Reinforced protection type USB female port waterproof tool

Abstract

The utility model relates to the technical field of electric connection and protection, in particular to a reinforced protection type USB female port waterproof tool which comprises a connector, an inner mold, an outer mold and a nut. The connector has a USB female port standard interface specification and is electrically connected with the wire rod stably; the inner mold wraps a connecting area of the connector and the wire rod through an injection molding process; the outer mold is wrapped outside the inner mold through a secondary injection molding process; the nut is detachably installed at the end of the outer mold and used for protecting the connector. In addition, the tool is further provided with an anti-disengaging connecting piece, a rubber plug, an outer spiral ring, a water protection gasket, a positioning fixing groove and other structures, and the protection performance and reliability of the tool are further enhanced. The effects of effectively preventing water from invading, prolonging the service life of the tool and improving the technical stability are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electrical connection and protection, in particular to a reinforced protection type USB female port waterproof tool. BACKGROUND

[0002] USB2.0 interfaces are widely used in various electronic devices, especially in energy storage devices. With the development of technology, USB interfaces not only need to meet the basic data transmission function, but also gradually increase more safety and reliability requirements. The traditional USB interface design is usually single, lacking effective waterproof and protection measures, which can easily cause interface damage in outdoor environments, thereby affecting the normal operation of the entire device. Therefore, developing a USB interface with high-efficiency waterproof performance has become an important research topic.

[0003] To achieve waterproof function, the existing USB interface usually adopts the following schemes: one is to add a protective plate between the connector and the PCB board, and to apply AB glue at the joint to achieve sealing effect; two is to use a special waterproof sleeve or shell to cover the connector as a whole; three is to use a special rubber gasket or other sealing material to enhance the waterproof ability of the interface. Although these methods can improve the waterproof performance of the interface to some extent, there are still some shortcomings in actual application.

[0004] The main defect of the above-mentioned prior art scheme is that they often need multiple complex assembly processes, such as pasting a protective plate, applying glue, etc. These steps not only consume time and effort, but also need a long time to wait for the glue to fully cure, thereby greatly reducing the production efficiency. In addition, these methods are also prone to failure due to the influence of the external environment during use, such as glue aging, falling off, etc., resulting in unreliable waterproof effect. In view of these problems, it is necessary to develop a more simple and efficient waterproof tool scheme. SUMMARY

[0005] The application aims to provide a reinforced protection type USB female port waterproof tool.

[0006] The above technical purpose of the application is achieved by the following technical scheme: a reinforced protection type USB female port waterproof tool, comprising:

[0007] A connector having a USB female port standard interface specification and realizing stable electrical connection with a wire to ensure reliable transmission of signals and power;

[0008] An inner mold wrapping the connection area of the connector and the wire through an injection molding process;

[0009] An outer mold wrapped outside the inner mold through a secondary injection molding process;

[0010] A nut, which is detachably mounted on the end of the outer mold when the tooling is not in use, is used to protect the connector. The nut includes an internal thread that is adapted to the thread of the end of the outer mold and is tightly connected to the outer mold by screwing.

[0011] By adopting the above technical solution, the inner mold, through injection molding, wraps the connection area between the connector and the wire, achieving precise positioning and initial protection of this area. The injection molding process ensures a tight fit between the inner mold and the connection area, effectively preventing the initial intrusion of dust and moisture, and ensuring the stability of the connection. Secondly, the outer mold, using a secondary injection molding process, wraps around the inner mold, further enhancing the protection of the internal structure. The two-layer injection molding structure forms a double waterproof barrier, greatly improving the waterproof performance of the tooling and ensuring that the connector can work normally in humid environments. Furthermore, the detachable nut installed at the end of the outer mold provides additional protection for the connector when the tooling is not in use, preventing collisions or scratches from foreign objects. Simultaneously, the nut is tightly connected to the outer mold via threads; this connection method facilitates user operation and ensures a tight seal, further consolidating the waterproof effect of the tooling.

