Multi-interface adapter

Abstract

This utility model discloses a multi-interface adapter, including a housing; a power interface disposed on the housing along a first direction, used to connect an external power adapter to receive external power supply; a signal interface disposed on the housing along a second direction, used to connect a mobile storage device, supporting data transmission with the mobile storage device and providing power output; and a third interface disposed on the housing along the second direction, used to connect an electronic device with a third interface; wherein the first and second directions intersect; the power interface and the signal interface are electrically connected to form a power supply path between them; the third interface is electrically connected to both the power interface and the signal interface. This utility model aims to achieve the integration of multiple functions including power input, data transmission, and power output.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to a multi-interface adapter device. Background Technology

[0002] In existing technologies, electronic devices (such as thin and light laptops and smartphones) generally suffer from a limited number and variety of interfaces, making it difficult to directly connect to multiple peripherals. When users need to provide power and data transfer simultaneously, they typically need to rely on a combination of multiple independent accessories. Utility Model Content

[0003] The main purpose of this invention is to propose a multi-interface adapter device, which aims to achieve the integration of multiple functions such as power input, data transmission and power output.

[0004] To achieve the above objectives, this utility model proposes a multi-interface adapter device, comprising:

[0005] case;

[0006] A power interface is provided on the housing along the first direction, and the power interface is used to connect an external power adapter to receive external power.

[0007] A signal interface is provided on the housing along the second direction. The signal interface is used to connect to a mobile storage device. The signal interface supports data transmission with the mobile storage device and has a power output.

[0008] A third interface is provided on the housing along the second direction, and the third interface is used to connect an electronic device having the third interface;

[0009] Wherein, the first direction and the second direction are arranged to intersect;

[0010] The power interface is electrically connected to the signal interface to establish a power supply path between the power interface and the signal interface;

[0011] The third interface is electrically connected to the power interface and to the signal interface.

[0012] In one embodiment, the housing has a first sidewall and a second sidewall disposed opposite to each other, and a third sidewall and a fourth sidewall disposed opposite to each other. The power interface is disposed on one of the first sidewall and the second sidewall, the signal interface is disposed on the third sidewall, and the third interface is disposed on the fourth sidewall.

[0013] In one embodiment, one of the first sidewall and the second sidewall has a first mounting port, and the power interface is embedded in the first mounting port. The third sidewall has a second mounting port, and the signal interface is embedded in the second mounting port. The fourth sidewall has a third mounting port, and the third interface is at least partially installed in the third mounting port.

[0014] In one embodiment, the housing includes a housing body and a circuit board, the circuit board being disposed within the housing body. The first sidewall, the second sidewall, the third sidewall, and the fourth sidewall are interconnected to form the housing body. The housing body has a first mounting port, a second mounting port, and a third mounting port. The circuit board has a power interface, a signal interface, and a third interface.

[0015] In one embodiment, the housing body includes a first housing and a second housing, the first housing and the second housing being detachably connected to enclose and form a receiving cavity, and the circuit board is disposed within the receiving cavity.

[0016] In one embodiment, the housing body is a one-piece molded structure.

[0017] In one embodiment, the housing body is further provided with an annular boss, and the third interface is positioned and installed by means of the annular boss provided on the housing body.

[0018] In one embodiment, the third interface is a Lightning interface.

[0019] In one embodiment, the signal interface is any one of a USB Type-A interface, a USB Type-C interface, or a Micro USB interface.

[0020] In one embodiment, the power interface is a USB Type-C interface.

[0021] This utility model discloses a multi-interface adapter device. The main body of the device is a shell, serving as the physical support and protective outer shell for the entire device. Three key functional interfaces are provided on the shell: a power interface, a signal interface, and a third interface. The power interface, positioned along a first direction, is used to connect an external power adapter (such as a mobile phone charger), providing stable power to the entire device and connected devices. The signal interface and the third interface are both positioned along a second direction, located on the same side of the shell for easy user operation. The signal interface connects to portable storage devices such as USB flash drives and external hard drives, supporting high-speed data transmission and providing power output to the connected storage devices to ensure their normal operation. The third interface can obtain power from both the power interface and the signal interface to power external devices. Therefore, the third interface can connect to an electronic device with a corresponding interface, allowing the electronic device to obtain power or power other devices. The first and second directions intersect, meaning the insertion / removal directions of the power interface are not parallel in space to the insertion / removal directions of the signal and third interfaces, typically perpendicular or obliquely intersecting. This spatial separation of the three interfaces prevents cables from becoming tangled, squeezed, or pulled, greatly improving neatness and convenience when using the device on a desktop or in motion. Through this structural layout and internal circuit design, the multi-interface adapter integrates multiple functions: power input, data transmission, and power output. It can draw in external power to power mobile storage devices while allowing another electronic device to access the storage device's data via a signal interface, forming a multi-functional interface hub that integrates power supply, read / write, and switching. Attached Figure Description

