TWI558003B - Electrical connector and electrical connector combination - Google Patents

Description

Electrical connector and electrical connector combination

The present invention relates to an electrical connector, and more particularly to a connection structure in which an electrical connector mates with a circuit board.

The Chinese patent CN201320378153.0 discloses an electrical connector comprising an insulative housing, a first terminal set fixed to the insulative housing, and a shield, the insulative housing comprising a base and a forwardly extending tongue, the tongue having a relative a first surface and a second surface, the first terminal set is exposed to the first surface, the shield is disposed on the tongue and located between the first surface and the second surface, and the first terminal group includes a ground terminal The grounding terminal is provided with a contact portion that protrudes toward the shielding member and contacts the shielding member.

The tail of the upper row of terminals of such an electrical connector is surface soldered to the board. On the one hand, since the tail portion of the upper row of terminals protrudes horizontally rearward from the first insulator, the tail design is not elastic, so that the electrical connector is easily soldered to the circuit board because of the coplanarity of the terminal tail. The effect of tolerances causes some of the upper rows of terminals to be soldered to the board and cause empty soldering. On the other hand, the high temperature during soldering tends to adversely affect the electrical performance of the electrical connector, and solder cracking may cause poor electrical connection. this In addition, the lower terminal of the electrical connector is rigidly connected to the circuit board by means of in-line soldering, which makes it difficult for the electrical connector to be accurately aligned with the opening on the housing of the electronic device (such as a mobile phone) due to manufacturing tolerances. Bit.

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and to provide an electrical connector and an electrical connector combination that can prevent the occurrence of air welding and that the position of the electrical connector can be appropriately adjusted to provide installation. Flexibility.

The present invention provides an electrical connector for the above technical problem, comprising: an insulative housing comprising a base, a tongue extending forwardly from the base, and extending rearwardly from opposite sides of the base Two side walls, the tongue plate has a first abutting surface and a second abutting surface opposite to each other; a set of first conductive terminals, the first conductive terminal comprises a fixing portion fixed on the base, The fixing portion extends forwardly to a plate-shaped extending arm of the tongue plate and an elastic extending arm extending rearward from the fixing portion, the plate-shaped extending arm is exposed on the first abutting surface of the tongue plate, the elasticity The extension arm is received between the two side walls; a set of second conductive terminals, the second conductive terminal includes a fixing portion fixed on the base, and a plate extending forward from the fixing portion to the tongue plate An extension arm and an elastic extension arm extending rearward from the base by the fixing portion, the plate-shaped extension arm being exposed on the second abutting surface of the tongue plate, the elastic extension arm being received between the two side walls Wherein the first conductive terminal of the group Forming an insertion space between the elastic extension arm and the elastic extension arm of the second conductive terminal; a grounding metal piece disposed in the tongue plate and spacing the set of first conductive terminals and the set of second conductive terminals And an outer shielding shell fixed on the insulating body, the peripheral space surrounding the tongue plate forms a first mating cavity, and the two side walls are covered to form a second mating cavity.

The present invention further provides an electrical connector assembly for the above technical problem, comprising an electrical connector and a circuit board as described above that cooperate with each other; the circuit board is provided with a plug portion having two upper and lower opposite sides a pair of electrical contact pads are disposed on the two abutting surfaces; wherein the plug portion of the circuit board is correspondingly inserted into the insertion space of the second mating cavity of the electrical connector, the plug portion The electrical contact pieces on the two abutting faces are respectively elastically clamped by the elastic extension arms of the first conductive terminals of the set and the elastic extension arms of the set of second conductive terminals, and are electrically connected.

Compared with the prior art, the electrical connector and the electrical connector combination of the present invention are electrically connected to the electrical contact piece on the circuit board by the elastic engagement of the elastic extension arm, and the elastic engagement can reduce the coplanarity. The degree of tolerance affects the degree of fit and prevents the occurrence of air soldering; and the elastic bonding method also eliminates the soldering between the conductive terminals and the board, thereby reducing the high temperature during soldering. The electrical properties of the electrical connector adversely affect the risk of solder cracking. In addition, this elastic bonding allows the electrical connector to be floating on the board and can be properly adjusted when locked to the board. Electrical connector and The relative position between the boards facilitates accurate alignment of the electrical connectors to the openings in the electronics housing, providing installation flexibility.

