CN114628940A

CN114628940A - A kind of interface unit

Info

Publication number: CN114628940A
Application number: CN202210329177.0A
Authority: CN
Inventors: 张勋徐; 张晓庆; 徐红强; 许立军
Original assignee: Dongguan Leader Precision Industry Co Ltd
Current assignee: Dongguan Leader Precision Industry Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-06-14

Abstract

The invention discloses a connector, which can reduce equipment/human resources and can effectively improve the yield of products and the production and assembly time. The invention comprises an outer shell, wherein an inner part is arranged in the outer shell, and an insulating seat is arranged in the inner shell; the two sides of the outer shell are provided with first elastic sheets bent inwards, the two sides of the inner shell are provided with avoidance openings, the avoidance openings of the inner shell are matched with the first elastic sheets of the outer shell, and the first elastic sheets bent inwards on the outer shell are arranged in the avoidance openings of the inner shell; a group of second elastic pieces which are bent inwards are arranged on the top surface of the inner shell close to the inserting port, and a chamfer angle structure is arranged at the head of each second elastic piece. The bulges at the two sides of the connector spacer are in interference connection with the inner iron shell, so that the structure is simple to assemble; can effectual save space, this structure can effectual reduction spot welding equipment and manpower, makes the operation more smooth and easy, improves production efficiency, can also satisfy USB 4.0's high frequency requirement.

Description

A kind of interface unit

Technical Field

The invention relates to the technical field of connectors, in particular to a signal shielding and leakage structure of TYPE C and structural designs of a spacer connected with an inner iron shell and the like.

Background

Along with the trend of light and miniaturized development of electronic products, the requirements on product structures are increased, the limitation of the existing frame needs to be broken through, and the requirements on product function diversification are continuously met. The outer iron shell of the conventional TYPE C connector is not attached to the board, a larger gap is reserved between the outer iron shell and the PCB, and the transmission signal is lost due to the too large gap, so that the shielding effect is poor; the spacer is welded with the inner iron shell in a spot welding mode, the structure is complicated, a spot welding device needs to be added, the process is complex, and machine tables and human resources are wasted; the conventional connector spacer is not welded with the iron shell, and a welding mode with a PCB is adopted, so that excessive holes are formed in the PCB, and the PCB wiring is influenced.

The head of an inner iron shell spring sheet of the existing connector is not chamfered, the head of the inner iron shell spring sheet can be pushed to the surface of an outer iron shell after Plug (Plug) is inserted, and the outer iron shell needs to adopt a space-hugging and avoiding structure; the outer iron shell is hollowed at the position so as to avoid the situation that after the Plug is inserted in a mutual insertion mode, the elastic sheet of the inner iron shell is tilted to jack the outer iron shell. The outer iron shell is hugged empty here and can lead to transmission signal's loss, influences signal shielding effect.

Current TYPE C connector support frame spot welding uses laser spot welding mode welding on the iron-clad including, because laser spot welding high temperature can lead to the plastic side burn, influences product appearance. The inner iron shell of the connector is bent and limited by using a tail clamping point, and the bending can rebound, so that the plastic can shake back and forth, and the function of the product is influenced; the connector spacer is not designed to be limited, and the spacer can be deformed in the forming process to influence the function of a product. The side of the existing connector iron shell is not provided with a spring piece, and the Plug can shake left and right after being plugged, so that the contact of a product is influenced.

Disclosure of Invention

In order to solve the problems of the prior art, an object of the present invention is to provide a connector, which can reduce the equipment/manpower resources, and can effectively improve the yield of products and the assembly time. According to the connector, a plurality of surfaces of the iron shell are welded with the PCB, the inside of the whole connector is tightly wrapped, the structure effectively prevents signal transmission from losing, the signal shielding effect is achieved, and the USB4.0 high-frequency requirement is met.

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

a connector comprises an outer shell (an outer iron shell), an inner shell (an inner iron shell) is arranged in the outer shell, and an insulating seat is arranged in the inner shell; the two sides of the outer shell are provided with first elastic sheets bent inwards, the two sides of the inner shell are provided with avoidance ports, the avoidance ports of the inner shell are matched with the first elastic sheets of the outer shell, and the first elastic sheets bent inwards on the outer shell are arranged in the avoidance ports of the inner shell;

a group of second elastic sheets (head parts of chamfer structures) which are bent inwards are arranged on the top surface of the inner shell close to the inserting port (opening end), and the head parts of the second elastic sheets are provided with chamfer structures; the top surface of the inner shell is also provided with an inward first concave top block (a clamping point) and a clamping piece, and the first concave top block and the clamping piece are arranged on the top surface of the inner shell far away from the insertion port (an opening end); the bottom surface of inner shell is equipped with inside second indent kicking block, and further, first indent kicking block, second indent kicking block, card are mated parallel arrangement respectively.

