CN211929764U - High-frequency board-to-board socket - Google Patents

Abstract

The utility model provides a high frequency board is to board socket, includes the socket terminal, will socket terminal fixing first insulator as an organic whole and cover and locate the socket shell outside the first insulator, the socket terminal include connecting portion, certainly the elastic contact arm that the connecting portion front end upwards bent formation, certainly the connecting portion rear end extends the fixed part that forms and certainly the leg that forms is extended to the fixed part back, the high frequency board is still including inserting to the board socket second insulator in the socket shell, the second insulator with be formed with the grafting chamber between the first insulator, the second insulator orientation grafting chamber one side is formed with a plurality of terminal grooves through the jube separated, elastic contact arm part at least is located the terminal inslot quilt the jube separated. This application realizes socket terminal integrative injection moulding and reduces and makes the degree of difficulty.

Description

High-frequency board-to-board socket

Technical Field

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

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. As disclosed in CN108418022A, the high frequency board-to-board socket and plug include a socket body, socket terminals assembled in the socket body from bottom to top, and a socket fixing member surrounding the periphery of the socket body, wherein the socket fixing member is used for reinforcing the strength of the socket body and shielding high frequency signals. The socket terminal is riveted and pressed into the terminal groove of the socket body in an upward assembling mode for fixing, but because the socket body is thin in plastic, internal stress can be generated after the socket terminal is inserted, and when the socket terminal passes through an IR furnace, plastic warping deformation is easily caused due to the release of the internal stress, so that the product precision is not high. When the socket terminal and the socket body are manufactured in an integrated injection molding mode, the socket terminal is provided with the elastic end parts which cannot be in contact with the socket body, sealing glue is required to be sealed at the positions of the elastic end parts, isolation fences are required to be arranged among the elastic end parts, the precision requirement on an injection mold is very high, the manufacturing process difficulty is very high, and defects are prone to occurring.

SUMMERY OF THE UTILITY MODEL

Therefore, there is a need for a high frequency board-to-board socket that facilitates the integral molding of the socket terminals in the socket body and reduces the precision of the injection mold to reduce the manufacturing difficulty.

For solving above-mentioned technical problem, the application provides a high frequency board is to board socket, include socket-outlet terminal, incite somebody to action socket-outlet terminal fixing first insulator as an organic whole and cover and locate this external socket shell of first insulator, socket-outlet terminal include connecting portion, certainly the connecting portion front end upwards bends the elasticity contact arm that forms, certainly connecting portion rear end extends the fixed part that forms and certainly the leg that extends the formation after the fixed part, high frequency board is still including inserting to board socket-outlet second insulator in the socket-outlet shell, second insulator with be formed with the grafting chamber between the first insulator, second insulator orientation grafting chamber one side is formed with a plurality of terminal grooves through partition contact arm partition, elasticity part at least is located the terminal inslot quilt the partition is divided.

Preferably, the socket housing includes a frame having a cavity penetrating vertically, a fixing and welding portion formed by folding the bottom of the frame outward, and a covering portion formed by folding the top of the frame toward the cavity, and the peripheries of the first and second insulating bodies include a crimping groove abutting against the lower side of the covering portion.

Preferably, a metal insert is embedded in the second insulating body, the barrier includes a high platform portion located on the front side and a low platform portion located on the rear side of the high platform portion, and the elastic contact arm includes a bent extension portion formed by bending the connecting portion obliquely to the rear upper side, a bent end portion formed by bending the top end of the bent extension portion obliquely to the front upper side, and a contact portion formed at a joint of the bent extension portion and the bent end portion.

Preferably, the bending extension part and the bending end part are at least partially separated by the high terrace part, the front end of the connecting part is separated by the low terrace part, and the contact part protrudes into the plugging cavity.

Preferably, the first insulating body includes a bottom wall, a first peripheral wall extending upward from a rear side of the bottom wall, guide portions formed at two lateral ends of the bottom wall and the first peripheral wall, and a mating notch formed at a front end of the bottom wall, the second insulating body further includes a second peripheral wall opposite to the first peripheral wall, the mating cavity is located between the first peripheral wall and the second peripheral wall, the fixing portion of the socket terminal is fixed in the first peripheral wall in a forming manner, and the connecting portion and the elastic contact arm extend from the front end of the bottom wall and are suspended in the mating notch.