10‧‧‧Electrical connector

100‧‧‧ joint body

101‧‧‧Insulated body

102‧‧‧Base

103‧‧‧ tongue plate

104‧‧‧Side wall

105‧‧‧ holding slot

106‧‧‧ Reception trough

108‧‧‧ positioning slot

109‧‧‧ front surface

1‧‧‧First Terminal Module

11‧‧‧First insulation

111‧‧‧ first base

112‧‧‧First tongue part

113‧‧‧First extension arm

114‧‧‧First storage trough

115‧‧‧First holding slot

116‧‧‧First fixing hole

117‧‧‧Second fixing hole

1121‧‧‧ first joint

1122‧‧‧ first docking surface

1131‧‧‧First Stage Department

12‧‧‧First conductive terminal

121‧‧‧Fixed Department

122‧‧‧Shape extension arm

123‧‧‧elastic extension arm

1231‧‧‧Flexible section

1232‧‧‧ joint section

1233‧‧‧Introduction section

2‧‧‧Second terminal module

21‧‧‧Second insulation

211‧‧‧ second base

212‧‧‧Second tongue department

213‧‧‧Second extension arm

214‧‧‧Second holding trough

215‧‧‧Second holding slot

216‧‧‧First stud

217‧‧‧second stud

2121‧‧‧ second joint

2122‧‧‧ second docking surface

2131‧‧‧Second stage

2132‧‧‧Sinking trough

22‧‧‧Second conductive terminal

221‧‧‧ Fixed Department

222‧‧‧Shape extension arm

223‧‧‧elastic extension arm

2231‧‧‧Flexible section

2232‧‧‧joining section

2233‧‧‧Introduction section

3‧‧‧Grounding metal sheet

31‧‧‧ Subject

32‧‧‧First connection

33‧‧‧Second connection

34‧‧‧Flexible contact arm

311‧‧‧through hole

4‧‧‧Outer shielded housing

41‧‧‧First docking chamber

42‧‧‧Second docking chamber

421‧‧‧Interposed space

43‧‧‧Locking arm

431‧‧‧Lock hole

5‧‧‧Inside shielded housing

53‧‧‧Metal plates

536‧‧‧Fixed tabs

537‧‧‧Connected shrapnel

8‧‧‧ boards

81‧‧‧ base

82‧‧‧Interface

83‧‧‧Installation Department

84‧‧‧Installation slot

85‧‧‧ escaping channel

86‧‧‧Mounting holes

821‧‧‧Electrical contact piece

9‧‧‧fasteners

10’‧‧‧Electrical connector

4'‧‧‧Outer shielded housing

45’‧‧‧ bottom wall

46’‧‧‧ Sidewall

47’‧‧‧ top wall

471’‧‧‧ joint seam

4711’‧‧‧Swallowtail

49’‧‧‧Locks

491’‧‧‧Main Department

492’‧‧‧ Side

493’‧‧‧Locking Department

4911’, 4912’‧‧‧ welding

4931’‧‧‧Lockhole

8’‧‧‧ boards

86’‧‧‧ mounting holes

87’‧‧‧Guide

9’‧‧‧fasteners

Other features and advantages of the present invention will be apparent from the detailed description of the embodiments of the present invention. FIG. 1 is a perspective view of a preferred embodiment of the electrical connector assembly of the present invention; 3 is a cross-sectional view taken along line AA of FIG. 2, illustrating the cooperation of the electrical connector with the circuit board; FIG. 4 is a comparison of the electrical connector assembly of the present invention. FIG. 5 is a perspective view of the electrical connector of the present invention; FIG. 6 is a rear view of the electrical connector of the present invention; FIG. 5 is a perspective view of the electrical connector, circuit board and fastener of the electrical connector; FIG. Figure 7 is a cross-sectional view taken along line BB of Figure 6, illustrating the interior of the electrical connector; Figure 8 is a cross-sectional view taken along line CC of Figure 6, illustrating the interior of the electrical connector; Figure 9 Figure 13 is an exploded perspective view of the electrical connector of the present invention, illustrating the components of the electrical connector; Figure 14 is a perspective view showing another preferred embodiment of the electrical connector assembly of the present invention; Figure 15 is a perspective exploded view Figure, illustrating the composition of the electrical connector assembly shown in Figure 14. Pieces.

While the invention may be readily embodied in various forms, the embodiments illustrated in the drawings and described in detail herein The exemplary description of the principles of the invention is not intended to limit the invention.

Thus, a feature of the invention is intended to be illustrative of one of the embodiments of the invention, and is not intended to be Moreover, it should be noted that this specification describes a number of features. Although certain features may be combined together to illustrate possible system designs, these features are also applicable to other combinations not explicitly illustrated. Accordingly, the illustrated combinations are not intended to be limiting, unless otherwise indicated.

In the embodiments shown in the figures, the indication of directions (such as up, down, left, right, front and back) is used to explain that the structure and motion of the various elements of the present invention are not absolute but relative. These descriptions are suitable when the elements are in the positions shown in the figures. If the description of the position of these elements changes, the indications of these directions also change accordingly.

The preferred embodiments of the present invention are further described in detail below with reference to the drawings of the specification.

Referring to Figures 1 through 4, a preferred embodiment of the electrical connector assembly of the present invention is shown. The connector assembly includes an electrical connector 10 and a circuit board 8 for use with the electrical connector 10. In the present embodiment, the electrical connector 10 is mounted to the circuit board 8 by a sinker. The electrical connector 10 includes An engaging body 100, a grounding metal sheet 3 fixed in the joint body 100, an outer shield shell 4 surrounding the joint body 100, and a portion disposed inside the outer shield shell 4 and attached to the surface of the joint body 100 Inner shield housing 5.

