CN110970776A

CN110970776A - Radio frequency plug

Info

Publication number: CN110970776A
Application number: CN201911297279.3A
Authority: CN
Inventors: 张自财
Original assignee: Kunshan Leijiang Communication Technology Co ltd
Current assignee: Kunshan Leijiang Communication Technology Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-04-07
Anticipated expiration: 2039-12-16
Also published as: CN110970776B

Abstract

A radio frequency plug comprises an insulating base body integrally formed with a metal insert, an insulating block integrally formed with a plurality of conductive terminals, a cable assembly welded with the conductive terminals, and a shielding shell coated outside the insulating base body and the insulating block, the insulating base body comprises a butt joint end which is provided with an inner inserting space in the vertical direction and a pair of extension arms which are formed by extending backwards from the butt joint end, the metal insert comprises a plate body part, two transverse sides of the plate body part are bent upwards and are formed in the extension arm, an assembly space communicated with the inner insertion space is formed on the upper surface of the metal insert, the insulating block and the conductive terminals on the insulating block are assembled and fixed in the assembly space downwards, the conductive terminal comprises a holding part formed in the insulating block and an elastic contact part which extends forwards from the holding part and is suspended in the inner insertion space. The radio frequency plug can effectively reduce the requirement on manufacturing precision and improve the yield.

Description

Radio frequency plug

Technical Field

The present application relates to the field of rf connectors, and more particularly, to an rf plug.

Background

A PCB of an existing mobile phone generally has a radio frequency connector connected to a coaxial cable to transmit radio frequency signals, such as antenna signals and high frequency signals between different boards; in the 5G communication era, multi-antenna transmission is required, and the traditional single-channel radio frequency connector cannot meet the requirement; in the existing alternatives, a technical solution for implementing multi-channel transmission of antenna signals by using a board-to-board connector appears.

The patent No. 201910206829 to X of the people's republic of china discloses a cable connector device for transmitting multi-channel antenna signals through coaxial line combination. The insulating body and the conductive terminal are integrally formed in the insulating body, a contact cantilever for accommodating the conductive terminal needs to be formed in a terminal groove when the insulating body and the conductive terminal are integrally formed in an injection molding mode, and a plastic barrier needs to be formed between the contact cantilevers. The distance between the conductive terminals is very small, a very high-precision mold is needed when the partition is formed, and the mold parts are very small and easy to damage. Meanwhile, the shielding shell needs to be bent for multiple times when being wrapped outside the insulating body, and the operation is performed when part of the shielding shell is wrapped outside the insulating body in the bending process, so that the processing and assembling difficulty is very high.

Disclosure of Invention

Therefore, there is a need for a radio frequency plug that reduces the machining precision of the mold required for manufacturing the product, and reduces the difficulty of manufacturing and manufacturing the product, thereby increasing the yield.

In order to solve the above technical problems, the present application provides a radio frequency plug, which includes an insulating base integrally formed with a metal insert, an insulating block integrally formed with a plurality of conductive terminals, a cable assembly welded to the conductive terminals, and a shielding housing covering the insulating base and the insulating block, the insulating base body comprises a butt joint end which is provided with an inner inserting space in the vertical direction and a pair of extension arms which are formed by extending backwards from the butt joint end, the metal insert comprises a plate body part, two transverse sides of the plate body part are bent upwards and are formed in the extension arm, an assembly space communicated with the inner insertion space is formed on the upper surface of the metal insert, the insulating block and the conductive terminals on the insulating block are assembled and fixed in the assembly space downwards, the conductive terminal comprises a holding part formed in the insulating block and an elastic contact part which extends forwards from the holding part and is suspended in the inner insertion space.

Preferably, the butt joint end comprises a top wall, a protruding part protruding downwards from the middle position of the top wall, a plurality of partition columns extending backwards from the protruding part, and terminal grooves formed between the partition columns, and the insertion space is located behind the partition columns; the shielding shell comprises an upper cover plate covering the insulating base and the insulating block and a shielding frame surrounding the front side and the transverse outer side of the insulating base, and an outer plug-in space is formed between the protruding part and the shielding frame.