[0012] Optionally, it also includes an anti-detachment connector, one end of which is fitted onto the outer mold, and the nut is rotatably disposed at the end of the anti-detachment connector away from the outer mold.

[0013] By adopting the above technical solution, one end of the anti-detachment connector is fitted onto the outer mold, achieving a stable connection between itself and the outer mold, thus enhancing the overall stability of the tooling structure. The nut is rotated and positioned at the end of the anti-detachment connector furthest from the outer mold, cleverly solving the problem of the nut being easily lost. In daily use, when the user removes the nut, the anti-detachment connector prevents the nut from completely separating from the tooling, avoiding potential issues such as loss of the tooling's protective function and inability to properly seal and waterproof. Furthermore, this design facilitates user operation; users can more easily disassemble and install the nut without worrying about loss, improving usability and extending the tooling's lifespan to some extent, thus enhancing the overall practicality and user experience of the product.

[0014] Optionally, the nut is provided with a mounting groove, and a rubber plug is provided in the mounting groove. The end of the anti-detachment connector away from the outer mold is fitted onto the rubber plug.

[0015] By adopting the technical scheme, the installation groove is arranged on the nut and the rubber plug is placed in the installation groove, so that a stable and sealed installation base is provided for the end of the anti-disconnection piece away from the outer mold. The rubber plug has good elasticity, and when the anti-disconnection piece is sleeved on the rubber plug, the rubber plug can tightly fit the inner wall of the anti-disconnection piece, thereby enhancing the stability of the connection between the anti-disconnection piece and the nut, effectively preventing the nut and the anti-disconnection piece from being loose or separated during daily use, and ensuring the stability of the overall structure of the tool.

[0016] Optionally, the outer mold is provided with a boss, and an outer ring is threadedly connected to the outer mold, and the end of the anti-disconnection piece away from the nut is clamped and fixed by cooperation of the boss and the outer ring.

[0017] By adopting the technical scheme, the boss on the outer mold cooperates with the outer ring to precisely and firmly clamp and fix the end of the anti-disconnection piece away from the nut, thereby greatly enhancing the stability of the connection between the anti-disconnection piece and the outer mold, avoiding the anti-disconnection piece from being loose, shaking or even falling off during use, and ensuring the integrity and reliability of the overall tool structure. The cooperation of the boss and the outer ring is easy to operate, and can improve the assembly efficiency and reduce the production cost during the production and manufacturing process.

[0018] Optionally, a water protection washer is sleeved on the outer mold, and the end of the anti-disconnection piece cooperates with the boss to clamp the water protection washer.

[0019] By adopting the technical scheme, the water protection washer sleeved on the outer mold is clamped by the cooperation of the end of the anti-disconnection piece and the boss, thereby forming an effective waterproof barrier. The water protection washer itself has good sealing performance and will be elastically deformed after being clamped, tightly fitting the contact surfaces of the outer mold and the anti-disconnection piece, so as to prevent external water from penetrating into the tool from the connection part to the greatest extent, thereby greatly enhancing the overall waterproof capability of the tool and ensuring that the internal key components such as the connector are not eroded by water, and the stable transmission of signals and power is ensured. At the same time, the clamping and fixing of the water protection washer makes the installation of the washer more stable, and the washer is not easy to shift or fall off during use, thereby ensuring the durability and reliability of the waterproof effect. In addition, the design can also buffer the collision and friction between the anti-disconnection piece and the outer mold to some extent, reduce the wear of the components, prolong the service life of the tool, and improve the overall quality and stability of the product.

[0020] Optionally, the inner mold is provided with a plurality of positioning and fixing grooves.

[0021] By adopting the above technical scheme, the positioning and fixing groove can provide accurate positioning for the assembly of the inner mold and the outer mold or other components, ensuring that each component can be accurately and correctly installed to the predetermined position during the assembly process, effectively avoiding problems such as unstable structure or reduced waterproof performance caused by assembly deviation. At the same time, these positioning and fixing grooves can also enhance the connection stability between the inner mold and other components, making their combination more compact. When the tooling is subjected to external force impact or vibration, the inner mold is less likely to displace or loosen, thereby ensuring the integrity and reliability of the entire tooling structure. In addition, the provision of the positioning and fixing groove can also help improve production efficiency and simplify the assembly process, allowing workers to complete the assembly work more quickly and accurately, thereby reducing labor costs and production time.

