CN218472383U - Socket electric connector - Google Patents

Abstract

The utility model relates to a socket electric connector, which comprises an insulating main body, a plurality of socket terminals arranged on the insulating main body and a shielding shell covering the tongue piece of the insulating main body; the two sides of the base of the insulation main body are provided with bumps positioned outside the shielding shell; the side end parts of two sides of the shielding shell are respectively provided with a yielding space between the side end parts and the convex blocks, the hollow parts between the base and the tongue pieces are exposed for the connection sections of the socket terminals, the inside of the shielding shell is provided with glue filling grooves which correspond to the hollow parts and are used for filling the sealing body, the sealing body cannot contact the convex blocks due to the design of the yielding space, the sealing body cannot be pulled by the base which is subjected to thermal deformation to prevent the sealing body from generating gaps between the sealing body and the side end parts of the shielding shell, and the waterproof function is prevented from being influenced by the permeation of water vapor from the gaps.

Description

Socket electric connector

Technical Field

The present invention relates to an electrical connector, and more particularly to an electrical socket connector.

Background

The transmission interface specification of the electrical connector is quite various, such as HDMI or Universal Serial Bus (USB), and USB is gradually used by the public, and the USB2.0 transmission specification is developed to the USB3.0 transmission specification with faster transmission speed.

The existing USB Type-C electrical connector is quite different from the existing USB electrical connector in appearance, structure, contact manner of terminals, number of terminals, distance of each terminal (Pitch), and Pin Assignment of each terminal (Pin Assignment). The current USB Type-C socket electric connector comprises a plurality of flat terminals arranged on a rubber core, wherein the rubber core is provided with a middle section area positioned between a tongue piece and a rear seat, and the outer part of the rubber core is covered with structures such as an outer iron shell and the like; generally, waterproof glue is dripped into the middle section area of the glue core, so that the waterproof glue seals gaps between the glue core and the plurality of flat terminals to prevent water vapor from permeating; because of the side of the back seat of gluing the core is close to or pastes on the side of outer iron-clad is served, make waterproof glue (liquid) can adhere to the side that contacts the back seat, because of the difference of the two thermal expansion coefficient of back seat and tongue piece, the back seat is different with the tongue piece deformation after being heated, after tin stove heating, the back seat of deformation can drag waterproof glue (glue the piece), make waterproof glue (glue the piece) and produce the gap with the side tip of shielding shell, cause the aqueous vapor to permeate from the gap, lead to waterproof function inefficacy.

Disclosure of Invention

The utility model discloses socket electric connector realizes through following technical scheme: the socket electric connector comprises an insulating main body, a plurality of socket terminals and a shielding shell; the insulation main body comprises a base, a tongue piece and a hollow-out part, the tongue piece is positioned on one side of the base, the hollow-out part is positioned between the base and the tongue piece, and two sides of the base are provided with convex blocks; 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 surfaces 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 hollow part; the shielding shell comprises a containing groove and a plug-in port communicated with the containing groove, the tongue piece and the hollow part are arranged in the containing groove, the shielding shell is provided with side end parts surrounding the periphery of the hollow part, the inside of the shielding shell is provided with glue filling grooves corresponding to the hollow part, and yielding spaces are respectively arranged between the side end parts at two ends of the shielding shell and the lugs.

Preferably, the socket electrical connector further includes a sealing body, the sealing body is located in the glue filling groove and filled in the hollow portion, the sealing body covers each connection section located in the hollow portion, and the sealing body extends to the yielding space and keeps a spacing distance from the bump.

Preferably, the shielding shell has a chamfer on the inner side of the side end, and the sealing body fits the chamfer and extends to the yielding space along the chamfer.

Preferably, the plurality of socket terminals have a first row of terminals and a second row of terminals in a double row, the tongue piece and the base are an integral component, the insulating body has a first rubber core combined with the first row of terminals, a second rubber core combined with the second row of terminals, and a third rubber core combined with the first rubber core and the second rubber core, and the insulating body has two extending portions located at two sides of the hollow portion and connecting the base and the tongue piece.

