CN117543264A

CN117543264A - Socket electric connector

Info

Publication number: CN117543264A
Application number: CN202210918043.2A
Authority: CN
Inventors: 李玉彬; 廖管; 王淑芬
Original assignee: Advanced Connectek Shenzhen Ltd
Current assignee: Advanced Connectek Shenzhen Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2024-02-09

Abstract

The invention relates to a socket electric connector, which comprises an insulating main body, a plurality of socket terminals and a shielding shell; a hollow part is arranged between the base of the insulating main body and the tongue piece; each connecting section of the socket terminals penetrates through the base and the tongue piece and is exposed out of the hollow part; the shielding shell covers the hollow part to form a glue filling space in the hollow part, and is provided with a glue filling opening corresponding to the glue filling space; when the glue filling opening is filled with the sealing body, the sealing body is sealed between the insulating main body and the plurality of socket terminals, so that the waterproof effect is achieved.

Description

Socket electric connector

Technical Field

An electrical connector, in particular to a socket electrical connector.

Background

The transmission interface specifications of the electrical connector are quite various, such as HDMI or universal serial bus (Universal Serial Bus, simply referred to as USB), and USB is increasingly used by the public, and the USB2.0 transmission specification is developed to the current USB3.0 transmission specification with a faster transmission speed.

The shape, structure, terminal contact mode, terminal number, distance (Pitch) of each terminal and distribution (Pin Assignment) of each terminal of the existing USB Type-C electric connector are different from those of the existing USB electric connector. The current USB Type-C socket electric connector comprises a plurality of flat terminals arranged on a rubber core, wherein the outer part of the rubber core is covered with an outer iron shell and other structures; however, the waterproof glue is generally dispensed at the tail end of the glue core, so that the waterproof effect between the glue core and the outer iron shell is achieved, but the problem that water vapor permeates from gaps between the glue core and the plurality of flat terminals cannot be prevented, and particularly, after the electric connector is heated by the tin furnace, gaps are generated between the glue core and the plurality of flat terminals due to thermal expansion, so that the waterproof function is invalid.

Disclosure of Invention

The socket electric connector is realized by the following technical scheme: a socket electrical connector is provided, comprising an insulating body, a plurality of socket terminals and a shielding shell; the insulating main body comprises a base, a tongue piece and a hollowed-out part, wherein the tongue piece is positioned on one side of the base, and the hollowed-out part is positioned between the base and the tongue piece; the socket terminals are arranged on the base and the tongue piece, each socket terminal comprises a contact section, a connecting section and a welding section, each contact section extends from one side of each connecting section and is positioned on two sides of the tongue piece, each welding section extends from the other side of each connecting section and penetrates through the other side of the base, and each connecting section penetrates through the base and the tongue piece and is exposed out of the hollowed-out part; the shielding shell comprises a containing groove and an inserting port communicated with the containing groove, the insulating main body is arranged in the containing groove, the shielding shell covers the hollowed-out part and forms a glue filling space in the hollowed-out part, the shielding shell is provided with a glue filling opening, and the glue filling opening corresponds to the glue filling space.

Preferably, the socket electric connector further comprises a sealing body, the sealing body is located in the glue filling space and filled in the hollow part, and the sealing body wraps each connecting section located in the hollow part.

Preferably, the shielding shell is provided with an inner shell and an outer shell which are combined, both sides of the base are provided with clamping parts, both sides of the outer shell are provided with clamping parts, the clamping parts are clamped on the clamping parts, the outer shell is provided with a glue filling opening, the inner shell is provided with a concave part, and the concave part corresponds to the glue filling opening.

Preferably, the plurality of socket terminals have a first row of terminals and a second row of terminals in a double row, the tongue is a separate component from the base, the tongue has a first tongue core coupled to the first row of terminals, a second tongue core coupled to the second row of terminals, and a third tongue core coupled to the first tongue core and the second tongue core, and the base has a first base core coupled to the second row of terminals, a second base core coupled to the second row of terminals, and a third base core coupled to the first base core and the second base core.