Preferably, the fixing portion of the receptacle terminal includes a first arm portion bent upward from a rear end of the connecting portion, a second arm portion bent backward from a top of the first arm portion, and a bent top portion connecting the first and second arm portions, a front end of the first peripheral wall is formed with a front protrusion portion facing the plug cavity, the first arm portion is located on a surface of the front protrusion portion so as to be exposed in the plug cavity, and the solder tail extends rearward from a bottom of the second arm portion out of the first insulating body.

Preferably, the soldering portion of the socket housing is formed by outwardly folding the front side and the two lateral sides of the frame, the bottom of the rear side of the frame is provided with an avoiding portion, the solder leg extends out of the first insulating body from the avoiding portion, and the first peripheral wall further includes an isolating portion which partially covers the solder leg and isolates the solder leg from the socket housing.

Preferably, the metal insert includes a middle body, two end portions formed at two lateral ends of the middle body, and a tearing portion formed by tearing and bending backward from above the middle body, the middle body and the tearing portion are integrally embedded in the second peripheral wall, and the two end portions are exposed at two lateral ends of the second peripheral wall.

Preferably, the guiding portion includes a guiding cavity, a longitudinal side wall located at a lateral outer side of the guiding cavity, and a pair of lateral side walls located at two longitudinal sides of the guiding cavity, the pair of lateral side walls located at a rear side are connected to two lateral ends of the first peripheral wall, and the pair of lateral side walls located at a front side are located at two lateral sides of the mating notch.

Preferably, a pair of lateral side walls located at the front side are respectively provided with a matching portion, two end portions of the metal insert are clamped into the matching grooves and clamped and fixed by the lateral side walls and the frame body, the matching portion further comprises a first matching portion and a second matching portion located below and above the lateral outer side, the two end portions comprise a lateral protruding portion and a lateral inward concave portion which are respectively matched with the first matching portion and the second matching portion, and the distance between the first matching portion and the second matching portion is greater than the distance between the first matching portion and the second matching portion.

This application high frequency board is fixed in first insulator body to the board socket through the fixed part shaping earlier of socket terminal, and on the second insulator body again injection moulding spaced apart the second insulator body of the elasticity contact arm of socket terminal, finally, will respectively first, second insulator body equipment extremely socket shell internal fixation realizes fixed with the injection moulding of socket terminal, has avoided the high problem of the injection moulding degree of difficulty of elasticity contact arm position department simultaneously.

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 high frequency board-to-board socket of the present application;

fig. 2 is a perspective view of a socket terminal of the high frequency board-to-board socket of the present application;

fig. 3 is a perspective view of a metal insert of the high-frequency board-to-board socket of the present application;

fig. 4 is a perspective view of the high-frequency board of the present application after injection molding of the metal insert of the board-to-board socket;

fig. 5 is a perspective view of the high-frequency board of the present application after injection molding of the socket terminal of the board-to-board socket;

fig. 6 is a perspective view of another angle after the socket terminal of the high-frequency board-to-board socket of the present application is injection molded;

fig. 7 is a perspective view of the high-frequency board assembled to the socket housing after the socket terminals of the board-to-board socket are injection molded;

fig. 8 is a sectional view taken along the broken line a-a shown in fig. 1.

Description of the main component symbols:

a socket housing-10; a frame body-11; a weld-fixing part-12; a cavity-13; a cover-14; an avoidance part-15; a socket terminal-20; a connecting part-21; a resilient contact arm-22; bending the extension part-221; a contact portion-222; bending the end-223; a fixed part-23; a first arm portion-231; bending the top part-232; a second arm portion-233; a solder tail-24; a first insulating body-30; a bottom wall-31; a first peripheral wall-32; anterior convex-321; a notch groove-322; a separator-323; a guide portion-33; a guide cavity-331; longitudinal side walls-332; a lateral sidewall-333; a matching gap-34; a second insulating body-40; a second peripheral wall-41; -42; a plateau-421; plateau-422; a terminal groove-43; a metal insert 50; an intermediate body-51; two end portions-52; a transverse projection-521; a transverse fillet-522; a weld-53; a tear-off portion-54; a trench-55; crimp grooves-25, 45.

