TWI635657B - Electrical connector and assembly of the same - Google Patents

Abstract

An electrical connector combination includes a mating electrical connector and a circuit board. The electrical connector includes an insulating member having an insulating body, first and second rows of conductive terminals fixed on the insulating body, and fixed on the A metal part of an insulating member and a shielding shell covering the insulating body to form a receiving space, the insulating body includes a base and a tongue plate extending forward from the base, the first row and the second row The conductive terminal is provided with a contact portion exposed on the tongue plate and an elastic portion extending backward from the rear end of the base, characterized in that: the metal piece is provided with a first elastic arm and a second elastic arm extending rearward, so The first elastic arm and the elastic portion of the first row of conductive terminals, together with the second elastic arm and the elastic portion of the second row of conductive terminals, elastically clamp the circuit board. The connector has a good electromagnetic shielding effect and is easy to disassemble and install.

Description

Electric connector and combination thereof

The invention relates to an electrical connector, in particular to a connection structure in which an electrical connector and a circuit board are easily installed and removed.

China Mainland Patent Publication No. CN105322349A discloses an electrical connector, which includes an insulating body, a conductive terminal and a metal member held in the insulating body. The insulating body includes a first insulating body and a holding portion with the first insulating body. The second insulating body, the conductive terminal includes an upper row of signal terminals and a lower row of signal terminals, the upper row of signal terminals and the lower row of signal terminals are fixed in a first insulation body and are respectively formed to expose the first insulation The metal part is embedded in the contact part of the main body for mating with the butt connector. The metal part is buried in the first insulating main body and is located between the upper row signal terminal and the lower row signal terminal. An insulating body and a second insulating body are respectively formed by two injection moldings, and the second insulating body is surrounded and fixed on the periphery of the rear end of the first insulating body holding the conductive terminals by injection molding. The tails of the terminals of this electrical connector are surface-welded to the circuit board. On the one hand, because the tail of the terminal extends rearwardly from the first insulator level, this tail design is not flexible, so it is easy to suffer from the coplanarity tolerance of the terminal tail when soldering the electrical connector to the circuit board. Influence, resulting in some terminals can not be soldered to the circuit board and lead to empty soldering. On the other hand, the high temperature during soldering is likely to adversely affect the electrical performance of the electrical connector, and cracking of the solder will cause poor electrical connection. In addition, when such an electrical connector is soldered to a circuit board as a whole and applied to a device such as a mobile phone, if the electrical connector is to be replaced, the circuit board and the electrical connector can only be replaced together.

Chinese mainland utility model patent No. CN203983548U discloses an electrical connector, which includes an insulating body, which includes a base, a tongue plate extending forward from the base, and two sides of the base extending backward. Two side walls, the tongue plate has a first butt surface and a second butt surface opposite to each other; a set of first row of conductive terminals, the first row of conductive terminals includes a fixing portion fixed on the base A plate-shaped extension arm extending forward from the fixing portion to the tongue plate and an elastic extension arm protruding from the base rearwardly from the fixing portion; the plate-shaped extension arm is exposed on the first abutting surface of the tongue plate The elastic extension arm is accommodated between the two side walls; a set of second-row conductive terminals, the second-row conductive terminals include a fixing part fixed on the base, and the fixing part extends forward to the A plate-shaped extension arm of the tongue plate and an elastic extension arm protruding rearwardly of the base from the fixing portion, the plate-shaped extension arm is exposed on the second abutting surface of the tongue plate, and the elastic extension arm is received in the two Between the side walls, where the first row of conductive terminals in the group An insertion space is formed between the flexible extension arm and the elastic extension arm of the second row of conductive terminals of the group; a ground metal piece is disposed in the tongue plate and is spaced apart from the first row of conductive terminals of the group and the second group of conductive terminals A row of conductive terminals; and an outer cover shell fixed on the insulating body, the outer cover shell surrounding the peripheral space of the tongue plate to form a first docking cavity, and covering the two side walls to form a Second docking cavity. The terminals of this electrical connector are electrically connected to the electrical contact pieces on the circuit board through the elastic bonding of the elastic extension arm. Although this elastic bonding method can prevent the occurrence of air soldering, but the terminals are directly Elastic contact with the circuit board, the electromagnetic shielding effect is not good, and terminal contact failure may occur.