Preferably, the conductive terminal further includes a holding portion formed in the insulating block and a solder leg formed by extending from the holding portion backward, the elastic contact portion is formed by extending from the holding portion forward, and the elastic contact portion includes a first elastic arm formed by extending obliquely forward and downward, a second elastic arm formed by bending and extending downward from a front end of the first elastic arm, a third elastic arm formed by extending from a tail end of the second elastic arm obliquely backward and upward, a bent end portion formed by bending a tail end of the third elastic arm forward and upward, and a contact portion formed at a bent position of the third elastic arm and the bent end portion.

Preferably, a portion of the first resilient arm, a portion of the second resilient arm, and a portion of the third resilient arm of the resilient contact arm are respectively located in the terminal groove and separated by the partition, and the contact portion is exposed rearward in the inner insertion space.

Preferably, the insulating block includes an insulating main body covering the conductive terminal, a backward extending portion formed by extending backward from a rear end of a bottom of the insulating main body, and a clearance portion opened at a bottom of a front end of the insulating main body, and the clearance portion is partially overlapped with the inner insertion space; the metal insert further comprises a clamping part which is bent and extended from the two transverse sides of the plate body part and formed in the extension arm, the clamping part is exposed in the assembly space, the two transverse sides of the rear extension part of the insulating body are provided with clamping blocks which are clamped into the clamping part below the clamping part to fix the insulating block in the insulating seat body.

Preferably, the buckling part comprises a buckling vertical wall and a buckling end part formed by bending the top end of the buckling vertical wall inwards, a buckling space is formed below the buckling end part, and the two transverse sides of the rear extending part of the insulating block are clamped into the buckling space to be fixed.

Preferably, the fixing portion of the conductive terminal is bent obliquely at the rear lower side to form a sunken portion, the solder leg is formed by horizontally extending the rear end of the sunken portion, the conductive terminal comprises a signal terminal and a ground terminal separating the signal terminal, the solder leg of the ground terminal is formed by horizontally extending the rear end of the sunken portion and then bending downward and horizontally extending the rear end of the sunken portion, the solder leg of the ground terminal and the solder leg of the signal terminal are staggered in the vertical direction and the longitudinal direction, the insulating block comprises an insulating main body forming the fixing portion of the conductive terminal, a rear extending portion formed by rearwardly extending the rear end of the bottom of the insulating main body and a space avoiding portion arranged at the bottom of the front end of the insulating main body, and the space avoiding portion is partially overlapped with the inner inserting space.

Preferably, the rear extension portion includes a soldering station supporting the solder leg of the signal terminal, a protrusion separating the soldering station, and solder receiving grooves formed on both lateral sides of the soldering station, the rear end of the sinking portion of the ground terminal is formed in the protrusion, and the solder leg of the ground terminal extends to the rear of the bottom of the protrusion and is electrically contacted with or soldered to the board body portion.

Preferably, the metal insert further comprises clamping parts which are formed in the extension arms by upwards bending the two transverse ends of the metal insert, the clamping parts are located on the upper surfaces of the plate bodies, clamping spaces are formed in the clamping parts, protruding points are formed on the clamping parts in a pressing mode, and the cable assembly is limited in the clamping spaces among the clamping parts in a clamping mode.

Preferably, the cable subassembly includes the cable support and is fixed in a plurality of cables in the cable support, the cable is the coaxial line, the cable support include with the weaving layer centre gripping of cable in lower soldering lug and last soldering lug and fill in the cladding between lower soldering lug and the last soldering lug the conducting resin of weaving layer, lower soldering lug with the upper surface spot welding of the plate body portion of metal insert is fixed, go up the soldering lug with the upper cover plate spot welding of shielding shell is fixed.

This application is through inciting somebody to action the insulating pedestal of the integrative injection moulding of metal insert will the integrative injection moulding insulating block of conductive terminal will again conductive terminal injection moulding's terminal module equipment extremely metal insert and insulating pedestal go up fixedly, avoid in the prior art with metal insert and conductive terminal injection moulding once, need form terminal groove and jube in conductive terminal's elasticity contact arm periphery and lead to mould size to be super little, the precision is too high and cause the processing degree of difficulty big, the fragile technical problem of mould. And the conductive terminals and the metal inserts are all subjected to injection molding and then cut to remove the material belt, so that the automatic production is facilitated.