A locking arm 43 extends laterally outward from each side of the outer shield housing 4 . A locking hole 431 is defined in each of the locking arms 43. The circuit board 8 includes a base portion 81 and a plug portion 82 disposed on a front side of the base portion 81. The plug portion 82 has two opposing faces that are opposite each other, and each of the mating faces is provided with a set of electrical contact pieces 821. These electrical contact strips 821 can cooperate with the conductive terminals 12, 22 and the grounded metal strip 3 on the electrical connector 10 to achieve electrical connection therebetween.

The circuit board 8 is further provided with two mounting portions 83 which are located on both sides of the plug portion 82 and extend forwardly respectively. A relief channel 85 is formed between each of the mounting portions 83 and the plug portion 82. The two evasing channels 85 can be used to receive the structures on both sides of the rear portion of the electrical connector 10 when the circuit board 8 is mated with the electrical connector 10. In other words, the front edge of the circuit board 8 is recessed rearwardly to form a mounting groove 84. The plug portion 82 is protruded forwardly in the middle of the mounting groove 84. Each mounting portion 83 is provided with a mounting hole 86 corresponding to the locking hole 431. The electrical connector 10 is secured to the circuit board 8 by fasteners 9 such as bolts that are threaded into the corresponding mounting holes 86 and locking holes 431.

The front portion of the electrical connector 10 is surrounded by a first mating cavity 41 into which another mating connector (not shown) can be inserted. A rear portion of the electrical connector 10 is formed with a second mating cavity 42 into which the plug portion 82 can be inserted. And two positioning slots 108 located on both sides of the second docking cavity 42. When the insertion portion 82 of the circuit board 8 is inserted into the second mating cavity 42, the two side edges of the insertion portion 82 are correspondingly inserted into the two positioning slots 108, thereby achieving the effect of positioning and preventing sway.

Referring to FIG. 5 to FIG. 13 , the joint body 100 includes a first terminal module 1 and a second terminal module 2 that are combined with each other. The first terminal module 1 has a first insulating member 11 and a plurality of first conductive terminals 12 embedded and fixed to the first insulating member 11. The first insulating member 11 has a first base portion 111, a first tongue portion 112 extending forward from the front side of the first base portion 111, and two first extensions extending rearward from opposite sides of the first base portion 111. Arm 113.

The first tongue portion 112 has a first joint surface 1121 facing the second terminal module 2 and a first mating surface 1122 opposite to the first joint surface 1121. The first tongue portion 112 is formed with two first receiving grooves 114 and two first holding grooves 115 located in front of the two first receiving grooves 114 at a rear position of the two side faces. The first tongue portion 112 is provided with two first fixing holes 116 and two second fixing holes 117 on the first joint surface 1121.

A first step portion 1131 extending in the front-rear direction is formed below the inner side of each of the first extension arms 113. The first step portion 1131 has a substantially horizontal bottom surface.

The fixing portion 121 of the first conductive terminal 12 is fixed in the first base portion 111, and the front end is protruded forward from the first base portion 111 to the first tongue portion 112 to form a plate-shaped extending arm exposed to the first abutting surface 1122. 122, and the rear end is extended rearward from the first base 111 to form a resilient connection to the circuit The electrical contact of the plate 8 is in contact with the elastic extension arm 123 of the piece 821.

In this embodiment, specifically, the elastic extension arm 123 includes an elastic section 1231 extending obliquely toward the rear, and an engaging section 1232 is formed at the end of the elastic section 1231, and is further tilted backward by the engaging section 1232. A lead-in segment 1233 extends. Referring to FIGS. 3 and 8, the joint portion 1232 can be elastically abutted on the electrical contact piece 821 on the upper side surface of the circuit board 8. The joint portion 1232 is preferably slidable back and forth with respect to the electrical contact piece 821.

The second terminal module 2 and the first terminal module 1 are integrally coupled to each other. The second terminal module 2 has a second insulating member 21 that is assembled upwardly to the first insulating member 11 and a second conductive terminal 22 that is embedded and fixed to the second insulating member 21. The second insulating member 21 has a second base portion 211 corresponding to the first base portion 111, a second tongue portion 212 extending forward from the front side of the second base portion 211 and corresponding to the first tongue portion 112, by the second insulating member 21 Both sides of the second base portion 211 extend rearwardly and correspond to the two second extension arms 213 of the first extension arm 113.

