CN216624651U

CN216624651U - Socket connector

Info

Publication number: CN216624651U
Application number: CN202122903384.6U
Authority: CN
Inventors: 唐敏
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-05-27
Anticipated expiration: 2031-11-24

Abstract

A socket connector comprises a first terminal set, a second terminal set, an insulating body for integrally fixing the first terminal set and the second terminal set, and a metal shell sleeved outside the insulating body, the insulating body includes a first insulator molding the first terminal group and a second insulator molding the second terminal group, each conductive terminal of the first terminal set and the second terminal set comprises a contact part exposed on the upper surface and the lower surface of the insulating body respectively, a fixing part extending backwards from the contact part and wrapping the insulating body, and a first welding foot and a second welding foot extending out of the insulating body from the fixing part, the first welding leg extends out of the rear side of the first insulator, the second welding leg is formed by downwards and vertically bending from the tail end of the fixing part, the second welding feet are of a pin type structure, and the second insulator comprises a fixing plate for forming and fixing the second welding feet. The socket connector is low in manufacturing cost.

Description

Socket connector

Technical Field

The present invention relates to the field of electrical connectors, and more particularly, to a receptacle connector.

Background

A High Definition Multimedia Interface (HDMI) is a High-speed data transmission Interface widely used in televisions and computers. The HDMI socket is integrated in a connecting device of board end for transmit high definition audio and video signal, the HDMI socket including be equipped with the butt joint tongue the insulator, the shaping in first terminal group and second terminal group in the insulator, first terminal group is including exposing in the contact site of butt joint tongue upper surface and extending to the outer leg of insulator, second terminal group is including exposing in the contact site of butt joint tongue lower surface and certainly the contact site extends backward the outer leg of insulator. On a structural design specification, the leg of first terminal group adopts SMT SMD structure and circuit board welding, the leg of second terminal group is then in insulator afterbody bends perpendicularly downwards and forms the contact pin type pin, inserts printed circuit board through the leg and predetermines downthehole welding again, and the contact pin type pin produces the skew easily, causes unable counterpoint, at this moment, for guaranteeing the stitch relative position is fixed controllable, generally can establish a fixed plate on the stitch and hold back the relative position of stitch. However, the additional addition of a fixing plate will increase the manufacturing cost and the assembling cost.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a socket connector with stable pins and low cost.

In order to solve the above technical problem, the present application provides a socket connector, including a first terminal set, a second terminal set, an insulator integrally fixing the first terminal set and the second terminal set, and a metal shell covering the insulator, wherein the insulator includes a first insulator forming the first terminal set and a second insulator forming the second terminal set, each conductive terminal of the first terminal set and the second terminal set includes a contact portion exposed on the upper and lower surfaces of the insulator, a first solder leg and a second solder leg extending from the contact portion to the rear and wrapping the insulator, the first solder leg and the second solder leg extend from the fixing portion to the outside of the insulator, the first solder leg extends out of the rear side of the first insulator, the second solder leg is formed by bending the tail end of the fixing portion downward and vertically, and the second solder leg is of a pin type structure, the second insulator comprises a fixing plate for forming and fixing a plurality of second welding feet, and the first insulator and the second insulator are fixed together.

Preferably, the fixing plate of the second insulator comprises a plate body and a plurality of raised portions formed by protruding downwards from the plate body, and each raised portion corresponds to one second solder leg and wraps at least part of the second solder leg.

Preferably, the first insulator includes a first base portion, a mating tongue portion formed to extend forward from the first base portion, and a tail portion formed to extend backward from the first base portion, the second insulator includes a second base portion configured to mate with the first base portion to form the base portion, and the fixing plate configured to extend backward from the second base portion to form the mating tail portion, and contact portions of the first terminal group and the second terminal group are exposed to upper and lower surfaces of the mating tongue portion, respectively.

Preferably, the lower surface of the first base is recessed upwards to form a positioning step, the lower surface of the first base is located on the inner side of the positioning step and protrudes downwards to form a first clamping hook, the two lateral sides of the second base protrude upwards to form a positioning side part buckled on the positioning step and a first clamping groove formed by penetrating from the inner side of the positioning step, and the first clamping hook is buckled in the first clamping groove.

