CN111293497A - Board-to-board plug - Google Patents

Abstract

A board-to-board plug comprises a plurality of plug terminals, a metal reinforcement, a plug body, a cable assembly and a shielding shell, wherein the plug body integrates the plug terminals and the metal reinforcement in a fixed mode, the cable assembly is connected with the plug terminals, the shielding shell covers the plug body, the plug body comprises a base part and an extending part formed by extending the base part backwards, the shielding shell comprises a covering top plate covering the top surface of the plug body, a covering front wall formed by bending the front end of the covering top plate downwards, covering side walls formed by bending the transverse two ends of the covering front wall backwards and protecting parts located outside the covering side walls and formed by bending the transverse two sides of the covering top plate downwards, the metal reinforcement comprises a main body part exposed on the top surface of the base part and convex strips formed by extending the main body part upwards, and a slot for the convex strips to be clamped into is formed in the, the main body part is in contact with the cover top plate and is welded and fixed together. This application can be effectively spacing the plug body.

Description

Board-to-board plug

Technical Field

The present application relates to the field of electrical connectors, and more particularly, to a board-to-board plug.

Background

Because the traditional single-channel coaxial connector can not meet the communication requirements of consumer electronic equipment such as smart phones, a multi-channel high-frequency transmission connector in a plate-to-plate form appears. CN110474201A discloses a board-to-board plug, which includes a plug body formed with a plurality of conductive terminals, a cable assembled at the tail of the plug body and welded with the conductive terminals, and a shielding shell covering the plug body. The plug body with shielding case's location sets up spacing bulge through plug body front end shielding case front end sets up spacing breach, during the equipment, the plug body pushes away forward and makes spacing bulge card is gone into in the spacing breach location, the accurate positioning of other parts needs follow-up cladding and the spot welding through the covering portion to fix a position, causes the relative position of plug body and shielding case to change and finally influences the product precision easily during this period. And the plug body is more complicated to assemble and has higher requirements on the manufacturing process due to the forward pushing process.

Disclosure of Invention

Therefore, there is a need for a board-to-board plug that achieves better position-limiting accuracy by slotting the top of the shielding housing and engaging with the protruding strips of the metal reinforcement for position-limiting, and simplifies the assembly process.

In order to solve the technical problem, the application provides a board-to-board plug, including a plurality of plug terminals, metal reinforcement, with a plurality of plug terminals and metal reinforcement fixing as an organic whole plug body, connect the cable subassembly of plug terminal and cladding in this external shield shell of plug, the plug body includes the basal portion and from the extension that the basal portion back-extension formed, shield shell including cover the cover roof of plug body top surface, from cover roof front end bending down the cover antetheca that forms, from cover the lateral wall that the horizontal both ends back-bending of antetheca formed and from the horizontal both sides of cover roof bend down lie in cover the outer protection portion of lateral wall, the metal reinforcement is including exposing in the main part on the basal portion top surface and from the main part upwards extends the sand grip that forms, be equipped with the fluting that supplies the sand grip card to go into on the cover roof, the main body part is in contact with the cover top plate and is welded and fixed together.

Preferably, the slot and the protruding strip both extend in the front-rear direction, the length of the slot in the front-rear direction is equal to the length of the protruding strip, and a guide inclined surface is formed on the outer periphery of the slot facing one side of the plug body in a punching mode.

Preferably, the transverse width of the slot is greater than the thickness of the convex strip, a pair of elastic convex parts are formed on two transverse sides of the slot in a protruding manner, and the distance between the pair of elastic convex parts is equal to the thickness of the convex strip.

Preferably, the sand grip is blocked in the slot, and the slot is in four directions of front, back, left and right sides to the sand grip is spacing, prevents to be with the plug body of metal reinforcement shaping in is rocked.

Preferably, the plug body further comprises an island portion formed by downwardly protruding from the base portion and a pair of extension arms formed by rearwardly extending from rear ends of both lateral sides of the extension portion, the island portion comprises an island portion main body and reinforcing end portions located at both lateral ends of the island portion main body, and the metal reinforcing member is molded on the reinforcing end portions to reinforce the strength of the reinforcing end portions.