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 right direction of the left-right direction (lateral direction), the Y direction is the front in the front-back direction (longitudinal direction), and the Z direction is the upper direction in the vertical direction.

Referring to fig. 1 to 8, the high-frequency board-to-board socket of the present invention includes a socket terminal 20, a first insulating body 30 integrally holding the socket terminal, a metal insert 50, a second insulating body 40 forming the metal insert 50 therein, and a socket housing 10 integrally holding the first and second insulating bodies 30, 40. A plug cavity 60 is defined between the first insulating body 30 and the second insulating body 40.

The receptacle housing 10 includes a frame 11, a solder fixing portion 12 formed by bending and stretching from the bottom of the frame 11 toward the outer periphery, a cavity 13 formed by surrounding the frame 11 and penetrating in the vertical direction, a covering portion 14 formed by bending from the top of the frame 11 toward the cavity 13, and a relief portion 15 provided at the rear end of the frame 11.

The fixing and welding part 12 is formed by bending the front end of the frame body 11 and the bottoms of the left side and the right side, and the fixing and welding part 12 is perpendicular to the frame body 11. The escape part 15 is opened at the bottom of the rear end of the frame body 11, and the covering part 14 partially covers the cavity 13.

As shown in fig. 2, the receptacle terminal 20 includes a connecting portion 21, an elastic contact arm 22 formed by bending and extending from the front end of the connecting portion 21 obliquely and back and up, a fixing portion 23 formed by bending and bending the rear end of the connecting portion 21 upwards and then downwards, and a solder tail 24 formed by extending from the fixing portion 23 backwards. The elastic contact arm 22 includes a bent extension 221 bent upward and rearward from the front end of the connection portion 21, a bent end 223 bent upward and forward from the bent extension 221, and a contact 222 formed at the junction of the bent extension 221 and the bent end 223. The fixing portion 23 includes a first arm 231 bent and extended upward and vertically from the rear end of the connecting portion 21, a second arm 233 bent and extended downward from the top of the first arm 231, and a bent top 232 connecting the first and second arms 231, 233. The inner side surface of the first arm 231 facing the contact portion 222 may serve as an electrical contact portion. The contact point portion 222 and the first arm portion 231 are located on both sides of the insertion cavity 60 in the front-rear direction, respectively.

Referring to fig. 5, 6 and 7, the first insulating body 30 includes a bottom wall 31, a first peripheral wall 32 integrally extending upward from a rear end of the bottom wall 31, guiding portions 33 formed at two lateral ends of the first insulating body 30, and a mating notch 34 formed at a front end of the bottom wall 31. The first peripheral wall 32 includes a front projection 321 projecting toward the front end, a notch 322 formed by recessing downward at the top rear end of the first peripheral wall 32, and a separation portion 323 covering the solder tail 24 and separating the solder tail 24 from the edge of the relief portion 15 of the socket housing 10. The guide portion 33 includes a pair of longitudinal side walls 332 located at the outermost side in the transverse direction, a pair of lateral side walls 333 connecting both ends of the longitudinal side walls 332, and a guide cavity 331 defined by the longitudinal side walls 332 and the lateral side walls 333, and the two lateral side walls 333 located at the rear side are connected to both ends of the first peripheral wall 32. The first peripheral wall 32, the longitudinal side wall 332 and the transverse side wall 333 are provided at the top of their peripheries with a press-fit groove 35 abutting against the lower side of the covering portion 14 of the socket housing 10. The free ends of the pair of lateral side walls 333 at the front end are provided with engaging portions 334, the engaging portions 334 include first engaging portions 3341 at the lower side, second engaging portions 3342 at the upper side, and engaging grooves 3343 between the front side surfaces of the lateral side walls 333 and the first and second engaging portions 3341 and 3342, and the distance between the pair of first engaging portions 3341 is greater than the distance between the pair of second engaging portions 3342.

