CN201063393Y

CN201063393Y - RF coaxial connector

Info

Publication number: CN201063393Y
Application number: CNU200720039550XU
Authority: CN
Inventors: 任纪宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-11
Filing date: 2007-06-11
Publication date: 2008-05-21
Anticipated expiration: 2017-06-11

Abstract

The utility model relates to a radio frequency coaxial connector, belonging to the communication cable fittings technical field. The connector comprises a connector body and a cable sleeve body which are connected end to end, wherein, the connector body comprises a cylindrical metal shell; the inside of the metal shell is provided with a first step through hole; one end of the first step through hole is inlaid with an insulated ring body; the center of the insulated ring body is fixed with a conductor core insert; the cable sleeve body is provided with a second step through hole through which a coaxial cable can pass; when the coaxial connector is connected with a coaxial cable and a communication device at the same time, one end of the conductor core insert is connected with the center conductor of the coaxial cable, while the other end is connected with the tapping conductor of the communication device. On the basis of maintaining due to electrical properties, the coaxial connector greatly reduces the material for making the connector through eliminating redundant structure; moreover, the coaxial connector is more convenient for installation.

Description

Radio frequency (RF) coaxial connector

Technical field

The utility model relates to a kind of connector, relates in particular to a kind of radio-frequency communication that is used for and transmits coaxial cable and the coaxial connector that communication device (as power splitter or coupler etc.) is connected, and belongs to communication cable accessory technical field.

Background technology

In existing radio-frequency communication cable transmission facility, be to adopt N type coaxial connector that coaxial cable is connected with communication device (as power splitter or coupler) traditionally.N type coaxial connector generally is divided into end to end each other K formula connector (as shown in Figure 1) and J formula connector (as shown in Figure 2) again, when connecting coaxial cable and communication device, as shown in Figure 3, one end of coaxial cable is connected with an end of J formula connector, with an end of the other end of J formula connector and K formula connector each other yin-yang match be connected, the other end with K formula connector is connected with communication device (as power splitter or coupler) again.

The applicant finds, above-mentioned traditional N type coaxial connector, the connector of its two kinds of yin-yang match structurally has overlapping part, promptly in two kinds of yin and yang lian joints, all be respectively equipped with the identical core-inset type inner wire (as 101,102 among Fig. 1, Fig. 2 and Fig. 3) of structure, this just makes syndeton seem to repeat loaded down with trivial details, therefore inconvenience not only is installed, and takes material, cost height.According to applicant's rough estimates, for the employed N type of 1/2 coaxial cable coaxial connector, every N type coaxial connector (containing J formula connector and K formula connector) consumes about 0.6 kilogram of copper material; In China, use every day the N type coaxial connector that contains J formula connector and K formula connector to have 300,000 approximately at present,, need to consume 11,340,000 yuans of HPb59-1 copper materials by 63 yuan of/kilogram calculating of HPb59-1 copper material price RMB on the existing market.The situation of and communication career fast development very nervous in the face of the Copper Product in China resource, the applicant think very be necessary to develop a kind of can be than the novel coaxial connector of existing N type coaxial connector minimizing copper material consumption and cost.

The utility model content

The purpose of this utility model is: a kind of radio frequency (RF) coaxial connector is provided, and it compares existing N Connector should have simpler structure when keeping electric property, thereby reduces material consumption and cost.

In order to achieve the above object, the solution that the utility model proposes is: a kind of radio frequency (RF) coaxial connector, comprise end to end connector body and cable body, described connector body contains a cylindrical metal shell, be shaped on the first step through hole in the described metal shell, one end of described first step through hole is embedded with an insulation circle body, and the center of described insulation circle body has fastened the conductor lock pin, but described cable joint-box system has the second step through hole of cross-under coaxial cable; When described radio frequency (RF) coaxial connector with coaxial cable, when communication device is connected, an end of described conductor lock pin is connected with the center conductor of coaxial cable, its other end is connected with the conductor of communication device.

Further improving of such scheme is: described conductor lock pin is shaped on slot near an end of described back-up ring; Described first step through hole middle part is provided with back-up ring, and its other end is shaped on first inner hole thread; One end of the external wall of described cable joint-box is shaped on first external screw thread, and the other end of its outer wall is shaped at least two first parallel surfaces that parallel; Be embedded with tighten ring near described first an externally threaded end in the described second step through hole; Described first external screw thread and described first inner hole thread are matched.