Therefore, it is really necessary to provide a new electrical connector and an electrical connector combination to overcome the above defects.

An object of the present invention is to provide an electrical connector and an electrical connector combination, which can ensure the electromagnetic shielding effect of the electrical connector, can be accurately fixed to a circuit board, and is easy to install and remove.

The object of the present invention is achieved by the following technical solution 1: an electrical connector that cooperates with a circuit board, the electrical connector includes an insulating member with an insulating body, and a first row and a second row held on the insulating body A conductive terminal, a metal piece fixed on the insulating member, and a shielding case covering the insulating body to form a receiving space, the insulating body includes a base and a tongue plate extending forward from the base, the The first and second rows of conductive terminals are provided with a contact portion exposed on the tongue plate and an elastic portion extending rearwardly from the rear end of the base. The metal part is provided with a first elastic arm and a second elastic arm extending backward, and the first elastic arm and the elastic portion of the first row of conductive terminals are elastic together with the second elastic arm and the elastic portion of the second row of conductive terminals. Hold the circuit board.

Further, the insulating member includes an insulating housing fixed at a rear end of the insulating body and provided with a receiving groove, the receiving groove accommodating the elastic portions of the first and second rows of conductive terminals and inserting the circuit board.

Further, the metal piece is an intermediate shielding sheet fixed to the insulating body and located between the first row and the second row of conductive terminals, and the insulating case is provided with a plurality of gaps penetrating the receiving grooves, The first elastic arms are provided as a pair and correspond to the notches and are located on both sides of the first row of conductive terminals, and the second elastic arms are provided as one and correspond to the notches and are located on the second row of conductive The middle of the terminal.

Further, the insulating case is provided with a plurality of opening grooves penetrating the receiving groove, and the metal piece is a metal cover sleeved on the insulating piece and received in the receiving space. Two elastic arms are disposed on the inner wall surface of the metal cover and correspond to the opening groove.

Further, the insulating housing further includes a plurality of partition ribs on a bottom surface, and the elastic portion of the conductive terminal is maintained in a gap formed between the partition ribs.

Further, a sleeve portion including a first annular portion and a second annular portion is provided at the rear end of the base, and the insulating case is sleeved on the second annular portion, and the first annular portion It is sleeved on the base so that the periphery of the base, the periphery of the first annular part and the periphery of the metal cover are smoothly connected, and the surface of the metal cover is provided with a plurality of resisting elastic pieces for resisting the inside of the shielding shell wall.

The object of the present invention is achieved by the following technical solution 2: An electrical connector combination includes an electrical connector and a circuit board that cooperate with each other. The electrical connector includes an insulating member having an insulating body, and an electrical connector fixed on the insulating body. The first and second rows of conductive terminals, metal parts held on the insulating member, and a shielding case covering the insulating body to form a receiving space, the insulating body includes a base and forward from the base. An extended tongue plate, the conductive terminal is provided with a contact portion exposed on the tongue plate and an elastic portion extending rearwardly from the rear end of the base, and the metal piece is provided with a first elastic arm and a second elasticity extending backward Arm, the first elastic arm, the elastic portion of the first row of conductive terminals, and the second elastic arm, the elastic portion of the second row of conductive terminals, elastically clamp the circuit board, the circuit board includes a protruding A main body part, the upper and lower surfaces of the main body part are respectively provided with a row of first contact points, a rear contact point located at a rear end of the main body part, an elastic part of the first row of conductive terminals, and a spring of the second row of conductive terminals. The first contact point portion elastically abuts against the first elastic arm and second elastic arm and the rear contact point elastic resisting.

Further, the insulating member includes an insulating housing fixed at a rear end of the insulating body and provided with a receiving groove, the receiving groove accommodating the elastic portions of the first and second rows of conductive terminals and inserting the circuit board.

