CN211088578U - Radio frequency plug - Google Patents

Abstract

A radio frequency plug comprises an insulating base body which is integrally formed with a metal insert, a terminal module and a shielding shell which is coated outside the insulating base body, 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 butt joint end comprises a top wall, a bulge part formed by downwards bulging from the top wall and transverse walls formed at the two transverse sides of the bulge part, the inner splicing space is positioned between the two transverse walls, the metal insert comprises a plate body part positioned between the extension arms and a clamping part formed by bending and extending upwards from the two transverse sides of the plate body part, the front end of the buckling part of the metal insert is bent towards the transverse outer side and extends to form a reinforcing metal piece, the reinforcing metal piece is integrally formed on the transverse wall body, and the reinforcing metal piece comprises a friction main body coated on the outer side surface of the transverse wall body. The radio frequency plug can prevent damage to the protruding portion of the insulating base body.

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. Including insulator, integrated into one piece in conductive terminal and sheetmetal, shielding shell and cable assembly in the insulator, insulator includes the butt joint end, the downward protrusion of butt joint end is formed with the bulge, the bulge docks in inserting the socket as the butt joint part, and the periphery of bulge is the plastic structure, and the socket corresponds position department for fixed iron-clad, when inserting, causes the plastic structure of bulge periphery impaired easily and leads to the fact to use badly. Meanwhile, when the insulating body and the conductive terminal are integrally molded by injection, a terminal groove needs to be formed to accommodate the contact cantilever of the conductive terminal, 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.

SUMMERY OF THE UTILITY MODEL

Therefore, there is a need to provide a radio frequency plug to enhance the strength of the mating end of the radio frequency plug and prevent the plastic outer wall from being damaged when the radio frequency plug is mated with the socket.

In order to solve the technical problem, the application provides a radio frequency plug, which comprises an insulating base body, a terminal module and a shielding shell, wherein the insulating base body is integrally formed with a metal insert, the shielding shell is coated outside the insulating base body, the insulating base body comprises a butt joint end and a pair of extension arms, the butt joint end is provided with an inner insertion space in the vertical direction, the pair of extension arms are formed by extending the butt joint end backwards, the butt joint end comprises a top wall, a protruding part and transverse walls, the protruding part is formed by protruding the top wall downwards, the transverse walls are formed on the two transverse sides of the protruding part, the inner insertion space is positioned between the two transverse walls, the metal insert comprises a plate body part and a clamping part, the plate body part is positioned between the extension arms, the clamping part is formed by bending upwards and extending the two transverse sides of the plate body part, the front end of the clamping part of, the reinforcing metal piece comprises a friction main body coated on the outer side face of the transverse wall body.

Preferably, the friction main body comprises a transverse wall portion coated on the transverse outer side surface of the transverse wall body and a longitudinal wall portion coated on the longitudinal outer side surface of the transverse wall body, the reinforcing metal piece further comprises an electric connection portion formed by vertically bending the top end of the transverse wall portion and extending transversely outwards, the buckling portion and the longitudinal wall portion located at the rear end are connected into a whole through a connecting portion, and the connecting portion is of a bending structure.

Preferably, the upper surface of electricity portion exposes in the top of roof, shielding shell is including covering in upper cover plate on the insulating pedestal upper surface and enclosing locate the shielding frame of insulating pedestal front side and horizontal both sides, the upper surface of electricity portion with upper cover plate electric contact, electricity portion with the upper cover plate spot welding is fixed as an organic whole.

Preferably, the longitudinal wall part of the front side of the reinforcing metal piece is bent backwards vertically to be embedded into the transverse wall body for fixing.

Preferably, an outer plug-in space is formed between the protruding part and the shielding frame, the radio frequency plug is butted with a radio frequency socket, the radio frequency socket comprises a socket body provided with a socket outer wall and an island part, a plugging space formed between the island part and the socket outer wall, metal fixing pieces integrally formed at two transverse sides of the socket outer wall and socket terminals integrally formed on the island part and extending out of the socket outer wall, the metal fixing piece is exposed on the inner side surface and the outer side surface of the outer wall of the socket, the bulge part of the butt joint end of the radio frequency plug is inserted into the plugging space, the island of the radio frequency socket is inserted into the inner insertion space of the radio frequency plug, the socket outer wall of the radio frequency socket is inserted into the outer insertion space, the friction main body and the metal surface of the metal fixing piece exposed in the plugging space are in contact friction.