Preferably, the third tongue piece rubber core has a tongue piece ring protrusion, the third base rubber core has a base ring protrusion, the base ring protrusion contacts the inner wall of the inner shell, the glue filling space is located between the tongue piece ring protrusion and the base ring protrusion, the tongue piece has a step portion, the step portion is adjacent to the base, and the tongue piece ring protrusion is located at the step portion.

Preferably, the socket electric connector further comprises a stop piece sleeved on the third tongue piece rubber core, the tongue piece ring protruding portion contacts with the inner wall of the stop piece, the outer wall of the stop piece contacts with the inner wall of the inner shell, and the side face of the stop piece is located in the containing groove and faces the plug-in port.

Preferably, the first base rubber core is provided with an inclined part corresponding to the rubber filling opening.

Preferably, the socket electric connector further comprises a waterproof gasket sleeved outside the shielding shell and adjacent to the plug-in port.

Preferably, the socket electric connector further comprises a fixing piece combined with the outside of the shielding shell and adjacent to the plug-in port, the fixing piece is provided with an arc-shaped groove, and the waterproof gasket is arranged in the arc-shaped groove.

Preferably, the receptacle electrical connector further comprises a ground tab located on the insulative body between the plurality of receptacle terminals in the double row.

In summary, according to some embodiments, a hollow portion is disposed between the base and the tongue piece of the insulating body, each connection section of the plurality of socket terminals is exposed in the hollow portion, the shielding shell outside the insulating body has a glue filling opening, the shielding shell covers the hollow portion to form a glue filling space, the glue filling opening corresponds to the glue filling space and is filled with a sealing body, and the sealing body is disposed between the base and the tongue piece and is sealed between the insulating body and the plurality of socket terminals, so as to achieve a waterproof effect.

Drawings

Fig. 1 is an external view of a socket electrical connector according to some embodiments, in which a glue-filling opening of a shielding housing is exposed to a sealing body.

Fig. 2 is an exploded view of a receptacle electrical connector, according to some embodiments, without the seal.

Fig. 3 is an exploded view of a receptacle terminal, a ground plate, and a three-piece core, according to some embodiments.

Fig. 4 is a top exploded view of a receptacle electrical connector, not showing a seal, according to some embodiments.

Fig. 5 is a schematic top view of a receptacle electrical connector, not showing a seal, according to some embodiments.

Fig. 6 is a schematic top view of a receptacle electrical connector, according to some embodiments, showing a seal.

FIG. 7 is a schematic cross-sectional view of the container labeled A-A in FIG. 5, without the sealing body filled.

FIG. 8 is a schematic cross-sectional view of the container labeled A-A in FIG. 6, with the sealing body filled.

FIG. 9 is a schematic cross-sectional view of the portion B-B shown in FIG. 5, without the sealing body being filled.

FIG. 10 is a schematic cross-sectional view of the part B-B shown in FIG. 6, in a state of being filled with a sealing body.

Symbol description

100 socket electric connector

1 insulating body

11 base

111 first base rubber core

112 second base rubber core

113 third base rubber core

115 base ring boss

119 fastening part

12 tongue piece

121 first tongue piece rubber core

122 second tongue piece rubber core

123 third tongue piece rubber core

125 tongue ring protrusion

13 hollow part

14 inclined portion

15 step portion

2 socket terminal

21 high-speed signal terminal

22 low-speed signal terminal

23 Power supply terminal

24 ground terminal

25 contact section

26 connecting section

27 welding section

3 grounding plate

4 shielding case

41 inner housing

411 concave part

42 outer casing

421 glue filling opening

429 clip part

43 accommodating groove

44 plug-in interface

45 glue filling space

5 stop piece

5a side surface

7 fixing piece

71 arc-shaped groove

8 waterproof gasket

9, sealing body.

