Connector with front and back waterproof function

Abstract

The utility model discloses a connector with a front and back waterproof function. Waterproof parts are respectively arranged on the side wall of the rear end of a body part in a protruding manner towards the outer periphery; the rear end of the shielding shell abuts against the front end face of the waterproof part, and the waterproof part extends out of the peripheral side wall of the shielding shell. A waterproof groove is defined by the rear end of the waterproof piece, the rear end of the shielding shell and the waterproof part; even if part of water vapor enters the waterproof groove through the sealant in the waterproof groove, the water vapor can be prevented from continuously entering the connector inwards through the arrangement of the waterproof part, meanwhile, the front end face of the waterproof piece is inwards concavely provided with the mounting groove, and the waterproof ring is mounted in the mounting groove from front to back, so that when the waterproof piece is plugged with an external connector, the waterproof ring can be prevented from entering the connector inwards. The waterproof ring and the end face of the external connector are in extrusion fit to prevent external water from entering the connecting position of the connector, and the waterproof ring with the structure cannot be subjected to friction force in the front-back direction in the inserting process, so that the waterproof ring is prevented from falling off, and the service life of the waterproof ring is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector with front and rear waterproof functions. Background Art

[0002] A connector is also called a coupler. In China, it is also called a connector and a socket, generally referring to an electrical connector. That is, a device connecting two active devices to transmit current or signals. The male end and the female end can transmit information or current after contact, and it is also called a connector. The basic performance of a connector can be divided into three categories: mechanical performance, electrical performance, and environmental performance. Another important mechanical performance is the mechanical life of the connector. The mechanical life is actually a durability index, which is called mechanical operation in the national standard GB5095. It takes one insertion and one extraction as a cycle, and whether the connector can normally complete its connection function (such as the contact resistance value) after the specified number of plugging and unplugging cycles is used as the evaluation basis.

[0003] In order to meet more usage scenarios, a waterproof structure is added to the connector to improve its waterproof performance. The existing waterproof connectors generally embed a ring-shaped waterproof ring on the inner side wall of the insertion slot. When plugging with an external connector, the waterproof ring is squeezed and cooperated with the side wall of the external connector to achieve waterproofness. However, in the plugging process, the waterproof ring will be subject to front and rear frictional forces, and the waterproof ring is likely to fall off after multiple uses, affecting the service life of the waterproof ring; at the same time, a waterproof groove is formed by the shielding shell extending backward from the insulating body at the rear end, and it is sealed with a sealant. However, a horizontal gap will be formed between the shielding shell and the insulating body. After long-term use, water vapor will still enter the gap between the shielding shell and the insulating body through the gap between the sealant and the shielding shell, and the insulation effect is not good. Therefore, it is necessary to further improve the existing connector structure. Summary of the Utility Model

[0004] In view of this, in view of the deficiencies existing in the prior art, the main purpose of the present utility model is to provide a connector with front and rear waterproof functions, which can effectively solve the problems of easy falling off of the waterproof ring of the existing waterproof connector, short service life of the waterproof ring, and poor waterproof effect.

[0005] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A connector with front and rear waterproof functions, comprising an insulating body, a shielding shell, a terminal group, a waterproof member and a waterproof ring; the insulating body includes a body portion and a tongue plate integrally extending forward from the front end of the body portion, and waterproof portions are respectively protruded outward from the peripheral edge of the rear side wall of the body portion; the shielding shell is sleeved on the insulating body, and a plugging cavity is formed by enclosing the front end of the shielding shell and the tongue plate, the rear end of the shielding shell abuts against the front end surface of the waterproof portion, and the waterproof portion extends out of the outer peripheral side wall of the shielding shell; the terminal group is embedded in the insulating body; the waterproof member is sleeved on the outer peripheral edge of the shielding shell, an installation groove is recessed inward on the front end surface of the waterproof member, and a waterproof groove is formed by enclosing the rear end of the waterproof member, the rear end of the shielding shell and the waterproof portion; the waterproof ring is loaded into the installation groove from front to back.

[0007] As a preferred solution, a positioning portion extends backward from the rear end of the shielding shell, and the positioning portion is provided with at least two.

[0008] As a preferred solution, the front end surface of the waterproof member is located behind the front end surface of the shielding shell, and the installation groove fits the outer side wall of the shielding shell.

[0009] As a preferred solution, the terminal group includes a plurality of terminals, and each terminal integrally forms a main body portion, a contact portion and a welding portion; the main body portion is embedded in the body portion, and a spacing portion is formed by bending the main body portion horizontally; the contact portion is embedded in the tongue plate and exposed on the surface of the tongue plate; the welding portion is integrally bent and formed from the rear end of the spacing portion, and the plurality of welding portions are separated from each other by bending the spacing portion.

[0010] As a preferred solution, buckling portions are protruded outward from the upper and lower end surfaces of the body portion, buckling holes matched with the buckling portions are formed on the shielding shell, and the shielding shell is installed on the insulating body through the cooperation of the buckling holes and the buckling portions.