Preferably, the lateral sides and the rear side of the tail part protrude downwards to form a side wall and a tail wall, the side wall and the tail wall are enclosed to form a fastening groove, and the fixing plate is fastened in the fastening groove.

Preferably, a second clamping groove is formed in the inner sides of the pair of side walls of the tail portion in a vertically penetrating mode, and second clamping hooks clamped in the second clamping grooves are formed in the two transverse sides of the fixing plate in an upward protruding mode.

Preferably, one side of the bottom surface of the first base, which is close to the tail portion, is recessed upwards to form a recessed groove, and the rear end of the upper side of the second base is protruded upwards to form a clamping block clamped in the recessed groove.

Preferably, metal casing is including the cavity portion that is located the front end and certainly the covering portion that cavity portion backward extension formed, cavity portion including the front and back butt joint chamber that link up, certainly cavity portion top surface rear side is towards the preceding location arch of pushing down the sunken formation of formation and certainly cavity portion bottom surface rear end to the back location fixture block that the punching press of butt joint chamber formed, covering portion include the roof, certainly the lateral wall that the horizontal both sides downwardly extending of roof formed, certainly the lateral wall continues the welding part that downwardly extending formed and offers along the fore-and-aft direction locating seam on the lateral wall.

Preferably, a front positioning groove is formed in one side, close to the butt joint tongue portion, of the front end of the first base portion of the first insulator, a rear positioning groove is formed in one side, close to the fixing plate, of the bottom surface of the second base portion of the second insulator in an upwards recessed mode, the front positioning protrusion abuts against the front positioning groove, the rear positioning fixture block is bent and clamped into the rear positioning groove, a stop block is formed in the rear end of the rear positioning groove in a downward protruding mode, and the stop block abuts against the rear end edge of the cavity portion.

Preferably, the lateral outer side of the side wall of the first insulator protrudes in the front-rear direction to form a limiting bump, and the limiting bump is clamped into the positioning slit.

This application socket connector is through with first terminal group and the independent injection moulding of second terminal group and formation first insulator and second insulator, and second insulator rear end forms fixedly a plurality ofly the fixed plate of contact pin formula second leg, and the second insulator with after mutually fixed again between the first insulator in the metal casing, compare in prior art, need not to set up alone again and be used for fixing the fixed plate of the second leg of contact pin formula has simplified manufacturing process, has practiced thrift manufacturing cost.

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 assembly view of a receptacle connector according to the present application;

FIG. 2 is a perspective assembly view of the receptacle connector of the present application at another angle;

fig. 3 is an exploded perspective view of a first terminal module and a second terminal module of the receptacle connector of the present application;

fig. 4 is an exploded perspective view of the first terminal module and the second terminal module at another angle of the receptacle connector of the present application;

fig. 5 is a combination diagram of a first terminal module and a second terminal module of the socket connector of the present application.

Description of the reference numerals

Metal shell-10; a cavity portion-11; a docking cavity-111; pressing the elastic sheet-112; a front positioning projection-113; a rear positioning fixture block-114; a cover portion-12; a top wall-121; a sidewall-122; a weld-123; a positioning slot-124; a first terminal module-20; a first insulator-21; a first base-211; positioning step-2111; a first hook-2112; hook-2113; undercut-2114; front locating slot-2115; a docking tongue-212; a first surface-2121; a second surface-2122; a terminal groove-2123; tail-213; a fastening groove-2131; sidewall-2132; a second card slot-2133; a limiting bump-2134; a tail wall-2135; a first terminal set-22; a second terminal set-32; contact-221,321; a holding portion-222, 322; a first fillet-223; a second fillet-323; a second terminal module-30; a second insulator-31; a second base-311; positioning the side-3111; a first card slot-3112; rear positioning groove-3113; a stopper-3114; a fixture block-3115; a fixing plate-312; a second hook-3121; hook-3122; a plate body-3123; protuberances-3124.