Detailed Description

Referring to fig. 1 to 3, fig. 1 is an external view of a socket electrical connector 100, fig. 2 is an exploded view of the socket electrical connector 100, and fig. 3 is an exploded view of a socket terminal 2 and a ground plate 3. In some embodiments, the socket electrical connector 100 is a USB (Type-C) interface specification, but not limited thereto, and in some embodiments, the socket electrical connector 100 may be an HDMI interface specification. The receptacle connector 100 includes an insulating body 1, a plurality of receptacle terminals 2, and a shield case 4.

The insulating main body 1 comprises a base 11, a tongue piece 12 and a hollowed-out part 13, wherein the tongue piece 12 is positioned on one side of the base 11, and the hollowed-out part 13 is positioned between the base 11 and the tongue piece 12.

The socket terminals 2 are disposed on the base 11 and the tongue 12, each socket terminal 2 includes a contact section 25, a connection section 26 and a soldering section 27, each contact section 25 extends from one side of each connection section 26 and is located on two sides of the tongue 12, each soldering section 27 extends from the other side of each connection section 26 and is penetrated from the other side of the base 11, and each connection section 26 is penetrated to the base 11 and the tongue 12 and is exposed from the hollow portion 13.

The shielding shell 4 includes a receiving groove 43 and an inserting port 44 communicating with the receiving groove 43, the insulating body 1 is disposed in the receiving groove 43, the shielding shell 4 covers the hollow portion 13 to form a glue filling space 45 (as shown in fig. 7 and 8) in the hollow portion 13, the shielding shell 4 has a glue filling opening 421, and the glue filling opening 421 corresponds to the glue filling space 45.

When the shielding shell 4 is assembled outside the insulating body 1, the glue filling opening 421 of the shielding shell 4 corresponds to the hollow portion 13, and after the socket electrical connector 100 is horizontally laid, the glue filling processing can be conveniently performed on the hollow portion 13 between the base 11 and the tongue piece 12.

In some embodiments, the socket electrical connector 100 further includes a sealing body 9 (for clarity of illustrating the location of the sealing body 9, in fig. 1, 6, 8, and 10, the area where a plurality of dots are distributed is shown, and no actual product is shown), the sealing body 9 is located in the glue-pouring space 45 and filled in the hollow portion 13, and the sealing body 9 covers each connecting section 26 located in the hollow portion 13; the sealing body 9 (liquid) can be filled in the glue filling opening 421, the sealing body 9 (liquid) is formed into a hardened sealing body 9 (glue block) structure by drying, and the sealing body 9 is sealed in a gap between the connecting section 26 and the insulating main body 1 and a gap between the shielding shell 4 and the base 11; the sealing body 9 is covered by the shielding shell 4 in the glue filling space 45 and only exposed at the glue filling opening 421, and all sides of the sealing body 9 in the glue filling space 45 are not exposed, so that the sealing body 9 is not seen when the whole socket electric connector 100 is seen from the rear, and the sealing body 9 is shielded by the base 11.

In some embodiments, the insulating body 1 has a plurality of terminal slots, and the plurality of socket terminals 2 are located in the plurality of terminal slots and penetrate through the base 11 and the tongue piece 12. However, the implementation of the present technology is not limited to the above-described structure. In some embodiments, the waterproof socket connector 100 is applied to the socket connector in which the insulating body 1 and the plurality of socket terminals 2 are combined in an integral molding manner. The integrated molding technique may be insert molding (insert-molding), over-molding (over-molding), a combination of both techniques, or other molding techniques without departing from the scope of the present patent. In some embodiments, the insulating body 1 has no plurality of terminal slots, and the plurality of socket terminals 2 directly penetrate through the base 11 and the tongue 12. But because the waterproof type socket electrical connector 100 is manufactured during the process due to heating factors such as: the heat of the solder furnace can cause gaps between the metal terminals and the plastic insulating body 1 due to the difference of thermal expansion coefficients, so that a good waterproof effect cannot be achieved. Therefore, the waterproof socket electrical connector 100 formed by integrating the insulating body 1 and the plurality of socket terminals 2 also needs to be formed in the glue filling space 45 by the sealing body 9, and the sealing body 9 fills the gaps between the structures.