[0022] Optionally, a plurality of anti-skid protrusions are arranged on the nut, and the anti-skid protrusions are uniformly distributed on the outer circumferential surface of the nut.

[0023] By adopting the above technical scheme, the design of the anti-skid protrusions significantly increases the friction force of the nut surface. When the user needs to screw the nut for installation or disassembly operation, the contact friction force between the hand and the nut is greatly increased, effectively avoiding the situation of hand slipping during operation, making the operation more smooth and stable. This not only improves the convenience of user operation and reduces the difficulty of operation, but also allows the user to more accurately and efficiently control the screwing force and angle of the nut, ensuring that the nut and the outer mold are tightly connected, thereby improving the overall sealing and waterproof performance of the tooling. In addition, the provision of the anti-skid protrusions also enhances the durability of the nut to some extent, reduces surface wear caused by frequent operation, and prolongs the service life of the nut.

[0024] Optionally, a waterproof pad is arranged in the nut.

[0025] By adopting the above technical scheme, the waterproof pad can fill the small gap that may exist when the nut is connected with the end of the outer mold, effectively preventing external water vapor, dust and other impurities from entering the inside of the tooling, greatly enhancing the waterproof and dustproof performance of the tooling, protecting the stable and reliable working environment of the internal connector, and ensuring the stable transmission of signals and power when the connector is in use. Moreover, the waterproof pad has a certain elasticity and can play a buffering role during the screwing process of the nut, reducing the rigid collision and friction between the nut and the outer mold, reducing component wear, and prolonging the service life of the tooling. In addition, this design improves the overall sealing of the tooling, so that the tooling can maintain good protection performance in different use environments, improves the quality and reliability of the product, and enhances the user experience.

[0026] In summary, the present application at least has the following beneficial effects:

[0027] 1. The connector is provided with multi-layer waterproof design. The inner mold is wrapped around the connector and the wire connection area by injection molding. The outer mold is further protected by secondary injection molding. The nut blocks the gap at the end of the outer mold. The multiple protections effectively block the intrusion of water vapor, ensuring the normal operation of the connector.

[0028] 2. The positioning and fixing groove of the inner mold realizes accurate positioning and stable installation. The boss and outer ring of the outer mold cooperate to clamp and fix the anti-disconnection connector. The anti-disconnection connector connects the nut and the outer mold to prevent the nut from being lost. The components are tightly connected and can withstand external impact and vibration, ensuring the integrity of the overall structure of the tool. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a structural diagram of a reinforced protection type USB female waterproof tool;

[0030] Fig. 2 is a structural diagram of a nut;

[0031] Fig. 3 is a structural diagram of an inner mold.

[0032] REFERENCE NUMERALS

[0033] 1, connector; 2, wire; 3, inner mold; 4, outer mold; 5, nut; 6, anti-disconnection connector; 7, installation groove; 8, rubber plug; 9, boss; 10, outer ring; 11, water protection washer; 12, positioning and fixing groove; 13, anti-slip convex rib. DETAILED DESCRIPTION

[0034] The application will be further described in detail below with reference to the accompanying drawings.

[0035] In this embodiment, refer to Figs. 1-3 A reinforced protection type USB female waterproof tool includes a connector 1, which has a USB female standard interface specification and is stably electrically connected with a wire 2 to ensure reliable transmission of signals and power. An inner mold 3 wraps the connection area of the connector 1 and the wire 2 by injection molding process. An outer mold 4 is wrapped outside the inner mold 3 by secondary injection molding process. A nut 5 is detachably installed at the end of the outer mold 4 when the tool is not in use to protect the connector 1. The nut 5 includes an inner thread that is adapted to the thread of the end of the outer mold 4 and is tightly connected with the outer mold 4 by screwing. This scheme solves the problems of complex assembly and low efficiency of USB interface in the prior art, simplifies the assembly process, and improves the waterproof performance and service life of the product.

