Double-port USB interface structure
By designing a dual-port USB interface structure and employing limit guide components and labyrinth sealing technology, the problems of single-function and low sealing performance of USB interfaces have been solved, thereby improving functionality and practicality as well as extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANDE FENGSHUN ELECTRIC CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-12
AI Technical Summary
The existing USB interface structure has limited functionality, poor practicality, and low sealing performance, which affects its lifespan.
Design a dual-port USB interface structure, including a shell, back cover, top cover assembly, limiting guide assembly and PCB board, adopting Type-A and Type-C interfaces. The positioning assembly and labyrinth sealing of the interface are achieved through the limiting guide assembly and sealing block, which enhances the sealing performance and functionality.
It features dual AC port connectivity, enhances the functionality and practicality of the USB interface, has a structure that facilitates assembly and disassembly, extends its service life, and improves dust and water resistance.
Smart Images

Figure CN224232964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of USB connectors, and in particular to a dual-port USB interface structure. Background Technology
[0002] In today's life, there are more and more electronic products, which also leads to a corresponding increase in USB connectors. USB connectors support the plug-and-play function of devices and are used to connect two devices for communication. As one of the most important connectors in computer connectors, the USB connector is used very frequently. Therefore, peripherals are plugged and unplugged on this connector very frequently. The USB interface structure needs to be stably assembled on the device's interface and electrically connected to the device's output signal source for information transmission.
[0003] Chinese Patent Publication No.: CN 218648199 U, Publication Date: March 17, 2023. This utility model proposes a detachable USB connector, including a shell, a connector body, and a back cover. The shell has a placement groove, and the connector body is placed in the placement groove. The bottom surface of the connector body is connected to the bottom surface of the placement groove. The back cover is placed on top of the connector body and connected to the connector body. The upper end of the placement groove has an output port, and the lower end of the placement groove has an input port. The connector body includes an output end and an input end, with the output end connected to the input end, the input port corresponding to the input end, and the output port corresponding to the output end. The shortcomings of this technical solution are: 1. The interface type is limited, resulting in poor functionality and practicality; 2. The flat, sealed interface easily leads to low dust and water resistance, affecting the service life of the interface.
[0004] In summary, the USB interface structure suffers from drawbacks such as limited functionality, poor practicality, and low sealing. Utility Model Content
[0005] This invention aims to overcome the shortcomings of existing USB interface structures, such as limited functionality, poor practicality, and low sealing, and provides a dual-port USB interface structure that enhances functionality, practicality, sealing, and extends service life.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A dual-port USB interface structure includes a housing; a rear cover detachably connected to the housing; a top cover assembly sealed to the housing; a limiting guide assembly connected to the housing, the top cover assembly having a sealing block embedded in it, the top cover assembly being detachably connected to the limiting guide assembly, the limiting guide assembly having an output port one and an output port two, and the housing having an input port; a connector socket body housed within the housing, the connector socket body including a Type-A interface and a Type-C interface, the Type-A interface being connected to output port one, and the Type-C interface being connected to output port two; a fastener connected to the top cover assembly, and the fastener being movably connected to the Type-A interface; and a PCB board connected to the housing, the connector socket body being electrically connected to the PCB board.
[0008] The housing and back cover form the main body of the interface structure. The back cover is detachable, facilitating the installation and removal of electronic components within the housing for easy assembly and subsequent maintenance. A limiting guide assembly is connected to an opening at one end of the housing to position the interface via output ports one and two. This ensures that the Type-A interface in the connector body is installed at output port one and the Type-C interface at output port two, thus achieving the positioning and assembly of the Type-A and Type-C interfaces. The input port is located on the housing for connecting external devices. The input port, Type-A interface, and Type-C interface are all electrically connected to the PCB board to control electrical signal transmission, realizing an integrated AC dual-port interface to improve the practicality of the interface structure and enhance USB functionality. The top cover assembly seals the limiting guide assembly through a sealing connection. The sealing block, embedded in the limiting guide assembly, further seals output ports one and two, forming a labyrinth seal through the embedded structure. This further enhances the sealing performance and provides dust and water protection for the AC interface. Fasteners are connected to the top cover assembly, strengthening the connection in the sealed state and preventing easy opening that could reduce the protection strength. It achieves the effects of enabling dual AC port connection to enhance USB functionality and practicality, facilitating assembly, disassembly and maintenance, and providing high-strength sealing for effective interface protection, thereby extending service life.
