Electric connector
By adding a barrier structure between the conductive terminal contacts of the USB Type-C connector, the corrosion problem of conductive terminals caused by liquid ingress is solved, achieving a waterproof effect for the electrical connector and ensuring the safety of the circuit board.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINKCONN ELECTRONICS
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing USB Type-C connectors are prone to corrosion between the conductive terminal contacts due to liquid ingress during use, causing short circuits on the internal circuit boards of electronic products.
A partition structure is added between the contact parts of the conductive terminals. The height of the partition is not less than the height of the contact part exposed on the tongue plate, so as to block the liquid flow and prevent corrosion of the overlap between the conductive terminals.
It effectively blocks the flow of liquid, prevents corrosion between conductive terminals, ensures the normal operation of electrical connectors, and avoids damage to electronic products.
Smart Images

Figure CN224249002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector that can be inserted in both directions. 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 and extending forward from the retaining portion and exposed on the surface of the tongue. However, users may accidentally spill liquids such as coffee or tea, causing liquid to enter the connector. When liquid enters the connector, it remains in the contact area of the tongue and penetrates between the contact portions of the conductive terminals, easily causing lap corrosion between adjacent contact portions of the conductive terminals. This can lead to short circuits and burnout of the internal circuit board of the electronic product.
[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 that has a barrier between conductive terminals to serve as a barrier and isolation.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an electrical connector includes an insulating body and a plurality of conductive terminals fixed to the insulating body. The insulating body has a main body portion, a tongue portion extending longitudinally forward from the main body portion, and a stepped portion connecting the main body portion and the tongue portion. The conductive terminals have a holding portion fixed to the main body portion, a contact portion extending longitudinally forward from the holding portion, and a welding portion extending longitudinally backward from the holding portion out of the main body portion. The contact portions of the conductive terminals are exposed on the upper and lower surfaces of the tongue portion. The insulating body has a plurality of partitions protruding outward from the upper and lower surfaces of the tongue portion. Each pair of adjacent contact portions of the conductive terminals is provided with a partition, and the height of the partition on the tongue portion is not less than the height of the contact portion exposed on the tongue portion.
[0006] In a preferred embodiment, the insulating body includes an upper insulator and a lower insulator assembled together, and the conductive terminals include an upper row of conductive terminals and a lower row of conductive terminals arranged in two rows along the transverse direction. The upper insulator is injection molded onto the upper row of conductive terminals to form an upper terminal module, and the lower insulator is injection molded onto the lower row of conductive terminals to form a lower terminal module.
[0007] In a preferred embodiment, the electrical connector includes a metal shielding sheet located between the upper terminal module and the lower terminal module, and the insulating body further includes a third insulator injection molded on the upper terminal module, the lower terminal module and the shielding sheet.
[0008] In a preferred embodiment, the electrical connector includes a metal retaining member fixed to the tongue portion. The retaining member has a front end portion extending laterally and a retaining portion extending longitudinally rearward from both sides of the front end portion. The front end portion is embedded in the longitudinal front end of the tongue portion, and the retaining portion is exposed on both lateral sides of the tongue portion.
[0009] In a preferred embodiment, the lateral sides of the shielding sheet abut against the inner surface of the fastening portion of the fastening member.
[0010] In a preferred embodiment, the electrical connector includes a grounding member fixed to the insulating body. The grounding member includes an upper grounding member covering the outside of the upper terminal module and a lower grounding member covering the outside of the lower terminal module. The rear sections of the upper grounding member and the lower grounding member are connected to each other and embedded in the main body of the insulating body.
[0011] In a preferred embodiment, the front sections of the upper grounding member and the lower grounding member are exposed on the upper and lower surfaces of the stepped portion of the insulating body.
[0012] In a preferred embodiment, the electrical connector includes a mounting member fixed to the main body portion of the insulating body. The mounting member has a flat plate portion attached to the longitudinal front end face of the main body portion and a connecting portion extending longitudinally rearward from the flat plate portion. The flat plate portion has a centrally located embedded portion, which is embedded in the main body portion and connected to the rear section of the upper grounding member and the lower grounding member.