[0011] As a preferred solution, elastic pieces are integrally bent and formed on the upper and lower side walls of the shielding shell, and the movable ends of the elastic pieces extend inward into the plugging cavity.

[0012] As a preferred solution, the waterproof ring is made of rubber material.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0014] The rear side wall of the body part is respectively convexly provided with waterproof parts towards the outer periphery; the rear end of the shielding shell abuts against the front end face of the waterproof part, and the waterproof part extends outwards beyond the outer peripheral side wall of the shielding shell; and the rear end of the waterproof member cooperates with the rear end of the shielding shell and the waterproof part to enclose a waterproof groove. Even if part of the water vapor enters the waterproof groove through the sealant in the waterproof groove, the waterproof part can block it from continuing to enter the connector internally, effectively improving the waterproof performance. At the same time, the front end face of the waterproof member is concavely provided with an installation groove, and the waterproof ring is inserted into the installation groove from front to back. When plugging with an external connector, through the extrusion fit between the waterproof ring and the end face of the external connector, external moisture is prevented from entering the connection part of the connector. The waterproof ring of this structure will not be subjected to frictional force in the front-back direction during the plugging process, but only to a backward extrusion force, making the installation structure of the waterproof ring more and more stable, thereby preventing the waterproof ring from falling off and effectively ensuring the service life of the waterproof ring.

[0015] To more clearly elaborate the structural features and functions of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a preferred embodiment of the present utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of another angle of a preferred embodiment of the present utility model;

[0018] Figure 3 is an exploded state schematic diagram of a preferred embodiment of the present utility model;

[0019] Figure 4 is a partial assembly schematic diagram of a preferred embodiment of the present utility model;

[0020] Figure 5 is a cross-sectional schematic diagram of a preferred embodiment of the present utility model.

[0021] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS:

[0022] 10. Insulating body 11. Body part

[0023] 12. Tongue plate 13. Waterproof part

[0024] 14. Buckle part

[0025] 20. Shielding shell 201. Plugging cavity

[0026] 202. Buckle hole 21. Positioning part

[0027] 22. Elastic piece 30. Terminal group

[0028] 31. Terminal 311. Main body part

[0029] 312. Contact portion 313. Welding portion

[0030] 314. Spacing portion 40. Waterproof member

[0031] 401. Installation groove 402. Waterproof groove

[0032] 50. Waterproof ring. Detailed implementation manner

[0033] Please refer to Figures 1 to 5 as shown, which shows the specific structure of the preferred embodiment of the present utility model, including an insulating body 10, a shielding case 20, a terminal group 30, a waterproof member 40 and a waterproof ring 50.

[0034] The insulating body 10 includes a body portion 11 and a tongue plate 12 integrally extending forward at the front end of the body portion 11. The rear side wall of the body portion 11 is respectively convexly provided with a waterproof portion 13 towards the outer periphery; in this embodiment, the upper and lower end faces of the body portion 11 are convexly provided with buckling portions 14.

[0035] The shielding case 20 is sleeved on the insulating body 10. The front end of the shielding case 20 and the tongue plate 12 enclose and form a plugging cavity 201. The rear end of the shielding case 20 abuts against the front end face of the waterproof portion 13, so that the gap in the front and rear directions between the shielding case 20 and the insulating body 10 is blocked by the waterproof portion 13, thereby preventing external moisture from entering, effectively improving the waterproof performance, and the waterproof portion 13 extends outwards beyond the outer peripheral side wall of the shielding case 20, so that the waterproof portion 13 can be embedded into the external waterproof glue inward, ensuring the stability of the overall structure. In this embodiment, the rear end of the shielding case 20 extends backward with a positioning portion 21. The positioning portion 21 is provided with at least two, and the positioning portion 21 is used for positioning the position of the connector when installed with an external PCB board, facilitating the installation process of the connector. A buckling hole 202 matched with the buckling portion is opened on the shielding case 20, and the shielding case 20 is installed on the insulating body 10 through the cooperation of the buckling hole 202 and the buckling portion 13. Elastic pieces 22 are integrally bent and formed on the upper and lower side walls of the shielding case 20. The movable ends of the elastic pieces 22 extend into the plugging cavity 201 inward. The elastic pieces 22 are used to apply an elastic force to the inserted external connector, thereby increasing the insertion force between the connectors and ensuring the stability of the connection process.

[0036] The terminal group 30 is embedded in the insulating body 10; in this embodiment, the terminal group 30 includes a plurality of terminals 31, and each terminal 31 is integrally formed with a main body portion 311, a contact portion 312, and a welding portion 313; the main body portion 311 is embedded in the body portion 11, and a spacing portion 314 is formed by lateral bending on the main body portion 311; the contact portion 312 is embedded in the tongue plate 12 and exposed on the surface of the tongue plate 12; the welding portion 313 is integrally bent and formed from the rear end of the spacing portion 314, and the plurality of welding portions 313 are separated from each other by the bending of the spacing portion 314, thereby increasing the distance between adjacent welding portions 313, avoiding short - circuit conditions, and at the same time, to a certain extent, preventing signal crosstalk between adjacent terminals 31.

