TW201911687A - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector. The electrical connector has an insulative housing and a contacting module retained in the insulative housing. The insulative housing has a mating port, a mating room depressing in the mating port, a base port and a receiving room depressing in the base port. The base port has two side walls. The mating port has two side plates. The base port has a number of ribs and a number of recesses between two adjacent said ribs. The electrical connector has a shell covering the mating port. The shell has a side wall against inner wall of one of the recesses.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a high degree of coplanarity.

Electrical connectors are indispensable components in electrical and electronic devices. With the replacement of electrical and electronic devices, electrical connectors have evolved into quite mature products. For electrical connectors, it is necessary to be able to contact stable and reliable, high speed transmission of signals or current. In general, for electrical connectors having double or multiple rows of surface soldered terminal soldering legs, particular attention needs to be paid to the coplanarity of the soldered portions of the entire electrical connector. If the coplanarity of the welded portions is inconsistent, void welding may eventually be formed, so that the electrical connector cannot be reliably and stably conveyed, and the electrical connector after the welding is completed is also difficult to detect.

In view of this, it is necessary to further improve the existing electrical connector to solve the above problems.

It is an object of the present invention to provide an electrical connector that is easy to assemble and has a good coplanarity of the soldered surface.

In order to achieve the above object, the present invention provides an electrical connector including an insulative housing and a terminal module mounted in the insulative housing. The insulative housing is provided with an abutting portion and a main body portion extending rearward from the mating portion, and the abutting portion is provided The main body portion is provided with a receiving space recessed from the front to the rear, and the terminal module includes a first terminal group and a second terminal group matched with the first terminal group, and the first terminal group is provided a first contact portion received in the insertion cavity, the second terminal group is provided with a second contact portion received in the insertion cavity, and the first contact portion and the second contact portion are disposed to face each other vertically, the main body portion Two side walls are disposed on two sides of the receiving space, and the abutting portion is provided with two wall portions on both sides of the insertion cavity, and the main body portion is provided with a plurality of front portions extending from the side walls and attached to the outer side of the wall portion. a ridge and a positioning groove between the two adjacent ribs, the electrical connector further comprising a shielding shell shielded from the abutting portion, the shielding housing is provided with a positioning Positioning groove of said housing side walls.

As a further improvement of the present invention, the at least one wall portion is provided with a recess formed inwardly from the outer surface of the wall portion, and the side wall of the housing is provided with a push arm that is pushed into the groove, and the push arm is The shielding case is fixed to the abutting portion in the front-rear direction.

According to a further improvement of the present invention, the first terminal set includes a first insulating block and a first terminal that is injection molded into the first insulating block, and the first terminal is provided with a first fixing fixed in the first insulating block. And the first contact portion extending forward from the first fixing portion, the second terminal group includes a second insulating block and a second terminal that is injection molded into the second insulating block, and the second terminal is fixed to the second terminal The second fixing portion in the second insulating block and the second contact portion extending forward from the second fixing portion, the first insulating block and the second insulating block are matched and received in the receiving space.

According to a further improvement of the present invention, at least one of the sidewalls is disposed on a side of the receiving space, and a first guiding slot extending in the front-rear direction and a second guiding slot located below the first guiding slot, the first The guiding groove and the second guiding groove are both in communication with the receiving space.

According to a further improvement of the present invention, the first insulating block is provided with a first guiding block that cooperates with the first guiding slot, and the second insulating block is provided with a second guiding unit that cooperates with the second guiding slot. The first terminal group further includes a third insulating block that cooperates with the first insulating block to fix the first terminal, and the third insulating block is provided with a third guiding block, the third guiding block and the foregoing The second guiding block is aligned back and forth along the mating direction of the electrical connector.

As a further improvement of the present invention, the at least one side wall of the main body portion further includes a first holding groove that continues to be recessed from the first guiding groove and penetrates the at least one side wall, and the first insulating block is further provided from the foregoing The first guiding block continues to protrude outwardly from the first protrusion, and the first protrusion cooperates with the first holding groove to fix the first insulating block in the receiving space.

According to a further improvement of the present invention, the main body portion further includes a second holding groove that continues to be recessed from the second guiding groove and penetrates the at least one side wall, and a third holding groove that is located at a rear side of the second holding groove, The first holding groove and the second holding groove are vertically aligned in the thickness direction of the electrical connector.