Referring to fig. 4 and 5, fig. 4 is a top exploded view of the receptacle electrical connector 100, and fig. 5 is a top view of the receptacle electrical connector 100. In some embodiments, the shielding shell 4 has an inner shell 41 and an outer shell 42 combined, the outer shell 42 has a n-type appearance structure, and the inner shell 41 has a hollow rectangular appearance structure; the inner case 41 and the outer case 42 are laser welded together; the outer case 42 has a glue-pouring opening 421, the inner case 41 has a recess 411, and the recess 411 corresponds to the glue-pouring opening 421; in the process of filling the glue, the sealing body 9 can be filled into the glue filling space 45 from the glue filling opening 421 and the concave portion 411.

Referring to fig. 4 and 5, the base 11 has a locking portion 119 on both sides, and the outer case 42 has a locking portion 429 on both sides, wherein the locking portion 429 is locked to the locking portion 119; after the outer shell 42 covers the inner shell 41, the outer shell is fixed to the fastening portion 119 of the base 11 via the fastening portion 429, and the outer shell 42 is welded to the inner shell 41 via a plurality of welding points, so as to increase the bonding strength between the insulating main body 1 and the shielding shell 4.

Referring to fig. 4 and 5, fig. 4 is a top exploded view of the receptacle electrical connector 100, and fig. 5 is a top view of the receptacle electrical connector 100. In some embodiments, the base 11 has an inclined portion 14, and the glue-pouring opening 421 corresponds to the inclined portion 14. The inclined portion 14 is located on the base 11 and faces the tongue piece 12, and the inclined portion 14 makes the hollow portion 13 take a shape of a wide opening and gradually widening toward the opening, so that the sealing body 9 (liquid) can flow into the hollow portion 13 conveniently.

Referring to fig. 5, in some embodiments, in a top view of the glue-filling opening 421, a portion of the glue-filling opening 421 corresponds to the inclined portion 14, and another portion of the glue-filling opening 421 corresponds to the interior of the hollowed-out portion 13. When the sealing body 9 (liquid) is filled into the glue filling opening 421, a part of the sealing body 9 may flow into the hollow portion 13 from the inclined portion 14, and another part of the sealing body 9 may flow into the hollow portion 13 directly.

Referring to fig. 3, in some embodiments, the plurality of socket terminals 2 have a first row of terminals and a second row of terminals in a double row, the tongue 12 and the base 11 are separate elements, the tongue 12 has a first tongue core 121 bonded to the first row of terminals, a second tongue core 122 bonded to the second row of terminals, and a third tongue core 123 bonded to the first tongue core 121 and the second tongue core 122, and the base 11 has a first base core 111 bonded to the second row of terminals, a second base core 112 bonded to the second row of terminals, and a third base core 113 bonded to the first base core 111 and the second base core 112.

Referring to fig. 3, in some embodiments, the first tongue-shaped glue core 121 and the first base glue core 111 are defined as first piece glue cores, and the first tongue-shaped glue core 121 and the first base glue core 111 are combined with the first row of terminals to form a first terminal module by a processing procedure; the second tongue piece rubber core 122 and the second base rubber core 112 are defined as a second piece rubber core, and the second tongue piece rubber core 122 and the second base rubber core 112 are combined with the second row of terminals by a processing program to form a second terminal module; the third tongue piece core 123 and the third base core 113 are defined as a third piece core, and the first terminal module and the second terminal module are combined with the third tongue piece core 123 and the third base core 113 by a processing procedure.

Referring to fig. 2, 4 and 8, in some embodiments, the base 11 and the tongue 12 are separate plastic parts, and each connection section 26 of the socket terminal 2 is connected between the base 11 and the tongue 12, and each connection section 26 is located at the hollow portion 13 and exposes the hollow portion 13.