Preferably, the metal reinforcing member further includes a first reinforcing wall bent downward from the main body and extending to cover the lateral outer surface of the reinforcing end portion, a second reinforcing wall bent from the bottom end of the first reinforcing wall and covering the bottom surface of the reinforcing end portion, and a pair of third reinforcing walls bent from the front and rear sides of the second reinforcing wall and covering the front and rear end surfaces of the reinforcing end portion.

Preferably, the bottom of the extension portion protrudes downwards to form a protruding portion, the rear end of the extension portion is recessed downwards from the top to form a soldering station, and the soldering station includes a plurality of soldering grooves corresponding to the plug terminals.

Preferably, the plug terminal comprises a U-shaped contact portion formed outside the island portion, a holding portion formed by extending the U-shaped contact portion backwards, and a solder tail extending from the holding portion backwards into the solder slot, and the U-shaped contact portion comprises a first contact arm formed on a front end face of the island portion, a second contact arm formed on a rear end face of the island portion, and a connecting portion connecting the first contact arm and the second contact arm and formed on a bottom face of the island portion.

Preferably, a positioning hole is formed in the top surface of the base corresponding to the connecting portion during injection molding, and the positioning hole is used for positioning the connecting portion.

Preferably, the plug terminal includes a signal terminal and a ground terminal which are arranged at an interval, the cable assembly includes a plurality of coaxial cables and a cable bracket which holds the coaxial cables as a whole, the coaxial cables include a central conductor which extends into the weld groove and is welded to the leg of the signal terminal, and the cable bracket includes a welding end which extends into the weld groove and is welded to the leg of the ground terminal.

This application board is to the board plug through set up the fluting on shield case's the cover roof form on the metal reinforcement and insert spacing sand grip in the fluting to spacing sand grip is spacing on the left and right sides orientation in the front and back the plug body, at last with the main part of metal reinforcement with shield case's cover roof spot welding is fixed together, realizes accurate location, prevents to appear rocking and shifting between plug body and the shield case.

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:

FIG. 1 is a perspective view of a board-to-board plug of the present application;

FIG. 2 is a perspective view of another angle of the plate-to-plate plug of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a combination view of the plug body, plug terminals and metal reinforcement of the board-to-board plug of the present application;

fig. 5 is a combination view of the plug body, plug terminals and metal reinforcement member of the board-to-board plug of the present application at another angle;

fig. 6 is a perspective view of the plug terminal of the plate-to-plate plug of the present application;

FIG. 7 is a perspective view of a metal reinforcement member of the plate-to-plate plug of the present application;

fig. 8 is a perspective view of the shield housing of the board-to-board plug of the present application;

FIG. 9 is a perspective view of the plate-to-plate plug of the present application with the shield shell removed;

FIG. 10 is a perspective view of the cable assembly of the plate-to-plate plug of the present application;

figure 11 is a perspective view of the shield housing of the board-to-board plug of the present application during assembly;

fig. 12 is a combination diagram of the board-to-board plug of the present application, before the plug body is injection molded, the plug terminal and the metal reinforcement are connected with the material strap.

Description of the main component symbols:

a shielding shell-10; a cover top plate-11; slotting-111; a guide bevel-112; an elastic projection-113; covering the front wall-12; covering the side wall-13; a first cover sidewall-131; an inner fold-132; a second cover sidewall-133; a protection portion-14; a first protection portion-141; a second protection portion-142; a support portion-143; a tightening part-144; a plug body-20; a base-21; a top wall-211; an island portion-22; an island body-221; a reinforced end-portion-222; an extension-23; a projection-231; an interior recess-232; a welding table-233; a first solder well-2331; a second solder well-2332; cover-2333; baffle-2334; postero-2335; an extension arm-24; a limiting step-241; an escape portion-25; a plug terminal-30; a U-shaped contact portion-31; a first contact arm-311; a second contact arm-312; a connecting portion-313; a holding portion-32; a fillet-33; signal terminal solder tail-331; ground terminal fillet-332; a metal reinforcement-40; a main body portion-41; a first reinforcing wall-42; a second reinforcing wall-43; a third reinforcing wall-44; convex strips-45; notch-46; cable assembly-50; a coaxial cable-51; a center conductor-511; an inner insulating layer-512; a braid-513; an outer insulating layer-514; a cable holder-52; solder pad-521; solder or conductive paste-522; a clamping bar-523; a welding arm-524; a bent portion-5241; end-5242 is welded.