[0013] In a preferred embodiment, the electrical connector includes an insulating shell sleeved on the longitudinal front end of the insulating body, the insulating shell having a longitudinally penetrating receiving cavity, the stepped portion and the tongue portion protruding into the receiving cavity, and the tongue portion protruding forward from the front end face of the insulating shell.
[0014] In a preferred embodiment, the electrical connector includes a protective bracket and a waterproof component that are fixed to the insulating shell. The protective bracket and the insulating shell are integrally injection molded, and the waterproof component is attached to the longitudinal front end face of the protective bracket and the insulating shell.
[0015] Compared with the prior art, this utility model has the following beneficial effects: the insulating body is provided with several partitions protruding outward from the upper and lower surfaces of the tongue plate. Each pair of adjacent contact parts in the conductive terminal is provided with the aforementioned partitions, and the height of the partitions on the tongue plate is not less than the height of the contact parts exposed on the tongue plate. This utility model adds a partition structure between the contact parts of the conductive terminals. When the liquid level on the tongue plate is lower than the height of the contact parts exposed on the tongue plate, the partitions can block the flow of liquid, thereby playing a blocking and isolating role, ensuring that the conductive terminals do not overlap and cause corrosion. 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 A three-dimensional schematic diagram of the electrical connector from another angle.
[0018] Figure 3 yes Figure 1 The diagram shows an exploded view of the electrical connector with the terminal removal module.
[0019] Figure 4 yes Figure 1 The diagram shows a cross-sectional view of the electrical connector.
[0020] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the terminal module in the electrical connector shown.
[0021] Figure 6 yes Figure 5 An exploded view of the terminal module shown.
[0022] Figure 7 yes Figure 5 The front view of the terminal module shown. Detailed Implementation
[0023] Please see Figures 1 to 7 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.
[0024] Please see Figures 5 to 7As shown, the terminal module includes an insulating body 10 and a plurality of conductive terminals 20 fixed on the insulating body 10. The insulating body 10 has a main body portion 11 extending laterally, a tongue portion 12 extending longitudinally forward from the main body portion 11, and a stepped portion 13 connecting the main body portion 11 and the tongue portion 12. The stepped portion 13 extends longitudinally forward from the main body portion 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.
[0025] The conductive terminal 20 is provided with a holding portion 21 fixed to the main body portion 11, a contact portion 22 extending longitudinally forward from the holding portion 21, and a welding portion 23 extending longitudinally backward from the holding portion 21 out of the main body portion 11. The contact portion 22 of the conductive terminal 20 is exposed on the upper and lower surfaces of the tongue portion 12. In this embodiment, the conductive terminal 20 includes an upper row of conductive terminals 201 and a lower row of conductive terminals 202 arranged in two rows laterally. The number of upper row of conductive terminals 201 and lower row of conductive terminals 202 is the same, and the arrangement order of the upper row of conductive terminals 201 and lower row of conductive terminals 202 is reversed, so that the electrical connector 100 can realize the function of being plugged into the mating connector in both directions.
[0026] The insulating body 10 includes an upper insulator 101 and a lower insulator 102 assembled together. The upper insulator 101 is injection molded onto the upper row of conductive terminals 201 to form an upper terminal module, and the lower insulator 102 is injection molded onto the lower row of conductive terminals 202 to form a lower terminal module. The upper and lower terminal modules are arranged symmetrically vertically. The contact portion 22 of the upper row of conductive terminals 201 is exposed on the upper surface of the tongue portion 12, and the contact portion 22 of the lower row of conductive terminals 202 is exposed on the lower surface of the tongue portion 12. The welding portion 23 of the upper row of conductive terminals 201 bends upward and extends downward, while the welding portion 23 of the lower row of conductive terminals 202 bends downward and extends downward for welding to the surface of the circuit board.