Preferably, the third rubber core is provided with an annular convex part, the tongue piece is provided with a step part, the step part is adjacent to the base, and the annular convex part is located at the step part.

Preferably, the socket electrical connector further includes a stop piece sleeved on the third rubber core, the annular convex portion contacts with an inner wall of the stop piece, an outer wall of the stop piece contacts with an inner wall of the shielding shell, and a side surface of the stop piece is located in the accommodating groove and faces the plug interface.

Preferably, the receptacle electrical connector further includes a waterproof gasket sleeved outside the shielding shell and adjacent to the socket.

Preferably, the socket electrical connector further includes a fixing member coupled to an outside of the shielding housing and adjacent to the socket, the fixing member having an arc groove, and the waterproof gasket being disposed in the arc groove.

Preferably, the receptacle electrical connector further includes a grounding plate disposed on the insulating body and between the two rows of the plurality of receptacle terminals.

In summary, according to some embodiments, a yielding space is formed between each side end of the two ends of the shielding shell and each bump, the sealing body in the potting groove does not contact the bump, the thermally deformed base does not pull the sealing body, the sealing body is tightly attached to the side ends, and the problem that the waterproof function is disabled due to the fact that a gap is formed between the sealing body and the side ends of the shielding shell and water vapor permeates through the gap is avoided; in addition, according to some embodiments, a hollow portion is formed between the base and the tongue piece of the insulating main body, each connecting section of the plurality of socket terminals is exposed in the hollow portion, the shielding shell outside the insulating main body is provided with a glue filling groove, and the glue filling groove is filled into the sealing body to seal between the insulating main body and the plurality of socket terminals in the hollow portion, so that a waterproof effect is achieved.

Drawings

Fig. 1 is a schematic external view of a receptacle electrical connector according to some embodiments.

Fig. 2 is an exploded view of the receptacle electrical connector according to some embodiments, shown without the encapsulant body.

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

Fig. 4 is a top exploded view of the receptacle electrical connector according to some embodiments, shown without the encapsulant body.

Fig. 5 is an external view of the receptacle electrical connector according to some embodiments, without the encapsulant in the encapsulant-filled recess.

Fig. 6 is a schematic diagram of an external view of a receptacle electrical connector according to some embodiments, with a sealant filled in the sealant-filled recess.

Fig. 7 is a schematic top view of a receptacle electrical connector according to some embodiments.

FIG. 8 isbase:Sub>A schematic sectional view A-A of FIG. 7, illustrating the state of the sealing body being filled.

Fig. 9 is a top cross-sectional view of a receptacle electrical connector according to some embodiments, without the encapsulant in the encapsulant recess.

Fig. 10 is a schematic top cross-sectional view of a receptacle electrical connector with a potting compound in a potting recess, according to some embodiments.

Fig. 11 is an enlarged schematic view of the symbol B in fig. 10.

Description of the symbols

100 socket electric connector

1 insulating body

11: base

111: bump

119 fastening part

12 tongue piece

125 annular convex part

13 hollow part

15 stepped part

161 first rubber core

162 second rubber core

163 third rubber core

17 an extension part

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 segment

27 welding section

3: grounding piece

4: shielding case

41 front case

411 side end part

412 glue pouring groove

413 abdicating space

415 chamfering

42 rear shell

429 clamping part

43 accommodating groove

44, interface

5, a stop sheet

5a side face

7, fixing piece

71 arc groove

8: waterproof gasket

9: sealing body

And 93: separation distance.

Detailed Description

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

The insulation main body 1 includes a base 11, a tongue 12 and a hollow portion 13, the tongue 12 is located on one side of the base 11, the hollow portion 13 is located between the base 11 and the tongue 12, and two sides of the base 11 have a protrusion 111.