[0022] 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 the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a structure of an embodiment of the multi-interface adapter device provided by this utility model;

[0024] Figure 2 for Figure 1 A schematic cross-sectional view;

[0025] Figure 3 An exploded view of another embodiment of the multi-interface adapter device provided by this utility model;

[0026] Figure 4 An exploded view of the structure of another embodiment of the multi-interface adapter device provided by this utility model;

[0027] Figure 5 An exploded view of the structure of another embodiment of the multi-interface adapter device provided by this utility model.

[0028] Explanation of icon numbers:

[0029] 10. Housing; 11. First sidewall; 111. First mounting port; 12. Second sidewall; 13. Third sidewall; 131. Second mounting port; 14. Fourth sidewall; 141. Third interface; 15. Housing body; 151. First housing; 152. Second housing; 16. Circuit board; 17. Annular boss; 20. Power interface; 30. Signal interface; 40. Third interface.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] This utility model proposes a multi-interface adapter.

[0035] Reference Figures 1-5 In this embodiment of the utility model, a multi-interface adapter includes:

[0036] Casing 10;

[0037] A power interface 20 is provided on the housing 10 along the first direction. The power interface 20 is used to connect an external power adapter to receive external power.

[0038] A signal interface 30 is disposed on the housing 10 along the second direction. The signal interface 30 is used to connect to a mobile storage device. The signal interface 30 supports data transmission with the mobile storage device and has a power output.

[0039] A third interface 40 is disposed on the housing 10 along the second direction, and the third interface 40 is used to connect an electronic device having the third interface 40;

[0040] Wherein, the first direction and the second direction are arranged to intersect;

[0041] The power interface 20 is electrically connected to the signal interface 30 to establish a power supply path between the power interface 20 and the signal interface 30;

[0042] The third interface 40 is electrically connected to the power interface 20 and to the signal interface 30.

