Source: https://patents.google.com/patent/CN107438926A/en
Timestamp: 2019-12-08 08:00:58
Document Index: 148454613

Matched Legal Cases: ['art 24', 'art 42', 'art 42', 'art 12', 'art 12', 'art 12', 'art 42', 'art 12', 'art 32', 'art 12', 'art 12', 'art 42', 'art 12']

CN107438926A - The manufacture method of connectors device - Google Patents
The manufacture method of connectors device Download PDF
2017-12-05 Publication of CN107438926A publication Critical patent/CN107438926A/en
The present invention relates to a kind of manufacture method of connectors device, the connectors device includes connectors and attaches to the coaxial cable of the connectors, wherein (a) shifts stop sleeve (30) onto one end of the coaxial cable (20), (b) outer conductor (22) of coaxial cable is turned back onto stop sleeve (30), (c) described one end of coaxial cable (20) and stop sleeve are concomitantly introduced into the sleeve part (12) of connectors (10), and (d) then makes stop sleeve (30) be moved forward relative to coaxial cable (20) and connectors (10) until the axial restraint portion (14) in sleeve part (12).Moreover, it relates to the connectors device manufactured according to this method.
The manufacture method of connectors device
The present invention relates to the manufacture method of the connectors device as described in the preamble according to scheme 1, the grafting connects Connecing device device includes connectors and is attached to the coaxial cable of connectors.First, (a) shifts stop sleeve coaxially onto One end of cable, then (b) outer conductor of coaxial cable is turned back to above stop sleeve, also, finally, (c) is by coaxial electrical One end of cable is concomitantly introduced into the sleeve part of the outer conductor housing of connectors with stop sleeve.
Traditional connectors have be used for connectors and the grafting side that is connected of cooperation connectors and The cable side of (preferably inseparably by welding or crimping) attached cables.At least one inner wire of cable thus with Inner wire contact (such as the contact plug or contact socket) electrical connection being maintained in the insulated part of connectors.Cable Outer conductor (such as paper tinsel shielding part or wire braid) and connectors the outer conductor around inner wire contact Housing electrically connects, so as to preferably continuously be shielded from coaxial cable until the grafting side of connectors is set.
In order to manufacture connectors device, it is known that by the being constructed from a material that be electrically conducting of connectors and at least specific Part is the outer conductor housing of sleeve shaped together with the outer conductor crimping of cable or being pressurized to.Therefore, filled in connectors During the manufacture put, cable is peeled off at its front end, that is, removes partial cables sheath and outer conductor is exposed.Then will be around outer Outer conductor housing and the outer cable conductor of conductor are forced together, it is possible thereby to set crimp sleeve to provide support effect.
However it has been found that with the connectors device of conventional method manufacture between connectors and cable Often can not most preferably electricity matching in join domain.Especially, can occur in join domain with expected characteristic impedance not It is expected deviation, such as the undesirable increase of impedance.
In order to solve this problem, the sleeve in connectors is referred in the U of publication document DE 20 2,015 000 750 Extra sleeve part is set in portion inside, the axial end adjoining of the sleeve part and outer conductor.Publication document DE 20 2015 Refer in 000 751 U and being provided with region that can not be most preferably between the axial end and connectors of the outer conductor of electricity matching The radial contraction portion of extra pressure contact form.
Although improving the characteristic impedance of join domain by these methods, they add manufacture connectors dress Put required workload.
In view of the above problems, the purpose of the present invention is to improve the manufacture method of connectors device, enabling is being made Make and stable and high-tensile connection, the company are provided with effort as few as possible between connectors and coaxial cable Connect and realize optimal electricity matching throughout its whole extension also as much as possible on the length direction of cable.
According to the present invention, the purpose is realized by the method with the method and step described in scheme 1.Favourable other methods Step illustrates in additional scheme.In the method according to the invention, after step (c) in the step of (d), stop sleeve phase Moved into for coaxial cable and connectors in sleeve part until axial restraint portion.
In other words, cut cable is inserted to grafting company first in step (c) together with the stop sleeve for being configured at cut cable Connect in the sleeve part of device until (first) axial restraint portion, then stop sleeve is individually moved further into set in step (d) Until (second) axial restraint portion in sleeve part in cylinder portion, without making coaxial cable be moved together with stop sleeve so that Stop sleeve moves relative to cable in step (d).