As a further improvement of the present invention, the second insulating block is further provided with a second protrusion that continuously protrudes outward from the second guiding block, and the second protruding block cooperates with the second holding groove to cooperate with the second insulating block. The third insulating block is fixed in the accommodating space, and the third insulating block is provided with a third protruding block that protrudes outward from the third guiding block, and the third protruding block cooperates with the third holding groove to fix the third insulating block. In the aforementioned containment space.

As a further improvement of the present invention, the second insulating block is further provided with a second protruding rib protruding upward and extending from the rear to the top of the second guiding block, and the third insulating block is in the third guiding block The top portion is provided with a third rib protruding upward and aligned with the second rib, and the second rib and the third rib abut against the top wall of the second guiding groove.

According to a further improvement of the present invention, the first insulating block is provided with a first bottom surface located at the bottom portion and a first protruding portion extending downward from the first bottom surface, and the second insulating block is provided to abut the first bottom surface a second top surface, a second bottom surface opposite to the second top surface, and a fastening cavity formed in the second top surface to be fixedly coupled with the first protruding portion, the fastening cavity extending through the second insulation backward Piece.

Compared with the prior art, the electrical connector of the present invention is provided with a rib on the wall portion of the insulating body and a positioning groove formed between the ribs to fix the shielding shell to the insulating body, so that the shielding shell of the electrical connector A fixed fit is achieved in the mating direction with the insulating body, and the shielding housing does not affect the electrical connector in the up and down direction, thereby facilitating the installation of the electrical connector.

Referring to FIG. 1 to FIG. 6 , an electrical connector 100 includes an insulative housing 1 , a terminal module (not labeled) mounted in the insulative housing 1 , and a shielding housing that is shielded from the insulative housing 1 . 4.

The insulative housing 1 is provided with an abutting portion 11 and a main body portion 12 extending rearward from the abutting portion 11 and integrally formed with the abutting portion 11. The mating portion 11 is provided with a mating surface 111 at the foremost end, a plug cavity 110 recessed rearward from the mating surface 111, a bottom plate 112 at the bottom of the plug cavity 110, a top plate 113 at the top of the plug cavity 110, and upper and lower connections. The bottom plate 112 and the two wall portions 114 of the aforementioned top plate 113. The top plate 113 is provided with a plurality of terminal receiving grooves 115 recessed from the bottom, and the bottom plate 112 is provided with a plurality of terminal receiving grooves 115 recessed from top to bottom, and the terminal receiving grooves 115 on the top plate 113 are as described above. The next one of the terminal receiving grooves 115 on the bottom plate 112 is opposite to each other. The two wall portions 114 are located at two sides of the insertion cavity 110, and the front ends of each of the wall portions 114 are respectively provided with two guiding surfaces 1101 extending obliquely from the insertion surface 111, so that the external docking connector is convenient. Insertion (not shown). Each of the aforementioned wall portions 114 is provided with a recess 1141 recessed from the outer side toward the one end of the mating surface 111, and each of the recesses 1141 extends through the bottom plate 112 in the up and down direction.

The main body portion 12 is provided with a receiving space 120 recessed from the rear and the front, two side walls 121 on the two sides of the receiving space 120, a top wall 122 at the top of the receiving space 120, and a bottom wall 123 at the bottom of the receiving space 120. A plurality of ribs 1211 attached to the two wall portions 114 of the abutting portion 11 and a plurality of positioning grooves 1212 located between the adjacent two ribs 1211 in the up and down direction are extended forward from each of the side walls 121. The bottom wall 123 and the bottom plate 112 are integrally formed in front and rear, and the bottom surface of the bottom wall 123 is flush with the bottom surface of the bottom plate 112. As shown in the third figure, the top surface of the top wall 122 is higher than the top surface of the top plate 113, and a stepped abutting portion 116 is formed at the junction of the top wall 122 and the top plate 113. A rearward portion of the bottom wall 123 is vertically formed to form a accommodating space 124, and the accommodating space 124 communicates with the accommodating space 120. The bottom wall 123 is provided with two through holes 125 penetrating vertically in front of the bottom plate 112.

