CN115084919A

CN115084919A - Electric connector

Info

Publication number: CN115084919A
Application number: CN202210778586.9A
Authority: CN
Inventors: 徐红强; 陈楠; 许立军
Original assignee: Dongguan Leader Precision Industry Co Ltd
Current assignee: Dongguan Leader Precision Industry Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-20

Abstract

The invention discloses an electric connector, which comprises a first shell, a second shell and a connecting seat, wherein the first shell and the second shell are surrounded to form an accommodating cavity; one end of the connecting seat is embedded and clamped in the accommodating cavity of the first shell; one end of the first shell facing the connecting seat is provided with a first concave folding part which is bent outwards, and one side of the first concave folding part far away from the first shell is provided with a first shielding part which extends forwards; the second shell comprises a connecting arm, one side of the connecting arm, which faces the connecting seat, is provided with a second concave folding part which is bent outwards, and one side of the second concave folding part, which is far away from the second shell, is provided with a second shielding part which extends forwards; the first shielding part of the first shell and the second shielding part of the second shell are arranged on two opposite sides of the tongue plate seat in a pressing mode through the front half part of the fixing shell, and the first concave folding part and the second concave folding part are surrounded by the rear half part of the fixing shell to be filled with waterproof glue which is located behind the tongue plate seat and penetrates through the connecting seat. The invention has high waterproof efficiency, and the through glue filling groove is adopted, thereby being more beneficial to filling of glue.

Description

Electric connector

Technical Field

The invention relates to the technical field of connectors, in particular to a waterproof electric connector.

Background

The connector is widely applied to various electronic products, is mainly assembled on products such as computer periphery, servers, routers, switching equipment and the like, is used for transmitting data, connecting peripheral equipment and the like, and is widely applied to the fields of networks, communication, automatic control and the like.

Along with the increasing and enriching of functions and the trend of miniaturization development of electronic products, the requirements on the product structure are increased, and the requirements on the product structure stability and easiness in assembling and processing need to be met. At present, a glue pouring groove of a connector is a U-shaped opening, which is not beneficial to glue pouring, and the front side and the back side of the connector both need to be filled with glue, so that the overall production efficiency is influenced; the highly waterproof connector SMT pad shielding effect is not sufficient.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide an ultrathin electric connector with high waterproof performance, which reduces the process cost of the connector, only needs to fill glue once and can improve the process yield.

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

an electric connector comprises a first shell (an upper iron shell), a second shell (a lower iron shell) and a connecting seat, wherein the first shell and the second shell are enclosed to form an accommodating cavity; one end of the connecting seat is embedded and clamped in the accommodating cavity formed by the first shell and the second shell;

one end of the first shell facing the connecting seat is provided with a first concave folding part which is bent outwards, and one side of the first concave folding part far away from the first shell is provided with a first shielding part which extends forwards;

the second shell comprises a connecting arm, one side of the connecting arm, which faces the connecting seat, is provided with a second concave folding part which is bent outwards, and one side of the second concave folding part, which is far away from the second shell, is provided with a second shielding part which extends forwards;

the connecting seat comprises a tongue plate seat, a fixed shell is sleeved on the tongue plate seat, and the open end of the fixed shell faces the first shell and the second shell;

the first shielding part of the first shell and the second shielding part of the second shell are arranged on two opposite sides of the tongue plate seat in a pressing mode through the front half part of the fixing shell, and the first concave folding part and the second concave folding part are surrounded by the rear half part of the fixing shell to be filled with waterproof glue which is located behind the tongue plate seat and penetrates through the connecting seat.

Further, in some embodiments, the terminal assembly is embedded in the connecting seat, the terminal assembly welding end (rear end) is provided with a plastic body, the plastic body is spaced from the tongue plate seat, the plastic body is embedded and clamped in the accommodating cavity formed by the first shell and the second shell, and the waterproof glue is filled in a space enclosed by the first concave folding portion, the second concave folding portion, the rear half portion of the fixing shell, the plastic body and the tongue plate seat and wraps the terminal assembly located between the plastic body and the tongue plate seat.

Furthermore, in some embodiments, two sides of the first housing are provided with first connection lugs bent outwards, two sides of the second housing are provided with second connection lugs symmetrically matched with the first connection lugs, and the first connection lugs and the second connection lugs are overlapped and fixedly arranged on a circuit board through spot welding.

