CN221126377U

CN221126377U - Waterproof connector

Info

Publication number: CN221126377U
Application number: CN202323066776.7U
Authority: CN
Inventors: 樊常权
Original assignee: Dongguan Shengjie Electronics Co ltd
Current assignee: Dongguan Shengjie Electronics Co ltd
Priority date: 2023-11-13
Filing date: 2023-11-13
Publication date: 2024-06-11
Anticipated expiration: 2033-11-13

Abstract

The utility model discloses a waterproof connector, which comprises an insulating body, a plurality of terminals and a shielding shell, wherein the insulating body is provided with a plurality of terminals; the insulating body comprises a base and a tongue plate extending forwards on the base; each terminal has a contact portion and a soldering portion; the plastic shell is provided with a sealing cavity with a forward opening, the rear end face of the plastic shell is concavely provided with a dispensing groove, and the bottom surface of the dispensing groove is provided with a slotted hole communicated with the sealing cavity; the insulating body and the shielding shell are both positioned in the sealing cavity, the rear end face of the base is convexly provided with a boss, and the boss is matched with the slotted hole and is inserted into the slotted hole from front to back. Through protruding boss that is equipped with at the rear end face of base to the slot hole in the sealed chamber of intercommunication is seted up to the bottom surface of cooperation in the point gum groove, in the boss inserts the slot hole, with the point gum area between greatly reduced base and the plastic shell, the point gum volume is less, also makes waterproof sealed reliability and stability obtain very big promotion simultaneously, and waterproof grade can reach IP68.

Description

Waterproof connector

Technical Field

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

Background

With the continuous development of economy and the continuous improvement of technical level, the method provides people with extremely rich material conditions, thereby improving the living standard of people. Due to the continuous improvement of the living standard of people, the demand of people for various electronic products is also increasingly vigorous, and a good development platform is created for the development of the electronic products. In electronic products, the body and shadow of the electric connector can be seen everywhere, and the electric connector is widely applied to electronic products and various electric equipment because the use of the electric connector can relatively shorten the design period of the electronic products, save the design cost, and facilitate the assembly, disassembly and maintenance.

With the popularization and use of the electrical connectors, the use environment of the electrical connectors is gradually becoming complex, and the electrical connectors most commonly work in a wet working environment. In order to prevent external moisture from entering the interior of the equipment through the connector and protect the circuit inside the equipment from being damaged due to damp, various waterproof connectors are currently available, and the waterproof connectors in the prior art generally comprise an insulating body, a plurality of terminals, a shielding shell and a waterproof sheath; the insulating body comprises a base and a tongue plate extending forwards on the base; the terminals and the insulating body are fixed together by insert molding, each terminal is provided with a contact part and a welding part, the contact part is exposed on the surface of the tongue plate, and the welding part extends out of the base backwards; the shielding shell is coated outside the insulating body; the waterproof sheath is of a front-back hollow structure, the waterproof sheath is sleeved outside the shielding shell, the rear end of the waterproof sheath protrudes backwards out of the rear end of the base and forms a glue dispensing groove with the rear end face of the base, glue is dispensed in the glue dispensing groove, and the glue dispensing groove is completely filled with waterproof glue to seal the rear end of the waterproof sheath, so that the waterproof structure is formed. The dispensing area of the structure is very large, so that the dispensing quantity is very large, and the reliability and stability of the waterproof seal are low. Therefore, there is a need for improvements in current waterproof connectors.

Disclosure of utility model

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and it is a primary object of the present utility model to provide a waterproof connector, which can effectively solve the problems of large dispensing area, large dispensing amount and lower reliability and stability of waterproof sealing in the existing waterproof connection.

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

A waterproof connector comprises an insulating body, a plurality of terminals and a shielding shell; the insulating body comprises a base and a tongue plate extending forwards on the base; the terminals and the insulating body are fixed together by insert molding, each terminal is provided with a contact part and a welding part, the contact part is exposed on the surface of the tongue plate, and the welding part extends out of the base backwards; the shielding shell is coated outside the insulating body; the plastic shell is provided with a sealing cavity with a forward opening, the rear end face of the plastic shell is concavely provided with a dispensing groove, and the bottom surface of the dispensing groove is provided with a slotted hole communicated with the sealing cavity; the insulating body and the shielding shell are both positioned in the sealing cavity, the rear end face of the base is convexly provided with a boss, the boss is matched with the slotted hole and is inserted into the slotted hole from front to back, the welding part of each terminal penetrates through the boss backwards, and the welding part of each terminal penetrates through the glue dispensing groove and extends out of the plastic shell.