The insulating block is preliminarily buckled below the buckling end parts by arranging the buckling end parts on the two sides of the assembling space through the metal insert, so that the technical problem that the insulating block is easy to loosen and misplace in subsequent assembling is avoided; meanwhile, the signal terminal and the welding leg of the grounding terminal are arranged in a staggered mode in the vertical direction and the longitudinal direction, and the welding difficulty caused by small size is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

example one

Fig. 1 is a perspective assembly view of the rf plug of the present application;

FIG. 2 is a perspective assembly view of the RF plug of the present application from another angle;

FIG. 3 is an exploded perspective view of the RF plug of the present application;

FIG. 4 is a perspective view of a metal insert of the RF plug of the present application;

fig. 5 is a perspective assembly view of the metal insert and the insulating base of the rf plug of the present application;

fig. 6 is a perspective assembly view of the metal insert and the insulating base of the rf plug of the present application at another angle;

fig. 7 is a perspective assembly view of the conductive terminal and the insulating block of the rf plug of the present application;

fig. 8 is a perspective view of a conductive terminal of the radio frequency plug of the present application;

fig. 9 is a perspective assembly view of the rf plug of the present application with the shield shell removed;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 11 is a cross-sectional view taken along the line B-B in FIG. 1;

fig. 12 is a perspective assembly view of the cable and cable mount of the rf plug of the present application;

fig. 13 is a perspective combination view of the radio frequency plug of the present application after the conductive adhesive is removed from the cable and the cable holder.

Example two

Fig. 14 is a perspective assembly view of the rf plug of the present application;

figure 15 is a perspective view of the upper cover plate of the shield enclosure of the radio frequency plug of the present application;

fig. 16 is a perspective view of a shield frame of a shield housing of the radio frequency plug of the present application.

Description of the main Components

A shielding shell-10; an upper cover plate-11; a cover body-111; flanging-112; a shielding frame-12; a front frame-121; a side frame body-122; an inner fold-123; tail frame-124; a holding portion-125; ribs (grooves) -126; a welding face-127; an insulating base body-20; butt-joint end-21; a bottom wall-211; a projection-212; barrier-213; terminal slot-214; an extension arm-22; a first arm portion-221; a second arm portion-222; a metal insert-30; a plate body portion-31; a front plate portion-311; a rear plate portion-312; a clamping portion-32; a first vertical wall-321; a second vertical wall-322; bending the top part-323; a latch portion-33; a snap vertical wall-331; a snap end-332; a snap space-333; a conductive terminal-40; signal terminal-40 a; a ground terminal-40 b; a holding portion-41; a solder tail-42; a step-421; a resilient contact arm-43; a first resilient arm-431; a second resilient arm-432; a third resilient arm-433; bent end-434; a contact portion-435; a countersink-44; a cable holder-50; lower bonding pad-51; a clamping bottom wall-511; a vertical portion-512; a lower convex hull-513; upper bonding pad-52; a clamping top wall-521; an upper convex hull-522; conductive adhesive-53; an insulating block-60; an insulating body-61; a rear extension-62; a welding table-621; a bump-622; a clamping block-623; a tin containing groove-624; an evacuation portion-63; a cable-C; center conductor-C1; inner insulating layer-C2; knit-C3; outer insulating layer-C4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments.

The definition of the direction in the present application is based on fig. 1, and the X direction is the front of the front-back direction (longitudinal direction), the Y direction is the right of the left-right direction (lateral direction), and the Z direction is the upper of the up-down direction (left-right direction).

Example one

Fig. 1 to 13 are attached drawings of the first embodiment, and show the product structure of the first embodiment in detail.

Referring to fig. 1 to 3, a radio frequency plug according to the present invention includes an insulating base 20, a metal insert 30 formed in the insulating base 20, a terminal module assembled in the insulating base 20, a cable assembly, and a shielding shell 10 covering the insulating base 20.