In step (d), cable turn back to above stop sleeve, be preferably capable the paper tinsel shielding part or metal turned back The outer conductor of silk braid form, can partly elastic elongation in the axial direction, or the return portion of outer conductor slides back into branch With against coaxial cable around the front end of support set cylinder, so as to reduce the turnup for abutting against the outer cable conductor on the outside of stop sleeve The size of folded portion.
Stop sleeve is moved into sleeve part in step (d) is the reason for can simplifying, and turns back onto stop sleeve The external diameter of the outer cable conductor of side is slightly less than the internal diameter of sleeve part.
The sleeve part of connectors be preferably connected with the outer conductor housing of connectors or with connectors Outer conductor housing is integrally formed or is formed as single-piece therewith.In other words, the outer conductor housing of connectors is in its cable side End protrudes sleeve part with the tubulose for being used to introduce coaxial cable, and outer conductor housing is together with sleeve part preferably by such as metal Conductive material is formed.In this case, outer conductor housing around outer cable conductor and with outer cable conductor make electrical contact with The grafting sides of sleeve part towards connectors continue to shield.
The present invention is based on following knowledge：One end of coaxial cable is introduced to the sleeve part of connectors in step (c) Afterwards, the axial forward end of outer cable conductor no longer must be against the outer conductor housing of connectors, so as to go out in the point The suddenly change of the distance between the sleeve part of shielding of the existing inner wire with forming inner wire.But in order in cable geometry knot Constant impedance, the distance between inner wire and outer conductor constant are kept in the case that structure is constant on cable length direction It is necessary.For example, the increase of distance often produces induction region or caused the not phase of impedance between inner wire and outer conductor Hope increase.In traditional connectors device, the undesirable suddenly change that inner wire the distance between shields with it passes through Often occur at the axial forward end for the outer cable conductor turned back.On the contrary, according to the present invention, by step (d) by support set Cylinder is moved further into sleeve part until (second) restraint portion, can just ensure shielding in the axial direction of outer conductor by simple method Continue in front end area with inner wire constant distance so that the suddenly change of impedance does not occur in this region.
Finally, the one end of coaxial cable of the sleeve part preferably with carrying stop sleeve is crimped together.In other words, lead to The radial pressure that sleeve part is applied to from outside is crossed, the outer conductor turned back to above stop sleeve is forced together with sleeve part, So as to establish stable and high-tensile connection between coaxial cable and the outer conductor housing of connectors.The crimping connects The further detail below connect may be referred to the U of publication document DE 20 2,015 000 751, and its full text is incorporated in by reference This.
Advantageously, in step (c), the one end of coaxial cable is incorporated into the sleeve part of connectors, until At least one inner wire contact electrically connected with the inner wire of coaxial cable is caught in the insulated part of connectors to be engaged. Above-mentioned (first) axle can be established by being installed on the engagement of the inner wire contact of the cable head end of the insulated part of connectors To restraint portion, this prevent coaxial cable is further introduced into sleeve part.On the contrary, in step (d) stop sleeve relative to Inner wire is further introduced into sleeve part until (second) axial restraint portion is still possible.Therefore, according to the side of the present invention Method is able to ensure that being accurately positioned for inner wire between cable and connectors and outer conductor.
Alternatively, after step (c), inner wire contact is still within pre-assembled position and then only enters grafting In axial end position inside the insulated part of connector.
In order to optimize the characteristic impedance at the front end of outer cable conductor, it has proved that advantageously：In step (d), phase For coaxial cable and connectors movement stop sleeve, until outer cable conductor is around the portion of the axially forward portion of stop sleeve Divide against the restraint portion inside sleeve part of stepped form.In order that the interval holding between outer conductor and inner wire is constant Distance, if as formed outer cable conductor axial restraint portion the step of in, the internal diameter of connectors is substantially equal to coaxial electrical The diameter of the outer conductor of cable, then it is favourable.