The second tongue portion 212 has a second joint surface 2121. facing the first joint surface 1121 and a second joint surface 2122 opposite to the second joint surface 2121. The two sides of the second tongue portion 212 are formed with two second receiving grooves 214 corresponding to the first receiving grooves 114 and two second holding grooves 215 corresponding to the first holding grooves 115. The second bonding surface 2121 is provided with two first protrusions 216 protruding toward the first terminal module 1 and corresponding to the first fixing holes 116 and two protruding positions toward the first terminal module 1 and Corresponding to the second protrusion 217 of the second fixing hole 117.

A second step portion 2131 extending in the front-rear direction and corresponding to the first step portion 1131 is formed above the inner side of each of the second extension arms 213. The second step portion 2131 has a substantially horizontal top surface. Different from the first stage portion 1131 described above, the front portion of the top surface of the second step portion 2131 is recessed downwardly to form a lower sinking groove 2132.

The set of second conductive terminals 22 has the same structure as the set of first conductive terminals 12, and the set of first conductive terminals 12 and the set of second conductive terminals 22 are vertically disposed opposite each other and are 180 degrees rotationally symmetric. The fixing portion 221 of the second conductive terminal 22 is fixed to the second base portion 211, and the front end is protruded forward by the second base portion 211 to form a plate-shaped extending arm 222 exposed to the second abutting surface 2122, and the rear end is provided by the second base portion The 211 is extended rearward to form an elastic extension arm 223 for elastically engaging the electrical contact piece 821 of the circuit board 8.

In this embodiment, specifically, the elastic extension arm 223 includes an elastic section 2231 extending obliquely from the front to the rear, and a joint section 2232 is formed at the end of the elastic section 2231 and further extended backward from the joint section 2232. One of the import segments 2233. Referring to FIGS. 3 and 8, the joint portion 2232 can be elastically abutted on the electrical contact piece 821 on the lower side surface of the circuit board 8. The joint portion 2232 is preferably slidable back and forth in a slight amount relative to the electrical contact piece 821.

Referring to FIG. 3 and FIG. 8 , it can be seen that an insertion space 421 is formed between the elastic extension arm 123 of the first conductive terminal 12 and the elastic extension arm 223 of the second conductive terminal 22 for the circuit board 8 . The plug portion 82 is correspondingly inserted therein. The elastic segment 1231 of the first conductive terminal 12 and the elastic segment 2231 of the second conductive terminal 22 located below the second conductive terminal 12 are After the travel, the two are extended together, and the structural design is advantageous for clamping the circuit board 8 to obtain a good electrical connection effect. The lead-in section 1233 of the first conductive terminal 12 and the lead-in section 2233 of the second conductive terminal 22 extend away from each other after going forward. The structure in which the lead-in sections 1233, 2233 are flared rearward facilitates the insertion of the circuit board 8. It is worth mentioning that the size of the insertion space 421 in the up and down direction is elastic, that is, the elastic extension arms 123, 223 are in a freely extended state before the circuit board 8 is inserted, and the insertion space 421 is The dimension in the up and down direction (that is, the shortest distance between the two joint sections 1232 and 2232) is the smallest. After the insertion of the circuit board 8, the elastic extension arms 123, 223 are in a force-expanded state, and the insertion space 421 is up and down. The size in the direction becomes larger.

When the first terminal module 1 and the second terminal module 2 are combined, the first insulating member 11 and the second insulating member 21 are combined to form an insulative body 101 of the electrical connector 10, the first base portion The base portion 102 of the insulative housing 101 is combined with the second base portion 211, and the first tongue portion 112 is combined with the second tongue portion 212 to form a tongue 103 of the insulative housing 101. The second extension arm 213 and the two first extension arms 113 are combined to form two side walls 104 of the insulative housing 101.

The first receiving slot 114 and the second receiving slot 214 are combined to form a receiving slot 106 of the insulative housing 101. The first latching slot 115 and the second latching slot 215 are combined to form the insulative housing 101. One of the holding slots 105. The first stepped portion 1131 and the second stepped portion 2131 are combined to form two positioning grooves 108 on the side wall 104 of the insulative housing 101. The vertical interval between the bottom surface and the top surface of the two positioning grooves 108 is slightly larger than the thickness of the circuit board 8 Degree size. The two positioning grooves 108 are at the same height as the insertion space 421 and penetrate each other. Referring to Figure 10, the base 102 of the insulative housing 101 has a generally vertical front surface 109.

The grounding metal piece 3 is sandwiched between the first terminal module 1 and the second terminal module 2, and the structure is relatively easy to manufacture and assemble. Thereby, the structural strength of the tongue 103 formed by splicing the first tongue portion 112 and the second tongue portion 212 can be improved, and the high frequency signal crosstalk between the first conductive terminal 12 and the second conductive terminal 22 can be reduced. The opposite surfaces of the grounding metal sheet 3 are respectively in contact with the first joint surface 1121 of the first tongue portion 112 and the second joint surface 2121 of the second tongue portion 212.

The grounding metal sheet 3 includes a main body 31 and a first connecting portion 32, a second connecting portion 33 and two elastic contact arms 34 extending from the main body 31. The body 31 is disposed in the tongue 103 and spaced apart from the set of first conductive terminals 12 and the set of second conductive terminals 22.