Each of the two side walls 121 is provided with a first guiding groove 1213 extending in the front-rear direction, a second guiding groove 1214 located below the first guiding groove 1213, and along a side of the receiving space 120. The partition portion 1215 that partitions the first guiding groove 1213 from the second guiding groove 1214 in the up-and-down direction. The first guiding groove 1213 and the second guiding groove 1214 are both in communication with the receiving space 120 along the width direction of the electrical connector 100. The first guiding groove 1213 and the second guiding groove 1214 penetrate through the sidewall 121 from the front to the rear. Each of the sidewalls 121 further includes a first retaining slot 1216 that is recessed from the first guiding slot 1213 and extends through the sidewall 121. The second guiding slot 1214 continues to be recessed outwardly and extends through the sidewall 121. The second holding groove 1217 and the third holding groove 1218 are located on the rear side of the second holding groove 1217 in the front-rear direction and are aligned in the front-rear direction. The first holding groove 1216 and the second holding groove 1217 are vertically aligned in the thickness direction of the electrical connector 100.

The terminal module includes a first terminal set 2 and a second terminal set 3 mated with the first terminal set 2. The first terminal group 2 includes a first insulating block 21, a third insulating block 22, and a plurality of first terminals 23 that are injection molded into the first insulating block 21 and the third insulating block 22. The aforementioned first insulating block 21 is provided separately from the aforementioned third insulating block 22. Each of the first terminals 23 is provided with a first fixing portion (not labeled) fixed in the first insulating block 21, and extends forward from the first fixing portion and is received in the terminal receiving groove 115 of the abutting portion. The first contact portion 231 , the first bent portion 232 extending rearward from the first fixing portion and extending downwardly, continuing downwardly from the first bent portion 232 and overmolded and formed on the third insulating block 22 The third fixing portion (not labeled) and the first welding portion 233 extending downward from the third fixing portion beyond the bottom of the first insulating block 21 and continuing to extend rearward. The first contact portion 231 is provided with a first abutting surface 2311 that is protruded downwardly from the insertion cavity 110.

The first insulating block 21 is provided with a first main body portion 210 received in the receiving space 120, and two first protruding from the two sides of the first main body portion 210 and received in the first guiding groove 1213. a guiding block 211, a first top surface 2101 opposite to the bottom surface of the top wall 122 at the top of the first body portion 210, a first bottom surface 2102 at the bottom of the first body portion 210, and a first bottom surface 2102 The three first protrusions 2103 are formed to protrude downward. The first guiding block 211 is further provided with a first protrusion 2111 protruding outward from the outer side of the first guiding block 211 along the width direction of the electrical connector 100, and the first protrusion 2111 is located in the first guiding At the rear end of the lead block 211, the first bump 2111 and the first holding groove 1216 cooperate to fix the first insulating block 21 in the receiving space 120.

The third insulating block 22 is provided with a third main body portion 220 received in the accommodating space 120, and two of the second main body portions 220 that protrude outward from the two sides of the third main body portion 220 and are received in the second guiding groove 1214. The third guiding block 221. The third guiding block 221 is further provided with a third protrusion 2211 protruding outward from the outer side surface of the third guiding block 221 in the width direction of the electrical connector 100 and protruding upward from the top of the third guiding block 221 Third rib 2212. The third protrusion 2211 is located at the rear end of the third guiding block 221, and the third protrusion 2211 and the third holding groove 1218 cooperate to fix the third insulating block 22 in the receiving space 120.

The second terminal group 3 includes a second insulating block 31 and a second terminal 32 that is injection molded into the second insulating block 31. The second terminal 32 is provided with a second fixing portion (not labeled) fixed in the second insulating block 31, and a second contact extending forward from the second fixing portion and received in the terminal receiving groove 115 of the bottom plate 112. The portion 321 and the second welded portion 322 extending downward from the bottom of the second insulating block 31 and extending rearward from the second fixing portion. The second contact portion 321 is provided with a second abutting surface 3211 which is protruded upwardly and exposed in the insertion cavity 110.