[0036] Specifically, the connector 1 has a USB female standard interface specification and realizes stable electrical connection with the wire 2 to ensure reliable transmission of signals and power. The connector 1 can be made of metal or plastic materials, such as copper alloy, aluminum alloy, etc. These materials have good electrical conductivity and corrosion resistance. The connector 1 can also be provided with multiple contacts to ensure the stability of the electrical connection.

[0037] The inner mold 3 wraps the connection area of the connector 1 and the wire 2 through an injection molding process. The inner mold 3 can be made of engineering plastics with good fluidity, such as polycarbonate (PC) and polyamide (PA), which have excellent mechanical strength and thermal stability. The design of the inner mold 3 can be precisely controlled by the mold to ensure the accuracy and consistency of the internal structure. The inner mold 3 is provided with a plurality of positioning grooves 12, which can effectively prevent the inner mold 3 from shifting during injection or installation, ensuring the quality of the finished product.

[0038] The outer mold 4 is wrapped outside the inner mold 3 through a secondary injection molding process. The outer mold 4 can also use similar engineering plastics, but to improve its wear resistance and impact resistance, it can choose higher strength materials such as modified nylon (PA66-GF30). The design of the outer mold 4 can be adjusted according to actual needs, for example, adding anti-slip textures or logo patterns to facilitate user identification and use.

[0039] The screw cap 5 is detachably installed at the end of the outer mold 4 when the tool is not in use, and is used to protect the connector 1. The screw cap 5 includes an internal thread that matches the thread of the end of the outer mold 4, and is tightly connected by screwing. The material of the screw cap 5 can be stainless steel or zinc alloy, which has excellent corrosion resistance and durability. The screw cap 5 is provided with a plurality of anti-slip ribs 13, which are evenly distributed on the outer circumferential surface of the screw cap 5. These ribs not only increase the friction force, making it easy to manually tighten, but also improve the aesthetics.

[0040] In addition, the screw cap 5 is provided with a waterproof pad, which is usually made of silicone or nitrile rubber, and has good elasticity and sealing performance. When the screw cap 5 is tightened, the waterproof pad tightly adheres to the end face of the outer mold 4, forming a reliable waterproof barrier.

[0041] The implementation principle of the embodiment is that the connection area of the connector 1 and the wire 2 is wrapped in the inner mold 3 through an injection molding process, and then an outer mold 4 is formed through a secondary injection molding process. This not only simplifies the assembly process and reduces the multiple steps in the traditional method, but also improves the overall consistency and quality of the product. The addition of the screw cap 5 further enhances the protection performance of the product, especially the waterproof performance, making it suitable for outdoor harsh environments and prolonging the service life. The entire design scheme is simple and efficient, easy to mass-produce, and significantly improves the market competitiveness of the product.

[0042] The difference between this embodiment and the above-mentioned embodiments is that, in addition to the basic structure, it also includes a anti-loose connector 6. This design aims to prevent the accidental falling of the screw cap 5, improving the safety of use.

[0043] Specifically, one end of the anti-loose connector 6 is sleeved on the outer mold 4, and the other end is provided with a rotating shaft, so that the screw cap 5 can freely rotate within a certain range. The material of the anti-loose connector 6 can be high-strength engineering plastic, metal or plastic, such as POM, stainless steel or rubber, which has good toughness and wear resistance. The design of the anti-loose connector 6 can be flexible and diverse, for example, a buckle or a pin is provided at one end, which cooperates with the groove on the outer mold 4 to ensure the firmness of the connection.

[0044] The screw cap 5 is provided with a mounting groove 7, and a rubber plug 8 is arranged in the mounting groove 7. The end of the anti-loose connector 6 away from the outer mold 4 is sleeved on the rubber plug 8. The rubber plug 8 is usually made of soft materials such as TPU or EVA foam, which has good buffering and shock-absorbing effect, and can reduce the risk of loosening of the screw cap 5 when it is vibrated or impacted. The shape of the rubber plug 8 can be designed as a circle or a polygon to adapt to different installation needs.

