CN101699670A - Female joint of coaxial cable connector - Google Patents
Female joint of coaxial cable connector Download PDFInfo
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- CN101699670A CN101699670A CN200910209646A CN200910209646A CN101699670A CN 101699670 A CN101699670 A CN 101699670A CN 200910209646 A CN200910209646 A CN 200910209646A CN 200910209646 A CN200910209646 A CN 200910209646A CN 101699670 A CN101699670 A CN 101699670A
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Abstract
The invention discloses a female joint of a coaxial cable connector, which comprises a central conductor, an insulator and an outer conductor; the central conductor is provided with a concave jack and a deep hole used for inserting an inner conductor of coaxial cable; the insulator is a circular ring with a through hole in the center; the external diameter of the front end part of the insulator is less than the external diameter of the rear end part; the outer conductor is divided into a front section, a middle section and a rear section; the front section is provided with an annular socket facing towards the front end; the internal diameter of the rear section is used for inserting the coaxial cable; the internal diameter of the front section is equal to the internal diameter of the middle section and matched with the external diameter of the rear end part of the insulator; the internal surface of the middle section is transited to the internal surface of the rear section through a first step; the internal diameter of the through hole of the insulator is matched with the external diameter of the concave jack of the central conductor; the central conductor can be integrally inserted into the through hole of the insulator; and the outer circumference at the rear end part of the central conductor is provided with a contractive compensating groove. The female joint meets the conventional technical standards; the central conductor is wholly inserted into the through hole of the insulator from the rear end and is stably fixed, so, the female joint is more convenient to assemble.
Description
Technical field
The present invention relates to the cable connector technology, especially relate to a kind of female connector of coaxial cable connector.
Background technology
Coaxial cable is widely used in various signals and transmits the especially occasion of video signal transmission, needs effective connection between the different cables, so that effectively transmitted signal is avoided the decay of signal.For this reason, used the jockey of multiple coaxial cable in the prior art.
Cross-sectional schematic vertically after a kind of male connector of coaxial cable connector of prior art as shown in Figure 1 and female joint are pegged graft, this figure only illustrates the part relevant with linkage interface.In male joint comprises, in, outer three layers cirque structure, its nexine is the center conductor 21 of column, is insulator 22 around the intermediate layer of center conductor 21, is in outer fieldly to be outer conductor 23, and is socketed in the outer nut 24 on the outer conductor 23.In female joint comprises, in, outer three layers cirque structure, its nexine is a center conductor 11, is insulator 12 around the intermediate layer of center conductor 11, is in the outer field outer conductor 13 that is.Center conductor 11 be used for pegging graft with the center conductor of male joint and with the coax cable center conductor termination, this center conductor 11 is divided into leading portion 111 and back segment 112, leading portion 111 has recessed jack, is used for and the male joint inserting; The step place that forms after back segment 112 and leading portion 111 insertings is provided with insulator 12.
Though above-mentioned connector male joint can reach the effect of normal connection, center conductor 11 adopts independently two-part structure, and length is longer, needs two insulators to cooperate (insulator 12 before only illustrating among the figure) accordingly.
The inventor is 200710194974.8 at application number, and denomination of invention has been carried out structural improvement in the Chinese invention patent application of " a kind of female connector of coaxial cable connector " to above-mentioned female joint, all is incorporated herein by reference at this.Fig. 2 is that application number is the cross-sectional schematic vertically of the female connector of coaxial cable connector shown in 200710194974.8 the application for a patent for invention prospectus.(for convenience of description, below the direction with the grafting interface of this male joint and female joint is called front end, and an end of termination coaxial cable is called the rear end) as shown in Figure 2:
This female connector of coaxial cable connector is a cirque structure from the inside to surface, comprises three layers from the inside to surface, is respectively center conductor 31, insulator 32, outer conductor 33.