[0027] The electrical connector 100 includes a metal shielding sheet 30 located between the upper terminal module and the lower terminal module, used to shield signal crosstalk between the upper and lower terminal modules. Specifically, the shielding sheet 30 is sandwiched between the upper and lower terminal modules and located between the upper row of conductive terminals 201 and the lower row of conductive terminals 202, thereby shielding signal crosstalk between the upper row of conductive terminals 201 and the lower row of conductive terminals 202. The insulating body 10 also includes a third insulator 103 injection molded onto the upper terminal module, the lower terminal module, and the shielding sheet 30.
[0028] The insulating body 10 is provided with several partitions 14 protruding outward from the upper and lower surfaces of the tongue plate portion 12. Each pair of adjacent contact portions 22 in the conductive terminal 20 is provided with such partitions 14, and the height of the partitions 14 on the tongue plate portion 12 is not less than the height of the contact portion 22 exposed on the tongue plate portion 12. That is, the height of the partitions 14 is equal to or greater than the height of the conductive terminal 20 exposed on the tongue plate portion 12, thereby playing a blocking and isolating role between the contact portions 22 of the conductive terminal 20.
[0029] The electrical connector 100 includes a grounding member 40 fixed to the insulating body 10. The grounding member 40 includes an upper grounding member 41 covering the outside of the upper terminal module and a lower grounding member 42 covering the outside of the lower terminal module. The rear sections of the upper grounding member 41 and the lower grounding member 42 are connected to each other and embedded in the main body 11 of the insulating body 10. The front sections of the upper grounding member 41 and the lower grounding member 42 are exposed on the upper and lower surfaces of the stepped portion 13 of the insulating body 10 for mating with the grounding member of the mating connector.
[0030] The electrical connector 100 includes a metal retaining member 50 fixed to the tongue portion 12. The retaining member 50 has a front end portion 51 extending laterally and retaining portions 52 extending longitudinally rearward from both sides of the front end portion 51. The front end portion 51 is embedded in the longitudinal front end of the tongue portion 12, and the retaining portions 52 protrude from both sides of the tongue portion 12 and are used for fastening and connecting with a mating connector. Furthermore, the lateral sides of the shielding sheet 30 abut against the inner surface of the retaining portions 52 of the retaining member 50, thereby enhancing the shielding effect of the shielding sheet 30.
[0031] The electrical connector 100 includes a mounting member 60 fixed to the main body 11 of the insulating body 10. The mounting member 60 has a flat plate portion 61 attached to the longitudinal front end face of the main body 11 and a connecting portion 62 extending longitudinally rearward from the flat plate portion 61. The connecting portion 62 is used for mounting to the circuit board. The flat plate portion 61 has a centrally located embedded portion 611, which is embedded in the main body 11 and connected to the rear section of the upper grounding member 41 and the lower grounding member 42 to enhance the shielding effect.
[0032] Combination Figures 2 to 4As shown, the outer shell of the electrical connector 100 includes an insulating outer shell 70 sleeved on the longitudinal front end of the insulating body 10 of the terminal module, a protective bracket 80 fixed to the insulating outer shell 70, and a waterproof component 90. The insulating outer shell 70 has a longitudinally penetrating receiving cavity 71 and guide cavities 72 located on both transverse sides of the receiving cavity 71. The stepped portion 13 and the tongue portion 12 protrude into the receiving cavity 71, and the tongue portion 12 protrudes forward from the front end face of the insulating outer shell 70. The guide cavity 72 cooperates with the guide post of the mating connector to guide the insertion of the mating connector. The protective bracket 80 is integrally injection molded with the insulating outer shell 70, and the bottom surface of the protective bracket 80 is connected to the flat plate portion 61 of the mounting component 60. The waterproof component 90 is attached to the longitudinal front end face of the protective bracket 80 and the insulating outer shell 70 to improve the overall waterproof effect of the electrical connector 100.
