CN103311749A - Radio frequency connector - Google Patents
Radio frequency connector Download PDFInfo
- Publication number
- CN103311749A CN103311749A CN2013101798391A CN201310179839A CN103311749A CN 103311749 A CN103311749 A CN 103311749A CN 2013101798391 A CN2013101798391 A CN 2013101798391A CN 201310179839 A CN201310179839 A CN 201310179839A CN 103311749 A CN103311749 A CN 103311749A
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- hollow tube
- radio frequency
- connector
- frequency connector
- spring
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Abstract
The invention discloses a radio frequency connector, which relates to the technical field of electric appliance devices and is used for improving the radio-frequency shielding effect and simultaneously reducing the required occupying space during the installation. The radio frequency connector comprises a hollow pipe body and an inner conductor sheathed in the hollow pipe body, wherein the inner conductor is fixed with the top end of the hollow pipe body through an insulator, the bottom part of the bottom end of the hollow pipe body is provided with an annular dovetail groove, and a spring is arranged in the dovetail groove in a clamping way.
Description
Technical field
The present invention relates to the appliance component technical field, particularly a kind of radio frequency connector.
Background technology
In mobile communication base station system, two kinds of technology of the general employing of the connection of radio-frequency channel between the power amplifier module in the Remote Radio Unit (Remote RF Unit, RRU) and the filter, 1, adopt the radio frequency connector of conventional screw-type firmly to connect; 2, adopt the radio frequency connector (BMA RF Coaxial connectors) of BMA model to guarantee that transmitting radio frequency signal, BMA are a kind of models in the microminiature radio frequency connector;
For hard connection of radio frequency connector of the screw-type of routine, there is obvious defective in this connected mode:
1), the space of installation needs is large; Because in the hard connectivity scenario of conventional screw-type, need inner wire, outer conductor all and the pcb board good contact, the transmission of guarantee radiofrequency signal, and possesses preferably screening effectiveness, for this reason need to be in each connector location about, at least arrange three screws, to guarantee corresponding index, this requirement occupies a large amount of device free spaces;
2), radio shielding weak effect; Because radio frequency connector traditional in the hard connectivity scenario of conventional screw-type need to be fixed on the pcb board by structural member, so the flatness to structural member and pcb board basal plane requires very high, the exceeding standard of flatness can not cooperatively interact and will cause radio frequency to be revealed, cause this junction shield effectiveness relatively poor, and when shield effectiveness is poor, the antijamming capability that this radio frequency connector also is described is also poor, can directly affect system index.
In sum, conventional screw-type hard link scheme is installed and is needed the space large in the prior art, and the shield effectiveness of radio frequency is poor.
Summary of the invention
The embodiment of the invention provides a kind of radio frequency connector, in order to improve the shield effectiveness of radio frequency, and the required space that takies when dwindling simultaneously its installation.
A kind of radio frequency connector that the embodiment of the invention provides, comprise hollow tube and be enclosed within the interior inner wire of described hollow tube, the top of described inner wire and hollow tube is fixed by insulator, the bottom of the bottom of described hollow tube is provided with the dovetail groove of annular, is arranged with spring in the described dovetail groove.
Embodiment of the invention radio frequency connector is provided with spring in the axial direction, like this with process that pcb board is connected in, even the flatness of pcb board is not high, still can guarantee well axially radio shielding effect; Sheathed jump ring outside hollow tube diametrically, because radio frequency connector generally also needs by stable being fixed on the pcb board of structural member ability, the jump ring that arranges can make radio frequency connector with the connection procedure of structural member in, even exist certain radial tolerance also can keep good radially radio shielding effect.
Description of drawings
The schematic perspective view of the radio frequency connector that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the exploded perspective view of Fig. 1.
Reference numeral
1-hollow tube 1.1-external screw thread 1.2-annular boss 1.3-dovetail groove
2-inner wire 2.1-internal thread 3-spring 4-jump ring
The 5-insulator
Embodiment
Because existing radio frequency connector is when adopting the hard connectivity scenario of screw, the space that not only need to take when installing is large, and the two the flatness that require to be used for the structural member of fixed RF connector and pcb board wants enough, so the requirement of processing technology is very high, if technique does not reach requirement, can cause the leakage of radio frequency, shield effectiveness is poor.
In order to address the above problem, the invention provides a kind of radio frequency connector, in order to improve the shield effectiveness of radio frequency, the required space that takies when dwindling simultaneously its installation.
The embodiment of the invention provides a kind of radio frequency connector, comprise hollow tube and be enclosed within the interior inner wire of described hollow tube, the top of described inner wire and hollow tube is fixed by insulator, the bottom of the bottom of described hollow tube is provided with the dovetail groove of annular, is arranged with spring in the described dovetail groove.
