TW201834325A - Electrical connector - Google Patents

Abstract

An electrical connector includes an insulative housing, two arrays of terminals retained in the housing, and a shielding shell attached to the housing and forming a cavity therebetween. The housing has a base portion and a tongue portion extending forwardly from the base portion. The shielding shell has a resisting wall extending from an inner wall thereof to the cavity. The tongue portion extends from the resisting wall and forms a mating room with the cavity. The electrical connector has a sheet affixed to the resisting wall and confining the housing to avoid rearward movement.

Description

Electric connector

The invention relates to an electrical connector, in particular to a positive and negative plug connector.

With reference to Taiwan Invention Patent No. TWI549388, a socket connector capable of plugging in both directions is disclosed. The electrical connector includes an upper-stage contact-embedded part, a body-molded part, a contact part fixed on the upper-stage contact-embedded part and the body-formed part, and a casing sleeved on the outside. The rear end of the electrical connector is also provided with a rear shield. The back shield is inserted into the body molding part or welded to the casing.

However, most of the above rear guards are mechanically connected and fixed to the outer side or surface of the electrical connector housing, which has a poor stopping and positioning effect and does not have aesthetics.

Therefore, in view of the above problems, it is really necessary to provide a new electrical connector to solve the above problems.

The object to be achieved by the present invention is to provide an electrical connector capable of effectively stopping positioning and being beautiful.

In order to solve the above technical problems, the present invention provides an electrical connector, which includes an insulating body, a conductive terminal provided on the insulating body, and a shielding case sleeved on the insulating body and forming a receiving space. The insulating body A base plate and a tongue plate extending forward from the base are provided. A stop wall is protruded from the inner wall of the shielding case toward the accommodation space. The accommodating space constitutes a docking cavity, and the electrical connector further includes a fixing plate fixed to the stop wall to restrict backward movement of the insulating body.

Further, the retaining wall includes an annular wall and a retaining block located behind the annular wall and protruding further toward the receiving space than the annular wall, and the first retaining wall blocks the forward movement of the insulating body. The fixing plate is fixed on the holding block to prevent the insulating body from moving backward.

Further, the stop wall further includes a plurality of partition walls provided between the annular walls, the partition walls are located behind the base portion, and the middle portion of the fixing plate is fixed on the partition wall.

Further, the stop wall further includes a protrusion provided between the annular walls, a groove is fixed on the insulation body to engage with the protrusion, and a middle portion of the fixing plate is fixed to the protrusion. on.

Further, the fixing plate is formed in an elongated shape extending in a transverse direction, and has a width formed in a vertical direction and a thickness formed in a docking direction, and the width of the fixing plate is larger than the thickness.

Further, the fixing plate has positioning pieces formed by bending and extending downward on both sides, and the positioning pieces are fixed on the holding block.

Further, the rear end of the electrical connector further has a glue wall surrounding the rear end of the insulating body, and the glue wall is wrapped inside the fixing plate.

Further, the fixing plate is fixed on the stop wall by electric welding.

Further, the stop wall is arranged in a ring shape and has a certain thickness, so that the base portion is abutted and positioned behind the stop wall.

Further, the conductive terminal includes a widened terminal, the widened terminal includes a contact portion and a widened portion laterally connected to the contact portion and embedded in the tongue plate, and the contact portion of the widened terminal is far from the center of the tongue plate A step is formed between the top surface of the top surface and its top surface away from the center of the tongue plate.

Compared with the prior art, the present invention has at least the following beneficial effects: The electrical connector of the present invention is fixed on the retaining wall of the shielding case by spot welding on the inner fixed plate to enhance the structural strength of the electrical connector and prevent insulation The main body retracts and falls out of the shielding case during assembly or use. The fixing plate is arranged inside the shielding shell and covered by a glue wall, and has certain aesthetics.

Hereinafter, a first embodiment of the electrical connector 100 of the present invention will be described with reference to the first to ninth drawings. The port through which the electrical connector 100 and the plug connector are plugged is defined as a plug end. A docking direction, a transverse direction, and a vertical direction perpendicular to the docking direction and the transverse direction are defined, and the plane where the docking direction and the transverse direction are located constitutes a horizontal plane.

