CN216161988U

CN216161988U - TYPE C connector

Info

Publication number: CN216161988U
Application number: CN202122278929.9U
Authority: CN
Inventors: 韩林; 袁伟; 王钰; 易伟
Original assignee: Guangdong Lianji Precision Industry Co ltd
Current assignee: Lianji Precision Electronics Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-04-01
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a TYPE C connector, which comprises a main metal shell, an insulating body and a terminal group, wherein the main metal shell is provided with a plurality of grooves; the insulation body is provided with a tongue plate part and a fixed seat which are sequentially arranged from front to back; the terminal group is arranged on the insulating body and comprises an upper row of terminals and a lower row of terminals which are respectively arranged on the upper surface and the lower surface of the tongue plate part; the main body metal shell is sleeved on the fixed seat and surrounds the periphery of the tongue plate part to form a butt joint cavity; a metal fixing piece is embedded and injection molded in the insulating body, the rear end of the metal fixing piece is provided with an upper bending piece extending and bending upwards and a lower bending piece extending and bending downwards, and the upper bending piece and the lower bending piece are respectively exposed on the upper side and the lower side of the fixing seat; the main metal shell is respectively welded and fixed with the upper bending sheet and the lower bending sheet on the upper side and the lower side of the fixing seat. The problems that the process is complex and the tightness of the sleeved metal inner shell is not ideal in the traditional technology are solved.

Description

TYPE C connector

Technical Field

The utility model relates to the technical field of TYPE C connectors, in particular to a TYPE C connector.

Background

A Universal Serial Bus (USB) is widely used in daily life of people, and the universal standard is mostly adopted for data transmission of electronic devices; the appearance of the USB3.1 Type C-Type interface connector greatly improves the data transmission speed, so that the USB3.1 Type C-Type interface connector is widely applied at present.

Taking the female socket of the USB3.1 Type C interface connector as an example, the female socket usually includes a metal shell, an insulating body, a terminal set, a protective cover, and the like; the insulation body is provided with a tongue plate part and a fixed seat which are sequentially arranged from front to back; the terminal group is arranged on the insulating body and comprises an upper row of terminals and a lower row of terminals which are respectively arranged on the upper surface and the lower surface of the tongue plate part; the metal shell surrounds the periphery of the tongue plate portion to form a butt joint cavity, and the protective cover covers the outer portion of the metal shell and is close to the rear portion. In the prior art, in order to improve the structural integrity and the waterproof performance of the connector, a metal ring or a metal fastener is additionally arranged, wherein 1, the metal ring is directly sleeved in the middle of the plug assembly in a mode of additionally arranging the metal ring, the shell assembly is sleeved outside the metal ring, a part of the shell assembly, which is overlapped with the metal ring, is a laser welding ring, and the whole ring of the laser welding ring is hermetically fixed with the metal ring through laser welding; this kind of mode of addding the metal loop has some deficiencies: the tightness of the metal ring and the middle part of the ferrule assembly is difficult to guarantee, the process of sleeving the metal ring is increased, and the manufacture of the whole connector becomes complicated. 2. The mode of adding the metal fastener is that the metal fastener is sleeved on the rear end fixing part of the insulating body from the front end of the insulating body, the metal fastener is in a non-closed structure before being sleeved, and the metal fastener is in a closed structure by adopting a spot welding mode after being sleeved; compared with the mode of sleeving the metal ring, the mode of sleeving the metal ring can improve the combination tightness of the metal fastener and the insulating body to a certain degree by using a spot welding mode after the metal fastener is sleeved, but the processes of sleeving the metal fastener and welding the metal fastener into a closed structure need to be added, so that the manufacture of the whole connector is undoubtedly more complicated, in addition, although the combination tightness of the metal fastener and the insulating body can be improved to a certain degree after the metal fastener is welded into the closed structure, for the metal fastener, the metal fastener is welded into the closed structure from a non-closed structure, the external dimension of the whole metal fastener can have certain deformation, after the periphery of the metal fastener is sleeved by a subsequent metal inner shell, the combination tightness of the metal inner shell and the metal fastener is difficult to ensure, and the metal fastener is sealed by gluing at the rear end, the problem that glue overflows to the butt joint cavity easily occurs.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide a TYPE C connector, which solves the problems of complicated process and unsatisfactory sleeving and combining tightness of the metal inner shell in the conventional technology.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a TYPE C connector comprises a main metal shell, an insulating body and a terminal group; the insulation body is provided with a tongue plate part and a fixed seat which are sequentially arranged from front to back; the terminal group is arranged on the insulating body and comprises an upper row of terminals and a lower row of terminals which are respectively arranged on the upper surface and the lower surface of the tongue plate part; the main body metal shell is sleeved on the fixed seat and surrounds the periphery of the tongue plate part to form a butt joint cavity,