The purpose of the present invention is achieved by the following technical solution three: a method for manufacturing an electrical connector, which cooperates with a circuit board, and includes the following steps: a first step, providing an insulating body, and holding the first row and the first row of the insulating body; Two rows of conductive terminals and a middle shield sheet, so that the insulating body has a base and a tongue plate extending forward from the base, and each conductive terminal is provided with a contact portion exposed on the tongue plate and a rearward extension. The elastic part at the rear end of the base; the second step is to provide an insulating case and a metal cover, sleeve the insulating case at the rear end of the insulating body and make the metal cover at the rear end of the insulating case, The elastic portion of the conductive terminal is accommodated in a receiving groove surrounded by the insulating case, and at least one of the intermediate cover sheet and the metal cover is provided with a first elastic arm and a second extending rearwardly. Elastic arm; the third step is to insert a circuit board into the receiving slot, so that the elastic part of the first elastic arm and the first row of conductive terminals is elastic with the elastic part of the second elastic arm and the second row of conductive terminals Hold the circuit board.

Further, the method for manufacturing the electrical connector further includes a fourth step that occurs after the third step, and in the fourth step, a shielding case covering the insulating body to form a receiving space is provided.

Compared with the prior art, the present invention has the following beneficial effects: the electrical connector of the present invention has metal parts to make the electromagnetic shielding effect better, is more fixed to the circuit board, and is simple to disassemble and low in cost.

100‧‧‧electrical connector

1‧‧‧First insulating body

10‧‧‧Containment space

11‧‧‧ tongue plate

12‧‧‧ base

120‧‧‧Setting Department

2‧‧‧Second insulation body

3‧‧‧ the third insulating body

4‧‧‧ the first row of conductive terminals

41‧‧‧First contact

42‧‧‧First connecting section

43‧‧‧First elastic part

431‧‧‧First clamping section

5‧‧‧ The second row of conductive terminals

51‧‧‧Second contact section

52‧‧‧Second connection section

53‧‧‧Second elastic section

531‧‧‧Second clamping section

6‧‧‧ intermediate mask

61‧‧‧Edge ground terminal

611‧‧‧Third clamping part

62‧‧‧Intermediate ground terminal

621‧‧‧Fourth clamping part

7‧‧‧Insulated housing

70‧‧‧container

71‧‧‧ divider

72‧‧‧ open slot

73‧‧‧ gap

74‧‧‧first ring

75‧‧‧Second Ring Section

8‧‧‧ metal cover

81‧‧‧ Upper wall

82‧‧‧ lower wall

83‧‧‧ sidewall

84‧‧‧ back wall

85‧‧‧Flexible terminal

86‧‧‧ resists shrapnel

9‧‧‧ shielding shell

101‧‧‧Mounting clip

1011‧‧‧ Positioning hole

200‧‧‧Circuit Board

201‧‧‧ first contact point

202‧‧‧Second Contact Point

203‧‧‧Third contact point

204‧‧‧ fourth contact point

210‧‧‧Main body

220‧‧‧ clamping groove

The first figure is a three-dimensional assembled view of the electrical connector of the present invention when combined.

The second figure is a combined perspective view of the first figure viewed from another direction.

The third figure is a three-dimensional combined view of the electrical connector according to the present invention taken out of a metal cover, a shielding case, and an insulating case.

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

The fifth diagram is a three-dimensional assembled view of the electrical connector of the present invention when it is not mated with a circuit board.

The sixth figure is a combined perspective view of the fifth figure viewed from another direction.

The seventh figure is an exploded perspective view of the electrical connector of the present invention.

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

The ninth figure is an exploded perspective view of the insulating body, the terminal, and the intermediate cover sheet in the electrical connector of the present invention.

The tenth figure is an exploded perspective view of the ninth figure viewed from another direction.

The eleventh figure is a schematic perspective view of the metal housing when the insulating housing is mounted on the insulating body in the electrical connector of the present invention.

The twelfth figure is a schematic perspective view of a metal cover in the electrical connector of the present invention mounted to the insulation case shown in the eleventh figure.

The thirteenth figure is a sectional view taken along the line XIII-XIII in the first figure.

Please refer to the first to thirteenth drawings together, which is an electrical connector 100 according to the present invention. Hereinafter, specific embodiments of the electrical connector combination of the present invention will be combined with the first to thirteenth drawings. The electrical connector 100 is connected to the circuit board 200 and is assembled to a corresponding electronic device to define a front-back direction and a left-right direction and a vertical direction perpendicular to the front-back direction. The electrical connector 100 includes an insulating member having an insulating body, a conductive terminal fixed to the insulating body, a metal member fixed to the insulating member, and a shielding case 9 covering the insulating body to form a receiving space 10. And a recessed mounting clip 101 sleeved on the shielding case 9.

