Shell grounding structure of electrical connector

Abstract

A shell grounding structure of electrical connector includes: a board-end connector including a housing with a docking space, conductive terminals pierced on both sides of the docking space, and a metal shell assembled on the housing; and a wire-end connector including a holder base with a bottom inserting portion combined with the docking space, contact terminals piercing the inserting portion in contact with the respective conductive terminals and connected with respective electrical cables, and a shielding shell having a cable opening for the cables to be exposed and a hooking plate provided with resisting elastic pieces extending toward the metal shell and forming contact.

Claims

1. A shell grounding structure of electrical connector, comprising: a board-end connector comprising a housing with a docking space therein, a plurality of conductive terminals pierced on two opposite sides of said docking space, and a metal shell assembled on an outside of said housing; and a wire-end connector comprising a holder base, a plurality of contact terminals and a shielding shell, said holder base comprising an inserting portion located on a bottom side thereof and combined with said docking space, said contact terminals piercing said inserting portion and being in contact with said conductive terminals respectively and electrically, said contact terminals each comprising a connecting portion arranged on a top surface of said holder base and respectively electrically connected with a respective one of a plurality of electrical cables, said holder base being externally assembled with said shielding shell, said shielding shell comprising a cable opening located on one side thereof for said cables to be exposed and a hooking plate located on an outside of said metal shell opposite to said cable opening, said hooking plate comprising a plurality of resisting elastic pieces extending toward said metal shell and forming contact.

2. The shell grounding structure of electrical connector as claimed in claim 1, wherein said metal shell further comprises two button holes two opposite sides; said shielding shell is mounted with a handle and further comprises two shaft holes respectively located on two sides corresponding to said button holes, said handle comprising two opposite shaft portions respectively extending through said shaft holes into said button holes of said metal shell to make a limit.

3. The shell grounding structure of electrical connector as claimed in claim 2, wherein said handle comprises a long strip-shaped base rod, and two side rods respectively extended from two opposite ends of said base rod toward one side, said two side rods being turned toward an opposite inner side to form respective said shaft portions.

4. The shell grounding structure of electrical connector as claimed in claim 1, wherein said resisting elastic pieces of said shielding shell are stamped to extend from said hooking plate and turn toward an inner side, so that a resisting surface is formed at a free end of each said resisting elastic piece and vertically attached to a surface of said metal shell.

5. The shell grounding structure of electrical connector as claimed in claim 1, wherein said holder base comprises a plurality of wire grooves located on a top side thereof and arranged at intervals and respectively facing said connecting portions of said contact terminals; said cables are respectively pierced with a respective wire core that is welded to said connecting portion of one respective said contact terminal.

6. The shell grounding structure of electrical connector as claimed in claim 1, wherein said conductive terminals each comprise a docking portion located on one end thereof and disposed in contact with one respective said contact terminal to form an electrical connection, and a welding portion extended and bent from an opposite end thereof and welded to a predetermined circuit board.

7. The shell grounding structure of electrical connector as claimed in claim 1, wherein said contact terminals each further comprise a contact portion located on one end thereof and disposed in contact with one respective said conductive terminal to form an electrical connection, and said connecting portion of each said contact terminal is bent and extended from an opposite end of said contact portion into said top surface of said holder base.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a three-dimensional appearance view of the shell grounding structure of electrical connector of the present invention after combination.

(2) FIG. 2 is a partial three-dimensional exploded view of the shell grounding structure of electrical connector of the present invention.

(3) FIG. 3 is a more detailed three-dimensional exploded view of the shell grounding structure of electrical connector of the present invention.

(4) FIG. 4 is a more detailed three-dimensional exploded view of another perspective of the shell grounding structure of electrical connector of the present invention.

(5) FIG. 5 is a cross-sectional side view of the shell grounding structure of electrical connector of the present invention after combination.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(6) Referring to FIGS. 1-5, which are a three-dimensional appearance view, a partial three-dimensional exploded view, a more detailed three-dimensional exploded view, a more detailed three-dimensional exploded view of another perspective and a cross-sectional side view of the shell grounding structure of electrical connector of the present invention after combination. It can be clearly seen from the figures that the shell grounding structure of electrical connector of the present invention mainly comprises: a board-end connector 1 and a wire-end connector 2. The detailed structure and connection relationship of the aforementioned components are as follows:

(7) The board-end connector 1 comprises a housing 11 with a docking space 10, a plurality of conductive terminals 12 pierced on both sides of the docking space 10, and a metal shell 13 assembled on the outside of the housing 11.

(8) The wire-end connector 2 comprises a holder base 21, a plurality of contact terminals 22, and a shielding shell 23. The holder base 21 comprises an inserting portion 211 located on the bottom side and combined with the docking space 10. The contact terminals 22 pierce the inserting portion 211 and are in contact with the conductive terminals 12 to form electrical connections. The contact terminals 22 each have a connecting portion 222 arranged on the top surface of the holder base 21 and respectively electrically connected with a respective one of a plurality of electrical cables 3. The holder base 21 is externally assembled with the shielding shell 23. The shielding shell 23 has a cable opening 231 located on one side for the cables 3 to be exposed, and a hooking plate 232 located on the outside of the metal shell 13 opposite to the cable opening 231. The hooking plate 232 has a plurality of resisting elastic pieces 2321 extending toward the metal shell 13 and forming contact.