The first connecting portion 32 protrudes from the tongue plate 103 and is in contact with the inner shield case 5 to be electrically connected. Referring to FIG. 7, in the present embodiment, the first connecting portion 32 includes two tabs projecting outwardly from the two sides of the main body 31.

The second connecting portion 33 extends out of the side wall 104 and is electrically connected to the outer shield case 4 . Referring to FIG. 7, in the embodiment, the second connecting portion 33 is two elastic arms extending obliquely outward from the rear side of the main body 31. The ends of the two elastic arms are elastically abutted on the outer side. The inner wall of the shield case 4 (the second connecting portion 33 shown in FIG. 7 is in a freely extending state) establishes a ground path with the outer shield case 4.

The two elastic contact arms 34 are bent backward from the rear end of the main body 31 and extend into a positioning groove 108 inside the side wall 104 of the insulating body 101 (see FIG. 8). The use of space facilitates the miniaturization of electrical connectors. The two elastic contact arms 34 are elastically abutted on the lower abutting surface of the plug portion 82 of the circuit board 8 and electrically connected to the corresponding electrical contact piece 821 for grounding, so that the grounding metal piece 3 can The two resilient contact arms 34 provide a ground path to the circuit board 8, which facilitates the transmission of high frequency signals and improves the electromagnetic compatibility (EMC) of the electrical connector 10.

In addition, the left and right sides of the main body 31 of the grounding metal sheet 3 are exposed to the fastening groove 105, and can be electrically connected to a grounding elastic piece (not shown) on the side of the other mating connector, thereby facilitating the transmission of high frequency signals. The main body 31 of the grounding metal piece 3 is provided with two through holes 311 penetrating vertically. The through hole 311 corresponds to the second fixing hole 117 of the first insulating member 11 and the second protruding post 217 of the second insulating member 21, so that the second protruding post 217 can pass through the through hole 311 of the grounding metal piece 3 and the second fixing The hole 117 is fixedly engaged and simultaneously positions the grounding metal piece 3.

The outer shield case 4 surrounds an outer space of the tongue 103 that engages the front portion of the body 100 and forms a first docking cavity 41 for mating the mating connector. The outer shield housing 4 also covers the two side walls 104 at the rear of the body 100 to form a second mating cavity 42. The second mating cavity 42 encloses the elastic extension arm 123 of the first conductive terminal 12 and the elastic extension arm 223 of the second conductive terminal 22 therein, and can function as a shield. Wherein, the foregoing insertion space 421 and the two positioning slots 108 are located in the second docking in the vertical direction. The middle of the cavity 42. The plate-shaped extension arm 122 of the first conductive terminal 12 and the plate-shaped extension arm 222 of the set of second conductive terminals 22 are vertically disposed opposite each other in the first docking cavity 41 and are 180 degrees rotationally symmetric, so that the other Whether the docking connector is inserted or reversed can achieve the docking of the electrical connector 10 and the docking connector.

A locking arm 43 provided with a locking hole 431 is laterally outwardly extended on both sides of the outer shielding shell 4 . It is worth mentioning that by grounding the mounting hole 86 on the circuit board 8, the outer shield case 4 can also be reliably grounded by the locking arm 43, thereby facilitating the transmission of high frequency signals, improving the electrical connector 10. Electromagnetic compatibility.

The inner shield housing 5 is interposed between the outer shield housing 4 and the first base portion 111 and the second base portion 211, and covers at least the rear portion of the tongue plate 103 and the first base portion 41 of the base 102 facing the first mating cavity 41. Front surface 109.

In the present embodiment, the inner shield case 5 includes two metal plates 53 that are spliced together. The two metal plates 53 are respectively fixed on the upper and lower sides of the insulative housing 101.

The left and right sides of the metal plate 53 are bent at positions corresponding to the receiving grooves 106 to form two fixing tabs 536. The first connecting portion 32 is inserted between the two fixing tabs 536 of the two metal plates 53 to be in contact with the inner shield case 5 to achieve electrical connection. Preferably, the first connecting portion 32 of the grounding metal piece 3 and the inner shielding case 5 are fixedly connected together by laser welding to enhance the reliability of electrical connection therebetween. This structure increases the grounding path of the grounded metal piece 3, thereby facilitating the transmission of high frequency signals and improving the electromagnetic compatibility of the electrical connector 10.

In addition, the metal plate 53 is formed with a connecting elastic piece 537 capable of elastically engaging with the outer shielding case 4, so that the inner shielding case 5 can be grounded through the connecting elastic piece 537 and the outer shielding case 4, which is favorable for transmission of high-frequency signals. The electromagnetic compatibility of the electrical connector 10 is improved.

