CN102881967A - Filter and isolation structure thereof - Google Patents
Filter and isolation structure thereof Download PDFInfo
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- CN102881967A CN102881967A CN2012103372098A CN201210337209A CN102881967A CN 102881967 A CN102881967 A CN 102881967A CN 2012103372098 A CN2012103372098 A CN 2012103372098A CN 201210337209 A CN201210337209 A CN 201210337209A CN 102881967 A CN102881967 A CN 102881967A
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- filter
- cavity body
- center
- body filter
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Abstract
The invention discloses a filter and an isolation structure thereof. The filter comprises a first cavity filter and a second cavity filter, wherein the isolation structure is arranged between the first cavity filter and the second cavity filter, and comprises a middle frame and sealing elements; the first cavity filter, the middle frame and the second cavity filter are connected in sequence; and the sealing elements are arranged between the first cavity filter and the middle frame as well as the second cavity filter and the middle frame respectively. Compared to the prior art, the isolation structure formed by the independent middle frame and the sealing elements is arranged between the first cavity filter and the second cavity filter; and the middle frame is connected with the first and the second cavity filters by the sealing elements, so that the sealing performance between the cavity filters is ensured, the detachability among the middle frame, the sealing elements and the cavity filters is achieved, and the sealing elements can be replaced flexibly; and furthermore, the filter has the advantages of convenience in mounting, low cost and the like.
Description
Technical field
The present invention relates to a kind of isolation structure of Filter and Filltering device.
Background technology
Filter is a kind of with useful signal undamped passing through as far as possible, the radio-frequency devices that unwanted signal is decayed as far as possible; Generally be located at signal transmitting and receiving device or the circuit part of communication equipment, to realize the selection effect of communication equipment signal.Now, along with the high speed development of mobile communication system, people are also more and more higher to the requirement of various wireless communication facility, and radiation of power is little, operating distance wants far away, and it is wide that coverage is wanted.This receiving sensitivity to system is had higher requirement.The antenna for base station that is determined by the characteristic of mobile communication system itself always receives the small-signal that portable terminal is launched.Therefore, base station equipment need to be amplified again processing to the small-signal that receives, and tower amplifier then is the important radio-frequency unit that carries out this processing.According to the computing formula of system's receiving sensitivity, the performance of tower amplifier is in critical role in whole receiving system, is one of key means of raising system receiving sensitivity.
But tower amplifier is to be installed on the steel tower, and operational environment is exceedingly odious, and because its status in whole receiving system is of crucial importance, therefore its water proof and dust proof performance is had very high requirement.This is also so that the water proof and dust proof of tower amplifier is designed to the important measurement requirement that the client usually can appointment.
Usually the tower amplifier structure of using in the prior art as shown in Figure 1, comprise the first cavity body filter 1 and the second cavity body filter 2, cooperate the conductive rubber 3 of respectively coating liquid state on the end face that contacts at described the first cavity body filter and/or the second cavity body filter, aim at again the rubber on described two cavity body filters, then by bolt two cavity body filters are locked.
In the research and practice process to prior art, the present inventor finds, in the prior art, owing to adopt liquid conductive rubber to spread upon on the cooperation contact end face of the first cavity body filter and/or the second cavity body filter, liquid conductive rubber just is attached on the described cavity body filter, when liquid conductive rubber is aging can not satisfy the water proof and dust proof index time, be difficult to should the liquid state conductive rubber take off from cavity body filter and again smear again new rubber, dismantle extremely inconveniently, and cause the waste of material.
Summary of the invention
The present invention provides a kind of isolation structure of Filter and Filltering device for solving the difficult defective of the dismounting of the rubber on the cavity body filter in the prior art.
For achieving the above object, the present invention is by the following technical solutions:
A kind of filter, comprise the first cavity body filter and the second cavity body filter, between described the first cavity body filter and the second cavity body filter, be provided with isolation structure, described isolation structure comprises center and seal, described the first cavity body filter, center and second cavity body filter of being connected connect successively, are respectively fitted with described seal between described the first cavity body filter and the described center and between described the second cavity body filter and the described center.
