CN102569957A - Indoor multi-cavity filter - Google Patents
Indoor multi-cavity filter Download PDFInfo
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- CN102569957A CN102569957A CN2012100268181A CN201210026818A CN102569957A CN 102569957 A CN102569957 A CN 102569957A CN 2012100268181 A CN2012100268181 A CN 2012100268181A CN 201210026818 A CN201210026818 A CN 201210026818A CN 102569957 A CN102569957 A CN 102569957A
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- cavity
- radiating plate
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- resonant rod
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Abstract
The invention relates to an indoor multi-cavity filter. The indoor multi-cavity filter comprises a cavity and a cover plate arranged on the cavity, wherein a plurality of resonant cavities are arranged in the cavity; a resonant rod is arranged in each resonant cavity; a tuning screw rod is arranged on the cover plate; the cavity is made of a plastic material; a metal radiating plate is arranged on the outer surface of the bottom of the cavity; the bottom of each resonant rod is connected with the metal radiating plate; the bottom of each resonant rod is connected with a metal heat-conducting piece; the bottom of each metal heat-conducting piece is connected with the metal radiating plate; the resonant rod and the metal heat-conducting pieces are integrated; each metal heat-conducting piece penetrates through the bottom surface of the cavity and is connected with the metal radiating plate through a connecting piece; and the connecting piece penetrates through the metal radiating plate and is connected with the metal heat-conducting pieces from bottom to top. The indoor multi-cavity filter effectively reduces the heat accumulated in the plastic cavity, can keep high electric properties, and is easy to assemble and manufacture, and the production cost of the filter is greatly reduced.
Description
Technical field
The invention belongs to the communications industry with electric Element Technology field, be specifically related to a kind of indoor multi-cavity fluid filter.
Background technology
Usually adopt the interference signal or the noise signal filtering of cavity body filter in the communication system with particular frequency range; Existing cavity body filter generally adopts precious metals such as aluminium, copper to make, not only weight big, be unfavorable for installing, dismounting and transportation, and because the price of precious metal is higher; Cause the cost of cavity body filter higher; Therefore, each tame filter manufacturer all constantly opens up new technology and new technology dropping into great effort, to alleviate the enterprise production cost.Fall in this programme various; The scheme that adopts plastic material to make filter cavity is a kind of relatively reasonable plan; The relative metal filter cavity of this scheme; Because plastic chamber has lighter weight, stronger rigid nature, be not vulnerable to the influence that ambient temperature changes, and more and more receive the attention of each tame filter manufacturer.
Yet the heat-conductive characteristic of plastics is than metal difference, and in the cavity body filter use, accumulating in the inner heat of plastic chamber can not in time distribute, and can cause local temperature increasingly high and indoor multi-cavity fluid filter allomeric function was lost efficacy; Especially for high power filter; More heat transfer can be gathered at short notice in plastic chamber inside, and can not in time distribute, and causes the electricity function index of indoor multi-cavity fluid filter to descend; Can not satisfy the demand of work; In the existing indoor multi-cavity fluid filter, can only in the filter of small frequency very, use plastic chamber, powerful slightly filter; The scheme that at all can't adopt plastic chamber is to reduce the pressure of enterprise production cost, and the heat dissipation problem of plastic chamber is seriously restricting the development process of cavity body filter all the time.
Summary of the invention
The purpose of this invention is to provide a kind of heat dissipation problem that can not only solve plastic filter, reduce the production cost of filter, and the indoor multi-cavity fluid filter with good electric property.
For realizing above-mentioned purpose, a kind of indoor multi-cavity fluid filter of the present invention's design comprises cavity, is arranged on the cover plate on the cavity; Be provided with a plurality of resonant cavitys in the said cavity, resonant rod all is installed in each resonant cavity, tuning screw rod is installed on the cover plate; Said cavity is a plastic material, and the bottom outer surface of said cavity is provided with metallic heat radiating plate, and the bottom of every resonant rod all is connected with metallic heat radiating plate; The bottom of said every resonant rod is connected with metal heat-conducting spare; The bottom of said metal heat-conducting spare is connected with metallic heat radiating plate, and said resonant rod and metal heat-conducting spare are one-body molded, and the bottom surface that said metal heat-conducting spare passes cavity is connected with metallic heat radiating plate; Said metal heat-conducting spare is connected with metallic heat radiating plate through connector, and said connector passes metallic heat radiating plate from the bottom up and is connected with metal heat-conducting spare.。
In technique scheme, the bottom of said resonant rod is provided with a loop boss.
