CN102255124A - Cavity filter, communication equipment, communication equipment cover plate component and tuning structure - Google Patents
Cavity filter, communication equipment, communication equipment cover plate component and tuning structure Download PDFInfo
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- CN102255124A CN102255124A CN2011101040322A CN201110104032A CN102255124A CN 102255124 A CN102255124 A CN 102255124A CN 2011101040322 A CN2011101040322 A CN 2011101040322A CN 201110104032 A CN201110104032 A CN 201110104032A CN 102255124 A CN102255124 A CN 102255124A
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Abstract
The invention discloses a tuning structure, and a cavity filter and communication equipment which use the turning structure. The tuning structure is arranged on a cover plate of the communication equipment and comprises a tuning screw and a nut, wherein the nut comprises an assembly part and is fixedly connected with the cover plate through the assembly part; and the tuning screw is meshed with the inner thread of the nut. In the tuning structure, the cavity filter and the communications equipment which are provided by the invention, wrenches or sleeves are not needed when the tuning screw are assembled and adjusted, the operation can be extremely conveniently completed by a single hand, standardized operation can be performed, and the production efficiency is improved to a great extent. In addition, the tuning structure is simple and compact and makes the miniaturization and microminiaturization of the cavity filter and other communication equipment easily realized.
Description
Technical field
The present invention relates to the communication equipment technical field, be specifically related to a kind of tuning structure and use cavity body filter, communication equipment and the communication equipment cover plate assembly of this tuning structure.
Background technology
At communication technical field; particularly in the microwave telecommunication devices; regular meeting uses filter; and filter includes tuner; such as cavity body filter, its inside cavity has a plurality of passages, and each passage all is made up of several single chambeies; between each single chamber and the single chamber, comprise on the perceptual limit and all can use tuner.In the prior art, tuner 1 ' all is made up of tuning screw rod 11 ', locking nut 12 ' and pad 13 ' usually, tuning screw rod 11 ' screws in the screwed hole of cover plate 2 ', locking nut 12 ' screws on tuning screw rod 11 ', and by pad 13 ' tuning screw rod 11 ' is locked on the cover plate 2 '.When needs are tuning, earlier locking nut 12 ' is unclamped, turn tuning screw rod 11 ' again and carry out tuningly, tighten locking nut 12 ' (referring to Fig. 1) after tuning the finishing again.
In research and practice process to this prior art, the present inventor finds, though this structure is simple relatively, needs both hands to operate simultaneously, also need use aids such as spanner or sleeve, and operation is very inconvenient.In addition, owing in debugging the cavity body filter operation, often need to change tuning screw rod, and the tuner accessory of present technique is scattered, assembling process is numerous and diverse, puts to no little inconvenience for the tuning screw rod of replacing, has influenced production efficiency to a great extent.
Summary of the invention
Main purpose of the present invention is, a kind of cavity body filter, communication equipment, communication equipment cover plate assembly and tuning structure are provided, and to solve above shortcomings in the prior art, can install and change tuning screw rod quickly and easily, enhances productivity.
For achieving the above object, the present invention by the following technical solutions.
A kind of cavity body filter is provided, comprises cavity, cover plate and tuning structure, the described cavity of described cover plate capping, tuning structure comprises tuning screw rod and nut; Described nut comprises installation portion, and fixedlys connected with described cover plate by described installation portion; Described tuning screw rod passes described nut and cover plate and extend in the cavity, the external screw thread of described tuning screw rod and the engagement of the internal thread of described nut.
A kind of communication equipment is provided, and described communication equipment can be single multiplexer, duplexer, mixer or tower amplifier.
The present invention also provides a kind of communication equipment cover plate assembly, comprises cover plate, also comprises tuning structure, and described tuning structure comprises tuning screw rod and nut; Described nut comprises installation portion, and fixedlys connected with described cover plate by described installation portion; The internal thread engagement of described tuning screw rod and described nut.
The present invention also provides a kind of tuning structure, and it is installed on the cover plate of cavity body filter, comprises tuning screw rod and nut, and described nut comprises installation portion, and fixedlys connected with described cover plate by described installation portion; The internal thread engagement of described tuning screw rod and described nut.