Preferably, the terminal module comprises a plurality of conductive terminals and an insulating block integrally formed with the conductive terminals, the radio frequency plug also comprises a cable assembly welded with the conductive terminal and a shielding shell coated outside the insulating seat body and the insulating block, the metal insert comprises a plate body part, a buckling part and a clamping part, wherein the buckling part and the clamping part are bent upwards from the two transverse sides of the plate body part and are formed in the extension arm, an assembly space communicated with the inner insertion space is formed between the buckling parts on the upper surface of the metal insert, the terminal module is assembled and fixed in the assembling space downwards, the conductive terminal comprises a holding part formed in the insulating block and an elastic contact arm which extends forwards from the holding part and is suspended in the inner inserting space, the upper surface of the plate body part is positioned between the clamping parts to form a clamping space communicated with the assembling space.

Preferably, the butt joint end further includes a plurality of barriers formed by extending from the rear of the protruding portion, and terminal grooves formed between the barriers, the inner insertion space is located behind the barriers, and the protruding portion further includes a front side wall located in front of the barriers and a rear side wall located behind the inner insertion space; 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 tail formed by extending from the holding portion backward, the elastic contact arm extends forward from the holding portion, the elastic contact arm includes a first elastic arm extending obliquely forward and downward, a second elastic arm formed by bending and extending from a front end of the first elastic arm downward, 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, a portion of the first elastic arm, a portion of the second elastic arm, and a portion of the third elastic arm of the elastic contact arm are located in the terminal groove and separated by the partition, and the contact portion is exposed backward 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 provided at a bottom of a front end of the insulating main body, and the clearance portion is partially overlapped with the inner insertion space.

Preferably, the radio frequency plug further includes a cable assembly assembled in the clamping space, the cable assembly includes a cable bracket and a plurality of cables fixed in the cable bracket, the cables are coaxial cables, the cable bracket includes a lower soldering lug and an upper soldering lug which clamp the braid of the cable in the cable and a soldering tin which is filled between the lower soldering lug and the upper soldering lug and coats the braid, the lower soldering lug is spot-welded and fixed with the upper surface of the plate body of the metal insert, the upper soldering lug is spot-welded and fixed with the upper cover plate of the shielding shell, and the central conductor of the cable extends to the rear extension part and is welded with the soldering lug of the conductive terminal.

This application is through the reinforcement metalwork of integrated into one piece embedding on the horizontal wall body of insulating pedestal bulge makes reinforcement metalwork form the cladding in the friction main part of horizontal wall body periphery inserts at the radio frequency plug during the socket, through the friction main part of reinforcement metalwork with the metal mounting of socket connects the friction, avoid causing horizontal wall body with the metal mounting friction and the problem of damaging easily.

The reinforcing metal part and the metal insert are integrally formed in a punching mode, so that one punching process can be reduced, the number of metal parts subjected to injection molding in the die is reduced, and the material cost of a product is reduced; meanwhile, the insulating base body is connected with the reinforcing metal piece into a whole through the metal insert, so that the structure is more stable.

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 view of an insulating base of the rf plug of the present application;

fig. 6 is a perspective assembly view of the metal insert, the reinforcement metal shell and the insulation base of the rf plug of the present application;

fig. 7 is a perspective assembly view of the metal insert, the reinforcement metal shell, and the insulation base of the rf plug of the present application at another angle;

fig. 8 is a perspective assembly view of the conductive terminal and the insulating block of the rf plug of the present application;

fig. 9 is a perspective view of the conductive terminal of the rf plug of the present application;

FIG. 10 is a perspective view of a reinforcement metal shell of the RF plug of the present application;

fig. 11 is a perspective assembly view of the rf plug of the present application with the shield shell removed;

figure 12 is a perspective assembly view of the shield housing of the radio frequency plug of the present application;

FIG. 13 is a perspective view of a receptacle mated with a radio frequency plug of the present application;

