Improved waterproof connector

Abstract

The utility model discloses an improved waterproof connector, comprising a metal housing and an insulator assembly, a terminal assembly is installed in the insulator assembly, the terminal assembly comprises an insertion portion and a welding portion, the insulator assembly comprises a first insulator, the first insulator wraps the insertion portion, and the first insulator wraps the welding portion. A metal inner shell is arranged between the first insulator and the metal outer shell, a shielding sleeve is integrally formed in the metal inner shell, the shielding sleeve partially wraps the first insulator, and a plugging piece is arranged at one end, far away from the insertion part, of the first insulator. According to the invention, the plugging member is arranged, so that external water is prevented from flowing into the welding part and the circuit board through a gap between the first insulator and the metal outer shell, and the occurrence of a circuit is avoided; the waterproof effect is further improved, the electromagnetic shielding effect on the terminal is guaranteed, the number of assembly parts is reduced, and the production efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and more specifically to an improved waterproof connector. Background Technology

[0002] Electronic devices using Universal Serial Bus (USB) output ports are used in a variety of environments, with increasingly stringent requirements for environmental performance, including safe operation in harsh environments with high humidity. The structure and manufacturing process of Type-C USB connector receptacles involve separately injection molding the core, which is then assembled with the connecting pins (contact terminals). Current technology typically uses an insulating shell and receptacle body, which work together to form the USB receptacle. Type-A USB connector receptacles on the market are not waterproof, have lower safety performance, and are prone to safety hazards. Furthermore, existing shielding components are separate parts, requiring a dedicated workstation for installation. Due to their small size, installing the shielding component alone is time-consuming and prone to producing defective products. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an improved waterproof connector, comprising a metal shell and an insulator assembly enclosed by the metal shell. A terminal assembly is installed within the insulator assembly, the terminal assembly including an insertion portion and a soldering portion. The insertion portion is used to insert into other connectors to form an electrical connection, and the soldering portion is used to connect to a circuit board. The insulator assembly includes a first insulator that wraps around the insertion portion. A metal inner shell is disposed between the first insulator and the metal shell. A shielding sleeve is integrally formed within the metal inner shell, and the shielding sleeve partially encloses the first insulator. A sealing element is disposed at the end of the first insulator away from the insertion portion.

[0004] Furthermore, the first insulator includes a wrapping portion and a fixing portion. The wrapping portion is formed by injection molding and wraps around the insertion portion. The fixing portion is located between the insertion portion and the welding portion and has a cross-section larger than the wrapping portion. The sealing member is closely attached to the side of the fixing portion away from the wrapping portion. The sealing member is made of an elastic material and has a cross-section larger than the fixing portion.

[0005] Furthermore, the shielding sleeve is integrally formed within the metal inner shell using a reverse stretching process. The shielding sleeve includes an integrally formed first bent portion and a second bent portion. The first bent portion is perpendicular to the inner wall of the metal inner shell. The second bent portion is located at the end of the first bent portion away from the metal inner shell and extends towards the insertion portion. The second bent portion is tightly attached to the periphery of the wrapping portion.

[0006] Furthermore, when the second bend covers the periphery of the package, the first bend divides the inner metal shell into a first chamber and a second chamber that are separated from each other. The insertion part and the second bend are located in the first chamber, and the welding part and the sealing part are located in the second chamber.

[0007] Furthermore, the fixing part is disposed in the second cavity and closely attached to the side of the first bending part away from the wrapping part. The fixing part is provided with a plurality of protrusions. When the second cavity contacts the fixing part, the protrusions are used to form an interference fit between the second cavity and the fixing part.

[0008] Furthermore, an opening for inserting other connectors is formed at the end of the inner metal shell away from the outer metal shell, and a sealing ring is fitted over the opening.

[0009] Furthermore, the insulator assembly also includes a second insulator that wraps around the welded portion, and the sealing member is located between the first and second insulators. A pair of limiting portions extend from both sides of the end of the second insulator facing the first insulator, and the sealing member is located between the limiting portions.

[0010] Furthermore, several pins are provided at the bottom of the metal casing.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This application provides a sealing element at the end of the first insulator away from the insertion part, and makes it perpendicular to the insertion part, thereby preventing external water from flowing into the soldering part and circuit board through the gap between the first insulator and the metal shell, which would cause circuit failure. In addition, this application provides a metal inner shell and an integrally formed shielding sleeve between the first insulator and the metal shell, which further improves the waterproof effect and ensures the electromagnetic shielding effect on the terminals. Furthermore, it can reduce the number of assembly parts and further improve production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is an exploded view of the overall structure of this utility model;

[0015] Figure 2This is a schematic diagram showing the assembly state of the terminal assembly and the insulator assembly of this utility model;

[0016] Figure 3 This is an assembly diagram of the metal inner shell, terminal assembly, and insulator assembly of this utility model;

[0017] Figure 4 This is a cross-sectional view of the shielding sleeve, terminal assembly, and insulator assembly of this utility model in their assembled state.