Concrete installation process is: 1. earlier described connector body is connected with communication device (as power splitter or coupler), be about to described conductor lock pin and be connected with conductor in the communication device away from an end of described slot, an end that simultaneously described metal shell is equipped with the insulation circle body is connected with the communication device outer wall.2. will use an end of the radio frequency coaxial-cable of object to cut open as the utility model, expose the center conductor of one section coaxial cable along its length, and the center conductor position that is exposed at interval exposes one section metallic screen sleeve that is surrounded on outside the center conductor again; Then described cable body is enclosed within an end of the coaxial cable of cutting open, the inwall of the tighten ring in cable body one end and the outer wall that exposes one section metallic screen sleeve are fitted, the inwall of the other end and coaxial cable crust are fitted; Then, the coaxial cable that connects the cable body is exposed center conductor one end to be inserted in the first step through hole from the end that described metal shell is shaped on internal thread, one section exposed center conductor is inserted in the slot of described conductor lock pin one end, the external screw thread of cable body and the internal thread of metal shell are screwed, after this in constantly screwing in, the outside end wall of described tighten ring is against on the side wall of described back-up ring and constantly pushes against mutually.Through said process, promptly finish by the utility model radio frequency (RF) coaxial connector coaxial cable is connected reliably with communication device.

Like this, the utility model radio frequency (RF) coaxial connector is structurally integrated mutually by the J formula connector and the K formula connector that will have N Connector now, the core-inset type inner wire that is about to existing J formula connector and K formula connector unites two into one, deduct redundant structure keeping to have on the basis of electric property, simplified the structure of coaxial connector greatly, not only convenient thus the installation be the more important thing is and reduced manufactured materials significantly, especially Bao Gui copper material.

Description of drawings

Fig. 1 is the structural representation of existing N type coaxial connector K formula connector.

Fig. 2 is the structural representation of existing N type coaxial connector J formula connector.

Fig. 3 is the structural representation when J formula connector matches among K formula connector and Fig. 2 among Fig. 1.

The structural representation of Fig. 4 the utility model radio frequency (RF) coaxial connector.

Fig. 5 is the profile schematic diagram of Knock-Down Component-connector body among Fig. 4.

Fig. 6 is the cross-sectional view of Fig. 5.

Fig. 7 is the structural representation of Knock-Down Component among Fig. 4-cable body.

Fig. 8 is the structural representation of Knock-Down Component among Fig. 4-conductor lock pin.

Fig. 9 is the structural representation when radio frequency (RF) coaxial connector and coaxial cable and power splitter are matched among the utility model embodiment.

Figure 10 is the structural representation when radio frequency (RF) coaxial connector and coaxial cable and coupler are matched among the utility model embodiment.

Embodiment

The radio frequency (RF) coaxial connector of present embodiment comprises connector body 1 and cable body 2 as shown in Figure 4.As shown in Figure 6, connector body 1 contains a cylindrical metal shell 3, is shaped on first step through hole 4 in the metal shell 3; End in the first step through hole 4 is embedded with an insulation circle body 5, and the middle part in the first step through hole 4 is embedded with back-up ring 6; The other end in the first step through hole 4 is shaped on first inner hole thread 7.As shown in Figure 4, insulation circle body 5 centers have fastened conductor lock pin 8, and conductor lock pin 8 is shaped on slot 9 near an end of back-up ring 6.As shown in Figure 6, the inner end wall of insulation circle body 5 is against on the sidewall of the first step 39 in the first step through hole 4.Back-up ring 6 and cable body 2 adopt metal material to make.

As shown in Figure 7, an end of cable body 2 outer walls is shaped on first external screw thread 11, and it is hexaplanars that the outer wall other end is shaped on first parallel surface, 12, the first parallel surfaces 12 that are parallel to each other.In cable body 2, be shaped on second step through hole 13, an end setting-in tighten ring 14 of close first external screw thread 11 in second step through hole 13, the inner end wall that tighten ring 14 is put in the cable body 2 is against on the second step 53 of second step through hole 13, the inwall of tighten ring 14 is shaped on groove 50, the both sides of groove 50 form spike 51, and tighten ring 14 outboard ends form an oblique inwall 54 and are shaped on and crack.