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.

In the present application, the X direction shown in fig. 1 is the front in the left-right direction (lateral direction), the Y direction is the front in the front-rear direction (longitudinal direction), and the Z direction is the upper side in the up-down direction (vertical direction).

Referring to fig. 1 and 2, the plate-to-plate plug of the present application includes a plug body 20, a plurality of plug terminals 30 and metal reinforcements 40 integrally formed in the plug body 20, a cable assembly 50 connected to the plug terminals 30, and a shielding shell 10 covering the plug body 20.

Referring to fig. 4 and 5, the plug body 20 includes a base 21, an island 22 formed by protruding downward from the middle of the base 21, an extension 23 formed by extending rearward from the base 21, extension arms 24 formed by extending rearward from two lateral sides of the extension 23, and a relief portion 25 formed between a pair of the extension arms 24. The base 21 includes a top wall 211, and a positioning hole 213 is formed on the top surface of the top wall 211 corresponding to the island 22. The island portion 22 includes an island portion main body 221 and reinforcing end portions 222 formed at both lateral ends of the island portion main body 22. The island 22 is formed to protrude downward from the top plate 211.

The extension portion 23 includes a protrusion 231 protruding downward, inner recesses 232 formed at both lateral sides of the extension portion 23, and a land 233 recessed downward from a top surface of the extension portion 23. The soldering land 233 includes a plurality of soldering recesses corresponding to the plug terminals 30, and the soldering recesses include a first soldering recess 2331 and a second soldering recess 2332 formed in a staggered manner in a front-rear direction. The lower surface of the protrusion 231 is lower than the lower surface of the extension arm 24 to form a limit step 241 on the rear end surface of the protrusion 231.

As shown in fig. 6, the plug terminal 30 includes a U-shaped contact portion 31 integrally formed outside the island portion 22, a holding portion 32 extending rearward from the U-shaped contact portion 31, and a solder tail 33 formed at a rear end of the holding portion 32.

The U-shaped contact portion 31 includes a first contact arm 311 attached to the front end surface of the island 22, a second contact arm 312 attached to the rear end surface of the island 22, and a connecting portion 313 crossing the bottom surface of the island 22 and connecting the first and second contact arms 311, 312. The holding portion 32 is integrally formed in the top wall 211 of the base portion 21 and extends rearward into the extending portion 23, a positioning hole 213 formed in the top wall 211 passes through a space between the first and second contact arms 311, 312 of the U-shaped contact portion 31, so that when the plug body 20 is injection molded, an injection mold needle can conveniently clamp the connecting portion 313 from above through the positioning hole 213 to position the plug terminal 30. The solder leg 33 is formed by bending downward from the connecting portion 32 and then bending and extending backward, so that a relatively thick plastic layer (i.e., a solder stage 233) is provided between the solder leg 33 and the shield case 10.

The plug terminal 30 includes a signal terminal 30a and a ground terminal 30b spaced apart from each other, the solder leg 33 of the signal terminal 30a has a signal terminal solder leg 331 located in the first solder recess 2331, and the solder leg of the ground terminal 30b has a ground terminal solder leg 332 located in the second solder recess 2332. The first solder pot 2331 is positioned at the front end of the second solder pot 2332 to be offset in the front-rear direction, a cover 2333 covering the ground terminal 30b is formed between the first solder pot 2331, and a spacer 2334 is formed between the second solder pot 2332 and the rear extension 2335 of the first solder pot 2331. The signal terminal solder leg 331 and the ground terminal solder leg 332 have upper surfaces on the same plane in the vertical direction.