The socket terminal 20 is integrally formed in the first insulating body 30, wherein the fixing portion 23 of the socket terminal is fixed in the first peripheral wall 32, and the side surface of the first arm 231 facing the contact portion 222 is located on the front end surface of the front projection 321 and exposed to the rear side of the plugging chamber 60. A portion of the connecting portion 21 and the elastic contact arm extend forward from the bottom wall 31 and are in a suspended state. The solder tail 24 extends from the bottom of the first peripheral wall 32 to the back of the first insulating body 30, the solder tail 24 extends through the lower part of the relief portion 15, and the isolation portion 323 covers the part of the solder tail 24 except the lower surface and electrically isolates the solder tail 24 from the socket housing 10.

Referring to fig. 3 and 4, the metal insert 50 includes a middle body 51, two end portions 52 located at two lateral ends of the middle body 51, a welding portion 53 located at the bottom of the two end portions 52, a tearing portion 54 formed by tearing and bending from the upper side of the middle body 51 toward the rear, and a groove 55 located between the welding portion 53 and the middle body 51. A lateral protruding portion 521 is formed below lateral outer side surfaces of the two end portions 52 and is engaged with the first engaging portion 3341, and a lateral inner recessed portion 522 is formed above the lateral protruding portion 521 and is engaged with the second engaging portion 3342.

The second insulating body 40 includes a second peripheral wall 41 in which the intermediate body 51, the tearing portion 54 and the two end portions 52 are formed, a plurality of partitions 42 formed on the rear side of the second peripheral wall 41, a plurality of terminal grooves 43 divided by the partitions 42, and a further crimping groove 45 formed on the top front edge of the second peripheral wall 41 and abutting against the lower surface of the covering portion 14. The partition 42 includes a high table portion 421 located on the front side and a low table portion 422 located on the rear side of the high table portion 421, and the upper surface of the low table portion 422 is lower than the upper surface of the high table portion 421. The two end portions 52 are exposed at both lateral ends of the second peripheral wall 41.

Referring to fig. 1, 2, 6 and 7, the assembly process of the present application will be described in detail, first, the first insulating body 30 formed with the socket terminal 20 is installed into the socket housing 10 from the bottom up; the second insulating body 40 formed with the metal insert 50 is inserted into a position between the pair of lateral side walls 333 from bottom to top, the two end portions 52 of the metal insert 50 are clamped into the fitting groove 3343 of the first insulating body 30 and fixed between the fitting groove 3343 and the frame body, and the lateral protruding portion 521 and the lateral inner recessed portion 522 are respectively connected with the first and second fitting portions 3341 and 3342.

Meanwhile, part of the connecting portion 21 and the elastic contact arm 22 of the receptacle terminal 20 are located in the terminal groove 43 of the second insulating body 40, wherein the bent extending portion 221 and the bent end portion 223 are at least partially located between the raised portions 421 of the partition 42, the connecting portion 21 is at least partially located between the lowered portions 422, and the contact portion 222 protrudes into the plugging cavity 60.

According to the high-frequency board-to-board socket, the fixing portion 23 of the socket terminal 20 is fixed in the first insulating body 30 in a forming mode, then the second insulating body 40 of the elastic contact arm 22 of the socket terminal 20 is spaced in an injection molding mode on the second insulating body 40, and finally the first insulating body 30 and the second insulating body 50 are assembled into the socket shell 10 in a fixing mode, so that the injection molding fixation of the socket terminal is achieved, and the problem that the injection molding difficulty of the position of the elastic contact arm 22 is high is solved.

In the present application, the socket terminal 20 and the first insulating body 30 are directly molded into a whole by injection, and meanwhile, after the second insulating body 40 and the metal insert 50 are molded into a whole by injection, the first and second insulating bodies 30 and 40 are assembled into the socket housing 10 again, so that compared with the conventional riveting assembly of the socket terminal, the socket terminal has better precision and yield; the second insulating body 40 and the metal insert 50 are injection molded, and when the second insulating body 40 and the metal insert 50 thereon are assembled by riveting, the strength and rigidity of the metal insert 50 are both greater than those of the conventional socket terminal 20, so that the riveting assembly precision of the second insulating body 40 is higher, and the yield is better.