As shown in Figure 4, first external screw thread 11 is matched with described first inner hole thread 7

As Fig. 4, shown in Figure 5, be shaped on second external screw thread 15 at the metal shell 3 close end outer walls that insulate circle bodies 5.

As shown in Figure 5, metal shell 3 is shaped on two second parallel surfaces 37 that are parallel to each other at the outer wall near second external screw thread 15.

As shown in Figure 6, the outboard end of back-up ring 6 is formed with an oblique outer wall 55.

As shown in Figure 7, conductor lock pin 8 is to be made of positive lock pin section 16 that is threaded mutually and cloudy lock pin section 17.The two ends of sun lock pin section 16 are shaped on the 3rd external screw thread 18 and the screw thread 19 all round respectively, and positive lock pin section 16 is shaped on two the 3rd parallel surfaces 21 that are parallel to each other at the end outer surface near the 3rd external screw thread 18; One end of cloudy lock pin section 17 is shaped on second inner hole thread 20, and slot 9 is positioned at the other end of cloudy lock pin section 17, has four road bar v notch vs 10 at the perisporium of slot 9; Screw thread 19 and second inner hole thread 20 are matched all round.

As shown in Figure 9, when the situation when matched is with the radio frequency (RF) coaxial connector of present embodiment and coaxial cable and power splitter:

1. be connected with power splitter 22: be provided with tap conductor 23 in the power splitter 22, one end of tap conductor 23 is shaped on a connecting hole 24, be shaped on the 3rd inner hole thread 25 in the connecting hole 24, power splitter 22 outer walls of corresponding connecting hole 24 have outer connecting hole 26, are shaped on the 4th inner hole thread 27 in the outer connecting hole 26; Earlier conductor lock pin 8 and insulation circle body 5 are fastened, the positive lock pin section 16 of conductor lock pin 8 is shaped on the end alignment connecting hole 24 of the 3rd external screw thread 18, the 3rd external screw thread 18 is cooperated with the 3rd inner hole thread 25 and screw in, after screwing, an end that again connector body 1 is shaped on second external screw thread 15 is aimed at outer connecting hole 26, second external screw thread 15 is cooperated with the 4th inner hole thread 27 and screw in, when screwing in, the insulation circle body 5 that fastens conductor lock pin 8 embeds in the first step through holes 4, and insulation circle body 5 is against because of its inner end wall on the sidewall of the first step 39 in the first step through hole 4 and is positioned.

2. be connected with coaxial cable 28: coaxial cable 28 from inside to outside by center conductor 29, be wrapped in center conductor 29 outer 32 on insulator 30, corrugated metallic screen sleeve 31, cable sheath layers and constitute, for coaxial cable is connected with the radio frequency (RF) coaxial connector of present embodiment effectively, earlier an end of coaxial cable 28 is cut open, make center conductor 29 expose one section along its length, and the center conductor position that is exposed at interval make corrugated metallic screen sleeve 31 also expose one section; Tighten ring 14 is enclosed within on the metallic screen sleeve 31 that exposes a section then, the inwall of tighten ring 14 and the outer wall of metallic screen sleeve are fitted, its further groove 50 just in time matches with the projection of metallic screen sleeve outer wall, the spike 51 of groove 50 both sides just in time matches with the depression of metallic screen sleeve outer wall, cable body 2 is enclosed within the outer wall of tighten ring 14, the inner end wall of tighten ring 14 is against on the second step 53 of second step through hole 13 of cable body 2 again; Then, the coaxial cable that connects the cable body exposes center conductor 29 1 ends and inserts in the first step through hole 4 from the dead end that is connected the connector body 1 on the power splitter 22, after the insertion, center conductor 29 promptly inserts in the slot 9 of cloudy lock pin section 17 of conductor lock pin 8 one ends, and first external screw thread 11 of cable body screws mutually with first inner hole thread 7 of metal shell 3 simultaneously; After this in constantly screwing in, the outside end wall of tighten ring 14 is against on the oblique outer wall 55 of back-up ring 6 outboard ends and constantly pushes against mutually, and along with continuous screw-in, because the outside end wall of tighten ring 14 has the slit, therefore the outside end wall of tighten ring 14 can strut along the oblique outer wall of a side of back-up ring 6, and then the oblique inwall 54 of tighten ring 14 outboard ends is supported on the oblique outer wall 55 of the outboard end that is affixed on back-up ring 6, when oblique inwall 54 and oblique outer wall 55 complete when smooth, can make tighten ring 14 and back-up ring 6 form effective seal in its contact position, thus the leakage when avoiding transmission signals.

