TWI651900B - Electrical connector - Google Patents

Abstract

An electrical connector includes an insulating body, metal parts, and two rows of terminals held on the insulating body. Each terminal in the two rows of terminals includes a butt joint, a welding part, and a connection connecting the butt joint and the welding part. And each row of terminals includes a ground terminal on the outside, the metal piece is provided with a side edge on the outside of the ground terminal and a ground portion provided on the side edge, and the ground terminal is provided with a connection therefrom The overlap portion extends laterally to contact the ground portion.

Description

Electric connector

The present invention relates to an electrical connector, and in particular, to an electrical connector that can be plugged in both directions.

For related related technologies, please refer to an electrical connector disclosed in Chinese Mainland Utility Model No. 203859328. The electrical connector includes: an insulating body including a base and a base extending forward from the base. A tongue plate, the tongue plate having a first butt surface and a second butt surface opposite to each other and forming at least a first groove portion; a first group of conductive terminals fixed to the insulating body and partially exposed on The first docking surface includes at least one first ground terminal corresponding to the first groove portion; a second group of conductive terminals fixed to the insulating body and partially exposed on the second docking surface; A ground metal sheet includes a main body disposed between the first group of conductive terminals and the second group of conductive terminals, and at least a first ground spring arm extending from the main body toward the first abutting surface; the A first ground spring arm passes through the first groove portion and elastically abuts against the first ground terminal; both side edges of the ground metal sheet are exposed at least partially on both sides of the tongue plate; and an outer Shield case fixed to said Edge of the body, and a mating cavity formed around the outside space of the tongue plate. Please refer to Chinese Mainland Utility Model No. 204304093 patent discloses an electrical connector, which includes an insulating body, a plurality of conductive terminals inserted into the insulating body, and a metal shell sleeved on the insulating body. The metal shell is One-piece seamless molding structure, using stretch molding, profile cutting, metal die casting, powder metallurgy or liquid metal molding.

However, in the conventional technology, the electrical connector is in contact with the first ground terminal through the first ground spring arm provided on the ground metal sheet, but this contact method is very likely to cause a poor contact situation. The shell is integrally formed, but after welding to the circuit board, the welding strength of the metal shell cannot be guaranteed and the electrical connector is easily turned over.

Therefore, there is a need for an improved electrical connector to remedy the aforementioned shortcomings in the prior art.

The main purpose of the present invention is to provide an electrical connector, which can ensure a stable contact yield between a metal piece and a ground terminal, and a degree of soldering and correctness of a metal shell welded to a circuit board.

The purpose of the present invention is achieved by the following technical solution: An electrical connector includes an insulating body, metal parts, and two rows of terminals held on the insulating body, and each of the two rows of terminals includes a mating portion, A welding portion and a connecting portion connecting the butting portion and the welding portion, and each row of terminals includes a ground terminal located on the outside, the metal piece is provided with a side edge located outside the ground terminal and is provided on the side edge The ground terminal is provided with an overlapped portion that extends laterally from its connecting portion to contact the ground portion.

Further, the two rows of terminals include an upper row of terminals and a lower row of terminals, and the grounding portion includes a first grounding portion provided on an upper surface of the side edge and a second grounding portion provided on a lower surface thereof. The overlapping portion is hook-shaped and has a free end thereon. The overlapping portion of the ground terminal of the upper row of terminals surrounds the first ground portion laterally so that the free end thereof overlaps the lower row of terminals. The lower surface of the ground terminal, and the overlapping portion of the ground terminal of the lower row terminal surrounds the second ground portion laterally so that the free end thereof overlaps the lower surface of the ground terminal of the upper row terminal.

Further, each of the two rows of terminals further includes an embedded portion at a front end of the abutting portion, and the embedded portion of the ground terminal is bent at the front end to form a contact portion in contact with the metal part.

Further, the insulating body includes an upper end seat, a lower end seat, and a plastic piece, and the upper end seat includes a first base portion and a first tongue plate spaced from the first base portion to form a first vacant portion to fill the plastic piece, The lower end seat includes a second base portion and a second tongue plate spaced from the second base portion to form a second vacant portion to fill a plastic part, and the overlap portion is located in the first vacant portion and the second vacant portion and It is held by the plastic part.