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. The utility model provides a high frequency board is to board socket, includes the socket terminal, will socket terminal fixing first insulator as an organic whole and cover and locate the socket shell outside the first insulator, the socket terminal include connecting portion, certainly the elastic contact arm that the connecting portion front end upwards bent the formation, certainly the connecting portion rear end extends the fixed part that forms and certainly the leg that forms is extended to the fixed part back, its characterized in that, the high frequency board is still including inserting to the board socket second insulator in the socket shell, the second insulator with be formed with the grafting chamber between the first insulator, the second insulator orientation grafting chamber one side is formed with a plurality of terminal grooves through the jube separated, elastic contact arm part at least is located the terminal inslot by the jube separated.

2. The high-frequency board-to-board socket according to claim 1, wherein the socket housing comprises a frame having a cavity extending therethrough, a solder portion folded outward from the bottom of the frame, and a cover portion folded inward from the top of the frame toward the cavity, and the first and second insulating bodies have a press-fit groove formed in the outer periphery thereof to abut against the lower portion of the cover portion.

3. The high-frequency board-to-board socket according to claim 2, wherein the second insulating body has a metal insert embedded therein, the barrier includes a high platform portion located on a front side and a low platform portion located on a rear side of the high platform portion, and the elastic contact arm includes a bent extension portion formed by bending obliquely rearward and upward from the connecting portion, a bent end portion formed by bending obliquely forward and upward from a top end of the bent extension portion, and a contact portion formed at a junction of the bent extension portion and the bent end portion.

4. The high frequency board-to-board socket according to claim 3, wherein said bent extension and bent end are at least partially separated by said plateau, said connection portion front end is separated by said plateau, and said contact portion protrudes into said plug cavity.

5. A high-frequency board-to-board socket according to claim 3, wherein the first insulator includes a bottom wall, a first peripheral wall extending upward from a rear side of the bottom wall, guide portions formed at both lateral ends of the bottom wall and the first peripheral wall, and a mating notch formed at a front end of the bottom wall, the second insulator further includes a second peripheral wall opposite to the first peripheral wall, the mating cavity is located between the first peripheral wall and the second peripheral wall, the fixing portion of the socket terminal is formed and fixed in the first peripheral wall, and the connecting portion and the elastic contact arm extend from the front end of the bottom wall and overhang the mating notch.

6. The high-frequency board-to-board socket according to claim 5, wherein the fixing portion of the socket terminal includes a first arm portion bent upward from a rear end of the connecting portion, a second arm portion bent in a direction opposite to a top portion of the first arm portion, and a bent top portion connecting the first and second arm portions, a front end of the first peripheral wall is formed with a front projection toward the plug cavity, the first arm portion is located on a surface of the front projection to be exposed in the plug cavity, and the solder tail extends rearward from a bottom portion of the second arm portion out of the first insulating body.

7. The high-frequency board-to-board socket according to claim 6, wherein the solder fixing portion of the socket housing is formed by folding back the frame body from the front side and the two lateral sides, a recess is formed at the bottom of the rear side of the frame body, the solder leg extends out of the first insulating body from the recess, and the first peripheral wall further includes a spacer portion for covering the solder leg portion and for separating the solder leg from the socket housing.

8. The high-frequency board-to-board socket according to claim 5, wherein the metal insert comprises a middle body, two end portions formed at two lateral ends of the middle body, and a tearing portion formed by tearing and bending backward from above the middle body, the middle body and the tearing portion are integrally embedded in the second peripheral wall, and the two end portions are exposed at two lateral ends of the second peripheral wall.

9. The high-frequency board-to-board socket according to claim 8, wherein the guide portion includes a guide cavity, a longitudinal side wall located laterally outside the guide cavity, and a pair of lateral side walls located on both longitudinal sides of the guide cavity, the pair of lateral side walls located on the rear side being connected to both lateral ends of the first peripheral wall, and the pair of lateral side walls located on the front side being located on both lateral sides of the mating notch.

10. The high-frequency board-to-board socket according to claim 9, wherein a pair of the lateral side walls located at the front side are respectively formed with a fitting portion, both end portions of the metal insert are inserted into the fitting grooves and are clamped and fixed by the lateral side walls and the frame body, the fitting portion further includes first and second fitting portions located below and above the lateral outer side, the both end portions include lateral protruding portions and lateral recessed portions respectively fitted with the first and second fitting portions, and a distance between a pair of the first fitting portions is greater than a distance between a pair of the second fitting portions.

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