Electrical connector

Abstract

The utility model discloses an electric connector, including insulating body, hold in the insulating body on several conductive terminal and the metal casing of setting in the insulating body outside, the insulating body is equipped with the base and the tongue plate department that extends from the base to the front, several conductive terminals include the first terminal and the second terminal along the transverse arrangement into two rows, and each conductive terminal is equipped with the holding portion that holds in the insulating body, the contact portion that extends from the holding portion to the front and the head portion located in the contact portion front end. The insulating body includes the first body of primary injection molding on the conductive terminal and the second body of secondary injection molding on the first body, and the head portion of first terminal and second terminal all exposes in the front end of first body and is embedded in the second body, and the head portion of second terminal exceeds the head portion of first terminal to the front, so that the joint line place is non - through - type structure after secondary injection molding, thereby avoided the problem of liquid from the short circuit of effusion of through - type joint line place.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector suitable for reversible insertion. Background Technology

[0002] Current USB Type-C connectors are typically used in consumer electronics products such as computers and mobile phones as data or charging interfaces. These connectors include an insulating body, conductive terminals disposed on the insulating body, and a shielding shell covering the insulating body. The insulating body includes a base and a tongue extending forward from the base. The conductive terminals include a retaining portion fixed to the base, a soldering portion extending rearward from the retaining portion from the base, and a contact portion extending forward from the retaining portion and exposed on the surface of the tongue. Furthermore, existing USB Type-C connectors form the insulating body and conductive terminals as a single unit through a secondary injection molding process. However, in existing USB Type-C connectors, the upper and lower rows of terminals are stacked side-by-side before secondary injection molding, and the bonding line after secondary injection molding is a through-type structure. As a result, external liquid can flow in through this bonding line, causing a short circuit between the upper and lower rows of terminals due to liquid accumulation.

[0003] Therefore, it is hoped that a new electrical connector can be proposed to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this utility model is to provide an electrical connector in which the joint line is a non-through structure after secondary injection molding, thereby avoiding the problem of short circuit due to fluid accumulation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an electrical connector, comprising an insulating body, a plurality of conductive terminals fixed on the insulating body, and a metal shell sleeved on the outside of the insulating body. The insulating body has a base and a tongue portion extending longitudinally forward from the base. The plurality of conductive terminals include first terminals and second terminals arranged in two rows laterally. Each conductive terminal has a holding portion fixed within the insulating body, a contact portion extending longitudinally forward from the holding portion, and a head located at the longitudinal front end of the contact portion. The contact portions of the first terminal and the second terminal are respectively exposed on the upper and lower surfaces of the tongue portion. The insulating body includes a first body integrally injection molded onto the conductive terminals and a second body integrally injection molded onto the first body. The heads of the first terminal and the second terminal are both exposed at the longitudinal front end of the first body and embedded in the second body. The head of the second terminal extends longitudinally forward beyond the head of the first terminal.

[0006] In a preferred embodiment, the contact portion of the first terminal and the contact portion of the second terminal are respectively disposed in a vertical direction perpendicular to the longitudinal and transverse directions, and the projections of the heads of the first terminal and the second terminal in the vertical direction overlap each other.

[0007] In a preferred embodiment, the head of the first terminal is vertically positioned above the head of the second terminal, and the distance from the head of the first terminal to the head of the second terminal is less than the distance from the contact portion of the first terminal to the contact portion of the second terminal.

[0008] In a preferred embodiment, each of the conductive terminals is provided with a weld portion extending longitudinally backward from the retaining portion out of the insulating body, and the weld portions of the first terminal and the second terminal are arranged in a row transversely.

[0009] In a preferred embodiment, the electrical connector includes a shielding plate held within the insulating body, the shielding plate being disposed between the first terminal and the second terminal.

[0010] In a preferred embodiment, the first body is integrally injection molded with the first terminal, the second terminal, and the shielding sheet; the second body is integrally injection molded with the first body fixed to the first terminal, the second terminal, and the shielding sheet.

[0011] In a preferred embodiment, the metal housing has a cylindrical structure and its rear end abuts against the base of the insulating body, and the metal housing and the insulating body together form a mating cavity.

[0012] In a preferred embodiment, the base is provided with a front abutment groove at the longitudinal front end and a rear abutment groove at the longitudinal rear end, and the metal housing is provided with a front stop and a rear stop protruding inward from the rear end. The front stop abuts against the front abutment groove rearward, and the rear stop abuts against the rear abutment groove forward.

[0013] In a preferred embodiment, the electrical connection further includes a metal bracket welded to the top surface of the metal housing, the lateral sides of which are fixed to a circuit board.

[0014] In a preferred embodiment, the metal bracket has a front shielding portion that covers the top surface of the metal housing and a rear shielding portion that extends laterally from the longitudinal rear end of the front shielding portion, the rear shielding portion at least partially covering the top surface of the base.

