Electrical connector
An electrical connector includes a terminal module, which includes an insulating block and multiple first terminals retained at the insulating block. Each first terminal has a first contact portion exposed from a bottom surface of the insulating block. A top surface or the bottom surface of the insulating block is concavely provided with at least one groove, each of the at least one groove located between two adjacent first terminals. The groove runs forward through a front end surface of the insulating block and extends backward beyond a rear end of the first contact portion. A second terminal is located on the insulating block. The second terminal has a second contact portion, which is exposed from the top surface of the insulating block. An insulating body is formed outside the terminal module and the second terminal by injection-molding.
1. An electrical connector, comprising:
a terminal module, comprising an insulating block, a middle shielding sheet retained in the insulating block, and a plurality of first terminals retained at the insulating block, each of the first terminals having a first contact portion exposed from a bottom surface of the insulating block, wherein the insulating block comprises a tongue piece, a top surface or the bottom surface of the insulating block is concavely provided with at least one groove, each of the at least one groove located between two adjacent ones of the first terminals, and the groove runs forward through a front end surface of the insulating block and extends backward beyond a rear end of the first contact portion;
a second terminal, located on the insulating block, wherein the second terminal has a second contact portion, and the second contact portion is exposed from the top surface of the insulating block; and
an insulating body, formed outside the terminal module and the second terminal by injection-molding,
wherein the middle shielding sheet is located between the first terminals and the second terminal; and
wherein the middle shielding sheet is provided with a through hole, the tongue piece is provided with a penetration hole running through the top surface and the bottom surface of the tongue piece, the through hole is communicated with and the penetration hole, and the through hole is located between two adjacent ones of the first terminals.
2. The electrical connector of claim 1 , wherein the insulating block comprises a main body portion, the tongue piece extends forward from the main body portion, a top surface and a bottom surface of tongue piece are concavely provided with a plurality of the grooves, the first contact portion is exposed from the bottom surface of the tongue piece, and the second contact portion is exposed from the top surface of the tongue piece.
3. The electrical connector of claim 2 , wherein each of the first terminals has a first connecting portion and a first soldering portion, the first connecting portion is connected to the first contact portion and the first soldering portion, the first connecting portion has a first extending portion connected to the first contact portion, and the first extending portion is retained in the main body portion.
4. The electrical connector of claim 3 , wherein the terminal module comprises a positioning seat, the first connecting portion comprises a first retaining portion connected to the first extending portion and the first soldering portion, and the first retaining portion is retained in the positioning seat.
5. The electrical connector of claim 4 , wherein the positioning seat is formed outside the first retaining portion by injection-molding.
6. The electrical connector of claim 4 , wherein two protruding blocks are provided at two sides of the positioning seat, two fixing grooves are provided at two sides of the main body portion, and the protruding blocks are fastened into the fixing grooves.
7. The electrical connector of claim 3 , wherein the insulating block is formed outside the first contact portion, the first extending portion, and the middle shielding sheet by injection-molding.
8. The electrical connector of claim 3 , wherein the second terminal has a second connecting portion and a second soldering portion, the second connecting portion is connected to the second contact portion and the second soldering portion, the main body portion is provided with a clamping groove, and the second connecting portion is engaged into the clamping groove.
9. The electrical connector of claim 8 , wherein the insulating body comprises a base portion and a tongue extending forward from the base portion, and the second contact portion and the first contact portion are respectively exposed from a top surface and a bottom surface of the tongue.
10. The electrical connector of claim 9 , wherein the first connecting portion and the second connecting portion are retained in the insulating body, the first connecting portion and the second connecting portion cross the base portion and the tongue, and both the first soldering portion and the second soldering portion penetrate through a bottom surface of the base portion.
11. The electrical connector of claim 9 , wherein the groove is located in the tongue.
12. The electrical connector of claim 2 , wherein a top surface or a bottom surface of the middle shielding sheet is partially exposed from the grooves.
13. The electrical connector of claim 2 , wherein the middle shielding sheet is provided with a bridging through hole, the tongue piece comprises a bridging portion, and the bridging portion is located in the bridging through hole and is tightly attached to an inner edge of the bridging through hole.
14. The electrical connector of claim 13 , wherein the bridging through hole is communicated with the grooves.
15. The electrical connector of claim 1 , wherein the insulating body is provided with a through slot communicated with both the through hole and the penetration hole.
16. The electrical connector of claim 1 , wherein a foremost end edge of the middle shielding sheet is located in front of a foremost end edge of the tongue piece.
17. The electrical connector of claim 1 , wherein the groove is located between two adjacent first contact portions.
18. An electrical connector, comprising:
a terminal module, comprising an insulating block, a middle shielding sheet retained in the insulating block, and a plurality of first terminals retained at the insulating block, each of the first terminals having a first contact portion exposed from the insulating block, wherein the insulating block comprises a tongue piece, a top surface or the bottom surface of the insulating block is concavely provided with a groove located between two adjacent ones of the first terminals;
a second terminal, located at a side of the insulating block; and
an insulating body, formed outside the terminal module and the second terminal by injection-molding, wherein at least a portion of plastic of the insulating body enters the groove,
wherein the middle shielding sheet is located between the first terminals and the second terminal; and
wherein the middle shielding sheet is provided with a through hole, the tongue piece is provided with a penetration hole running through the top surface and the bottom surface of the tongue piece, the through hole is communicated with and the penetration hole, and the through hole is located between two adjacent ones of the first terminals.
19. The electrical connector of claim 18 , wherein the groove is located between two adjacent first contact portions.
20. The electrical connector of claim 19 , wherein the groove runs forward through a front end surface of the insulating block.
21. The electrical connector of claim 19 , wherein the groove extends backward beyond a rear end of the first contact portion.
22. The electrical connector of claim 18 , wherein the groove is located between two adjacent second terminals.
23. The electrical connector of claim 18 , wherein the insulating block is formed outside the first terminals by injection-molding.
24. The electrical connector of claim 18 , wherein the insulating body is provided with a through slot communicated with both the through hole and the penetration hole.