Further, the electrical connector further includes a rubber plate, the insulating body is provided with a plurality of through holes, the metal piece includes a main board portion, and the main plate portion is provided with a glue filling hole, and glue is provided at the rear end of the insulating body During filling, the glue is poured through the through opening and the glue filling hole to form the glue board.

Further, the electrical connector further includes a metal shell and a rear iron shell. The rear iron shell is provided with a stepped flat plate portion and an abutting portion, and the rear iron shell is sleeved on the rear of the rubber plate. A side surface so that the flat plate portion covers the rubber plate, and the abutting portion abuts the metal shell.

Further, the electrical connector further includes a metal shell provided separately from the metal part, wherein the metal shell is metal powder injection molding, and the metal part is metal powder injection molding or metal sheet stamping.

Further, the electrical connector is mounted on a circuit board, the metal shell includes a main body portion and a holding leg extending from the main body portion, the metal piece includes a welding leg, and the holding leg and the welding leg are perforated and welded, respectively. To the circuit board.

Further, the metal shell includes a reinforcing rib, and the reinforcing rib extends from the main body portion to the holding leg to enhance the welding strength of the holding leg to the circuit board.

Further, the metal shell includes a reinforcing foot, the reinforcing foot is located in front of the holding foot, and when the holding foot is soldered to the circuit board, the reinforcing foot is abutted against a surface of the circuit board.

Compared with the conventional technology, the present invention has the following effects: the metal shell of the electrical connector of the present invention is metal powder injection molding, which can ensure the strength of the metal shell. The metal shell is provided with reinforcing ribs and reinforcing feet to enhance the welding strength and prevent the electrical connector from turning. The electrical connector laterally extends from the first connection portion of the first ground terminal to form a first overlapping portion in the shape of a hook and the second connection portion of the second ground terminal extends laterally to form a second connection in the shape of a hook. A first grounding portion and a second grounding portion are provided on the metal piece, the first overlapping portion surrounds and contacts the outer surface of the first grounding portion laterally, and the second overlapping portion It surrounds the outer surface of the second grounding portion laterally and makes contact with it. In the present invention, the first overlapping portion and the second overlapping portion are provided on both sides of the first grounding terminal and the second grounding terminal and can be directly connected to the metal. Avoid contact with parts due to the impact of plastic to prevent contact yield. The metal part is provided with a pair of soldering pins which are perforated and welded to the circuit board, thereby increasing the reliability of the grasping plate of the electrical connector and the stability of insertion and removal. The rear iron shell is arranged in a step shape to reduce the space occupied by the product. The insulation body is provided with a plurality of through-holes and metal parts are provided with glue-filling holes, which can ensure that the fluidity of the glue when plastic is high-level waterproof.