Two end faces of described center respectively are provided with a groove around described one week of center, and described seal is contained in respectively in the groove on described two end faces, and with described groove interference fit.
Described seal is silicon rubber material packing ring or polyurethane material packing ring.
Described seal is.
Described center is the silicon-aluminum material.
Described center is provided with at least one air-vent, is equipped with ventilated membrane or vent valve on the described air-vent.
Also be provided with at least two screwed holes on the described center, described filter is connected with external member by this screwed hole.
Respectively be provided with screwed hole in correspondence with each other on described center, described the first cavity body filter and the second cavity body filter, bolt is locked described the first cavity body filter, described center and described the second cavity body filter by described screwed hole.
A kind of isolation structure of filter comprises center and seal, respectively is provided with a groove around described one week of center at two end faces of described center, and described seal is contained in respectively in the groove on described two end faces, and described groove interference fit.
Described seal is silicon rubber material or polyurethane material packing ring.
Described center is the silicon-aluminum material, which is provided with at least one air-vent, is equipped with ventilated membrane or vent valve on the described air-vent.
The isolation structure of a kind of Filter and Filltering device of the present invention, with respect to above-mentioned prior art, the isolation structure that is comprised of independently center and seal is set between described the first cavity body filter and the second cavity body filter, and described center connects described the first cavity body filter and the second cavity body filter by described seal again.By this structural design, both can guarantee the sealing between the cavity body filter, reach the purpose of water proof and dust proof, realize again the detachability between center, seal and the cavity body filter, can change neatly seal, and have easy for installation, low cost and other advantages.
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 was done to introduce simply during the below will describe embodiment.
Fig. 1 is a kind of filter construction schematic diagram in the prior art;
Fig. 2 is the schematic diagram of the embodiment of the invention one;
Fig. 3 is the A-A profile of Fig. 2;
Fig. 4 is center and the seal Split type structure schematic diagram of the embodiment of the invention two isolation structures;
Fig. 5 is the schematic diagram of the embodiment of the invention two isolation structures.
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, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one provides a kind of filter, be illustrated in figure 3 as its floor map, A-A direction along Fig. 3 is cut the cutaway view that obtains as shown in Figure 4 open, comprise the first cavity body filter 1 and the second cavity body filter 2, between described the first cavity body filter and the second cavity body filter, be provided with isolation structure, described isolation structure comprises center 4 and seal 3, described the first cavity body filter, center be connected the second cavity body filter and connect successively, be respectively fitted with described seal between described the first cavity body filter and the described center and between described the second cavity body filter and the described center.An end that is described seal is connected with described center respectively, the other end then respectively with described the first cavity body filter be connected cavity body filter and be connected.
As shown in Figure 4 and Figure 5, two end faces of described center respectively are provided with a groove 5 around described one week of center, described seal one end is inserted respectively described groove, and be contained in respectively in the groove on described two end faces, described seal and described groove adopt interference fit, to reach the sealing effectiveness of best water proof and dust proof.
Described two grooves assemble with convenient two cavity body filters and isolation structure in correspondence with each other, improve efficiency of assembling; Certainly also can be designed as according to described two grooves of actual conditions not corresponding mutually, but the not corresponding complexity that can increase whole technique.
Preferably, described seal is the packing ring that silastic material or polyurethane material are made, and this silicon rubber has good elasticity, conductivity and corrosion resistance, can realize best sealing property; And described seal is the packing ring that polyurethane material is made, and cost performance is high, can reduce production costs.
Material that certain described seal also can be chosen other is such as natural gum, fluorubber, butylbenzene rosin etc.
Preferably, the center of present embodiment adopts silicon aluminum alloy material to make, and also can adopt in other embodiments general aluminum alloy materials such as albronze to make.