Please refer to the first to ninth drawings. The electrical connector 100 of the present invention includes an insulating body 1, a conductive terminal 2 and a reinforcing member 3 fixed in the insulating body 1, and a shielding case 4 covering the outside of the insulating body 1. A waterproof gasket 5 sleeved at the port of the shielding case 4, a fixing plate 6 provided at the rear end of the shielding case 4, and a glue wall 7 formed at the rear end of the insulating body 1.

Please refer to FIG. 6 to FIG. 8, the insulating body 1 includes an insulating member 11 and an insulating block 12 overmolded on the insulating member 11. The insulating member 11 includes a base 111 and a tongue plate 112 extending forward from the base 111. The base 111 includes a pair of boss portions 113 horizontally extended from both sides rearward, and a groove 114 provided in the middle portion and penetrating back and forth. A receiving groove 115 is formed on the inner side of the boss portion 113 and extends along the butting direction. The insulation block 12 fills the gap on the insulation member 11 and forms inwardly recessed retaining grooves 13 on both sides to enable the docking connector to be clamped and fixed.

The conductive terminal 2 includes a first terminal 21 and a second terminal 22 fixed on the insulating member 11. The first terminals 21 and the second terminals 22 are symmetrically distributed along a central axis extending forward and backward, and each includes four power terminals protruding forward and three terminals positioned later. The two power terminals on both sides are ground terminals 23, and the two power terminals adjacent to the two ground terminals 23 are power terminals 24. The three terminals located later include two low-speed differential terminals in the center and one control terminal provided on one side of the pair of differential terminals. The first contact portion 211 of the first terminal 21 and the second contact portion 221 of the second terminal 22 are arranged up and down, and the first soldering portion 212 of the first terminal 21 and the second soldering portion 222 of the second terminal 22 They are located in the same plane. Therefore, no matter whether the docking connector is inserted in the forward or reverse direction, the first contact portion 211 and the second contact portion 221 of the electrical connector 100 and the corresponding contact portion of the docking connector can be correctly and alignedly electrically connected.

The first terminal 21 includes a first contact portion 211 exposing the upper surface of the tongue plate 112 and a first soldering portion 212 extending outward from the bottom of the base 111 of the insulating body 1. The second terminal 22 includes a second contact portion 221 exposing a lower surface of the tongue plate 112 and a second soldering portion 222 extending from the insulating body 1. The ground terminal 23 and the power terminal 24 in the conductive terminal 2 are both wide terminals. The widened terminal further includes a widened portion 25 laterally connected to the first contact portion 211 or the second contact portion 221 and embedded in the tongue plate 112. A step 26 is formed between the top surface of the first contact portion 211 or the second contact portion 221 of the widened terminal far from the center of the tongue plate 112 and the top surface of the widened portion 25 far from the center of the tongue plate 112. No slot is formed between the first contact portion 211 or the second contact portion 221 of the widened terminal and the widened portion 25, and the cross-sections of the two are substantially Z-shaped. The thickness of the widened portion 25 of the widened terminal is smaller than the thickness of the first contact portion 211 or the second contact portion 221. The sum of the widths of the first contact portion 211 or the second contact portion 221 of the widened terminal and the widened portion 25 is larger than that of the other terminals. The widened portions 25 of the first terminal 21 and the second terminal 22 are stacked on top of each other and come into contact.

Referring to FIG. 7 and FIG. 8, the reinforcing members 3 are provided as a pair separated from each other, and are disposed on both sides of the insulating body 1. The reinforcing member 3 has a first support portion 31 provided in the insulating body 1, a second support portion 32 extending rearward from the first support portion 31 and housed in the boss portion 113 of the insulating body 1, and a self-supporting portion. The second supporting portion 32 is a fixed leg 33 formed by bending and extending downward. The second supporting portion 32 is provided near the fixed leg 33 with an arc-shaped side edge 34 formed by being bent downward and received in the boss portion 113 to enhance the holding force and structural strength of the reinforcing member 3. Referring to FIG. 6, the second supporting portion 32 of the reinforcing member 3 is inserted into the receiving groove 115 of the insulating body 1, and the inner edge of the second supporting portion 32 is exposed from the receiving groove 115.

