RF plug

Abstract

A radio frequency plug includes an insulating seat body integrally formed with a metal insert, a terminal module, and a shielding shell covered outside the insulating seat body, the insulating seat body includes a butt end provided with an internal plug-in space in the vertical direction and a pair of extension arms extending backward from the butt end, the butt end includes a top wall, a protrusion formed by protruding downward from the top wall, and transverse walls formed on both sides of the protrusion, the internal plug-in space is located between the two transverse walls, the metal insert includes a plate body located between the extension arms and a buckle part bent upward and extended from both sides of the plate body, the front end of the buckle part of the metal insert is bent and extended toward the outside to form a reinforcing metal part, the reinforcing metal part is integrally formed on the transverse wall, and the reinforcing metal part includes a friction main covering the outer side of the transverse wall. The radio frequency plug of the present application can prevent the protrusion of the insulating seat body from being damaged.

Description

Technical Field

[0001] The present application relates to the field of radio frequency connectors, and in particular to a radio frequency plug. Background Art

[0002] The PCB boards of existing mobile phones usually have RF connectors that connect coaxial cables to transmit RF signals, such as antenna signals, high-frequency signals between different boards, etc.; in the 5G communication era, multi-antenna transmission is required, and traditional single-channel RF connectors can no longer meet the requirements; among the existing alternative solutions, there is a technical solution that uses board-to-board connectors to achieve multi-channel transmission of antenna signals.

[0003] Patent No. 201910206829.X of the People's Republic of China discloses a cable connector device that transmits multi-channel antenna signals through a coaxial line combination. It includes an insulating body, a conductive terminal and a metal sheet integrally formed in the insulating body, a shielding shell and a cable assembly. The insulating body includes a docking end, and the docking end protrudes downward to form a protrusion. The protrusion is inserted into the socket as a docking part for docking, and the periphery of the protrusion is a plastic structure, and the corresponding position of the socket is a fixed iron shell. When plugging, it is easy to cause the plastic structure of the periphery of the protrusion to be damaged, resulting in poor use. At the same time, when the insulating body is integrally injection molded with the conductive terminal, it is necessary to form a terminal groove to accommodate the contact cantilever of the conductive terminal, and a plastic fence is also required between the contact cantilever. The spacing between the conductive terminals is very small. When molding the fence, a very high-precision mold is required, and the mold parts are very small and easy to damage. Meanwhile, the shielding shell needs to be bent several times when being wrapped around the insulating body, and the bending process is performed when the shielding shell is partially wrapped around the insulating body, which makes processing and assembly very difficult. Summary of the invention

[0004] In view of this, it is necessary to provide a radio frequency plug to enhance the strength of the radio frequency plug butt joint end to avoid damage to the outer wall of the plastic material when plugging into the socket.

[0005] In order to solve the above technical problems, the present application provides a radio frequency plug, including an insulating seat body integrally formed with a metal insert, a terminal module and a shielding shell covered outside the insulating seat body, the insulating seat body including a butt joint end provided with an internal plug-in space in the vertical direction and a pair of extension arms extending backward from the butt joint end, the butt joint end including a top wall, a protruding portion protruding downward from the top wall, and transverse walls formed on both sides of the protruding portion, the internal plug-in space is located between the two transverse walls, the metal insert includes a plate body portion located between the extension arms and a snap portion formed by bending upward and extending from both sides of the plate body portion, the front end of the snap portion of the metal insert is bent and extended toward the transverse outside to form a reinforcing metal part, the reinforcing metal part is integrally formed on the transverse wall, and the reinforcing metal part includes a friction body covered on the outer side surface of the transverse wall.

[0006] Preferably, the friction body includes a transverse wall portion covering the transverse outer side of the transverse wall and a longitudinal wall portion covering the longitudinal outer side of the transverse wall, and the reinforcing metal part also includes an electrical connection portion formed by vertically bending from the top of the transverse wall portion and extending laterally outward, and the snap portion is connected to the longitudinal wall portion at the rear end as a whole through a connecting portion, and the connecting portion is a bent structure.

[0007] Preferably, the upper surface of the electrical connection part is exposed above the top wall, and the shielding shell includes an upper cover plate covering the upper surface of the insulating base body and a shielding frame surrounding the front side and lateral sides of the insulating base body. The upper surface of the electrical connection part is in electrical contact with the upper cover plate, and the electrical connection part is fixed to the upper cover plate by spot welding.