Stop sleeve push-in sleeve part is until the reason for axial restraint portion can simplify, in order in step (d) Middle mobile stop sleeve, stop sleeve have such as periphery projection or the radially protruding part of the collar, can be with by radially protruding part Stop sleeve is caught manually or with instrument.Radially protruding part preferably forms the cable side of stop sleeve and/or with ring The form of the shape collar surrounds coaxial cable.The external diameter of stop sleeve in protuberance region is preferably greater than the internal diameter of sleeve part, Prevent protuberance is from being displaced into sleeve part.
Preferably, in step (d), stop sleeve is moved into sleeve part until radially protruding part is against the cable of sleeve part Side, thus the axial dimension of stop sleeve enable to the front end of outer cable conductor simultaneously against the axial direction in sleeve part inside Restraint portion.
Advantageously, will be coaxial in order to expose outer conductor before on the one end that stop sleeve is shifted onto to coaxial cable The cable insulation of cable is peelled off, and in step (a), shifts stop sleeve the outside of outer conductor onto until stop sleeve supports By cable insulation.
The sleeve part of stop sleeve and/or connectors preferably substantially rotational symmetry and especially contoured be approximately Cylindric or tubulose.
According on the other hand, the present invention relates to by means of connectors device made according to the method for the present invention.Insert Connecting connector device is made up of connectors with the coaxial cable for being attached to connectors, and wherein connectors have Cable side has the outer conductor housing in tubular sleeve portion.By the front end with the coaxial cable for being pulled to stop sleeve thereon (outer conductor of coaxial cable is folded back into above the stop sleeve) is pushed forward into the sleeve part of connectors so that is turned back Outer conductor axially forward portion against the restraint portion in sleeve part inside.The restraint portion can be the step in sleeve part inside The form of shape shoulder.In order to realize optimal electricity matching, internal diameter of the connectors in shoulder regions should be with coaxial cable The diameter of outer conductor match.
On the further preferred feature of the connectors device according to the present invention, with reference to described above.
Preferably, stop sleeve has the radially protruding part of projecting manner, such as the collar in cable side, especially around same The circumferential collar of shaft cable.External diameter in the radially protruding part of stop sleeve is preferably greater than the interior of the sleeve part of connectors Footpath, such as be particularly preferred accurately equally big with the external diameter of sleeve part so that radially protruding part is substantially alignd with sleeve part.
In particularly preferred embodiments, connectors device includes being clipped in the insulated part of connectors At least one inner wire contact, the inner wire contact electrically connect with the inner wire of coaxial cable, and for transmitting electric current And/or signal.
The present invention is described in detail in the following description now with reference to accompanying drawing, wherein：
Fig. 1 a to Fig. 1 e show five steps by means of manufacturing method according to the invention manufacture connectors device, And
Fig. 2 shows the exploded view of the connectors device according to the present invention.
Fig. 1 a show the coaxial cable 20 that insulating part is peelled off from front end, and coaxial cable 20 includes inner wire, wire is compiled The dielectric of outer conductor 22, configuration between inner wire and outer conductor 22 of form of fabric and the cable insulation as protection sheath Part 24.By on stop sleeve 30 shifts coaxial cable onto made of the conductive material of such as metal end, outer lead especially is shifted onto The outside of body 22.
Stop sleeve 30 be shaped as tubular (referring also to Fig. 2) and its internal diameter and the external diameter phase of outer cable conductor 22 Match somebody with somebody.Stop sleeve 30 has the footpath of projection (" the circumferential collar ") form for surrounding coaxial cable in an annular manner in its cable side To protuberance 32.
Stop sleeve 30 is being promoted until it is against after cable insulation 24, by forms such as wire braids A part for outer cable conductor 22 is turned back to the top of stop sleeve 30.The turnup folded portion turned back backward of outer cable conductor 22 Present in Figure 1b dark-coloured.Inner wire contact 40 is also installed on the inner wire of cable 20, so as to form electricity as shown in Figure 1 b The front end of cable assembly.
The front end of coaxial cable 20 is then connected with connectors 10.Connectors 10 include that there is cable side to protrude (electric conductivity) the outer conductor housing in tubular sleeve portion 12 and the insulated part 42 being contained in outer conductor housing, insulated part 42 have There is the inner wire passage of clamping inner wire contact 40.The internal diameter of sleeve part 12, which is slightly larger than, turns back to the outer of the top of stop sleeve 30 The diameter of cable conductor 22 so that outer cable conductor 22 can be introduced into the sleeve part 12 of outer conductor housing without any problem (referring to Fig. 1 c).