[0043] This utility model describes a multi-interface adapter device, whose main function is to integrate and transfer signal transmission and power supply between different devices, acting as a bridge to enable devices with different interface types or power requirements to work together. The main structure of the device includes a housing 10, which serves as the support and protection structure for the entire device. All other interfaces and circuits are integrated or mounted on this housing. Three main interfaces are provided on the housing: a power interface 20, a signal interface 30, and a third interface 40. Specifically, the power interface 20 is located on the housing 10 along a first direction. This interface is used to connect an external power adapter, such as a common DC power plug or a USB power cable, to receive external power and provide power to the entire adapter device and connected devices. The signal interface 30 and the third interface 40 are both located on the housing 10 along a second direction. These two interfaces are aligned and can be located on the same side of the housing 10, facilitating cable routing. The signal interface 30 is mainly used to connect mobile storage devices, such as USB flash drives and external hard drives. This interface not only supports data transfer with mobile storage devices but also provides power output, allowing it to power the mobile storage device simultaneously while reading and writing data, ensuring its normal operation. The first and second directions are intersecting, with the power interface 20, signal interface 30, and third interface 40 spatially non-parallel, for example, perpendicular or at an angle. This design helps reduce cable interference, improves plug-and-play convenience, and optimizes overall space utilization. The first direction refers to the orientation of the power interface 20 on the housing 10. It can be understood as the direction in which the power interface 20 extends from the surface of the housing 10, or its plug-in / plug-out direction. For example, if the power interface is a USB Type-C interface, then the first direction is the direction of movement when the plug is inserted or removed (perpendicular to the socket plane). The second direction refers to the orientation of the signal interface 30 and third interface 40 on the housing 10. Both interfaces are positioned along this direction, meaning their plug-in / plug-out directions are approximately the same or parallel. The first and second directions intersect, but they are not parallel; instead, they form an angle in space. The power interface 20 (first direction) can be located on the top or bottom surface of the housing 10, with the insertion / removal direction being upward or downward. The signal interface 30 and the third interface 40 (second direction) are located on the side of the housing 10, with the insertion / removal direction being horizontally forward or backward. Of course, intersection also includes other angles other than 90 degrees (such as 45 degrees, 120 degrees, etc.). In the prior art, all interfaces are in the same direction (e.g., all facing backward). When connecting power and data cables, the cables will be crowded together, easily tangled, and excessively bent, affecting aesthetics and lifespan. By placing the power interface 20 and signal interface 30 in different directions, the power and data cables can be led out from different sides without interference, allowing the connected cables to be led out in an orderly and smooth manner, avoiding tangling.In terms of electrical connections, the device internally constructs specific power supply and signal paths. The power interface 20 and signal interface 30 are electrically connected, forming a power supply path. This means that electrical energy input from an external power adapter can be transmitted to the signal interface 30 through this path, thereby powering the mobile storage device connected to the signal interface 30. Furthermore, the third interface 40 is electrically connected to both the power interface 20 and the signal interface 30. The third interface 40 can obtain power not only from the power interface 20 to power external devices, but also from the signal interface 30 to power external devices. Therefore, the third interface 40 can connect to an electronic device with a corresponding interface, which can obtain power through this device or power other devices. In summary, this multi-interface adapter device, through its structural layout and internal circuit design, achieves multi-functional integration of power input, data transmission, and power output. It can introduce external power to power mobile storage devices, while allowing another electronic device to access the data on the storage device through the signal interface 30, forming a multi-functional interface hub integrating power supply, read / write, and switching.

[0044] Reference Figures 1-5 In this embodiment of the present invention, the housing 10 has a first sidewall 11 and a second sidewall 12 disposed opposite to each other, and a third sidewall 13 and a fourth sidewall 14 disposed opposite to each other. The power interface 20 is disposed on one of the first sidewall 11 and the second sidewall 12, the signal interface 20 is disposed on the third sidewall 13, and the third interface 40 is disposed on the fourth sidewall 14.

[0045] Specifically, the housing 10 in this design is constructed as a three-dimensional structure (typically a cuboid or similar shape) with four main sidewalls. These four sidewalls are arranged in pairs, with the first sidewall 11 opposite the second sidewall 12, and the third sidewall 13 opposite the fourth sidewall 14. This relative arrangement gives the housing 10 a clear spatial orientation. Based on this structure, each interface is arranged on a specific sidewall. The power interface 20 is located on one of the first sidewall 11 and the second sidewall 12. The plug of the external power adapter will be inserted into this interface from the direction of the first sidewall 11, indicating that the power interface 20 is located on one side of the housing 10 (e.g., the left or right side) and is used to connect a mobile storage device (such as a USB flash drive or external hard drive). Its insertion and removal direction is consistent with the orientation of the first or second sidewall. The signal interface 30 is located on the third sidewall 13, and the third interface 40 is located on the fourth sidewall 14. That is, the normal direction (i.e., the insertion and removal direction) of the first sidewall 11 or the second sidewall 12 where the power interface 20 is located constitutes the first direction. The normal direction of the third sidewall where the signal interface 30 is located constitutes the second direction. Furthermore, the third interface 40 is disposed on the fourth sidewall 14 opposite the third sidewall 13, with the third interface 40 and signal interface 30 located at opposite ends (opposite sides) of the housing 10. This layout further separates the power cable and the data cable connecting the electronic device, allowing both to be led out from opposite sides of the housing 10, minimizing cable crossing and tangling. Simultaneously, the power interface 20 is located on one of the other two sides of the housing 10, resulting in the three types of interfaces (power input, storage device connection, and host device connection) distributed on different sides of the housing 10, forming a reasonable and dispersed interface distribution pattern.

[0046] Reference Figures 1-5 In this embodiment of the present invention, one of the first sidewall 11 and the second sidewall 12 is provided with a first mounting port 111, the power interface 20 is embedded in the first mounting port 111, the third sidewall 13 is provided with a second mounting port 131, the signal interface 30 is embedded in the second mounting port 131, the fourth sidewall 14 is provided with a third mounting port 141, and the third interface 40 is at least partially installed in the third mounting port 141.

