A high-waterproof USB connector

Abstract

This utility model discloses a high-waterproof USB connector, including a first housing, a second housing, a male connector head, and a waterproof sealing sleeve. The male connector head includes a plug portion and a rear plug portion located at the rear end of the plug portion, with a transition step formed between the plug portion and the rear plug portion. The first housing has a first chamber, and the plug portion is located within the first chamber. The second housing has a second chamber, and the rear plug portion is located within the second chamber. The waterproof sealing sleeve has a U-shaped structure with a snap-fit ​​groove in its middle. The transition step is used to seal against the inner wall of the waterproof sealing sleeve when the plug portion passes through the snap-fit ​​groove. The inner wall surface of the waterproof sealing sleeve that abuts against the transition step is coated with a silicone coating. This utility model achieves flexible fit, reduces gaps, and effectively improves the waterproof sealing performance of the USB connector by sealing the transition step against the inner wall of the waterproof sealing sleeve and coating the inner wall of the waterproof sealing sleeve with a silicone coating.

Description

Technical Field

[0001] This utility model relates to the field of USB connectors, and more particularly to a USB connector with a high waterproof rating. Background Technology

[0002] USB connectors are interface components used in various electronic devices, mainly for data transmission and power connection between devices. With the continuous expansion of application scenarios, USB connectors are not only widely used in indoor devices, but are also gradually being applied in outdoor and other fields with high requirements for environmental adaptability.

[0003] However, when used in high-humidity outdoor environments, traditional USB connectors are prone to moisture infiltration due to insufficient waterproof sealing performance, which can cause problems such as poor contact, metal corrosion or short circuits, seriously affecting the service life and performance stability of the USB connector.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a USB connector with stable performance and a high waterproof rating that effectively prevents water vapor from penetrating.

[0006] The technical solution of this utility model is as follows: A USB connector with a high waterproof rating, comprising a first housing, a second housing, a connector male head, and a waterproof sealing sleeve;

[0007] The male connector includes a plug portion and a rear plug portion located at the rear end of the plug portion, and a transition step is formed between the plug portion and the rear plug portion;

[0008] The first housing has a first chamber, and the insertion part is located in the first chamber; the second housing has a second chamber, and the rear plug part is located in the second chamber.

[0009] The waterproof sealing sleeve has a U-shaped structure and a snap-fit ​​groove in the middle. The transition step is used to seal against the inner wall of the waterproof sealing sleeve when the insertion part passes through the snap-fit ​​groove.

[0010] The inner wall surface of the waterproof sealing sleeve that abuts against the transition step is coated with a silicone coating;

[0011] The waterproof sealing sleeve has snap-fit ​​arms extending vertically toward the second housing on both sides. The snap-fit ​​arms have positioning grooves. The two inner sidewalls of the second housing have positioning protrusions. The positioning protrusions are used to connect with the positioning grooves by snap-fit.

[0012] Using the above technical solution, the waterproof sealing sleeve in the high-waterproof USB connector is made of TPU material.

[0013] In the aforementioned high-waterproof USB connector, the first housing has a U-shaped structure, comprising a protruding part and a base part, with a transition arc structure between the protruding part and the base part.

[0014] Using the above technical solutions, in the high waterproof USB connector, the upper and lower walls of the rear plug are respectively provided with protruding structures, and the upper and lower inner walls of the first housing and the second housing are respectively provided with protruding arc grooves that are adapted to the protruding structures.

[0015] Using the above-mentioned technical solutions, in the high-waterproof USB connector, the base of the first housing and the second housing are connected by ultrasonic welding.

[0016] Using the above-mentioned technical solutions, in the high-waterproof USB connector, the second shell has an arc-shaped structure that is wider at the front and narrower at the back.

[0017] Using the above-mentioned technical solutions, in the high-waterproof USB connector, the rear end of the second housing is provided with a wire gathering hole to facilitate the passage of the wire harness.