With respect to prior art, cavity body filter of the present invention or communication equipment are owing to adopted the tuning structure that such scheme provided, need not spanner or sleeve when installing and regulating tuning screw rod, one-handed performance can be finished, very convenient, can carry out standardized work, enhance productivity to a great extent.In addition, simple in structure, compactness, owing to no longer need spanner or sleeve when installing and regulating tuning screw rod, can be during operation because of the space does not produce interference inadequately, so the gap between each tuning screw rod can accomplish forr a short time, easily realizes the miniaturization and the microminiaturization of cavity body filter and other communication equipment.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done simple the introduction in will describing embodiment below.Apparently, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other execution mode according to these accompanying drawings.
Fig. 1 is the tuning structure of cavity body filter in the prior art;
Fig. 2 is the structural representation of cavity body filter in the embodiment of the invention;
Fig. 3 is in the tuning structure of the embodiment of the invention, the vertical view of nut;
Fig. 4 is in the tuning structure of the embodiment of the invention, the main cutaway view of nut;
Fig. 5 a is in the tuning structure of the embodiment of the invention, one of structural representation of shell fragment;
Fig. 5 b is in the tuning structure of the embodiment of the invention, two of the structural representation of shell fragment
Fig. 6 is the structural representation of communication equipment cover plate assembly in the embodiment of the invention;
Fig. 7 a is in the tuning structure of the embodiment of the invention, one of structural representation of nut;
Fig. 7 b is in the tuning structure of the embodiment of the invention, two of the structural representation of nut;
Fig. 7 c is in the tuning structure of the embodiment of the invention, three of the structural representation of nut.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
The present invention at first provides a kind of cavity body filter, and concrete structure can be with reference to shown in Figure 2.
Cavity body filter of the present invention comprises cover plate 2 and cavity 3, have several passages (not shown) in the cavity 3, this passage is made up of a plurality of single chambeies that are communicated with successively, form the space of sealing between cover plate 2 and the cavity 3, be called resonant cavity, a resonant rod 4 all is set in each resonant cavity, and this resonant rod 4 is a hollow circular cylinder, and screw 5 promptly is fixed on resonant rod 4 in the resonant cavity by this screw hole.
Below further describe the detailed technology scheme of this tuning structure 1.
With reference to Fig. 3 and shown in Figure 4, an end of the internal thread of nut 12 is provided with an annular groove 122, and this annular groove 122 can be used the escape of internal thread.Place a shell fragment 13 in annular groove 122, this shell fragment 13 is the annular thin slice, and the through hole 131 in the middle of it is coaxial with nut 12 internal thread holes, and the diameter of this through hole 131 is slightly less than the path of internal thread.For making shell fragment 13 have more elasticity, increase the self-locking effect and prolong its useful life, the present invention adopts following two kinds of technical schemes:
One, with reference to shown in Fig. 5 a, shell fragment 13 integral body are shim-like, and middle through hole 131 has been disposed radially one or more breach 132, when being subjected to extruding, can produce the bigger space of dodging.In this programme, breach 132 is preferably and is symmetrical arranged, and locate special processing slightly, as with the chimb of indentation, there axioversion slightly, like this, when through hole 131 is squeezed, breach 132 can be done to tilt to dodge, replace the form of dodging of compression material, thereby can produce the bigger space of dodging, be equivalent to increase the elasticity of shell fragment.
Two, with reference to shown in Fig. 5 b, shell fragment 13 is for having the annulus thin slice of local opening.This structure and a last scheme have the effect that plays the same tune on different musical instruments, and when through hole 131 was subjected to extruding, because the edge of circular shell fragment has opening 133, extruding force just made radially distending of shell fragment 13, thereby strengthens its elasticity.
For further increasing the elasticity and the useful life of shell fragment 13, shell fragment 13 can adopt beryllium-bronze, tin-phosphor bronze elastomeric material to make.