a metal fixing piece is embedded and injection molded in the insulating body, the rear end of the metal fixing piece is provided with an upper bending piece extending and bending upwards and a lower bending piece extending and bending downwards, and the upper bending piece and the lower bending piece are respectively exposed on the upper side and the lower side of the fixing seat; the main metal shell is respectively welded and fixed with the upper bending sheet and the lower bending sheet on the upper side and the lower side of the fixing seat.

As a preferable scheme, the upper bending piece comprises a first bending plate part and a second bending plate part, the first bending plate part extends upwards, the second bending plate part extends backwards from the upper end of the first bending plate part integrally, and the second bending plate part is exposed on the upper side of the fixed seat;

the lower bending piece comprises a third folding plate part and a fourth folding plate part, the third folding plate part extends downwards, the fourth folding plate part extends backwards from the upper end of the third folding plate part integrally, and the fourth folding plate part is exposed at the lower side of the fixed seat;

the main body metal shell is welded to the second flap portion and the fourth flap portion respectively.

Preferably, the front end of the metal fixing part is provided with an upper EMI sheet and a lower EMI sheet extending forwards, and the upper EMI sheet and the lower EMI sheet are respectively exposed at the upper side and the lower side of the tongue plate part.

As a preferable scheme, the metal fixing member has a ring body portion, the ring body portion is buried in the insulating body, the ring body portion extends along the circumferential direction of the insulating body, the ring body portion has an upper buried section, a left buried section, a lower buried section and a right buried section which are sequentially connected, the upper bending piece is integrally connected to the rear end of the upper buried section, the lower bending piece is integrally connected to the rear end of the lower buried section, the upper EMI piece is integrally connected to the front end of the upper buried section, and the lower EMI piece is integrally connected to the front end of the lower buried section.

Preferably, the front ends of the upper EMI sheet and the lower EMI sheet are provided with notches.

Preferably, the contact portions of the upper and lower rows of terminals are arranged on the upper and lower surfaces of the front section area of the tongue plate portion, respectively, and the upper and lower EMI sheets are exposed on the upper and lower sides of the rear section area of the tongue plate portion, respectively.

As a preferred scheme, the fixing seat comprises a positioning shoulder and a welding seat located at the rear side of the positioning shoulder, the upper bending piece and the lower bending piece are respectively exposed at the upper side and the lower side of the positioning shoulder, and the rear end of the main metal shell is sleeved on the periphery of the positioning shoulder.

As a preferable scheme, the welding feet of the upper row of terminals and the lower row of terminals extend out of the welding seat, and a metal protective cover is covered on the main metal shell; the welding seat is provided with a limiting convex column, the metal protective cover is provided with a limiting hole, and the limiting convex column extends into the limiting hole.

As a preferable scheme, a full-circle closed convex ring is arranged on the positioning shoulder part in an extending mode around the periphery of the positioning shoulder part, and after the main body metal shell is sleeved on the periphery of the positioning shoulder part, the inner wall surface of the main body metal shell and the convex ring form interference type close-fit positioning.

Preferably, the convex ring is arranged on the periphery of the front end of the positioning shoulder, and the front end surface of the convex ring is a guide inclined surface.

The utility model has obvious advantages and beneficial effects compared with the prior art, concretely, the technical proposal is that the metal fixing piece is embedded and injection molded in the insulation body, and the upper bending piece and the lower bending piece at the rear end of the metal fixing piece are respectively exposed on the upper side and the lower side of the fixing seat, so that after the main body metal shell is sleeved on the fixing seat, the upper side and the lower side of the fixing seat can respectively form welding fixation with the upper bending piece and the lower bending piece, on one hand, the metal fixing piece is embedded in the insulation body, no additional process is needed, the function of increasing the structural strength of the insulation body is also played, the plugging resistance and the bending damage resistance are better, on the other hand, the combination stability of the main body metal shell and the insulation body is improved by the upper bending piece and the lower bending piece, the thrust and retreat stopping functions are played, on the other hand, because the metal fixing piece is embedded and injection molded in the insulation body, the insulating body, the upper bending piece and the lower bending piece provide joint surfaces for the main metal shell, the precision is high, the consistency is good, the joint tightness after the main metal shell is sleeved is improved, the assembling reliability is better, and the possibility that glue overflows to the butt joint cavity is reduced.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective assembly view of an embodiment of the present invention;