Referring to fig. 3, in some embodiments, the upper row of the plurality of socket terminals 2 and the first base core 111 and the first tongue core 121 are embedded into each other, the lower row of the plurality of socket terminals 2 and the second base core 112 and the second tongue core 122 are embedded into each other, then the third base core 113 is formed outside the first base core 111 and the second base core 112, and the third tongue core 123 is formed outside the first tongue core 121 and the second tongue core 122 to form the insulating body 1.

Referring to fig. 3, in some embodiments, the third tongue-shaped rubber core 123 has a tongue-shaped ring protrusion 125, the tongue-shaped ring protrusion 125 is in a convex rib structure, the third base-shaped rubber core 113 has a base-shaped ring protrusion 115, the base-shaped ring protrusion 115 is in a convex rib structure, the base-shaped ring protrusion 115 contacts the inner wall of the inner shell 41, the base-shaped ring protrusion 115 is tightly adhered to the inner wall of the inner shell 41, the glue-pouring space 45 is located between the tongue-shaped ring protrusion 125 and the base-shaped ring protrusion 115, the tongue 12 has a step portion 15, the step portion 15 is adjacent to the base 11, and the tongue-shaped ring protrusion 125 is located at the step portion 15.

Referring to fig. 3, in some embodiments, the socket electrical connector 100 further includes a stop piece 5 sleeved on the third tongue glue core 123, the tongue ring protrusion 125 contacts an inner wall of the stop piece 5, the tongue ring protrusion 125 is tightly attached to the inner wall of the stop piece 5, an outer wall of the stop piece 5 contacts an inner wall of the inner housing 41, and a side surface of the stop piece 5 is located in the accommodating groove 43 and faces the insertion port 44; the stop piece 5 is combined in the inner shell 41, and the stop piece 5 and the inner shell 41 are combined by laser welding; when the plug electrical connector is plugged into the socket electrical connector 100, the front end of the plug electrical connector contacts the side surface 5a of the stop piece 5, and the side surface 5a of the stop piece 5 resists the impact of the plug electrical connector on the insulating main body 1, so that the insulating main body 1 is prevented from being damaged due to the impact.

Referring to fig. 3, in some embodiments, the electrical receptacle connector 100 further includes a waterproof gasket 8 that is sleeved outside the shielding shell 4 and adjacent to the plug interface 44.

Referring to fig. 3, in some embodiments, the electrical receptacle connector 100 further includes a fixing member 7 coupled to the exterior of the shielding shell 4 and adjacent to the plug port 44, the fixing member 7 having an arc-shaped groove 71, and the waterproof gasket 8 is disposed in the arc-shaped groove 71.

Referring to fig. 3, in some embodiments, the socket electrical connector 100 further includes a ground strip 3, the ground strip 3 being located on the insulating body 1, the ground strip 3 being interposed between the plurality of socket terminals 2 in a double row; the grounding plate 3 and the plurality of socket terminals 2 of the lower row are formed on the second tongue-shaped rubber core 122 and the second base rubber core 112.

Referring to fig. 3, in some embodiments, the two sides of the grounding plate 3 include hooks protruding from two sides of the tongue 12, the hooks on two sides of the plug electrical connector can respectively catch the hooks on two sides of the plug electrical connector, so as to avoid abrasion of the tongue 12 caused by friction between the hooks on two sides of the plug electrical connector and two sides of the tongue 12. In some embodiments, the grounding plate 3 is disposed on the tongue 12, so as to improve the strength and shielding effect of the tongue 12. When the plurality of contact sections 25 transmit signals, the isolation of the grounding plate 3 can improve the problem of crosstalk signal interference, and the grounding plate 3 is positioned on the tongue piece 12 to improve the structural strength of the tongue piece 12.

