TWM472970U - Electric connector - Google Patents

Abstract

An electric connector, comprises an insulating housing, a number of terminals received in the insulating housing and a shell covering the insulating housing. The shell includes an inner shell covering the insulating housing and an outer shell attached upon the inner shell. The inner shell surrounds the insulating housing and defines a receiving room therein. The outer shell has an engagement portion depressed downwardly therefrom. The engagement portion includes two connecting arms connecting with a front and a rear ends thereof and a engaging portion protruding downwardly between the two connecting arms. The engaging portion protrudes into the room to engage with a mating connector.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to a metal housing for an electrical connector.

The prior art related to the present invention can be referred to an electrical connector disclosed in the Chinese Utility Model Patent No. CN201956511U, which is incorporated by reference to the entire disclosure of the present disclosure. The electrical connector includes an insulative body and a plurality of conductive terminals disposed on the insulative body. And shielding the casing. The shielding case includes an inner casing covering the insulative housing and an outer casing covering the inner casing. The inner casing is provided with a tear-molded elastic contact arm, and the outer casing is provided with a plurality of elastic pieces, and the elastic piece is coated on the elastic contact arm, and the arrangement is equivalent to increasing the strength of the elastic contact arm. Strengthen the insertion and removal force of the electrical connector. However, the electrical connector is matched with the mating connector by the elastic contact arm of the inner casing, and is limited by the elastic piece of the outer casing, and the deformation amount of the elastic contact arm is small, which may affect the mutual connection between the two connectors. The card is holding power.

Therefore, in view of the above problems, it is necessary to provide an improved electrical connector to solve the above problems.

The purpose of this creation is to provide an electrical connector that reinforces the insertion force between the connector and the docking connector.

In order to achieve the above object, the present invention adopts the following technical solution: an electrical connector includes an insulative housing, a conductive terminal received in the insulating body, and a housing covering the insulative housing, the insulative housing including the base and the base from the base And an outer casing covering the insulative housing and an outer casing covering the outer casing, the inner casing enclosing the tongue plate to form a receiving cavity, wherein the outer casing is provided An opening portion and a fitting portion located in the opening and protruding toward the inner casing, wherein the engaging portion includes two connecting arms connected to the outer casing at the front and the rear, and connecting the two connecting arms and protruding into the receiving cavity through the inner casing Connection.

Compared with the prior art, the present invention has the following functions: the mating portion of the outer casing of the original electrical connector is a fixed beam structure, and resists the casing of the mating plug connector to enhance the insertion and extraction force.

1‧‧‧Insulating body

11‧‧‧ base

111‧‧‧ top surface

1111‧‧‧Pre-card slot

1112‧‧‧ rear card slot

112‧‧‧ bottom

113‧‧‧ side

114‧‧‧Back

1141‧‧‧Boss

12‧‧ ‧ tongue

121‧‧‧ upper surface

1211‧‧‧ receiving trough

122‧‧‧ lower surface

2‧‧‧Electrical terminals

21‧‧‧Contacts

22‧‧‧ Holding Department

23‧‧‧Weld Department

3‧‧‧ inner casing

31‧‧‧ top wall

311‧‧‧ openings

312‧‧‧Resistance

313‧‧‧ Back wall

3131‧‧‧Extension arm

3132‧‧‧ welding arm

314‧‧‧Limited feet

32‧‧‧ bottom wall

33‧‧‧ side wall

3311‧‧‧Limited side

4‧‧‧Outer casing

41‧‧‧ top

411‧‧‧Matement Department

4111‧‧‧Connecting arm

4112‧‧‧Apartment

412‧‧‧ openings

42‧‧‧ side

421‧‧‧welding feet

5‧‧‧ containment chamber

100‧‧‧Electrical connector

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

The second figure is a perspective view of another angle of the present electrical connector.

The third figure is a partially exploded perspective view of the original electrical connector.

The fourth figure is an exploded perspective view of the original electrical connector.

The fifth figure is an exploded perspective view of the fourth figure from another angle.

The sixth figure is a perspective view of the insulative body and the conductive terminals of the present electrical connector.

The present invention will be further described in detail below with reference to the accompanying drawings.

Referring to the first to third figures, the present invention includes an insulative housing 1 , a plurality of conductive terminals 2 received in the insulative housing 1 , and a housing covering the insulative housing 1 .

