Plug connector

Abstract

The utility model discloses a plug connector, which comprises an insulating body, a conductive terminal accommodated in the insulating body and a metal shell sleeved on the periphery of the insulating body, the insulating body comprises an upper insulator, a lower insulator and an insulating shell, the upper insulator and the lower insulator are stacked with each other, the upper insulator and the lower insulator are inserted into the rear end of the insulating shell, and the metal shell is sleeved on the conductive terminal. The insulating shell is provided with a forward penetrating plugging cavity, the conductive terminals comprise an upper row of terminals fixedly held on the upper insulator and a lower row of terminals fixedly held on the lower insulator, and the front ends of the conductive terminals extend into the plugging cavity. The upper insulator is arranged on the upper row of terminals in an injection molding mode to form an upper terminal module, the lower insulator is arranged on the lower row of terminals in an injection molding mode to form a lower terminal module, and the upper terminal module and the lower terminal module are both formed in a secondary injection molding mode to enable the interiors to be completely sealed. The internal complete sealing of the terminal module is realized through secondary injection molding, so that the internal air tightness of the plug connector and the anti-corrosion capability of the conductive terminals are improved.

Description

Technical Field

[0001] This utility model relates to a plug connector, and more particularly to a plug connector for welding to cables. Background Technology

[0002] Existing plug connectors include an insulating body, two terminal modules, an intermediate shield, and a metal shell. Each terminal module has an insulating block and several terminals held in place by the insulating block. The two terminal modules, along with the intermediate shield, are assembled together within the insulating body. The metal shell is fitted over the outside of the insulating body. The terminals include at least one pair of high-speed differential signal terminals. However, existing plug connectors lack a seal due to their internal cavities, allowing external moisture to easily penetrate and accumulate, leading to corrosion and short circuits between the terminals.

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

[0004] The purpose of this utility model is to provide a plug connector in which the terminal module achieves complete internal sealing through secondary injection molding to prevent moisture from flowing into the interior.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a plug connector, comprising an insulating body, conductive terminals housed within the insulating body, and a metal shell sleeved around the outer periphery of the insulating body. The insulating body includes an upper insulator, a lower insulator, and an insulating shell stacked on top of each other. The upper and lower insulators are inserted into the rear end of the insulating shell, and the insulating shell has a forward-through insertion cavity. The conductive terminals include an upper row of terminals fixed to the upper insulator and a lower row of terminals fixed to the lower insulator, and the front end of each conductive terminal extends into the insertion cavity. The upper insulator is injection molded onto the upper row of terminals to form an upper terminal module, and the lower insulator is injection molded onto the lower row of terminals to form a lower terminal module. Both the upper and lower terminal modules are formed by secondary injection molding, and the interiors of the upper and lower terminal modules are completely sealed.

[0006] In a preferred embodiment, the conductive terminal is provided with a retaining portion, a contact portion extending forward from the retaining portion, and a welding portion extending rearward from the retaining portion. The retaining portion of the upper row of terminals is retained in the upper insulator, the retaining portion of the lower row of terminals is retained in the lower insulator, and the contact portion of the upper row of terminals and the lower row of terminals extends into the insertion cavity of the insulating housing.

[0007] In a preferred embodiment, the upper insulator is provided with a first upper insulator that is injection molded in one piece to the retaining portion of the upper row of terminals, and the first upper insulator is provided with an upper groove that at least partially exposes the retaining portion of the upper row of terminals; the lower insulator is provided with a first lower insulator that is injection molded in one piece to the retaining portion of the lower row of terminals, and the first lower insulator is provided with a lower groove that at least partially exposes the retaining portion of the lower row of terminals.

[0008] In a preferred embodiment, the upper insulator is provided with a second upper insulator formed by secondary injection molding, the second upper insulator filling the upper groove of the first upper insulator; the lower insulator is provided with a second lower insulator formed by secondary injection molding, the second lower insulator filling the lower groove of the first lower insulator.

[0009] In a preferred embodiment, the insulating body is provided with a cable placement platform at the rear end. The cable placement platform includes an upper placement surface at the rear end of the upper insulator and a lower placement surface at the rear end of the lower insulator. The upper placement surface and the lower placement surface are disposed opposite to each other, and the welding portion of the upper row of terminals is exposed on the upper placement surface, while the welding portion of the lower row of terminals is exposed on the lower placement surface.