As shown in fig. 7, the metal reinforcing member 40 includes a main body 41 formed on the top wall 211, a first reinforcing wall 42 bent downward from the main body 41 and formed over the lateral outer side of the reinforcing end 222 of the island 22, a second reinforcing wall 43 bent inward from the bottom of the first reinforcing wall 42 and covering the bottom surface of the reinforcing end 222, a pair of third reinforcing walls 44 bent upward from the front and rear sides of the second reinforcing wall 43 and covering the front and rear end surfaces of the reinforcing end 222, and a protruding strip 45 bent upward from the lateral outer side of the main body 41. The upper surface of the main body portion 41 is exposed to the top surface of the top wall 211. The protruding strips 45 extend in the front-rear direction and have a certain length. The main body 41 has a notch 46 near the extending position of the protruding strip 45 for filling plastic material to make the combination of the plug body 20 and the metal reinforcement 40 more firm. The protruding strip 45 is formed by bending and extending upward from the rear end portion of the body 41.

Referring to fig. 3\ 9 and 10, the cable assembly 50 includes a plurality of coaxial cables 51 and a cable holder 52 for integrally combining the coaxial cables 51. The coaxial cable 51 includes a central conductor 511 welded to the fillet 33 of the signal terminal 30a, an inner insulating layer 512 covering the central conductor 511, a braid 513 covering the inner insulating layer 512, and an outer insulating layer 514 covering the braid 513. The cable holder 52 comprises a soldering lug 521, a clamping bar 523 for clamping the braided layers 513 of the coaxial cables 51 with the soldering lug 521, and soldering tin or conductive adhesive 522 for fixing the braided layers 513 of the coaxial cables 51 between the soldering lug 521 and the welding bar 523, wherein the soldering tin or conductive adhesive 522 is used for bonding and fixing the braided layers 513 of the coaxial cables 51 together and is integrally fixed with the soldering lug 521 and the clamping bar 523. The soldering lug 521 includes a soldering arm 524 extending forward after being bent, and the soldering arm 524 includes a bent portion 2541 extending in the vertical direction and a soldering end 5242 extending forward from the bent portion 2541. The soldering end 5242 is at the same level as the central conductor 511.

The cable assembly 50 is assembled to the soldering stage 233 of the plug body 20 from top to bottom, the inner insulating layers 512 of the plurality of coaxial cables 51 are clamped into the escape portion 25 between the pair of extension arms 24, the cable holder 52 is located behind the pair of extension arms 24, and the central conductor 511 is soldered to the signal terminal leg 331 of the signal terminal 30a extending into the first soldering bath 2331 over the rear extension portion 2335 in the forward direction. The soldering end portion 5242 of the soldering lug 521 extends to the upper side of the ground terminal leg 332 of the ground terminal 30b in the second soldering channel 2332 and is soldered and fixed.

The first solder pot 2331 and the second solder pot 2332 are staggered in the front-rear direction, so that the area of the first solder pot 2331 and the second solder pot 2332 can be enlarged in the transverse direction, the tin-containing capacity of the first solder pot 2331 and the second solder pot 2332 is increased, the bonding force of a bonding pad is enhanced, and the risks that the width of the bonding pad is too small, the requirement on welding precision is high and short circuit is easily caused because the welding feet 33 of the signal terminal 30a and the grounding terminal 30b are positioned at the same position in the front-rear direction in the prior art are solved. The upper surface of the soldering station 23 is lower than the upper surface of the top wall 211, and the surfaces of the first and second soldering recesses 2331, 2332 are lower than the upper surface of the extension arm 24. The soldered upper end of the center conductor 511 is lower than the upper surface of the cable holder 52.

The first and second solder recesses 2331, 2332 are arranged on the soldering lands 23 of the plug body 20 in a staggered manner from front to back with respect to the solder tails 33 of the signal terminals 30a and the ground terminals 30b, so as to widen the areas of the first and second solder recesses 2331, 2332 in the transverse direction, thereby solving the technical problems of the prior art that the solder recesses are too small in width and the soldering precision is too high because the solder tails 33 of the plug terminals 30 are located in the same transverse direction.

As shown in fig. 12, when the plug body 20 is injection molded, the front end and the rear end of the plug terminal 30 are respectively connected to the first terminal material strip 30c and the second terminal material strip 30d, the transverse outer side of the metal reinforcement 40 is connected to the reinforcement material strip 40a, the left metal reinforcement 40 and the right metal reinforcement 40 are connected by the same reinforcement 40a, and the reinforcement material strip 40a and the first or the second terminal material strip 30c and 30d are positioned in an overlapping manner. Meanwhile, the positioning pin of the injection mold vertically clamps the connection portion 313 of the plug terminal 30 through the positioning hole 213 for positioning. After injection molding, the second terminal tape 30d connected to the rear end of the solder fillet 33 and the reinforcement tape 40a connected to the metal reinforcement 40 are cut off, and the first terminal tape 30c connected to the front of the plug terminal 30 is left. The first terminal strip 30c is left to be cut after the cable assembly 50 is automatically assembled.