In technique scheme, said metallic heat radiating plate is a whole piece.
The present inventor finds following rule through experiment constantly; In the cavity body filter course of work, the main origin of heat of inside cavity is in resonant rod, based on this rule; The present invention's metallic heat radiating plate that the bottom of resonant rod is outside with being positioned at plastic chamber is connected; Utilize the high characteristic of metal heat-conducting rate, bottom through resonant rod and the metal heat-conducting spare between the metallic heat radiating plate most of heat that plastic chamber is inner conducts in metallic heat radiating plate, and is dispersed into the space of plastic chamber exterior circumferential by metallic heat radiating plate; Effectively reduce the heat of plastic chamber accumulated inside; Make when in filter, adopting plastic chamber, can keep electric property well, can significantly improve the power capacity of plastic chamber filter; Metal heat-conducting spare of the present invention is simple with structure, the connected mode of metallic heat radiating plate and resonant rod simultaneously, is easy to make, and also is easy to assembling, but also greatly reduces the production cost of filter.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a resonant rod structural representation of the present invention;
Among the figure: 1-cavity, 2-cover plate, 3-resonant cavity, 4-resonant rod, the tuning screw rod of 5-, 6-metallic heat radiating plate, 7-metal heat-conducting spare, 8-annular boss, 9-step, 10-screw.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description:
Overall plan of the present invention is; Bottom outer surface at cavity is provided with metallic heat radiating plate, the bottom of resonant rod is connected with metallic heat radiating plate, through the bigger metallic heat radiating plate of area; The heat that plastic chamber is inner is dispersed into the cavity outside, reduces the temperature inside of plastic chamber.
Indoor multi-cavity fluid filter as shown in Figure 1 comprises cavity 1, is arranged on the cover plate 2 on the cavity 1; Be provided with a plurality of resonant cavitys 3 in the cavity 1, in each resonant cavity 3 resonant rod 4 be installed all, cover plate 2 all is equipped with tuning screw rod 5 with last resonant rod 4 corresponding positions; In the resonant rod 4 is hollow-core construction; Tuning screw rod 5 faces the hollow of resonant rod 4, can be deep into the degree of depth in the resonant rod 4 through regulating tuning screw rod 5, regulates the operating frequency of filter.Cavity 1 is a plastic material; Cover plate 2 resonant bars 4 and tuning screw rod 5 are metal material and make; The bottom outer surface of cavity 1 is provided with metallic heat radiating plate 6; The bottom of every resonant rod 3 all is connected with metallic heat radiating plate 6, and connector passes metallic heat radiating plate 6 from the bottom up and is connected with metal heat-conducting spare 7.
Consult shown in Figure 2ly, the bottom of resonant rod 4 is connected with metal heat-conducting spare 7, and resonant rod 3 is one-body molded with metal heat-conducting spare 7, and metallic heat radiating plate 6 is a whole piece.The external diameter of metal heat-conducting spare 7 is less than resonant rod 3; Metal heat-conducting spare 7 constitutes step 9 with the junction of resonant rod 3; The bottom surface of step 9 contacts with the upper surface of plastic chamber 1 bottom surface; The bottom surface that metal heat-conducting spare 7 passes cavity 1 contacts with metallic heat radiating plate 6; The bottom surface of cavity 1 is provided with through hole with every resonant rod 4 corresponding positions, and metal heat-conducting spare 7 passes through hole and contacts with metallic heat radiating plate 6, metallic heat radiating plate 4 is connected with metal heat-conducting spare 5, resonant rod 4 and is fixed together through screw 10.One loop boss 8 is set in the bottom of resonant rod 4; The upper surface of the lower end of resonant rod 4 and the bottom of cavity 1 contacts with annulus through annular boss 8; Under the rough situation of upper surface of cavity 1 bottom surface, resonant rod 4 is contacted with the upper surface of cavity 1 bottom surface, reduced the manufacturing technique requirent of cavity 1; Reduce production cost, be particularly suitable for indoor use.
Because a block of metal heating panel 6 is set on cavity 1 bottom surface, will every resonant rod 4 pass through metal heat-conducting spare 7 and be connected with metallic heat radiating plate 6, the area of metallic heat radiating plate 6 is bigger, and rapid heat dissipation can reduce the temperature inside of plastic chamber well.