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

The shielding shell 4 includes a receiving groove 43 and a socket 44 communicating with the receiving groove 43, the tongue 12 and the hollow portion 13 are disposed in the receiving groove 43, the shielding shell 4 has a side end 411 surrounding the outer periphery of the hollow portion 13, the shielding shell 4 has a glue filling groove 412 corresponding to the hollow portion 13, and a relief space 413 is provided between each side end 411 of two ends of the shielding shell 4 and each protrusion 111 (as shown in fig. 11).

When the shielding shell 4 is assembled outside the insulating main body 1, the glue filling groove 412 of the shielding shell 4 corresponds to the hollow portion 13, and after the receptacle electrical connector 100 is placed vertically (as shown in fig. 5), the hollow portion 13 between the base 11 and the tongue piece 12 can be conveniently filled with the sealing body 9 (as shown in fig. 6).

In some embodiments, the receptacle electrical connector 100 further includes a sealing body 9 (for clearly showing the location of the sealing body 9, the area is shown by a plurality of dots in fig. 6, 7, 8, 10, and 11, the actual product does not have the dots), the sealing body 9 is located in the glue filling groove 412 and filled in the hollow portion 13, the sealing body 9 covers each connecting section 26 located in the hollow portion 13, the sealing body 9 extends to the offset space 413 and keeps a distance 93 (as shown in fig. 11) from the bump 111; on the contrary, in some embodiments, as clearly shown in fig. 5 and 9, when the sealant 9 is not filled into the sealant groove 412, the sealant groove 412 is an annular recessed sealant groove at the periphery of the hollow portion 13.

In some embodiments, the sealant 9 (liquid) is filled at the sealant filling groove 412, the sealant 9 (liquid) is formed into a hardened sealant 9 (block) structure by drying, and the sealant 9 seals the gap between the connecting section 26 and the insulating main body 1 and the gap between the shielding shell 4 and the tongue piece 12.

In some embodiments, the insulating body 1 has a plurality of terminal slots, and the socket terminals 2 are located in the terminal slots and penetrate through the base 11 and the tongue 12. However, the implementation of the present technology is not limited to the above-described structure. In some embodiments, the waterproof socket electrical connector 100 is applied in which the insulating main body 1 and the plurality of socket terminals 2 are integrally formed. The integral molding technique, whether insert-molding (insert-molding), over-molding (over-molding), a combination of the two techniques, or other molding techniques may be used without departing from the scope of the present disclosure. In some embodiments, when the insulating main body 1 has no terminal grooves, the socket terminals 2 directly penetrate the base 11 and the tongue 12. However, the waterproof socket connector 100 is manufactured by heating factors such as: when the metal terminal and the plastic insulating body 1 are heated by the tin furnace, a gap is formed between the metal terminal and the plastic insulating body due to the difference of the thermal expansion coefficients of the two, so that a good waterproof effect cannot be achieved. Therefore, the waterproof socket electrical connector 100 with the insulating body 1 and the plurality of socket terminals 2 integrally formed also needs to be formed in the potting groove 412 by the sealing body 9, and the sealing body 9 fills the gaps between the structures.

In some embodiments, when the sealing body 9 is poured into the glue filling groove 412, the sealing body 9 (liquid) will climb upwards at the side end 411 (as shown in fig. 11), and due to the difference of the thermal expansion coefficients of the base 11 and the tongue 12 heated by the tin furnace, the respective deformation amounts of the base 11 and the tongue 12 after being heated are different, because the sealing body 9 extends to the receding space 413 and keeps a distance 93 from the bump 111, the sealing body 9 and the bump 111 will not contact, the deformed base 11 will not pull the sealing body 9, the sealing body 9 is tightly attached to the side end 411, and the problem of water-proof function failure due to the occurrence of a gap between the sealing body 9 and the side end 411 of the shielding housing 4 and the permeation of moisture from the gap is avoided.