The assembly process of the electrical connector 10 of the present invention generally comprises: stamping and bending the formed conductive terminals 12 and 22, the grounding metal piece 3, the outer shielding case 4, and the metal plate 53; and then adopting the manufacturing process of insert molding to obtain the first The terminal module 1 and the second terminal module 2; then the grounding metal piece 3 is installed between the first terminal module 1 and the second terminal module 2, and the first terminal module 1 and the second terminal module are The groups 2 are assembled together to obtain the joint body 100; then, the two metal plates 53 are correspondingly mounted to the upper and lower sides of the joint body 100, and the ground metal sheet 3 and the metal plate 53 are welded together; The outer shield case 4 is then sleeved to the outer periphery of the joint body 100.

When the electrical connector 10 is assembled to the circuit board 8, it is only necessary to insert the plug portion 82 of the circuit board 8 from the rear of the electrical connector 10 into the insertion space 421 of the second docking cavity 42 to make the elastic The extension arms 123, 223 are in contact with the corresponding electrical contact strips 821, and then the position of the electrical connector 10 is adjusted to accurately align with the opening of the outer casing of the electronic device, and then the electrical connector is firmly secured by the fasteners 9. 10 is locked to the two mounting portions 83 of the circuit board 8, thereby improving the adaptability of the electrical connector 10 during installation.

The electrical connector of the present invention is electrically connected to the electrical contact piece 821 on the upper and lower sides of the insertion portion 82 of the circuit board 8 through the elastic extension arms 123 and 223. This elastic bonding can enhance the adhesion of the two. Combined To prevent the occurrence of void welding; and the manner of such elastic engagement can be omitted, so that the high temperature during soldering can be reduced to adversely affect the electrical performance of the electrical connector 10, and there is no risk of solder cracking; The manner of elastic engagement enables the electrical connector 10 to be floatingly connected to the circuit board 8, and the relative position between the electrical connector 10 and the circuit board 8 can be slightly adjusted, and the locking structure of the electrical connector 10 is advantageously used. The precise alignment of the electrical connector 10 with the opening in the electronics housing provides flexibility in installation.

Referring to Figures 14 and 15, a further preferred embodiment of the electrical connector and electrical connector assembly of the present invention is illustrated. In the present embodiment, the outer shield case 4' of the electrical connector 10' is different from the outer shield case 4 described above: the outer shield case 4' includes a bottom wall 45' from which the bottom wall 45 The two side walls 46' are bent upwardly from the two sides, and a top wall 47' is formed by the two side walls 46' extending toward each other and being joined together. A joint seam 471' is formed on the top wall 47'. The electrical connector 10' also includes a locking tab 49' secured to the outer shield housing 4'.

In the present embodiment, the top wall 47' is provided with a plurality of dovetail segments 4711' at the joint slits 471' so as to be interlocked with each other. The locking piece 49' includes a flat trunk portion 491', two side portions 492' respectively bent from two sides of the trunk portion 491', and further outward from the outer sides of the two side portions 492' Two locking portions 493' extending horizontally from the outside. Each of the locking portions 493' is provided with a locking hole 4931'. The main portion 491' is attached to the top wall 47', and the two side portions 492' are in contact with the two side walls 46'. The locking piece 49' is preferably laser welded. It is firmly bonded to the top wall 47' and the two side walls 46'. The locking portion 493' and the locking hole 4931' have the same functions as the aforementioned locking arm 43 and the locking hole 431.

In the present embodiment, the welded portion 4911' of the locking piece 49' and the top wall 47' is located at the dovetail portion 4711' of the joint slit 471'. The weld 4921' of the locking tab 49' and the side wall 46' is located substantially in the middle of the side wall 46'.

The circuit board 8' is formed with a guide piece 87' around the mounting hole 86'. In this embodiment, the electrical connector 10' can be locked to the circuit board 8' and electrically grounded by a fastener 9' that is disposed in the locking hole 4931' and the mounting hole 86'. In other embodiments, the locking hole 4931' on the locking portion 493' can be omitted, and the electrical connector 10' can be soldered or bonded by conductive adhesive. The guiding piece 87' is fixedly coupled to the circuit board 8' and electrically grounded.

This design using the locking piece 49' can enhance the structural strength of the outer shield case 4' to prevent cracking at the joint slit 471', and also maintain the complete sealing of the outer shield case 4', improving the electricity. The electromagnetic compatibility of the connector 10' and the improvement of the waterproof performance of the electrical connector.

The above is only a preferred embodiment of the present invention, and is not intended to limit the embodiments of the present invention. Those skilled in the art can make corresponding modifications or modifications to the present invention in accordance with the main idea and spirit of the present invention. The scope of protection shall be subject to the scope of protection required by the scope of application for patents.