[0008] Preferably, the longitudinal wall portion on the front side of the reinforcing metal member is bent vertically backwards to be embedded in the transverse wall for retention.

[0009] Preferably, an external plug-in space is formed between the protrusion and the shielding frame, the RF plug is docked with an RF socket, the RF socket comprises a socket body provided with a socket outer wall and an island portion, a plug-in space formed between the island portion and the socket outer wall, metal fixings integrally formed on both lateral sides of the socket outer wall, and socket terminals integrally formed on the island portion and extending out of the socket outer wall, the metal fixings are exposed on both inner and outer side surfaces of the socket outer wall, the protrusion at the docking end of the RF plug is inserted into the plug-in space, the island portion of the RF socket is inserted into the inner plug-in space of the RF plug, the socket outer wall of the RF socket is inserted into the external plug-in space, and the friction body contacts and rubs against the metal surface of the metal fixing exposed in the plug-in space.

[0010] Preferably, the terminal module includes a plurality of conductive terminals and an insulating block that forms the conductive terminals as a whole, the RF plug also includes a cable assembly welded to the conductive terminal and a shielding shell covered on the outside of the insulating seat and the insulating block, the metal insert includes a plate body portion and a buckle portion and a clamping portion that are bent upward from both lateral sides of the plate body portion and formed in the extension arm, an assembly space connected to the inner plug-in space is formed between the buckle portions on the upper surface of the metal insert, the terminal module is assembled and fixed downward in the assembly space, the conductive terminal includes a retaining portion formed in the insulating block and an elastic contact portion that extends forward from the retaining portion and is suspended in the inner plug-in space, and the upper surface of the plate body portion is located between the clamping portions to form a clamping space connected to the assembly space.

[0011] Preferably, the docking end also includes a plurality of partitions extending backward from the protruding portion and terminal grooves formed between the partitions, the internal plug-in space is located behind the partitions, and the protruding portion also includes a front wall located in front of the partition and a rear wall located behind the internal plug-in space; the shielding shell includes an upper cover plate covering the insulating seat and the insulating block and a shielding frame surrounding the front and lateral outer side of the insulating seat, and an external plug-in space is formed between the protruding portion and the shielding frame.

[0012] Preferably, the conductive terminal also includes a retaining portion formed in the insulating block and a welding foot extending backward from the retaining portion, and the elastic contact portion is formed by extending forward from the retaining portion, and the elastic contact portion includes a first elastic arm extending obliquely forward and downward, a second elastic arm extending downward from the front end of the first elastic arm, a third elastic arm extending obliquely backward and upward from the end of the second elastic arm, a bent end portion bent forward and upward from the end of the third elastic arm, and a contact portion formed at the bending position of the third elastic arm and the bent end portion, a portion of the first elastic arm, the second elastic arm and a portion of the third elastic arm of the elastic contact portion are respectively located in the terminal slot and separated by the partition, and the contact portion is exposed backward in the inner plug-in space.

[0013] Preferably, the insulating block includes an insulating body covering the conductive terminal, a rear extension portion extending backward from the rear end of the bottom of the insulating body, and a clearance portion opened at the bottom of the front end of the insulating body, and the clearance portion partially overlaps with the inner plug-in space.

[0014] Preferably, the RF plug also 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 welding piece and an upper welding piece for clamping the braided layer of the cable, and solder filled between the lower welding piece and the upper welding piece to cover the braided layer, the lower welding piece is spot-welded and fixed to the upper surface of the plate portion of the metal insert, the upper welding piece is spot-welded and fixed to the upper cover plate of the shielding shell, and the central conductor of the cable extends to the extended portion and is welded to the welding foot of the conductive terminal.

[0015] The present application forms an integrally formed and embedded reinforcing metal part on the transverse wall of the protruding part of the insulating seat body, so that the reinforcing metal part forms a friction body covering the outer periphery of the transverse wall. When the radio frequency plug is inserted into the socket, the friction body of the reinforcing metal part and the metal fixing part of the socket are matched and rubbed, thereby avoiding the problem of easy damage caused by friction between the transverse wall and the metal fixing part.