In some embodiments, shield shell 4 has a chamfer 415 (shown in fig. 11) inside side end 411, and seal 9 fits into chamfer 415 and extends along chamfer 415 to relief space 413, and seal 9 extends as shown in fig. 11 such that an arc protrudes into relief space 413 and is spaced apart from bump 111 by a distance 93, the arc protruding beyond the edge face of side end 411 (shown in phantom in fig. 11).

In some embodiments, the shielding case 4 has a front case 41 and a rear case 42 (as shown in fig. 2) separated from each other, the front case 41 has a hollow rectangular appearance, and the rear case 42 has a u-shaped appearance; the front housing 41 has two coupled cases.

The base 11 has a fastening portion 119 at two sides, and the rear housing 42 has a locking portion 429 at two sides (as shown in fig. 2), and the locking portion 429 is locked to the fastening portion 119.

Referring to fig. 3, in some embodiments, the socket terminals 2 have a first row of terminals and a second row of terminals in a double-row manner, the tongue piece 12 and the base 11 are an integral (or separate) component, the insulating body 1 has a first rubber core 161 combining the first row of terminals, a second rubber core 162 combining the second row of terminals, and a third rubber core 163 combining the first rubber core 161 and the second rubber core 162, and the insulating body 1 has two extending portions 17 located at two sides of the hollow portion 13 and connecting the base 11 and the tongue piece 12.

Referring to fig. 3, in some embodiments, the socket terminals 2 at the upper row and the first plastic core 161 are insert-molded, the socket terminals 2 at the lower row and the second plastic core 162 are insert-molded, and then a third plastic core 163 is molded outside the first plastic core 161 and the second plastic core 162, and the third plastic core 163 is molded outside the first plastic core 161 and the second plastic core 162 to form the insulating main body 1 (as shown in fig. 2).

Referring to fig. 3, in some embodiments, third rubber core 163 has annular protrusion 125, annular protrusion 125 is a rib structure, annular protrusion 125 closely fits to the inner wall of front case 41, tongue 12 has step 15, step 15 is adjacent to base 11, and annular protrusion 125 is located on step 15.

Referring to fig. 2, in some embodiments, the receptacle electrical connector 100 further includes a stop piece 5 sleeved on the third rubber core 163, the annular protrusion 125 contacts an inner wall of the stop piece 5 (as shown in fig. 4), the annular 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 shielding shell 4, and a side surface of the stop piece 5 is located in the receiving groove 43 and faces the insertion opening 44; the stop sheet 5 is combined in the front housing 41, and the stop sheet 5 and the front housing 41 are combined by laser welding; when the plug electrical connector is plugged into the receptacle 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 stops the plug electrical connector from colliding with the insulating body 1, so as to prevent the insulating body 1 from being damaged due to collision.

Referring to fig. 2, in some embodiments, the receptacle electrical connector 100 further includes a waterproof gasket 8 sleeved outside the shielding shell 4 and adjacent to the plug interface 44.

Referring to fig. 2, in some embodiments, the receptacle electrical connector 100 further includes a fixing member 7 coupled to the exterior of the shielding shell 4 and adjacent to the plug interface 44, the fixing member 7 has an arc-shaped groove 71 (as shown in fig. 9), and the waterproof gasket 8 is disposed in the arc-shaped groove 71.

Referring to fig. 3, in some embodiments, the receptacle electrical connector 100 further includes a grounding plate 3, the grounding plate 3 is disposed in the insulating body 1, and the grounding plate 3 is disposed between the two rows of the plurality of receptacle terminals 2; the grounding plate 3 and the socket terminals 2 at the lower row are formed on the second plastic core 162 and the second plastic core 162.