FIG. 2 is another perspective assembly view of the embodiment of the present invention;

FIG. 3 is a side view of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an embodiment of the present invention;

FIG. 5 is an exploded view of an embodiment of the present invention;

FIG. 6 is a structural view of a metal fixture according to an embodiment of the present invention;

FIG. 7 is a side view of a metal fastener of an embodiment of the present invention;

FIG. 8 is a top view of a metal fastener in accordance with an embodiment of the present invention;

fig. 9 is a structural view of a metal fixing member insert injection molded in an insulating body according to an embodiment of the present invention.

The attached drawings indicate the following:

main metal shell 10 insulating body 20

Tongue part 21 fixing seat 22

Positioning shoulder 221 raised ring 2211

Guide slope 2212 welding seat 222

Spacing convex column 2221 first insulating body 201

Second insulating body 202 third insulating body 203

Middle partition 204 terminal group 30

Butt joint cavity 40 metal fixing piece 50

Upper bending piece 51 and lower bending piece 52

First flap portion 511 and second flap portion 512

Third flap portion 521 fourth flap portion 522

Upper EMI piece 53 and lower EMI piece 54

Segment 551 embedded in ring body 55

Lower buried section 553 of left buried section 552

Gap 501 of right buried section 554

Metal protective cover 60

Limiting hole 61 is welded with exhaust heat dissipation groove 62

Seal rubber ring 70 glue 80.

Detailed Description

Fig. 1 to 9 show specific structures of an embodiment of the present invention.

A TYPE C connector comprises a main metal shell 10, an insulating body 20 and a terminal group 30; the insulation body 20 is provided with a tongue plate part 21 and a fixed seat 22 which are arranged in sequence from front to back; the terminal group 30 is disposed on the insulating body 20, and the terminal group 30 includes an upper row of terminals and a lower row of terminals respectively arranged on the upper and lower surfaces of the tongue plate portion 21; the main body metal shell 10 surrounds the periphery of the tongue plate portion 21 to form a docking chamber 40. A metal fixing piece 50 is embedded in the insulating body 20 and injection molded, an upper bending piece 51 extending and bending upwards and a lower bending piece 52 extending and bending downwards are arranged at the rear end of the metal fixing piece 50, and the upper bending piece 51 and the lower bending piece 52 are respectively exposed at the upper side and the lower side of the fixing seat 22; the main metal shell 10 is welded and fixed to the upper and lower sides of the fixing base 22 with the upper bending piece 51 and the lower bending piece 52, which may be laser welding.

As shown in fig. 6 to 8, the upper bending piece 51 includes a first bending portion 511 and a second bending portion 512, the first bending portion 511 extends upward, the second bending portion 512 extends integrally from the upper end of the first bending portion 511 backward, and the second bending portion 512 is exposed on the upper side of the fixing base 22; the lower bending piece 52 includes a third folding plate portion 521 and a fourth folding plate portion 522, the third folding plate portion 521 extends downward, the fourth folding plate portion 522 extends backward from the upper end of the third folding plate portion 521, and the fourth folding plate portion 522 is exposed at the lower side of the fixing seat 22; the main body metal shell 10 is welded to the second flap portion 512 and the fourth flap portion 522, respectively. The front end of the metal fixing member 50 has an upper EMI sheet 53 and a lower EMI sheet 54 extending forward, and the upper EMI sheet 53 and the lower EMI sheet 54 are respectively exposed at the upper side and the lower side of the tongue plate portion 21, so that a male plug can contact the upper EMI sheet 53 or the lower EMI sheet 54 after being plugged. The contact portions of the upper row of terminals and the lower row of terminals are respectively arranged on the upper surface and the lower surface of the front section area of the tongue plate portion 21, and the upper EMI sheet 53 and the lower EMI sheet 54 are respectively exposed on the upper side and the lower side of the rear section area of the tongue plate portion 21.