As a preferable scheme, the slotted hole is cone-shaped, the inner diameter of the slotted hole is gradually reduced from front to back, the boss is of a frustum structure, the boss is tightly matched with the slotted hole, after dispensing is performed on the glue dispensing groove, glue permeates between the outer wall of the boss and the inner wall of the slotted hole to form a waterproof sealing structure, and the waterproof sealing effect is better.

As a preferable scheme, the front end periphery side of the plastic shell is convexly provided with a baffle ring, the front side of the baffle ring is provided with an annular caulking groove, and a sealing ring is arranged in the annular caulking groove, so that the front end of the product and the equipment cabinet form a waterproof sealing effect.

As a preferable scheme, the rear end face of the plastic shell is concavely provided with a plurality of positioning grooves, and the welding parts of the terminals are respectively embedded in the corresponding positioning grooves and downwards extend out of the bottom face of the plastic shell, so that the vertical positioning installation with an external circuit board is realized, and the installation is simpler and more convenient.

As a preferable scheme, the plastic shell is sleeved with a fixing shell, and fixing feet are arranged at the bottoms of two sides of the fixing shell so as to firmly install and fix the product on an external circuit board.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:

through protruding boss that is equipped with at the rear end face of base to the slot hole in the sealed chamber of intercommunication is seted up to the bottom surface of cooperation in the point gum groove, in the boss inserts the slot hole, with the point gum area between greatly reduced base and the plastic shell, the point gum volume is less, also makes waterproof sealed reliability and stability obtain very big promotion simultaneously, and waterproof grade can reach IP68.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present utility model;

FIG. 2 is an assembled perspective view of another angle of the preferred embodiment of the present utility model;

FIG. 3 is an exploded view of a preferred embodiment of the present utility model;

FIG. 4 is an exploded view of another angle of the preferred embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a preferred embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. insulation body 11, base

12. Tongue 13 and boss

20. Terminal 21, contact portion

22. Welded part 30, shield shell

31. Spring 40, plastic shell

41. Seal cavity 42 and dispensing groove

43. Slotted hole 44 and baffle ring

45. Annular caulking groove 46 and positioning groove

50. Sealing ring 60, fixing case

61. And fixing the feet.

Detailed Description

Referring to fig. 1 to 5, a specific structure of a preferred embodiment of the present utility model is shown, which includes an insulation body 10, a plurality of terminals 20, a shielding shell 30 and a plastic housing 40.

The insulating body 10 comprises a base 11 and a tongue plate 12 extending forwards on the base 11; the rear end surface of the base 11 is provided with a boss 13. In this embodiment, the insulating body 10 is made of an integrally molded material, the boss 13 is of a frustum structure, and the boss 13 extends laterally.

The plurality of terminals 20 are insert-molded and fixed with the insulative housing 10, each terminal 20 has a contact portion 21 and a welding portion 22, the contact portion 21 is exposed on the surface of the tongue plate 12, the welding portion 22 protrudes rearward from the base 11, and the welding portion 22 of each terminal 20 passes rearward through the boss 13. In this embodiment, the terminals 20 are four terminals arranged side by side, which are USB dome terminals.

The shielding shell 30 is coated outside the insulating body 10; in this embodiment, the shielding shell 30 is made of an iron shell, and the upper side wall and the lower side wall of the shielding shell are punched with elastic pieces 31 to increase the insertion force, and the shielding shell 30 is assembled on the insulating body 10 from front to back and is riveted and fixed with the base 11.

The plastic shell 40 is provided with a sealing cavity 41 with a forward opening, the rear end surface of the plastic shell 40 is concavely provided with a dispensing groove 42, and the bottom surface of the dispensing groove 42 is provided with a slot 43 communicated with the sealing cavity 41; the insulating body 10 and the shielding shell 30 are both located in the sealing cavity 41, the boss 13 is matched with the slot hole 43 and is inserted into the slot hole 43 from front to back, and the welding portion 22 of each terminal 20 passes through the dispensing slot 42 and protrudes out of the plastic housing 40. In this embodiment, the plastic housing 40 is an integral injection molding structure, the slot 43 is tapered, the inner diameter of the slot is gradually reduced from front to back, the boss 13 is tightly matched with the slot 43, after dispensing the glue in the dispensing slot 42, glue (not shown in the figure) permeates between the outer wall of the boss 13 and the inner wall of the slot 43 to form a waterproof sealing structure, the waterproof sealing effect is better, and the length of the boss 13 is smaller than the length of the slot 43, so that the boss 13 does not protrude out of the slot 43 backward, the glue is better filled, and the waterproof sealing effect can be further improved. And, the front end peripheral side of the plastic housing 40 is convexly provided with a baffle ring 44, the front side of the baffle ring 44 is formed with an annular caulking groove 45, and a sealing ring 50 is arranged in the annular caulking groove 45, so that the front end of the product and the equipment cabinet form a waterproof sealing effect. In addition, the rear end surface of the plastic housing 40 is concavely provided with a plurality of positioning grooves 46, and the welding parts 22 of the plurality of terminals 20 are respectively embedded in the corresponding positioning grooves 46 and extend downwards out of the bottom surface of the plastic housing 40, so that the vertical positioning and installation with an external circuit board can be realized, and the installation is simpler and more convenient.