As shown in fig. 8 and 11, the shielding shell 10 includes a top cover plate 11 covering the top wall 211 of the plug body 20 and the cable support 52, a front cover wall 12 formed by bending the front end of the top cover plate 11 downward, a side cover wall 13 formed by bending and extending the two lateral ends of the front cover wall 12 backward, and a protection portion 14 formed by bending the two lateral sides of the top cover plate 11 downward and surrounding the side cover wall 13. The position of the top cover plate 11 corresponding to the protruding strip 45 is provided with a slot 111, and the outer periphery of the slot 111 facing one side of the plug body 20 is formed with a guiding inclined plane 112 by stamping. The transverse width of the slot 111 is greater than the thickness of the convex strip 45, two transverse sides of the slot 111 respectively extend oppositely to form a pair of elastic convex blocks 113, the distance between the elastic convex blocks 113 is consistent with the thickness of the convex strip 45 so as to clamp the convex strip 45 in the left-right direction, and the length of the slot 111 in the front-back direction is equal to the length of the convex strip 45 so as to limit the convex strip 45 in the front-back direction. The elastic protrusions 113 have certain elasticity.

The covering sidewall 13 includes a first covering sidewall 131 located on the lateral outer side of the base 21, an inward folded portion 132 formed by oppositely folding the rear end of the first covering sidewall 131 and located on the lateral two sides of the extending portion 23, and a second covering sidewall 133 formed by extending the rear end of the inward folded portion 132 backward and clamped between the extending arm 23 and the lateral outer side of the cable holder 52. The protection part 14 includes a first protection part 141 located outside the first covering sidewall 131 and the inward folding part 132, a second protection part 142 extending from the back of the first protection part 141 and located outside the second covering sidewall 133, a support part 143 bent reversely from the tail of the second protection part 142 and extending to the inner side of the second covering sidewall 133, and a tightening part 144 bent from the bottom of the second protection part 142 to the cable bracket 52 and covering the lower surface of the cable bracket 52. The gripping portion 144 is supported below a pair of the extension arms 24.

Simultaneously, the part 144 of cramping still receives supporting part 143 is the ascending support in upper and lower direction, avoids cramping part 144 only to support in on the extension arm 24 of plastic material, and the holding power is not enough and lead to yielding defect, and directly certainly the inside reverse bending of protection part 14 rear end forms supporting part 143 can not cause the product size grow, the advantage of saving space.

The shielding shell 10 is directly bent inward at the rear end of the protection portion 14 to form a support portion 143 located inside the second covering sidewall 133 to support the tightening portion 144 bent from the bottom of the second protection portion 142, so as to avoid the problem that the conventional tightening portion 144 is only supported by the extension arm 24 made of plastic material to cause bending deformation, and the external dimension of the product is not changed, thereby saving space. The upper surface of the main body portion 41 of the metal reinforcing member 40 is in contact with the cover top plate 11.

When the board-to-board plug is assembled, the cable assembly 50 is assembled and welded on the welding table 23 at the rear end of the plug body 20 according to the above manner, the plug body 20 is installed into the space enclosed by the covering top plate 11 and the covering side wall 13 of the shielding shell 10 from bottom to top, and at the moment, the convex strip 45 is clamped into the groove 111 on the covering top plate 11 to limit the position in the front, back, left and right directions; then, the tightening portion 144 is bent to make the tightening portion 144 abut against the limiting step 241 at the rear end edge of the protruding portion 231 to prevent the plug body 20 from withdrawing backwards. Finally, the upper surface of the main body portion 41 of the metal reinforcing member 40 and the cover top plate 11 are welded and fixed together by spot welding on the cover top plate 11 to reinforce the coupling force between the header body 20 and the shield shell 10.