3. be the positiver sealing of junction between the radio frequency (RF) coaxial connector that keeps present embodiment and coaxial cable and the communication device, as shown in Figure 9, second external screw thread, 15 outer walls of connector body 1 and outside be provided with first sealing ring 33 between connecting hole 26 inwalls, between metal shell 3 outer walls of connector body 1 and cable body 2 outer walls, be provided with second sealing ring 34, between cable body 2 inwalls and cable sheath layer 32 outer wall, be provided with the 3rd sealing ring 35, between cable body 2 inwalls and tighten ring 14 outer walls, be provided with the 4th sealing ring 36.

4. first parallel surface 12 (being hexaplanar) of cable body 2 outer walls one end can block by convenient wrench, with first external screw thread 11 that screws cable body 2 first inner hole thread 7 with metal shell 3; Second parallel surface 37 of metal shell 3 can block by convenient wrench, with second external screw thread 15 that screws connector body 1 the 4th inner hole thread 27 with power splitter 22; The 3rd parallel surface 21 of conductor lock pin 8 can block by convenient wrench, with the 3rd external screw thread 18 that screws conductor lock pin 8 the 3rd inner hole thread 25 with tap conductor 23.

5. four road bar v notch vs of opening by slot 9 perisporiums 10, can therefore can finish the communication signal transmission of carrying out through the tap conductor 23 of conductor lock pin 8 arrival power splitters 22 from the center conductor 29 of coaxial cable well with inserting center conductor 29 clampings in the slot 9 and forming closely contact.

Through said process, the radio frequency (RF) coaxial connector of promptly finishing present embodiment is connected with communication device reliably with coaxial cable.

As shown in figure 10, when with the radio frequency (RF) coaxial connector of present embodiment and coaxial cable and coupler when matched, basic and the above-mentioned radio frequency (RF) coaxial connector with present embodiment of its situation is identical with the matched situation of coaxial cable and power splitter, and different is: the end that the positive lock pin section 16 of conductor lock pin 8 is shaped on the 3rd external screw thread 18 is that the notch on the circuit board 38 with coupler welds.

In sum, the radio frequency coaxial-cable connector of present embodiment is by ingenious design, only realize promptly that with a core-inset type conductor communication signal between communication device and the coaxial cable transmits, just because of only needing a core-inset type conductor, so compare existing coaxial connector, can simplify structure greatly and reduce material and expend, thereby have outstanding substantive distinguishing features and obvious improvement.

Radio frequency (RF) coaxial connector of the present utility model is not limited to the described concrete technical scheme of the foregoing description, technical characterictic in the concrete technical scheme also can have other variation, as: 1) being threaded between the metal shell 3 of connector body 1 and the power splitter 22 can change also that flange is connected or clamping into, also can be welding between conductor lock pin 8 and the center conductor 29 or be threaded, also can welding or clamping between conductor lock pin 8 and the tap conductor 23, when corresponding first parallel surface 12 is not adopted when being threaded in above-mentioned connection, second parallel surface 37 and the 3rd parallel surface 21 can remove; 2) conductor lock pin 8 also can be without separating into 17 two sections of the positive lock pin section 16 that is spirally connected mutually and cloudy lock pin sections, but whole section, corresponding insulation circle body 5 can adopt elastomeric material and cut a seam along side face, launches to close up insulation circle body 5 again after insulation circle body 5 is wrapped in conductor lock pin 8 appearances; 3) hexaplanar 12 of cable body 2 outer walls also can be two parallel surfaces that are parallel to each other, four parallel surfaces that are parallel to each other or anistree face; 4) the bar v notch v 10 of slot 9 perisporiums also can be two roads or multiple tracks; 5) back-up ring 6 also can be made with metal shell 3 integral body; Tighten ring 14 also can be made with cable body 2 integral body; Or the like.The technical scheme that all employings are equal to replacement or equivalent transformation formation is the protection range that the utility model requires.