[0010] In a preferred embodiment, the solder portion of the conductive terminal is used to solder to a corresponding core wire of a cable.

[0011] In a preferred embodiment, the insulating body is provided with several insulating ribs that protrude outward from the upper and lower surfaces of the cable placement platform. The insulating ribs are located between the welding parts to separate two adjacent welding parts.

[0012] In a preferred embodiment, the plug connector includes a metal locking member located between the upper terminal module and the lower terminal module. The locking member has a main board portion clamped between the upper insulator and the lower insulator, locking arms extending forward from both ends of the main board portion, and feet extending rearward from both ends of the main board portion. The locking arms extend into the insertion cavity and are located between the contact portions of the upper row of terminals and the lower row of terminals.

[0013] In a preferred embodiment, the upper row of terminals has two upper grounding terminals located on the outermost side, and the lower row of terminals has two lower grounding terminals located on the outermost side. The foot of the locking member is located between the welded portions of the upper grounding terminals and the lower grounding terminals, and the foot of the locking member, the welded portions of the upper grounding terminals and the welded portions of the lower grounding terminals are welded together by spot welding.

[0014] In a preferred embodiment, the lower terminal is provided with a connecting portion, which is connected between the welding portions of the two lower grounding terminals to connect the two lower grounding terminals together.

[0015] Compared with existing technologies, this utility model has the following advantages: the upper insulator is injection molded onto the upper row of terminals to form an upper terminal module, and the lower insulator is injection molded onto the lower row of terminals to form a lower terminal module. Both the upper and lower terminal modules are formed by secondary injection molding, and their interiors are completely sealed. Achieving complete sealing of the terminal module interior through secondary injection molding improves the internal airtightness of the plug connector and the corrosion resistance of the conductive terminals, thus reducing the corrosive effects caused by moisture entering the plug connector. Attached Figure Description

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

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

[0018] Figure 3 yes Figure 2 A three-dimensional schematic diagram of the terminal module in the plug connector shown.

[0019] Figure 4 yes Figure 3 The diagram shows a partial exploded view of the terminal module.

[0020] Figure 5 yes Figure 4 An exploded view of the terminal module shown.

[0021] Figure 6 yes Figure 4 An exploded view of the conductive terminals and locking components in the terminal module shown. Detailed Implementation

[0022] Please see Figures 1 to 6 As shown, a preferred embodiment of the present invention discloses a plug connector 100, which is a Type C plug connector supporting high-speed data transmission. The plug connector 100 is used for electrical connection with a cable and includes an insulating body 10, conductive terminals 20 housed within the insulating body 10, and a metal housing 30 sleeved on the outer periphery of the insulating body 10.

[0023] Please see Figures 2 to 4As shown, the insulating body 10 includes an upper insulator 11 and a lower insulator 12 stacked on top of each other, and an insulating shell 13. The upper insulator 11 and the lower insulator 12 are inserted into the rear end of the insulating shell 13, and the insulating shell 13 is provided with a forward-through insertion cavity 101 for the insertion of a mating connector.

[0024] Combination Figure 5 and Figure 6 As shown, the conductive terminal 20 includes several upper row terminals 21 fixed to the upper insulator 11 and several lower row terminals 22 fixed to the lower insulator 12, and the front end of the conductive terminal 20 extends into the insertion cavity 101. Specifically, each conductive terminal 20 is provided with a holding portion 201, a contact portion 202 extending forward from the holding portion 201, and a welding portion 203 extending rearward from the holding portion 202. The holding portion 201 of the upper row terminals 21 is fixed in the upper insulator 11, and the holding portion 201 of the lower row terminals 22 is fixed in the lower insulator 12. At the same time, the contact portions 202 of the upper row terminals 21 and the lower row terminals 23 both extend forward into the insertion cavity 101 of the insulating housing 13 to contact the mating terminals of the mating connector; the welding portions 203 of the upper row terminals 21 and the lower row terminals 23 extend rearward out of the insulating housing 13.