Referring to the first to sixth and ninth figures, the shielding case 4 includes a first cylindrical portion 41 at the front end, a second cylindrical portion 42 connected to the first cylindrical portion 41, and The first cylindrical portion 41 extends horizontally to both sides and is formed on a wing portion 43 on a circuit board. The first cylindrical portion 41 is in the shape of an elliptic cylinder, and constitutes a first receiving space 410. The second cylindrical portion 42 has a rectangular parallelepiped shape, and constitutes a second storage space 420 penetrating the first storage space 410. A front end of the first cylindrical portion 41 is defined as a front port, a rear end of the second cylindrical portion 42 is defined as a rear port, and the front port is smaller than the rear port. A stop wall 44 extending vertically is provided at an intersection of the first cylindrical portion 41 and the second cylindrical portion 42. The retaining wall 44 has a certain wall thickness, extends from a middle portion of the second cylindrical portion 42 to an intersection of the second cylindrical portion 42 and the first cylindrical portion 41, and separates the first receiving portion. Space 410 and a second containment space 420. The stop wall 44 has a ring-shaped wall 421 provided in a semi-ring shape on both sides in the transverse direction. A bump 422 is provided in the upper wall of the second cylindrical portion 42 to be engaged with the groove 114 of the insulating body 1. The protrusion 422 can also be seen as a part of the stop wall 44. The retaining wall 44 further includes a retaining block 424 protruding rearwardly from the annular wall 421. The base 111 of the insulating body 1 is stopped at the rear end of the stop wall 44 and is received in the second cylindrical portion 42, so that the tongue plate 112 is received in the first cylindrical portion 41. A pair of side walls of the second cylindrical portion 42 extends backward to form a clamping leg 45. The first accommodating space 410 and the second accommodating space 420 together constitute a accommodating space formed by the shielding case 4 surrounding the insulating body 1.

The waterproof gasket 5 is annular and is sleeved on the front port of the shielding case 4. The waterproof washer 5 has a smooth inner surface and a plurality of convex ribs protruding from the outer surface to interfere with the mating connector to enhance the waterproof effect.

Referring to the second to sixth figures and the ninth figure, the fixing plate 6 is vertically disposed and accommodated in the second cylindrical portion 42 of the shielding case 4, and the fixing plate 6 has The extended positioning portion 61 and the positioning pieces 62 are formed by bending and extending downward from both ends of the positioning portion 61. The positioning portion 61 is fixed on the bump 422 of the shielding case 4 by spot welding, and the positioning piece 62 is fixed on the holding block 424 of the shielding case 4 by spot welding to enhance the structural strength of the electrical connector 100. At the same time, the insulating body 1 is prevented from falling back and falling out of the shielding case 4 during assembly or use.

Referring to the first to sixth figures and the ninth figure, the glue wall 7 is formed by potting after the insulating body 1 is filled with a second cylindrical portion 42 and the fixing plate 6 is wrapped therein. Furthermore, a gap between the base 111 of the insulating body 1 and the shielding case 4 is sealed.

Referring to the tenth to eleventh figures, in the second embodiment, the electrical connector 100 ′ is basically the same as the electrical connector 100 except for the fixing plate 6 ′ and the stop provided in the shielding case 4. Wall 44 '. The fixing plate 6 'is formed to extend in the transverse direction and is vertically disposed and received in the second cylindrical portion 42 of the shielding case 4. The stop wall 44 'has a half-ring-shaped annular wall 421' provided on both sides in the transverse direction and a plurality of partition walls 423 'provided between the annular walls 421'. The fixing plate 6 ′ is fixed to the holding block 424 of the shielding case 4 by spot welding, and the two sides are fixed to the partition wall 423 ′ to enhance the structural strength of the electrical connector 100 and prevent the insulating body 1 from being assembled or used Retreat in the middle and fall out of the shielding case 4. Glue wall 7 is formed after the insulating body 1 is filled and filled with the second cylindrical portion 42 and the fixing plate 6 ′ is wrapped therein, thereby sealing the base 111 and the shielding case of the insulating body 1. The gap between 4.

The above description is only part of the embodiments of the present invention, not all of the embodiments. Any equivalent changes to the technical solutions of the present invention by those skilled in the art by reading the description of the present invention are covered by the claims of the present invention. .