The center conductor 31 of described nexine is a column, and its front end has recessed jack 311, and rear end face has the axially extending bore 312 of internal diameter and coax cable center conductor external diameter coupling; First step 313 transition of shrinking by internal diameter between the recessed jack 311 of front end and this axially extending bore 312, this second step 313 has the edge that covers described axially extending bore 312 outlet edges that stretches out to internal diameter direction, as the locating surface of coax cable center conductor front end face.The second step 314 that also has contraction on the external diameter of through hole position makes the external diameter of this center conductor 31 dwindle at the rear portion.The female jack 311 is for opening valve structure, so that it has certain elasticity, the taper that can insert male joint is protruded.Described axially extending bore 312 is used for inserting forward from the rear coax cable center conductor.The center conductor that rolls coaxial cable among the figure away from has inserted in the axially extending bore of this center conductor 31.Described insulator 32 is circular, and the internal diameter of its central through hole and the external diameter of coax cable center conductor are complementary.The front end face center of this insulator 32 has round boss 321, and these round boss 321 external diameters and described center conductor 31 rear end face external diameters are basic identical.Can also offer one or several axial blind holes on this insulator 32 as required, these blind holes are the hole by way of compensation, realizes the compensation of electrical property.These compensate openings also can adopt the compensation annular groove of axial setting to replace.Described outer conductor 33 is circular, and some steps are all arranged on its internal diameter and the external diameter, is used to realize the compensation of various limit functions and electrical property.This outer conductor 33 can be divided into leading portion 331, stage casing 332 and back segment 333 from front to back.Described leading portion 331 extreme direction forward is an annular spigot, comprises inner ring 3311 and outer ring 3312, and both make this section be " U " type on axial cross section in the combination of the rear portion of leading portion 331.Radial clearance between described inner ring 3311 and the outer ring 3312 is enough to insert the thin cylinder of male joint front end, and the outside of described outer ring 3312 has external screw thread 3313, and this external screw thread matches with the outer nut of male joint.Have very little the 3rd step 3314, the three steps 3314 on the internal diameter of described inner ring 3311 and make inner ring 3311 anterior diameters be slightly larger than the rear portion, this female joint and male joint difference are joined after, obtain the coupling of better electrical property, signal obtains better transmission.
Leading portion 331 carries out the transition to the less stage casing of internal diameter 332 by the 4th inside step 3321 on internal diameter, the 4th step 3321 has the edge that stretches out and cover internal diameter front end exit edge, stage casing to internal diameter direction, and the rear end face at this edge forms the axial locating surface to described insulator 32 front end faces.The internal diameter in described stage casing 332 and the outer radial of described insulator coupling, its axial length also adapt with the length of described insulator 32.In addition, the appropriate location on the internal diameter in stage casing 332 can also be provided with hangnail mechanism (not shown), this hangnail structure domatic towards the rear end, step surface is towards front end, after insulator 32 was filled in, this hangnail mechanism can produce barrier effect to it, avoided insulator 32 to come off.The external diameter of leading portion 331 carries out the transition on the external diameter in stage casing 332 by the incline bench 3322 of inside contraction, and the external diameter in stage casing 332 is provided with spanner card face 3323.
The internal conical surface 3332 that described stage casing 332 enlarges backward by the 5th step 3331 and internal diameter on internal diameter carries out the transition to the internal diameter of back segment 333, on the external diameter in described stage casing 332 then with internal diameter on internal conical surface 3332 beginning axially on the roughly the same position, carry out the transition to the external diameter of back segment 333 with the understanding step 333 that shrinks.Has the horn mouth 3334 that play the guiding role on the terminal internal diameter of described back segment 333.Also have former and later two very shallow annular grooves 3335 on the external diameter of described back segment 333.The internal diameter of this back segment 333 is enough to hold the outer conductor insertion of coaxial cable, and leaves a fixed gap so that scolder infiltrates.The effect that 3332 of described internal conical surfaces play guiding and shrink coaxial cable outer conductor.
