Electrical connector assembly with assembled main shell and sub-shell

An electrical connector assembly, comprising:

• an insulative base including a back part and a forward tongue extending forwardly from the back part, the back part having a pair of side tabs on opposite sidewalls thereof;
• a plurality of contact terminals held by the insulative base with contact portions exposed upon the forward tongue, and mounting portions exposed upon a back wall of the back part;
• a main shell made of metal material, the main shell integrally including a front pocket enclosing the forward tongue, an upper cover covering an upper portion of the back part, a pair of side pieces, a pair of lower wings extending from the respective side pieces and parallel to the upper piece, each of the pair of lower wings engaging with a stepped slot of the insulative body to assist an assembly of the insulative body and the main shell;
• a sub-shell made of metal material and including a lower cover covering a lower portion of the back part;
• wherein the main shell and the sub-shell includes first slots and second slots extending in a vertical direction to engage with the side tabs of the insulative base to hold the main shell, the sub-shell and the insulative base in position in the vertical direction;
• and
• wherein the main shell includes third slots extending in a horizontal direction and the sub-shell includes spring wings extending in the horizontal direction to engage with the third slots to hold the main shell and the sub-shell in position in the horizontal direction perpendicular to the vertical direction.

An electrical connector assembly comprising:

• an insulative housing including a thick back part and a thin forward part extending forwardly from a front portion of the back part;
• the forward part defining a large tongue and a small tongue side by side arranged with each other under condition that front portions of said large tongue and said small tongue are laterally separated/split from each other while rear portions of said large tongue and said small tongue are united with each other;
• first and second sets of contacts respectively located in the corresponding large tongue and the small tongue;
• a metallic shell including a front pocket and a rear segment, said front pocket essentially fully encloses the whole forward part and the rear segment essentially covering the back part;
• and
• the front pocket essentially defining juxtaposed circumferentially enclosed large and small receiving cavities with a non-circumferentially enclosed notch structure therebetween under condition that the large receiving cavity encloses the large tongue and the small receiving cavity encloses the small tongue;
• wherein
• said notch structure is essentially located in a space defined between the split front portions of the large tongue and the small tongue.