[0009] Preferably, one end of the housing has a mounting port. The limiting guide assembly includes a limiting seat, which is connected to the mounting port. Output ports one and two are placed on the limiting seat. The Type-A interface is plugged into output port one, and the Type-C interface is plugged into output port two. The wall of output port one has a guide groove, and the Type-A interface is embedded in the guide groove. The bottom of the guide groove is inclined and serves as a guide slope. The Type-A interface is slidably connected to the guide slope. The limiting seat in the limiting guide assembly is connected to the housing through the mounting port. The area of the limiting seat is larger than the diameter of the mounting port, so that the mounting plate is connected to the housing and protrudes from the housing. When installing the USB interface on the device, the connector body is exposed on the outside when the installation position is limited, making it easy to plug and unplug. The Type-A interface and the Type-C interface are connected to one end of the PCB board and placed in output port one and output port two respectively. When the Type-A interface is connected, it is guided into the guide groove by the guide slope and then quickly limited and assembled in output port one, so as to facilitate the positioning and installation of the connector body. This achieves the effect of enabling quick plugging and unplugging of dual ports, improving structural assembly efficiency and stability.
[0010] Preferably, the limiting and guiding assembly includes a limiting block connected to the housing. The limiting block has a limiting groove, the upper end of the PCB board abuts against the limiting seat, and the lower end of the PCB board is arranged opposite to the limiting groove. A support strip is connected to the rear cover, and the support strip abuts against the lower end of the Type-C interface. The Type-C and Type-A interfaces are fixedly connected to both sides of the PCB board, so that after the Type-C and Type-A interfaces are inserted, the PCB board rests against the limiting seat between the Type-C and Type-A interfaces, thereby limiting the PCB board and preventing it from shaking on both sides. The lower end of the PCB board in the assembly connector socket body is supported by the limiting groove of the limiting block, preventing the PCB board from shifting. This allows the PCB board to be stably abutted against the limiting seat when the Type-C interface is inserted. When the rear cover is connected to the housing, it abuts against the lower end of the Type-A interface through the support strip, thereby limiting and preventing vertical displacement. This achieves the effect of guiding and positioning assembly and improving assembly stability, thereby enhancing the stability of insertion and removal operations.
[0011] Preferably, the housing has a fixed insertion port and a positioning groove, and the rear cover is connected with a fixed buckle and a positioning block. The fixed buckle engages with the fixed insertion port, and the positioning block engages with the positioning groove. One side of the housing is open to facilitate the insertion of the connector insertion body. The rear cover connects to the opening of the housing, and the connection is secured by the fixed buckle engaging with the fixed insertion port. The engagement of the positioning block and the positioning groove ensures the connection accuracy of the positioning structure, prevents misalignment between the structures, and facilitates later disassembly and maintenance. This achieves the effect of improving the connection stability between the rear cover and the housing and facilitating later maintenance.
[0012] Preferably, the top cover assembly includes a mounting plate, a sealing plate, and a connecting strip. One end of the connecting strip connects to the mounting plate, and the other end connects to the sealing plate. The mounting plate has a snap-fit mechanism, which allows it to be fitted onto the housing. The mounting plate also abuts against the lower end face of the limiting seat. The top cover assembly is made of soft rubber material. The mounting plate in the top cover assembly is fitted onto the housing via the snap-fit mechanism and is limited by the limiting seat, enabling quick assembly, maintenance, and replacement of the top cover assembly. The sealing plate, connected by the connecting strip, can be freely bent to allow for movable sealing and opening of the limiting guide assembly, thereby achieving dustproof and waterproof sealing and quick opening of the Type-A and Type-C interfaces, enabling rapid insertion and removal. This achieves the effects of improving the connection stability between structures, facilitating the assembly, maintenance, and replacement of the top cover assembly, and improving the waterproof and dustproof performance of the interfaces.