Further, in some embodiments, two sides of the first housing are provided with side panels bent inward, the rear end of the first housing is provided with a rear panel bent inward, the rear panel is located behind the plastic body, and the side panels and the rear panel are electrically connected to the circuit board.

Further, in some embodiments, the rear edge of the connecting arm is provided with a bent contact portion extending toward the first housing and bent backward, and the bent contact portion horizontally abuts against the inner side surface of the first housing.

Furthermore, in some embodiments, a positioning column protruding outward is disposed on a surface of the plastic body close to the first housing, the first housing is provided with positioning holes symmetrically matched with the positioning column, and the positioning column penetrates through the positioning holes.

Further, in some embodiments, the fixing shell is sleeved on a tongue plate seat (connecting end), and one end of the tongue plate seat far away from the first shell extends outside the fixing shell;

the middle part of the fixed shell is provided with a step, the fixed shell is provided with a silica gel ring, and the silica gel ring is surrounded on the step.

The electric connector has high waterproof efficiency, adopts the through glue filling groove, is more favorable for filling glue, can realize one-time glue filling and has high glue filling efficiency, can effectively improve the glue filling efficiency and yield, and saves the cost.

Drawings

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

FIG. 2 is a perspective view of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a stationary housing portion according to an embodiment of the present invention;

FIG. 4 is a schematic representation of the use of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of the present invention;

FIG. 6 is a schematic structural view of a housing portion according to an embodiment of the present invention;

FIG. 7 is a schematic view of a use state of the embodiment of the present invention;

FIG. 8 is a perspective view of a use state of the embodiment of the present invention;

FIG. 9 is an exploded view of the housing portion of the embodiment of the present invention;

FIG. 10 is a cross-sectional view of a connecting base portion according to an embodiment of the invention;

FIG. 11 is a schematic view of the assembly of components of an embodiment of the present invention;

FIG. 12 is a schematic view of the assembly of the present invention.

Description of the main part symbols in the drawings:

the connecting device comprises a connecting seat 11, a tongue plate seat 12, a terminal assembly 13, a middle partition plate 14, a positioning column 19, a first shell 21, a second shell 22, a first connecting lug 23, a side screen 24, a rear screen wall 25, a positioning hole 26, a first concave folding part 27, a first shielding part 28, an accommodating cavity 29, a fixed shell 31, a step 32, a silica gel ring 33, waterproof glue 34, a plastic body 37, a second connecting lug 44, a connecting arm 45, a bent contact part 46, a second concave folding part 47, a second shielding part 48, a base 51 and a circuit board 52.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The features and technical means of the present invention, and the specific objects and functions achieved thereby, are further understood by the following detailed description of the present invention taken in conjunction with the accompanying drawings.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "front," "back," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1 to 12, the present invention provides an electrical connector, which includes a first housing 21, a second housing 22 and a connecting seat 11, wherein the first housing 21 and the second housing 22 surround to form an accommodating cavity 29, and one end of the connecting seat 11 is inserted and clamped in the accommodating cavity 29 formed by the first housing 21 and the second housing 22; one end of the first shell 21 facing the connecting seat 11 is provided with a first concave folding part 27 which is bent outwards, and one side of the first concave folding part 27 far away from the first shell 21 is provided with a first shielding part 28 which extends forwards; the second shell 22 comprises a connecting arm 45, one side of the connecting arm 45 facing the connecting seat 11 is provided with a second concave folding part 47 which is bent outwards, and one side of the second concave folding part 47 far away from the second shell 22 is provided with a second shielding part 48 which extends forwards; the connecting seat 11 comprises a tongue plate seat 12, a fixed shell 31 is sleeved on the tongue plate seat 12, and the open end of the fixed shell 31 faces the first shell 21 and the second shell 22; the first shielding portion 28 of the first housing 21 and the second shielding portion 48 of the second housing 22 are pressed on two opposite sides of the tongue plate seat 12 by the front half portion of the fixing shell 31, and the first concave folding portion 27 and the second concave folding portion 47 are surrounded by the rear half portion of the fixing shell 31 to fill the waterproof glue 34 which is located behind the tongue plate seat 12 and penetrates through the connecting seat 11.