10‧‧‧Electrical connector

101‧‧‧Insulated body

102‧‧‧Base

103‧‧‧ tongue plate

104‧‧‧Side wall

11‧‧‧First insulation

1131‧‧‧First Stage Department

12‧‧‧First conductive terminal

121‧‧‧Fixed Department

122‧‧‧Shape extension arm

123‧‧‧elastic extension arm

21‧‧‧Second insulation

2131‧‧‧Second stage

22‧‧‧Second conductive terminal

3‧‧‧Grounding metal sheet

4‧‧‧Outer shielded housing

41‧‧‧First docking chamber

42‧‧‧Second docking chamber

5‧‧‧Inside shielded housing

8‧‧‧ boards

Claims (24)

An electrical connector includes an insulative housing including a base, a tongue extending forwardly from the base, and two side walls extending rearwardly from opposite sides of the base, the tongue a first abutting surface and a second abutting surface; a set of first conductive terminals, wherein the first conductive terminal comprises a fixing portion fixed on the base, and the fixing portion extends forward to the tongue a plate-shaped extending arm of the plate and an elastic extending arm extending rearward from the fixing portion, the plate-shaped extending arm is exposed on the first abutting surface of the tongue plate, and the elastic extending arm is received on the two sides Between the walls; a set of second conductive terminals, the second conductive terminal comprising a fixing portion fixed to the base, a plate-shaped extending arm extending forward from the fixing portion to the tongue plate, and the fixing portion Extending rearwardly, an elastic extension arm of the base is exposed, the plate-shaped extension arm is exposed on the second abutting surface of the tongue plate, and the elastic extension arm is received between the two side walls, wherein the first conductive terminal is in the group Between the elastic extension arm and the elastic extension arm of the second set of conductive terminals An intervening space; a grounded metal piece disposed in the tongue plate and spaced apart from the set of first conductive terminals and the set of second conductive terminals; and an outer shield case fixed to the insulative body, The outer shield housing surrounds the peripheral space of the tongue plate to form a first mating cavity, and the two side walls are covered to form a second docking cavity, wherein the electrical connector further comprises a cover body covered by the outer shield shell One An inner shield housing covering the rear of the tongue and the front surface of the base. The electrical connector of claim 1, wherein the elastic extension arm comprises an elastic segment extending obliquely from the rear end of the fixing portion and a joint portion disposed at an end of the elastic segment, wherein the first portion The elastic segments of the conductive terminals and the elastic segments of the second conductive terminals extend away from each other after being traveled. The electrical connector of claim 2, wherein the elastic extension arm further comprises a lead-in section extending obliquely further rearward from the joint section, wherein the lead-in section of the first conductive terminal and the lead-in section of the second conductive terminal After the trip, they extend away from each other. The electrical connector of claim 1, wherein each of the two sides of the outer shield housing extends laterally with a locking arm, and each of the locking arms is provided with a locking hole. The electrical connector of claim 1, wherein the electrical connector further comprises a locking piece, the locking piece comprising a trunk fixed to the outer shielding shell and two locking bodies located on opposite sides of the main trunk unit. The electrical connector of claim 5, wherein the outer shield housing is formed with a joint seam, the trunk portion being affixed to both sides of the joint seam. The electrical connector according to any one of the preceding claims, wherein the inner side walls of the two sides of the insulating body are each formed with a positioning groove extending in the front-rear direction, and the positioning groove is in the same position as the insertion space. High and connected to each other. The electrical connector of claim 7, wherein the grounding metal piece is provided with a resilient contact arm extending backwardly, the resilient contact arm being located in the positioning slot Inside. The electrical connector of any one of claims 1 to 6, wherein the grounding metal piece comprises a body disposed in the tongue plate and a first connecting portion extending outward from the body, the first The connecting portion protrudes from the tongue plate and is electrically connected to the inner shielding shell. The grounding metal piece is electrically connected to the inner shielding shell and the outer shielding shell. The electrical connector of any one of claims 1 to 6, wherein the grounding metal piece comprises a main body disposed in the tongue plate and two elastic arms extending obliquely outward from opposite sides of the main body, Two resilient arms project from the insulating body and are in contact with the outer shield housing. The electrical connector of any one of claims 1 to 6, wherein the insulative housing is formed by combining a first insulating member and a second insulating member; wherein the set of first conductive terminals are correspondingly fixed to The first insulating member is fixed to the second insulating member, and the grounding metal plate is sandwiched between the first insulating member and the second insulating member. The electrical connector of any one of claims 1 to 6, wherein the set of first conductive terminals and the set of second conductive terminals are vertically disposed opposite each other and are 180 degrees rotationally symmetric. An electrical connector assembly comprising an electrical connector and a circuit board that cooperate with each other, the electrical connector comprising: an insulative housing comprising a base, a tongue extending forwardly from the base, and respectively Two side walls extending rearwardly from opposite sides of the base, the tongue plate having a first abutting surface and a second abutting surface opposite to each other; a set of first conductive terminals, the first conductive terminal comprising a fixing portion fixed on the base, a plate-shaped extending arm extending forward from the fixing portion to the tongue plate, and extending rearward from the fixing portion An elastic extension arm of the base, the plate-shaped extension arm is exposed on the first abutting surface