[0033] In this invention, the insulating body 10 is provided with several partitions 14 protruding outward from the upper and lower surfaces of the tongue plate portion 12. Each pair of adjacent contact portions 22 in the conductive terminal 20 is provided with one of these partitions 14, and the height of the partition 14 on the tongue plate portion 12 is not less than the height of the contact portion 22 exposed above the tongue plate portion 12. This invention adds a partition structure between the contact portions 22 of the conductive terminal 20. When the liquid level on the tongue plate portion 12 is lower than the height of the contact portion 22 exposed above the tongue plate portion 12, the partition 14 can block the flow of the liquid, thereby playing a blocking and isolating role and ensuring that the conductive terminals 20 do not overlap and cause corrosion.
[0034] 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 and a plurality of conductive terminals fixed to the insulating body, the insulating body having a main body portion, a tongue portion extending longitudinally forward from the main body portion, and a stepped portion connecting the main body portion and the tongue portion; the conductive terminals having a holding portion fixed to the main body portion, a contact portion extending longitudinally forward from the holding portion, and a solder portion extending longitudinally rearward from the holding portion out of the main body portion, the contact portion of the conductive terminals being exposed on the upper and lower surfaces of the tongue portion; characterized in that: The insulating body is provided with several partitions that protrude outward from the upper and lower surfaces of the tongue plate portion. Each pair of adjacent contact portions in the conductive terminal is provided with the partitions, and the height of the partitions on the tongue plate portion is not less than the height of the contact portion exposed on the tongue plate portion.
2. The electrical connector as described in claim 1, characterized in that: The insulating body includes an upper insulator and a lower insulator assembled together. The conductive terminals include an upper row of conductive terminals and a lower row of conductive terminals arranged in two rows along the transverse direction. The upper insulator is injection molded onto the upper row of conductive terminals to form an upper terminal module, and the lower insulator is injection molded onto the lower row of conductive terminals to form a lower terminal module.
3. The electrical connector as described in claim 2, characterized in that: The electrical connector includes a metal shielding sheet located between the upper terminal module and the lower terminal module, and the insulating body also includes a third insulator injection molded on the upper terminal module, the lower terminal module and the shielding sheet.
4. The electrical connector as described in claim 3, characterized in that: The electrical connector includes a metal retainer fixed to the tongue portion. The retainer has a front end extending laterally and a retaining portion extending longitudinally rearward from both sides of the front end portion. The front end is embedded in the longitudinal front end of the tongue portion, and the retaining portion is exposed on both lateral sides of the tongue portion.
5. The electrical connector as described in claim 4, characterized in that: The lateral sides of the shielding sheet abut against the inner surface of the fastening portion of the fastening member.
6. The electrical connector as described in claim 3, characterized in that: The electrical connector includes a grounding member fixed to the insulating body. The grounding member includes an upper grounding member covering the outside of the upper terminal module and a lower grounding member covering the outside of the lower terminal module. The rear sections of the upper grounding member and the lower grounding member are connected to each other and embedded in the main body of the insulating body.
7. The electrical connector as claimed in claim 6, characterized in that: The front sections of the upper grounding member and the lower grounding member are exposed on the upper and lower surfaces of the stepped portion of the insulating body.
8. The electrical connector as claimed in claim 6, characterized in that: The electrical connector includes a mounting member fixed to the main body portion of the insulating body. The mounting member has a flat plate portion attached to the longitudinal front end face of the main body portion and a connecting portion extending longitudinally rearward from the flat plate portion. The flat plate portion has a centrally located embedded portion, which is embedded in the main body portion and connected to the rear section of the upper grounding member and the lower grounding member.
9. The electrical connector as claimed in claim 1, characterized in that: The electrical connector includes an insulating shell sleeved on the longitudinal front end of the insulating body. The insulating shell has a longitudinally penetrating receiving cavity. The stepped portion and the tongue portion protrude into the receiving cavity, and the tongue portion protrudes forward from the front end face of the insulating shell.
10. The electrical connector as claimed in claim 9, characterized in that: The electrical connector includes a protective bracket and a waterproof component that are fixed to the insulating shell. The protective bracket and the insulating shell are integrally injection molded, and the waterproof component is attached to the longitudinal front end face of the protective bracket and the insulating shell.