In the present embodiment, the terminal assembly 13 is embedded in the connecting seat 11, the welding end of the terminal assembly 13 is provided with the plastic body 37, the plastic body 37 is spaced from the tongue plate base 12, the plastic body 37 is embedded and clamped in the accommodating cavity 29 formed by the first shell 21 and the second shell 22, and the waterproof adhesive 34 is filled in the space enclosed by the first concave-folding portion 27, the second concave-folding portion 47, the rear half portion of the fixing shell 31, the plastic body 37 and the tongue plate base 12, and wraps the terminal assembly 13 located between the plastic body 37 and the tongue plate base 12. The electric connector adopts the through glue pouring groove, can realize one-time glue pouring and high glue pouring efficiency, is more favorable for filling glue, can effectively improve the glue pouring efficiency and yield, saves the cost, and has high waterproof efficiency after glue pouring.

Furthermore, two sides of the first shell 21 are provided with first connecting lugs 23 bent outwards, two sides of the second shell 22 are provided with second connecting lugs 44 symmetrically matched with the first connecting lugs 23, and the first connecting lugs 23 and the second connecting lugs 44 are overlapped and fixedly arranged on a circuit board 52 through spot welding; two sides of the first shell 21 are further provided with inward-bent side panels 24, the rear end of the first shell 21 is provided with an inward-bent rear panel 25, the rear panel 25 is located behind the plastic body 37, the side panels 24 and the rear panel 25 are electrically connected to the circuit board 52, and the welding ends of the terminal assemblies 13 are welded on the circuit board 52; the rear edge of the connecting arm 45 is provided with a bent contact part 46 which extends towards the first shell 21 and is bent backwards, the bent contact part 46 horizontally abuts against the inner side surface of the first shell 21, and the first shell 21 and the second shell 22 are contacted and connected with the circuit board 52 to be grounded, so that a good electromagnetic shielding effect is formed.

Furthermore, a positioning post 19 protruding outward and extending is disposed on one surface of the plastic body 37 close to the first casing 21, a positioning hole 26 matched and symmetrical with the positioning post 19 is disposed on the first casing 21, and the positioning post 19 is disposed in the positioning hole 26 in a penetrating manner.

In this embodiment, the fixed shell 31 is sleeved on the tongue plate seat 12, and one end of the tongue plate seat 12 away from the first shell 21 extends outside the fixed shell 31; the middle of the fixed shell 31 is provided with a step 32, the fixed shell 31 is provided with a silica gel ring 33, and the silica gel ring 33 surrounds the step 32. The silicone ring 33 is used to seal a gap between the outer surface of the fixing case 31 and the housing 51 when the electrical connector is fitted in the housing 51.

The assembly and manufacturing process of the electric connector of the invention is as follows (see fig. 11 and 12):

s1, inserting and clamping one end of the connecting seat 11 far away from the tongue plate seat 12 into the accommodating cavity 29 formed by the first shell 21 and the second shell 22 to form a semi-finished product;

s2, injecting and covering a silica gel ring 33 on the step 32 of the fixed shell 31 in a surrounding manner, wherein the silica gel ring 33 covers the step surface of the step 32;

s3, the fixing shell 31 with the silicone ring 33 is sleeved on the tongue plate 12 of the connecting base 11, the end portions (the first shielding portion 28 and the second shielding portion 48) of the first shell 21 and the second shell 22 are embedded in the fixing shell 31, and the rear half portion of the fixing shell 31 surrounds the outer sides of the first concave folding portion 27 and the second concave folding portion 47;

certainly, after the fixing shell 31 is sleeved on the tongue plate seat 12 of the connecting seat 11, the step 32 of the fixing shell 31 may be injected with the silica gel ring 33 which is circumferentially covered;

s4, filling glue into the space enclosed by the first concave-folded part 27, the second concave-folded part 47, the rear half part of the fixing shell 31, the plastic body 37 and the tongue plate base 12, and because the space is a through-type glue-filling groove, the terminal assembly 13 between the plastic body 37 and the tongue plate base 12 can be covered by the waterproof glue 34 formed after the glue-filling and the glue-filling in one step.