The elastic tab of the male contacts the upper EMI sheet 53 or the lower EMI sheet 54, and functions to protect the circuit when static electricity permeates. The metal fixing member 50 includes a coil portion 55, the coil portion 55 is embedded in the insulating body 20, the coil portion 55 extends along the circumferential direction of the insulating body 20, the coil portion 55 includes an upper embedded section 551, a left embedded section 552, a lower embedded section 553, and a right embedded section 554 connected in sequence, the upper bent piece 51 is integrally connected to the rear end of the upper embedded section 551, the lower bent piece 52 is integrally connected to the rear end of the lower embedded section 553, the upper EMI piece 53 is integrally connected to the front end of the upper embedded section 551, and the lower EMI piece 54 is integrally connected to the front end of the lower embedded section 553. And, the front ends of the upper EMI sheet 53 and the lower EMI sheet 54 are provided with notches 501, so that the positioning accuracy of the upper EMI sheet 53 and the lower EMI sheet 54 on the insulating body 20 is improved, and the upper EMI sheet 53 and the lower EMI sheet 54 are prevented from shifting left and right.

As shown in fig. 4 and 5, the fixing seat 22 includes a positioning shoulder 221 and a welding seat 222 located behind the positioning shoulder 221, the upper bending piece 51 and the lower bending piece 52 are respectively exposed at the upper side and the lower side of the positioning shoulder 221, and the rear end of the main metal shell 10 is sleeved on the periphery of the positioning shoulder 221. A full-circle closed convex ring 2211 is arranged on the positioning shoulder 221 in an extending mode around the periphery of the positioning shoulder 221, and after the main metal shell 10 is sleeved on the periphery of the positioning shoulder 221, the inner wall surface of the main metal shell 10 and the convex ring 2211 form interference type tight-fit positioning. The protruding ring 2211 is disposed on the outer periphery of the front end of the positioning shoulder 221, and the front end surface of the protruding ring 2211 is a guiding inclined surface 2212, which is beneficial to the smooth assembly of the main metal shell 10. Through the setting of bulge loop 2211, can further improve the combination compactness after main part metal casing 10 cover is established, the equipment reliability is better, effectively blocks that glue overflows to butt joint chamber 40 forward.

As shown in fig. 1 to 5, the solder tails of the upper and lower rows of terminals extend out of the solder seat 222, and the main metal shell 10 is covered with a metal protective cover 60; be provided with spacing projection 2221 on the welded seat 222, be provided with spacing hole 61 on the metal protection cover 60, after the welded seat 222 was covered to metal protection cover 60, spacing projection 2221 stretched into in the spacing hole 61, played the effect that prevents metal protection cover 60 horizontal hunting. Preferably, the welding exhaust heat dissipation groove 62 may also be arranged at the top of the rear end of the metal protection cover 60, the welding exhaust heat dissipation groove 62 may be a plurality of short grooves or one or two long grooves, and the like, and the shape and size of the welding exhaust heat dissipation groove may not be limited, and the welding exhaust heat dissipation groove mainly plays a role in dissipating the smoke gas of the product during welding to the outside, and simultaneously, the welding exhaust heat dissipation groove also can dissipate heat. Between metal protection cover 60 and main part metal casing 10, it is fixed to form to connect through the radium-shine welding mode of many places, for example: and laser welding is respectively carried out on the top, the left side and the right side. And, at the front end periphery of main part metal casing 10, still can overlap and establish sealed rubber ring 70, after TYPE C connector was used to the electronic product, utilize sealed rubber ring 70 to improve the leakproofness between TYPE C connector and the internal wall face of its installation position. The rear end of the main body metal shell 10 is usually glued, and the rear end sealing performance is improved by using glue 80.

It should be noted that, in this embodiment, the insulation body 20 includes a first insulation body 201, a second insulation body 202 and a third insulation body 203, the upper row of terminals is insert injection molded in the first insulation body 201 to form an upper terminal module, the lower row of terminals is insert injection molded in the second insulation body 202 to form a lower terminal module, an intermediate partition 204 is stacked between the upper terminal module and the lower terminal module, the metal fixing member 50 is sleeved on the peripheries of the upper terminal module, the lower terminal module and the intermediate partition 204 to form a clamping module, and then the clamping module is insert injection molded in the third insulation body 203.

