Improved waterproof connector

Abstract

The utility model relates to an improved waterproof connector. The improved waterproof connector comprises an insulating body, terminals, a shielding shell, an outer waterproof ring and an inner waterproof ring. Wherein the elastic inner waterproof ring is formed on the base in an injection molding manner, so that the sealing performance is better, the assembly procedures can be reduced, and the manufacturing cost is reduced. When the insulating body is assembled in the shielding shell, the inner waterproof ring can achieve a better waterproof effect, and water cannot permeate from the interior of the shielding shell. The elastic outer waterproof ring can be sleeved at the opening of the shielding shell in an assembly mode or an injection molding mode, so that water can effectively and conveniently enter the equipment along the outer wall of the shielding shell. When the connector is assembled, the front part of the shielding shell tightly presses the inner flange, and a better waterproof effect can be achieved. The mounting lugs can be used for mounting and heat dissipation. The top of each mounting lug is hollowed to form a heat dissipation hole which can be used for air heat dissipation, so that the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an improved waterproof connector. Background Art

[0002] Connectors have been widely used in various electronic devices, and through connectors, the transmission and reception of signals with each other can be realized. Generally, in outdoor environments or environments with more water vapor, the connectors of electronic devices are prone to moisture absorption, which affects electrical conduction and may even lead to damage to electronic products. In particular, there are often gaps in the assembly structures of connector plugs or sockets, and water vapor is likely to penetrate into the connector interior through the gaps. Therefore, the waterproof structure of connectors is extremely important.

[0003] Most of the connectors on the market still achieve waterproofing through sealing rings. For example, a sealing ring is sleeved on the base of the insulating body, and then the insulating body is assembled in the shielding shell to achieve sealing and waterproofing. The sealing ring needs to be assembled on the base through an additional process, which will increase the cost and the sealing effect is average.

[0004] For example, the waterproof connector with the patent number CN201620276282.2 specifically discloses that "the sealing ring is annular, sleeved on the receiving channel, and pressed by the shielding shell in the receiving channel". The above design is adopted, and the sealing ring needs an additional process to be assembled on the base, resulting in increased cost and average sealing effect. Content of the Utility Model

[0005] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide an improved waterproof connector, on which an inner waterproof ring is formed by injection molding on the base, reducing the process, saving costs, and having better waterproof performance, thus overcoming the deficiencies of the existing technology.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] The present application provides an improved waterproof connector, including an insulating body, the insulating body includes a tongue plate and a base formed integrally; an inner waterproof ring is formed by injection molding on the base;

[0008] A plurality of terminals are injection-molded and combined with the insulating body, the contact ends of the terminals are exposed on the tongue plate, and the pin ends of the terminals extend out from the base;

[0009] A shielding shell wraps the insulating body, and the tongue plate is suspended in the shielding shell; a limiting block extends from the back of the base, and the limiting block can be blocked by the back of the shielding shell; a retaining piece is formed by bending the back of the mounting ear, and the retaining piece can block on the back of the base;

[0010] A cylindrical outer waterproof ring is arranged at the opening of the shielding shell; wherein, both ends of the outer waterproof ring have openings; an inner flange is arranged at the opening of one end, and the inner flange abuts against the front part of the shielding shell; at least one water blocking ring is convexly arranged on the outside of the outer waterproof ring;

[0011] The middle part of the mounting ear is bent to form an embedding groove; the embedding groove is embedded in the shielding shell, and the opening of the embedding groove is welded to the shielding shell; mounting holes are arranged at the left and right ends of the mounting ear, and a plurality of heat dissipation holes are formed by hollowing out the top of the mounting ear.

[0012] Preferably, the terminal includes a grounding terminal, the contact end of the grounding terminal is exposed at the side of the tongue plate, the pin end of the grounding terminal is exposed at the side of the base, and is in contact with the shielding shell.