Female connector of coaxial cable connector shown in Figure 2, transform the center conductor two joint segmentation connected structures of the female joint shown in Fig. 1 as a part, reduced the rear portion cylinder length of center conductor, correspondingly, only need want an insulator, outer conductor also correspondingly shortens.Whole female joint volume significantly reduces, and has saved material, and owing to the minimizing of medium sudden change, electrical property obtains large increase simultaneously.
But the center conductor 31 of the female joint after the inventor finds to improve is only fixed by the coax cable center conductor of inserting wherein, need weld in use.But welding is difficult to realize, the axiality of heating operation complexity and center conductor and outer conductor is difficult to guarantee simultaneously, therefore electrical property is suddenly bad, wayward, not can manufacture, center conductor is easy to be subjected to the play of coax cable center conductor and is subjected to displacement in addition, causes the transmission of signal bad.Therefore be necessary further to improve.
Summary of the invention
The problems referred to above in view of prior art, the objective of the invention is on the basis of the previous female connector of coaxial cable connector that proposes of inventor, further provide a kind of center conductor to fix the female connector of coaxial cable connector of firm, easy for installation and satisfied connection standard.
To achieve these goals, the invention provides a kind of female connector of coaxial cable connector, for the lining, in, outer three layers cirque structure, be respectively center conductor, insulator, the outer conductor of column from the inside to surface, the fore-end of described center conductor has recessed jack, have the deep hole that is used for inserting inner conductor (be " coax cable center conductor " of background technology, in order to express easily, below all change " inner conductor " into) on the end face of rear end part; Described insulator is the annulus that the center has through hole, and the external diameter of the fore-end of described insulator is less than the external diameter of rear end part; Described outer conductor is divided into leading portion from front to back, stage casing and back segment, described leading portion has the annular spigot towards front end, this annular spigot is used to insert the thin cylinder of coaxial cable male joint front end, described back segment internal diameter is used to insert coaxial cable, the internal diameter of described leading portion identical with the internal diameter in described stage casing and with the external diameter coupling of the rear end part of described insulator, the inner surface in described stage casing carries out the transition to the inner surface of described back segment by first step, described first step is used for the described insulator of axial location, the external diameter coupling of the internal diameter of described insulator and the recessed jack of described center conductor, described center conductor can wholely insert in the through hole of described insulator, has the compensating tank of contraction on the periphery of the rear end part of described center conductor.
As preferably, the rear end part of described insulator has the back taper groove coaxial with the through hole of described insulator.
As preferably, offer the through hole that is communicated with the deep hole of described center conductor on the rear end part sidewall of described center conductor.
As preferably, described insulator is provided with one or more axial blind holes, perhaps is provided with the annular groove that one or more axially is provided with.
As preferably, the inner headed face in the stage casing of described outer conductor is provided with and prevents the first protruding thorn structure that gets loose.
As preferably, the periphery of described center conductor is provided with the second protruding thorn mechanism that prevents to get loose.
As preferably, the periphery in the stage casing of described outer conductor is by the 3rd step transition that shrinks or the amplify back segment to described outer conductor.
Female connector of coaxial cable connector of the present invention, when satisfying existing technical standard, all technique effects that possess the previous female connector of coaxial cable connector that proposes of inventor, and its insulator can directly be filled in from inserted terminal, center conductor can insert in the through hole of insulator fully and secure effectively reduces the center conductor vibration displacement that the cable vibrations bring.Center conductor welding back only need be inserted from the rear end can be more firm, assembles more convenient.Owing to do not influence the prior art standard, therefore can be connected with the male joint of various constructed standards of the prior art, have good versatility.
Description of drawings
Fig. 1 is a cross-sectional schematic vertically after a kind of male connector of coaxial cable connector of prior art and female joint are pegged graft.
Fig. 2 is that application number is the cross-sectional schematic vertically of the female connector of coaxial cable connector shown in 200710194974.8 the application for a patent for invention prospectus.