100‧‧‧electrical connector

1‧‧‧Insulated body

11‧‧‧ base

12‧‧‧ tongue plate

13‧‧‧ Upper end seat

131‧‧‧First base

1310‧‧‧First plate

132‧‧‧First vacancy

133‧‧‧The first tongue plate

14‧‧‧ lower end seat

141‧‧‧Second Base

1410‧‧‧Second Plate

142‧‧‧Second Vacancy Section

143‧‧‧Second tongue plate

15‧‧‧plastic parts

151‧‧‧third base

152‧‧‧Third tongue plate

2‧‧‧Two rows of terminals

21‧‧‧Upper row terminal

211‧‧‧First ground terminal

212‧‧‧First conductive terminal

213‧‧‧First Immersion Department

2130‧‧‧First contact

214‧‧‧The first welding department

215‧‧‧First connection section

2150‧‧‧First overlap

2151‧‧‧First free end

216‧‧‧The first docking department

22‧‧‧ Lower row terminal

221‧‧‧Second ground terminal

222‧‧‧Second conductive terminal

223‧‧‧Second Embedded Department

2230‧‧‧Second contact section

224‧‧‧Second welding section

225‧‧‧Second connection section

2250‧‧‧Second Overlap

2251‧‧‧Second Free End

226‧‧‧Second Docking Department

3‧‧‧ metal parts

31‧‧‧Motherboard Department

311‧‧‧fill hole

32‧‧‧ support

320‧‧‧side edge

321‧‧‧first ground

322‧‧‧Second Grounding Section

323‧‧‧Covered

33‧‧‧Welding feet

4‧‧‧ metal case

40‧‧‧Main body

41‧‧‧ Plug-in space

42‧‧‧ Opposition film

43‧‧‧ holding feet

44‧‧‧ rib

45‧‧‧ Strengthen your feet

5‧‧‧ rubber sheet

51‧‧‧First through port

52‧‧‧Second through opening

53‧‧‧Third through

6‧‧‧ rear iron shell

61‧‧‧ Flat Department

62‧‧‧Abutment Department

200‧‧‧Circuit Board

The first figure is a three-dimensional assembled view of the electrical connector of the present invention mounted on a circuit board.

The second figure is a three-dimensional combined view of the first figure viewed from another direction.

The third figure is a partially exploded view of the electrical connector of the present invention.

The fourth diagram is a partially exploded view of the third diagram viewed from another direction.

The fifth figure is an exploded perspective view of the electrical connector of the present invention with the metal shell and the rear shell removed.

The sixth figure is an exploded perspective view of the fifth figure viewed from another direction.

The seventh figure is a perspective view of the upper row of terminals, metal parts, and the lower row of terminals.

The eighth figure is a perspective view of the seventh figure viewed from another direction.

The ninth figure is a three-dimensional assembled view of the upper row of terminals, metal parts, and the lower row of terminals.

The tenth figure is a three-dimensional combined view of the ninth figure viewed from another direction.

The eleventh figure is a three-dimensional assembled view of the iron shell and the rubber plate after the electrical connector of the present invention is removed.

The twelfth figure is a three-dimensional combined view of the eleventh figure viewed from another direction.

The thirteenth figure is a sectional view of the first figure from the direction of XIII-XIII.

The fourteenth figure is a cross-sectional view of the first figure from the XIV-XIV direction

Hereinafter, specific embodiments of the electrical connector 100 of the present invention will be described with reference to the first to fourteenth drawings. The directions involved in this specification all refer to the first figure, and define the insertion opening of the insertion space 41 as the front end.

Referring to the first to tenth figures, the present invention provides an electrical connector 100 mounted on a circuit board 200. In this embodiment, the electrical connector 100 is of a sinker type, the circuit board 200 is provided with a receiving slot (not labeled), and the electrical connector 100 is suspended in the receiving slot. The electrical connector 100 includes an insulating body 1, two rows of terminals fixed in the insulating body 1, metal pieces 3 fixed between the two rows of terminals 2, and a metal shell 4 sheathed outside the insulating body 1. The rubber sheet 5 at the rear end of the insulating body 1 is sealed and the rear iron shell 6 is shielded at the rear end of the rubber sheet 5.

Referring to the third to tenth figures, the insulating body 1 has a base portion 11 and a tongue plate 12 extending forward from the base portion 11. The insulating body 1 includes an upper end seat 13, a lower end seat 14, and a plastic member 15. The upper end seat 13 includes a first base portion 131 and a first tongue plate 133 separated from the first base portion 131 to form a first vacant portion 132 to fill the plastic part 15. The first base portion 131 is provided with a first plate-like portion 1310. The lower end seat 14 includes a second base portion 141 and a second tongue plate 143 separated from the second base portion 141 to form a second vacant portion 142 to fill the plastic part 15. The second base portion 141 is provided with a second plate-like portion 1410. The plastic part 15 includes a third base portion 151 and a third tongue plate 152 connected to the third base portion 151. The first base portion 131, the second base portion 141, and the third base portion 151 collectively form the base portion 11. The first tongue plate 133, the second tongue plate 143 and the third tongue plate 152 together form the tongue plate 12.

The two rows of terminals 2 include an upper row of terminals 21 fixed to the upper end seat 13 and a lower row of terminals 22 fixed to the lower end seat 14. The number of the upper-row terminals 21 and the number of the lower-row terminals 22 are the same. The arrangement order of the upper row of terminals 21 and the lower row of terminals 22 is reversed, so that the electrical connector 100 supports forward and reverse mating with a mating connector (not shown).

