CN212626159U - High-speed coaxial radio frequency connector - Google Patents

Abstract

The utility model relates to a high-speed coaxial radio frequency connector, which comprises a metal conductive seat and an insulating plastic seat. The metal conductive seat comprises an insulating column and a wiring terminal. The wiring terminal is formed by connecting the female socket inserting section and the PCB connecting section in sequence. The insulating column is formed by a sleeving function section and an extending limit section. The sleeving function section is provided with a through jack for the insertion section of the female seat to be inserted. And the epitaxial limiting section is provided with a limiting clamping groove communicated with the through jack so as to be used for placing and fixing the PCB connecting section. A series of welding points are uniformly distributed along the length direction of the limiting clamping groove so as to realize the welding fixation of the limiting clamping groove and the connecting section of the PCB. Therefore, when the PCB connecting section is acted by external force, the existence of the limiting clamping groove can effectively prevent the PCB connecting section from twisting, and the included angle of the PCB connecting section relative to the female seat inserting section is ensured to be always kept at a determined value, so that the high-speed coaxial radio frequency connector has excellent high-frequency performance.

Description

High-speed coaxial radio frequency connector

Technical Field

The utility model belongs to the technical field of the connector manufacturing technique and specifically relates to a high-speed coaxial radio frequency connector.

Background

High speed coaxial rf connectors are generally considered to be a component attached to a cable or mounted on an instrument as a component to which a transmission line is electrically connected or separated. It belongs to a mechatronic product. In brief, it mainly acts as a bridge.

The high-speed coaxial radio frequency connector is formed by inserting a metal conductive seat and an insulating plastic seat. The metal conductive seat is arranged on the PCB in a matching way and mainly comprises a metal conductive shell, a cover plate, a metal conductive sleeve, an insulating column, a wiring terminal and the like. Wherein, binding post wholly is "L shape, is formed by female seat insertion section and PCB board linkage segment according to the preface connection. The female seat inserting section is inserted and fixed in the insulating column, and the communicated metal conducting sleeve is integrally arranged in the metal conducting shell. In the prior art, the insulating column is straight tube-shape, so, after binding post for the insulating column assembly completion, female seat inserted section is in reliable fixed state, and its PCB board linkage segment is in unsettled state, thereby in the practical application process, the PCB board linkage segment receives external force effort and easily takes place to twist reverse the phenomenon, and still can cause the change of PCB board linkage segment and female seat inserted section relative contained angle, thereby influence the high frequency performance of the electrically conductive seat of metal, and then influence signal transmission's reliability, stability. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a structural design is simple, does benefit to the manufacturing shaping, prevents that its binding post from taking place deformation in the practical application process, and ensures that it self has high-speed coaxial radio frequency connector of good high frequency performance.

In order to solve the technical problem, the utility model relates to a high-speed coaxial radio frequency connector comprises metal conducting seat and insulating plastic seat. The metal conductive seat and the insulating plastic seat are inserted and butted along the direction from right to left. The metal conductive seat comprises a metal conductive shell, a metal conductive sleeve, an insulating column and a wiring terminal. The metal conductive shell comprises a conductive shell body and an inserting column. The plug column is formed by extending the left side wall of the conductive shell body leftwards continuously, and a first accommodating cavity is arranged in the plug column. The metal conductive sleeve is arranged in a penetrating mode and fixed in the first accommodating cavity, and the second accommodating cavity is formed in the length direction of the metal conductive sleeve. Binding post wears to establish, is fixed in the insulating cylinder, and wholly puts into above-mentioned second and holds the intracavity. The binding post is formed by female seat inserting section and PCB board linkage segment connecting according to the preface, and wholly is "L shape". The insulating column is composed of a sleeving function section and an extending limit section. The extension limiting section is formed by sleeving the extension of the functional section and bending. The functional section is provided with a through jack. The female seat inserting section is inserted and fixed in the through penetrating hole. The side wall of the epitaxial spacing section is provided with a spacing clamping groove communicated with the through jack for placing and fixing the PCB connecting section.