The second insulating block 31 is provided with a second main body portion 310 housed in the accommodating space 120, and two second portions protruding outward from the second main body portion 310 and housed in the second guiding groove 1214. a second guiding block 311, a second top surface 3101 at the top of the second body portion 310 and a second bottom surface 3102 at the bottom of the second body portion 310, and a second bottom surface 3101 from the second top surface 3101. The recess is formed with a fastening cavity 3103 that is fixed to the first protruding portion 2103, and the fastening cavity 3103 penetrates the second insulating block 31 rearward. The second guiding block 311 is further provided with a second protrusion 3111 protruding outward from the outer side surface of the second guiding block 311 in the width direction of the electrical connector 100 and protruding upward from the top of the second guiding block 311. And a second rib 3112 extending from the back to the front. The second bump 3111 is located at the rear end of the second guiding block 311, and the second bump 3111 and the second holding groove 1217 cooperate to fix the second insulating block 31 in the receiving space 120. The second insulating block 31 is further provided with two second protruding portions 3104 protruding downward from the second bottom surface 3102, and the second protruding portion 3104 is matched with the two through holes 125 on the bottom wall 123 of the main body portion 12. fixed.

When the first terminal group 2 and the second terminal group 3 are mounted in the insulative housing 1 , the second terminal block 3 is first mounted from the rear to the front into the receiving space 120 , and the second guiding block 311 is Sliding forward and backward in the second guiding groove 1214 until the second contact portion 321 of the second terminal 32 is received in the terminal receiving groove 115 in the bottom plate 112, and the second protrusion 3111 is fastened. In the second holding groove 1217, when the second protruding portion 3104 is fastened in the through hole 125, the second terminal group 3 and the insulating body 1 are fixed. The first terminal block 2 is then mounted from the rear to the front into the accommodating space 120. The first guiding block 211 slides forward and backward in the first guiding slot 1213, and the third guiding block 221 is slid forward. Sliding forward and backward in the second guiding slot 1214, until the first contact portion 231 of the first terminal 23 is received in the terminal receiving groove 115 of the top plate 113, and the first protrusion 2111 is fastened. In the first holding groove 1216, the third protrusion 2211 is fastened in the third holding groove 1218, and the first protruding portion 2103 is received in the fastening cavity 3103 from the back to the front. The block 21 and the second insulating block 31 are vertically and horizontally received in the accommodating space 120, and the first contact portion 231 and the second contact portion 321 are vertically received in the terminal accommodating groove 115, and the first abutting surface 2311 and the aforementioned second abutting surface 3211 are exposed in the upper and lower opposite sides of the insertion cavity 110. The second guiding block 311 and the third guiding block 221 are aligned in the front-rear direction, so that the first terminal group 2 and the second terminal group 3 are assembled more precisely. The second rib 3112 and the third rib 2212 are in contact with the top wall of the second guiding groove 1214, that is, abutting the partition 1215, and are disposed to reduce the second insulating block 31 and the third The insulating block 22 is assembled with the insulating body 1 in a gap.

The shielding case 4 is shielded on the abutting portion 11 of the insulative housing 1 . The shielding housing 4 is provided with a housing top wall 41, a housing sidewall 42 bent downward from the left and right sides of the housing top wall 41, and a housing sidewall 41 and the two housing sidewalls 42. The insertion space 40 and the abutment wall 43 over the top plate 113 of the abutting portion 11 extend rearward from the top wall 41 of the casing. The housing side wall 42 is provided with a card arm 421 extending rearwardly and positioned in the positioning slot 1212, a plurality of barbs 4211 located at the side edge of the card arm 421, and a bottom portion of the housing side wall 42 pushing against the groove 1141 The push arm 422 is formed by tearing from the lower edge of the side wall 42 of the casing, and is provided with a connecting portion 4221 connected to the side wall 42 of the casing and along the electrical connector 100 from the connecting portion 421. The abutting portion 4222 is inwardly retracted in the width direction. The barbs 4211 of the card arm 421 and the inner wall of the positioning groove 1212 interfere with each other to form a positioning. The elastically abutting portion 4222 of the pusher arm 422 abuts against the inner wall of the recess 1141 to fix the shield housing 4 to the insulative housing 1 in the front-rear direction. In this way, the shielding housing 4 does not need to pass the force in the up and down direction, and a relative fixing to the insulating body 1 can be achieved only by the front-rear direction. In addition, the shielding case 4 does not need to be provided with a fastening arm that is engaged with the insulative housing 1 at the bottom, so that when the electrical connector 100 is soldered to a circuit board (not shown), only the first one needs to be adjusted. The first soldering portion 233 of the terminal 23 and the second soldering portion 322 of the second terminal 32 are coplanar to ensure that the electrical connector 100 has a good coplanarity, thereby ensuring stable soldering of the electrical connector 100. Will form an empty weld. The end edge of the pushing wall 43 is pushed against the abutting portion 116 where the top wall 122 and the top plate 113 are joined.