[0013] Preferably, the side of the limiting seat has an outer stepped groove, and the connecting piece engages with the outer stepped groove. The sealing block and the sealing rubber plate are connected as a single unit, and fasteners are connected to the sealing block. The upper surface of the limiting seat has a recessed groove, and output port one and output port two are placed on the recessed groove. The recessed groove is adapted to the structural shape of the sealing block. The sealing block is connected to the sealing rubber plate and is a single molded structure. The side of the limiting seat is recessed inward to form an annular stepped outer stepped groove, allowing the connecting piece to engage with the outer stepped groove during sealing, thereby improving the tightness of the connection between the top cover assembly and the limiting seat. The sealing block, connected to the sealing rubber plate, embeds into the recessed groove of the limiting seat during sealing, thereby tightly sealing input port one and input port two. This achieves the effect of improving the assembly stability between structures and enhancing the sealing performance of the USB interface.
[0014] Preferably, the sealing sheet has an installation groove, and the sealing block connects to the installation groove. A gap is left between the sealing block and the groove wall, forming a sealing recess. The sealing recess is adapted to the structure of the limiting seat, and several sealing rings are connected to the groove wall. The sealing rings and the sealing sheet are an integral structure. The sealing block is connected at the center of the installation groove of the sealing sheet, so that the sealing block and the sealing sheet are connected by embedding into the limiting seat through the reserved sealing recess, further improving the structural compactness. At the same time, the fit between the sealing recess and the limiting seat forms a labyrinth seal effect, and the sealing rings press against the surface of the limiting seat, further enhancing the sealing performance. This achieves the effect of improving the tightness and compactness of the structural assembly and enhancing waterproof and dustproof sealing performance.
[0015] Preferably, the housing is connected to several limiting plates, and the side of the PCB board has a slot, through which the PCB board engages with the limiting plates. During PCB board assembly, the cooperation between the slot and the limiting plates ensures that the PCB board is limited during assembly and provides stable support after assembly, thereby improving assembly efficiency and stability.
[0016] The beneficial effects of this utility model are: it enables dual AC port connection, enhancing USB functionality and practicality; the structure facilitates assembly, disassembly, and maintenance; the high-strength seal provides high protection for the interface, thereby extending its service life; it enables guided positioning assembly, improving structural assembly efficiency and stability; and it enhances the tightness and compactness of structural assembly. Attached Figure Description
[0017] Figure 1 This is a perspective view of the utility model;
[0018] Figure 2 yes Figure 1 Exploded view;
[0019] Figure 3 yes Figure 1 Exploded view;
[0020] Figure 4 yes Figure 1 A sectional view.
[0021] In the diagram: 1. Housing, 2. Back cover, 3. Output port one, 4. Output port two, 5. Input port, 6. Type-A interface, 7. Type-C interface, 8. Fastener, 9. PCB board, 10. Limiting seat, 11. Guide groove, 12. Guide slope, 13. Limiting block, 14. Support bar, 15. Fixing socket, 16. Positioning groove, 17. Fixing buckle, 18. Positioning block, 19. Mounting plate, 20. Sealing adhesive plate, 21. Connecting film, 22. Bayonet, 23. Outer stepped groove, 24. Sealing block, 25. Recessed groove, 26. Mounting groove, 27. Sealing groove, 28. Sealing ring, 29. Limiting plate, 30. Slot, 31. Connection port, 32. Mounting wing plate. Detailed Implementation
[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.
[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.
[0026] Example 1:
[0027] like Figure 1 , 3As shown in Figure 4, a dual-port USB interface structure includes a housing 1; a rear cover 2, which is detachably connected to the housing 1; a top cover assembly, which is sealed to the housing 1; a limiting guide assembly, which is connected to the housing 1, and the top cover assembly is connected to a sealing block 24, which is embedded in the limiting guide assembly. The top cover assembly is detachably connected to the limiting guide assembly, and the limiting guide assembly has an output port 3 and an output port 4. The housing 1 has an input port 5; a connector socket body, which is placed inside the housing 1, and includes a Type-A interface 6 and a Type-C interface 7. The Type-A interface 6 is connected to the output port 3, and the Type-C interface 7 is connected to the output port 4; a fastener 8, which is connected to the top cover assembly and is movably connected to the Type-A interface 6; and a PCB board 9, which is connected to the housing 1, and the connector socket body is electrically connected to the PCB board 9.
[0028] like Figure 4 As shown, one end of the housing 1 is provided with an installation port. The limiting guide assembly includes a limiting seat 10, which is connected to the installation port. Output port 1 3 and output port 2 4 are placed on the limiting seat 10. The Type-A interface 6 is inserted into output port 1 3, and the Type-C interface 7 is inserted into output port 2 4. The wall of output port 1 3 is provided with a guide groove 11. The Type-A interface 6 is embedded in the guide groove 11. The bottom of the guide groove 11 is inclined and is set as a guide inclined surface 12. The Type-A interface 6 is slidably connected to the guide inclined surface 12.