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 Z direction shown in fig. 1 is the upper direction (vertical direction), the X direction is the left-right direction (lateral direction), and the Y direction is the front-back direction (longitudinal direction).

Referring to fig. 1 and 2, the socket connector of the present application includes a first terminal set 22, a second terminal set 32, an insulating body holding the first terminal set 22 and the second terminal set 32 together, and a metal shell 10 covering the insulating body.

The insulating body includes a first insulator 21 integrally molding the first terminal group 22 and a second insulator 31 integrally molding the second terminal group 32. The dielectric body includes a base portion, a mating tongue 212 formed extending forwardly from the base portion.

The combination of the first terminal group 22 and the first insulator 21 constitutes a first terminal module 20, and the combination of the second terminal group 32 and the second insulator 31 constitutes a second terminal module 30.

The metal shell 10 includes a cavity 11 at a front end and a cover 12 extending rearward from the cavity 11. The cavity 11 comprises a butt joint cavity 111 which is through from front to back, a pressing elastic sheet 112 which is torn downwards from the upper surface of the cavity 11 and extends into the butt joint cavity 111, a front positioning bulge 113 which is formed by downwards pressing and sinking from the back side of the top surface of the cavity 11, and a rear positioning fixture block 114 which is formed by punching from the back end of the bottom surface of the cavity 11 to the butt joint cavity 111. The covering part 12 includes a top wall 121, side walls 122 extending downward from two lateral sides of the top wall 121, a welding part 123 extending downward from the side walls 122, and positioning slits 124 opened on the side walls 122 along the front-back direction.

The pressing elastic sheet 112 is used for applying a certain pressing force to a plug connector (not shown) inserted into the mating cavity 111, and the front positioning protrusion 113 is used for limiting the front positions of the first terminal module 20 and the second terminal module 30 and limiting the over-insertion of the plug connector. The soldering portion 123 pierces a printed circuit board (not shown) downward and is soldered to the printed circuit board.

As shown in fig. 3 to 5, the first terminal module 20 includes a first insulator 21 and a first terminal set 22 integrally formed in the first insulator 21.

The first insulator 21 includes a first base portion 211, a docking tongue portion 212 formed extending forward from the first base portion 211, and a tail portion 213 formed extending rearward from the first base portion 211. The first base part 211 comprises positioning steps 2111 which are recessed and opened at two lateral sides of the lower surface, a first hook 2112 is formed at the inner side of the positioning step 2111 and protrudes downwards on the first base part 211, and a hook portion 2113 is formed at the inner side of the free end of the first hook 2112 in the lateral direction. A front positioning groove 2115 is formed on the top surface of the first base 211 near the docking tongue 212. The docking tongue 212 includes a first surface 2121, a second surface 2122 opposite to the first surface 2121, and a plurality of terminal grooves 2123 formed on the second surface 2122 along the front-back direction. The first surface 2121 is an upper surface, the second surface 2122 is a lower surface, and the second surface 2122 is flush with the bottom surface of the first base 211. The tail portion 213 includes a fastening groove 2131 communicated with the lower surface of the first base portion 211, side walls 2132 and a tail wall 2135 formed by extending from the two lateral sides and the rear side of the tail portion 213 to the lower side, and a second locking groove 2133 formed in the inner side of the pair of side walls 2132. A pair of side walls 2132 are formed with limiting protrusions 2134 protruding laterally outward in the front-rear direction. The fastening groove 2131 is surrounded by the side wall 2132 and the tail wall 2135.

The first terminal set 22 includes a plurality of conductive terminals arranged in a row, each of the conductive terminals includes a contact portion 221 exposed on the first surface 2121 of the mating tongue 212, a holding portion 222 extending rearward from the contact portion 221 and wrapped in the first base portion 211 and the tail portion 213, and a first solder leg 223 bent downward from the rear end of the holding portion 222 and then bent rearward to form a first solder leg 223. The surface of the first solder leg 223 is attached to the surface of the printed circuit board by adopting patch type welding.

The second terminal module 30 includes a second insulator 31 and a second terminal group 32 formed in the second insulator 31.

