Electrical connectors

Abstract

An electrical connector includes an insulating core, an insert holder, conductive terminals, a metal sleeve, and a conductive retaining ring. The insert holder is inserted into the inner wall of the insulating core. The insulating core has terminal channels, and the conductive terminals pass through the terminal channels. The metal sleeve is fitted over the insulating core, with a first abutment surface on the outer side of the insulating core and a second abutment surface on the inner wall of the metal sleeve. The conductive retaining ring includes a body, a first contact arm, and a second contact arm connecting the body. The body is sandwiched between the insulating core and the metal sleeve. The first contact arm abuts against the first abutment surface of the insulating core, and the second contact arm abuts against the second abutment surface of the metal sleeve. This invention not only simplifies the structure and reduces assembly errors but also avoids relative displacement of components, ensuring a reliable electrical connection between the internal shielding and the external metal sleeve, and enhancing the electromagnetic shielding effect.

Claims

1. An electrical connector, comprising an insulating core (5), an insert (7), a conductive terminal (6), and a metal sleeve (4), wherein the insert (7) is inserted into the inner wall of the insulating core (5), the insulating core (5) is provided with a terminal channel, the conductive terminal (6) passes through the terminal channel, and the metal sleeve (4) is fixedly sleeved on the outside of the insulating core (5), characterized in that a first abutting surface (51) is provided on the outside of the insulating core (5), and a second abutting surface is provided on the inner wall of the metal sleeve (4), the electrical connector further comprising a conductive retaining ring (8), the conductive retaining ring (8) comprising a body (81), and a first contact arm (82) and a second contact arm (83) connected to the body (81), the body (81) being sandwiched between the insulating core (5) and the metal sleeve (4), the first contact arm (82) abutting against the first abutting surface (51) of the insulating core (5), and the second contact arm (83) abutting against the second abutting surface of the metal sleeve (4).

2. The electrical connector as claimed in claim 1, wherein, The body (81) is provided with a groove (84), the groove (84) and the first contact arm (82) are respectively located on both sides of the axial direction of the body (81). The insertion frame (7) includes a frame (71) and a snap-fit ​​part (72) connected to the frame (71). The frame (71) passes through the insulating core (5). The snap-fit ​​part (72) is embedded in the groove (84). The snap-fit ​​part (72) abuts against the bottom wall of the groove (84) along the axial direction of the body (81) and abuts against the side wall of the groove (84) along the circumferential direction of the body (81).

3. The electrical connector as claimed in claim 2, wherein, The insulating core (5) is provided with a cross-shaped slot that runs through its own axis. The frame (71) is cross-shaped and is inserted into the cross-shaped slot. The four end faces of the frame (71) are in interference fit with the slot wall of the cross-shaped slot. The snap-fit ​​part (72) protrudes from the four end faces of the frame (71).

4. The electrical connector as claimed in claim 1, wherein, The insulating core (5) has a protrusion (52) connected to the first contact surface (51), and the body (81) has a notch (85) for avoiding the protrusion (52).

5. The electrical connector as claimed in claim 1, wherein, The first contact arm (82) is provided in multiple ways, and the multiple first contact arms (82) are distributed circumferentially along the body (81); and / or, the second contact arm is provided in multiple ways, and the multiple second contact arms (83) are distributed circumferentially along the body (81).

6. The electrical connector as claimed in claim 1, wherein, The second contact arm (83) has a guide surface at the end away from the body (81).

7. The electrical connector as claimed in claim 1, wherein, The electrical connector also includes a nut (1) and a spring (2). The spring (2) is embedded in the inner wall of the metal sleeve (4). The nut (1) has a stepped surface inside. The nut (1) and the metal sleeve (4) are in interference fit and the stepped surface abuts against the spring (2).

8. The electrical connector as claimed in claim 7, wherein, The spring pieces (2) are arranged in a ring array on the inner wall of the metal sleeve (4). Along the direction of the step surface abutting the spring pieces (2), the diameter of the spring pieces (2) gradually decreases.

9. The electrical connector as claimed in claim 1, wherein, The electrical connector also includes a sealing ring (3), which is sleeved on the outside of the insulating core (5) and is sealed to the inner wall of the metal sleeve (4).

10. The electrical connector as claimed in claim 1, wherein, The electrical connector also includes an outer mold housing (11), which is sleeved on the outside of the metal sleeve (4) and threadedly connected to the metal sleeve (4).

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