Owing to can generate heat in the filter running, work under normal temperature in order to guarantee filter, need carry out radiating treatment, therefore the first and/or second cavity body filter at filter arranges heat abstractor, in the present embodiment, on described center, also be provided with at least one air-vent, preferably on two of described center relative mouldings, respectively be provided with an air-vent, be equipped with ventilated membrane or vent valve on the described air-vent, this ventilated membrane or vent valve can only see through gas, and can not thoroughly intake and dust, both can reach the effect of exhaust heat radiation, again can water proof and dust proof.And at center air-vent is set, and can also dissipate as early as possible the hot gas around the seal washer, prevent that seal washer from affecting its sealing property because of expanded by heating.
Certainly, in order to guarantee better to breathe freely radiating effect, also can on each moulding of described center, one or more air-vent be set all.
In the prior art, in order to realize being connected of filter and external member, tend at the first cavity body filter and/or the second cavity body filter screwed hole is set, be connected with external member such as bracing frame by this screwed hole; Increased the complexity that cavity mold forms but directly at cavity screwed hole is set, prolonged production life cycle and increased the cost of product.Therefore, in the present embodiment, be provided with at least two screwed holes at described center, external member also is provided with corresponding screwed hole, then by screw or bolt support and center is locked, thereby realizes being connected of filter and support; Greatly shorten production life cycle and reduced cost.
In the present embodiment, respectively be provided with screwed hole in correspondence with each other on described center, the first cavity body filter and the second cavity body filter, be that described the first cavity body filter, center and the second cavity body filter are when cooperating, screwed hole on described the first cavity body filter, center and the second cavity body filter communicates, again bolt is inserted described screwed hole, so that described the first cavity body filter, described center and described the second cavity body filter are locked; Utilize bolt-locking to have the advantage of convenient disassembly.In other embodiments, also can adopt the welding or other are fastenedly connected mode.
When assembling, at first described silicone rubber gasket is packed in the groove of described center, again described the first cavity body filter, the center that silicone rubber gasket is housed and the screwed hole on the second cavity body filter are docked, then the order by the first cavity body filter, the center that silicone rubber gasket is housed and the second cavity body filter cooperates, at last bolt is inserted described screwed hole, fix with nut check.
A kind of filter of the present invention, with respect to prior art, the isolation structure that is comprised of independently center and seal is set between described the first cavity body filter and the second cavity body filter, and described center connects described the first cavity body filter and the second cavity body filter by described seal again.By this structural design, both can guarantee the sealing between the cavity body filter, reach the purpose of water proof and dust proof, realize again the detachability between center, seal and the cavity body filter, can change neatly seal, and have easy for installation, low cost and other advantages.
Embodiment two provides a kind of isolation structure of filter, as shown in Figure 4 and Figure 5, comprise center 4 and seal 3, two end faces at described center respectively are provided with a groove 5 around described one week of center, described seal one end is inserted respectively in the groove that also is contained in respectively in the described groove on described two end faces, and described groove interference fit.
Described two grooves assemble with convenient two cavity body filters and isolation structure in correspondence with each other, improve efficiency of assembling; Certainly also can be designed as according to described two grooves of actual conditions not corresponding mutually, but the not corresponding complexity that can increase whole technique.
Preferably, described seal is the packing ring that silastic material or polyurethane material are made, and silicon rubber has good elasticity, conductivity and corrosion resistance, can realize best sealing property; And the polyurethane cost performance is high, can reduce production costs; The material that can certainly choose other is such as natural gum, fluorubber, butylbenzene rosin etc.
Preferably, described center is the silicon-aluminum material in the present embodiment, also can adopt in other embodiments general aluminum alloy material such as albronze to make.Also be provided with air-vent on the described center, be equipped with ventilated membrane or vent valve on the described air-vent, can carry out quick heat radiating to the hot gas around the described seal washer well, prevent that seal washer is heated rear expansion and affects its sealing property.
The isolation structure of a kind of filter of present embodiment, with respect to prior art, the isolation structure that is comprised of independently center and seal is set between described the first cavity body filter and the second cavity body filter, and described center connects described the first cavity body filter and the second cavity body filter by described seal again.By this structural design, both can guarantee the sealing between the cavity body filter, reach the purpose of water proof and dust proof, realize again the detachability between center, seal and the cavity body filter, can change neatly seal, and have easy for installation, low cost and other advantages.