Thus, the electrical connector 100 of the present invention fixes the shielding case 4 to the insulative housing 1 by providing the protruding strip 1211 on the wall portion 114 of the insulative housing 1 and the positioning slot 1212 formed between the protruding strips 1211, so that the electrical connector The shielded housing of the 4100 and the insulative housing 1 achieve a fixed fit in the mating direction, and the shield housing 4 does not affect the electrical connector 100 in the up and down direction, so that the soldered portion of the electrical connector 100 has a better total. The face is made, so that the electrical connector 100 is conveniently installed.

The terms "upper", "lower", "left", "right", "front", "rear", and the like, as used herein, are used to describe the relative position of the space for illustrative purposes as illustrated in the accompanying drawings. The relationship of one feature to another. It is to be understood that the terms of the relative position of the space may be intended to include different orientations than those shown in the drawings, and should not be construed as limiting the claim. In addition, the descriptor "horizontal" as used herein is not exactly equivalent to being perpendicular to the direction of gravity, allowing for an angled tilt.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧Docking Department

110‧‧‧plug cavity

1101‧‧‧ Guide surface

111‧‧‧Interface

112‧‧‧floor

113‧‧‧ top board

  114‧‧‧ wall

1141‧‧‧ Groove

115‧‧‧Terminal receiving slot

116‧‧‧Apartment

12‧‧‧ Main body

120‧‧‧ accommodating space

  121‧‧‧ side wall

1211‧‧‧ ribs

1212‧‧‧ positioning slot

1213‧‧‧First guiding slot

1214‧‧‧Second guiding slot

1215‧‧‧Departure

1216‧‧‧First holding slot

  1217‧‧‧Second holding groove

1218‧‧‧3rd holding groove

122‧‧‧ top wall

  123‧‧‧ bottom wall

  124‧‧‧Let the space

125‧‧‧Perforation

2‧‧‧First terminal group

  21‧‧‧First insulating block

210‧‧‧First Body Department

2101‧‧‧First top surface

2102‧‧‧ first bottom surface

2103‧‧‧First protrusion

211‧‧‧First guide block

2111‧‧‧First bump

22‧‧‧ Third insulating block

220‧‧‧ Third Body Department

221‧‧‧ third guiding block

2211‧‧‧3rd bump

2212‧‧‧3rd rib

23‧‧‧First terminal

231‧‧‧First contact

232‧‧‧First bend

233‧‧‧First Welding Department

2311‧‧‧First abutment

3‧‧‧Second terminal group

31‧‧‧Second insulation block

310‧‧‧Second body

3101‧‧‧Second top

3102‧‧‧second bottom surface

3103‧‧‧Closed cavity

3104‧‧‧Second protrusion

311‧‧‧Second guiding block

3111‧‧‧second bump

3112‧‧‧second rib

32‧‧‧second terminal

321‧‧‧Second contact

3211‧‧‧second abutment

322‧‧‧Second Welding Department

  4‧‧‧Shaded housing

40‧‧‧Dock space

41‧‧‧The top wall of the casing

42‧‧‧Sheet side wall

421‧‧‧ card arm

4211‧‧‧ barbed

422‧‧‧ Push arm

The first figure is a perspective view of the electrical connector of the present invention. The second figure is a perspective view of another angle of the electrical connector of the present invention. The third figure is a perspective exploded view of a portion of the electrical connector of the present invention. The fourth figure is a partially exploded perspective view of another angle of the electrical connector of the present invention. The fifth figure is a perspective exploded view of the electrical connector of the present invention. Figure 6 is a perspective exploded view of another angle of the electrical connector of the present invention.