[0029] like Figure 3 , 4 As shown, the limiting guide assembly includes a limiting block 13, which is connected to the housing 1. The limiting block 13 is provided with a limiting groove 26. The upper end of the PCB board 9 abuts against the limiting seat 10, and the lower end of the PCB board 9 is arranged opposite to the limiting groove 26. The rear cover 2 is connected to a support strip 14, which abuts against the lower end of the Type-C interface 7.
[0030] like Figure 1 , 2 As shown, the housing 1 is provided with a fixed insertion port 15 and a positioning groove 16, and the rear cover 2 is connected with a fixed buckle 17 and a positioning block 18. The fixed buckle 17 is engaged with the fixed insertion port 15, and the positioning block 18 is engaged with the positioning groove 16.
[0031] like Figure 2 , 3 As shown, the top cover assembly includes a mounting plate 19, a sealing plate 20, and a connecting piece 21. One end of the connecting piece 21 is connected to the mounting plate 19, and the other end of the connecting piece 21 is connected to the sealing plate 20. The mounting plate 19 is provided with a snap 22, and the mounting plate 19 is sleeved with the housing 1 through the snap 22. The mounting plate 19 is attached to the lower end face of the limiting seat 10.
[0032] like Figure 2-4 As shown, the side of the limiting seat 10 is provided with an outer stepped groove 23, the connecting soft sheet 21 is snapped into the outer stepped groove 23, the sealing block 24 is connected to the sealing rubber plate 20 as an integral structure, the fastener 8 is connected to the sealing block 24, the upper end face of the limiting seat 10 is provided with a recessed groove 25, the output port 1 3 and the output port 2 4 are placed on the recessed groove 25, and the shape of the recessed groove 25 is compatible with the structure of the sealing block 24.
[0033] like Figure 2 , 4 As shown, the sealing plate 20 is provided with an installation groove, the sealing block 24 is connected to the installation groove, and a gap is left between the sealing block 24 and the groove wall of the installation groove and is set as a sealing groove 27. The sealing groove 27 is adapted to the structure of the limiting seat 10. Several sealing rings 28 are connected to the groove wall of the sealing groove 27. The sealing rings 28 and the sealing plate 20 are an integral structure.
[0034] like Figure 3 As shown, the housing 1 is connected to several limiting plates 29, and the side of the PCB board 9 is provided with a slot 30. The PCB board 9 is engaged with the limiting plates 29 through the slot 30.
[0035] like Figure 1-4 As shown: The limiting block 12 is connected to the vertical surface of the lower inner wall of the shell 1 to achieve the effect of reinforcing ribs, thereby increasing the structural strength of the shell 1 and making it less prone to cracking.
[0036] The housing 1 is provided with a connection port 31, and the connection port 31 is connected to a mounting wing plate 32. The mounting wing plate 32 is connected to the interface reserved in the equipment (not shown in the figure).
[0037] In use: Pre-install USB housing 1 and back cover 2: Insert the PCB board 9 with Type-A interface 6 and Type-C interface 7 along the guide groove 11 and connect it to the limiting seat 10 of housing 1, so that Type-A interface 6 is placed in output port 3 and Type-C interface 7 is placed in output port 4. Overcome the stress and snap the fixing buckle 17 of back cover 2 into the fixing socket 15, and embed the positioning block 18 and the positioning groove 16. Install the top cover assembly: Insert the mounting plate 19 with sealing plate 20 through the connecting film 21 into the lower end of housing 1 and back cover 2 after connection through the bayonet 22, push it upward until the mounting plate 19 is in contact with the limiting seat 10, and snap the sealing plate 20 along the sealing groove 27 into the limiting seat 10 along the connecting film 21. At this time, the fastener 8 on the sealing plate 20 is inserted into the Type-A interface, and the sealing block 24 and the recessed groove 25 are pressed to completely seal output port 3 and output port 4, thus completing the assembly of the dual-port USB interface structure. The dual-port USB interface structure is installed by inserting it into the corresponding interface of the device (not shown in the figure). The input port 5 is electrically connected to the output signal source of the device (not shown in the figure) beforehand. The installation wing plate 32 is then connected to the corresponding interface to complete the installation of the dual-port USB interface structure and the device.