[0016] The reinforcing metal part of the present application is stamped and formed integrally with the metal insert, which can reduce one stamping process, reduce the number of metal parts injected in the mold, and reduce the material cost of the product; at the same time, the insulating seat body is connected to the reinforcing metal part as a whole through the metal insert, making the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Embodiment 1

[0019] Figure 1 A three-dimensional assembly diagram of the radio frequency plug of this application;

[0020] Figure 2 A three-dimensional composite diagram of the radio frequency plug of this application from another angle;

[0021] Figure 3 This is a three-dimensional exploded view of the radio frequency plug of this application;

[0022] Figure 4 A three-dimensional diagram of a metal insert of a radio frequency plug of the present application;

[0023] Figure 5 A three-dimensional diagram of the insulating seat body of the radio frequency plug of the present application;

[0024] Figure 6 A three-dimensional combination diagram of a metal insert, a reinforced metal shell and an insulating seat body of the radio frequency plug of this application;

[0025] Figure 7 A three-dimensional combination diagram of the metal insert, the reinforced metal shell and the insulating seat body of the radio frequency plug of the present application from another angle;

[0026] Figure 8 A three-dimensional combination diagram of a conductive terminal and an insulating block of the radio frequency plug of the present application;

[0027] Fig. 9 A three-dimensional diagram of the conductive terminal of the radio frequency plug of the present application;

[0028] Fig.10 A three-dimensional diagram of a reinforced metal shell of the radio frequency plug of the present application;

[0029] Fig.11 This is a three-dimensional composite diagram of the radio frequency plug of this application after removing the shielding shell;

[0030] Fig.12 A three-dimensional composite diagram of the shielding shell of the radio frequency plug of this application;

[0031] Fig.13 A three-dimensional diagram of a socket that is plugged into the radio frequency plug of the present application;

[0032] Fig.14 For along Figure 1 A cross-sectional view taken along the dashed line AA shown;

[0033] Fig.15 For along Figure 1 A cross-sectional view taken along the dashed line BB shown;

[0034] Fig.16 for Figure 1 The RF plug and socket shown are mated at the rear edge Figure 1 A cross-sectional view of the CC dashed line shown;

[0035] Fig.17 A three-dimensional combination diagram of the cable and the cable bracket of the radio frequency plug of this application;

[0036] Fig.18 This is a three-dimensional combination diagram of the cable and cable bracket of the RF plug of this application after removing the conductive glue.

[0037] Embodiment 2

[0038] Fig.19 A three-dimensional combination diagram of the insulating base body, the reinforced metal shell and the metal insert of the radio frequency plug of the present application;

[0039] Fig. 20 A three-dimensional diagram of the integrated structure of the metal insert and the reinforced metal shell of the radio frequency plug of the present application;

[0040] Fig.21 This is a three-dimensional view of the integrated structure of the metal insert of the radio frequency plug of the present application and the reinforced metal shell from another angle.

[0041] Main component symbols

[0042] Shielding shell-10; upper cover-11; cover-111; flange-112; shielding frame-12; front frame-121; side frame-122; inner fold-123; tail frame-124; support-125; convex strip (groove)-126; welding surface-127; insulating seat-20; docking end-21; bottom wall-211; protrusion-212; fence-213; terminal slot-214; front side wall-215; rear side wall-216 ; horizontal wall-217; extension arm-22; first arm-221; second arm-222; metal insert-30; plate body-31; front plate-311; rear plate-312; clamping part-32; first vertical wall-321; second vertical wall-322; bending top-323; buckle part-33; buckle vertical wall-331; buckle end-332; buckle space-333; conductive terminal-40; signal terminal-40a; ground terminal- 40b; holding portion-41; solder foot-42; step portion-421; elastic contact portion-43; first elastic arm-431; second elastic arm-432; third elastic arm-433; bent end-434; contact portion-435; sinking portion-44; cable bracket-50; lower soldering piece-51; clamping bottom wall-511; vertical portion-512; lower convex bulge-513; upper soldering piece-52; clamping top wall-521; upper convex bulge-522; conductive adhesive- 53; insulating block-60; insulating body-61; extension part-62; soldering platform-621; protrusion-622; block-623; tin container-624; air-avoiding part-63; reinforced metal shell-70; transverse wall part 71; longitudinal wall part-72; electrical connection part-73; embedded part-74; spanning part-75; barbed part-78; connecting part-79; cable-C; center conductor-C1; inner insulating layer-C2; braided layer-C3; outer insulating layer-C4. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution of this application will be clearly and completely described below in combination with the specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them.