The upper row of terminals 21 includes a first ground terminal 211 located outside and a first conductive terminal 212 located inside the first ground terminal 211. The first ground terminal 211 has two and is disposed on both sides of the first conductive terminal 212. Each terminal in each upper row of terminals 21 includes a first butting portion 216 provided at a front end thereof, a first welding portion 214 provided at a tail end, and a first connection connecting the first butting portion 216 and the first welding portion 214 The portion 215 and the first embedded portion 213 located at the front end of the first abutting portion 216. The first embedded portion 213 of the first ground terminal 211 is bent in a reverse direction on the lower side of the front end to form a first contact portion 2130. The first ground terminal 211 is provided with a hook-shaped first overlapping portion 2150 extending laterally from the first connecting portion 215, and the first overlapping portion 2150 is provided with a first free end 2151.

The lower row of terminals 22 includes a second ground terminal 221 on the outside and a second conductive terminal 222 on the inside of the second ground terminal 221. The second ground terminal 221 has two and is disposed on both sides of the second conductive terminal 222. Each terminal in each lower row of terminals 22 includes a second mating portion 226 provided at a front end thereof, a second soldering portion 224 provided at a tail end, and a second connection connecting the second mating portion 226 and the second soldering portion 224 The portion 225 and the second embedded portion 223 located at the front end of the second abutting portion 226. The second embedded portion 223 of the second ground terminal 221 is bent in the opposite direction on the upper side of the front end to form a second contact portion 2230. The second ground terminal 221 is provided with a second overlapping portion 2250 in a hook shape extending laterally from the second connecting portion 225, and the second overlapping portion 2250 is provided with a second free end 2251.

The metal part 3 is a metal sheet stamping or metal powder injection molding and includes a pair of main plate portions 31, a support portion 32, and a welding leg 33 which are vertically arranged. The support portion 32 is flat and is provided with a side edge 320. The side edge 320 is provided with a first grounding portion 321 on the upper surface and a second grounding portion on the lower surface. 322. The main board portion 31 is located on both sides of the support portion 32 and an upper portion of a rear surface thereof is provided with a glue filling hole 311 which does not penetrate the main board portion 31. Covering portions 323 are formed on both sides of the front end of the supporting portion 32 to extend upward and downward.

The metal shell 4 is separated from the metal piece 3. The metal shell 4 is injection-molded of metal powder and includes a main body portion 40, a plug-in space 41 formed in the main body portion 40, a resisting piece 42 provided behind the main body portion 40, and a lateral extension from the main body portion 40. A pair of retaining legs 43, a triangular-shaped reinforcing rib 44 extending from the main body portion 40 to the retaining leg 43, and a reinforcing leg 45 located in front of the retaining leg 43.

The rear iron shell 6 is provided with a stepped flat plate portion 61 and an abutting portion 62.

During manufacturing, the upper row of terminals 21 are injection molded into the upper end seat 13, the lower row of terminals 22 are injection molded into the lower end seat 14, and the first mating portion 216 of the upper row of terminals 21 is exposed at the first An upper surface of a tongue plate 133, the first embedded portion 213 is embedded in the upper end seat 13, the lower surface of the first contact portion 2130 is exposed on the lower surface of the upper end seat 13, and the first connection portion 215 A part and the first overlapping portion 2150 are exposed on the first vacant portion 132, and the first welding portion 214 extends out of the upper end seat 13. The second mating portion 226 of the lower row terminal 22 is exposed on the lower surface of the second tongue plate 143, the second embedded portion 223 is embedded in the lower end seat 14, and the upper surface of the second contact portion 2230 is exposed on On the upper surface of the lower end seat 14, a portion of the second connecting portion 225 and a second overlapping portion 2250 are exposed from the second vacant portion 142, and the second welding portion 224 extends out of the lower end seat 14.