Further, in some embodiments, the top surface of the insulating base is provided with a positioning groove matched with the card of the inner shell, the top surface of the insulating base is provided with a first limiting groove matched with the first concave top block of the inner shell, and the bottom surface of the insulating base is provided with a second limiting groove matched with the second concave top block of the inner shell.

Further, in some embodiments, a terminal carrier fixed in the insulating base is arranged in the insulating base, a terminal group is arranged on the terminal carrier, and a spacer is arranged between the terminal groups; the vacancy (recess) is hugged to seted up on the spacer, and the both sides of spacer are equipped with the lug of outside extension.

Further, in some embodiments, a certain distance is provided between the spacer between the terminal sets and the terminal sets on both sides (front and back), and the distance between the spacer and the terminal sets forms a spacing position.

Further, in some embodiments, the terminal carrier, the spacer and the terminal group are fixedly arranged in the insulating base; the side surface of the insulating seat is provided with an avoiding position, and the convex sheet of the isolating sheet extends outwards to form an insulating seat body to be leaked in the avoiding position of the insulating seat; the outer end of the lug is abutted against the inner wall of the inner shell to form an interference structure.

Further, in some embodiments, the housing is disposed on a PCB board, on which pads are disposed; the welding pad arranged on the PCB board is matched with the bottom frame of the shell.

Further, in some embodiments, the bottom end of the housing is provided with an insertion sheet which extends downwards and is inserted into the PCB, and the bottom of the housing is provided with a welding surface; furthermore, each face of the bottom end of the shell is provided with a welding face, and the welding face of the bottom end of the shell is matched with the welding pad on the PCB.

Further, in some embodiments, a support frame is arranged on the bottom surface of the inner shell, a bending surface facing the insulating base is arranged on the support frame, the bending surface is arranged next to the insulating base, and the support frame and the bending surface form a U-shaped structure; the inner shell is arranged between the outer shell and the insulating seat.

Furthermore, in some embodiments, the two sides of the support frame are provided with buckling pieces, the outer shell is provided with a third concave top block matched with the buckling pieces at positions corresponding to the buckling pieces of the support frame, the buckling pieces and the third concave top block are in one-to-one correspondence, and the buckling pieces are elastically buckled and connected with the third concave top block, so that the support frame is buckled with the inner shell.

Further, in some embodiments, the first concave top blocks are a group (two parallel) of second concave top blocks symmetrically arranged on the top surface of the inner shell, and the bottom surface of the inner shell is provided with a group of second concave top blocks symmetrically arranged with the first concave top blocks (longitudinally);

the first limiting grooves are a group of (two parallel) symmetrical second limiting grooves arranged on the top surface of the insulating seat, and the bottom surface of the insulating seat is provided with a group of (longitudinal) symmetrical second limiting grooves with the first limiting grooves.

The bulges at the two sides of the connector isolating sheet are in interference connection with the inner iron shell, and the structure is simple to assemble. The space that can effectual saving PCB Layout wiring, the ground connection is only to hypoplastron (PCB board) iron-clad foot (inserted sheet), and this structure can effectual reduction spot welding equipment and manpower, makes the operation more smooth and easy, improves production efficiency, can also satisfy USB 4.0's high frequency requirement. The head of the elastic sheet of the inner iron shell of the connector adopts a chamfer structure, and even if a Plug (Plug) is inserted, the head of the elastic sheet of the inner iron shell can not jack the outer iron shell. Therefore, the surface of the outer iron shell does not need to be provided with holes to avoid the inner iron shell elastic sheet, the loss of signal transmission is effectively prevented, and the shielding effect is achieved.

The side surface of the connector support frame is provided with the bending surface, so that the problem of plastic burn/scorching caused by spot welding temperature can be blocked in the laser spot welding process, the product is more attractive, the bad appearance is reduced, and the product yield is improved. The iron shell uses about the trip point carry on spacingly in the connector, and the effectual bending of avoiding is out of position and is leaded to the plastic to rock the problem from beginning to end. This simple structure and stability, effectual improvement production efficiency.