[0044] The definition of direction in this application is based on Figure 1 For reference, the X direction is the front in the front-back direction (longitudinal direction), the Y direction is the right in the left-right direction (lateral direction), and the Z direction is the top in the up-down direction (left-right direction).

[0045] Embodiment 1

[0046] Figures 1 to 18This is a description drawing of the first embodiment, which shows the product structure of the first embodiment in detail.

[0047] See also Figures 1 to 3 As shown, the radio frequency plug of the present application includes an insulating body 20, a metal insert 30 and a reinforced metal shell 70 formed in the insulating body 20, a terminal module assembled in the insulating body 20, a cable assembly and a shielding shell 10 covering the outside of the insulating body 20.

[0048] See also Figures 4 to 7 , Fig.10 As shown, the metal insert 30 includes a plate body 31 having a front plate 311 and a rear plate 312, a buckle portion 33 formed by bending upward and extending from both lateral sides of the front plate 311, and a clamping portion 32 formed by bending upward and extending from both lateral sides of the rear plate 312. The buckle portion 33 includes a buckle vertical wall 331 formed by bending upward and vertically extending from both lateral sides of the front plate 311, and a buckle end 332 formed by bending relatively inward from the buckle vertical wall 331, and a buckle space 333 is formed below the buckle end 332. The clamping portion 32 includes a first vertical wall 321 formed by bending upward and vertically extending from both lateral sides of the rear plate 312, a second vertical wall 322 formed by bending reversely from the top of the first vertical wall 321 and extending toward the upper surface of the rear plate 312, and a bent top 323 connecting the first and second vertical walls 321 and 322.

[0049] The insulating seat 20 includes a butt end 21 and a pair of extension arms 22 extending backward from both sides of the butt end 21. The butt end 21 includes a top wall 211, a protrusion 212 extending downward from the top wall 211, an inner plug-in space 23 formed by penetrating the top wall 211 and the protrusion 212, a plurality of fences 213 extending backward from the protrusion 212 into the inner plug-in space 23, and a terminal slot 214 formed between the fences 213. The protrusion 212 includes a front side wall 215 formed at the front end below the top wall 211, a rear side wall 216 formed at the rear end below the top wall 211 and adjacent to the inner plug-in space 23, and a pair of transverse walls 217 connecting the front side wall 215 and the rear side wall 216 at both sides. The wall surfaces of the pair of transverse walls 217 located in the inner plug-in space 23 are laterally recessed outward to form matching notches 218. The front side wall 215, the rear side wall 216 and the transverse wall 217 of the outer periphery of the protruding portion 212 are collectively referred to as the outer side wall of the docking end 21. The extension arm 22 includes a first arm portion 221 extending backward from the bottom wall docking end 21 and a second arm portion 222 extending backward from the first arm portion 221. The width between the pair of first arm portions 221 is smaller than the width between the pair of second arm portions 222.

[0050] The metal insert 30 is formed on a pair of the extension arms 22, and a pair of the buckle parts 33 and the clamping part 32 are respectively formed in the first wall part 221 and the second arm part 222. The space between the plate body 31 and the pair of the buckle parts 33 constitutes an assembly space S2 for assembling the terminal module. The space between the plate body 31 and the pair of the clamping parts 32 constitutes a clamping space S3 for assembling the cable assembly. The buckle ends 332 of the pair of the buckle parts 33 and the second vertical walls 322 of the pair of the clamping parts 32 are respectively exposed in the assembly space S2 and the clamping space S3. The assembly space S2 and the clamping space S3 are both on the upper surface of the plate body 31, and the assembly space S2 is connected to the inner plug-in space 23 in the front direction. The insulating seat 20 also includes a covering part 24 formed and covered on the bottom surface of the front plate part 311 so that the front plate part 311 is embedded in the insulating seat 20. A protrusion 324 is stamped on the second vertical wall 322 and protrudes into the clamping space S3 .