The foregoing examples, which are indicative of several preferred embodiments of the invention, are given in detail and are therefore to be understood that the invention is not limited to the precise forms disclosed herein, and is not to be construed as being limited to the exclusion of other examples, which may be used in various other combinations, modifications, and environments and which are capable of modification within the scope of the inventive concept described herein, either by the above teachings or by the skill or knowledge of the relevant art, and therefore not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit and scope of the present invention, and those skilled in the art can make modifications and variations without departing from the spirit and scope of the present invention, which falls within the protection scope of the appended claims. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. An electrical connector, comprising: the device comprises a first shell (21), a second shell (22) and a connecting seat (11), and is characterized in that the first shell (21) and the second shell (22) are surrounded to form an accommodating cavity (29); one end of the connecting seat (11) is embedded and clamped in the accommodating cavity (29) formed by the first shell (21) and the second shell (22);

one end, facing the connecting seat (11), of the first shell (21) is provided with a first concave folding part (27) which is bent outwards, and one side, away from the first shell (21), of the first concave folding part (27) is provided with a first shielding part (28) which extends forwards;

the second shell (22) comprises a connecting arm (45), one side, facing the connecting seat (11), of the connecting arm (45) is provided with a second concave folding part (47) which is bent outwards, and one side, away from the second shell (22), of the second concave folding part (47) is provided with a second shielding part (48) which extends forwards;

the connecting seat (11) comprises a tongue plate seat (12), a fixed shell (31) is sleeved on the tongue plate seat (12), and the open end of the fixed shell (31) faces the first shell (21) and the second shell (22);

first shelter from portion (28) of first casing (21) with second casing (22) second shelter from portion (48) by the first half-part pressure of fixed shell (31) is located the relative both sides of tongue board seat (12), first concave folding portion (27) with second concave folding portion (47) by the latter half-part of fixed shell (31) is enclosed and is located with the packing tongue board seat (12) rear and link up waterproof glue (34) of connecting seat (11).

2. The electrical connector according to claim 1, wherein a terminal assembly (13) is embedded in the connecting seat (11), a plastic body (37) is disposed at a welding end of the terminal assembly (13), the plastic body (37) is spaced from the tongue plate seat (12), the plastic body (37) is embedded and clamped in the accommodating cavity (29) formed by the first shell (21) and the second shell (22), and the waterproof glue (34) is filled in a space surrounded by the first concave-folded portion (27), the second concave-folded portion (47), the rear half portion of the fixing shell (31), the plastic body (37) and the tongue plate seat (12) and wraps the terminal assembly (13) between the plastic body (37) and the tongue plate seat (12).

3. The electrical connector of claim 2, wherein the first housing (21) is provided with outwardly bent first connecting lugs (23) at two sides thereof, the second housing (22) is provided with second connecting lugs (44) at two sides thereof, the second connecting lugs (23) and the second connecting lugs (44) are symmetrically matched, and the first connecting lugs (23) and the second connecting lugs (44) are fixedly arranged on a circuit board (52) by overlapping and spot welding.

4. The electrical connector of claim 3, wherein the first housing (21) is provided with inwardly bent side panels (24) at two sides thereof, the rear end of the first housing (21) is provided with an inwardly bent rear panel (25), the rear panel (25) is located behind the plastic body (37), and the side panels (24) and the rear panel (25) are electrically connected to the circuit board (52).

5. An electrical connector as claimed in claim 3, characterized in that the rear edge of the connecting arm (45) is provided with a bent contact portion (46) extending towards the first housing (21) and bent back, the bent contact portion (46) abutting horizontally against the inner side of the first housing (21).

6. The electrical connector according to claim 2, wherein a positioning post (19) protruding outward is disposed on a surface of the plastic body (37) close to the first housing (21), a positioning hole (26) matching and symmetrical with the positioning post (19) is disposed on the first housing (21), and the positioning post (19) is inserted into the positioning hole (26).

7. An electrical connector according to claim 1, wherein the fixing shell (31) is fitted over the tongue plate seat (12), and an end of the tongue plate seat (12) away from the first housing (21) extends outside the fixing shell (31);

fixed shell (31) middle part is equipped with step (32), set up a silica gel circle (33) on fixed shell (31), silica gel circle (33) encircle on step (32).