[0025] The insulating body 10 is provided with a cable placement platform 102 located at the rear end. The cable placement platform 102 includes an upper placement surface located at the rear end of the upper insulator 11 and a lower placement surface located at the rear end of the lower insulator 12, with the upper and lower placement surfaces facing each other. The welding portions 203 of the upper row terminals 21 are exposed on the upper placement surface, and the welding portions 203 of the lower row terminals 22 are exposed on the lower placement surface. Thus, the core wires of the cable can be directly welded to the corresponding welding portions 203 of the upper row terminals 21 and the lower row terminals 23. In this embodiment, the welding portions 203 of the conductive terminals 20 are used to weld to the corresponding core wires of the cable, that is, the welding portions 203 of the conductive terminals 20 do not need to be welded to the PCB board for transition, but are directly welded to the core wires of the cable.

[0026] Furthermore, the insulating body 10 is also provided with several insulating ribs 103 protruding outward from the upper and lower surfaces of the cable placement platform 102. The insulating ribs 103 are located between the welding parts 203 of the conductive terminals 20 to isolate two adjacent welding parts 203, thereby preventing short circuit connection and signal interference between adjacent welding parts 203.

[0027] The plug connector 100 further includes a metal locking member 40 located between the upper insulator 11 and the lower insulator 12. The locking member 40 has a main board portion 41 clamped between the upper insulator 11 and the lower insulator 12, locking arms 42 extending forward from both ends of the main board portion 41, and feet 43 extending rearward from both ends of the main board portion 42. The two locking arms 42 extend forward into the insertion cavity 101 and are located between the contact portions 202 of the upper row of terminals 21 and the lower row of terminals 22.

[0028] Meanwhile, the upper row of terminals 21 has two outermost upper grounding terminals 21G, and the lower row of terminals 22 has two outermost lower grounding terminals 22G. The foot 43 of the locking member 40 is located between the welding portions 203 of the upper grounding terminals 21G and the lower grounding terminals 22G, and the foot 43 of the locking member 40, the welding portions 203 of the upper grounding terminals 21G and the welding portions 203 of the lower grounding terminals 22G are welded together by spot welding. This allows the upper and lower rows of terminals and the locking member 40 to maintain mutual conductivity without being welded to the PCB board. The lower row of terminals 22 also has a connecting portion 221, which connects between the welding portions 203 of the two lower grounding terminals 22G to connect the two lower grounding terminals 22G together to form a whole.

[0029] In this embodiment, the upper insulator 11 is injection molded onto the upper row of terminals 21 to form the upper terminal module 50, and the lower insulator 12 is injection molded onto the lower row of terminals 22 to form the lower terminal module 60. The locking member 40 is located between the upper terminal module 50 and the lower terminal module 60, that is, the upper terminal module 50 and the lower terminal module 60 clamp the locking member 40 to form the terminal module. Both the upper terminal module 50 and the lower terminal module 60 are formed by secondary injection molding, and the interiors of the upper terminal module 50 and the lower terminal module 60 are completely sealed. Therefore, by achieving complete sealing of the interior of the terminal module through secondary injection molding, the internal airtightness of the plug connector 100 and the corrosion resistance of the conductive terminals 20 are improved, that is, the corrosion effect caused by moisture flowing into the interior of the plug connector 100 is reduced.

[0030] Specifically, the upper insulator 11 has a first upper insulator 111 formed in one injection molding of the holding portion 201 of the upper row of terminals 21 and a second upper insulator 112 formed in two injection moldings. The first upper insulator 111 has an upper groove 113 that at least partially exposes the holding portion 201 of the upper row of terminals 21, and the second upper insulator 112 fills the upper groove 113 of the first upper insulator 111. Similarly, the lower insulator 12 has a first lower insulator 121 formed in one injection molding of the holding portion 201 of the lower row of terminals 22 and a second lower insulator 122 formed in two injection moldings. The first lower insulator 121 has a lower groove 123 that at least partially exposes the holding portion 201 of the lower row of terminals 22, and the second lower insulator 122 fills the lower groove 123 of the first lower insulator 121.