Referring to fig. 3, 6 and 8, in some embodiments, the plurality of socket terminals 2 includes a plurality of high-speed signal terminals 21, a plurality of low-speed signal terminals 22, a plurality of power terminals 23 and a plurality of ground terminals 24, each ground terminal 24 is located on both sides of each power terminal 23, each low-speed signal terminal 22 is located between each power terminal 23, and a plurality of high-speed signal terminals 21 are located between each adjacent power terminal 23 and each ground terminal 24. .

Referring to fig. 1 and 10, in some embodiments, the length of the shielding shell 4 may be shortened to expose the tongue 12, the tongue 12 is exposed outside the socket 44, and one end of each socket terminal 2 is exposed outside the socket 44 of the shielding shell 4.

Claims

1. An electrical receptacle connector, characterized by:

the insulation main body comprises a base, a tongue piece and a hollowed-out part, wherein the tongue piece is positioned at one side of the base, and the hollowed-out part is positioned between the base and the tongue piece;

the socket terminals are arranged on the base and the tongue piece, each socket terminal comprises a contact section, a connecting section and a welding section, each contact section extends from one side of each connecting section and is positioned on two sides of the tongue piece, each welding section extends from the other side of each connecting section and penetrates out of the other side of the base, and each connecting section penetrates through the base and the tongue piece and is exposed out of the hollowed-out part; and

The shielding shell comprises a containing groove and an inserting port communicated with the containing groove, the insulating main body is arranged in the containing groove, the shielding shell covers the hollowed-out part and forms a glue filling space in the hollowed-out part, the shielding shell is provided with a glue filling opening, and the glue filling opening corresponds to the glue filling space.

2. The electrical receptacle connector of claim 1, further comprising a sealing member disposed in the glue filling space and filling the hollow portion, wherein the sealing member covers each of the connection sections disposed in the hollow portion.

3. The electrical receptacle connector of claim 2, wherein the shielding housing has an inner housing and an outer housing combined together, the base has a fastening portion on both sides, the outer housing has a locking portion on both sides, the locking portion is locked to the fastening portion, the outer housing has the glue filling opening, and the inner housing has a recess corresponding to the glue filling opening.

4. The electrical socket connector of claim 3, wherein each socket terminal has a first row of terminals and a second row of terminals in a double row pattern, the tongue is a separate component from the base, the tongue has a first tongue core coupled to the first row of terminals, a second tongue core coupled to the second row of terminals, and a third tongue core coupled to the first tongue core and the second tongue core, and the base has a first base core coupled to the second row of terminals, a second base core coupled to the second row of terminals, and a third base core coupled to the first base core and the second base core.

5. The electrical socket connector of claim 4, wherein the third tongue piece core has a tongue piece ring protrusion, the third base core has a base ring protrusion, the base ring protrusion contacts the inner wall of the inner housing, the glue filling space is located between the tongue piece ring protrusion and the base ring protrusion, the tongue piece has a step portion, the step portion is adjacent to the base, and the tongue piece ring protrusion is located at the step portion.

6. The electrical socket connector of claim 5, further comprising a stopper piece sleeved on the third tongue piece core, wherein the tongue piece ring protrusion contacts an inner wall of the stopper piece, an outer wall of the stopper piece contacts an inner wall of the inner housing, and a side surface of the stopper piece is located in the accommodating groove and faces the inserting port.

7. The electrical receptacle connector of claim 4, wherein the first base core has an inclined portion corresponding to the glue-filled opening.

8. The electrical receptacle connector of claim 3, further comprising a waterproof gasket sleeved on the exterior of said shield housing and adjacent to said mating interface.

9. The electrical receptacle connector of claim 8, further comprising a securing member coupled to an exterior of the shield housing and adjacent the mating opening, the securing member having an arcuate recess, the waterproof gasket being disposed in the arcuate recess.

10. The electrical receptacle connector of claim 4, further comprising a ground strip disposed between each of said receptacle terminals in a double row and positioned on said insulative body.