CA cable assembly is incorporated into sleeve part 12 until the inner wire contact in the insulated part 42 of connectors 40 clamp in place or against connectors 10 (the first restraint portion).Alternatively, inner wire contact 40 is configured at pre- group Holding position.
Present stop sleeve 30 is caught and moved further into sleeve part 12 (referring to reference by radially protruding part 32 X), until the front end of cable shield braid 22 is resisted against the shoulder 14 of the step formation in the inside of sleeve part 12 so that shielding It can be continued towards the grafting side of connectors with constant distance.It is important that such as especially clearly shown in Fig. 1 d , outer conductor 22 axial forward end without opening space or precipitous step.
Finally, sleeve part 12 and outer cable conductor 22 are crimped together (referring to Fig. 1 e).
Fig. 1 e are shown by means of connectors device 100 made according to the method for the present invention.
Fig. 2 shows each part of the manufacture according to the connectors device 100 of the present invention with exploded view, i.e., by insulating Part 42 and connectors, stop sleeve 30, the and of inner wire contact 40 that there is the outer conductor housing of sleeve part 12 to form Coaxial cable 20.
Alternatively, multiple inner wires can be had according to the connectors device of the present invention, for example, two, three, four Individual or more inner wire.As further alternative, can additionally be had according to the connectors device of the present invention Sleeve part as described in the U of foregoing disclosure file DE 20 2,015 000 750 and the U of DE 20 2,015 000 751 or Crimping point.
1. a kind of manufacture method of connectors device (100), the connectors device (100) include connectors (10) and the coaxial cables (20) of the connectors (10) is attached to, wherein
A) stop sleeve (30) is shifted onto on one end of the coaxial cable (20),
B) outer conductor (22) of the coaxial cable (20) is turned back onto the stop sleeve (30), and
C) described one end of the coaxial cable (20) and the stop sleeve (30) are concomitantly introduced into the connectors (10) in sleeve part (12),
D) and then the stop sleeve (30) is made to move into institute relative to the coaxial cable (20) and the connectors (10) State in sleeve part (12) untill axial restraint portion (14).
2. according to the method for claim 1, it is characterised in that the sleeve part (12) is then held with the coaxial cable The described one end for carrying the stop sleeve (30) is crimped together.
3. method according to claim 1 or 2, it is characterised in that in step c), by described the one of the coaxial cable End is introduced into the sleeve part (12) of the connectors untill axial restraint portion.
4. according to the method for claim 3, it is characterised in that in step c), by described one end of the coaxial cable Be introduced into the sleeve part (12) of the connectors, until electrically connected with the inner wire of the coaxial cable at least one Individual inner wire contact (40) is caught in the insulated part (42) of the connectors and engaged.
5. according to any method of the preceding claims, it is characterised in that in step d), make the stop sleeve (30) moved relative to the coaxial cable and the connectors, the stop sleeve is surrounded until the coaxial cable (30) outer conductor (22) of axially forward portion is against the restraint portion of the stepped form in the sleeve part (12) inside (14)。
6. according to the method for claim 5, it is characterised in that the internal diameter of the connectors at the step substantially Corresponding to the diameter of the outer conductor (22) of the coaxial cable.
7. according to any method of the preceding claims, it is characterised in that the stop sleeve (30) has radially Protuberance (32), stop sleeve (30) is stated with step manually or with Tool grasper residence by the radially protruding part (32) D) stop sleeve (30) is moved forward in.
8. according to the method for claim 7, it is characterised in that the radially protruding part (32), which has, surrounds the coaxial electrical The circumferential collar of cable.
9. the method according to claim 7 or 8, it is characterised in that in step d), move forward the stop sleeve (30) until the radially protruding part (32) is against the cable side of the sleeve part (12).
10. according to any method of the preceding claims, it is characterised in that in order to expose the outer conductor (22) first Described one end of the coaxial cable (20) is peeled off, then in step a), the stop sleeve (30) shifted onto described outer The outside of conductor (22) is until the stop sleeve (30) is against cable insulation (24).
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