[0013] Preferably, a positioning groove is arranged at the bottom of the base, and a protruding part is formed inward on the bottom wall of the shielding shell, and the protruding part can slide into the positioning groove.

[0014] Preferably, a plurality of positioning teeth are formed at intervals in the front part of the mounting ear.

[0015] Preferably, a protection foot is bent and extended from the back of the mounting ear, and the pin end of the terminal is flush with the protection foot or on the inner side of the protection foot.

[0016] Preferably, glue is arranged between the outer waterproof ring and the shielding shell.

[0017] Preferably, a layer of hot melt adhesive is further arranged on the base, and the hot melt adhesive bonds the inner wall of the shielding shell and the base together.

[0018] Preferably, the insulating body is a fitting made of ABS material, and the inner waterproof ring is a fitting made of TPE material.

[0019] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the improved waterproof connector includes an insulating body, a terminal, a shielding shell, an outer waterproof ring, and an inner waterproof ring. Among them, the elastic inner waterproof ring is injection molded on the base, with better sealing performance, which can reduce the assembly process and lower the manufacturing cost. When the insulating body is assembled inside the shielding shell, the inner waterproof ring can achieve a better waterproof effect, and water cannot penetrate into the shielding shell from the inside.

[0020] The elastic outer waterproof ring can be sleeved at the opening of the shielding shell in an assembled or injection molded manner, which can effectively prevent water from entering the device along the outer wall of the shielding shell. When the connector is assembled, the front part of the shielding shell presses the inner flange, which can achieve a better waterproof effect.

[0021] The mounting ears can be used for mounting and heat dissipation. The heat dissipation holes formed by hollowing out the top of the mounting ears can be used for air heat dissipation to improve the heat dissipation efficiency. Description of the Drawings

[0022] Figure 1 is a front schematic view of an embodiment of the present invention.

[0023] Figure 2 is a back schematic view of an embodiment of the present invention.

[0024] Figure 3 is a bottom schematic view of an embodiment of the present invention.

[0025] Figure 4 is a top schematic view of an embodiment of the present invention.

[0026] Figure 5 is a side schematic view of an embodiment of the present invention.

[0027] Figure 6 is a vertical cross-sectional view of an embodiment of the present invention.

[0028] Figure 7 is a horizontal cross-sectional view of an embodiment of the present invention.

[0029] Description of the Reference Numerals:

[0030] 10. Insulating body; 11. Tongue plate; 12. Base; 13. Protrusion; 14. Limit block; 15. Inner waterproof ring; 20. Terminal; 21. Grounding terminal; 30. Shielding shell; 31. Flap; 32. Outer waterproof ring; 33. Inner flange; 34. Water blocking ring; 40. Mounting ear; 41. Heat dissipation hole; 42. Positioning tooth; 43. Protection foot; 44. Mounting hole; 50. Equipment shell. Detailed Description of the Invention

[0031] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and effects according to the present invention as follows.

[0032] Please refer to Figures 1 to 7 as shown, which shows the specific structure of the preferred embodiment of the present invention, and is an improved waterproof connector.

[0033] Among them, the inner waterproof ring 15 is injection molded on the base 12, which reduces the subsequent assembly procedure of the sealing ring, has higher efficiency, lower cost, and better sealing degree.

[0034] This application provides an improved waterproof connector, which includes an insulating body 10. The insulating body 10 includes an integrally formed tongue plate 11 and a base 12. An inner waterproof ring 15 is injection-molded on the base 12. The insulating body 10 is insulating. During production, the terminals 20 are injection-molded together with the insulating body 10, and then an annular groove is reserved on the base 12. The elastic inner waterproof ring 15 is injection-molded in this annular groove, which reduces the next assembly process and improves production efficiency and waterproof effect.

