of cavity body filter; As shown in Figure 7; Comprise: cavity with cover the cover plate on the cavity, said cover plate is provided with the screwed hole of install adjustment screw, said adjustment screw is passed said cover plate and is got into cavity; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Said cover plate is provided with boss near filter cavity one side, said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
The thickness of said cover plate is 0.5～3mm.
The screwed hole of said adjustment screw is arranged at the position of answering with said cavity interior resonance pole pair, and said adjustment screw stretches into the hollow space of resonant rod.
The screwed hole of said adjustment screw is arranged at the corresponding position of coupling window between the cavity interior resonance chamber, and the boss that said adjustment screw is passed said screwed hole and screwed hole bottom stretches into coupling window.
Also be provided with reinforcement on the said cover plate, boss and said reinforcement corresponding with coupling window on the said cover plate link together.
The thickness of said cover plate 1 is H3, also is provided with reinforcement around said cover plate 1 convex platform 7, and the thickness of said cover plate and reinforcement is H4.The thickness H3 of said cover plate is made as 0.5～3mm, can adopt 0.5mm, 1mm, 1.5mm, 2mm or 3mm.Because the thickness of cover plate is too thin, the boss that is connected with screwed hole on the cover board is set, be provided with screw thread in the boss; The screw thread of screwed hole is used to extend; During the install adjustment screw, boss and adjustment screw are locked each other, because boss is set; Make the robust more that contacts of adjustment screw and cover plate, avoided cover plate to cross thin insecure defective that contacts with adjustment screw.
The height h1 of cavity about equally in the height H 1 of the utility model embodiment two filter cavities and the prior art; The height H 6 of cavity body filter is less than cavity body filter height h6 of the prior art; The reason of cavity filtering size decreases mainly contains: the thickness H 3 of cover plate is littler than the thickness h 3 of prior art cover plate, has reduced the height of h5 in the prior art, and compared with prior art filter list chamber Q value is approximately identical; The existing design of filter aspect ratio reduces; Because the height of filter reduces, reduced the space of assembling filter, reduced production cost.
Embodiment three,
A kind of cavity filter cover board; Like Fig. 8 and shown in Figure 9; Said cover plate 1 is provided with the screwed hole of install adjustment screw; Said adjustment screw is passed said cover plate and is got into cavity, and the head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Said cover plate 1 is provided with boss on the side near filter cavity, said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
The screwed hole of said adjustment screw is arranged at the position of answering with said cavity interior resonance pole pair, and said adjustment screw is passed the corresponding screwed hole of resonant rod and is connected with said screwed hole and processes the hollow space that threaded boss 7 stretches into resonant rod.
The screwed hole of said adjustment screw is arranged at the corresponding position of coupling window between the cavity interior resonance chamber, and the boss 9 that said adjustment screw is passed said screwed hole and screwed hole bottom stretches into coupling window.
Also be provided with reinforcement on the said cover plate, boss 9 corresponding with coupling window on the said cover plate links together with said reinforcement.
The thickness of said cover plate 1 is H3, also is provided with reinforcement around said cover plate 1 convex platform 7, and the thickness of said cover plate and reinforcement is H4.The thickness H3 of said cover plate is made as 0.5～3mm, can adopt 0.5mm, 1mm, 1.5mm, 2mm or 3mm.Because the thickness of cover plate is too thin, the boss that is connected with screwed hole on the cover board is set, be provided with screw thread in the boss; The screw thread of screwed hole is used to extend; During the install adjustment screw, boss and adjustment screw are locked each other, because boss is set; Make the robust more that contacts of adjustment screw and cover plate, avoided cover plate to cross thin insecure defective that contacts with adjustment screw.
Said reinforcement links together with the corresponding boss of coupling window with said; With the said boss corresponding with coupling window is the reinforcement that middle mind-set is extended all around; Can be provided with the boss corresponding with coupling window on the said cover plate, be also not only one of the reinforcement that extends around the middle mind-set with the boss corresponding with coupling window, and said reinforcement can prolong a bit ofly promptly to be ended; Do not contact, can constantly prolong yet up to being connected with other reinforcements with other reinforcements.Around the boss corresponding, reinforcement is set, has avoided manufacturing cost has been practiced thrift in whole cover plate thickening, strengthened the strength and stiffness of cover plate simultaneously again,, can increase the height of reinforcement in order further to strengthen the strength and stiffness of cover plate with coupling window.
Said cover plate is provided with the step via hole 8 that is used to install and fix screw 5; Said hold-down screw 5 is used for cover plate 1 is fixed on cavity 4, and the head of said hold-down screw 5 is positioned at the outer surface flush of the end face end face and the said cover plate of said step via hole 8 or head.