FIG. 14 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 15 is a cross-sectional view taken along the line B-B in FIG. 1;

fig. 16 is a cross-sectional view of the rf plug of fig. 1 mated with the receptacle, taken along the line C-C of fig. 1;

fig. 17 is a perspective assembly view of the cable and cable mount of the rf plug of the present application;

fig. 18 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. 19 is a perspective assembly view of the insulating base, the reinforcing metal shell, and the metal insert of the rf plug of the present application;

fig. 20 is a perspective view of the integral structure of the metal insert and the reinforcing metal shell of the rf plug of the present application;

fig. 21 is a perspective view of another angle of the integral structure of the metal insert and the reinforcing metal shell of the rf 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; front sidewall body-215; back side wall-216; a transverse wall-217; 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; reinforcing the metal shell-70; the lateral wall portion 71; a longitudinal wall portion-72; an electrical connection-73; an insert-portion-74; a spanning portion-75; an inverted hook-78; a connecting portion-79; 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 18 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 and a reinforcing metal shell 70 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 to 7 and 10, 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 protruding portion 212 includes a front wall 215 formed at the front end below the top wall 211, a rear wall 216 formed at the rear end below the top wall 211 and adjacent to the inner insertion space 23, and a pair of lateral walls 217 connecting the front wall 215 and the rear wall 216 at the two lateral sides, respectively. The walls of a pair of said lateral walls 217 in said inner receiving space 23 are recessed laterally outwards to form mating recesses 218. The front wall 215, the rear wall 216 and the transverse wall 217 of the outer periphery of the protruding portion 212 are collectively referred to as the outer wall of the butt end 21. 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.

The reinforcing metal shell 70 is integrally injection-molded on a pair of transverse walls 217 of the insulating base body 20, and the reinforcing metal shell 70 includes a friction main body covering the outer side surfaces of the transverse walls 217, an electric connection portion 73 formed by horizontally bending the friction main body, and an embedded portion 74 formed by reversely bending and extending the bottom of the friction main body. The friction main body comprises a transverse wall part 71 covering the transverse outer side surface of the transverse wall body 217 and a longitudinal wall part 72 which is vertically bent from the longitudinal two ends of the transverse wall part 71 and covers the longitudinal outer side surface of the transverse wall body 217. The electrical connection portion 72 is formed by vertically bending from the top of the lateral wall portion 71 and is exposed to the top surface of the top wall 211 to be electrically connected to the shield case 10 or fixed by spot welding. The embedded portion 74 is formed by bending the bottom of the lateral wall portion 71 in the opposite direction, and forms a spanning portion 75 connecting the bottom of the lateral wall portion 71 and the embedded portion 74, and the bottom surface of the spanning portion 75 is exposed to the bottom surface of the lateral wall 217.

As shown in fig. 2, fig. 3, and fig. 7 to fig. 16, 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 and a shielding frame 12 of a split structure, 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 the 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.

Split type upper cover plate 11 and shielding frame 12 structure are designed to shielding shell 10, stamping forming alone upper cover plate 11 with shielding frame 12 simple process, the requirement to the bending precision reduces, and need not in 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 electric connection portion 73 of the reinforcing metal shell 70 is electrically contacted with the lower surface of the upper cover plate 11, and the electric connection portion 73 is fixed to the upper cover plate 11 by spot welding, so that the relative position of the insulating base 20 and the shielding shell 10 is fixed to avoid deviation.

Referring to fig. 17 and 18, 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.

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 that the technical problems that in the prior art, the terminal groove 214 and the barrier 213 are required 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 ultra-small size of a mold, too high precision, large processing difficulty and easy damage of the mold are solved. 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.

The metal insert 30 is provided with buckle end portions 332 at two sides of the assembling space S2 to initially buckle the insulating block 60 below the buckle end portions 332, so as to avoid the technical problem that the insulating block 60 is easy to loosen and misplace in 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.