In addition, the plastic housing 40 is sleeved with a fixing shell 60, and fixing feet 61 are arranged at the bottoms of two sides of the fixing shell 60 so as to firmly mount and fix the product on an external circuit board. In this embodiment, the fixing case 60 is made of iron case, and is in an inverted U shape, which is assembled on the plastic case 40 from back to front and is riveted and fixed with the plastic case 40.

The assembly process of this embodiment is described in detail as follows:

Firstly, placing a plurality of terminals 20 into an injection mold to perform injection molding to obtain an insulating body 10, so that the plurality of terminals 20 are fixed on the insulating body 10 in an insert molding manner, and then, sleeving a shielding shell 30 on the insulating body 10 to form a semi-finished product, wherein the welding parts 22 of the terminals 20 are not bent; then, the plastic housing 40 is injection molded, the semi-finished product is embedded into the sealing cavity 41 from front to back, the boss 13 is inserted into the slot 43 to be tightly matched, then the welding part 22 is bent, then the dispensing is performed in the dispensing slot 42, after the dispensing, the glue permeates between the outer wall of the boss 13 and the inner wall of the slot 43 to form a waterproof sealing structure, and finally, the sealing ring 50 and the fixing shell 60 are assembled on the plastic housing 40.

When the waterproof sealing device is used, the waterproof sealing device is fixed on a circuit board, each welding part 22 is welded and communicated with the circuit board, meanwhile, the sealing ring 50 is tightly matched with the inner side of a jack of an equipment case to realize sealing installation, and through use test, the waterproof sealing device can reach the waterproof grade of IP68, so that external water vapor cannot continuously permeate into the case after entering the sealing cavity 41.

The design focus of the utility model is that: through protruding boss that is equipped with at the rear end face of base to the slot hole in the sealed chamber of intercommunication is seted up to the bottom surface of cooperation in the point gum groove, in the boss inserts the slot hole, with the point gum area between greatly reduced base and the plastic shell, the point gum volume is less, also makes waterproof sealed reliability and stability obtain very big promotion simultaneously, and waterproof grade can reach IP68.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. A waterproof connector comprises an insulating body, a plurality of terminals and a shielding shell; the insulating body comprises a base and a tongue plate extending forwards on the base; the terminals and the insulating body are fixed together by insert molding, each terminal is provided with a contact part and a welding part, the contact part is exposed on the surface of the tongue plate, and the welding part extends out of the base backwards; the shielding shell is coated outside the insulating body; the method is characterized in that: the plastic shell is provided with a sealing cavity with a forward opening, the rear end face of the plastic shell is concavely provided with a dispensing groove, and the bottom surface of the dispensing groove is provided with a slotted hole communicated with the sealing cavity; the insulating body and the shielding shell are both positioned in the sealing cavity, the rear end face of the base is convexly provided with a boss, the boss is matched with the slotted hole and is inserted into the slotted hole from front to back, the welding part of each terminal penetrates through the boss backwards, and the welding part of each terminal penetrates through the glue dispensing groove and extends out of the plastic shell.

2. The waterproof connector of claim 1, wherein: the slot hole is cone-shaped, the inner diameter of the slot hole is gradually reduced from front to back, the boss is of a frustum structure, the boss is tightly matched with the slot hole, and after dispensing of the dispensing slot, glue permeates to the space between the outer wall of the boss and the inner wall of the slot hole to form a waterproof sealing structure.

3. The waterproof connector of claim 1, wherein: the front end periphery side of plastic shell is protruding to be equipped with the baffle ring, and the front side of this baffle ring is formed with annular caulking groove, is provided with the sealing ring in this annular caulking groove.

4. The waterproof connector of claim 1, wherein: the rear end face of the plastic shell is concavely provided with a plurality of positioning grooves, and welding parts of the terminals are respectively embedded in the corresponding positioning grooves and extend downwards out of the bottom face of the plastic shell.

5. The waterproof connector of claim 1, wherein: the plastic shell is sleeved with a fixing shell, and fixing feet are arranged at the bottoms of two sides of the fixing shell.