As the utility model discloses technical scheme's further improvement has a series of solder joints along the length direction equipartition of spacing draw-in groove to realize its welded fastening with the PCB board linkage segment.

As the technical scheme of the utility model the further improvement is provided with the top on the function section is established to the cover and leans on the sand grip. The top is leaned on the sand grip and is established the length direction of function section along the cover and extend, and its quantity sets up to a plurality ofly, establishes the central axis of function section around the cover and carries out circumference equipartition. During the process that the functional section is inserted into the metal conductive sleeve, the propping convex strip is subjected to adaptive elastic deformation so as to realize elastic propping of the second accommodating cavity.

As a further improvement of the technical proposal of the utility model, the insertion end leaning against the convex strip is provided with a leading-in inclined plane.

As the technical scheme of the utility model further improve, above-mentioned metal conductive seat is still including pressing the portion of riveting, and its shaping is between metal conductive sleeve and the plug post. The pressure riveting portion is formed by a pressure riveting limiting protrusion formed on the side wall of the metal conductive sleeve and a pressure riveting limiting pit formed on the side wall of the first accommodating cavity.

As a further improvement of the technical proposal of the utility model, the metal conductive shell is preferably cast by zinc alloy.

As the utility model discloses technical scheme's further improvement, the peripheral lateral wall around the grafting post is provided with two at least spacing recesses. Each limit groove is circumferentially and uniformly distributed along the central axis of the insertion column, and correspondingly, at least two elastic clamping sheets matched with the limit grooves in direction and shape are arranged on the side wall of the insulating plastic seat.

Compared with the high-speed coaxial radio frequency connector with the traditional design structure, the high-speed coaxial radio frequency connector additionally provided with the epitaxial limiting section on the inner insulating column is provided with the limiting clamping groove for placing and fixing the PCB connecting section, thus, in the actual use process, when the PCB connecting section is acted by external force, the occurrence of the phenomenon of self torsion of the PCB connecting section can be effectively prevented by the limiting clamping groove, the included angle of the high-speed coaxial radio frequency connector relative to the female seat inserting section is always kept at a determined value, the high-speed coaxial radio frequency connector has excellent high-frequency performance, and the reliability and the stability of a signal transmission process are ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a first embodiment of a medium-high speed coaxial rf connector according to the present invention.

Fig. 2 is an exploded view of a first embodiment of the medium-high speed coaxial rf connector of the present invention.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is a sectional view B-B of fig. 3.

Fig. 6 is a schematic perspective view of an insulating plastic seat in a first embodiment of the high-speed coaxial rf connector according to the present invention.

Fig. 7 is a perspective view of a metal conductive shell according to a first embodiment of the high-speed coaxial rf connector of the present invention.

Fig. 8 is a schematic perspective view of another view angle of the metal conductive shell in the first embodiment of the high-speed coaxial rf connector according to the present invention.

Fig. 9 is a schematic perspective view of a metal conductive sleeve in a first embodiment of the high-speed coaxial rf connector according to the present invention.

Fig. 10 is a perspective view of the insulating post of the first embodiment of the high-speed coaxial rf connector of the present invention.

Fig. 11 is a top view of fig. 10.

Fig. 12 is a cross-sectional view C-C of fig. 11.

Fig. 13 is a schematic perspective view of a connection terminal in a first embodiment of the high-speed coaxial rf connector according to the present invention.

Fig. 14 is an assembly diagram of the connection terminal and the insulation post of the first embodiment of the high-speed coaxial rf connector according to the present invention.

Fig. 15 is a schematic structural diagram of a second embodiment of the medium-high speed coaxial rf connector according to the present invention.

Fig. 16 is a schematic perspective view of a metal conductive sleeve in a second embodiment of the high-speed coaxial rf connector according to the present invention.

Fig. 17 is a schematic perspective view of a metal conductive shell in a second embodiment of the high-speed coaxial rf connector according to the present invention.