Referring to fig. 13 and 16, the socket for inserting the rf plug of the present invention includes a socket body 91 having a socket outer wall 95 and an island 92, a plugging space S4 formed between the island 92 and the socket outer wall 95, metal fasteners 94 integrally formed on two lateral sides of the socket outer wall 95, and a socket terminal 93 integrally formed on the island 92 and extending out of the socket outer wall 95. The metal fixing members 94 are respectively provided with metal surfaces exposed on both inner and outer sides of the socket outer wall 95.

The protruding portion 212 of the mating terminal 21 of the rf plug of the present application is inserted into the inserting space S4, and the island portion 92 of the socket is inserted into the inserting space 23 of the plug, so that the socket terminal 93 and the conductive terminal 40 of the plug are electrically contacted with the contact portion 435 exposed in the inserting space 23. The receptacle outer wall 95 of the receptacle is inserted into the outer insertion space S1 between the protrusion 212 of the plug and the shield frame 12. The friction bodies 71, 72 of the reinforcing metal fitting 70 contact and rub with the metal surface of the metal fixture 94 of the socket exposed in the inserting and extracting space S4, so as to avoid damaging the transverse wall 217 of the protrusion 212. The outer side surface of the metal fixing member 94 is fixed to the inner side surface of the shielding frame 12.

This application makes through the reinforcement metalwork 70 of integrated into one piece embedding on the horizontal wall 217 of insulating pedestal 20 bulge 212 reinforcement metalwork 70 forms the cladding in the friction main part of horizontal wall 217 periphery, inserts at the radio frequency plug during the socket, through the friction main part of reinforcement metalwork 70 with the metal mounting 94 of socket connects the friction, avoids causing horizontal wall 217 with the metal mounting 94 friction and the problem of damaging easily.

Example two

Referring to fig. 19 to 21, the present embodiment is different from the first embodiment in that the reinforcing metal member 70 and the metal insert 30 are formed by integral stamping. Specifically, the reinforcing metal fitting 70 is connected to the latching portion 33 of the metal insert 30 by the longitudinal wall portion 72 located at the rear end, instead of the insertion portion 74 and the spanning portion 75, that is, a connecting portion 79 connecting the longitudinal wall portion 72 is formed by bending outward from the front end of the latching portion 33. The free end of the longitudinal wall 72 at the front end is bent back to form a barb 78 embedded in the transverse wall 217. In this case, in order to avoid the influence of deformation of the terminal module on the lateral wall 217 in the functional design of the locking portion 33, the locking function may not be designed, and the functional attribute represented by the part name herein does not have a binding force to the claims. In the embodiment, the buckling part 33 and the reinforcing metal part 70 are integrally formed by stamping, so that the injection molding is simpler and more practical, and the overall stability of the product is further enhanced.

The reinforcing metal part 70 and the metal insert 30 of the present embodiment are integrally formed by stamping, which not only has the technical effects of the first embodiment, but also reduces one stamping process, reduces the number of metal parts to be injection-molded in the mold, and reduces the material cost of the product; meanwhile, the insulation seat body 20 is connected with the reinforcing metal piece 70 into a whole through the metal insert 30, so that the structure is more stable.

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 (10)

1. A radio frequency plug comprises an insulating base body, a terminal module and a shielding shell, wherein the insulating base body is integrally formed with a metal insert, the shielding shell is coated outside the insulating base body, the insulating base body comprises a butt joint end and a pair of extension arms, the butt joint end is provided with an inner insertion connection space in the vertical direction, the pair of extension arms extend backwards from the butt joint end, the butt joint end comprises a top wall, a protruding part protruding downwards from the top wall and transverse walls formed on the two transverse sides of the protruding part, the inner insertion connection space is positioned between the two transverse walls, the metal insert comprises a plate body part positioned between the extension arms and a buckling part bent upwards and extending from the two transverse sides of the plate body part, the front end of the buckling part of the metal insert is bent towards the transverse outer side and extends to form a reinforcing metal piece, and the reinforcing metal piece is integrally formed on the transverse, the reinforcing metal piece comprises a friction main body coated on the outer side face of the transverse wall body.

2. The radio frequency plug of claim 1, wherein the friction body includes a transverse wall portion covering a transverse outer side surface of the transverse wall body and a longitudinal wall portion covering a longitudinal outer side surface of the transverse wall body, the reinforcing metal member further includes an electrical connection portion formed by bending the top end of the transverse wall portion vertically and extending transversely outward, the buckling portion and the longitudinal wall portion at the rear end are connected as a whole through a connection portion, and the connection portion is a bent structure.