[0047] A first mounting opening 111 is formed on the first sidewall 11 or the second sidewall 12 of the housing 10. The power interface 20 is not simply attached to the sidewall surface, but is embedded in this mounting opening. The main body of the power interface 20 passes through the opening from inside the housing 10 and fits tightly therewith. Its exposed part is used to connect the power cord, while the internal part connects to the internal electrical components of the housing 10. Similarly, a third mounting opening 141 is formed on the fourth sidewall 14. At least a portion of the third interface 40 (usually an interface terminal or connector body) is installed in this opening to achieve positioning and fixation of the interface. In addition, a second mounting opening 131 is formed on the third sidewall 13, and the signal interface 30 is also embedded in this opening. This embedding method means that the interface and the housing 10 form an embedded connection. The outer edge of the interface is usually flush with or slightly recessed from the sidewall of the housing, rather than protruding from the surface of the housing. By embedding the interface into the mounting port of the housing 10, the mechanical stress (such as tension and torsion) experienced by the interface when plugging and unplugging external cables can be more effectively transferred to the structure of the housing 10, rather than relying solely on the solder joints between the interface and internal electrical components. This significantly enhances the tensile strength and durability of the interface, preventing loosening of the interface or breakage of solder joints due to frequent plugging and unplugging, thereby extending the service life of the device. The embedded installation results in a smooth transition between the interface and the housing surface, creating a cleaner and more integrated overall appearance, avoiding the abruptness and risk of impact caused by protruding interfaces. Simultaneously, this structure facilitates the addition of sealing rings or the use of interference fits between the interface and the mounting port, improving the device's dust and moisture resistance and enhancing its environmental adaptability.

[0048] Reference Figures 1-5 In this embodiment of the present invention, the housing 10 includes a housing body 15 and a circuit board 16. The circuit board 16 is disposed inside the housing body 15. The first sidewall 11, the second sidewall 12, the third sidewall 13 and the fourth sidewall 14 are interconnected to form the housing body 15. The housing body 15 has a first mounting port 111, a second mounting port 121 and a third mounting port 131. The circuit board 16 has a power interface 20, a signal interface 30 and a third interface 40.

[0049] The entire housing 10 consists of two parts: the housing body 15 and the circuit board 16. The housing body 15 is the main structural frame of the device, formed by interconnected and enclosed first sidewalls 11, second sidewalls 12, third sidewalls 13, and fourth sidewalls 14, creating a closed or semi-closed space to house and protect the internal electronic components. These four sidewalls not only define the device's external outline but also serve as interface mounting and structural support. The first mounting port 111, second mounting port 121, and third mounting port 131 mentioned in the preceding claims are all openings directly formed on the housing body 15, serving as channels for interface connection to the outside. Simultaneously, a circuit board 16 is installed and fixed within the internal space of the housing body 15. This circuit board 16 carries the electronic circuitry and components required for power supply and data transmission. The power interface 20, signal interface 30, and third interface 40 are all located on this circuit board 16. These three interfaces are not merely physical sockets on the housing body 15; they are actually electronic connectors soldered or electrically connected to the circuit board 16. When these interfaces are embedded into the various mounting holes of the housing body 15, the interface components on the circuit board 16 are actually aligned and fixed with the openings on the housing, thereby achieving integrated external interfaces and internal circuitry. The housing body 15 provides mechanical support and protection, while the circuit board 16 carries electrical functions; the combination of the two makes the device both robust and fully functional. Electrical connections are achieved through the circuit board 16.

[0050] Reference Figures 1-5 In this embodiment of the present invention, the housing body 15 includes a first housing 151 and a second housing 152. The first housing 151 and the second housing 152 are detachably connected to form a receiving cavity, and the circuit board 16 is disposed in the receiving cavity.