For the above embodiment of the present invention, at first need to prove, radio frequency connect the bottom, namely the bottom of hollow tube is the link with the power amplifier module pcb board, the top is the link with filter.So in the bottom of hollow tube the shield effectiveness that spring can improve radio frequency connector is set, the flatness of making in the bottom of pcb board or hollow tube does not reach in the situation of requirement, the space that joint produces can remedy by the elasticity of spring, to a certain degree block these spaces, can realize in the situation that axially exist certain tolerance still to possess certain screening ability; Arrange when the dovetail groove purpose is to a certain degree fixing spring and make again spring have certain activity space, can better bring into play the characteristic of self; The insulator that arranges has been fixed on inner wire when playing insulating effect with hollow tube.
On the basis of above-described embodiment, preferably, described inner wire, hollow tube and described spring are that concentric co-axial is set in together.
Realized in the axial direction preferably shield effectiveness by this radio frequency connector of above-described embodiment, more preferably, in the radial direction, if in the connection procedure of radio frequency connector and power amplifier module, interface exists in the poor situation of certain capacity, reveal for fear of the radio frequency that occurs radially, hollow tube outward also preferred cover the annular spring with radical elasticity is arranged, the diameter of described annular spring increases on the direction of the bottom of described middle tube body gradually the top of described hollow tube.
Because radio frequency connector is in the process that connects, the junction may appear fully because size is mismatched the radio frequency leak case that radial direction occurs, for fear of this situation, in the above-described embodiments, sheathed jump ring outside hollow tube, can make this radio frequency connector when being connected with other structure, even exist certain radial tolerance also can utilize the radial tension of jump ring that radio frequency connector is connected with other close structure, guarantee the shielding of radio frequency.
It should be noted that the shape of jump ring is not done concrete restriction can have tension force radially as long as guarantee jump ring.The below introduces two kinds of better jump ring shape embodiment.
Embodiment one
One end of the minor diameter of described jump ring is and the link of described hollow tube, and a large diameter end is the end that extends, and described extension end is interval with a plurality of grooves of splitting.
Embodiment two
One end of the minor diameter of described jump ring is and the link of described hollow tube, and a large diameter end is the end that extends, and described link is provided with a plurality of grooves of splitting with the equal interleaved of end that extends.
In above-mentioned two embodiment, all having taked to arrange the mode of splitting groove makes jump ring have radially tension force, difference is that one is in one-sided setting, one is in the bilateral setting, be understandable that, in real work, can determine as required to take the more bilateral setting of one-sided setting or result of use.
Because described inner wire generally is used for connecting the cable that is used for transmitting radio frequency signal, preferably, described inner wire is inner catheter, and an end of described inner catheter is provided with internal thread, realizes the introducing from power amplifier side radiofrequency signal.Can be M3(or other specification screw threads) internal thread.
Above-mentioned insulator generally plays fixation and the insulating effect of inner catheter and hollow tube, so usually, the material of described insulator is polytetrafluoroethylene.
The top of this radio frequency connector generally is connected with filter, and the top of described hollow tube generally is provided with external screw thread.Be threaded with the filter employing.
Usually, in order only to allow jump ring movable in a scope of hollow tube, described hollow tube axially spaced-apart is provided with two annular boss, and described jump ring is fastened between described two annular boss.Play certain fixation.
Be understandable that, in order to make radio frequency connector of the present invention can reach best radio shielding effect, take technical scheme that spring and jump ring are set simultaneously as optimum embodiment of the present invention, specifically as depicted in figs. 1 and 2, Fig. 1 is the stereogram of the embodiment of the invention, and Fig. 2 is the explosive view of Fig. 1:
In this optimum embodiment, inner wire 2 is fixed together by insulator 5 with hollow tube 1, bottom at hollow tube, an end that namely needs to contact with pcb board is provided with spring 3, because general hollow tube is tubulose, so spring is generally round spring, be arranged in the dovetail groove 1.3 of bottom; The hollow tube outer radial also overlaps by jump ring 4, by hollow tube two axial annular boss, 1.2 cards is set main, can not deviate from.The inboard of inner wire is provided with internal thread 2.1, and the top of hollow tube is provided with for the external screw thread 1.1 that is connected with filter.