[0035] A plurality of terminals 20 are injection-molded and combined with the insulating body 10. The contact ends of the terminals 20 are exposed on the tongue plate 11, and the pin ends of the terminals 20 protrude from the base 12. Preferably, the pin ends of the terminals 20 are horizontal after being bent, and are offset in the upper and lower rows, so that sufficient space can be obtained for convenient assembly.

[0036] A shielding case 30 is wrapped around the insulating body 10, and the tongue plate 11 is suspended in the shielding case 30. A limiting block 14 extends from the back of the base 12, and the limiting block 14 can be blocked by the back of the shielding case 30. A retaining piece 31 is formed by bending the back of the mounting ear 40, and the retaining piece 31 can block the back of the base 12. When the insulating body 10 and the shielding case 30 are assembled, after the insulating body 10 is inserted into place from the back of the shielding case 30, the limiting block 14 blocks the shielding case 30, and then the retaining piece 31 blocks the back of the base 12, thus completing the assembly of the insulating body 10 and the shielding case 30, which is very simple.

[0037] A cylindrical outer waterproof ring 32 is sleeved at the opening of the shielding case 30. Among them, both ends of the outer waterproof ring 32 have openings. An inner flange 33 is provided at the opening of one end, and the inner flange 33 abuts against the front of the shielding case 30. At least one water-blocking ring 34 is protrudingly provided on the outside of the outer waterproof ring 32. The outer waterproof ring 32 has elasticity and can be sleeved at the opening of the shielding case 30 by injection molding or assembly. The water-blocking ring 34 can prevent water from entering the device interior along the shielding case 30. When the connector is assembled, the shielding case 30 presses the inner flange 33 against the inner wall of the device housing 50, which can further improve the waterproof effect.

[0038] The middle part of the mounting ear 40 is bent to form an embedding groove. The embedding groove is embedded in the shielding case 30, and the opening of the embedding groove is welded to the shielding case 30. Mounting holes 44 are provided at the left and right ends of the mounting ear 40, and a plurality of heat dissipation holes 41 are formed by hollowing out the top of the mounting ear 40. The mounting ear 40 provides a mounting function, and at the same time, the heat of the shielding case 30 can be transferred to the mounting ear 40 for heat dissipation. In particular, the heat dissipation holes 41 formed by hollowing out the top of the mounting ear 40 can further improve the heat dissipation efficiency.

[0039] Preferably, the terminal 20 includes a ground terminal 21. The contact end of the ground terminal 21 is exposed on the side of the tongue plate 11, and the pin end of the ground terminal 21 is exposed on the side of the base 12 and contacts the shielding case 30. The ground terminal 21 is electrically connected to the shielding case 30, so that the shielding case 30 can be grounded by the ground terminal 21 ingeniously, and the structure is very simple.

[0040] Preferably, a positioning groove is provided at the bottom of the base 12, and a protruding portion 13 is formed inwardly on the bottom wall of the shielding case 30. The protruding portion 13 can slide into the positioning groove. This design is beneficial to judge whether the insulating body 10 is accurately assembled in place, and at the same time, it can also enhance the connection firmness between the shielding case 30 and the insulating body 10 and prevent it from loosening.

[0041] Preferably, a plurality of positioning teeth 42 are formed at intervals in the front part of the mounting ear 40. The positioning teeth 42 are used for positioning the mounting ear 40. During assembly, the shielding case 30 is fixed, and then the mounting ear 40 is pushed along the outer wall of the shielding case 30 to the in-place position. The positioning teeth 42 can be used to fix the mounting ear 40 at the welding position of the shielding case 30, ensuring the assembly accuracy of the two and improving the assembly efficiency.

[0042] Preferably, a protective leg 43 is bent and extended from the back of the mounting ear 40, and the pin end of the terminal 20 is flush with the protective leg 43 or is inside the protective leg 43. The protective leg 43 has a certain strength and anti-bending ability, and can provide protection for the pin end of the terminal 20 before the connector is assembled, preventing the pin end of the terminal 20 from being touched and bent.