Referring to fig. 3, in some embodiments, two sides of the grounding plate 3 include hook structures protruding from two sides of the tongue 12, the hook structures provide contact for the plug electrical connector, and the hooks on two sides of the plug electrical connector respectively engage with the hook structures, so as to prevent the hooks on two sides of the plug electrical connector from rubbing against two sides of the tongue 12 to cause abrasion of the tongue 12. In some embodiments, the grounding plate 3 is disposed on the tongue 12 to improve the strength and shielding effect of the tongue 12. When the plurality of contact sections 25 are transmitting signals, the problem of crosstalk signal interference can be improved by the isolation of the grounding sheet 3, and meanwhile, the structural strength of the tongue sheet 12 can be improved by the grounding sheet 3 located on the tongue sheet 12.

Referring to fig. 3, in some embodiments, the plurality of socket terminals 2 include 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 each high-speed signal terminal 21 is located between each power terminal 23 and each ground terminal 24.

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

In summary, according to some embodiments, a yielding space is formed between each side end of the two ends of the shielding shell and each bump, the sealing body in the potting groove does not contact the bump, the thermally deformed base does not pull the sealing body, the sealing body is tightly attached to the side ends, and the problem that the waterproof function is disabled due to the fact that a gap is formed between the sealing body and the side ends of the shielding shell and water vapor permeates through the gap is avoided; in addition, according to some embodiments, a hollow portion is formed between the base and the tongue piece of the insulating main body, each connecting section of the plurality of socket terminals is exposed in the hollow portion, the shielding shell outside the insulating main body is provided with a glue filling groove, and the glue filling groove is filled into the sealing body to seal between the insulating main body and the plurality of socket terminals in the hollow portion, so that a waterproof effect is achieved.

Claims (9)

1. An electrical receptacle connector, comprising:

the insulating main body comprises a base, a tongue piece and a hollow-out part, wherein the tongue piece is positioned on one side of the base, the hollow-out part is positioned between the base and the tongue piece, and two sides of the base are provided with a convex block;

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 hollow part; and

a shielding shell, including a containing groove and a socket communicated with the containing groove, the tongue piece and the hollow part are arranged in the containing groove, the shielding shell is provided with a side end part surrounding the periphery of the hollow part, the inside of the shielding shell is provided with a glue filling groove corresponding to the hollow part, and each side end part at two ends of the shielding shell is respectively provided with a yielding space between the tongue pieces.

2. The receptacle electrical connector of claim 1, further comprising a sealing body disposed in the glue-filling recess and filled in the hollow portion, wherein the sealing body covers each of the connection sections disposed in the hollow portion, and the sealing body extends to the relief space and maintains a distance from the protrusion.

3. The electrical receptacle connector of claim 2, wherein the shield shell has a chamfer on an inner side of the side end, the sealing body engaging the chamfer and extending along the chamfer to the relief space.

4. The electrical receptacle connector of claim 3, wherein each of said receptacle terminals has a first row of terminals and a second row of terminals in a double row, said tongue being a unitary member with said base, said insulating body having a first rubber core engaging said first row of terminals, a second rubber core engaging said second row of terminals, and a third rubber core engaging said first rubber core and said second rubber core, said insulating body having two extensions located on opposite sides of said hollow and connecting said base to said tongue.

5. The electrical receptacle connector of claim 4, wherein the third rubber core has a ring-shaped protrusion, the tongue piece has a step, the step is adjacent to the base, and the ring-shaped protrusion is located on the step.

6. The electrical receptacle connector as claimed in claim 5, further comprising a stopper plate sleeved on the third plastic core, wherein the annular protrusion contacts with an inner wall of the stopper plate, an outer wall of the stopper plate contacts with an inner wall of the shielding shell, and a side surface of the stopper plate is located in the receiving groove and faces the insertion port.

7. The electrical receptacle connector of claim 1, further comprising a waterproof gasket disposed around the shielding shell and adjacent to the mating port.

8. The electrical receptacle connector as recited in claim 7, further comprising a fixing member coupled to an exterior of the shielding shell and adjacent to the socket, the fixing member having an arc-shaped groove, the waterproof gasket being disposed in the arc-shaped groove.

9. The electrical receptacle connector of claim 4, further comprising a grounding plate disposed in said insulative body between said receptacle terminals in both rows.

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