TW201719980A - Electrical connector - Google Patents

Abstract

An electrical connector comprises an insulative housing, a plurality of contacts retained in the insulative housing, a shield blade and a metal cover. The insulative housing comprises a base portion and a tongue portion. The base portion comprises a plurality of grooves on the front surface of the base portion. The metal cover comprises a plurality of stopper portions. The plurality of stopper portions cooperate with the plurality of grooves. The front face of each stopper portion is coplanar with each other. The front face of each stopper portion extends forwardly. The front face of each stopper portion is exposed to the front surface of the base portion.

Description

Electrical connector

The invention relates to an electrical connector, and more particularly to an electrical connector suitable for forward and reverse insertion.

In the prior art, the first case is the Chinese utility model patent with the announcement number CN204118373U. An electrical connector is disclosed that includes a body portion and a housing, and the body portion includes an insulator that is mounted with a plurality of connection terminals. A plurality of positioning grooves are disposed on the front end surface of the base portion of the main body portion, and the housing is provided with a plurality of blocking portions corresponding to the plurality of positioning grooves, and the blocking portions are received in the positioning grooves to fix the main body portion. However, the front surface of each blocking portion is received in each positioning groove and does not extend forward beyond the base portion. When the docking connector is excessively inserted, the head of the docking connector may be pushed to the main body portion, thereby causing displacement of the main body portion. Damaged, affecting the service life.

In the prior art, the second case is the Chinese mainland invention patent with the publication number CN104377491A. A socket electrical connector is disclosed, including an insulative housing and a mask housing that hold a plurality of terminals. The mask housing includes a body and a sleeve housing. The body sleeve is sleeved outside the insulating body, and the sleeve shell is fixed to the outside of the body by laser welding. In the prior art, the main body of the mask housing is only sleeved on the insulative housing, and the insulative housing is not fixed in the front-rear direction. In use, when the mating connector is excessively inserted, the insulative housing may be pushed and displaced. Damaged, affecting the service life. In addition, the laser welding surfaces of the main body and the sleeve type housing are all flat. When there is a large error in the matching, there is a gap between the two planes, which is prone to air welding, and the main body and the sleeve type housing are separated. risk.

Therefore, it is indeed necessary to provide a new electrical connector to overcome the above drawbacks.

The purpose of this creation is to provide an electrical connector that has a longer life and better structural strength.

In order to solve the above problems, the present invention provides an electrical connector, comprising: an insulative housing, a plurality of conductive terminals held in the insulating body, a metal shielding sheet held in the insulating body, and a shielding shell fixed on the insulating body, The insulative housing includes a base and a tongue coupled to the base, the base defining a front surface and a rear surface opposite the front surface, the shielding housing forming a docking space, the base being received in the insert The base portion includes a plurality of positioning slots, the plurality of positioning slots are located at an outer edge of the front surface, and the shielding housing includes a plurality of front stops, the plurality of front stops facing the insertion space Extendingly, the plurality of front stops cooperate with the plurality of positioning slots in a one-to-one correspondence, wherein the front end faces of the plurality of front stops are coplanar and each extends forwardly out of each of the positioning grooves to extend beyond the front surface of the base.

Further, wherein the plurality of conductive terminals comprise an upper row of terminals and a lower row of terminals, the upper row of terminals and the lower row of terminals are arranged in an opposite order, the upper row of terminal portions being exposed on an upper surface of the tongue plate, The lower row of terminal portions are exposed on a lower surface of the tongue plate, and the upper row of terminals and the lower row of terminals respectively comprise one pair of upper row of ground terminals and a pair of lower row of ground terminals on both sides, the pair of uppers The grounding terminals are electrically connected to the corresponding pair of lower row grounding terminals, respectively.

Further, wherein the shielding shell further comprises a pair of rear stops, a pair of the rear stops are located at the tail of the shielding shell and abut against the rear surface of the base.

Further, wherein the shielding housing comprises an upper wall and a lower wall, the plurality of front stops comprising a front stop above the upper wall and a front stop below the lower wall, each of the front Both the blocking portion and the lower front stop portion are formed in an arc shape by a tear forming method, and an opening is formed in the upper wall and the lower wall.

Further, the plurality of positioning grooves include an upper positioning groove and a pair of lower positioning grooves, wherein the upper positioning groove is located at an intermediate position of the front surface of the base near the upper edge, and the pair of the lower positioning grooves are symmetrically disposed at a front side of the front surface of the base near the middle of the lower edge, the upper front stop portion is one pair and the lower front stop portion is a pair, and the upper front stop portion is located on the upper wall And correspondingly engaging with the upper positioning slot, a pair of the lower front stops are symmetrically disposed on the lower wall and respectively corresponding to the pair of the lower positioning slots.