Claims (10)

An electrical connector includes an insulative housing and a terminal module mounted in the insulative housing, the insulative housing is provided with an abutting portion and a main body portion extending rearward from the butting portion, and the abutting portion is provided with a plugging cavity recessed from the front to the rear, the main body The terminal module includes a first terminal group and a second terminal group that cooperates with the first terminal group, and the first terminal group is provided in the socket cavity. a contact portion, the second terminal group is provided with a second contact portion received in the insertion cavity, wherein the first contact portion and the second contact portion are disposed to face each other; wherein the main body portion is provided in the receiving space Two side walls of the side, the abutting portion is provided with two wall portions on both sides of the insertion cavity, and the main body portion is provided with a plurality of ribs extending forward from the side wall and attached to the outer side of the wall portion and located adjacent to each other The positioning connector between the ridges, the electrical connector further includes a shielding shell that is shielded from the abutting portion, and the shielding housing is provided with a sidewall of the housing positioned in the positioning slot The electrical connector of claim 1, wherein the at least one wall portion is provided with a recess formed inwardly from an outer surface of the wall portion, and the side wall of the housing is provided to be pushed into the recess. The push arm is configured to fix the shielding case to the mating portion in the front-rear direction. The electrical connector of claim 1, wherein the first terminal set includes a first insulating block and a first terminal that is injection molded into the first insulating block, and the first terminal is fixed to the foregoing a first fixing portion in an insulating block and the first contact portion extending forward from the first fixing portion, the second terminal group includes a second insulating block and a second terminal that is injection molded into the second insulating block, The second terminal is provided with a second fixing portion fixed in the second insulating block and the second connecting portion extending forward from the second fixing portion, and the first insulating block is matched with the second insulating block and received In the aforementioned containment space. The electrical connector of claim 2, wherein at least one of the sidewalls is disposed on a side of the receiving space, and a first guiding slot extending in a front-rear direction and a second portion below the first guiding slot The two guiding grooves, the first guiding groove and the second guiding groove are all connected to the receiving space. The electrical connector of claim 4, wherein the first insulating block is provided with a first guiding block that cooperates with the first guiding groove, and the second insulating block is provided with the second guiding The first guiding block is matched with the second guiding block, wherein the first terminal group is further provided with a third insulating block which is matched with the first insulating block to fix the first terminal, and the third insulating block is provided with a third guiding block. The third guiding block and the second guiding block are aligned back and forth along the abutting direction of the electrical connector. The electrical connector of claim 5, wherein the at least one side wall of the main body portion further has a first holding groove that continues to be recessed from the first guiding groove and penetrates the at least one side wall, the foregoing An insulating block is further provided with a first protrusion that continuously protrudes outward from the first guiding block, and the first protrusion cooperates with the first holding groove to fix the first insulating block in the receiving space. The electrical connector of claim 6, wherein the main body portion is further provided with a second holding groove that continues to be recessed from the second guiding groove and penetrates the at least one side wall, and is located behind the second holding groove The third holding groove on the side, the first holding groove and the second holding groove are vertically aligned in the thickness direction of the electrical connector. The electrical connector of claim 7, wherein the second insulating block further comprises a second protrusion extending outward from the second guiding block, the second protruding block and the second holding groove Cooperating and fixing the second insulating block in the receiving space, the third insulating block is provided with a third protruding block that protrudes outward from the third guiding block, and the third protruding block and the third holding groove The third insulating block is fixed in the receiving space. The electrical connector of claim 8, wherein the second insulating block is further provided with a second protruding rib protruding upwardly from the rear to the top of the second guiding block, the third insulating The block is provided with a third rib protruding upwardly and aligning with the second rib at the top of the third guiding block, and the second rib, the third rib and the top wall of the second guiding groove Close to each other. The electrical connector of claim 3, wherein the first insulating block is provided with a first bottom surface at the bottom and a first protruding portion extending downward from the first bottom surface, and the second insulating block is provided. a second top surface abutting the first bottom surface, a second bottom surface opposite to the second top surface, and a fastening cavity formed to be recessed from the second top surface to be fixedly coupled to the first protruding portion, the buckle The cavity merges through the aforementioned second insulating block.