100‧‧‧electrical connector

1‧‧‧Insulated body

11‧‧‧ Insulation

111‧‧‧ base

112‧‧‧ Tongue Plate

113‧‧‧ Boss

114‧‧‧Groove

115‧‧‧Container

12‧‧‧ Insulation Block

13‧‧‧holding slot

2‧‧‧ conductive terminals

21‧‧‧First terminal

211‧‧‧First contact

212‧‧‧The first welding department

22‧‧‧Second Terminal

221‧‧‧Second contact section

222‧‧‧Second welding section

23‧‧‧ ground terminal

24‧‧‧Power Terminal

25‧‧‧ Widened

26‧‧‧ steps

3‧‧‧ reinforcement

31‧‧‧first support

32‧‧‧second support

33‧‧‧Fixed feet

4‧‧‧ shielding shell

41‧‧‧First cylindrical section

410‧‧‧First Containment Space

42‧‧‧Second cylindrical part

420‧‧‧Second Containment Space

421, 421’‧‧‧ annular wall

422‧‧‧ bump

423’‧‧‧ partition wall

424‧‧‧holding block

43‧‧‧wing

44, 44 ’‧‧‧ stop wall

5‧‧‧Waterproof washer

6,6’‧‧‧Fixing plate

61‧‧‧Positioning Department

62‧‧‧ Positioning film

7‧‧‧ glue wall

The first figure is a perspective assembled view of the first embodiment of the electrical connector of the present invention.

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

The third figure is an exploded perspective view of a part of the electrical connector according to the first embodiment of the present invention.

The fourth figure is a third exploded view of the third figure in which the fixing plate is further taken out.

The fifth figure is a partially exploded view of the first figure.

The sixth figure is a partially exploded view of the fifth figure viewed from another direction.

The seventh figure is an exploded perspective view of an insulating body and a conductive terminal of the first embodiment of the electrical connector of the present invention.

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

The ninth figure is a sectional view of the first embodiment of the electrical connector of the present invention, taken along the line IX-IX of the first figure.

The tenth figure is a partially exploded view of a glue wall taken out of the second embodiment of the electrical connector of the present invention.

The eleventh figure is an exploded perspective view of the tenth figure in which the fixing plate is further taken out.

no

Claims (10)

An electrical connector includes an insulating body, a conductive terminal provided on the insulating body, and a shielding case sleeved on the insulating body and forming a receiving space. The insulating body has a base and a direction from the base. A tongue plate formed in a front extension, wherein an inner wall of the shielding case protrudes to a receiving space with a stop wall, and the tongue plate protrudes from the stop wall to form a docking cavity with the receiving space. The electrical connector further includes a fixing plate fixed on the stop wall and restricting backward movement of the insulating body. The electrical connector according to item 1 of the scope of patent application, wherein the stop wall comprises an annular wall and a retaining block located behind the annular wall and further protruding to the receiving space than the annular wall, the stop The wall blocks the insulating body from moving forward, and the fixing plate is fixed to the holding block to block the insulating body from moving backward. The electrical connector according to item 2 of the patent application scope, wherein the stop wall further comprises a plurality of partition walls provided between the annular walls, the partition walls are located behind the base portion, and the middle portion of the fixing plate is fixed at On the partition wall. The electrical connector according to item 2 of the scope of patent application, wherein the stop wall further includes a protrusion provided between the annular walls, and the insulating body is provided with a groove that is fixedly engaged with the protrusion. The middle part of the fixing plate is fixed on the bump. The electrical connector according to item 2 of the scope of patent application, wherein the fixing plate is formed in an elongated shape in a transverse direction, and has a width formed in a vertical direction and a thickness formed in a butting direction. The plate width is larger than the thickness. The electrical connector according to item 5 of the scope of patent application, wherein the fixing plate has positioning pieces formed by bending and extending downward on both sides, and the positioning pieces are fixed on the holding block. The electrical connector according to item 1 of the scope of the patent application, wherein the rear end of the electrical connector further has a glue wall covering the rear end of the insulating body, and the glue wall wraps the fixing plate therein. The electrical connector according to item 1 of the scope of patent application, wherein the fixing plate is fixed on the stop wall by electric welding. The electrical connector according to item 1 of the scope of patent application, wherein the stop wall is arranged in a ring shape and has a certain thickness, so that the base portion is abutted and positioned behind the stop wall. The electrical connector according to item 9 of the scope of patent application, wherein the conductive terminal includes a widened terminal, and the widened terminal includes a contact portion and a widened connection laterally connected to the contact portion and embedded in the tongue plate. A step is formed between the top surface of the contact portion of the widened terminal far from the center of the tongue plate and the top surface of the widened portion far from the center of the tongue plate.