This application board is to the board plug through set up fluting 111 on shield shell 10's cover roof 11 form on the metal reinforcement 40 and insert spacing sand grip 45 in the fluting 111 to limit on the direction about the front in the front the plug body, at last with metal reinforcement 40 the main part 41 with shield shell 10's cover roof 11 spot welding is fixed together, realizes accurate location, prevents to appear rocking and shifting between plug body 20 and shield shell 10.

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 board-to-board plug comprises a plurality of plug terminals, a metal reinforcing piece, a plug body, a cable assembly and a shielding shell, wherein the plug body integrates the plug terminals and the metal reinforcing piece in a fixed mode, the cable assembly is connected with the plug terminals, the shielding shell covers the plug body, the shielding shell comprises a base portion and an extending portion formed by extending the base portion backwards, the shielding shell comprises a covering top plate covering the top surface of the plug body, a covering front wall formed by bending the front end of the covering top plate downwards, covering side walls formed by bending the transverse two ends of the covering front wall backwards and protecting portions located outside the covering side walls and bent downwards from the transverse two sides of the covering top plate, the board-to-board plug is characterized in that the metal reinforcing piece comprises a main body portion exposed on the top surface of the base portion and convex strips formed by extending upwards from the main body portion, and grooves for the convex, the main body part is in contact with the cover top plate and is welded and fixed together.

2. The board-to-board plug according to claim 1, wherein said slot and said rib each extend in a front-rear direction, a length of said slot in the front-rear direction is equal to a length of said rib, and a guide slope is punched in said slot toward an outer peripheral edge of a side of said plug body.

3. The board-to-board plug of claim 2, wherein the transverse width of said slot is greater than the thickness of said rib, and a pair of resilient protrusions are formed on each of the two transverse sides of said slot and protrude therefrom, respectively, the distance between said pair of resilient protrusions being equal to the thickness of said rib.

4. The board-to-board plug according to claim 3, wherein after the protrusion is engaged in the slot, the slot limits the protrusion in four directions, i.e., front, back, left, and right, to prevent the plug body in which the metal reinforcement is formed from shaking.

5. The board-to-board plug of claim 1, wherein said plug body further includes an island portion formed to project downward from said base portion and a pair of extension arms formed to extend rearward from rear ends of both lateral sides of said extension portion, said island portion including an island portion main body and reinforcing end portions at both lateral ends of said island portion main body, said metal reinforcing member being molded on said reinforcing end portions to reinforce the strength of said reinforcing end portions.

6. The board-to-board plug of claim 5, wherein said metal reinforcing member further comprises a first reinforcing wall bent downward from said main body and covering a lateral outer side surface of said reinforcing end portion, a second reinforcing wall bent from a bottom end of said first reinforcing wall and covering a bottom surface of said reinforcing end portion, and a pair of third reinforcing walls bent from front and rear sides of said second reinforcing wall and covering front and rear end surfaces of said reinforcing end portion.

7. The board-to-board plug of claim 5, wherein the bottom of the extension portion protrudes downward to form a protrusion, the rear end of the extension portion is recessed downward from above to form a soldering station, and the soldering station includes a plurality of soldering grooves corresponding to the plug terminals.

8. The board-to-board plug of claim 7, wherein said plug terminal includes a U-shaped contact portion formed outside said island portion, a holding portion formed to extend rearward from said U-shaped contact portion, and a solder tail extending rearward from said holding portion into said solder recess, said U-shaped contact portion including a first contact arm formed on a front face of said island portion, a second contact arm formed on a rear face of said island portion, and a connecting portion connecting said first and second contact arms and formed on a bottom face of said island portion.

9. The board-to-board plug of claim 8, wherein the top surface of the base portion at the location corresponding to the connecting portion is formed with a positioning hole for positioning the connecting portion during injection molding.

10. The board-to-board plug of claim 7, wherein the plug terminal includes a signal terminal and a ground terminal spaced apart from each other, the cable assembly includes a plurality of coaxial cables and a cable holder holding the plurality of coaxial cables together, the coaxial cables include center conductors extending into the solder slots and soldered to the solder tails of the signal terminals, and the cable holder includes soldered ends extending into the solder slots and soldered to the solder tails of the ground terminal.

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