[0051] The reinforcing metal shell 70 is integrally injection molded on a pair of transverse walls 217 of the insulating seat 20. The reinforcing metal shell 70 includes a friction body covering the outer side of the transverse wall 217, an electrical connection portion 73 formed by horizontal bending from the friction body, and an embedded portion 74 formed by reverse bending and extending from the bottom of the friction body. The friction body includes a transverse wall portion 71 covering the transverse outer side of the transverse wall 217 and a longitudinal wall portion 72 vertically bent from the longitudinal ends of the transverse wall portion 71 and covering the longitudinal outer side of the transverse wall 217. The electrical connection portion 72 is formed by vertical bending from the top of the transverse wall portion 71 and exposed on the top surface of the top wall 211 to be electrically connected or spot welded to the shielding shell 10. The embedded portion 74 is formed by reverse bending from the bottom of the transverse wall portion 71, and forms a spanning portion 75 connecting the bottom of the transverse wall portion 71 and the embedded portion 74, and the bottom surface of the spanning portion 75 is exposed on the bottom surface of the transverse wall 217.

[0052] Please continue reading Figure 2 , Figure 3 , Figures 7 to 16As shown, the terminal module includes a plurality of conductive terminals 40 and an insulating block 60 that forms the conductive terminals 40 as a whole. The conductive terminals 40 include a plurality of signal terminals 40a and a grounding terminal 40b that separates the signal terminals 40a. Each conductive terminal 40 includes a retaining portion 41 formed in the insulating block 60, a solder foot 42 formed by extending backward from the retaining portion 41, and an elastic contact portion 43 formed by extending forward from the retaining portion 41. The elastic contact portion 43 is suspended in the inner plug-in space 23, and includes a first elastic arm 431 extending obliquely forward and downward, a second elastic arm 432 extending downward from the front end of the first elastic arm 431, a third elastic arm 433 extending obliquely backward 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 bending position between the third elastic arm 433 and the bent end portion 434. The rear end of the holding portion 41 extends obliquely downward to form a sinking portion 44, and the solder leg 42 is formed by bending from the rear end of the sinking portion 44 and extending horizontally. The width of the sinking portion 44 is smaller than the width of the holding portion 41. The solder leg 42 of the grounding terminal 40b is formed by bending downward from the tail of the holding portion 41 and extending backward, and the horizontal position of the solder leg 42 of the grounding terminal 40b is lower than the horizontal position of the solder leg 42 of the signal terminal 40a. Therefore, the rear end of the holding portion 41 of the grounding terminal 40b is bent downward to form a step portion 421.

[0053] The insulating block 60 includes an insulating body 61 covering the holding portion 41 of the conductive terminal 40, a rear extension portion 62 extending backward from the rear end of the bottom of the insulating body 61, and a clearance portion 63 opened at the bottom of the front end of the insulating body 61. The clearance portion 63 partially overlaps with the inner plug-in 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 portion 43 are respectively separated by the partition 213, and the contact portion 435 is exposed backward in the inner plug-in space 23. The solder pin 42 of the signal terminal 40a extends to the top of the rear extension portion 62, and the solder pin 42 of the ground terminal 40b extends to the upper surface of the plate body 31 for electrical contact or welding. The rear extension 62 is formed with soldering pads 621 at positions corresponding to the soldering feet 42 of the signal terminal 40a, and a protrusion 622 is provided between the soldering pads 621 to partially cover the retaining portion 41 of the ground terminal 40b, and the lateral sides of the soldering pads 621 are recessed downward to form tin-containing grooves 624. The rear extension 62 is formed with clamping blocks 623 that are inserted into the clamping space 333 to insert the terminal module into the assembly space S2 for preliminary positioning.

[0054] The shielding shell 10 includes a split upper cover plate 11 and a shielding frame 12, wherein the upper cover plate 11 covers the insulating seat 20 and the insulating block 60, and the upper cover plate 11 includes a cover body 111 and a flange 112 formed by bending downward from the outer periphery of the cover body 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 butt end 21 of the insulating seat 20, a side frame 122 bent backward from the lateral ends of the front frame 121 and extending to cover the lateral periphery of the butt end 21, an inner folding portion 123 bent inward from the side frame 122 to clamp the first arm portion 221 of the extension arm 22, a tail frame 124 extending backward from the rear end of the inner folding portion 123 to the outside of the second arm portion 222, and a supporting portion 125 bent inward from the bottom of the tail frame 124 to cover the bottom surface of the plate portion 31 of the metal insert 30. The wall surface of the side frame 122 is stamped with a convex strip or groove 126 to buckle with the butt RF socket (not shown). A plurality of welding surfaces 127 are provided on the top surface of the shielding frame 12, 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.