Referring to fig. 4, 5 and 6, the metal insert 30 includes a plate 31 having a front plate 311 and a rear plate 312, a locking portion 33 formed by bending and extending upward from two lateral sides of the front plate 311, and a clamping portion 32 formed by bending and extending upward from two lateral sides of the rear plate 312. The locking part 33 includes a locking vertical wall 331 bent upward from both lateral sides of the front plate 311 and extending vertically, and a locking end 332 bent inward from the locking vertical wall 331, wherein a locking space 333 is formed below the locking end 332. The clamping portion 32 includes a first vertical wall 321 formed by bending upward from two lateral sides of the rear plate portion 312 and extending vertically, a second vertical wall 322 formed by bending reversely from a top end of the first vertical wall 321 and extending toward an upper surface of the rear plate portion 312, and a bent top 323 connecting the first and second

vertical walls

321, 322.

The insulation base body 20 includes a mating end 21 and a pair of extension arms 22 extending backward from two lateral sides of the mating end 21. The mating terminal 21 includes a top wall 211, a protrusion 212 extending downward from the top wall 211, an inner plug space 23 formed through the top wall 211 and the protrusion 212, a plurality of partitions 213 extending rearward from the protrusion 212 into the inner plug space 23, and a terminal groove 214 formed between the partitions 213. The extension arm 22 includes a first arm 221 extending rearward from the bottom wall mating end 21 and a second arm 222 extending rearward from the first arm 221. The width between the pair of first arm portions 221 is smaller than the width between the pair of second arm portions 222.

The metal insert 30 is formed on the pair of extension arms 22, and the pair of engaging portions 33 and the holding portion 32 are formed in the first wall portion 221 and the second wall portion 222, respectively. The space between the plate portion 31 and the pair of locking portions 33 constitutes an assembly space S2 in which the terminal module is assembled. The space of the plate body portion 31 between the pair of the clamping portions 32 constitutes a clamping space S3 where the cable assembly is assembled. The engaging end portions 332 of the pair of engaging portions 33 and the second vertical walls 322 of the pair of holding portions 32 are exposed in the assembling space S2 and the holding space S3, respectively. The assembling space S2 and the clamping space S3 are both on the upper surface of the plate body 31, and the assembling space S2 is in forward communication with the inner insertion space 23. The insulating housing 20 further includes a covering portion 24 formed to cover the bottom surface of the front plate portion 311, so that the front plate portion 311 is embedded in the insulating housing 20. The second vertical wall 322 is stamped and formed with a convex point 324 protruding into the clamping space S3.

As shown in fig. 2, fig. 3, and fig. 7 to fig. 11, the terminal module includes a plurality of conductive terminals 40 and an insulating block 60 integrally formed with the conductive terminals 40. The conductive terminal 40 includes a number of signal terminals 40a and ground terminals 40b that space the signal terminals 40a apart. Each conductive terminal 40 includes a holding portion 41 formed in the insulating block 60, a solder leg 42 extending backward from the holding portion 41, and a resilient contact arm 43 extending forward from the holding portion 41. The elastic contact arm 43 is suspended in the inner insertion space 23, and the elastic contact arm 43 includes a first elastic arm 431 extending obliquely forward and downward, a second elastic arm 432 bent and extending downward from the front end of the first elastic arm 431, a third elastic arm 433 extending obliquely rearward and upward from the end of the second elastic arm 432, a bent end portion 434 bent forward and upward from the end of the third elastic arm 433, and a contact portion 435 formed at the bent position of the third elastic arm 433 and the bent end portion 434. The rear end of the fixing part 41 extends obliquely downwards to form a sinking part 44, and the welding leg 42 is formed by bending the rear end of the book sinking part 44 and then extending horizontally. The width of the depressed portion 44 is smaller than that of the holding portion 41. The solder leg 42 of the ground terminal 40b is formed by bending downward the tail portion of the holding portion 41 and then extending backward, and the horizontal position of the solder leg 42 of the ground terminal 40b is lower than that of the solder leg 42 of the signal terminal 40 a. Thus, a stepped portion 421 is formed at the rear end of the holding portion 41 of the ground terminal 40b by bending downward.