Cavity body filter of the present invention adopts the nut 12 with self-locking structure that tuning screw rod 11 is arranged on the cover plate 2, when tuning cavity fluid filter resonance frequency, only needing to screw tuning screw rod 11 with bottle opener gets final product, avoid the need in the tuning structure 1 ' as shown in Figure 1 with spanner or sleeve locking nut 12 ' to be unclamped earlier, screwed tuning screw rod 11 ' again.After tuning the finishing, also need complicated formality that locking nut 12 ' is screwed, have simple to operately, quick, accessory is few, and advantages such as compact conformation can be carried out standardized work, significantly improve production efficiency.And, owing to no longer need spanner or sleeve when installing and regulating tuning screw rod 11, can be during operation because of the space does not produce interference inadequately, so the gap between each tuning screw rod 11 can accomplish forr a short time, easily realizes the miniaturization and the microminiaturization of cavity body filter and other communication equipment.
Simultaneously, the present invention also provides a kind of communication equipment, and it is made up of a plurality of communication equipments, and the cavity body filter comprising the present invention above relates to can make this communication equipment designs simplification, and cost reduces, and concrete reason repeats no more as mentioned above herein.
In addition, the present invention also provides a kind of cover plate assembly of communication equipment, and alleged here communication equipment mainly refers to be used for the electronic equipment of microwave communication, includes but not limited to filter, no longer enumerates herein.
With reference to shown in Figure 6, this cover plate assembly comprises cover plate 2, and normally, cover plate 2 is made of metal, and can prevent electromagnetic interference.This cover plate assembly also comprises tuning structure 1, and the described tuning structure of present embodiment 1 is similar with the tuning structure 1 in the cavity body filter above, repeats no more herein.
Adopt the tuning structure 1 of present embodiment and the structural relation between this tuning structure 1 and the cover plate 2, can make the communication equipment designs simplification that adopts cover plate assembly of the present invention, enhance productivity, thereby reduce production costs.
Further, in the cavity body filter that the above embodiment of the present invention relates to, communication equipment and the communication equipment cover plate assembly, the frame mode that tuning structure 1 adopts nut 12 to fixedly connected with cover plate 2, the described fixedly connected connection that includes but not limited to press, be threaded and modes such as interference fit is connected, the following specifically describes the design feature of these three kinds of connected modes.
Fig. 7 a is the structural representation of nut 12 in the connected mode that presses of the present invention.As figure, nut 12 comprises installation portion 121 and the position-arresting part 123 that is connected with installation portion 121 one, annular groove (not shown) is set between installation portion 121 and the position-arresting part 123, cover plate 2 is provided with the installing hole (not shown), after nut 12 vertically passed this installing hole and presses, the upper surface of cover plate 2 or lower surface and this position-arresting part 123 fitted.At this moment, nut 12 is fixed on the cover plate 2 by riveted, and cover plate 2 is embedded at above-mentioned annular groove place, and the effect after pressing can be with reference to shown in Figure 2.
Fig. 7 b is the structural representation of nut 12 in the thread connecting mode of the present invention.As figure, nut 12 comprises installation portion 121 and position-arresting part 123, and installation portion 121 places are shaped on screw thread 124.Correspondence is provided with the threaded mounting hole (not shown) on the cover plate 2, and after nut 12 screwed in this threaded mounting hole, above-mentioned position-arresting part 123 fitted with the upper surface or the lower surface of cover plate 2.At this moment, nut 12 is fastened onto on the cover plate 2.
Fig. 7 c is the structural representation of nut in the interference fit connected mode of the present invention.As figure, nut comprises installation portion 121 and position-arresting part 123, and installation portion 121 places are shaped on the annular knurl 125 that prevents that nut 12 from rotating or deviating from.Be provided with the installing hole (not shown) on the cover plate 2 accordingly, pack this installing hole in the mode of interference fit nut 12 after, position-arresting part 123 fits with the upper surface or the lower surface of cover plate 2.At this moment, nut 12 is fixed on the cover plate 2.
Based on above-mentioned each embodiment, for further optimizing the invention process effect, improve its tuning precision and optimize its assembly process, the present invention further increases and optimizes following scheme, to reduce cost, promotes properties of product:
When 1, assembling, an end that nut 12 is provided with shell fragment 13 is installed in resonant cavity, and simultaneously, tuning screw rod 11 is outer toward interior installation by resonant cavity, like this, is convenient to assembling.Simultaneously, tuning screw rod 11 afterbodys can be made into a word or cross recess, are convenient to adopt bottle opener to screw to carry out tuning; Also can make " one " word convex tendon or similar structures, so that free-hand operation, save the trouble of tool using.