[0015] Compared with the prior art, this utility model has the following beneficial effects: The insulating body includes a first body that is injection molded onto the conductive terminal in one step and a second body that is injection molded onto the first body in a second step. The heads of both the first and second terminals protrude from the longitudinal front end of the first body and are embedded in the second body. The head of the second terminal extends longitudinally beyond the head of the first terminal. The heads of the first and second terminals are staggered and stacked longitudinally during the first injection molding process, so that the joint line after the second injection molding is a non-penetrating structure, that is, liquid cannot penetrate and flow in from the joint line, thereby avoiding the problem of liquid accumulation and short circuit caused by liquid flowing in from the penetrating joint line. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the electrical connector in a preferred embodiment of the present invention.

[0017] Figure 2 yes Figure 1 The diagram shows a partially exploded view of the electrical connector.

[0018] Figure 3 yes Figure 2 An exploded view of the terminal module in the electrical connector shown.

[0019] Figure 4 yes Figure 1 The diagram shows a cross-sectional view of the electrical connector.

[0020] Figure 5 yes Figure 2 A three-dimensional schematic diagram of the first module in the electrical connector shown. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0022] Please see Figures 1 to 5 As shown, a preferred embodiment of the present invention discloses an electrical connector 100, which is a USB Type-C socket connector that supports reversible insertion and is used for soldering onto a circuit board. The electrical connector 100 includes a terminal module and a housing that accommodates the terminal module, the terminal module being assembled into the housing from back to front longitudinally.

[0023] Please see Figures 2 to 3As shown, the terminal module includes an insulating body 10, a plurality of conductive terminals 20 fixed on the insulating body 10, and a shielding sheet 30 fixed within the insulating body 10. The insulating body 10 has a base 11 extending laterally, a tongue portion 12 extending longitudinally forward from the base 11, and a stepped portion 13 connecting the base 11 and the tongue portion 12. The stepped portion 13 extends longitudinally forward from the base 11, and the tongue portion 12 extends longitudinally forward from the stepped portion 13. The thickness of the stepped portion 13 is greater than the thickness of the tongue portion 12.

[0024] The plurality of conductive terminals 20 include first terminals 201 and second terminals 202 arranged in two rows laterally. The number of first terminals 201 and second terminals 202 is the same, and the arrangement order of the first terminals 201 and second terminals 202 is reversed, thereby enabling the electrical connector 100 to be inserted into a mating connector in both directions. A shielding plate 30 is disposed between the first terminals 201 and the second terminals 202; there are two shielding plates 30, each disposed between the outermost conductive terminals 20 of the first terminals 201 and the second terminals 202 laterally.

[0025] Each of the conductive terminals 20 is provided with a holding portion 21 held within the insulating body 10, a contact portion 22 extending longitudinally forward from the holding portion 21, a welding portion 23 extending longitudinally backward from the holding portion 21 out of the insulating body 10, and a head 24 located at the longitudinal front end of the contact portion 22. The welding portion 23 is used for welding to the surface of the circuit board. Figures 4 to 5 As shown, the contact portion 22 of the first terminal 201 and the contact portion 22 of the second terminal 202 are respectively arranged in a vertical direction perpendicular to the longitudinal and transverse directions, and the distance from the head 24 of the first terminal 201 to the head 24 of the second terminal is less than the distance from the contact portion 22 of the first terminal 201 to the contact portion 22 of the second terminal 202.

[0026] Therefore, the contact portion 22 of each of the first terminal 201 and the second terminal 202 is exposed on the upper and lower surfaces of the tongue portion 12, respectively, while the head 24 of the first terminal 201 and the second terminal 202 is embedded in the tongue portion 12. Simultaneously, the welding portions 23 of the first terminal 201 and the second terminal 202 are arranged in a row laterally. Further, the head 24 of the first terminal 201 is vertically positioned above the head 24 of the second terminal 202, and the vertical projections of the heads 24 of the first terminal 201 and the second terminal 202 overlap each other, with the head 24 of the second terminal 202 extending longitudinally beyond the head 24 of the first terminal 201.

[0027] The insulating body 10 includes a first body 14 injection-molded onto the conductive terminal 20 in one step and a second body 15 injection-molded onto the first body 14 in a second step. The heads 24 of the first terminal 201 and the second terminal 202 are both exposed at the longitudinal front end of the first body 14 and embedded in the second body 15. Because the heads 24 of the first terminal 201 and the second terminal 202 are staggered and stacked longitudinally during the first injection molding, the joint line where the heads 24 are located after the second injection molding is a non-penetrating structure, that is, liquid cannot penetrate and flow in from the joint line, thereby avoiding the problem of liquid accumulation and short circuit caused by liquid flowing in from the penetrating joint line.

[0028] Specifically, the first body 14 is integrally injection molded with the first terminal 201, the second terminal 202 and the shielding sheet 30 to form a first module; and the second body 15 is integrally injection molded with the first body 14 (i.e. the first module) fixed to the first terminal 201, the second terminal 202 and the shielding sheet 30 to form the aforementioned terminal module.

[0029] The outer housing of the electrical connector 100 includes a metal housing 40 sleeved on the outside of the insulating body 10 and a metal bracket 50 welded to the top surface of the metal housing 40. The lateral sides of the metal bracket 50 are fixed to the circuit board. The metal housing 40 has a cylindrical structure and its rear end abuts against the base 11 of the insulating body 10. At the same time, the metal housing 40 and the insulating body 10 together form a mating cavity 101 for the insertion of the mating connector.