[0037] The waterproof member 40 is sleeved on the outer peripheral edge of the shielding case 20. The front end surface of the waterproof member 40 is recessed inwardly to form an installation groove 401. The rear end of the waterproof member 40 and the rear end of the shielding case 20 and the waterproof portion 13 enclose a waterproof groove 402, and this waterproof groove 402 is used for subsequent coating of waterproof sealant to achieve waterproof performance. In this embodiment, the front end surface of the waterproof member 40 is located behind the front end surface of the shielding case 20, and the installation groove 401 fits the outer side wall of the shielding case 20, thereby preventing the waterproof ring 50 from protruding forward from the front end of the shielding case 20 and being detached due to external force interference.

[0038] The waterproof ring 50 is inserted into the installation groove 401 from front to back, so that the waterproof ring 50 realizes the waterproof function through the extrusion fit of the end surface during the insertion with the external connector. Moreover, during the insertion process, it will not be subject to the frictional force in the front - to - back direction, but only to the extrusion force towards the installation groove 401, thereby preventing the waterproof ring 50 from falling off and effectively improving the service life of the waterproof ring. In this embodiment, the waterproof ring 50 is made of rubber material.

[0039] The design focus of the present utility model lies in: the rear - end side walls of the body portion respectively protrude outwardly towards the outer peripheral edge to form a waterproof portion; the rear end of the shielding case abuts against the front end surface of the waterproof portion, and the waterproof portion protrudes outwardly from the outer peripheral side wall of the shielding case; and in cooperation with the fact that the rear end of the waterproof member and the rear end of the shielding case and the waterproof portion enclose a waterproof groove; such that even if part of the water vapor enters the waterproof groove through the sealant in the waterproof groove, it can be blocked from continuing to enter the connector interior by the setting of the waterproof portion, effectively improving the waterproof performance. At the same time, the front end surface of the waterproof member is recessed inwardly to form an installation groove, and the waterproof ring is inserted into the installation groove from front to back. When inserted with the external connector, through the extrusion fit of the waterproof ring and the end surface of the external connector, it prevents external moisture from entering the connection part of the connector. This structure of the waterproof ring will not be subject to the frictional force in the front - to - back direction during the insertion process, but only to the backward extrusion force, making the installation structure of the waterproof ring more and more stable, thereby preventing the waterproof ring from falling off and effectively ensuring the service life of the waterproof ring.

[0040] The above are only the preferred embodiments of the present utility model, and do not impose any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A connector with front and rear waterproof functions, characterized in that: It comprises an insulating body, a shielding shell, a terminal group, a waterproof part and a waterproof ring; the insulating body comprises a main body and a tongue plate extending forward from the front end of the main body, and the rear end side walls of the main body are respectively provided with waterproof parts protruding toward the outer periphery; the shielding shell is sleeved on the insulating body, and the front end of the shielding shell and the tongue plate surround form a plug-in cavity, the rear end of the shielding shell abuts against the front end surface of the waterproof part, and the waterproof part extends outward from the outer peripheral side wall of the shielding shell; the terminal group is embedded in the insulating body; the waterproof part is sleeved on the outer periphery of the shielding shell, and the front end surface of the waterproof part is inwardly concavely provided with an installation groove, and the rear end of the waterproof part, the rear end of the shielding shell and the waterproof part surround form a waterproof groove; the waterproof ring is installed into the installation groove from front to back.

2. The connector with front and rear waterproof function according to claim 1, characterized in that: A positioning portion is extended backward from the rear end of the shielding shell, and at least two positioning portions are provided.

3. The connector with front and rear waterproof function according to claim 1, characterized in that: The front end surface of the waterproof component is located behind the front end surface of the shielding shell, and the installation groove is in contact with the outer side wall of the shielding shell.

4. The connector with front and rear waterproof function according to claim 1, characterized in that: The terminal group includes a plurality of terminals, each of which includes a main body portion, a contact portion and a welding portion that are integrally formed; the main body portion is embedded in the body portion, and a spacing portion is formed by transverse bending on the main body portion; the contact portion is embedded in the tongue plate and exposed on the surface of the tongue plate; the welding portion is integrally bent from the rear end of the spacing portion, and a plurality of welding portions are separated from each other by the bending of the spacing portion.

5. The connector with front and rear waterproof function according to claim 1, characterized in that: The upper and lower end surfaces of the main body are provided with buckles protruding outwards, the shielding shell is provided with buckle holes matched with the buckles, and the shielding shell is installed on the insulating body through the matching of the buckle holes and the buckles.

6. The connector with front and rear waterproof function according to claim 1, characterized in that: The upper and lower side walls of the shielding shell are integrally bent to form a spring sheet, and the movable end of the spring sheet extends inwardly into the plug-in cavity.

7. The connector with front and rear waterproof function according to claim 1, characterized in that: The waterproof ring is made of rubber.

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