The connector of the invention increases the design limit of the isolating sheet, effectively prevents the isolating sheet from deforming caused by the glue punching pressure in the forming process, ensures that the product operation is more stable, and improves the production efficiency. The connector iron shell both sides adopt the shell fragment structure, and effective stable contact Plug is simultaneously, still avoids Plug to rock about in female seat. Connector spacer material area hookup location is unanimous with shaking the material direction, only need shake about can excising, need not cut the back and shake the material again, and effectual reduction equipment and manpower resources make the product operation more stable, improve production efficiency.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic illustration of an inner shell portion of an embodiment of the present invention;

FIG. 4 is an exploded view of an embodiment of the present invention;

FIG. 5 is a schematic illustration of a body portion of an embodiment of the present invention;

FIG. 6 is a schematic diagram of a terminal set according to an embodiment of the invention;

FIG. 7 is a schematic view of an insulator base portion according to an embodiment of the invention;

FIG. 8 is a schematic view of a PCB board portion according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a spacer portion according to an embodiment of the invention;

FIG. 10 is a schematic view of a spacer portion according to an embodiment of the invention;

FIG. 11 is a perspective view of an inner housing portion of an embodiment of the present invention;

fig. 12 is a sectional structural view of the embodiment of the present invention.

Description of the symbols in the figures:

the PCB comprises a PCB 11, an outer shell 12, a welding pad 13, a first elastic sheet 14, an inserting sheet 15, a welding surface 16, a supporting frame 17, a bending surface 18, a buckling sheet 19, an inner shell 21, a second concave top block 22, a second elastic sheet 23, a first concave top block 24, a clamping sheet 25, an avoiding opening 26, a spacing position 27, an avoiding position 28, a third concave top block 29, an insulating base 31, a terminal group 32, a terminal carrier 33, an isolating sheet 34, a protruding sheet 35, an embracing vacancy 36, a second limiting groove 37, a positioning groove 38 and a first limiting groove 39.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "inner", "outer", etc., 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to the drawings, the present invention includes an outer shell 12 (outer iron shell), an inner shell 21 (inner iron shell) disposed in the outer shell 12, an insulating base 31 disposed in the inner shell 21, and the inner shell 21 disposed between the outer shell 12 and the insulating base 31. The shell 12 is arranged on the PCB 11, and a bonding pad 13 is arranged on the PCB 11; further, the pads 13 provided on the PCB board 11 are matched with the bottom surface frame of the case 12.

The bottom end of the shell 12 is provided with an insert piece 15 (iron shell pin) which extends downwards and is inserted into the PCB 11, and the bottom of the shell 12 is provided with a welding surface 16; further, the soldering surfaces 16 are provided on the respective surfaces of the bottom end of the housing 12, and the soldering surfaces 16 on the bottom end of the housing 12 are matched with the soldering pads 13 on the PCB 11, as shown in fig. 3 and 8. The shell 12 (iron case) multiaspect all is in the same place with 11 welding of PCB board, and

shell

12 and 11 multiaspect contacts of PCB board, with the rigorous of the inside parcel of whole connector, this structure is effectual prevents signal transmission's loss, reaches the signal shielding effect, satisfies USB4.0 high frequency requirement simultaneously.

Further, the two sides of the outer shell 12 are provided with first elastic pieces 14 which are bent inwards to form, the two sides of the inner shell 21 are provided with avoidance openings 26, the avoidance openings 26 of the inner shell 21 are matched with the first elastic pieces 14 of the outer shell 12, and the first elastic pieces 14 bent inwards on the outer shell 12 are arranged in the avoidance openings 26 of the inner shell 21. Shell 12 both sides adopt shell fragment structure (first shell fragment 14), and effective stable contact Plug (Plug) is simultaneously, still avoids Plug to rock about in female seat.

A group of second elastic pieces 23 (head parts of the chamfer structures) which are bent inwards are arranged on the top surface of the inner shell 21 close to the insertion port (opening end), and the head parts of the second elastic pieces 23 are provided with the chamfer structures, which is shown in the attached drawing 12. The second elastic sheet 23 of the inner connector shell 21 (inner iron shell) does not have an excessively large angle, and after the opposite insertion, the second elastic sheet 23 does not contact the white shell. The head of the second elastic sheet 23 adopts a chamfer structure, and even after the Plug is inserted, the head of the second elastic sheet 23 of the inner shell 21 can not jack the outer shell 12 (outer iron shell); therefore, the surface of the outer shell 12 does not need to be perforated to avoid the second elastic sheet 23 of the inner shell 21, the corresponding position of the outer shell 12 does not need to be hollowed, the loss of signal transmission is effectively prevented, and the shielding effect is achieved.