Further, wherein the electrical connector further comprises a plurality of waterproof films attached to outer surfaces of the upper and lower walls to block the openings, respectively.

Further, the electrical connector further includes a metal casing, the metal casing is formed with a receiving space, the shielding casing is received in the receiving space, and the metal casing comprises an upper plate portion and a lower plate portion. Each of the upper plate portion and the lower plate portion includes a plurality of convex portions that are convexly and symmetrically distributed to the receiving space, and a plurality of convex portions located at the upper plate portion and the lower plate portion sandwich the shielding case.

Further, wherein the plurality of protrusions are not in contact with the plurality of waterproof films.

Further, a plurality of convex portions located at the upper plate portion or a plurality of convex portions located at the lower plate portion are fixed by welding with the shielding case.

Further, a plurality of convex portions located at the upper plate portion or a plurality of convex portions located at the lower plate portion are fixed by welding with the shielding case.

Compared with the prior art, the present invention has at least the following beneficial effects: since the shielding shell is provided with a plurality of front stops, the insulating body can be effectively prevented from moving forward, and the insulating body can be protected from being docked by the connector during the plugging process. Excessive insertion and top injury.

The first figure is an assembled view of the present invention in connection with a circuit board.

The second figure is a front view of the electrical connector of the present invention.

The third figure is a three-dimensional assembly diagram of the second figure viewed from another direction.

The fourth figure is a partial exploded view of the electrical connector of the present invention.

The fifth figure is a partial exploded view of the fourth figure seen from another direction.

The sixth figure is a partial exploded view of the fourth figure further exploded.

The seventh figure is a partial exploded view of the sixth figure viewed from another direction.

The eighth figure is a partially exploded exploded view of the sixth figure.

The ninth figure is a partial exploded view of the eighth figure viewed from another direction.

The tenth figure is an exploded perspective view of the electrical connector of the present invention after removing the metal casing, the shielding casing and the two waterproof films.

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

Figure 12 is a cross-sectional view of the first figure taken along the line XII-XII.

Hereinafter, a specific embodiment of the electrical connector 100 of the present invention will be described with reference to the first to twelfth drawings. The directions involved in this specification are all referenced to the first figure, and the plug interface of the plug-in space 400 is defined as the front end. The XII-XII line in the first figure is located at the center of the first ground terminal on the right side and extends in the front-rear direction.

Referring to the first to twelfth drawings, the present invention provides an electrical connector 100 mounted on a circuit board 200. In this embodiment, the electrical connector 100 is a sinker type, and the circuit board 200 is provided with a receiving slot, and the electrical connector 100 is suspended in the receiving slot. The electrical connector 100 includes an insulative housing 1 , a plurality of conductive terminals 2 held in the insulative housing 1 , a metal shielding sheet 3 held in the insulative housing 1 , a shielding housing 4 fixed on the insulative housing 1 , and a plurality of waterproof films . 6, rubber sheet 7 and metal shell 5.

Referring to the first to twelfth drawings, the insulative housing 1 includes a base portion 11 and a tongue plate 12 coupled to the base portion 11. The base 11 defines a front surface 1110 and a rear surface 1120 opposite the front surface 1110. The tongue 12 is formed to extend forward from the front surface 1110. The base 11 includes a plurality of positioning slots. The plurality of positioning slots are located at an outer edge of the front surface 1110. The plurality of positioning slots include an upper positioning slot 1130 and a pair of lower positioning slots 1140. The upper positioning groove 1130 is located at an intermediate position of the front surface 1110 near the upper edge. A pair of the lower positioning grooves 1140 are symmetrically located on both sides of the front surface 1110 near the middle of the lower edge.

The insulative housing 1 includes an upper end seat 13 , a lower end seat 14 , and a plastic member 15 . The upper end seat 13 is located above the lower end seat 14. The base 11 includes a first base 131, a second base 141, and a third base 151. The tongue 12 includes a first tongue 132, a second tongue 142, and a third tongue 152. The upper end seat 13 includes a first base portion 131 and a first tongue plate 132 connected to the first base portion 131. The lower end seat 14 includes a second base portion 141 and a second tongue plate 142 coupled to the second base portion 141. The plastic member 15 includes a third base 151 and a third tongue 152 connected to the third base 151. The first base portion 131, the second base portion 141, and the third base portion 151 together form the base portion 11. The first tongue 132, the second tongue 142, and the third tongue 152 together form the tongue 12.

