Electrical connector having protruding portions on metal shell

Patent metadata

Field	Value
Publication number	US-10490940-B2
Application number	US-201715648727-A
Country	US
Kind code	B2
Filing date	Jul 13, 2017
Priority date	Nov 22, 2016
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

An electrical connector includes an insulating body having a base and a tongue extending forward from the base, multiple terminals fixed in the base and extending to the tongue, and a metal shell. An insertion space is formed between the metal shell and the tongue. The metal shell has first protruding portions protruding toward the insertion space. Each first protruding portion has a first height along the vertical direction. The first height is greater than or equal to 0.02 mm and less than or equal to 0.08 mm. Thus, the corresponding fit clearance in the vertical direction between the electrical connector and a mating connector can be controlled within a range from 0.059 mm to 0.001 mm.

First claim

What is claimed is:

1. An electrical connector configured for insertion of a mating connector, the mating connector having a plastic main body and a shielding shell, and the shielding shell having two first walls opposite to each other and two second walls connected to the first walls, the electrical connector comprising:
an insulating body having a base and a tongue extending forward from the base;
a plurality of terminals, fixed in the base and extending to the tongue, wherein each of the terminals has a soldering portion, the terminals are arranged on an upper surface and a lower surface of the tongue to form an upper row and a lower row, the soldering portion of each of the terminals located at the lower row is soldered on a circuit board in a through hole soldering manner, a periphery of the soldering portion of each of the terminals located at the lower row is wrapped by an insulating protruding block for positioning the soldering portion, and the insulating protruding block protrudes out of a bottom surface of the base;
a metal shell wrapping the insulating body, the metal shell comprising an upper wall and a lower wall arranged oppositely and two sidewalls connected to the upper wall and the lower wall, wherein each of the upper wall and the lower wall is correspondingly provided with at least one first protruding portion protruding on an inner surface thereof and at least one first concave portion concavely formed on an outer surface thereof, each of the sidewalls is correspondingly provided with at least one second protruding portion protruding on an inner surface thereof and at least one second concave portion concavely formed on an outer surface thereof, a front edge of the at least one first protruding portion and a front edge of the at least one second protruding portion are respectively located behind a front edge of the metal shell, the first protruding portion has a first height along a vertical direction, the first height is greater than or equal to 0.02 mm and less than or equal to 0.08 mm, the at least one second protruding portion, the at least one first protruding portion and the tongue jointly form an insertion space, the insertion space surrounds a periphery of the tongue, and the at least one second protruding portion and the at least one first protruding portion are protrudingly provided toward the insertion space to limit the shielding shell to align and enter the insertion space; and
an external metal shell wrapping a periphery of the metal shell, wherein a front edge of the external metal shell is located behind the front edge of the metal shell, and the front edge of the at least one first concave portion is located between the front edge of the external metal shell and the front edge of the metal shell.

2. The electrical connector of claim 1 , wherein the at least one first protruding portion is shaped like a long strip, and a length of the at least one first protruding portion along a longitudinal direction is greater than or equal to a material thickness of the metal shell.

3. The electrical connector of claim 1 , wherein a width of the at least one first protruding portion along a horizontal direction perpendicular to a longitudinal direction is greater than or equal to a material thickness of the metal shell.

4. The electrical connector of claim 1 , wherein a first distance exists between the front edge of the at least one first protruding portion and the front edge of the metal shell, and the first distance is four or more times greater than a material thickness of the metal shell.

5. The electrical connector of claim 1 , wherein the at least one first protruding portion of the upper wall is separated from the at least one first protruding portion of the lower wall by a second distance along a vertical direction, and the second distance is greater than or equal to 2.43 mm and less than or equal to 2.51 mm.

6. The electrical connector of claim 1 , wherein each of the upper wall and the lower wall is provided with two first protruding portions.

7. The electrical connector of claim 1 , wherein the at least one second protruding portion has a second height along a horizontal direction, the second height is greater than or equal to 0.01 mm and less than or equal to 0.06 mm, each of the at least one second protruding portion has a second limiting surface, a minimum second clearance exists between the second limiting surface of each of the at least one second protruding portion and a corresponding one of the second walls, and the minimum second clearance is greater than or equal to 0 mm and less than or equal to 0.045 mm.

8. The electrical connector of claim 1 , wherein a fourth distance exists between the second protruding portions of the two sidewalls, and the fourth distance is greater than or equal to 8.28 mm and less than or equal to 8.31 mm.

9. The electrical connector of claim 1 , wherein each sidewall is provided with two separated second protruding portions along a longitudinal direction, a fifth distance exists between the front edge of the second protruding portion close to the front side and the front edge of the metal shell, and the fifth distance is four or more times greater than a material thickness of the metal shell.

10. The electrical connector of claim 1 , wherein each second protruding portion is round shaped, and a diameter of each second protruding portion along a longitudinal direction is greater than or equal to a material thickness of the metal shell.

11. The electrical connector of claim 1 , wherein each of two sides of the external metal shell is provided with a retaining piece, each of two sidewalls is provided with an engagement opening corresponding to one of the retaining pieces, each retaining piece is correspondingly fastened in corresponding one of the engagement openings, and the second protruding portions are located in front of the engagement openings.

12. The electrical connector of claim 1 , wherein the first height is greater than or equal to 0.04 mm and less than or equal to 0.07 mm.

13. The electrical connector of claim 1 , wherein the terminals and the insulating body are formed as a whole by insert-molding, the terminals are respectively arranged on an upper surface and a lower surface of the tongue to form an upper row and a lower row, each terminal has a flat contacting portion extending to the upper or lower surfaces of the tongue, and a shielding sheet is embedded in the tongue and located between the two rows of contacting portions.

14. The electrical connector of claim 13 , wherein each of two sides of the tongue is concavely provided with a buckling slot, each of two sides of the shielding sheet is provided with a recessed portion, and the recessed portions are correspondingly located at the buckling slots and aligned with the buckling slots.

15. The electrical connector of claim 1 , wherein the upper wall is provided with a metal elastic piece protruding toward the insertion space, and the upper wall is provided with two first protruding portions respectively located on a left side and a right side of the metal elastic piece along the horizontal direction.

16. The electrical connector of claim 15 , wherein a length of the first protruding portions along a longitudinal direction is greater than a length of the metal elastic piece along the longitudinal direction.

17. The electrical connector of claim 15 , wherein the upper wall is provided with an opening, and the metal elastic piece is formed by extending integrally backward from a front edge of the opening and bending toward the insertion space, and the metal elast

Assignees

• Lotes Co Ltd

Inventors

• Ju Ted

Classifications

• H01R13/631 Primary

  for engagement only · CPC title

• H01R12/724

  containing contact members forming a right angle · CPC title

• H01R24/60

  Contacts spaced along planar side wall transverse to longitudinal axis of engagement · CPC title

• H01R13/6594

  the shield being mounted on a PCB and connected to conductive members · CPC title

• H01R43/0256

  for soldering or welding connectors to a printed circuit board · CPC title