Referring to the thirteenth to fourteenth figures, the upper end seat 13 and the lower end seat 14 are injection-molded on the upper and lower sides of the support portion 32 of the metal piece 3, respectively. The first plate-shaped portion 1310 of the first base portion 131 and the second plate-shaped portion 1410 of the second base portion 141 are respectively coupled to the main plate portion 31 of the metal member 3 in the vertical direction. The covering part 323 of the metal piece 3 surrounds both front ends of the first tongue plate 133 of the upper end seat 13 and the second tongue plate 143 of the lower end seat 14 on the outside. The first vacant portion 132 and the second vacant portion 142 give way to the first ground portion 321 and the second ground portion 322, respectively. The first contact portion 2130 exposed on the lower surface of the upper end seat 13 is in contact with the upper surface of the metal piece 3, and the second contact portion 2230 exposed on the upper surface of the lower end seat 14 and the lower surface of the metal piece 3 contact. The side edge 320 is located at the first ground terminal Outside of the sub-211 and the second ground terminal 221, the first overlapping portion 2150 is in contact with the first ground portion 321 of the metal piece 3 and surrounds the outer surface of the first ground portion 321 laterally so that the The first free end 2151 overlaps the lower surface of the second connection portion 225 of the second ground terminal 221, and the second overlap portion 2250 is in contact with the second ground portion 322 of the metal piece 3 and surrounds the side An outer surface of the second ground portion 322 causes the second free end 2251 to overlap the lower surface of the first connection portion 215 of the first ground terminal 211.

Please refer to the eleventh to twelfth figures, the upper end seat 13, the metal part 3, and the lower end seat 14 after injection molding are over-injected to form the insulating body 1, and the first overlapping portion 2150. The second overlapping portion 2250 is located in the first vacant portion 132 and the second vacant portion 142 and is held by the plastic member 15. A first through opening 51, a second through opening 52, and a third through opening 53 are formed at the rear end portion of the insulating body 1 after the second injection molding.

The insulating body 1 is provided in the metal case 4, and the main plate portion 31 is abutted against the back of the resisting piece 42, so that the main plate portion 31, the first base portion 131, and the second base portion 141 are located in all places. The inserting space 41 behind the resisting piece 42 is described.

The rear end of the insulating body 1 is filled with glue, and the glue passes through the first through opening 51, the second through opening 52, the third through opening 53, and the glue filling hole 311 to fill the glue evenly to form the rubber plate 5.

The rear iron shell 6 is sleeved on the rear surface of the rubber plate 5 so that the flat plate portion 61 covers the rubber plate 5, and the abutting portion 62 abuts the metal shell 4.

The electrical connector 100 is mounted on the circuit board 200. At this time, the holding leg 43 of the metal shell 4 is perforated and welded to the circuit board 200, and the welding leg 33 of the metal part 3 is perforated and welded to the circuit board 200. On the surface of the circuit board 200, the reinforcing ribs 44 can enhance the welding strength of the holding feet 43 to the circuit board 200 and the reinforcing feet 45 abut against the upper surface of the circuit board 200 to prevent the electrical connector 100 from turning over.

The electrical connector of the present invention has the following effects: The metal shell 4 of the electrical connector 100 of the present invention is injection molded with metal powder to ensure the strength of the metal shell 4. Metal shell 4 is provided with reinforcing ribs 44 and reinforcing feet 45 It can enhance the welding strength and prevent the electrical connector 100 from turning over. The electrical connector 100 is provided on the first ground terminal 211 with a hook-shaped first overlapping portion 2150 extending laterally from the first connection portion 215 thereof, and the second ground terminal 221 is provided with a The second connecting portion 225 is a hook-shaped second overlapping portion 2250 extending laterally. The metal piece 3 is provided with a first grounding portion 321 and a second grounding portion 322. The second grounding portion 2250 surrounds and contacts the outer surface of the first grounding portion 321 laterally, and the second overlapping portion 2250 surrounds and contacts the outer surface of the second grounding portion 322 laterally to improve the electrical connector 100. The purpose of high-frequency performance and stability of molding. In the present invention, the first overlapped portion 2150 and the second overlapped portion 2250 are provided on both sides of the first ground terminal 211 and the second ground terminal 221 and can directly contact the metal piece 3 to prevent the contact yield from being hindered by the influence of plastic. . The upper end seat 13 includes a first base portion 131 and a first tongue plate 133 separated from the first base portion 131 to form a first vacant portion 132. The lower end seat 14 includes a second base portion 141 and a second base portion 141. A second tongue plate 143 forming a second vacant portion 142 is separately provided at 141, and the first vacant portion 132 and the second vacant portion 142 give way to the first grounding portion 321 and the second grounding portion 322, respectively, to ensure Contact yield. The metal piece 3 is provided with a pair of soldering pins 33 through-hole welding to the circuit board 200 so as to increase the reliability of the grasping plate of the electrical connector 100 and the stability of insertion and removal. The rear iron shell 6 is arranged in a step shape to reduce the space occupied by the electrical connector 100. The insulating body 1 is provided with a first through-opening 51, a second through-opening 52, a third through-opening 53 and a metal filling hole 3 with a glue filling hole 311, which can ensure that the fluidity of the glue when plastic is high-level waterproof.