[0055] During assembly, the upper cover plate 11 and the shield frame 12 are directly covered on the upper and lower sides of the insulating base 20, respectively, and then spot welding is performed from the upper surface of the upper cover plate 11 to fix the upper cover plate 11 and the welding surface 127 of the shield frame 12 into one. The flange 112 of the upper cover plate 11 is located at the periphery of the shield frame 12.

[0056] The shielding shell 10 is designed to be a split upper cover plate 11 and a shielding frame 12 structure. The process of stamping the upper cover plate 11 and the shielding frame 12 separately is simple, and the requirement for bending accuracy is reduced. In addition, there is no need to bend the shielding shell 10 during the assembly of the shielding shell 10, which greatly reduces the difficulty and processing accuracy of the assembly process.

[0057] The electrical connection part 73 of the reinforced metal shell 70 is in electrical contact with the lower surface of the upper cover plate 11, and the electrical connection part 73 is fixed to the upper cover plate 11 by spot welding, so that the relative position of the insulating seat 20 and the upper shielding shell 10 is fixed to avoid deviation.

[0058] See also Fig.17 , Fig.18As shown, the cable assembly includes a cable bracket 50 and a plurality of cables C fixed in the cable bracket 50, wherein the cables C are coaxial cables, and the cables C include a central conductor C1, an inner insulating layer C2 wrapped around the outer side of the central conductor C1, a braided layer C3 wrapped around the outer periphery of the inner insulating layer C2, and an outer insulating layer C4 wrapped around the braided layer C3. The cable bracket 50 includes a lower welding piece 51 and an upper welding piece 52 that clamp the braided layer C3 of the cable C, and a conductive adhesive 53 filled between the lower welding piece 51 and the upper welding piece 52 to cover the braided layer C3. The lower welding piece 51 includes a clamping bottom plate 511, a vertical portion 512 formed by bending upward from both lateral ends of the clamping bottom plate 511, and a lower convex bump 513 formed by punching upward from the clamping bottom plate 511 to separate the braided layer C3. The upper welding piece 52 is a clamping top plate 521, and the clamping top plate 521 is punched downward to form an upper convex bump 522 that separates the braided layer C3. The lateral ends of the clamping top plate 521 are inserted between the vertical parts 512 of the lower welding piece 51 and are welded and fixed to the vertical parts 512. The upper convex bump 522 and the lower convex bump 513 separate the braided layer C3 to facilitate the positioning of the cable C.

[0059] After the cable C is fixed by the cable bracket 50, the cable bracket 50 is inserted into the clamping space S3 above the plate body 31, so that the vertical portion 512 is clamped between a pair of clamping arms 32 of the metal insert 30, and the vertical portion 512 is electrically contacted with the protrusion 324 on the second vertical wall 322 and grounded.

[0060] The central conductor C1 of the cable C extends to the top of the soldering foot 42 of the signal terminal 40a and is fixed by welding. Subsequently, the shielding shell 10 is covered on the outside of the insulating seat 20, the upper soldering piece 52 is fixed by spot welding to the upper cover plate 11 of the shielding shell 10, and the lower soldering piece 51 is fixed by spot welding to the upper surface of the plate body 31 of the metal insert 30.

[0061] The metal insert 30 is integrally injection molded with the insulating seat 20, the conductive terminal 40 is integrally injection molded with the insulating block 60, and then the terminal module of the conductive terminal 40 is assembled and fixed on the metal insert 30 and the insulating seat 20, thereby avoiding the technical problems of the prior art that the metal insert 30 and the conductive terminal 40 are injection molded at one time, and the terminal groove 214 and the fence 213 need to be formed on the outer periphery of the elastic contact portion 43 of the conductive terminal 40, which leads to the mold size being too small, the precision being too high, and the processing being difficult, and the mold being easy to damage. In addition, the conductive terminal 40 and the metal insert 30 are both cut to remove the material strip after injection molding, which is convenient for automated production.

[0062] The metal insert 30 is located on both sides of the assembly space S2 and has snap-on ends 332 to initially snap the insulating block 60 under the snap-on ends 332, thereby avoiding the technical problem of the insulating block 60 being easily loosened and misplaced during subsequent assembly; at the same time, the welding feet 42 of the signal terminal 40a and the grounding terminal 40b are staggered in the vertical direction and the longitudinal direction, thereby reducing the welding difficulty caused by the small size.