of the tongue plate, the elastic extension arm is received between the two side walls; a set of second conductive terminals, the second conductive terminal The utility model comprises a fixing portion fixed on the base, a plate-shaped extending arm extending forwardly from the fixing portion to the tongue plate, and an elastic extending arm extending rearward from the fixing portion, the plate-shaped extension The arm is exposed on the second abutting surface of the tongue plate, and the elastic extending arm is received between the two side walls, wherein the elastic extending arm of the set of first conductive terminals and the elastic extending arm of the set of second conductive terminals Forming an intervening space; a grounding metal piece disposed in the tongue plate and spaced apart from the set of first conductive terminals and the set of second conductive terminals; and an outer shield case fixed to the insulating body a peripheral space surrounding the tongue plate forming a first docking cavity And covering the two side walls to form a second docking cavity; the circuit board is provided with a plugging portion, the plugging portion has two opposite butting faces, and each of the two mating faces is provided with a set of electrical properties a contact piece, wherein the plug portion of the circuit board is inserted into the insertion space of the second mating cavity of the electrical connector, and the electrical contact pieces on the two mating faces of the plug portion are respectively The elastic extension arm of the first conductive terminal and the elastic extension arm of the set of second conductive terminals are elastically clamped therein and correspondingly The electrical connector further includes an inner shield shell covered by the outer shield shell, the inner shield shell covering the rear portion of the tongue and the front surface of the base. The electrical connector assembly of claim 13, wherein the elastic extension arm comprises an elastic segment extending obliquely from the rear end of the fixing portion and disposed at an end of the elastic segment, wherein the elastic segment The elastic segments of a conductive terminal and the elastic segments of the second conductive terminal extend from each other to the rear. The electrical connector assembly of claim 14, wherein the elastic extension arm further comprises a lead-in section extending obliquely further rearward from the joint segment, wherein the lead-in section of the first conductive terminal and the second conductive terminal are introduced The segments extend away from each other after the heading to guide the insertion portion of the circuit board into the insertion space. The electrical connector assembly of claim 13, wherein a locking arm extends laterally from each side of the outer shielding housing, and each locking arm is provided with a locking hole; the circuit board is inserted in the connector a mounting portion extending forwardly from each side of the portion, a escaping channel is formed between each mounting portion and the plug portion, and each mounting portion is provided with a mounting hole corresponding to the locking hole, the electric The connector is fixed to the circuit board by a fastener corresponding to the mounting hole and the locking hole. The electrical connector assembly of claim 13, wherein the electrical connector further comprises a locking piece, the locking piece comprising a trunk fixed to the outer shielding shell and two locking portions located on opposite sides of the main trunk portion unit. The electrical connector assembly of claim 17, wherein the outer shield is on the outer casing Forming a joint seam, the trunk portion is fixedly coupled to the two sides of the joint seam, and each of the two lock portions is provided with a locking hole; the circuit board is further provided with two sides extending forward from the two sides of the plug portion Two mounting portions are formed, and a escaping channel is formed between each mounting portion and the plug portion, and each mounting portion is provided with a mounting hole corresponding to the locking hole, and the electrical connector is correspondingly disposed Fasteners in the mounting holes and locking holes are secured to the circuit board. The electrical connector assembly of any one of the preceding claims, wherein the inner side walls of the two sides of the insulating body are each formed with a positioning slot extending in the front-rear direction, the two positioning slots and the insertion space At the same height and in communication with each other, the two side edges of the plug portion of the circuit board are positioned. The electrical connector assembly of claim 19, wherein the grounding metal piece is provided with an elastic contact arm extending backwardly, and the elastic contact arm is correspondingly located in the positioning groove and elastically abuts the insertion of the circuit board. The electrical contact of the joint is on the piece. The electrical connector assembly of any one of claims 13 to 18, wherein the grounding metal piece comprises a body and a first connecting portion extending from the body, the first connecting portion extending from the tongue plate The inner shielding shell is electrically connected to the inner shielding shell, and the inner shielding shell and the outer shielding shell are electrically connected. The electrical connector assembly according to any one of claims 13 to 18, wherein the grounding metal piece comprises a main body disposed in the tongue plate and two elastic arms extending obliquely outward from opposite sides of the main body, The two resilient arms project out of the insulating body and are in contact with the outer shield housing. The electrical connector assembly of any one of claims 13 to 18, wherein The set of first conductive terminals and the set of second conductive terminals are vertically disposed opposite each other and are 180 degrees rotationally symmetric. The electrical connector assembly of any one of claims 13 to 18, wherein the insulative housing is formed by combining a first insulating member and a second insulating member; wherein the set of first conductive terminals are correspondingly fixed to the first An insulating member is disposed, and the second conductive terminal is correspondingly fixed to the second insulating member, and the grounding metal piece is sandwiched between the first insulating member and the second insulating member.