The top surface of the inner shell 21 is further provided with an inward first concave top block 24 (a clamping point) and a clamping piece 25, and the first concave top block 24 and the clamping piece 25 are arranged on the top surface of the inner shell 21 far away from the insertion port (an opening end); the bottom surface of the inner shell 21 is provided with an inward second concave top block 22, and further, the first concave top block 24, the second concave top block 22 and the clamping piece 25 are respectively arranged in parallel in pairs. The stuck point structure of inner shell 21 adopts the internal spring fixed, and inner shell 21 uses upper and lower stuck point (first indent kicking block 24 and second indent kicking block 22) to carry on spacingly, and effectual avoiding is bent not to lead to insulating seat 31 (plastic) to rock the problem from beginning to end. This simple structure and stability, effectual improvement production efficiency.

Further, the top surface of the insulating base 31 is provided with a positioning groove 38 matched with the card 25 of the inner shell 21, the top surface of the insulating base 31 is provided with a first limiting groove 39 matched with the first concave top block 24 of the inner shell 21, and the bottom surface of the insulating base 31 is provided with a second limiting groove 37 matched with the second concave top block 22 of the inner shell 21.

Further, the first concave top blocks 24 are a group (two are parallel) and symmetrically arranged on the top surface of the inner shell 21, and the bottom surface of the inner shell 21 is provided with a group of second concave top blocks 22 which are symmetrical to the first concave top blocks 24 (vertically up and down); the first limiting grooves 39 are a group of (two parallel) symmetrical second limiting grooves 37 arranged on the top surface of the insulating base 31, and the bottom surface of the insulating base 31 is provided with a group of symmetrical second limiting grooves 37 with the first limiting grooves 39 (vertical up and down).

The insulating base 31 is provided with a terminal carrier 33 fixed therein, the terminal carrier 33 is provided with terminal groups 32, and a spacer 34 is provided between the terminal groups 32. The spacers 34 are provided with holding spaces 36 (grooves), protruding pieces 35 extending outwards are arranged on two sides of the spacers 34, a certain distance is arranged between the spacers 34 between the terminal groups 32 and the terminal groups 32 on two sides (front and back), and the distance between the spacers 34 and the terminal groups 32 forms the spacing positions 27, as shown in fig. 10. Be equipped with on the spacing piece 34 and hug vacancy 36, set up limit structure such as space position 27 around, in the forming process, effectual prevention leads to the spacing piece to warp because of the pressure of gluing, makes the product operation more stable, improves production efficiency.

Further, the terminal carrier 33, the spacer 34, and the terminal group 32 are fixedly disposed in the insulating base 31. The side surface of the insulating seat 31 is provided with an avoiding position 28, and the protruding piece 35 of the spacer 34 extends outwards to the outside to extend out of the insulating seat 31 body and leak into the avoiding position 28 of the insulating seat 31, as shown in fig. 7; the outer ends of the tabs 35 abut the inner wall of the inner shell 21 to form an interference structure, as shown in FIG. 9. The convex pieces 35 (bulges) on the two sides of the spacing piece 34 are in interference connection with the inner shell 21 (inner iron shell), and the structure is simple to assemble; can effectually save the space of PCB Layout wiring, ground connection to circuit board (PCB board 11) only iron-clad foot (inserted sheet 15), this structure can effectual reduction spot welding equipment and manpower, makes the operation more smooth and easy, improves production efficiency, can also satisfy USB 4.0's high frequency requirement.

The bottom surface of inner shell 21 is equipped with support frame 17, is equipped with the face 18 of bending towards insulating seat 31 on the support frame 17, and the face 18 of bending is closely adjacent to insulating seat 31 and sets up, and support frame 17 forms U type structure with the face 18 of bending. The two sides of the supporting frame 17 are provided with buckling pieces 19, the outer shell 12 is provided with third concave top blocks 29 matched with the buckling pieces 19 at positions corresponding to the buckling pieces 19, the buckling pieces 19 correspond to the third concave top blocks 29 one by one, and the buckling pieces 19 are elastically buckled and connected with the third concave top blocks 29, so that the supporting frame 17 is buckled with the inner shell 21.

The support frame 17 is assembled in a U shape in a buckling mode, as shown in the attached drawing 5, the side face of the support frame 17 is provided with a bending face 18, the problem of plastic burn/scorching caused by spot welding temperature can be prevented in the laser spot welding process, the product is more attractive, poor appearance is reduced, and the product yield is improved.

The foregoing detailed description includes references to the accompanying drawings, which form a part hereof. The drawings show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are also referred to herein as "examples". These examples may include other elements in addition to those shown and described. The inventors also contemplate examples using any combination or permutation of the elements shown or described, either with respect to a particular example (or one or more aspects thereof) or with respect to other examples (or one or more aspects thereof) shown or described herein.