Referring to the third to fifth figures, the insulative housing 1 includes a base portion 11 and a tongue plate 12 extending forward from the middle of the base portion 11. The tongue plate 12 is provided with an upper surface 121 and a lower surface 122 opposite to the upper surface 121. The top surface 121 of the tongue plate 12 is provided with a terminal receiving groove 1211. The base portion 11 is provided with a top surface 111, a bottom surface 112 opposite to the top surface 111, two side surfaces 113 connecting the top surface 111 and the bottom surface 112, and a rear surface 114 at the rear side of the base portion 11. The front end of the base portion 11 is provided with a top surface. The plurality of front retaining grooves 1111 formed by the depressions 111 and the plurality of rear retaining grooves 1112 recessed from the top surface 111 of the rear end of the base portion 11. The front holding groove 1111 and the rear holding groove 1112 are arranged in parallel along the longitudinal direction of the base portion 11. The base portion 11 is further provided with a boss 1141 which continues to protrude rearward from the rear surface 114. The boss portion 1141 is located outside the rear latching groove 1112 and is connected to the two side faces 113.

The housing includes an inner casing 3 covering the insulative housing 1 and an outer casing 4 covering the outer side of the inner casing 3. The inner casing 3 and the outer casing 4 are each formed by stamping and bending a metal piece.

The inner casing 3 surrounds the tongue plate 12 to form a receiving cavity 5 . The inner casing 3 includes a top wall 31, a bottom wall 32 opposite to the top wall 31, and two side walls 33 connecting the top wall 31 and the bottom wall 32. The top wall 31 is recessed with a plurality of openings 311 extending up and down. The openings 311 are arranged side by side along the longitudinal direction of the inner casing 3 and above the upper surface 121 of the tongue plate 12. A plurality of stamped abutting portions 312 are formed at the rear end of the top wall 31. The abutting portions 312 abut against the front holding grooves 1111 on the base portion 11 to prevent the insulating body 1 from moving forward. The top wall 31 is further provided with two horizontally extending legs 314 extending toward the receiving cavity, and the limiting legs 314 are located behind the abutting portion 312. The limiting leg 314 is resisted in the locking groove 1112 behind the base 11 for restricting the backward movement of the insulating body 1 . The rear portion of the top wall 31 is bent downward to form a rear wall 313, and the rear wall 313 shields the rear surface 114 of the base portion 11. The rear wall 313 further includes an extending arm 3131 extending horizontally to both sides and a welding arm 3132 extending downward from the end of the extending arm 3131. The welding arm 3132 is soldered to the circuit board (not shown) to prevent the electrical connector. 100 shaking. A limiting edge 3311 is formed on the upper end of the extending arm 3131. The protruding protrusion 1141 protrudes rearwardly above the limiting edge 3311 to limit the displacement of the inner casing 3 in the up and down direction.

The outer casing 4 includes a top portion 41 and two side portions 42 extending downward from both sides of the top portion 41. The two sides 42 are provided with soldering legs 421 extending downward from the lower edge of the side portion 42. The soldering legs 421 are located on the inner side of the soldering arm 3132, and the soldering legs 421 are soldered to the circuit board ( The stability of the electrical connector 100 is reinforced on the upper side. The top portion 41 is wrapped around the top wall 31 of the inner casing 3, and the two side portions 42 are wrapped around the two side walls 33 of the inner casing 3, which is equivalent to increasing the thickness of the inner casing 3 to strengthen the inner portion. The structural strength of the housing 3. The top portion 41 is provided with an opening 412 and a matching portion 411 extending in the opening 412 and protruding downward. The engaging portion 411 is a fixed beam structure including two connecting arms connecting the front and rear ends to the edge of the opening 412. 4111 and an abutting portion 4112 that connects the two connecting arms 4111 and protrudes downward. The engaging portion 411 is formed by punching, and the left and right sides thereof are disconnected from the edge of the opening 412. The abutting portion 4112 protrudes into the receiving cavity 5 through the opening 311 of the inner casing 3, and when the butted plug connector (not shown) is inserted into the receiving cavity 5, the abutting portion 4112 A metal casing (not shown) of the plug connector (not shown) is abutted, and the two supporting points formed by the connecting top portions 41 of the two connecting arms 4111 are used to provide the elastic force of the engaging portion 411 after deformation to resist A plug connector for reinforcing the insertion force of the electrical connector 100.