1-a metal conductive seat; 11-a metal conductive shell; 111-a conductive shell body; 112-a plug column; 1121 — a first receiving cavity; 1122-a limit groove; 12-a metallic conductive sleeve; 121-a second receiving chamber; 13-an insulating column; 131-sleeving a functional section; 1311-through receptacle; 1312-abutting ribs; 13121-a lead-in bevel; 132-an epitaxial confinement section; 1321-limit card slot; 14-a terminal; 141-female socket plugging section; 142-PCB board connection section; 15-welding spots; 16-a press riveting part; 161-riveting limit bulges; 162-riveting a limit pit; 2-insulating plastic seat; 21-elastic snap tab.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The contents of the present invention will be further described in detail with reference to the following specific examples, and fig. 1 shows a schematic three-dimensional assembly diagram of a first embodiment of the medium-high speed coaxial rf connector of the present invention, which is mainly composed of a metal conductive seat 1 and an insulating plastic seat 2. The metal conductive seat 1 and the insulating plastic seat 2 are inserted and butted along the direction from right to left.

As shown in fig. 2, 3 and 4, the metal conductive socket 1 is mainly composed of a metal conductive shell 11, a metal conductive sleeve 12, an insulating column 13, a terminal 14 and the like. And the metal conductive shell 11 is composed of a conductive shell body 111 and a plug column 112. The plug column 112 is formed by extending the left sidewall of the conductive shell body 111 to the left, and a first accommodating cavity 1121 is disposed therein. The metal conductive sleeve 12 is inserted into and fixed in the first accommodating cavity 121, and a second accommodating cavity 121 is formed along the length direction thereof. The connecting terminal 14 is inserted into and fixed to the insulating column 13, and is integrally inserted into the second accommodating cavity 121. The connection terminal 14 is formed by sequentially connecting a female socket insertion section 141 and a PCB board connection section 142, and is formed in an "L" shape as a whole. The insulating column 13 is composed of a sheathing function section 131 and an extension limiting section 132. The extension limiting section 132 is formed by extending and bending the sheathing function section 131. A through-hole 1311 is provided in the set function section 131. The female socket insertion section 141 is inserted into and fixed to the through insertion hole 1311. The side wall of the extension limiting section 132 is provided with a limiting slot 1321 penetrating through the through hole for placing and fixing the PCB board connecting section 142. Thus, (as shown in fig. 5-13), in the actual use process of the high-speed coaxial rf connector, when the PCB board connecting section 142 is acted by an external force, the existence of the limiting slot 1321 can effectively prevent the PCB board connecting section 142 from twisting, and avoid the PCB board connecting section 142 from swinging along the left and right directions, thereby ensuring that the included angle of the PCB board connecting section relative to the female socket inserting section 141 is always kept at a determined value, and further ensuring that the high-speed coaxial rf connector has excellent high-frequency performance, so as to ensure the reliability and stability of the signal transmission process.

Generally, the fixing of the PCB board connecting section 142 in the retaining slot 1321 can be achieved in various ways, for example, by filling adhesive in the retaining slot 1321. However, the construction method has the problems of complicated construction steps, poor high temperature resistance of the adhesive layer, inconvenience in cleaning after the adhesive overflows, and the like. In view of this, a preferred embodiment is proposed in this example, specifically as follows: after the terminal 14 is positioned with respect to the insulating column 13, the PCB board connecting section 142 is fixed in the limiting slot 1321 by spot welding, so that reliable positioning can be achieved, and a series of welding spots 15 are uniformly distributed along the length direction of the limiting slot 1321 (as shown in fig. 14).