[0030] Specifically, the base 11 of the insulating body 10 is provided with a front abutment groove 111 at the front end in the longitudinal direction and a rear abutment groove 112 at the rear end in the longitudinal direction. The metal housing 40 is provided with a front stop 41 and a rear stop 42 protruding inward from the rear end. The insulating body 10 is inserted into the metal housing 40 from back to front in the longitudinal direction until the front stop 41 abuts against the front abutment groove 111, at which point the rear stop 42 is bent inward so that the rear stop 42 abuts against the rear abutment groove 112 in the front; thereby fixing the metal housing 40 to the insulating body 10.

[0031] The metal bracket 50 has a front shielding portion 51 covering the top surface of the metal housing 40 and a rear shielding portion 52 extending laterally from the longitudinal rear end of the front shielding portion 51. The rear shielding portion 52 at least partially covers the top surface of the base 11. The metal bracket 50 also has a front retaining foot 53 extending downward from the lateral sides of the front shielding portion 51 and a rear retaining foot 54 extending downward from the lateral sides of the rear shielding portion 52. Both the front retaining foot 53 and the rear retaining foot 54 are connected to the aforementioned circuit board.

[0032] In this invention, the insulating body 10 includes a first body 14 integrally injection molded onto the conductive terminal 20 and a second body 15 integrally injection molded onto the first body 14. The heads 24 of both the first terminal 201 and the second terminal 202 protrude from the longitudinal front end of the first body 14 and are embedded in the second body 15. The head 24 of the second terminal 202 extends longitudinally beyond the head 24 of the first terminal 201. The heads 24 of the first terminal 201 and the second terminal 202 are staggered and stacked longitudinally during the first injection molding process, so that the joint line after the second injection molding is a non-penetrating structure, that is, liquid cannot penetrate and flow in from the joint line, thereby avoiding the problem of liquid accumulation and short circuit caused by liquid flowing in from the penetrating joint line.

[0033] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. An electrical connector, comprising an insulating body, a plurality of conductive terminals fixed on the insulating body, and a metal housing sleeved on the outside of the insulating body, wherein the insulating body has a base and a tongue portion extending longitudinally forward from the base, the plurality of conductive terminals including first terminals and second terminals arranged in two rows laterally, each conductive terminal having a retaining portion fixed within the insulating body, a contact portion extending longitudinally forward from the retaining portion, and a head located at the longitudinal front end of the contact portion, the contact portions of the first terminals and the second terminals being exposed on the upper and lower surfaces of the tongue portion, respectively; characterized in that: The insulating body includes a first body that is injection molded onto the conductive terminal in one step and a second body that is injection molded onto the first body in a second step. The heads of the first terminal and the second terminal are both exposed at the longitudinal front end of the first body and embedded in the second body. The head of the second terminal extends longitudinally forward beyond the head of the first terminal.

2. The electrical connector as described in claim 1, characterized in that: The contact portion of the first terminal and the contact portion of the second terminal are respectively arranged in a vertical direction perpendicular to the longitudinal and transverse directions, and the projections of the heads of the first terminal and the second terminal in the vertical direction overlap each other.

3. The electrical connector as described in claim 2, characterized in that: The head of the first terminal is vertically positioned above the head of the second terminal, and the distance from the head of the first terminal to the head of the second terminal is less than the distance from the contact portion of the first terminal to the contact portion of the second terminal.

4. The electrical connector as described in claim 2, characterized in that: Each of the conductive terminals has a weld portion extending longitudinally backward from the retaining portion out of the insulating body, and the weld portions of the first terminal and the second terminal are arranged in a row transversely.

5. The electrical connector as described in claim 1, characterized in that: The electrical connector includes a shielding plate held within the insulating body, the shielding plate being disposed between the first terminal and the second terminal.

6. The electrical connector as described in claim 5, characterized in that: The first body, the first terminal, the second terminal, and the shielding sheet are integrally injection molded into one piece; the second body and the first body fixed to the first terminal, the second terminal, and the shielding sheet are integrally injection molded into one piece.

7. The electrical connector as claimed in claim 1, characterized in that: The metal shell has a cylindrical structure and its rear end abuts against the base of the insulating body, and the metal shell and the insulating body together form a mating cavity.

8. The electrical connector as claimed in claim 7, characterized in that: The base is provided with a front abutment groove at the longitudinal front end and a rear abutment groove at the longitudinal rear end. The metal housing is provided with a front stop and a rear stop protruding inward from the rear end. The front stop abuts against the front abutment groove rearward, and the rear stop abuts against the rear abutment groove forward.

9. The electrical connector as claimed in claim 7, characterized in that: The electrical connection also includes a metal bracket welded to the top surface of the metal housing, the lateral sides of which are fixed to a circuit board.

10. The electrical connector as claimed in claim 9, characterized in that: The metal bracket has a front shielding portion that covers the top surface of the metal housing and a rear shielding portion that extends laterally from the longitudinal rear end of the front shielding portion, the rear shielding portion at least partially covering the top surface of the base.

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