Referring to the sixth embodiment, the conductive terminal 2 is integrally formed in the insulative housing 1. The conductive terminal 2 includes a contact portion 21 received in the receiving slot 1211, and is bent from the rear end of the contact portion 21 and extends downward. The holding portion 22 and the self-holding portion 22 received in the base portion 11 continue to extend rearwardly from the welded portion 23 of the insulative housing 1.

The housing of the present invention includes an inner casing 3 covering the insulative housing 1 and an outer casing 4 covering the inner casing 3. The outer casing 4 is recessed corresponding to the opening 311 of the inner casing 3. There is a corresponding mating portion 411. The mating portion 411 is a fixed beam structure. The two connecting arms 41 are connected to the top portion 41 to form two supporting points, and the supporting portion 4112 is provided with a supporting force, and the outer casing 4 is used to strengthen the electrical connection. The structural strength of the device 100, and the abutting portion 4112 of the mating portion 411 protruding through the opening 311 into the receiving cavity 5 is used to abut the metal casing of the mating plug connector to enhance the insertion and extraction force. The mating portion 411 is disposed on the outer casing 4. When the mating portion 411 is used for a long period of time to cause deformation failure, only the outer casing 4 needs to be replaced, and the inner casing 3 does not need to be replaced, which is convenient and simple.

In other embodiments, the conductive terminal 2 can also be assembled in the insulative housing 1 . The outer casing 4 can be fixed to the inner casing 3 by welding.

The above description is only one embodiment of the present invention, and is not all or the only embodiment. Any equivalent change taken by a person skilled in the art by reading the creation specification is a patent application of the present invention. Covered by the scope.

1‧‧‧Insulating body

2‧‧‧Electrical terminals

3‧‧‧ inner casing

31‧‧‧ top wall

32‧‧‧ bottom wall

33‧‧‧ side wall

4‧‧‧Outer casing

41‧‧‧ top

411‧‧‧Matement Department

4111‧‧‧Connecting arm

4112‧‧‧Apartment

412‧‧‧ openings

42‧‧‧ side

421‧‧‧welding feet

5‧‧‧ containment chamber

100‧‧‧Electrical connector

Claims (10)

An electrical connector comprising:
The insulating body comprises a base and a tongue extending forward from the base;
The conductive terminal is housed in the insulating body;
The housing includes an inner casing covering the insulative housing and an outer casing covering the outer casing;
The inner casing encloses a tongue plate to form a receiving cavity, and the outer casing is provided with an opening and a fitting portion located in the opening and protruding toward the inner casing, wherein the engaging portion includes two ends connected to the outer casing. Two connecting arms and an abutting portion connecting the two connecting arms and protruding through the inner casing into the receiving cavity. The electrical connector of claim 1, wherein the inner casing comprises a top wall, a bottom wall opposite to the top wall, and two side walls connecting the top wall and the bottom wall, the top wall corresponding to the abutting portion The position is provided with an opening through which the abutment protrudes into the receiving cavity. The electrical connector of claim 2, wherein the outer casing comprises a top portion, two side portions extending downward from both sides of the top portion, and welding legs extending from lower ends of the both side portions, the two sides Covering the two side walls of the inner casing. The electrical connector of claim 2, wherein the tongue plate comprises an upper surface and a lower surface opposite the upper surface, the conductive terminal comprising a contact portion on the surface of the tongue, the opening being located at the tongue Above the upper surface of the board. The electrical connector of claim 4, wherein the base portion is provided with a top surface, a bottom surface opposite to the top surface, two side surfaces connecting the top surface and the bottom surface, and a rear surface at the rear side, the top surface recessed There are a plurality of front card holding slots and a plurality of rear card holding slots. The electrical connector of claim 5, wherein the top wall of the inner casing is provided with a plurality of stamping abutting portions, and the abutting portion abuts in the front retaining groove. The top wall is further provided with two horizontally extending legs which are bent toward the receiving cavity, and the limiting legs abut against the rear retaining groove. The electrical connector of claim 3, wherein the rear wall of the inner casing is cut and bent downward to form a rear wall, the rear wall abutting the base. The electrical connector of claim 7, wherein the rear wall comprises an extending arm extending horizontally to both sides and a welding arm extending downward from the extending end of the extending arm, the welding leg being located The inside of the front side of the welding arm. The electrical connector of claim 2, wherein the outer casing is fixed to the upper surface of the inner casing by welding. The electrical connector of claim 1, wherein the two connecting arms are coupled to the outer casing in a direction in which the outer casing extends forward and backward.