Fig. 3 is the cross-sectional schematic vertically (part relevant with linkage interface only is shown) of the female connector of coaxial cable connector of the embodiment of the invention one.
Fig. 4 is the cross-sectional schematic vertically (part relevant with linkage interface only is shown) of the female connector of coaxial cable connector of the embodiment of the invention two.
Fig. 5 is the partial enlarged drawing of Fig. 4.
Fig. 6 is a cross-sectional schematic vertically after a kind of male joint of the female connector of coaxial cable connector of the embodiment of the invention two and prior art is pegged graft.
Fig. 7 is the cross-sectional schematic vertically (part relevant with linkage interface only is shown) of the female connector of coaxial cable connector of the embodiment of the invention three.
Embodiment
Describe the embodiment of the invention in detail below in conjunction with accompanying drawing.
Following examples are introduced a kind of 7/16 type female connector of coaxial cable connector that is applied to, and satisfy worldwide the extensively male and female interworking interface of DIN 47223 standards of issue.But the basic structure that proposes in the present embodiment is improved and can be widely used on the coaxial cable connector of various standards.For convenience of description, below the direction with the grafting interface of this male joint and female joint is called front end, and an end of termination coaxial cable is called the rear end.
As shown in Figure 3, the female connector of coaxial cable connector of the embodiment of the invention one be the lining, in, outer three layers cirque structure, be respectively center conductor 41, insulator 42, the outer conductor 43 of column from the inside to surface, the fore-end of described center conductor 41 has recessed jack 411, has the deep hole 412 that is used to insert inner conductor on the end face of rear end part; Described insulator 42 has the circular of through hole for the center, and the external diameter of the fore-end 421 of described insulator 42 is less than the external diameter of rear end part; Described outer conductor 43 is divided into leading portion 431 from front to back, stage casing 432 and back segment 433, leading portion 431 has the annular spigot towards front end, this annular spigot is used to insert the thin cylinder of coaxial cable male joint front end, described back segment 433 internal diameters are used to insert coaxial cable, the internal diameter in the internal diameter of described leading portion 431 and described stage casing 432 identical and with the external diameter coupling of described insulator 42 rear end parts, the inner surface in described stage casing 432 carries out the transition to the inner surface of described back segment 433 by first step 401, the external diameter coupling of the internal diameter of the through hole of described insulator 42 and described center conductor 41, described center conductor 41 can wholely insert in the through hole of described insulator 42.Keep the front end face of described insulator 42 concordant with the front end face of the fore-end 421 of described center conductor 41.The compensating tank 4122 that has contraction on the periphery of the rear end part 412 of described center conductor 41.
Wherein, the length of the fore-end 421 of insulator 42 and thickness are according to the technical standard of reality and electrical compensation needs and definite.
On the basis of embodiment one, in order to optimize performance, can also improve, as shown in Figure 4 and Figure 5, can strong fix and do not get loose in order to make that center conductor 41 is inserted in the through hole of described insulator 42, the periphery of described center conductor 41 is provided with the second protruding thorn mechanism 4121 that prevents to get loose, and it is domatic towards front end, and step surface is towards the rear end.Certainly, the second protruding structure of stinging mechanism 4121 is not unique, as long as make described center conductor 41 not get loose with described insulator 42.
Described insulator rear end has the back taper groove 423 coaxial with the through hole of described insulator, and its effect is that scolding tin flows into when preventing the rear end of male joint and coaxial cable welding.For the ease of processing, the described two ends, inclined-plane of horn structure have annulus 4321 and the annulus 4322 that is provided with vertically respectively.
For center of reduction solderable conductor termination process, offer the through hole 413 that is communicated with the deep hole of described center conductor on the rear end part sidewall of described center conductor 41.Scolding tin can be from the scolding tin hole 413 injects during welding, scolding tin is injected after therefore inner conductor can being inserted deep hole again, does not need earlier scolding tin to be injected deep hole like that in the prior art, and is more convenient to operate.