[0043] Preferably, glue is provided between the outer waterproof ring 32 and the shielding case 30, which can improve the connection strength and sealing performance between the outer waterproof ring 32 and the shielding case 30.

[0044] Preferably, a layer of hot melt adhesive is also provided on the base 12, and the hot melt adhesive bonds the inner wall of the shielding case 30 and the base 12 together. The hot melt adhesive has bonding ability when heated. After the insulating body 10 is assembled in the shielding case 30, the shielding case 30 is heated, so that the hot melt adhesive bonds the inner wall of the shielding case 30 and the base 12 together, and the waterproof performance is better.

[0045] Preferably, the insulating body 10 is a fitting made of ABS material, and the inner waterproof ring 15 is a fitting made of TPE material. ABS plastic is a terpolymer of three monomers: acrylonitrile (A), butadiene (B), and styrene (S). The relative contents of the three monomers can be changed arbitrarily to make various resins. Thermoplastic elastomer TPE / TPR, also known as artificial rubber or synthetic rubber.

[0046] In summary, the design focus of the present utility model lies in that the elastic inner waterproof ring 15 is injection-molded on the base 12, which has better sealing performance, can reduce the assembly process, and lower the manufacturing cost. When the insulating body 10 is assembled inside the shielding case 30, the inner waterproof ring 15 can achieve a better waterproof effect, and water cannot penetrate from the inside of the shielding case.

[0047] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief 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. An improved waterproof connector, characterized in that: The insulating body comprises an insulating body, wherein the insulating body comprises an integrally formed tongue plate and a base; an inner waterproof ring is formed by injection molding on the base; A plurality of terminals are injection-molded and combined with the insulating body, the contact ends of the terminals are exposed on the tongue plate, and the pin ends of the terminals extend from the base; The shielding shell is wrapped around the insulating body, and the tongue plate is suspended in the shielding shell; a limit block is extended from the back of the base, and the limit block can be stopped by the back of the shielding shell; the back of the mounting ear is bent to form a stopper, and the stopper can stop the back of the base; A cylindrical outer waterproof ring is arranged at the opening of the shielding shell; wherein the outer waterproof ring has openings at both ends; an inner flange is arranged at the opening of one end, and the inner flange abuts against the front of the shielding shell; the outer protrusion of the outer waterproof ring is provided with at least one water blocking ring; The middle part of the mounting ear is bent to form an embedding groove; the embedding groove is embedded in the shielding shell, and the opening of the embedding groove is welded to the shielding shell; mounting holes are arranged at the left and right ends of the mounting ear, and the top of the mounting ear is hollowed out to form a plurality of heat dissipation holes.

2. An improved waterproof connector according to claim 1, characterized in that: The terminals include a ground terminal, a contact end of the ground terminal is exposed at a side of the tongue plate, and a pin end of the ground terminal is exposed at a side of the base and contacts the shielding shell.

3. An improved waterproof connector according to claim 1, characterized in that: The bottom of the base is provided with a positioning groove, and the bottom wall of the shielding shell is formed with a protrusion inwardly, and the protrusion can slide into the positioning groove.

4. An improved waterproof connector according to claim 1, characterized in that: A plurality of positioning teeth are formed at intervals on the front of the mounting ear.

5. An improved waterproof connector according to claim 1, characterized in that: A protective foot is bent and extended from the back of the mounting ear, and the pin end of the terminal is flush with the protective foot or is on the inner side of the protective foot.

6. An improved waterproof connector according to claim 1, characterized in that: Glue is arranged between the outer waterproof ring and the shielding shell.

7. An improved waterproof connector according to claim 1, characterized in that: The base is also provided with a layer of hot melt adhesive, which bonds the inner wall of the shielding shell and the base together.

8. An improved waterproof connector according to claim 1, characterized in that: The insulating body is an accessory made of ABS material, and the inner waterproof ring is an accessory made of TPE material.

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