The second insulator 32 includes a second base 311 engaged with the first base 211, and a fixing plate 312 formed to extend rearward from the second base 311. The second base 311 includes a positioning side portion 3111 protruding upwards from two lateral sides to form a locking part with the positioning step 2111, a first locking groove 3112 formed inside the pair of positioning side portions 3111 of the second base 311, and a rear positioning groove 3113 formed on two lateral sides of the bottom surface of the second base 311. The fixing plate 312 includes a plate 3123 and a pair of second hooks 3121 protruding upward from two lateral sides of the plate 3123. The free end of the second hook 3121 is provided with a hook 3122, and a plurality of protuberances 3124 are formed downward on the lower surface of the plate 3123. The fixing plate 312 is formed with stoppers 3114 protruding downward near both lateral sides of the second base 311.

The second terminal set 32 includes a plurality of conductive terminals, each of which includes a contact portion 321 protruding forward from the second base 311, a holding portion 322 held in the second insulator 31, and a second solder leg 323 bent downward from the rear end of the holding portion 322 and penetrating through the board 3123. The second solder leg 323 is of a pin-type structure, and is soldered after penetrating into a pin hole preset in the printed circuit board, and the second solder leg 323 is located on the front side of the first solder leg 223.

The second terminal module 30 and the first terminal module 20 are fastened together, specifically, the second base 311 of the second insulator 31 is fastened together with the first base 211 of the first insulator 21, the positioning side portion 3111 is fastened to the positioning step 2111, and the first hook 2112 is fastened to the first slot 3112; the fixing plate 312 is received in the locking groove 2131 of the first insulator 21, and the second hook 3122 of the second insulator 31 is locked in the second locking groove 2133 of the first insulator 21. A recessed groove 2114 is formed at the rear side of the first base portion 211 of the first insulator 21 in a recessed manner, a latch 3115 is formed at the rear side of the second base portion 31 of the second insulator 31 in a protruding manner at a position corresponding to the recessed groove 2114, and the latch 3115 is snapped into the recessed groove 2114 to limit and fix the position of the first insulator 21 and the second insulator 31 relative to each other. The fixing plate 312 is fixed to the locking groove 2131 so as not to be movable in the front-rear-left-right direction. The first hooks 2112 and the first slots 3112, and the second hooks 3122 and the second slots 2133 are engaged with each other, so as to keep the positions of the first insulator 21 and the second insulator 31 fixed in the vertical direction.

The second terminal set 32 is sunk forward into the terminal groove 2123 in the second surface 2122 of the abutting tongue 212 of the first insulator 21, and the front end edge of the second terminal set 32 abuts against and is blocked by the front end of the terminal groove 2123. The first base portion 211 of the first insulator 21 and the second base portion 311 of the second insulator 31 are combined to form a base portion.

The assembled combination of the first terminal module 20 and the second terminal module 30 is inserted into the metal shell 10 from the back to the front, wherein the base portion formed by the docking tongue 212, the first insulator 21 and the second insulator 31 is inserted into the docking cavity 111, the base portion is wrapped and limited at the back end of the docking cavity 111, and the front positioning groove 2115 at the front end of the upper surface of the first base portion 211 of the first insulator 21 abuts against the front positioning protrusion 113 of the metal shell 10. The lower side of the rear end of the cavity 11 of the metal shell 10 is bent to form a rear positioning block 114 that is inserted into the rear positioning groove 3113 to limit the position of the combination of the first terminal module 20 and the second terminal module 30 in the metal shell 10, and the tail portion 213 and the fixing plate 312 are covered in the covering portion 12. The stopper 3114 is positioned at a rear side of the rear fixture block 114 to limit previous over-insertion of the combination.

The board body 3123 of the fixing plate 312 fixes a plurality of second soldering terminals 323 of the contact pins, and the protruding portion 3124 protrudes from the board body 3123 and wraps the root portions of the second soldering terminals 323, so that a terminal fixing plate does not need to be separately provided, and a terminal fixing plate does not need to be separately installed.