3. The rf plug of claim 2, wherein an upper surface of the electrical connection portion is exposed above the top wall, the shielding housing includes an upper cover plate covering the upper surface of the insulating housing and a shielding frame surrounding the front side and the lateral sides of the insulating housing, the upper surface of the electrical connection portion is in electrical contact with the upper cover plate, and the electrical connection portion and the upper cover plate are fixed together by spot welding.

4. The radio frequency plug of claim 3, wherein the longitudinal wall of the front side of the reinforcing metal piece is bent back vertically to be embedded in the transverse wall for retention.

5. The radio frequency plug of claim 4, wherein an outer plug-in space is formed between the protrusion and the shield frame, the radio frequency plug is in butt joint with a radio frequency socket, the radio frequency socket comprises a socket body provided with a socket outer wall and an island part, a plugging space formed between the island part and the socket outer wall, metal fixing parts integrally formed at two transverse sides of the socket outer wall and socket terminals integrally formed on the island part and extending out of the socket outer wall, the metal fixing piece is exposed on the inner side surface and the outer side surface of the outer wall of the socket, the bulge part of the butt joint end of the radio frequency plug is inserted into the plugging space, the island of the radio frequency socket is inserted into the inner insertion space of the radio frequency plug, the socket outer wall of the radio frequency socket is inserted into the outer insertion space, the friction main body and the metal surface of the metal fixing piece exposed in the plugging space are in contact friction.

6. The RF plug of claim 1, wherein the terminal module includes a plurality of conductive terminals and an insulating block integrally formed with the conductive terminals, the radio frequency plug also comprises a cable assembly welded with the conductive terminal and a shielding shell coated outside the insulating seat body and the insulating block, the metal insert comprises a plate body part, a buckling part and a clamping part, wherein the buckling part and the clamping part are bent upwards from the two transverse sides of the plate body part and are formed in the extension arm, an assembly space communicated with the inner insertion space is formed between the buckling parts on the upper surface of the metal insert, the terminal module is assembled and fixed in the assembling space downwards, the conductive terminal comprises a holding part formed in the insulating block and an elastic contact arm which extends forwards from the holding part and is suspended in the inner inserting space, the upper surface of the plate body part is positioned between the clamping parts to form a clamping space communicated with the assembling space.

7. The radio frequency plug of claim 6, wherein the mating end further includes a plurality of partitions extending rearward from the protruding portion and terminal slots formed between the partitions, the inner plug space is located behind the partitions, the protruding portion further includes a front sidewall located in front of the partitions and a rear sidewall located behind the inner plug space; 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.

8. The RF plug of claim 7, wherein the conductive terminal further includes a retention portion formed in the insulator and a solder tail extending rearward from the retention portion, the elastic contact arm extends forwards from the holding part and comprises a first elastic arm extending obliquely forwards and downwards, a second elastic arm bent downwards and extending from the front end of the first elastic arm, a third elastic arm extending obliquely backwards and upwards from the tail end of the second elastic arm, a bent end part bent forwards and upwards from the tail end of the third elastic arm and a contact part formed at the bent position of the third elastic arm and the bent end part, a part of the first elastic arm, a part of the second elastic arm and a part of the third elastic arm of the elastic contact arm are respectively positioned in the terminal groove and are separated by the partition, and the contact part is exposed backwards in the inner plugging space.

9. The RF plug of claim 6, wherein the insulator 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 formed at a bottom of a front end of the insulating body, the clearance portion partially overlapping the inner plug space.

10. The radio frequency plug of claim 9, wherein the radio frequency plug further includes a cable assembly assembled in the holding space, 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 holding a braid of the cable therein and solder filled between the lower soldering lug and the upper soldering lug for covering the braid, the lower soldering lug is spot-welded to an upper surface of the plate portion of the metal insert, the upper soldering lug is spot-welded to an upper cover plate of the shield case, and a center conductor of the cable extends to the rear portion and is welded to a soldering lug of the conductive terminal.

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