[0038] The above 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 dual-port USB interface structure, characterized in that, include Shell (1); Rear cover (2), which is detachably connected to the housing (1); Top cover assembly, which is sealed to the housing (1); The limiting guide assembly is connected to the housing (1), the top cover assembly is connected to a sealing block (24), the sealing block (24) is embedded with the limiting guide assembly, the top cover assembly is detachably connected to the limiting guide assembly, the limiting guide assembly is provided with an output port one (3) and an output port two (4), and the housing (1) is provided with an input port (5). The connector socket body is placed inside the housing (1). The connector socket body includes a Type-A interface (6) and a Type-C interface (7). The Type-A interface (6) is connected to output port one (3), and the Type-C interface (7) is connected to output port two (4). Fastener (8), which is connected to the top cover assembly and is movably connected to the Type-A interface (6); PCB board (9), the PCB board (9) is connected to the housing (1), and the connector socket body is electrically connected to the PCB board (9).
2. The dual-port USB interface structure according to claim 1, characterized in that, The housing (1) has an installation port at one end. The limiting guide assembly includes a limiting seat (10). The limiting seat (10) is connected to the installation port. The output port one (3) and output port two (4) are placed on the limiting seat (10). The Type-A interface (6) is plugged into the output port one (3). The Type-C interface (7) is plugged into the output port two (4). The wall of the output port one (3) is provided with a guide groove (11). The Type-A interface (6) is embedded in the guide groove (11). The bottom of the guide groove (11) is inclined and is set as a guide inclined surface (12). The Type-A interface (6) is slidably connected to the guide inclined surface (12).
3. The dual-port USB interface structure according to claim 2, characterized in that, The limiting guide assembly includes a limiting block (13), which is connected to the housing (1). The limiting block (13) is provided with a limiting groove (26). The upper end of the PCB board (9) abuts against the limiting seat (10), and the lower end of the PCB board (9) is arranged opposite to the limiting groove (26). The rear cover (2) is connected with a support strip (14), which abuts against the lower end of the Type-C interface (7).
4. A dual-port USB interface structure according to claim 1 or 3, characterized in that, The housing (1) is provided with a fixed socket (15) and a positioning groove (16). The rear cover (2) is connected with a fixed buckle (17) and a positioning block (18). The fixed buckle (17) is engaged with the fixed socket (15), and the positioning block (18) is engaged with the positioning groove (16).
5. A dual-port USB interface structure according to claim 2, characterized in that, The top cover assembly includes a mounting plate (19), a sealing plate (20), and a connecting piece (21). One end of the connecting piece (21) is connected to the mounting plate (19), and the other end of the connecting piece (21) is connected to the sealing plate (20). The mounting plate (19) is provided with a snap-fit (22). The mounting plate (19) is sleeved with the housing (1) through the snap-fit (22). The mounting plate (19) is attached to the lower end face of the limiting seat (10).
6. A dual-port USB interface structure according to claim 5, characterized in that, The side of the limiting seat (10) is provided with an outer stepped groove (23). The connecting soft sheet (21) is engaged with the outer stepped groove (23). The sealing block (24) is connected with the sealing rubber plate (20) as an integral structure. The fastener (8) is connected with the sealing block (24). The upper end face of the limiting seat (10) is provided with a recessed groove (25). The output port one (3) and the output port two (4) are placed on the recessed groove (25). The recessed groove (25) is adapted to the structural shape of the sealing block (24).
7. A dual-port USB interface structure according to claim 6, characterized in that, The sealing plate (20) is provided with an installation groove. The sealing block (24) is connected to the installation groove. A gap is left between the sealing block (24) and the groove wall of the installation groove and is set as a sealing groove (27). The sealing groove (27) is adapted to the structure of the limiting seat (10). Several sealing rings (28) are connected to the groove wall of the sealing groove (27). The sealing rings (28) and the sealing plate (20) are an integral structure.
8. A dual-port USB interface structure according to claim 1, characterized in that, The housing (1) is connected to several limiting plates (29), and the side of the PCB board (9) is provided with a slot (30). The PCB board (9) is engaged with the limiting plate (29) through the slot (30).