According to the socket connector, the first terminal set 22 and the second terminal set 32 are separately injection-molded to form the first insulator 21 and the second insulator 31, the fixing plates 3123 for fixing the pin-type second solder feet 323 are formed at the rear end of the second insulator 31, and the second insulator 31 and the first insulator 21 are fixed in the metal shell 10 after being fixed with each other.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only show the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A socket connector comprises a first terminal set, a second terminal set, an insulating body for fixing the first terminal set and the second terminal set into a whole, and a metal shell sleeved outside the insulating body, wherein the insulating body comprises a first insulator for forming the first terminal set and a second insulator for forming the second terminal set, each conductive terminal of the first terminal set and the second terminal set comprises a contact part exposed on the upper surface and the lower surface of the insulating body respectively, a fixing part extending backwards from the contact part and wrapping the insulating body, and a first welding pin and a second welding pin extending out of the insulating body from the fixing part, the first welding pin extends out of the rear side of the first insulator, and the second welding pin is formed by bending downwards and vertically from the tail end of the fixing part, and is characterized in that the second welding pin is of a pin type structure, the second insulator comprises a fixing plate for forming and fixing a plurality of second welding feet, and the first insulator and the second insulator are fixed together.

2. The socket connector according to claim 1, wherein the fixing plate of the second insulator includes a plate body and a plurality of protrusions formed to protrude downward from the plate body, each protrusion corresponding to one of the second solder fillets and wrapping at least a portion of the second solder fillet.

3. The receptacle connector of claim 1, wherein the first insulator includes a first base portion, a mating tongue portion formed to extend forward from the first base portion, and a tail portion formed to extend rearward from the first base portion, the second insulator includes a second base portion formed to mate with the first base portion to form the base portion, and the securing plate extending rearward from the second base portion to form the mating tail portion, and contact portions of the first terminal group and the second terminal group are exposed to upper and lower surfaces of the mating tongue portion, respectively.

4. The socket connector of claim 3, wherein the lateral outer side of the lower surface of the first base is recessed upward to form a positioning step, the lower surface of the first base is located inside the positioning step and protrudes downward to form a first hook, the lateral sides of the second base are protruded upward to form a positioning side portion fastened to the positioning step and a first engaging groove formed through the inner side of the positioning step, and the first hook is fastened in the first engaging groove.

5. The socket connector of claim 4, wherein the lateral sides and the rear side of the tail portion are protruded downward to form a side wall and a tail wall, the side wall and the tail wall are enclosed to form a fastening slot, and the fixing plate is fastened in the fastening slot.

6. The socket connector of claim 5, wherein a second slot is formed through the inner sides of the pair of side walls of the tail portion, and second hooks are formed on two lateral sides of the fixing plate in an upward protruding manner to be locked in the second slot.

7. The socket connector according to claim 5 or 6, wherein the first base portion has a bottom surface recessed upward on a side thereof adjacent to the tail portion to form a recessed groove, and the second base portion has an upper rear end projecting upward to form a latch for latching into the recessed groove.

8. The socket connector of claim 7, wherein the metal shell includes a cavity at a front end and a covering portion extending rearward from the cavity, the cavity includes a front and a rear through mating cavities, a front positioning protrusion formed by pressing downward a rear side of a top surface of the cavity, and a rear positioning block formed by pressing downward a rear end of a bottom surface of the cavity, the covering portion includes a top wall, side walls extending downward from two lateral sides of the top wall, a welding portion extending downward from the side walls, and positioning slits formed in the side walls in a front and rear direction.

9. The socket connector according to claim 8, wherein a front positioning groove is formed at a side of the front end of the first base of the first insulator, which is close to the mating tongue portion, a rear positioning groove is formed at a side of the bottom surface of the second base of the second insulator, which is close to the fixing plate, which is recessed upward, the front positioning protrusion abuts against the front positioning groove, the rear positioning latching piece is bent and snapped into the rear positioning groove, a stopper is formed at a rear end of the rear positioning groove, which protrudes downward, and the stopper abuts against a rear end edge of the cavity portion.

10. The receptacle connector according to claim 8, wherein a limiting projection is formed by projecting the lateral outer side of the side wall of the first insulator in the front-rear direction, and the limiting projection is caught in the positioning slit.