Claims

1. A connector, comprising: the device comprises an outer shell (12), wherein an inner shell (21) is arranged in the outer shell (12), and an insulating seat (31) is arranged in the inner shell (21); the anti-theft device is characterized in that first elastic sheets (14) formed by inward bending are arranged on two sides of the outer shell (12), avoidance openings (26) are formed in two sides of the inner shell (21), the avoidance openings (26) of the inner shell (21) are matched with the first elastic sheets (14) of the outer shell (12), and the first elastic sheets (14) bent inward on the outer shell (12) are arranged in the avoidance openings (26) of the inner shell (21);

a group of second elastic sheets (23) which are bent inwards are arranged on the top surface of the inner shell (21) close to the insertion port, and the head parts of the second elastic sheets (23) are provided with chamfer structures;

the top surface of the inner shell (21) is also provided with an inward first concave top block (24) and a card (25), and the first concave top block (24) and the card (25) are far away from the insertion port and are arranged on the top surface of the inner shell (21);

the bottom surface of the inner shell (21) is provided with an inward second concave top block (22), and the first concave top block (24), the second concave top block (22) and the clamping pieces (25) are respectively arranged in parallel in pairs.

2. The connector according to claim 1, wherein a positioning groove (38) matched with the card (25) of the inner housing (21) is formed in the top surface of the insulating base (31), a first limiting groove (39) matched with the first concave top block (24) of the inner housing (21) is formed in the top surface of the insulating base (31), and a second limiting groove (37) matched with the second concave top block (22) of the inner housing (21) is formed in the bottom surface of the insulating base (31).

3. A connector according to claim 1, wherein a terminal carrier (33) is fixed in the insulating base (31), a terminal group (32) is arranged on the terminal carrier (33), and a spacer (34) is arranged between the terminal group (32); the spacing portion (36) is hugged to having seted up on spacing piece (34), the both sides of spacing piece (34) are equipped with lug (35) of outside extension.

4. A connector according to claim 3, wherein a spacing is provided between the spacers (34) between the terminal sets (32) and the terminal sets (32) on either side, the spacing between the spacers (34) and the terminal sets (32) forming a spacer (27).

5. A connector according to claim 3, wherein said terminal carrier (33), said spacer (34), said terminal group (32) are fixedly arranged in said insulating housing (31); an avoiding position (28) is formed in the side surface of the insulating seat (31), and the protruding piece (35) of the isolating piece (34) extends outwards to form the insulating seat (31) body to be leaked in the avoiding position (28) of the insulating seat (31); the outer end of the lug (35) abuts against the inner wall of the inner shell (21) to form an interference structure.

6. A connector according to claim 1, wherein said housing (12) is provided on a PCB board (11), said PCB board (11) being provided with pads (13); the welding pad (13) arranged on the PCB (11) is matched with the bottom surface frame of the shell (12).

7. A connector according to claim 6, characterized in that the bottom end of the housing (12) is provided with a tab (15) extending downwards for insertion into the PCB (11), and the bottom of the housing (12) is provided with a soldering surface (16);

each surface of the bottom end of the shell (12) is provided with the welding surface (16), and the welding surface (16) of the bottom end of the shell (12) is matched with the welding pad (13) on the PCB (11) in position.

8. A connector according to claim 1, wherein a support frame (17) is provided on the bottom surface of the inner housing (21), a bending surface (18) facing the insulating base (31) is provided on the support frame (17), the bending surface (18) is disposed adjacent to the insulating base (31), and the support frame (17) and the bending surface (18) form a U-shaped structure; the inner shell (21) is arranged between the outer shell (12) and the insulating seat (31).

9. The connector according to claim 8, wherein clamping pieces (19) are arranged on two sides of the support frame (17), third concave top blocks (29) matched with the clamping pieces (19) are arranged on the outer shell (12) at positions corresponding to the clamping pieces (19) of the support frame (17), the clamping pieces (19) and the third concave top blocks (29) are in one-to-one correspondence with each other, and the clamping pieces (19) are connected with the third concave top blocks (29) in a clamping mode, so that the support frame (17) and the inner shell (21) are clamped together.

10. A connector according to claim 2, wherein the first female top blocks (24) are a set symmetrically arranged on the top surface of the inner housing (21), and the bottom surface of the inner housing (21) is provided with a set of the second female top blocks (22) symmetrically arranged with respect to the first female top blocks (24);

the first limiting groove (39) is a group of symmetrical second limiting grooves (37) which are symmetrical to the first limiting groove (39) and are formed in the top surface of the insulating seat (31), and the bottom surface of the insulating seat (31) is provided with the second limiting grooves (37).