Be provided with frame 10 around on the said cover plate 1; Said frame 10 is provided with the step via hole that installs and fixes screw; Said hold-down screw is installed in cover plate on the filter cavity through said step via hole, and the head of said hold-down screw is positioned at the outer surface flush of the end face and the said cover plate of said step via hole or head.
The utility model relates to a kind of cavity filter cover board, and the thickness of cover plate is thinner than prior art, has reduced the cost of product; Boss on the cover board is set, and it is more firm that adjustment screw is contacted with cover plate, and reinforcement is set around boss; Increased the rigidity and the intensity of cover plate, improved performance of products, and adjustment screw and hold-down screw have been arranged on the inside of cover plate; Reduce the height of cavity body filter, reduced the shared space of cavity body filter, further practiced thrift the cost of product.
Used concrete example among this paper the principle and the execution mode of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for those of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (12)
1. cavity body filter; It is characterized in that: comprising: cavity with cover the cover plate on the cavity; Said cover plate is provided with the screwed hole of install adjustment screw; Said adjustment screw is passed said cover plate and is got into cavity, and the head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
2. cavity body filter according to claim 1 is characterized in that: said cover plate is provided with boss near filter cavity one side, and said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
3. cavity body filter according to claim 1 is characterized in that: the thickness of said cover plate is 0.5～3mm.
4. cavity body filter according to claim 2 is characterized in that: the screwed hole of said adjustment screw is arranged at the position of answering with said cavity interior resonance pole pair, and said adjustment screw stretches into the hollow space of resonant rod.
5. cavity body filter according to claim 2; It is characterized in that: the screwed hole of said adjustment screw is arranged at the corresponding position of coupling window between the cavity interior resonance chamber, and the boss that said adjustment screw is passed said screwed hole and screwed hole bottom stretches into coupling window.
6. cavity body filter according to claim 5 is characterized in that: also be provided with reinforcement on the said cover plate, boss and said reinforcement corresponding with coupling window on the said cover plate link together.
7. cavity body filter according to claim 6 is characterized in that: be provided with isolation bar in the said cavity, the distribution shape of said reinforcement is consistent with the distribution shape of said isolation bar.
8. cavity body filter according to claim 6; It is characterized in that: be provided with the step via hole that is used to install and fix screw in the said reinforcement; Said hold-down screw is used for cover plate is fixed on cavity; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
9. cavity body filter according to claim 8; It is characterized in that: be provided with frame around on the said cover plate; Said frame is provided with the step via hole that installs and fixes screw; Said hold-down screw is installed in cover plate on the filter cavity through said step via hole, and the head of said hold-down screw is positioned at the outer surface flush of the end face and the said cover plate of said step via hole or head.
10. cavity filter cover board; It is characterized in that: said cover plate is provided with the screwed hole of install adjustment screw; Said adjustment screw is passed said cover plate and is got into cavity; The head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
11. cavity filter cover board according to claim 10 is characterized in that: said cover plate is provided with boss near filter cavity one side, and said boss is connected with said screwed hole and is processed with screw thread, the threaded portion of the screwed hole that is used to extend.
12. cavity filter cover board according to claim 11; It is characterized in that: also be provided with reinforcement on the said cover plate; Be provided with the step via hole that is used to install and fix screw in the said reinforcement; Said hold-down screw is used for cover plate is fixed on cavity, and the head of said adjustment screw is positioned at said screwed hole, the end face of the head of said adjustment screw be lower than said cover plate outer surface or with the outer surface flush of said cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120490600 CN202405399U (en) | 2011-11-30 | 2011-11-30 | Cavity filter and cavity filter cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120490600 CN202405399U (en) | 2011-11-30 | 2011-11-30 | Cavity filter and cavity filter cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405399U true CN202405399U (en) | 2012-08-29 |
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ID=46703026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120490600 Expired - Fee Related CN202405399U (en) | 2011-11-30 | 2011-11-30 | Cavity filter and cavity filter cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544655A (en) * | 2011-11-30 | 2012-07-04 | 深圳市大富科技股份有限公司 | Cavity filter and cavity filter cover plate |
-
2011
- 2011-11-30 CN CN 201120490600 patent/CN202405399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544655A (en) * | 2011-11-30 | 2012-07-04 | 深圳市大富科技股份有限公司 | Cavity filter and cavity filter cover plate |
| CN102544655B (en) * | 2011-11-30 | 2014-07-30 | 深圳市大富科技股份有限公司 | Cavity filter and cavity filter cover plate |
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|---|---|---|---|
| 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: 20120829 Termination date: 20141130 |
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| EXPY | Termination of patent right or utility model |