[0063] Key References Fig.13 , Fig.16 As shown, the socket that is plugged into the radio frequency plug of the present application includes a socket body 91 having a socket outer wall 95 and an island portion 92, a plugging and unplugging space S4 formed between the island portion 92 and the socket outer wall 95, a metal fixing member 94 integrally formed on both lateral sides of the socket outer wall 95, and a socket terminal 93 integrally formed on the island portion 92 and extending out of the socket outer wall 95. The metal fixing member 94 is provided with metal surfaces exposed on both inner and outer sides of the socket outer wall 95.

[0064] The protrusion 212 of the butt end 21 of the radio frequency plug of the present application is inserted into the plug-in space S4, and the island portion 92 of the socket is inserted into the inner plug-in space 23 of the plug so that the socket terminal 93 is in electrical contact with the contact portion 435 of the conductive terminal 40 of the plug exposed in the inner plug-in space 23. The socket outer wall 95 of the socket is inserted into the outer plug-in space S1 between the protrusion 212 of the plug and the shielding frame 12. The friction bodies 71, 72 of the reinforcing metal part 70 are in contact and friction with the metal surface of the metal fixing part 94 of the socket exposed in the plug-in space S4 to avoid damaging the transverse wall 217 of the protrusion 212. The outer side surface of the metal fixing part 94 is fixedly matched with the inner side surface of the shielding frame 12.

[0065] The present application forms an integrally formed reinforcing metal part 70 embedded in the transverse wall 217 of the protruding portion 212 of the insulating seat body 20, so that the reinforcing metal part 70 forms a friction body wrapped around the outer periphery of the transverse wall 217. When the RF plug is inserted into the socket, the friction body of the reinforcing metal part 70 rubs against the metal fixing part 94 of the socket, thereby avoiding the problem of easy damage caused by friction between the transverse wall 217 and the metal fixing part 94.

[0066] Embodiment 2

[0067] See also Figures 19 to 21As shown, this embodiment is different from the first embodiment, and the reinforcing metal part 70 and the metal insert 30 are an integral stamping structure. Specifically, the reinforcing metal part 70 cancels the embedding part 74 and the spanning part 75, and is connected to the buckle part 33 of the metal insert 30 through the longitudinal wall part 72 located at the rear end, that is, the front end of the buckle part 33 is bent outward to form a connecting part 79 connected to the longitudinal wall part 72. The free end of the longitudinal wall part 72 located at the front end is bent backward to form a hook part 78 embedded in the transverse wall 217. At this time, in the functional design of the buckle part 33, in order to avoid the deformation of the terminal module caused by the buckle and affect the transverse wall 217, the buckle function can be omitted, and the functional attributes reflected in the component name here are not binding on the claims. This embodiment cleverly utilizes the relative position of the buckle part 33 and the reinforcing metal part 70 to be stamped and formed in one piece, making injection molding simpler and more practical, and further enhancing the overall stability of the product.

[0068] The reinforcing metal part 70 of this embodiment is integrally stamped with the metal insert 30. In addition to the technical effects of the first embodiment, it also reduces one stamping process, reduces the number of metal parts injected in the mold, and reduces the material cost of the product. At the same time, the insulating seat 20 is connected to the reinforcing metal part 70 as a whole through the metal insert 30, making the structure more stable.

[0069] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. 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, comprising an insulating seat body integrally formed with a metal insert, a terminal module and a shielding shell covered outside the insulating seat body, the insulating seat body comprising a butt end with an inner plug-in space in the vertical direction and a pair of extension arms extending backward from the butt end, the butt end comprising a top wall, a protruding portion protruding downward from the top wall and transverse walls formed on both sides of the protruding portion, the inner plug-in space is located between the two transverse walls, the metal insert comprises a plate body portion located between the extension arms and a buckle portion formed by bending upward and extending from both sides of the plate body portion, characterized in that The front end of the buckle portion of the metal insert is bent and extended toward the transverse outer side to form a reinforcing metal piece, the reinforcing metal piece is integrally formed on the transverse wall, and the reinforcing metal piece includes a friction body coated on the outer side of the transverse wall; The friction body includes a transverse wall portion covering the transverse outer side of the transverse wall and a longitudinal wall portion covering the longitudinal outer side of the transverse wall, the reinforcing metal part also includes an electrical connection portion formed by vertically bending from the top of the transverse wall portion to extend laterally outward, the buckle portion is connected to the longitudinal wall portion at the rear end as a whole through a connection portion, and the connection portion is a bending structure; The upper surface of the electrical connection part is exposed above the top wall, and the shielding shell includes an upper cover plate covering the upper surface of the insulating base body and a shielding frame surrounding the front side and lateral sides of the insulating base body. The upper surface of the electrical connection part is in electrical contact with the upper cover plate, and the electrical connection part is fixed to the upper cover plate by spot welding.