Referring to the third to twelfth figures, the insulating member includes the insulating body and an insulating case 7 fixed to a rear end of the insulating body and provided with a receiving groove 70. The insulating body includes an upper The second insulating body 2 and the third insulating body 3 assembled below and the first insulating body 1 located outside the second insulating body 2 and the third insulating body 3. The first insulating body 1 includes a base 12 and a tongue plate 11 extending along a front end of the base 12. A circular sleeve portion 120 is recessed at the rear end of the base 12. Please refer to FIG. 7 to FIG. 8, the insulating case 7 is sleeved on the sleeve portion 120 of the first insulating body 1 and includes a partition rib 71 and eight opening grooves 72 evenly arranged at the rear end. And three gaps 73. The insulating case 7 is divided into a first annular portion 74 attached to the sleeve portion 120 and a rear end of the first annular portion 74 that is smaller than the first and second directions and the up and down direction. The second annular portion 75 of the one annular portion 74. The periphery of the first annular portion 74 is smoothly connected to the periphery of the base 12.

Referring to the third to tenth figures, the conductive terminals include a first row of conductive terminals 4 and a second row of conductive terminals 5 located on a corresponding surface of the first row of conductive terminals 4. The first row of conductive terminals 4 are integrally formed with the second insulating body 2, and the second row of conductive terminals 5 are integrally formed with the third insulating body 3. The first row of conductive terminals 4 includes a first contact portion 41 exposed on the surface of the tongue plate 11 for contact with a mating connector terminal, embedded in the base 12 and connected to the first contact portion 41. And a first elastic portion 43 connected to the first connecting portion 42 and penetrating the rear end of the first insulating body 1. The first elastic portion 43 is provided with a first clamping portion 431 having a curved shape. The second row of conductive terminals 5 is located on the lower surface of the first insulating body 1, and includes a second contact portion 51 that is exposed on the surface of the tongue plate 11 and is used for contact with the mating connector terminal. A second connection portion 52 of the base 12 and connected to the second contact portion 51 and a second elastic portion 53 connected to the second connection portion 52 and penetrating the rear end of the first insulating body 1. The second elastic portion 53 is provided with a curved second clamping portion 531. The elastic portion of the first row of conductive terminals 4 is referred to as a first elastic portion 43, and the elastic portion of the second row of conductive terminals 5 is referred to as a second elastic portion 53. The contact portion of the first row of conductive terminals 4 is referred to as a first contact portion 41, and the contact portion of the second row of conductive terminals 5 is referred to as a second contact portion 51.

Referring to the seventh to tenth figures, the intermediate mask sheet 6 is located between the second insulating body 2 and the third insulating body 3, and the intermediate mask sheet 6 includes edges at both ends. The ground terminal 61 and the intermediate ground terminal 62. The edge ground terminal 61 protrudes from the rear end of the first insulating body 1, is located on the same horizontal plane as the first elastic portion 43 of the first row of conductive terminals 4, and is located on both sides of the first elastic portion 43, The edge ground terminal 61 is provided with a third clamping portion 611 having a curved shape. The intermediate ground terminal 62 protrudes from the rear end of the first insulating body 1, is located on the same horizontal plane as the second elastic portion 53 of the second row of conductive terminals 5, and is located in the middle of the second elastic portion 53. The intermediate ground terminal 62 is provided with a fourth clamping portion 621 having a curved shape.

Referring to the first to eighth figures, the metal cover 8 is attached to the second annular portion 75 of the insulating case 7, and the periphery of the metal cover 8 and the periphery of the first annular portion 74 Level. The metal cover 8 includes an upper wall 81 attached to the second annular portion 75, a lower wall 82 provided corresponding to the upper wall 81, and located on both sides of the upper wall 81 and connected to the upper wall 81. And a rear wall 84 extending vertically downward along the rear end of the upper wall 81 and a side wall 83 of the lower wall 82 extending vertically downward along the rear end of the lower wall 82 and not in contact with each other; Eight elastic terminals 85 and six resisting elastic pieces 86 located on the lower wall 82 and the side wall 83 of the upper wall 81 are arranged in two rows along its edge. The metal cover 8 is elastically abutted against the circuit board 200 through the elastic terminal 85.