[0031] In this invention, the upper insulator 11 is injection molded onto the upper row of terminals 21 to form the upper terminal module 50, and the lower insulator 12 is injection molded onto the lower row of terminals 22 to form the lower terminal module 60. Both the upper terminal module 50 and the lower terminal module 60 are formed by secondary injection molding, and their interiors are completely sealed. This secondary injection molding achieves complete sealing of the terminal module interior, thereby improving the internal airtightness of the plug connector 100 and the corrosion resistance of the conductive terminals 20, thus reducing the corrosive effects caused by moisture inflow into the plug connector 100.

[0032] 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. A plug connector, comprising an insulating body, conductive terminals housed within the insulating body, and a metal housing sleeved around the outer periphery of the insulating body, wherein the insulating body includes an upper insulator and a lower insulator stacked on top of each other, and an insulating housing, the upper insulator and the lower insulator being inserted into the rear end of the insulating housing, and the insulating housing having a forward-through insertion cavity, the conductive terminals including an upper row of terminals fixed to the upper insulator and a lower row of terminals fixed to the lower insulator, and the front end of each conductive terminal extending into the insertion cavity; characterized in that: The upper insulator is injection molded onto the upper row of terminals to form an upper terminal module, and the lower insulator is injection molded onto the lower row of terminals to form a lower terminal module. Both the upper terminal module and the lower terminal module are formed by secondary injection molding, and the interiors of the upper terminal module and the lower terminal module are completely sealed.

2. The plug connector as described in claim 1, characterized in that: The conductive terminal is provided with a retaining portion, a contact portion extending forward from the retaining portion, and a welding portion extending backward from the retaining portion. The retaining portion of the upper row of terminals is retained in the upper insulator, and the retaining portion of the lower row of terminals is retained in the lower insulator. The contact portions of the upper row of terminals and the lower row of terminals extend into the insertion cavity of the insulating housing.

3. The plug connector as described in claim 2, characterized in that: The upper insulator is provided with a first upper insulator that is injection molded in one piece into the retaining portion of the upper row of terminals, and the first upper insulator is provided with an upper groove that at least partially exposes the retaining portion of the upper row of terminals; the lower insulator is provided with a first lower insulator that is injection molded in one piece into the retaining portion of the lower row of terminals, and the first lower insulator is provided with a lower groove that at least partially exposes the retaining portion of the lower row of terminals.

4. The plug connector as described in claim 3, characterized in that: The upper insulator is provided with a second upper insulator formed by secondary injection molding, and the second upper insulator is filled in the upper groove of the first upper insulator; The lower insulator is provided with a second lower insulator formed by secondary injection molding, and the second lower insulator fills the lower groove of the first lower insulator.

5. The plug connector as described in claim 2, characterized in that: The insulating body is provided with a cable placement platform at the rear end. The cable placement platform includes an upper placement surface at the rear end of the upper insulator and a lower placement surface at the rear end of the lower insulator. The upper placement surface and the lower placement surface are arranged opposite to each other, and the welding part of the upper row of terminals is exposed on the upper placement surface, while the welding part of the lower row of terminals is exposed on the lower placement surface.

6. The plug connector as described in claim 5, characterized in that: The solder portion of the conductive terminal is used to solder to the corresponding core wire of a cable.

7. The plug connector as described in claim 5, characterized in that: The insulating body is provided with several insulating ribs that protrude outward from the upper and lower surfaces of the cable placement platform. The insulating ribs are located between the welding parts to separate two adjacent welding parts.

8. The plug connector as described in claim 2, characterized in that: The plug connector includes a metal locking member located between the upper terminal module and the lower terminal module. The locking member has a main board portion clamped between the upper insulator and the lower insulator, locking arms extending forward from both ends of the main board portion, and feet extending rearward from both ends of the main board portion. The locking arms extend into the insertion cavity and are located between the contact portions of the upper row of terminals and the lower row of terminals.

9. The plug connector as claimed in claim 8, characterized in that: The upper row of terminals has two upper grounding terminals located on the outermost side, and the lower row of terminals has two lower grounding terminals located on the outermost side. The foot of the locking member is located between the welded portions of the upper grounding terminals and the lower grounding terminals, and the foot of the locking member, the welded portions of the upper grounding terminals and the welded portions of the lower grounding terminals are welded together by spot welding.

10. The plug connector as claimed in claim 9, characterized in that: The lower terminal is provided with a connecting part, which is connected between the welding parts of the two lower grounding terminals to connect the two lower grounding terminals together.

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