(9) The metal shell 13 mentioned above is provided with a perforation 130 for exposing the docking space 10. The shielding shell 23 further has two shaft holes 2331 respectively located on the two sides for two opposite shaft portions 43 of a handle 4 to extend into and locate respectively. The two shaft portions 43 of the handle 4 extend into the button holes 131 on both sides of the metal shell 13 to make a limit. The handle 4 comprises a long strip-shaped base rod 41, and two side rods 42 respectively extended from two opposite ends of the base rod 41 toward one side, and the two side rods 42 are turned toward the opposite inner side to form the shaft portions 43.

(10) The resisting elastic pieces 2321 of the above-mentioned shielding shell 23 are stamped to extend from the hooking plate 232 and turn toward an inner side, so that a resisting surface 2322 is formed at the free end of each resisting elastic piece 2321 and vertically attached to the surface of the metal shell 13. The hooking plate 232 of the shielding shell 23 has at least one protruding buckle 2323 at the turning point of the top side, and the inner side of the base rod 41 of the handle 4 is provided with at least one buckle portion 411 that corresponds to and can be rotatably engaged with the at least one protruding buckle 2323.

(11) The above-mentioned holder base 21 has a plurality of wire grooves 212 located on the top and arranged at intervals and respectively facing the connecting portions 222 of the contact terminals 22. The cables 3 are respectively pierced with a respective wire core 31 that is welded to the connecting portion 222 of one respective contact terminal 22.

(12) The above-mentioned conductive terminals 12 each further comprise a docking portion 121 located on one end and disposed in contact with one respective contact terminal 22 to form an electrical connection, and a welding portion 122 extended and bent from the opposite end and welded to a predetermined circuit board (not shown in the figures).

(13) The above-mentioned contact terminals 22 each further comprise a contact portion 221 located on one end and disposed in contact with one respective conductive terminal 12 to form an electrical connection, and the connecting portion 222 is bent from the opposite end and extended into the top surface of the holder base 21.

(14) In the actual assembly operation of the shell grounding structure of electrical connector of the present invention, the board-end connector 1 can first place the welding portions 122 of the plurality of conductive terminals 12 electrically connected to the multiple contacts on the surface of the preset circuit board (not shown in the figures) by surface mount technology (SMT), through hole or other electrical connection methods. When the board-end connector 1 and the wire-end connector 2 are docked with each other, the handle 4 set on the wire-end connector 2 can be turned upward first, and the side rods 42 on both sides of the handle 4 are pushed by a top side flange of a side plate 233 of the shielding shell 23 and are relatively outwardly stretched, then assemble the holder base 21 of the wire-end connector 2 downwards to the housing 11 of the board-end connector 1, so that the inserting portion 211 of the holder base 21 is inserted into the docking space 10 of the housing 11. At this time, the contact portions 221 of the plurality of contact terminals 22 are in electrical contact with the docking portions 121 of the plurality of conductive terminals 12 to form an electrical conduction state. At the same time, the plurality of resisting elastic pieces 2321 of the hooking plate 232 are in contact with the surface of the metal shell 13 and electrically connected to the grounding area of the predetermined circuit board, so as to eliminate electromagnetic waves generated by the two electrical connectors when transmitting electronic signals at high speed. Then turn the base rod 41 of the handle 4 towards the hooking plate 232 of the shielding shell 23 to move the at least one buckle portion 411 on the base rod 41 of the handle 4 over the at least one protruding buckle 2323 of the hooking plate 232 to form a snap fit. Thereafter, the side rods 42 of the handle 4 are elastically reset, so that the shaft portions 43 of the handle 4 are snapped into the button holes 131 on both sides of the metal shell 13, so that the board-end connector 1 and the wire-end connector 2 are stably locked into one body.

(15) When you want to separate the wire-end connector 2 from the board-end connector 1, you can turn the base rod 41 of the handle 4 to the upper position, and the side rods 42 on the two sides of the handle 4 are pushed against by the top side flange of the side plate 233 of the shielding shell 23 again and are relatively outwardly stretched. In this way, the two shaft portions 43 of the handle 4 are separated from the button holes 131 on both sides of the metal shell 13, so that the board-end connector 1 and the wire-end connector 2 are in an unlocked state. Then pull the wire-end connector 2 upwards, so that the contact portions 221 of the plurality of contact terminals 22 are separated from the docking portions 121 of the plurality of conductive terminals 12, so as to achieve the purpose of separating the two electrical connectors.

(16) The main feature of the shell grounding structure of electrical connector of the present invention is that the hooking plate 232 of the shielding shell 23 of the wire-end connector 2 has a larger volume, so that the plurality of resisting elastic pieces 2321 arranged therein can all allocate a larger space. Therefore, each resisting elastic piece 2321 can be designed to be relatively wide and thick, and the resisting surface 2322 formed on the free end can be vertically attached to the surface of the metal shell 13, and the board-end and wire-end connectors (1, 2) that are compatible with each other can maintain their original shape after repeated plugging and unplugging without deformation. The resisting contact structure between the metal shell 13 and the shielding shell 23 can then be confirmed, so that the shell grounding structure of electrical connector has a good effect of electromagnetic wave shielding and elimination. The invention has excellent practicability in the field of electrical connector manufacturing, so a patent application is filed to seek patent protection.

(17) The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be included in the scope of the patent of the present invention in the same way, and are hereby declared.

(18) In summary, the above-mentioned shell grounding structure of electrical connector of the present invention can really achieve its effect and purpose when used, so the present invention is an invention with excellent practicability. In order to meet the application requirements for invention patents, please file an application in accordance with the law. I hope that the review committee will approve this case as soon as possible to protect the hard work of the inventor. If the review committee has any doubts, please feel free to write to us. The inventor will do his best to cooperate.