The intermediate shielding sheet 6 and the metal cover 8 are collectively referred to as a metal piece. Both the edge ground terminal 61 and the upper row of elastic terminals 85 may be referred to as a first elastic arm, and the middle ground terminal 62 and the lower row of elastic terminals 85 may be referred to as a second elastic arm.

Referring to the first to second figures, the shielding case 9 covers the first insulating body 1 to form a receiving space 10. The inside of the shielding case 9 is resisted by the resisting elastic piece 86 and is used to fix the metal cover 8 and the shielding case 9.

Referring to the first to eighth figures, the mounting clip 101 is concave and is used to fix the electrical connector 100 and the circuit board 200. Positioning holes 1011 are provided on the left and right sides of the mounting clip 101 for mechanically fixing the electrical connector 100 to the circuit board 200.

Referring to the third to sixth figures, the circuit board 200 includes a protruding main body portion 210 and a holding groove 220 spaced from the main body portion 210 and other parts of the circuit board. The rear end of the metal cover 8 is clamped and received in the clamping groove 220. The circuit board 200 further includes twelve first contact points 201 on the upper and lower surfaces of the main body portion 210 arranged in a row and in contact with the first elastic portion 43 and the second elastic portion 53. And a rear contact point at the rear end of the main body portion 210. The rear contact points include four second contact points each above and below the main body 210 arranged in a row and located at the rear end of the first contact point 201 and in contact with the elastic terminal 85 of the metal cover 8. 202. Two third contact points 203 located on both sides of the first contact point 201 on the upper surface of the main body portion 210 and in contact with the edge ground terminal 61, and on the lower surface of the main body portion 210 and on the second A fourth contact point 204 in the middle of the contact point 202 and in contact with the intermediate ground terminal 62.

When assembling the electrical connector 100 and the circuit board 200, a first step is to provide an insulating body, first and second rows of conductive terminals 4, 5 and an intermediate shielding sheet 6 held on the insulating body, The insulating body has a base 12 and a tongue plate 11 extending forward from the base 12. The first and second rows of conductive terminals 4 and 5 are provided with a first contact portion exposed on the tongue plate 11. 41. The second contact portion 51 and the first elastic portion 43 and the second elastic portion 53 extending backward from the rear end of the base 12. In a second step, an insulating case 7 and a metal cover 8 are provided, the insulating case 7 is sleeved on the rear end of the insulating body, and the metal cover 8 is sleeved on the rear end of the insulating case 7, so that the The first elastic portion 43 and the second elastic portion 53 are received in a receiving groove 70 surrounded by the insulating case 7; the installation order of the insulating body, the insulating case 7, and the metal cover 8 is first The insulating case 7 is mounted to the insulating body, and then the metal cover 8 is mounted to the mounted body. The insulating case 7 and the insulating body are firstly mounted with the metal cover 8 on the insulating case 7, and then the installed metal cover 8 and the insulating case 7 are mounted on the insulating body. In a third step, the circuit board 200 is inserted into the receiving slot 70, so that the first elastic arm, the first elastic portion 43 and the second elastic arm, the second elastic portion 53 elastically clamp the circuit board 200 together. . The fourth step is to provide a shielding case 9 covering the insulating body to form a receiving space 10.

At this point, the installation is complete. Because the circuit board 200 and the electrical connector 100 are provided by the metal part, the first elastic portion 43 and the second elastic portion 53 hold the circuit board 200 from the up and down direction, and The elastic terminal 85 provided on the metal cover 8 on the metal piece is used to fix the circuit board 200 and the metal cover 8, thereby achieving the fixation of the entire circuit board 200 and the electrical connector 100, and the The electrical connector 100 is directly facing the circuit board 200, and when the electrical connector 100 needs to be replaced, it can be detached directly from the circuit board 200 without replacing the circuit board, the operation is simple, convenient and low cost.

The above descriptions are only part of the embodiments of the present invention, and are not all the embodiments. Any equivalent changes made by those of ordinary skill in the art to the technical solutions of the present invention by reading the description of the present invention are all claimed in the claims of the present invention. Covered.