Referring to the tenth and eleventh drawings, the base 11 defines a front surface 1110 on the third base 151 of the plastic member 15. The base 11 defines a rear surface 1120 on the first base 131 of the upper end seat 13. Therefore, the upper positioning groove 1130 is located at a middle position of the front surface 1110 of the third base portion 151 near the upper edge. A pair of the lower positioning grooves 1140 are symmetrically located on both sides of the front surface 1110 of the third base portion 151 near the middle position of the lower edge.

Referring to the first to twelfth drawings, the plurality of conductive terminals 2 include an upper row of terminals 21 and a lower row of terminals 22. The upper row of terminals 21 is retained in the upper end seat 13. The lower row of terminals 22 are retained within the lower end block 14. The number of the upper row of terminals 21 and the lower row of terminals 22 is the same. The arrangement of the upper row of terminals 21 and the lower row of terminals 22 is reversed such that the electrical connector 100 supports forward and reverse engagement with a mating connector (not shown). The upper row of terminals 21 includes a pair of upper row of ground terminals 2110 on either side. The upper row of ground terminals 2110 includes a first abutting portion 2111 at the front end. The first abutting portion 2111 extends downward from a lower surface of the front end of the first tongue 132 and extends forward. The lower row of terminals 22 includes one pair of lower row ground terminals 2210 on either side. The lower row of ground terminals 2210 includes a second abutting portion 2211 at the front end. The second abutting portion 2211 extends upwardly from the upper surface of the front end of the second tongue 142 and extends forward.

Referring to the first to twelfth drawings, the metal shield sheet 3 is a sheet member made of a metal material. The metal shield sheet 3 is located between the upper end seat 13 and the lower end seat 14. The front end of the metal shield sheet 3 is provided with a pair of through holes 31 penetrating therethrough.

Referring to the first to twelfth drawings, the shielding case 4 is a cylindrical member made of a metal material. The shielding housing 4 is formed with a docking space 400. The shielding housing 4 includes an upper wall 41 and a lower wall 42 opposite the upper wall 41. The shielding housing 4 includes a plurality of front stops and a pair of rear stops 43. The plurality of front stops include an upper front stop 411 and a pair of lower front stops 421 . The upper front stop portion 411 is located on the upper wall 41 and correspondingly cooperates with the upper positioning groove 1130. A pair of the lower front stops 421 are located on the lower wall 42 and are correspondingly engaged with the pair of the lower positioning grooves 1140. The upper front stop portion 411 and the lower front stop portion 421 both extend into the insertion space 400. The upper front stopper portion 411 and each of the lower front stopper portions 421 are each formed in an arc shape by a tear molding method, so that an opening 45 is formed in the upper wall 41 and the lower wall 42. The upper front end portion 411 and each of the lower front end portions 421 define a front end surface 44 and an end surface (not shown) opposite to the front end surface 44. The upper front end portion 411 and the front end surface 44 of each of the lower front end portions 421 are all located in the same plane. A pair of the rear stop portions 43 are located at the tail of the upper wall 41 of the shielding case 4 and are formed to extend downward.

Referring to the first to twelfth drawings, the metal casing 5 is a sleeve-like member made of a metal material. The metal casing 5 is formed with a receiving space 500. The metal casing 5 includes an upper plate portion 51 and a lower plate portion 52. The upper plate portion 51 and the lower plate portion 52 each include four convex portions 53 that are convexly and symmetrically distributed into the accommodating space 500.

Referring to the first to twelfth drawings, the number of the plurality of waterproof films 6 is two. Two of the waterproof sheets 6 are respectively located on the outer surfaces of the upper wall 41 and the lower wall 42 of the shield case 4. Two of the waterproof sheets 6 respectively close the openings 45 on the upper wall 41 and the lower wall 42.

The rubber sheet 7 is formed by solidification of a waterproof glue and is located at the tail of the shielding shell 4. The rubber sheet 7 blocks a gap between the rear end of the main body portion and the tail portion of the shielding case 4.

In the assembly process, first, please refer to the tenth to twelfth figures. The upper end seat 13 of the upper row of terminals 21, the metal shield piece 3, and the lower end seat 14 of the lower holding terminal 22 are assembled in a snap-fit manner in the up-and-down direction. At this time, the pair of first abutting portions 2111 and the pair of second abutting portions 2211 are respectively received in one of the metal shielding sheets 3 in the through hole 31. The pair of first abutting portions 2111 are respectively abutted with the corresponding pair of second abutting portions 2211 to be electrically connected to improve high frequency crosstalk and resonance. Further, the plastic member 15 is integrally formed with the upper end seat 13, the metal shield piece 3, and the lower end seat 14 by integral injection molding. At this time, the edge of the metal shielding sheet 3 is exposed on both sides of the tongue plate 12 to be electrically connected to the mating connector (not shown).