The design of the utility model is characterized in that a metal fixing member 50 is embedded and injection molded in an insulating body 20, and an upper bending piece 51 and a lower bending piece 52 at the rear end of the metal fixing member 50 are respectively exposed on the upper side and the lower side of a fixing seat 22, so that after a main metal shell 10 is sleeved on the fixing seat 22, the upper side and the lower side of the fixing seat 22 can be respectively welded and fixed with the upper bending piece 51 and the lower bending piece 52, on one hand, the metal fixing member 50 is embedded in the insulating body 20, no additional process is needed, the effect of increasing the structural strength of the insulating body 20 is achieved, the plugging resistance and the breaking resistance are better, on the other hand, the combination stability of the main metal shell 10 and the insulating body 20 is improved by virtue of the upper bending piece 51 and the lower bending piece 52, the anti-thrust and anti-return effects are achieved, on the other hand, because the metal fixing member 50 is embedded and injection molded in the insulating body 20, the insulating body 20, the upper bending piece 51 and the lower bending piece 52 provide a joint surface for the main metal shell 10, so that the precision is high, the consistency is good, the joint tightness after the main metal shell 10 is sleeved is improved, the assembly reliability is better, and the possibility that glue overflows to the butt joint cavity 40 is reduced.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. A TYPE C connector comprises a main metal shell, an insulating body and a terminal group; the insulation body is provided with a tongue plate part and a fixed seat which are sequentially arranged from front to back; the terminal group is arranged on the insulating body and comprises an upper row of terminals and a lower row of terminals which are respectively arranged on the upper surface and the lower surface of the tongue plate part; the fixing base is located to the main part metal shell cover and around in tongue board portion periphery in order to form butt joint chamber, its characterized in that:

2. The TYPE C connector of claim 1, wherein: the upper bending piece comprises a first bending plate part and a second bending plate part, the first bending plate part extends upwards, the second bending plate part extends backwards from the upper end of the first bending plate part integrally, and the second bending plate part is exposed on the upper side of the fixed seat;

3. The TYPE C connector of claim 1, wherein: the front end of the metal fixing piece is provided with an upper EMI sheet and a lower EMI sheet which extend forwards, and the upper EMI sheet and the lower EMI sheet are respectively exposed on the upper side and the lower side of the tongue plate part.

4. The TYPE C connector of claim 3, wherein: the metal mounting has the circle somatic part, the circle somatic part is buried underground in insulator, just, the circle somatic part extends along insulator's circumference and arranges, the circle somatic part has the section of burying underground on connecting gradually, buries the section underground on a left side, buries the section underground and the section is buried underground on the right side, on bend piece integrated connection in the last rear end of burying the section underground, bend piece integrated connection down in the rear end of burying the section underground, go up EMI piece integrated connection in the last front end of burying the section underground, EMI piece integrated connection is in the lower front end of burying the section underground.

5. The TYPE C connector of claim 3, wherein: the front ends of the upper EMI sheet and the lower EMI sheet are provided with notches.

6. The TYPE C connector of claim 3, wherein: the contact parts of the upper row of terminals and the lower row of terminals are respectively arranged on the upper surface and the lower surface of the front section area of the tongue plate part, and the upper EMI sheet and the lower EMI sheet are respectively exposed on the upper side and the lower side of the rear section area of the tongue plate part.

7. The TYPE C connector of claim 1, wherein: the fixing seat comprises a positioning shoulder and a welding seat positioned on the rear side of the positioning shoulder, the upper bending piece and the lower bending piece are respectively exposed on the upper side and the lower side of the positioning shoulder, and the rear end of the main metal shell is sleeved on the periphery of the positioning shoulder.

8. The TYPE C connector of claim 7, wherein: the welding feet of the upper row of terminals and the lower row of terminals extend out of the welding seat, and a metal protective cover is covered on the main body metal shell; the welding seat is provided with a limiting convex column, the metal protective cover is provided with a limiting hole, and the limiting convex column extends into the limiting hole.

9. The TYPE C connector of claim 7, wherein: the positioning shoulder is provided with a full-circle closed convex ring in an extending mode around the periphery of the positioning shoulder, and after the main body metal shell is sleeved on the periphery of the positioning shoulder, the inner wall surface of the main body metal shell and the convex ring form interference type close-fit positioning.

10. The TYPE C connector of claim 9, wherein: the convex ring is arranged on the periphery of the front end of the positioning shoulder part, and the front end face of the convex ring is a guide inclined plane.