[0018] Using the above-mentioned technical solutions, in the high-waterproof USB connector, the wall thickness of the waterproof sealing sleeve is 4-6mm.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention allows the male connector's insertion portion to pass through the snap-fit ​​groove in the middle of the waterproof sealing sleeve, and the transition step to seal against the inner wall of the waterproof sealing sleeve, thereby forming a limiting and sealing structure. The inner wall of the waterproof sealing sleeve is coated with a silicone coating, which enables flexible fitting during the pressing process to reduce gaps and improve the sealing reliability of the USB connector. The waterproof sealing sleeve has snap-fit ​​arms on both sides, which are locked to the positioning protrusions on the inner wall of the second housing through positioning grooves, improving the assembly structure stability of the waterproof sealing sleeve, effectively preventing loosening, and simplifying the assembly operation, thereby improving the assembly production efficiency of the USB connector. Attached Figure Description

[0021] 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.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the first shell structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the male connector structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the second shell structure of this utility model. Detailed Implementation

[0028] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 5 As shown, this embodiment provides a high-waterproof USB connector, including a first housing 1, a second housing 2, a male connector 3, and a waterproof sealing sleeve 4. The male connector 3 includes a plug portion 31 and a rear plug portion 32 located at the rear end of the plug portion 31. A transition step 33 is formed between the plug portion 31 and the rear plug portion 32. The first housing 1 has a first chamber 11, and the plug portion 31 is located in the first chamber 11. The second housing 2 has a second chamber 21, and the rear plug portion 32 is located in the second chamber 21. The waterproof sealing sleeve 4 has a U-shaped structure, and its middle part has a U-shaped structure. The snap-fit ​​groove and the transition step 33 are used to seal against the inner wall of the waterproof sealing sleeve 4 when the plug part 31 passes through the snap-fit ​​groove. When the male connector 3 is installed, the plug part 31 passes through the snap-fit ​​groove in the middle of the waterproof sealing sleeve 4 and is fitted into the first chamber 11 of the first housing 1. At this time, the transition step 33 is tightly against the inner wall of the waterproof sealing sleeve 4, which not only forms a limiting structure, but also makes the waterproof sealing sleeve 4 compacted, thereby achieving effective sealing. Even in a high humidity environment, it can effectively prevent external moisture from penetrating into the connector, thereby improving the waterproof rating and long-term reliability of the USB connector.

[0032] The inner wall surface of the waterproof sealing sleeve 4 that abuts against the transition step 33 is coated with a silicone coating. This design allows the contact surface to flexibly fit under pressure, thereby effectively filling the gap between the waterproof sealing sleeve 4 and the transition step 33, forming a tighter sealing interface, and thus improving the waterproof sealing effect of the USB connector.

[0033] like Figure 1 and Figure 5As shown, the waterproof sealing sleeve 4 has vertically extending snap-fit ​​arms 41 on both sides towards the second housing 2. Each snap-fit ​​arm 41 has a positioning groove 410, and each of the two inner sidewalls of the second housing 2 has a positioning protrusion 22. The positioning protrusions 22 are used to engage with the positioning grooves 410 via a snap-fit ​​connection. During assembly of the USB connector, the snap-fit ​​arms 41 can fit against the inner wall of the second housing 2. At this time, the positioning grooves 410 align with the positioning protrusions 22 snapped onto the inner wall of the second housing 2, thereby achieving a snap-fit ​​lock. This effectively improves the assembly structure stability of the waterproof sealing sleeve 4 and enhances assembly efficiency.

[0034] Furthermore, the waterproof sealing sleeve 4 is made of TPU material. TPU material has good mechanical strength and resilience, and can withstand insertion force and structural clamping force without permanent deformation during assembly. At the same time, it has a certain degree of flexibility, which can achieve flexible fit when it abuts against the transition step 33, thereby improving the sealing effect.

[0035] like Figure 1 As shown, the first housing 1 further comprises a U-shaped structure, including a protruding portion 12 and a base portion 13, with a transition arc structure 14 between the protruding portion 12 and the base portion 13. Since the waterproof sealing sleeve 4 has a U-shaped structure, the transition arc structure 14 ensures a stable fit between the arc edges of the first housing 1 and the waterproof sealing sleeve 4, thereby improving the waterproof performance between them.

[0036] like Figure 4 and Figure 5 As shown, furthermore, the upper and lower walls of the rear plug portion 32 are respectively provided with protruding structures 321, and the upper and lower inner walls of the first housing 1 and the second housing 2 are respectively provided with protruding arc grooves 23 that are adapted to the protruding structures 321. During assembly, the protruding structures 321 on the rear plug portion 32 can be embedded into the arc groove structures on the inner walls of the first housing 1 and the second housing 2 to form a tenon-and-mortise positioning fit. This setting can improve the assembly structural stability of the connector male head 3 and prevent the connector male head 3 from structurally shifting.