Next, please refer to the second to twelfth drawings, and the shielding shell 4 is sleeved on the insulating body 1. The front stop portion 411 of the shielding case 4 is partially received in the upper positioning groove 1130. One of the shielding housings 4 and the lower front blocking portion 421 are partially received in a pair of the lower positioning grooves 1140, respectively. The upper front end portion 411 and the front end surface 44 of each lower front stop portion 421 are both extended forwardly exposed to the upper positioning groove 1130 and the pair of lower positioning grooves 1140 and are co-located in the same plane. When the mating connector (not shown) is over-inserted, the upper front end portion 411 and the pair of lower front end portions 421 can face the mating connector (not shown) to prevent the insulating body from being insulative. 1 was damaged. The upper front end portion 411 and the pair of lower front end portions 421 rear end faces (not shown) are respectively abutted against the upper positioning groove 1130 and the pair of lower positioning grooves 1140. One of the shielding housings 4 abuts against the rear stop portion 43 against the rear surface 1120 of the first base portion 131 of the plastic member 15 . The upper front stop portion 411 and the pair of lower front stop portions 421 and the pair of the rear stop portions 43 jointly abut the insulative housing 1 in the front-rear direction to prevent the insulative housing 1 from moving back and forth.

A glue cavity is formed between the tail portion of the shielding shell 4 and the rear end of the insulating body 1. The waterproof glue is injected into the cavity to be solidified to form a rubber sheet 7 that blocks the cavity. Two waterproof sheets 6 are attached to the outer surfaces of the upper wall 41 and the lower wall 42 of the shielding case 4 to block the openings 45, respectively. The use of the rubber sheet 7 and the two waterproof sheets 6 makes the electrical connector 100 have better waterproofing effect.

Finally, referring to the first to twelfth drawings, the metal casing 5 is sleeved on the shielding shell 4. The four convex portions 53 located in the upper plate portion 51 and the lower plate portion 52 respectively sandwich the shield case 4 in the up and down direction. In the lateral direction, the distance between the two adjacent edges of the adjacent two convex portions 53 is greater than the width of the corresponding waterproof film 6, so that each of the convex portions 53 is directly clamped to The outer surface of the shielding case 4 is not in contact with the waterproof film 6 to avoid damage to each of the waterproof films 6. In the present embodiment, the four convex portions 53 located at the upper plate portion 51 or the four convex portions 53 located at the lower plate portion 52 are held together with the shield case 4 by laser welding. In other embodiments, the four convex portions 53 located on the upper plate portion 51 and the four convex portions 53 located in the lower plate portion 52 may be held by the laser welding method with the shielding shell 4 . Together, the fixation between the metal housing and the shield housing 4 is made stronger. In this embodiment, each convex portion 53 of the metal casing 5 can form a better contact surface with the outer surfaces of the upper wall 41 and the lower wall 42 of the shielding shell 4, so as to avoid the occurrence of air welding. Therefore, the metal casing 5 and the shield casing 4 are welded together by laser welding. The electrical connector 100 is electrically connected to the circuit board 200.

Compared with the prior art, the electrical connector 100 of the present invention has the following beneficial effects: since the shielding housing 4 is provided with a plurality of front stops, the insulating body 1 can be effectively prevented from moving forward, and the insulating body 1 can be protected from being inserted. During the process, it is not over-inserted by the docking connector (not shown) and is injured. The shielding housing 4 is further provided with a pair of the rear blocking portions 43. The plurality of front blocking portions and the pair of the rear blocking portions 43 press the insulating body 1 forward and backward, thereby effectively preventing the insulating body 1 from moving back and forth. Move and fix more firmly. Moreover, since the metal casing 5 clamps the shielding casing 4 through the convex portions 53 and is welded and coupled together, the fixing of the shielding casing 4 and the metal casing 5 is more firm.

The above is only a part of the embodiments of the present invention, and not all of the embodiments, and any equivalent changes to the present technical solution 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