Claims (9)

An electrical connector mated with a circuit board. The electrical connector includes an insulating member having an insulating body, first and second rows of conductive terminals fixed to the insulating body, and metal pieces fixed to the insulating member. And a shielding case covering the insulating body to form a receiving space, the insulating body includes a base and a tongue plate extending forward from the base, and the first and second rows of conductive terminals are provided with an exposure The contact portion of the tongue plate and the elastic portion extending rearwardly from the rear end of the base are characterized in that the elastic portions of the first and second rows of conductive terminals are clamped above and below the circuit board. On the surface, the metal piece includes a first elastic arm and a second elastic arm respectively clamped on the upper and lower surfaces of the circuit board. The electrical connector according to item 1 of the scope of patent application, wherein the metal piece includes intermediate shield sheets between the first and second rows of conductive terminals, and the intermediate shield sheets have separate clamps. The first elastic arm and the second elastic arm on the lower surface of the circuit board. The electrical connector according to item 2 of the scope of patent application, wherein the first elastic arm is a pair of edge ground terminals extending rearwardly from both lateral sides of the rear end of the intermediate mask sheet, and the second elastic arm is An intermediate ground terminal between the pair of edge ground terminals. The electrical connector according to item 1 of the scope of patent application, wherein the insulating member includes an insulating body and an insulating case having a receiving groove fixed to the insulating body, and the metal member includes a sleeve mounted on the insulating shell. Outside the metal cover, the elastic portions of the first and second rows of conductive terminals protrude into the receiving slot and are clamped on the upper and lower surfaces of the circuit board, and the metal cover has a protrusion protruding into the The first elastic arm and the second elastic arm which receive the groove and are clamped on the upper and lower surfaces of the circuit board. The electrical connector according to item 2 of the scope of patent application, wherein the metal piece further includes a metal cover, and the metal cover also includes the first elastic arm and the second elastic portion clamped on the upper and lower surfaces of the circuit board. Elastic arm. The electrical connector according to item 4 of the scope of patent application, wherein the rear end of the base has a sleeve portion, and the insulating housing includes a first annular portion sleeved on the sleeve portion and the sleeve portion is located on the sleeve portion. The second annular portion at the rear end of the first annular portion is lower than the first annular portion, and the metal cover is sleeved on the second annular portion and is smoothly connected to the first annular portion. The surface of the metal cover is provided with a plurality of resisting elastic pieces for resisting and shielding the inner wall of the shell. An electrical connector combination includes an electrical connector and a circuit board that cooperate with each other. The electrical connector includes an insulating member having an insulating body, first and second rows of conductive terminals fixed on the insulating body, and a holding The insulating member includes a metal member and a shielding shell covering the insulating body to form a receiving space. The insulating body includes a base and a tongue plate extending forward from the base. The first row and The second row of conductive terminals is provided with a contact portion exposed on the tongue plate and an elastic portion extending rearwardly from the rear end of the base, characterized in that the elastic portions of the first and second rows of conductive terminals are clamped. The metal piece includes a first elastic arm and a second elastic arm respectively clamped on the upper and lower surfaces of the circuit board. The circuit board includes a protruding body. A row of first contact points and a rear contact point located at the rear end of the main body portion are respectively provided on the upper and lower surfaces of the main body portion, the elastic portion of the first row of conductive terminals, and the elastic portion of the second row of conductive terminals. And the first connection Elastic resisting point, the first elastic arm and second elastic arm and the rear contact point elastic resisting. The electrical connector combination according to item 7 of the scope of patent application, wherein the metal piece includes a middle shield sheet between the first and second rows of conductive terminals, and the middle shield sheets have separate clips The first elastic arm and the second elastic arm held on the lower surface of the circuit board. The electrical connector assembly according to item 7 of the scope of the patent application, wherein the insulating member includes an insulating body and an insulating housing with a receiving groove fixed to the insulating body, and the metal member includes a back-to-back sleeve. The metal cover outside the insulating housing, the elastic portions of the first and second rows of conductive terminals protrude into the receiving slot and are clamped on the upper and lower surfaces of the circuit board. The metal cover has The first elastic arm and the second elastic arm protrude into the receiving slot from front to back and clamp the upper and lower surfaces of the circuit board.