2, adopt fine thread to engage between nut 12 and the tuning screw rod 11, so that improve the assembly precision and the tuning precision of tuning structure 1, thus the lifting properties of product.
3, shell fragment 13 can so just can reduce material cost, thereby reduce product cost with elasticity nylon material replacement preferably.
Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. a cavity body filter comprises cavity, cover plate and tuning structure, the described cavity of described cover plate capping, and it is characterized in that: tuning structure comprises tuning screw rod and nut; Described nut comprises installation portion, and fixedlys connected with described cover plate by described installation portion; Described tuning screw rod passes described nut and cover plate and extend in the cavity, the external screw thread of described tuning screw rod and the engagement of the internal thread of described nut.
2. cavity body filter as claimed in claim 1, it is characterized in that: an end of described nut inner thread is provided with annular groove, be provided with shell fragment in the described annular groove, described shell fragment has the through hole coaxial with described nut inner threaded hole, and described through-hole diameter is less than described internal thread path.
3. cavity body filter as claimed in claim 2 is characterized in that: the through hole of described shell fragment has been disposed radially one or more breach;
Or described shell fragment is the annulus thin slice with opening.
4. as each described cavity body filter in the claim 1～3, it is characterized in that: describedly fixedly connectedly comprise the connection that presses, being threaded is connected with interference fit.
5. cavity body filter as claimed in claim 4 is characterized in that: described nut also comprises the position-arresting part that is connected with described installation portion one; Described press to connect be specially, described cover plate correspondence is provided with installing hole, after described nut vertically passed this installing hole and presses, the upper surface of described cover plate or lower surface and described position-arresting part fitted.
6. a communication equipment is characterized in that: comprise as each described cavity body filter in the claim 1～5.Described communication equipment is single multiplexer, duplexer, mixer or tower amplifier.
7. a communication equipment cover plate assembly comprises cover plate, it is characterized in that: also comprise tuning structure, described tuning structure comprises tuning screw rod and nut; Described nut comprises installation portion, and fixedlys connected with described cover plate by described installation portion; The internal thread engagement of described tuning screw rod and described nut.
8. cover plate assembly as claimed in claim 7 is characterized in that: describedly fixedly connectedly comprise the connection that presses, being threaded is connected with interference fit.
9. cover plate assembly as claimed in claim 8 is characterized in that: described nut also comprises the position-arresting part that is connected with described installation portion one; Described press to connect be specially, described cover plate correspondence is provided with installing hole, after described nut vertically passed this installing hole and presses, the upper surface of described cover plate or lower surface and described position-arresting part fitted.
10. a tuning structure is installed on the cover plate of cavity body filter, it is characterized in that: comprise tuning screw rod and nut, described nut comprises installation portion, and fixedlys connected with described cover plate by described installation portion; The internal thread engagement of described tuning screw rod and described nut.