[0045] The outer mold 4 is provided with a boss 9, and an outer ring 10 is threadedly connected on the outer mold 4. The end of the anti-loose connector 6 away from the screw cap 5 is clamped and fixed by the boss 9 and the outer ring 10. The height and width of the boss 9 can be adjusted according to actual needs to ensure the stability of the anti-loose connector 6. The material of the outer ring 10 can be stainless steel or galvanized steel, which has high strength and corrosion resistance.

[0046] A water protection washer 11 is sleeved on the outer mold 4, and one end of the anti-loose connector 6 cooperates with the boss 9 to clamp the water protection washer 11. The water protection washer 11 is usually made of fluororubber or EPDM material, which has excellent weather resistance and chemical stability, and can maintain good sealing performance even in high temperature and high humidity environment. The thickness and diameter of the water protection washer 11 can be selected according to the actual application needs to ensure the best waterproof effect.

[0047] The implementation principle of this embodiment is that by introducing the anti-loose connector 6, the risk of accidental falling of the screw cap 5 during use is effectively prevented, especially in outdoor environment, this design is particularly important. The ingenious combination of the anti-loose connector 6 with the outer mold 4 and the screw cap 5 not only ensures the reliability of the connection, but also does not affect the normal operation of the screw cap 5. At the same time, the addition of the water protection washer 11 further enhances the waterproof performance, so that the product still performs well in extreme weather conditions. The overall design is compact and reasonable, with functionality and aesthetics, greatly improving the user experience.

[0048] The difference between this embodiment and the above embodiments is that a boss 9 and an external thread 10 are added to the outer mold 4, further strengthening the fixing effect of the anti-disconnection connector 6, and optimizing the waterproof performance of the product.

[0049] Specifically, the outer mold 4 is provided with a boss 9, and the outer mold 4 is provided with an external thread 10 connected by threads. The boss 9 and the external thread 10 cooperate to clampingly fix one end of the anti-disconnection connector 6 away from the nut 5. The height and width of the boss 9 can be adjusted according to actual needs to ensure the stability of the anti-disconnection connector 6. The material of the external thread 10 can be stainless steel or galvanized steel, which has high strength and corrosion resistance.

[0050] The implementation principle of this embodiment is that by adding a boss 9 and an external thread 10 to the outer mold 4, the fixing effect of the anti-disconnection connector 6 is further strengthened, and the stability and reliability of the nut 5 during use are ensured. At the same time, the addition of the waterproof washer 11 not only improves the waterproof performance, but also improves the shock resistance and durability of the product to a certain extent. The overall design is scientific and reasonable, taking into account functionality and economy, and is suitable for various complex outdoor application scenarios.

[0051] Embodiment 4, the difference between this embodiment and the above embodiments is that the structure of the inner mold 3 is innovatively designed, and a labyrinth type waterproof structure is adopted to further improve the waterproof performance.

[0052] Specifically, the outer surface of the inner mold 3 is provided with a plurality of grooves, which are interlaced with each other to form a labyrinth-like path. When water tries to penetrate from the gap between the inner mold 3 and the outer mold 4, the labyrinth structure increases the difficulty and path length of water penetration. After entering the labyrinth, the water changes its flow direction constantly and forms multiple blockages and buffers between the annular protrusions and the grooves. In addition, the grooves of the labyrinth structure are filled with water-absorbing materials such as sponges. When a small amount of water enters the grooves, the sponge will quickly absorb the water to prevent further penetration of water. This water-absorbing material also has a certain swelling property, which will swell after absorbing water, further filling the grooves, enhancing the sealing effect, and increasing the installation stability between the inner mold 3 and the outer mold 4.