Except that above-mentioned difference, the female connector of coaxial cable connector and the female connector of coaxial cable connector shown in Fig. 2 of present embodiment two are basic identical, are listed below (not shown referring to Fig. 2) at this:
The stage casing 432 of described outer conductor 43 carries out the transition to the back segment 433 of described outer conductor 43 by the first step that shrinks or amplify on external diameter.
Described insulator 42 can be offered one or more annular grooves 422 vertically according to actual needs, with further realization electrical compensation, optimizes electrical property.
Can not occur getting loose after making insulator 42 fill in stage casing 432, the first protruding thorn structure 4321 can be set on stage casing 432, it is domatic towards front end, and step surface is towards the rear end.Equally, the structure of the first protruding thorn structure 4321 is not unique, as long as make described outer conductor 43 not get loose with described insulator 42.
The concrete shape of the rear end face of the rear end face of described insulator 42 and described center conductor 41 can change according to actual needs, and various changes all should belong to open scope of the present invention.
The female joint that this embodiment two provides and the size and the prior art of male joint inserting are identical, can with the male joint inserting of various constructed standards of the prior art.
Connecting coaxial cable with welding manner below is example, introduces the assembling process of the female joint of this enforcement two.
With described insulator 42 in the past end plug go into outer conductor stage casing 432, and withstand described first step 401 and obtain the location, get loose after preventing to fill in by the first protruding thorn mechanism 4321.
Coaxial cable is by strip off, its center conductor protrudes certain length, then center conductor 41 is enclosed within on the coax cable center conductor, be placed on the welding machine then, inject scolding tin by scolding tin hole 413, after the cooling with cable and the good center conductor 41 of welding inserts from the rear end of female joint in the lump and with the insulator rear end face as fixing end face.Then the outer conductor 43 of female joint and the outer conductor of coaxial cable are welded, can use the method for injection moulding to encase joint and cable sheath after the cooling.
Because center conductor 41 and insulator 42 interference fit, guaranteed the axiality of center conductor 41 and outer conductor 43, can not be subjected to the play of coax cable center conductor and be subjected to displacement, guaranteed the normal transmission of signal.
Certainly, the rear end of female joint can connect multi-form coaxial cable according to actual needs, such as crimping etc.Other supplementary structure also can be set, and the welding manner of describing in the present embodiment only is wherein a kind of.
Cross-sectional schematic vertically after a kind of male joint of the female connector of coaxial cable connector of present embodiment two as shown in Figure 6 and prior art is pegged graft, the taper of inserting the center conductor 21 of male joint in the recessed jack 411 of described center conductor 31 is protruded, and realizes inserting.
The cross-sectional schematic vertically of the female connector of coaxial cable connector of the embodiment of the invention three as shown in Figure 7 (part relevant with linkage interface only is shown), be with unique difference of embodiment two, open the purpose that blind holes 71 that one or several are parallel to the axis realize optimizing electrical properties on the insulator 42 vertically.
Certainly, the female joint of above-mentioned each embodiment except can and male joint inserting shown in Figure 6 and all energy insertings of male joint of various constructed standards of the prior art, have good versatility.
Above embodiment is an exemplary embodiment of the present invention only, is not used in restriction the present invention, and protection scope of the present invention is limited by additional claims.Those skilled in the art can make various modifications or be equal to replacement the present invention in essence of the present invention and protection range, this modification or be equal to replacement and also should be considered as dropping in protection scope of the present invention.