[0018] Figure 5 This is a schematic diagram of the metal casing of this utility model.

[0019] The reference numerals and names in the figure are as follows:

[0020] Metal casing 100, insulator assembly 200, terminal assembly 300, insertion part 310, welding part 320, first insulator 210, sealing part 500, wrapping part 211, fixing part 212, protrusion 212a, metal inner casing 600, opening 610, shielding sleeve 400, first bending part 410, second bending part 420, first chamber 630, second chamber 640, sealing ring 620, second insulator 220, limiting part 221, and pin 110. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] The present invention will now be described in more detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0023] In the description of this utility model, it should be noted that directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom," indicating directions or positional relationships, are generally based on the directions or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. In the description of this utility model, it should be noted that the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0025] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0026] The preferred embodiments of this utility model will now be further described with reference to the accompanying drawings. Figure 1 and Figure 3 As shown, the improved waterproof connector includes a metal housing 100 and an insulator assembly 200 enclosed by the metal housing 100. A terminal assembly 300 is installed within the insulator assembly 200. The terminal assembly 300 includes an insertion portion 310 and a soldering portion 320. The insertion portion 310 is used to insert into other connectors to form an electrical connection, and the soldering portion 320 is used to connect to a circuit board (not shown in the figure). The insulator assembly 200 includes a first insulator 210, which is wrapped around the insertion portion 310. A metal inner shell 600 is disposed between the first insulator 210 and the metal housing 100. A shielding sleeve 400 is integrally formed within the metal inner shell 600, which partially encloses the first insulator 210. A sealing member 500 is disposed at the end of the first insulator 210 away from the insertion portion 310.

[0027] In the implementation of this application, the first insulator 210 and the insertion part 310 of the terminal assembly 300 are first assembled together by injection molding. During this process, a sealing member 500 is provided at the end of the first insulator 210 away from the insertion part 310. Finally, the metal inner shell 600 is inserted from one end of the first insulator 210 so that its shielding sleeve 400 covers the first insulator 210.

[0028] Compared with the prior art, this application provides a sealing member 500 at the end of the first insulator 210 away from the insertion part 310, and makes it perpendicular to the insertion part 310. This can prevent external water from flowing into the soldering part 320 and the circuit board through the gap between the first insulator 210 and the metal shell 100, which would cause circuit failure. In addition, this application provides a metal inner shell 600 and an integrally formed shielding sleeve 400 between the first insulator 210 and the metal shell 100, which can further improve the waterproof effect and ensure the electromagnetic shielding effect of the terminals. Furthermore, it can reduce the number of assembly parts and further improve production efficiency.

[0029] Furthermore, based on the above embodiments, combined with Figure 2 and Figure 3 As shown, the first insulator 210 includes a wrapping portion 211 and a fixing portion 212. The wrapping portion 211 is formed by injection molding and wraps around the insertion portion 310. The fixing portion 212 is located between the insertion portion 310 and the welding portion 320 and has a cross-section larger than the wrapping portion 211. The sealing member 500 is closely attached to the side of the fixing portion 212 away from the wrapping portion 211. The sealing member 500 is made of elastic material and has a cross-section larger than the fixing portion 212. In this way, when the metal shell 100 wraps the insulator assembly 200, it forms a compression around the sealing member 500, thereby ensuring that external water cannot flow into the welding portion 320 and the circuit board through the gap between the first insulator 210 and the metal shell 100.

[0030] Furthermore, based on the above embodiments, combined with Figure 3 and Figure 4 As shown, the shielding sleeve 400 is integrally formed within the metal inner shell 600 using a reverse stretching process. The shielding sleeve 400 includes an integrally formed first bending portion 410 and a second bending portion 420. The first bending portion 410 is perpendicular to the inner wall of the metal inner shell 600. The second bending portion 420 is located at the end of the first bending portion 410 away from the metal inner shell 600 and extends toward the insertion portion 310. The second bending portion 420 is tightly attached to the periphery of the wrapping portion 211, thereby forming an effective electromagnetic shield around the terminal.

[0031] Furthermore, based on the above embodiments, such as Figure 4 As shown, when the second bending portion 420 covers the periphery of the wrapping portion 211, the first bending portion 410 divides the inner metal shell 600 into a first chamber 630 and a second chamber 640 that are separated from each other. The insertion portion 310, the wrapping portion 211 and the second bending portion 420 are located in the first chamber 630, and the welding portion 320, the fixing portion 212 and the sealing member 500 are located in the second chamber 640. In this way, when water enters from the outside, the first bending portion 410 can block the water on one side of the insertion portion 310, further preventing water from flowing into the welding portion 320 and the circuit board, which could cause circuit failure. Thus, in this embodiment, the first bending portion 410 not only serves to connect the inner metal shell 600 and the second bending portion 420, but also serves to provide waterproofing.