[0053] The implementation principle of this embodiment is that by increasing the path and resistance of water penetration through the labyrinth structure, combined with the water absorption and swelling properties of the water-absorbing material, the water intrusion is effectively prevented, the waterproof performance of the tooling is improved, and the connector 1 and the wire 2 are protected from water damage.

[0054] Embodiment 5, this embodiment optimizes the structure of the outer mold 4 and designs a flow guide fin structure to enhance the drainage and heat dissipation performance of the outer mold 4.

[0055] Specifically, the outer surface of the outer mold 4 is provided with a plurality of flow guide fins, which are uniformly distributed along the axial direction of the outer mold 4 and have a certain inclination angle. The shape of the flow guide fin is triangular, with the bottom connected to the surface of the outer mold 4 and the top gradually tapered. When the surface of the outer mold 4 has moisture, the flow guide fin can guide the moisture to flow down quickly. The inclined fin structure makes it easier for the moisture to flow along the surface of the fin under the action of gravity, thereby accelerating the drainage process. At the same time, the flow guide fin also increases the heat dissipation area of the outer mold 4. During the working process of the tooling, the heat generated can be transferred to the flow guide fin on the outer mold 4 and then dissipated to the surrounding environment. In addition, the surface of the flow guide fin is specially treated and has a certain hydrophobicity. This hydrophobic surface can make the water slide down more quickly, reduce the residence time of the water on the surface of the outer mold 4, and further improve the drainage effect.

[0056] The implementation principle of the embodiment is: through the structural design of the flow guide fin, the rapid drainage and heat dissipation functions of the outer mold 4 are realized. The flow guide fin guides the flow of water, increases the heat dissipation area, and uses the hydrophobic surface characteristics to improve the performance and reliability of the tooling in a humid and high-temperature environment.

[0057] The embodiments of the specific implementation are preferred embodiments of the present application, but do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A reinforced protective waterproof tooling for a USB female port, characterized in that, include: Connector (1), which has a standard USB female interface and achieves a stable electrical connection with the cable (2) to ensure reliable transmission of signals and power; The inner mold (3) wraps the connection area between the connector (1) and the wire (2) through injection molding process; The outer mold (4) is wrapped around the inner mold (3) by a secondary injection molding process; Nut (5), which is detachably installed on the end of the outer mold (4) when the tooling is not in use, is used to protect the connector (1). The nut (5) includes an internal thread that is adapted to the thread of the end of the outer mold (4) and is tightly connected to the outer mold (4) by screwing.

2. The reinforced protective waterproof tooling for a USB female port according to claim 1, characterized in that, It also includes an anti-detachment connector (6), one end of which is fitted onto the outer mold (4), and the nut (5) is rotatably disposed at the end of the anti-detachment connector (6) away from the outer mold (4).

3. The reinforced protective waterproof fixture for a female USB port according to claim 2, characterized in that, The nut (5) is provided with an installation groove (7), and a rubber plug (8) is provided in the installation groove (7). The end of the anti-detachment connector (6) away from the outer mold (4) is fitted onto the rubber plug (8).

4. The reinforced protective waterproof fixture for a female USB port according to claim 2, characterized in that, The outer mold (4) is provided with a boss (9), and the outer mold (4) is threaded with an outer threaded ring (10). The boss (9) and the outer threaded ring (10) cooperate to clamp and fix the anti-detachment connector (6) away from the nut (5).

5. The reinforced protective waterproof fixture for a female USB port according to claim 4, characterized in that, The outer mold (4) is fitted with a water-protecting gasket (11), and one end of the anti-detachment connector (6) is engaged with the boss (9) to clamp the water-protecting gasket (11).

6. The reinforced protective waterproof fixture for a female USB port according to claim 1, characterized in that, The inner mold (3) is provided with several positioning and fixing grooves (12).

7. The reinforced protective waterproof fixture for a female USB port according to claim 1, characterized in that, The nut (5) is provided with multiple anti-slip ridges (13), which are evenly distributed on the outer circumferential surface of the nut (5).

8. The reinforced protective waterproof fixture for a female USB port according to claim 1, characterized in that, The nut (5) has a waterproof gasket inside.

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