In summary, the present invention complies with the elements of an invention patent, and a patent application is filed in accordance with the law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments. Anyone who is familiar with the technology of the present case with equivalent modifications or changes made in accordance with the spirit of the present invention should apply it. Covered in the following patent applications.

Claims (9)

An electrical connector includes an insulating body, metal parts, and two rows of terminals held on the insulating body. Each terminal in the two rows of terminals includes a butt joint, a welding part, and a connection connecting the butt joint and the welding part. And each row of terminals includes a ground terminal located on the outside, characterized in that the metal piece is provided with a side edge located on the outside of the ground terminal and a ground portion provided on the side edge, and the ground terminal is provided There is an overlapped portion extending laterally from its connecting portion to contact the grounding portion. The two rows of terminals include an upper row of terminals and a lower row of terminals. The grounding portion includes a first portion provided on an upper surface of the side edge. A grounding portion and a second grounding portion provided on a lower surface thereof, the overlapping portion is hook-shaped and a free end is provided thereon, and the overlapping portion of the ground terminal of the upper row of terminals surrounds the first side The free end of the ground terminal is overlapped with the lower surface of the ground terminal of the lower row terminal, and the overlap portion of the ground terminal of the lower row terminal surrounds the second ground section laterally so that the free end thereof overlaps A ground terminal connected to the upper row of terminals lower surface. The electrical connector according to item 1 of the scope of patent application, wherein each of the two rows of terminals further includes an embedded portion at the front end of the mating portion, and the embedded portion of the ground terminal is formed by bending the front end in the opposite direction. A contact portion in contact with the metal piece. The electrical connector according to item 1 of the scope of patent application, wherein the insulating body includes an upper end seat, a lower end seat, and a plastic part, and the upper end seat includes a first base portion and a first gap is formed to be spaced apart from the first base portion. The lower end seat includes a second base plate and a second base plate spaced apart from the second base portion to form a second vacant portion to fill the plastic piece, and the overlapping portion is located at The first vacant portion and the second vacant portion are held by the plastic part. The electrical connector according to item 1 of the scope of patent application, wherein the electrical connector further includes a rubber plate, the insulating body is provided with a plurality of through holes, the metal piece includes a main board portion, and the main plate portion is provided with a pouring The glue hole is filled with glue at the rear end of the insulating body, and the glue passes through the through hole and the glue hole to fill the glue to form the glue plate. The electrical connector according to item 4 of the scope of patent application, wherein the electrical connector further includes a metal shell and a rear iron shell, the rear iron shell is provided with a stepped flat plate portion and an abutting portion, and the rear An iron shell is sleeved on the rear surface of the rubber plate so that the flat plate portion covers the rubber plate, and the abutting portion abuts the metal shell. The electrical connector according to item 1 of the scope of patent application, wherein the electrical connector further includes a metal shell provided separately from the metal part, wherein the metal shell is a metal powder injection molding, and the metal part is a metal powder Injection molding or sheet metal stamping. The electrical connector according to item 6 of the scope of patent application, wherein the electrical connector is mounted on a circuit board, the metal shell includes a main body portion and a holding leg extending from the main body portion, and the metal piece includes a soldering leg The holding leg and the soldering leg are respectively through-hole soldered to the circuit board. The electrical connector according to item 7 of the scope of patent application, wherein the metal shell includes a reinforcing rib that extends from the main body portion to the holding leg to enhance soldering of the holding leg to the circuit board strength. The electrical connector according to item 7 of the scope of patent application, wherein the metal shell includes reinforcing feet, the reinforcing feet are located in front of the holding feet, and the reinforcing feet are reinforced when the holding feet are soldered to the circuit board. Feet abut against the surface of the circuit board.