Claims

1. radio frequency (RF) coaxial connector, it is characterized in that: comprise end to end connector body and cable body, described connector body contains a cylindrical metal shell, be shaped on the first step through hole in the described metal shell, one end of described first step through hole is embedded with an insulation circle body, the center of described insulation circle body has fastened the conductor lock pin, but described cable joint-box system has the second step through hole of cross-under coaxial cable; When described radio frequency (RF) coaxial connector with coaxial cable, when communication device is connected, an end of described conductor lock pin is connected with the center conductor of coaxial cable, its other end is connected with the inner wire of communication device.

2. according to the described radio frequency (RF) coaxial connector of claim 1, it is characterized in that: described conductor lock pin is shaped on slot near an end of described back-up ring; Described first step through hole middle part is provided with back-up ring, and its other end is shaped on first inner hole thread; One end of the external wall of described cable joint-box is shaped on first external screw thread, and the other end of its outer wall is shaped at least two first parallel surfaces that parallel; Be embedded with tighten ring near described first an externally threaded end in the described second step through hole; Described first external screw thread and described first inner hole thread are matched.

3. according to the described radio frequency (RF) coaxial connector of claim 2, it is characterized in that: the inner end wall of described insulation circle body is against on the sidewall of the first step in the described first step through hole, and described first parallel surface is a hexaplanar; The inner end wall that described tighten ring packs in the cable body is against on the second step of second step through hole, and its inwall is shaped on groove; The both sides of described groove form spike; The outboard end of described tighten ring forms an oblique inwall and is shaped on and cracks.

4. according to the described radio frequency (RF) coaxial connector of claim 3, it is characterized in that: described metal shell is shaped on second external screw thread near the end outer wall of insulation circle body, and it is shaped on two second parallel surfaces that are parallel to each other near the second externally threaded outer wall.

5. according to the described radio frequency (RF) coaxial connector of claim 4, it is characterized in that: described conductor lock pin is made of positive lock pin section that is threaded mutually and cloudy lock pin section; The two ends of described positive lock pin section are shaped on the 3rd external screw thread and the screw thread all round respectively, and it is shaped on two the 3rd parallel surfaces that are parallel to each other near the 3rd externally threaded end outer surface; One end of described cloudy lock pin section is shaped on second inner hole thread; Described slot is positioned at the other end of described cloudy lock pin section, and its perisporium has the above bar v notch v in two roads; Described screw thread and described second inner hole thread are matched all round.

6. according to the described radio frequency (RF) coaxial connector of claim 5, it is characterized in that: the outboard end of described back-up ring is formed with an oblique outer wall.

7. according to the described radio frequency (RF) coaxial connector of claim 6, it is characterized in that: when described radio frequency (RF) coaxial connector is connected with coaxial cable, described oblique inwall is close to mutually with described oblique outer wall, the center conductor of described coaxial cable inserts in the described slot, the inner end wall of described tighten ring is against on the second step of described second step through hole, and the outer wall of the metallic screen sleeve of its inwall and described coaxial cable fits.

8. according to the described radio frequency (RF) coaxial connector of claim 7, it is characterized in that: described communication device is a power splitter, and the inner wire of described communication device is the tap conductor of described power splitter; When described radio frequency (RF) coaxial connector was connected with power splitter, the 3rd inner hole thread in the connecting hole of described the 3rd external screw thread and described tap conductor was matched, and the 4th inner hole thread in the outer connecting hole of described second external screw thread and described power splitter is matched.

9. according to the described radio frequency (RF) coaxial connector of claim 7, it is characterized in that: described communication device is a coupler, and the inner wire of described communication device is the circuit board of described coupler; When described radio frequency (RF) coaxial connector is connected with coupler, the outer end of the positive lock pin section of described conductor lock pin and the welding of the notch on the described coupler circuit board.

10. according to each described radio frequency (RF) coaxial connector of claim 1-9, it is characterized in that: described back-up ring and cable body adopt metal material to make.