Generally, in order to ensure the fixing reliability of the insulating column 13 and the metal conductive sleeve 12 and prevent the loosening phenomenon from occurring during the use process, the insulating column 13 and the metal conductive sleeve 12 are assembled in an interference fit manner, so that the process of inserting the insulating column 13 is very difficult to operate, the assembly process is time-consuming and labor-consuming, the assembly efficiency of the insulating column 13 is greatly reduced, and the outer side wall of the insulating column 13 is very easily scratched during the process of penetrating into the metal conductive sleeve 12. In view of this, a preferred solution is proposed in the present embodiment, specifically as follows: the sleeving function section 131 of the insulating column 13 is provided with an abutting convex line 1312. The abutting ribs 1312 extend along the length direction of the set functional section 131, and the number of the abutting ribs is set to be plural, and the abutting ribs are circumferentially and uniformly distributed around the central axis of the set functional section 131. During the process of inserting the sleeve-setting functional segment 131 into the metal conductive sleeve 12, the abutting convex strip 1312 is elastically deformed in a self-adaptive manner, so as to elastically abut against the second accommodating cavity 121 (as shown in fig. 3, 4, 9-12). Thus, not only is the smooth insertion of the insulating rod 13 into the conductive metal sleeve 12 ensured, but also the scratching of the outer wall thereof is effectively prevented.

As a further improvement of the above-described technical solution, an insertion slope 13121 (as shown in fig. 12) may be provided at the insertion end of the abutting protrusion 1312. The presence of the lead-in chamfer 13121 makes it possible to provide a certain self-alignment of the insulating column 13 itself when it is inserted, thus relaxing its requirements on the precision of the assembly alignment and also facilitating a smoother sliding of the abutment rib 1312 itself into the second housing chamber 121.

Generally speaking, a plurality of snap-fit connection methods can be used between the metal conductive seat 1 and the insulating plastic seat 2 to achieve the combination of the two, however, a snap-fit connection method is proposed herein, which has a simple structural design, is convenient for manufacturing and forming, and ensures high connection reliability and stability between the metal conductive seat 1 and the insulating plastic seat 2, as follows: at least two retaining grooves 1122 are provided around the peripheral side wall of the mating post 112. The limit grooves 1122 are circumferentially and uniformly distributed along the central axis of the plug post 112, and correspondingly, at least two elastic engagement pieces 21 (shown in fig. 3, 5, 6, and 7) having an orientation and an outer shape matching the limit grooves 1122 are disposed on the side wall of the insulating plastic base 2. Through adopting the above technical scheme to set up, in the process that the metal conducting seat 1 is inserted into the insulating plastic seat 2, the elastic clamping sheet 21 is always attached to the outer side wall of the inserting column 112 to slide until the elastic clamping sheet slides into the corresponding limiting groove 1122, so that the metal conducting seat 1 has a reliable connection relation relative to the insulating plastic seat 2.

In the prior art, the metal conductive sleeve 12 is usually assembled and fixed with the plug column 112 in an interference fit manner. However, this approach has the following disadvantages: in the manufacturing and forming process, the metal conductive sleeve 12 and the metal conductive shell 11 are required to have higher dimensional accuracy, so that the manufacturing and forming cost is increased. In addition, the interference magnitude in the actual assembly process is very difficult to control, and when the interference magnitude is large, the expansion deformation phenomenon of the insertion column 112 matched with the metal conductive sleeve 12 is easily caused, so that the smooth proceeding of the butt joint process of the metal conductive seat 1 and the insulating plastic seat 2 is influenced; when the interference is too small, the metal conductive sleeve 12 is easily separated from the first accommodating cavity 1121 of the insertion post 112 during the actual use process, so as to affect the normal operation of the signal transmission process. In view of this, fig. 15 shows a schematic structural diagram of a second embodiment of the medium-high speed coaxial rf connector of the present invention, which is different from the first embodiment in that: the metal conductive socket 1 further includes a press-riveting portion 16 formed between the metal conductive sleeve 12 and the insertion post 112. The press-riveting portion 16 is composed of a press-riveting limit protrusion 161 formed on a side wall of the metal conductive sleeve 12 and a press-riveting limit recess 162 formed on a side wall of the first accommodating cavity 1121 (as shown in fig. 16 and 17).