11. tuning structure as claimed in claim 10, it is characterized in that: an end of described nut inner thread is provided with annular groove, be provided with shell fragment in the described annular groove, described shell fragment has the through hole coaxial with described nut inner threaded hole, and described through-hole diameter is less than described internal thread path; Described through hole has been disposed radially one or more breach, or described shell fragment is the annulus thin slice with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101040322A CN102255124A (en) | 2011-04-22 | 2011-04-22 | Cavity filter, communication equipment, communication equipment cover plate component and tuning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101040322A CN102255124A (en) | 2011-04-22 | 2011-04-22 | Cavity filter, communication equipment, communication equipment cover plate component and tuning structure |
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| CN102255124A true CN102255124A (en) | 2011-11-23 |
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| CN2011101040322A Pending CN102255124A (en) | 2011-04-22 | 2011-04-22 | Cavity filter, communication equipment, communication equipment cover plate component and tuning structure |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094649A (en) * | 2013-01-25 | 2013-05-08 | 华为技术有限公司 | Cavity filter |
| CN103176169A (en) * | 2011-12-21 | 2013-06-26 | 中国科学院电子学研究所 | Method for improving broadband active scaler amplitude and phase characteristics by utilizing multi-stage balance equalization filter |
| CN104241797A (en) * | 2013-06-07 | 2014-12-24 | 苏州络湾电子科技有限公司 | Resonant cavity for coaxial resonant diplexer, and coaxial resonant diplexer thereof |
| CN104969411A (en) * | 2013-10-10 | 2015-10-07 | 华为技术有限公司 | Filter and communication module using same |
| WO2017000255A1 (en) * | 2015-06-30 | 2017-01-05 | 华为技术有限公司 | Resonator and filter |
| WO2017113170A1 (en) * | 2015-12-30 | 2017-07-06 | 深圳市大富科技股份有限公司 | Cavity filter |
| WO2017113166A1 (en) * | 2015-12-30 | 2017-07-06 | 深圳市大富科技股份有限公司 | Cavity filter, cover plate and pressing rivet threaded sleeve thereof |
| CN108555239A (en) * | 2018-05-31 | 2018-09-21 | 广西玉柴机器股份有限公司 | A kind of air cylinder of marine diesel engine body hand ejection core box and release method |
| CN110574222A (en) * | 2017-05-02 | 2019-12-13 | 株式会社Kmw | Cavity type radio frequency filter |
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| KR20100102378A (en) * | 2009-03-11 | 2010-09-24 | 주식회사 신아정밀 | Screw rod holder for tuning rf-filter |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176169A (en) * | 2011-12-21 | 2013-06-26 | 中国科学院电子学研究所 | Method for improving broadband active scaler amplitude and phase characteristics by utilizing multi-stage balance equalization filter |
| CN103094649A (en) * | 2013-01-25 | 2013-05-08 | 华为技术有限公司 | Cavity filter |
| CN103094649B (en) * | 2013-01-25 | 2016-12-28 | 华为技术有限公司 | Cavity body filter |
| CN104241797A (en) * | 2013-06-07 | 2014-12-24 | 苏州络湾电子科技有限公司 | Resonant cavity for coaxial resonant diplexer, and coaxial resonant diplexer thereof |
| CN104241797B (en) * | 2013-06-07 | 2018-01-30 | 东阳市天齐知识产权运营有限公司 | Resonator and coaxial resonance duplexer for coaxial resonance duplexer |
| CN104969411B (en) * | 2013-10-10 | 2017-09-12 | 华为技术有限公司 | Wave filter and apply its communication module |
| CN104969411A (en) * | 2013-10-10 | 2015-10-07 | 华为技术有限公司 | Filter and communication module using same |
| WO2017000255A1 (en) * | 2015-06-30 | 2017-01-05 | 华为技术有限公司 | Resonator and filter |
| CN107851871A (en) * | 2015-06-30 | 2018-03-27 | 华为技术有限公司 | A kind of resonator and wave filter |
| CN107851871B (en) * | 2015-06-30 | 2020-08-07 | 华为技术有限公司 | Resonator and filter |
| WO2017113170A1 (en) * | 2015-12-30 | 2017-07-06 | 深圳市大富科技股份有限公司 | Cavity filter |
| WO2017113166A1 (en) * | 2015-12-30 | 2017-07-06 | 深圳市大富科技股份有限公司 | Cavity filter, cover plate and pressing rivet threaded sleeve thereof |
| CN107615576A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | Cavity body filter, cover plate and its spiral tooth socket that presses |
| CN110574222A (en) * | 2017-05-02 | 2019-12-13 | 株式会社Kmw | Cavity type radio frequency filter |
| US11108121B2 (en) | 2017-05-02 | 2021-08-31 | Kmw Inc. | Cavity-type radio frequency filter |
| CN110574222B (en) * | 2017-05-02 | 2021-11-23 | 株式会社Kmw | Cavity type radio frequency filter |
| CN108555239A (en) * | 2018-05-31 | 2018-09-21 | 广西玉柴机器股份有限公司 | A kind of air cylinder of marine diesel engine body hand ejection core box and release method |
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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 Applicant 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 Applicant before: Shenzhen Tat Fook Technology Co., Ltd. |
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Application publication date: 20111123 |