The insulating block 60 includes an insulating main body 61 covering the holding portion 41 of the conductive terminal 40, a rear extending portion 62 extending from the rear end of the bottom of the insulating main body 61 to the rear, and a clearance portion 63 opening at the bottom of the front end of the insulating main body 61. The space-avoiding portion 63 partially overlaps the inner insertion space 23, a portion of the first elastic arm 431, a portion of the second elastic arm 432, and a portion of the third elastic arm 433 of the elastic contact arm 43 are respectively partitioned by the partition 213, and the contact portion 435 is exposed rearward in the inner insertion space 23. The solder tail 42 of the signal terminal 40a extends to the upper side of the rear extension portion 62, and the solder tail 42 of the ground terminal 40b extends to the upper surface of the board body portion 31 for electrical contact or soldering. Soldering lands 621 are formed at positions of the extending portions 62 corresponding to the soldering tails 42 of the signal terminals 40a, protrusions 622 are disposed between the soldering lands 621, the holding portions 41 of the ground terminals 40b are partially covered in the protrusions, and solder receiving grooves 624 are formed by downward recessing of two lateral sides of the soldering lands 621. Latch 623 for latching into the latching space 333 is formed at both lateral sides of the rear extension 62 so that the terminal module is inserted into the assembling space S2 to be preliminarily positioned.

The shielding shell 10 includes an upper cover plate 11 covering the insulating base 20 and the insulating block 60, and a shielding frame 12 bent downward from the front end of the upper cover plate 11 and then wrapped around the insulating base 20. An outer plugging space S1 is formed between the protrusion 212 of the insulating base 20 and the shielding outer frame 12, and the top surface of the outer plugging space S1 is the top wall 211.

Referring to fig. 12 and 13, the cable assembly includes a cable holder 50 and a plurality of cables C fixed in the cable holder 50, where the cables C are coaxial cables, and each cable C includes a central conductor C1, an inner insulating layer C2 covering the central conductor C1, a braid layer C3 covering the outer periphery of the inner insulating layer C2, and an outer insulating layer C4 covering the braid layer C3. The cable holder 50 includes a lower lug 51 and an upper lug 52 for holding the braid C3 of the cable C therebetween, and a conductive adhesive 53 filled between the lower lug 51 and the upper lug 52 and covering the braid C3. The lower soldering lug 51 comprises a clamping bottom plate 511, vertical parts 512 formed by bending and extending upwards from two transverse ends of the clamping bottom plate 511, and a lower convex bag 513 formed by stamping upwards from the clamping bottom plate 511 and used for spacing the woven layer C3. The upper soldering lug 52 is a clamping top plate 521, and the clamping top plate 521 is punched downwards to form an upper convex bag 522 for spacing the woven layer C3. The two transverse ends of the clamping top plate 521 are clamped between the vertical parts 512 of the lower soldering lug 51 and are welded and fixed with the vertical parts 512. The upper convex hull 522 and the lower convex hull 513 space the braid C3 apart to facilitate positioning of the cable C.

After the cable C is fixed by the cable holder 50, the cable holder 50 is inserted into the clamping space S3 above the plate portion 31, so that the vertical portion 512 is clamped between the pair of clamping arm portions 32 of the metal insert 30, and the vertical portion 512 is electrically contacted with the protruding point 324 on the second vertical wall 322 and grounded.

The center conductor C1 of the cable C extends above the solder tail 42 of the signal terminal 40a and is soldered. Subsequently, the shielding shell 10 is covered outside the insulating base 20, the upper soldering terminal 52 is fixed to the upper cover plate 11 of the shielding shell 10 by spot welding, and the lower soldering terminal 51 is fixed to the upper surface of the plate body portion 31 of the metal insert 30 by spot welding.