In sum, embodiment of the invention radio frequency connector is provided with spring in the axial direction, like this with process that pcb board is connected in, even the flatness of pcb board is not high, still can guarantee well axially radio shielding effect; Sheathed jump ring outside hollow tube diametrically, because radio frequency connector generally also needs by stable being fixed on the pcb board of structural member ability, the jump ring that arranges can make radio frequency connector with the connection procedure of structural member in, even exist certain radial tolerance also can keep good radially radio shielding effect.This radio frequency connector axially and radially all is being provided with structure improveing the radio shielding effect of existing radio frequency connector, and execution mode is simple, is easy to be directly used in production.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. radio frequency connector, comprise hollow tube and be enclosed within the interior inner wire of described hollow tube, it is characterized in that, the top of described inner wire and hollow tube is fixed by insulator, the bottom of the bottom of described hollow tube is provided with the dovetail groove of annular, is arranged with spring in the described dovetail groove.
2. connector as claimed in claim 1 is characterized in that, described inner wire, hollow tube and described spring are that concentric co-axial is set in together.
3. connector as claimed in claim 2 is characterized in that, the outer also cover of described hollow tube has the annular spring with radical elasticity, and the diameter of described annular spring increases on the direction of the bottom of described middle tube body gradually the top of described hollow tube.
4. connector as claimed in claim 3 is characterized in that, an end of the minor diameter of described jump ring is and the link of described hollow tube, and a large diameter end is the end that extends, and described extension end is interval with a plurality of grooves of splitting.
5. connector as claimed in claim 3 is characterized in that, an end of the minor diameter of described jump ring is and the link of described hollow tube, and a large diameter end is the end that extends, and described link is provided with a plurality of grooves of splitting with the equal interleaved of end that extends.
6. such as claim 4 or 5 described connectors, it is characterized in that, described inner wire is inner catheter, and an end of described inner catheter is provided with internal thread.
7. connector as claimed in claim 6 is characterized in that, the material of described insulator is polytetrafluoroethylene.
8. connector as claimed in claim 7 is characterized in that, the top of described hollow tube is provided with external screw thread.
9. connector as claimed in claim 8 is characterized in that, described hollow tube axially spaced-apart is provided with two annular boss, and described jump ring is fastened between described two annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179839.1A CN103311749B (en) | 2013-05-15 | 2013-05-15 | A kind of radio frequency connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179839.1A CN103311749B (en) | 2013-05-15 | 2013-05-15 | A kind of radio frequency connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103311749A true CN103311749A (en) | 2013-09-18 |
| CN103311749B CN103311749B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310179839.1A Active CN103311749B (en) | 2013-05-15 | 2013-05-15 | A kind of radio frequency connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103311749B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071108A (en) * | 2015-08-12 | 2015-11-18 | 常州市诚天电子有限公司 | Waterproof circular electrical connector |
| CN107834321A (en) * | 2017-10-18 | 2018-03-23 | 江苏永沃铜业有限公司 | A kind of Portable easily-mountable radio-frequency connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494326A (en) * | 2008-01-22 | 2009-07-29 | 安德鲁有限责任公司 | Locking threaded connection coaxial connector |
| CN101916926A (en) * | 2009-01-29 | 2010-12-15 | 安德鲁有限责任公司 | The rotary connector of low pim |
| CN102005652A (en) * | 2008-11-24 | 2011-04-06 | 安德鲁有限责任公司 | Connector with retaining ring for coaxial cable and associated methods |
| CN102544893A (en) * | 2012-02-02 | 2012-07-04 | 中航光电科技股份有限公司 | Plug shell assembly and plug with same |
| CN202930653U (en) * | 2012-11-07 | 2013-05-08 | 宁波吉品科技股份有限公司 | Mining tri-coaxial connector socket |
-
2013
- 2013-05-15 CN CN201310179839.1A patent/CN103311749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494326A (en) * | 2008-01-22 | 2009-07-29 | 安德鲁有限责任公司 | Locking threaded connection coaxial connector |
| CN102005652A (en) * | 2008-11-24 | 2011-04-06 | 安德鲁有限责任公司 | Connector with retaining ring for coaxial cable and associated methods |
| CN101916926A (en) * | 2009-01-29 | 2010-12-15 | 安德鲁有限责任公司 | The rotary connector of low pim |
| CN102544893A (en) * | 2012-02-02 | 2012-07-04 | 中航光电科技股份有限公司 | Plug shell assembly and plug with same |
| CN202930653U (en) * | 2012-11-07 | 2013-05-08 | 宁波吉品科技股份有限公司 | Mining tri-coaxial connector socket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071108A (en) * | 2015-08-12 | 2015-11-18 | 常州市诚天电子有限公司 | Waterproof circular electrical connector |
| CN107834321A (en) * | 2017-10-18 | 2018-03-23 | 江苏永沃铜业有限公司 | A kind of Portable easily-mountable radio-frequency connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103311749B (en) | 2016-08-24 |
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