2. The radio frequency plug according to claim 1, characterized in that: The longitudinal wall portion on the front side of the reinforcing metal member is vertically bent backwards to be embedded in the transverse wall for retention.

3. The radio frequency plug according to claim 2, characterized in that: An external plug-in space is formed between the protruding portion and the shielding frame, the RF plug is docked with an RF socket, the RF socket includes a socket body provided with a socket outer wall and an island portion, a plug-in space formed between the island portion and the socket outer wall, metal fixings integrally formed on both lateral sides of the socket outer wall, and socket terminals integrally formed on the island portion and extending out of the socket outer wall, the metal fixings are exposed on both inner and outer side surfaces of the socket outer wall, the protruding portion of the docking end of the RF plug is inserted into the plug-in space, the island portion of the RF socket is inserted into the inner plug-in space of the RF plug, the socket outer wall of the RF socket is inserted into the external plug-in space, and the friction body contacts and rubs against the metal surface of the metal fixing exposed in the plug-in space.

4. The radio frequency plug according to claim 1, characterized in that: The terminal module includes a plurality of conductive terminals and an insulating block integrally forming the conductive terminals, the radio frequency plug also includes a cable assembly welded to the conductive terminal and a shielding shell covered on the insulating seat and the insulating block, the metal insert includes a plate body and a buckle portion and a clamping portion bent upward from both lateral sides of the plate body and formed in the extension arm, an assembly space connected to the inner plug-in space is formed between the buckle portions on the upper surface of the metal insert, the terminal module is assembled downward and fixed in the assembly space, the conductive terminal includes a retaining portion formed in the insulating block and an elastic contact portion extending forward from the retaining portion and suspended in the inner plug-in space, and a clamping space connected to the assembly space is formed between the clamping portions on the upper surface of the plate body.

5. The radio frequency plug according to claim 4, characterized in that: The docking end also includes a plurality of partitions extending backward from the protruding portion and terminal grooves formed between the partitions, the inner plug-in space is located behind the partitions, and the protruding portion also includes a front wall located in front of the partitions and a rear wall located behind the inner plug-in space; the shielding shell includes an upper cover plate covering the insulating seat and the insulating block and a shielding frame surrounding the front side and the lateral outside of the insulating seat, and an outer plug-in space is formed between the protruding portion and the shielding frame.

6. The radio frequency plug according to claim 5, characterized in that: The conductive terminal also includes a retaining portion formed in the insulating block and a welding foot extending backward from the retaining portion, the elastic contact portion is formed by extending forward from the retaining portion, the elastic contact portion includes a first elastic arm extending obliquely forward and downward, a second elastic arm extending from the front end of the first elastic arm by bending downward, a third elastic arm extending obliquely backward and upward from the end of the second elastic arm, a bent end portion bent forward and upward from the end of the third elastic arm, and a contact portion formed at the bending 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 portion are respectively located in the terminal slot and separated by the partition, and the contact portion is exposed backward in the inner plug-in space.

7. The radio frequency plug according to claim 4, characterized in that: The insulating block includes an insulating body covering the conductive terminal, a rear extension portion extending backward from the rear end of the bottom of the insulating body, and a clearance portion opened at the bottom of the front end of the insulating body, wherein the clearance portion partially overlaps with the inner plug-in space.

8. The radio frequency plug according to claim 7, characterized in that: The radio frequency plug also 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 welding piece and an upper welding piece for clamping the braided layer of the cable therein, and solder filled between the lower welding piece and the upper welding piece to cover the braided layer, the lower welding piece is spot-welded and fixed to the upper surface of the plate body of the metal insert, the upper welding piece is spot-welded and fixed to the upper cover of the shielding shell, and the central conductor of the cable extends to the extended portion and is welded to the welding foot of the conductive terminal.

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