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 those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. filter, it is characterized in that: comprise the first cavity body filter and the second cavity body filter, between described the first cavity body filter and the second cavity body filter, be provided with isolation structure, described isolation structure comprises center and seal, described the first cavity body filter, center and second cavity body filter of being connected connect successively, are respectively fitted with described seal between described the first cavity body filter and the described center and between described the second cavity body filter and the described center.
2. filter according to claim 1, it is characterized in that: two end faces of described center respectively are provided with a groove around described one week of center, described seal is contained in respectively in the groove on described two end faces, and with described groove interference fit.
3. filter according to claim 1, it is characterized in that: described seal is silicon rubber material packing ring or polyurethane material packing ring.
4. filter according to claim 1, it is characterized in that: described center is the silicon-aluminum material.
5. filter according to claim 1, it is characterized in that: described center is provided with at least one air-vent, is equipped with ventilated membrane or vent valve on the described air-vent.
6. filter according to claim 4, it is characterized in that: also be provided with at least two screwed holes on the described center, described filter is connected with external member by this screwed hole.
7. filter according to claim 1, it is characterized in that: respectively be provided with screwed hole in correspondence with each other on described center, described the first cavity body filter and the second cavity body filter, bolt is locked described the first cavity body filter, described center and described the second cavity body filter by described screwed hole.
8. the isolation structure of a filter, it is characterized in that: comprise center and seal, two end faces at described center respectively are provided with a groove around described one week of center, and described seal is contained in respectively in the groove on described two end faces, and with described groove interference fit.
9. the isolation structure of filter according to claim 8, it is characterized in that: described seal is silicon rubber material or polyurethane material packing ring.
10. the isolation structure of filter according to claim 8, it is characterized in that: described center is the silicon-aluminum material, which is provided with at least one air-vent, is equipped with ventilated membrane or vent valve on the described air-vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103372098A CN102881967A (en) | 2012-09-13 | 2012-09-13 | Filter and isolation structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103372098A CN102881967A (en) | 2012-09-13 | 2012-09-13 | Filter and isolation structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102881967A true CN102881967A (en) | 2013-01-16 |
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| CN2012103372098A Pending CN102881967A (en) | 2012-09-13 | 2012-09-13 | Filter and isolation structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613855A (en) * | 2019-02-25 | 2020-09-01 | 上海诺基亚贝尔股份有限公司 | Package for electronic assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201797031U (en) * | 2010-04-26 | 2011-04-13 | 南京斯坦德通信工程有限公司 | Double-frequency combiner |
| CN202203396U (en) * | 2011-07-15 | 2012-04-25 | 凯镭思通讯设备（上海）有限公司 | Sealing device for joint of wave filter and fitting surface of plastic spraying cavity |
| CN202817147U (en) * | 2012-09-13 | 2013-03-20 | 苏州市大富通信技术有限公司 | Filter and isolation structure thereof |
-
2012
- 2012-09-13 CN CN2012103372098A patent/CN102881967A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201797031U (en) * | 2010-04-26 | 2011-04-13 | 南京斯坦德通信工程有限公司 | Double-frequency combiner |
| CN202203396U (en) * | 2011-07-15 | 2012-04-25 | 凯镭思通讯设备（上海）有限公司 | Sealing device for joint of wave filter and fitting surface of plastic spraying cavity |
| CN202817147U (en) * | 2012-09-13 | 2013-03-20 | 苏州市大富通信技术有限公司 | Filter and isolation structure thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613855A (en) * | 2019-02-25 | 2020-09-01 | 上海诺基亚贝尔股份有限公司 | Package for electronic assembly |
| CN111613855B (en) * | 2019-02-25 | 2021-10-08 | 上海诺基亚贝尔股份有限公司 | Packaging assembly for electronic assembly |
| EP3700309B1 (en) * | 2019-02-25 | 2023-07-05 | Nokia Shanghai Bell Co., Ltd. | Enclosure for electronic components |
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Application publication date: 20130116 |