In the present embodiment, the metal insert 30 is integrally injection molded into the insulating base 20, the conductive terminal 40 is integrally injection molded into the insulating block 60, and then the terminal module injection molded by the conductive terminal 40 is assembled onto the metal insert 30 and the insulating base 20 to be fixed, so as to avoid the technical problems that in the prior art, the terminal groove 214 and the barrier 213 need to be formed at the periphery of the elastic contact arm 43 of the conductive terminal 40 to form the terminal groove 214 and the barrier 213, which results in an ultra-small mold size, an over-high precision, a large processing difficulty and a damage to the mold. And the conductive terminals 40 and the metal insert 30 are cut to remove the material belt after injection molding, so that the automatic production is facilitated.

In this embodiment, the metal insert 30 is provided with the fastening end portions 332 at two sides of the assembling space S2 to initially fasten the insulating block 60 below the fastening end portions 332, so as to avoid the technical problem that the insulating block 60 is easy to loosen and dislocate in the subsequent assembling; meanwhile, the soldering feet 42 of the signal terminal 40a and the grounding terminal 40b are arranged in a staggered mode in the vertical direction and the longitudinal direction, and the soldering difficulty caused by small size is reduced.

Example two

Referring to fig. 9 and 14 to 16, the second embodiment is different from the first embodiment in the structural difference of the shielding shell 10.

The shielding shell 10 of this embodiment includes an upper cover plate 11 and a shielding frame 12 which are separate structures, the upper cover plate 11 covers the insulating base 20 and the insulating block 60, and the upper cover plate 11 includes a cover 111 and a flange 112 formed by bending downward from the outer periphery of the cover 111. The bottom surface of the flange 112 is a horizontal surface. The shielding frame 12 includes a front frame 121 surrounding the front end of the mating end 21 of the insulating housing 20, a side frame 122 bent backward from the two lateral ends of the front frame 121 and extending to cover the lateral periphery of the mating end 21, an inward-folded portion 123 bent inward from the side frame 122 and clamping the first arm 221 of the extension arm 22, a tail frame 124 extending backward from the rear end of the inward-folded portion 123 to the outside of the second arm 222, and a supporting portion 125 bent inward from the bottom of the tail frame 124 and covering the bottom surface of the plate portion 31 of the metal insert 30. Ribs or grooves 126 are stamped and formed on the wall of the side frame 122 to engage with mating rf sockets (not shown). The top surface of the shielding frame 12 is provided with a plurality of welding surfaces 127, and the top surface of the shielding frame 12 is attached to the lower surface of the cover body 111 of the upper cover plate 11 and fixed by spot welding.

During assembly, the upper cover plate 11 and the shielding frame 12 are directly and respectively wrapped on the upper side and the lower side of the insulating base 20, and then spot welding is performed on the upper surface of the upper cover plate 11 to fix the welding surface 127 of the upper cover plate 11 and the shielding frame 12 into a whole. The flange 112 of the upper cover plate 11 is located on the periphery of the shielding frame 12.

In this embodiment, through will shielding shell 10 designs into split type upper cover plate 11 and shielding frame 12 structure, independent stamping forming upper cover plate 11 with shielding frame 12 simple process, the requirement to the bending precision reduces, and need not the equipment shielding shell 10's in-process, no longer need right shielding shell 10 bends, greatly reduced assembly process's the degree of difficulty and machining precision.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A radio frequency plug is characterized by comprising an insulating base body which is integrally formed with a metal insert, an insulating block which is integrally formed with a plurality of conductive terminals, a cable assembly which is welded with the conductive terminals and a shielding shell which is coated outside the insulating base body and the insulating block, the insulating base body comprises a butt joint end which is provided with an inner inserting space in the vertical direction and a pair of extension arms which are formed by extending backwards from the butt joint end, the metal insert comprises a plate body part, two transverse sides of the plate body part are bent upwards and are formed in the extension arm, an assembly space communicated with the inner insertion space is formed on the upper surface of the metal insert, the insulating block and the conductive terminals on the insulating block are assembled and fixed in the assembly space downwards, the conductive terminal comprises a holding part formed in the insulating block and an elastic contact part which extends forwards from the holding part and is suspended in the inner insertion space.