Claims (7)
1. female connector of coaxial cable connector, for the lining, in, outer three layers cirque structure, be respectively center conductor, insulator, the outer conductor of column from the inside to surface, the fore-end of described center conductor has recessed jack, has the deep hole that is used to insert inner conductor on the end face of rear end part; Described insulator is the annulus that the center has through hole, and the external diameter of the fore-end of described insulator is less than the external diameter of rear end part; Described outer conductor is divided into leading portion from front to back, stage casing and back segment, described leading portion has the annular spigot towards front end, this annular spigot is used to insert the thin cylinder of coaxial cable male joint front end, described back segment internal diameter is used to insert coaxial cable, it is characterized in that, the internal diameter of described leading portion identical with the internal diameter in described stage casing and with the external diameter coupling of the rear end part of described insulator, the inner surface in described stage casing carries out the transition to the inner surface of described back segment by first step, described first step is used for the described insulator of axial location, the internal diameter of the through hole of described insulator and the external diameter of described center conductor coupling, described center conductor can wholely insert in the through hole of described insulator, has the compensating tank of contraction on the periphery of the rear end part of described center conductor.
2. female connector of coaxial cable connector according to claim 1 is characterized in that, the rear end part of described insulator has the back taper groove coaxial with the through hole of described insulator.
3. female connector of coaxial cable connector according to claim 1 is characterized in that, offers the through hole that is communicated with the deep hole of described center conductor on the rear end part sidewall of described center conductor.
4. female connector of coaxial cable connector according to claim 1 is characterized in that, described insulator is provided with one or more axial blind holes, perhaps is provided with one or more axial annular groove.
5. female connector of coaxial cable connector according to claim 1 is characterized in that, the inner headed face in the stage casing of described outer conductor is provided with and prevents the first protruding thorn structure that gets loose.
6. female connector of coaxial cable connector according to claim 1 is characterized in that, the periphery of described center conductor is provided with and prevents the second protruding thorn structure that gets loose.
7. female connector of coaxial cable connector according to claim 1 is characterized in that, the periphery in the stage casing of described outer conductor arrives the back segment of described outer conductor by the 3rd step transition that shrinks or amplify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910209646XA CN101699670B (en) | 2009-11-02 | 2009-11-02 | Female joint of coaxial cable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910209646XA CN101699670B (en) | 2009-11-02 | 2009-11-02 | Female joint of coaxial cable connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101699670A true CN101699670A (en) | 2010-04-28 |
| CN101699670B CN101699670B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910209646XA Active CN101699670B (en) | 2009-11-02 | 2009-11-02 | Female joint of coaxial cable connector |
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| CN (1) | CN101699670B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064396A (en) * | 2010-11-01 | 2011-05-18 | 华为技术有限公司 | Coaxial cable connector |
| CN102279292A (en) * | 2011-07-12 | 2011-12-14 | 昆山安胜达微波科技有限公司 | Test fixture |
| CN104485560A (en) * | 2014-12-10 | 2015-04-01 | 安徽蓝麦通信科技有限公司 | Low-intermodulation antenna stern line connector |
| CN104638319A (en) * | 2013-11-11 | 2015-05-20 | 江苏正恺电子科技有限公司 | IF110 connector |
| CN104638327A (en) * | 2013-11-11 | 2015-05-20 | 江苏正恺电子科技有限公司 | SMA connector |
-
2009
- 2009-11-02 CN CN200910209646XA patent/CN101699670B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064396A (en) * | 2010-11-01 | 2011-05-18 | 华为技术有限公司 | Coaxial cable connector |
| CN102064396B (en) * | 2010-11-01 | 2013-04-24 | 华为技术有限公司 | Coaxial cable connector |
| CN102279292A (en) * | 2011-07-12 | 2011-12-14 | 昆山安胜达微波科技有限公司 | Test fixture |
| CN104638319A (en) * | 2013-11-11 | 2015-05-20 | 江苏正恺电子科技有限公司 | IF110 connector |
| CN104638327A (en) * | 2013-11-11 | 2015-05-20 | 江苏正恺电子科技有限公司 | SMA connector |
| CN104485560A (en) * | 2014-12-10 | 2015-04-01 | 安徽蓝麦通信科技有限公司 | Low-intermodulation antenna stern line connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101699670B (en) | 2011-11-09 |
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