[0037] like Figure 2 As shown, the base portion 13 of the first housing 1 is further connected to the second housing 2 by ultrasonic welding. With this configuration, the contact surface between the base portion 13 and the second housing 2 can be locally melted by high-frequency vibration and then rapidly cooled and solidified to form a strong welded interface, thereby improving the overall structural strength and sealing performance.

[0038] like Figure 2 As shown, the second housing 2 further has an arc-shaped structure 24 that is wider at the front and narrower at the back. The arc-shaped structure 24 makes it easier for people to hold the USB connector when plugging and unplugging it.

[0039] like Figure 2 As shown, furthermore, the rear end of the second housing 2 is provided with a wire gathering hole 25 to facilitate the passage of the wire harness. By setting the wire gathering hole 25 at the rear end of the second housing 2, together with the rubber sheath and the wire clamping ring, a tail sealing structure is formed, which can block moisture or dust from entering the interior of the second housing 2 from the tail gap to a certain extent, thereby improving the overall waterproof performance.

[0040] Furthermore, the wall thickness of the waterproof sealing sleeve 4 is 4-6mm. In this embodiment, the wall thickness of the waterproof sealing sleeve 4 is 5mm. This setting can provide sufficient support while also forming a tight contact interface between the waterproof sealing sleeve 4 and the transition step 33, thereby effectively improving the sealing performance of the connector.

[0041] This invention allows the male connector's insertion portion to pass through the snap-fit ​​groove in the middle of the waterproof sealing sleeve, and the transition step to seal against the inner wall of the waterproof sealing sleeve, thereby forming a limiting and sealing structure. The inner wall of the waterproof sealing sleeve is coated with a silicone coating, which enables flexible fitting during the pressing process to reduce gaps and improve the sealing reliability of the USB connector. The waterproof sealing sleeve has snap-fit ​​arms on both sides, which are locked to the positioning protrusions on the inner wall of the second housing through positioning grooves, improving the assembly structure stability of the waterproof sealing sleeve, effectively preventing loosening, and simplifying the assembly operation, thereby improving the assembly production efficiency of the USB connector.

[0042] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A USB connector with high waterproofing level, characterized in that: The application relates to a waterproof connector, which comprises a first shell, a second shell, a connector male head and a waterproof sealing sleeve. The connector male head comprises a plug-in part and a rear plug part located at the rear end of the plug-in part, and a transition step is formed between the plug-in part and the rear plug part. The first shell is internally provided with a first cavity, the plug-in part is located in the first cavity, the second shell is internally provided with a second cavity, and the rear plug part is located in the second cavity. The waterproof sealing sleeve is in an H-shaped structure, and a clamping groove is arranged in the middle of the waterproof sealing sleeve, the transition step is used for sealingly abutting against the inner wall of the waterproof sealing sleeve when the plug-in part passes through the clamping groove. A silica gel coating is coated on the inner wall surface of the waterproof sealing sleeve abutting against the transition step. Clamping arms vertically extending towards the second shell are arranged on the two sides of the waterproof sealing sleeve, positioning grooves are arranged on the clamping arms, positioning protrusions are respectively arranged on the two inner side walls of the second shell, and the positioning protrusions are used for being connected with the positioning grooves through buckling.

2. The high waterproof rating USB connector of claim 1, wherein: The waterproof sealing sleeve is made of TPU material.

3. The high waterproof rated USB connector of claim 1, wherein: The first shell is in a convex H-shaped structure, and comprises a convex part and a bottom platform part, and a transition arc structure is arranged between the convex part and the bottom platform part.

4. The high waterproofing grade USB connector of claim 3, wherein: Protruding structures are respectively arranged on the upper and lower walls of the rear plug part, and protruding arc grooves matched with the protruding structures are respectively arranged on the upper and lower inner walls of the first shell and the second shell.

5. The high waterproof rated USB connector of claim 4, wherein: The bottom platform part of the first shell is connected with the second shell through ultrasonic welding.

6. The high waterproof rating USB connector of claim 5, wherein: The second shell is in an arc-shaped structure with a wide front and a narrow rear.

7. The high waterproof rating USB connector of claim 6, wherein: A wire collecting hole for facilitating wire harness to pass through is arranged at the rear end of the second shell.

8. The high waterproof rated USB connector of claim 1, wherein: The wall thickness of the waterproof sealing sleeve is 4-6 mm.

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