Metallic heat radiating plate 4 of the present invention can use heat conductivility aluminium material preferably with metal heat-conducting spare 5.
The content of not doing in this specification to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (3)
1. indoor multi-cavity fluid filter; Comprise cavity (1), be arranged on the cover plate (2) on the cavity (1); Be provided with a plurality of resonant cavitys (3) in the said cavity (1), resonant rod (4) all is installed in each resonant cavity (3), tuning screw rod (5) is installed on the cover plate (2); Said cavity (1) is a plastic material; It is characterized in that: the bottom outer surface of said cavity (1) is provided with metallic heat radiating plate (6), and the bottom of every resonant rod (3) all is connected with metallic heat radiating plate (6), and the bottom of said every resonant rod (3) is connected with metal heat-conducting spare (7); The bottom of said metal heat-conducting spare (7) is connected with metallic heat radiating plate (6); Resonant rod (3) and metal heat-conducting spare (7) are one-body molded, and the underrun connector that said metal heat-conducting spare (7) passes cavity (1) is connected with metallic heat radiating plate (6), and said connector is connected from passing to pass with metal heat-conducting spare (7) bottom the metallic heat radiating plate (6).
2. indoor multi-cavity fluid filter according to claim 1 is characterized in that: the bottom of said resonant rod (3) is provided with a loop boss (8).
3. indoor multi-cavity fluid filter according to claim 1 and 2 is characterized in that: said metallic heat radiating plate (6) is a whole piece.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100268181A CN102569957A (en) | 2012-02-08 | 2012-02-08 | Indoor multi-cavity filter |
| PCT/CN2012/078492 WO2013117073A1 (en) | 2012-02-08 | 2012-07-11 | Cavity filter |
| PCT/CN2012/078501 WO2013117074A1 (en) | 2012-02-08 | 2012-07-11 | High-frequency band high-power plastic cavity filter |
| PCT/CN2012/078474 WO2013117072A1 (en) | 2012-02-08 | 2012-07-11 | Mid-frequency band high-power cavity filter |
| PCT/CN2012/078527 WO2013117075A1 (en) | 2012-02-08 | 2012-07-12 | Indoor-use multi-cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100268181A CN102569957A (en) | 2012-02-08 | 2012-02-08 | Indoor multi-cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102569957A true CN102569957A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100268181A Pending CN102569957A (en) | 2012-02-08 | 2012-02-08 | Indoor multi-cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102569957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013117075A1 (en) * | 2012-02-08 | 2013-08-15 | 武汉凡谷电子技术股份有限公司 | Indoor-use multi-cavity filter |
| CN103346370A (en) * | 2013-07-15 | 2013-10-09 | 武汉凡谷电子技术股份有限公司 | Combined type filter cavity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044730A (en) * | 2010-12-06 | 2011-05-04 | 武汉凡谷电子技术股份有限公司 | Transverse magnetic (TM) mode dielectric filter |
| EP2323214A1 (en) * | 2009-11-16 | 2011-05-18 | Alcatel Lucent | Device for filtering radio frequency signals, coaxial air cavity filter, and manufacturing method thereof |
| CN202058842U (en) * | 2011-04-22 | 2011-11-30 | 武汉凡谷电子技术股份有限公司 | Cold-heading resonance rod |
-
2012
- 2012-02-08 CN CN2012100268181A patent/CN102569957A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2323214A1 (en) * | 2009-11-16 | 2011-05-18 | Alcatel Lucent | Device for filtering radio frequency signals, coaxial air cavity filter, and manufacturing method thereof |
| CN102044730A (en) * | 2010-12-06 | 2011-05-04 | 武汉凡谷电子技术股份有限公司 | Transverse magnetic (TM) mode dielectric filter |
| CN202058842U (en) * | 2011-04-22 | 2011-11-30 | 武汉凡谷电子技术股份有限公司 | Cold-heading resonance rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013117075A1 (en) * | 2012-02-08 | 2013-08-15 | 武汉凡谷电子技术股份有限公司 | Indoor-use multi-cavity filter |
| CN103346370A (en) * | 2013-07-15 | 2013-10-09 | 武汉凡谷电子技术股份有限公司 | Combined type filter cavity |
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Application publication date: 20120711 |