2. The radio frequency plug of claim 1, wherein the mating end includes a top wall, a protrusion protruding downward from a middle position of the top wall, a plurality of partitions extending rearward from the protrusion, and terminal grooves formed between the partitions, and the insertion space is located behind the partitions; the shielding shell comprises an upper cover plate covering the insulating base and the insulating block and a shielding frame surrounding the front side and the transverse outer side of the insulating base, and an outer plug-in space is formed between the protruding part and the shielding frame.

3. The rf plug of claim 2, wherein the conductive terminal further includes a holding portion formed in the insulating block and a solder tail extending backward from the holding portion, the elastic contact portion extends forward from the holding portion, and the elastic contact portion includes a first elastic arm extending obliquely forward and downward, a second elastic arm extending downward from a front end of the first elastic arm, a third elastic arm extending obliquely backward and upward from a rear end of the second elastic arm, a bent end portion formed by bending forward and upward from a rear end of the third elastic arm, and a contact portion formed at a bent position of the third elastic arm and the bent end portion.

4. The radio frequency plug of claim 3, wherein a portion of the first resilient arm, a portion of the second resilient arm, and a portion of the third resilient arm of the resilient contact arm are respectively located in the terminal slot and are separated by the partition, and the contact portion is rearwardly exposed in the inner plug-in space.

5. The radio frequency plug according to claim 1 or 4, wherein the insulating block includes an insulating body covering the conductive terminal, a rear extending portion extending rearward from a rear end of a bottom of the insulating body, and a clearance portion provided at a bottom of a front end of the insulating body, the clearance portion partially overlapping the inner insertion space; the metal insert further comprises a clamping part which is bent and extended from the two transverse sides of the plate body part and formed in the extension arm, the clamping part is exposed in the assembly space, the two transverse sides of the rear extension part of the insulating body are provided with clamping blocks which are clamped into the clamping part below the clamping part to fix the insulating block in the insulating seat body.

6. The radio frequency plug according to claim 5, wherein the locking portion includes a locking vertical wall and a locking end portion bent inward from a top end of the locking vertical wall, a locking space is formed below the locking end portion, and both lateral sides of the rear extending portion of the insulating block are locked into the locking space and fixed.

7. The RF plug of claim 4, wherein the holding portion of the conductive terminal is bent downward and rearward to form a depressed portion, the solder tail extends horizontally from a rear end of the depressed portion, the conductive terminal includes a signal terminal and a ground terminal separating the signal terminal, the solder tail of the ground terminal extends horizontally from the rear end of the depressed portion and then is bent downward and then extends horizontally, the solder tail of the ground terminal and the solder tail of the signal terminal are misaligned in a vertical direction and a longitudinal direction, the insulating block includes an insulating body forming the holding portion of the conductive terminal, a rearward extending portion extending rearward from a rear end of a bottom of the insulating body, and a clearance portion opened at a bottom of a front end of the insulating body, and the clearance portion overlaps the inner insertion space.

8. The rf plug of claim 7, wherein the rear extension includes a pad supporting the pad of the signal terminal, a protrusion separating the pad, and solder receiving slots formed on lateral sides of the pad, the rear end of the ground terminal is formed in the protrusion, and the pad of the ground terminal extends behind the bottom of the protrusion and is electrically contacted or soldered to the board portion.

9. The rf plug of claim 8, wherein the metal insert further includes a clamping portion bent upward at two lateral ends thereof and formed in the extension arm, the clamping portion is located on the upper surface of the plate portion to form a clamping space, the clamping portion is exposed in the clamping space, the clamping portion is stamped to form a protruding point, and the cable assembly is clamped and retained in the clamping space between the clamping portions.

10. The radio frequency plug of claim 9, wherein the cable assembly includes a cable holder and a plurality of cables fixed in the cable holder, the cables are coaxial cables, the cable holder includes a lower soldering lug and an upper soldering lug for clamping a braid of the cable therein and a conductive adhesive filled between the lower soldering lug and the upper soldering lug for covering the braid, the lower soldering lug is fixed to an upper surface of the plate portion of the metal insert by spot welding, and the upper soldering lug is fixed to an upper cover plate of the shield shell by spot welding.