200‧‧‧ boards

1‧‧‧Insulating body

11‧‧‧ base

1110‧‧‧ front surface

1120‧‧‧Back surface

1130‧‧‧Upper positioning slot

1140‧‧‧ positioning slot

12‧‧ ‧ tongue

13‧‧‧Upper seat

131‧‧‧ first base

132‧‧‧First tongue

14‧‧‧ lower end seat

141‧‧ Second base

142‧‧‧second tongue

15‧‧‧Plastic parts

151‧‧ Third base

152‧‧‧ Third tongue

2‧‧‧Electrical terminals

21‧‧‧Upper terminal

2110‧‧‧Upper grounding terminal

2111‧‧‧First Abutment

22‧‧‧Lower terminal

2210‧‧‧lower ground terminal

2211‧‧‧second abutment

3‧‧‧Metal shield

31‧‧‧through hole

4‧‧‧Shaded housing

400‧‧‧Dock space

41‧‧‧Upper wall

411‧‧‧Upper front

42‧‧‧ Lower wall

421‧‧‧ Lower front section

43‧‧‧ Rear stop

44‧‧‧ front end

45‧‧‧ openings

5‧‧‧Metal casing

500‧‧‧ accommodating space

51‧‧‧Upper Board

52‧‧‧ Lower Board

53‧‧‧ convex

6‧‧‧Waterproof film

7‧‧‧ Rubber board

no

200‧‧‧ boards

1‧‧‧Insulating body

2‧‧‧Electrical terminals

2110‧‧‧Upper grounding terminal

3‧‧‧Metal shield

4‧‧‧Shaded housing

400‧‧‧Dock space

5‧‧‧Metal casing

500‧‧‧ accommodating space

53‧‧‧ convex

Claims (10)

An electrical connector includes an insulating body, a plurality of conductive terminals held in the insulating body, a metal shielding sheet held in the insulating body, and a shielding shell fixed on the insulating body, the insulating body including a base and the base a tongue plate, the base defines a front surface and a rear surface opposite to the front surface, the shielding shell is formed with a docking space, the base is received in the docking space, and the base comprises a plurality of a positioning slot, the plurality of positioning slots are located at an outer edge of the front surface, the shielding housing includes a plurality of front stops, the plurality of front stops extending into the insertion space, the plurality of front stops and The plurality of positioning grooves are matched in a one-to-one manner, wherein the front end faces of the plurality of front stops are coplanar and both extend forwardly out of the positioning grooves to extend beyond the front surface of the base. The electrical connector of claim 1, wherein the plurality of conductive terminals comprise an upper row of terminals and a lower row of terminals, wherein the upper row of terminals and the lower row of terminals are arranged in an opposite order, the upper row of terminals Partially exposed on an upper surface of the tongue plate, the lower row of terminal portions are exposed on a lower surface of the tongue plate, and the upper row of terminals and the lower row of terminals respectively comprise one pair of upper row of grounding terminals and one of the two sides For the lower row of grounding terminals, the pair of upper row of grounding terminals are electrically connected to the corresponding pair of lower row of grounding terminals, respectively. The electrical connector of claim 1, wherein the shielding housing further comprises a pair of rear stops, a pair of the rear stops being located at a rear end of the shielding housing and a rear surface of the base Reciprocal. The electrical connector of any one of clauses 1 to 3, wherein the shielding housing comprises an upper wall and a lower wall, the plurality of front stops including the upper wall a blocking portion and a front stop portion under the lower wall, each of the upper front stop portion and the lower front stop portion are arc-shaped by a tear forming manner, and openings are formed on the upper wall and the lower wall . The electrical connector of claim 4, wherein the plurality of positioning slots comprise an upper positioning slot and a pair of lower positioning slots, the upper positioning slot being located intermediate the front surface of the base near the upper edge a pair of the lower positioning grooves are symmetrically disposed on two sides of the front surface of the front portion near the lower edge, and the number of the upper front stops is one and the number of the lower front stops is a pair. The upper front stop portion is located on the upper wall and correspondingly cooperates with the upper positioning slot, and the pair of the lower front stop portions are symmetrically disposed on the lower wall and respectively cooperate with a pair of the lower positioning slots. The electrical connector of claim 4, wherein the electrical connector further comprises a plurality of waterproof films, the plurality of waterproof films being attached to the outer surfaces of the upper and lower walls, respectively, to block the Opening. The electrical connector of claim 4, wherein the electrical connector further comprises a metal outer casing, the metal outer casing is formed with a receiving space, the shielding housing is received in the receiving space, the metal The outer casing includes an upper plate portion and a lower plate portion, each of the upper plate portion and the lower plate portion includes a plurality of convex portions that are convexly and symmetrically distributed toward the receiving space, and are located at a plurality of convex portions of the upper plate portion and the lower plate portion The shielding housing is clamped. The electrical connector of claim 7, wherein the plurality of protrusions are not in contact with the plurality of waterproof films. The electrical connector of claim 8, wherein the plurality of protrusions located at the upper plate portion or the plurality of protrusions at the lower plate portion are held by welding with the shielding case. The electrical connector of claim 8, wherein the plurality of protrusions located at the upper plate portion or the plurality of protrusions at the lower plate portion are held by welding with the shielding case.