[0032] Furthermore, based on the above embodiments, combined with Figure 3 and Figure 4 As shown, the fixing part 212 is disposed in the second chamber 640 and closely abuts the side of the first bent part 410 away from the wrapping part 211. The fixing part 212 is provided with a plurality of protrusions 212a. When the second chamber 640 contacts the fixing part 212, the protrusions 212a are used to form an interference fit between the second chamber 640 and the fixing part 212, thereby ensuring that the metal inner shell 600 can be firmly fixed together with the first insulator 210.

[0033] Furthermore, based on the above embodiments, such as Figure 2 As shown, an opening 610 for inserting other connectors is formed at the end of the metal inner shell 600 away from the metal outer shell. A sealing ring 620 is sleeved on the outside of the opening 610. When the other connector is inserted through the opening 610, the sealing ring 620 can prevent external water from entering the metal inner shell 600 through the opening 610, thereby further improving the waterproof performance.

[0034] Furthermore, based on the above embodiments, such as Figure 3 As shown, the insulator assembly 200 further includes a second insulator 220, which wraps around the welded portion 320. The sealing member 500 is located between the first insulator 210 and the second insulator 220. A pair of limiting portions 221 extend from both sides of the end of the second insulator 220 facing the first insulator 210. The sealing member 500 is located between the limiting portions 221, so that the sealing member 500 is limited on all sides, which can further prevent the sealing member 500 from shaking and causing the sealing effect to deteriorate.

[0035] Furthermore, based on the above embodiments, such as Figure 5As shown, a plurality of pins 110 are provided at the bottom of the metal housing, and the pins 110 are used to fix the entire product onto the circuit board.

[0036] The details of the above exemplary embodiments are provided, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. An improved waterproof connector, characterized in that, The device includes a metal housing (100) and an insulator assembly (200) enclosed by the metal housing (100). A terminal assembly (300) is installed inside the insulator assembly (200). The terminal assembly (300) includes an insertion part (310) and a soldering part (320). The insertion part (310) is used to insert other connectors to form an electrical connection, and the soldering part (320) is used to connect to a circuit board. The insulator assembly (200) includes a first insulator (210) which is wrapped around the insertion part (310). A metal inner shell (600) is disposed between the first insulator (210) and the metal housing (100). A shielding sleeve (400) is integrally formed inside the metal inner shell (600) and partially wraps around the first insulator (210). A sealing member (500) is disposed at the end of the first insulator (210) away from the insertion part (310).

2. The improved waterproof connector according to claim 1, characterized in that, The first insulator (210) includes a wrapping part (211) and a fixing part (212). The wrapping part (211) is formed by injection molding and wraps around the insertion part (310). The fixing part (212) is located between the insertion part (310) and the welding part (320) and has a cross-section larger than that of the wrapping part (211). The sealing member (500) is closely attached to the side of the fixing part (212) away from the wrapping part (211). The sealing member (500) is made of elastic material and has a cross-section larger than that of the fixing part (212).

3. The improved waterproof connector according to claim 2, characterized in that, The shielding sleeve (400) is integrally formed inside the metal inner shell (600) using a reverse stretching process. The shielding sleeve (400) includes an integrally formed first bending portion (410) and a second bending portion (420). The first bending portion (410) is perpendicular to the inner wall of the metal inner shell (600). The second bending portion (420) is located at the end of the first bending portion (410) away from the metal inner shell (600) and extends towards the insertion portion (310). The second bending portion (420) is tightly attached to the periphery of the wrapping portion (211).

4. The improved waterproof connector according to claim 3, characterized in that, When the second bend (420) covers the periphery of the wrapping part (211), the first bend (410) divides the inner metal shell (600) into a first chamber (630) and a second chamber (640) that are separated from each other. The insertion part (310) and the second bend (420) are located in the first chamber (630), and the welding part (320) and the sealing part (500) are located in the second chamber (640).

5. The improved waterproof connector according to claim 4, characterized in that, The fixing part (212) is disposed in the second chamber (640) and closely attached to the side of the first bending part (410) away from the wrapping part (211). The fixing part (212) is provided with a plurality of protrusions (212a). When the second chamber (640) contacts the fixing part (212), the protrusions (212a) are used to form an interference fit between the second chamber (640) and the fixing part (212).

6. The improved waterproof connector according to claim 1, characterized in that, An opening (610) for inserting other connectors is formed at the end of the inner metal shell (600) away from the outer metal shell (100), and a sealing ring (620) is fitted around the outside of the opening (610).

7. The improved waterproof connector according to claim 1, characterized in that, The insulator assembly (200) further includes a second insulator (220) which wraps around the welded portion (320). The sealing member (500) is located between the first insulator (210) and the second insulator (220). A pair of limiting portions (221) extend from both sides of the end of the second insulator (220) facing the first insulator (210), and the sealing member (500) is located between the limiting portions (221).

8. The improved waterproof connector according to claim 1, characterized in that, Several pins (110) are provided at the bottom of the metal casing (100).

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