The molding process of the press riveting part is approximately as follows: the press-riveting limiting recess 162 is formed in the first accommodating cavity 1121 in advance. The metal conductive sleeve 12 is inserted into the first accommodating cavity 1121 from left to right until the right end surface of the metal conductive sleeve critically covers the press-riveting limiting concave pit 162, and then the left end of the metal conductive sleeve 12 is limited and abutted to prevent the metal conductive sleeve from generating an axial movement phenomenon in the subsequent forming process. Then, the profiling pressing head is inserted into the first accommodating cavity 1121 from right to left until it abuts against the right end surface of the metal conductive sleeve 12, and continues to apply pressure, so as to form a press-riveting limiting protrusion 161 corresponding to the press-riveting limiting recess 162 on the peripheral side wall of the metal conductive sleeve 12.

Finally, in order to reduce the difficulty of forming the rivet pressing limit protrusion 161 and the rivet pressing limit recess 162 and reduce the force required to be applied to the profiling ram, the conductive metal shell 11 is preferably cast from a zinc alloy having a low yield strength and a good rivet pressing deformability.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A high-speed coaxial radio frequency connector comprises a metal conductive seat and an insulating plastic seat; the metal conductive seat and the insulating plastic seat are in inserted joint and butt joint along the direction from right to left; the metal conductive seat comprises a metal conductive shell, a metal conductive sleeve, an insulating column and a wiring terminal; the metal conductive shell comprises a conductive shell body and an inserting column; the plug column is formed by continuously extending the left side wall of the conductive shell body leftwards, and a first accommodating cavity is formed in the plug column; the metal conductive sleeve is arranged in the first accommodating cavity in a penetrating way and is fixed in the first accommodating cavity, and a second accommodating cavity is formed in the length direction of the metal conductive sleeve; the wiring terminal penetrates through and is fixed in the insulating column, and the wiring terminal is integrally arranged in the second accommodating cavity; the connecting terminal is formed by sequentially connecting a female socket insertion section and a PCB connecting section and is integrally L-shaped, and is characterized in that the insulating column is formed by a sleeving function section and an extension limiting section; the extension limiting section is formed by extending and bending the sleeved functional section; the sleeving function section is provided with a through jack; the female seat inserting section is inserted and fixed in the through penetrating hole; the side wall of the extension limiting section is provided with a limiting clamping groove communicated with the through insertion hole so as to be used for placing and fixing the PCB connecting section.

2. The high-speed coaxial radio frequency connector according to claim 1, wherein a series of welding points are uniformly distributed along the length direction of the limiting clamping groove so as to realize the welding fixation of the limiting clamping groove and the PCB board connecting section.

3. The high-speed coaxial radio frequency connector according to claim 2, wherein an abutting convex strip is arranged on the sheathing function section; the abutting convex strips extend along the length direction of the sleeved functional section, the number of the abutting convex strips is multiple, and the abutting convex strips are uniformly distributed in the circumferential direction around the central axis of the sleeved functional section; in the process that the sleeving function section is inserted into the metal conductive sleeve, the abutting convex strip is subjected to self-adaptive elastic deformation, so that the elastic abutting of the second accommodating cavity is realized.

4. The high-speed coaxial RF connector of claim 3, wherein a lead-in ramp is provided at the insertion end of the abutment rib.

5. The high-speed coaxial radio frequency connector according to any one of claims 1 to 4, wherein the metal conductive socket further comprises a press rivet portion formed between the metal conductive sleeve and the plug post; the pressure riveting portion is formed by a pressure riveting limiting protrusion formed on the side wall of the metal conductive sleeve and a pressure riveting limiting pit formed on the side wall of the first accommodating cavity.

6. The high speed coaxial radio frequency connector of claim 5, wherein the metallic conductive shell is cast from a zinc alloy.

7. The high-speed coaxial radio frequency connector according to claim 5, wherein at least two limiting grooves are provided around a peripheral side wall of the plug post; each limiting groove is circumferentially and uniformly distributed along the central axis of the insertion column, and correspondingly, at least two elastic clamping sheets with the directions and the appearances matched with the limiting grooves are arranged on the side wall of the insulating plastic seat.

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