[0051] Based on the aforementioned structure, the configuration of the housing body 15 is further refined by introducing a split housing design, which divides the originally integrated housing body 15 into two separable parts: a first housing 151 and a second housing 152. These two housings are detachably connected, together forming a closed internal space cavity, inside which the circuit board 16, carrying all circuits and interfaces, is installed. Specifically, the first housing 151 and the second housing 152 typically employ a symmetrical or complementary structural design, such as an upper cover and lower housing, or a front housing and a rear housing. They are joined together by snaps, screws, slides, or other detachable connecting mechanisms to form a complete housing body. When connected, their inner walls together form a sealed or semi-sealed space, i.e., a cavity, for safely accommodating the circuit board 16 and any other electronic components that may be present (such as voltage regulator chips, filter capacitors, data conversion chips, etc.). Power interface 20, signal interface 30, and third interface 40—after the circuit board 16 is installed, will extend from the mounting ports (first mounting port 111, second mounting port 121, and third mounting port 131) on the corresponding side walls of the housing 10, respectively, for connection to external devices. If a malfunction occurs during use (such as poor interface contact or circuit board damage), the user or technician can separate the first housing 151 and the second housing 152 by disassembling the connectors (e.g., unscrewing screws) to directly expose the internal circuit board 16, thus facilitating testing, component replacement, or complete circuit board replacement. This maintainability extends the product's lifespan and reduces operating costs.

[0052] Reference Figures 1-5 In this embodiment of the utility model, the shell body 15 is an integrally formed structure.

[0053] The housing body 15 is a single, integrated unit in terms of physical structure, without any detachable seams or joints. The first mounting port 111, the second mounting port 121, and the third mounting port 131 are all formed directly onto the housing 10 during the molding process, serving as an inseparable part of the housing body 15. Because there are no weak points at the joints (such as clips, screw holes, or seams), the one-piece molded housing 10 exhibits superior performance in resisting external forces, pressure, and torsion, providing better protection for the fragile internal circuit board 16 and electronic components. It is particularly suitable for environments requiring high mechanical stability.

[0054] Reference Figures 1-5 In this embodiment of the present invention, the housing body 15 is further provided with an annular boss 17, and the third interface 40 is positioned and installed by means of the annular boss 17 provided on the housing body 15.

[0055] An annular boss 17 is also provided inside the housing body 15 or in the mounting area. This boss is typically a ring-shaped structure extending vertically or obliquely from the inner surface of the housing body 15, with its central opening aligned with or connected to the second mounting port 121 on the second sidewall 12. When the third interface 40 is mounted onto the circuit board 16 and the entire circuit board assembly is ready to be installed into the housing body 15, the outer periphery of the third interface 40 passes through the second mounting port 121 and engages with the annular boss 17. The inner or outer diameter of the annular boss 17 matches the external dimensions of the third interface 40, serving as a guide and positioning element. During assembly, it guides the third interface 40 to accurately align with the second mounting port 121, preventing interface misalignment or skew. After assembly, it provides support and restraint for the third interface 40 from the side or rear, ensuring that the interface is accurately and stably positioned on the housing 10 and will not shift due to vibration or external forces. The third interface 40 requires frequent plugging and unplugging of external device cables during use, which generates significant mechanical stress (such as torque and tension). The annular boss 17 provides additional physical support for the interface, sharing some of the external stress and preventing all the stress from being concentrated on the solder joints on the circuit board 16. This effectively avoids solder joint cracking, interface loosening, or even damage to the circuit board 16, significantly improving the durability and impact resistance of the interface.

[0056] Reference Figures 1-5 In this embodiment of the present invention, the third interface 40 is a Lightning interface.

[0057] Specifically, the core function of this multi-interface adapter is to integrate power input, data transmission, and interface conversion. The third interface 40 is used to connect external electronic devices. When this interface is limited to a Lightning connector, this device is specifically designed to connect to Apple devices that use the Lightning connector, such as iPhones, iPads, and iPod Touches. Users can connect the adapter's third interface 40 to their Apple device via a Lightning plug, while simultaneously connecting a USB flash drive, external hard drive, or other portable storage device to the device's signal interface 30, and connecting an external power adapter via the power interface 20. In this way, Apple devices can directly read data (such as photos, videos, and documents) from portable storage devices through the adapter, enabling rapid data transfer, backup, or expanded storage. Simultaneously, the device can also power the Apple device or portable storage device via the power interface, ensuring stable operation during data transmission.

[0058] Reference Figures 1-5 In this embodiment of the present invention, the signal interface 30 is any one of a USB Type-A interface, a USB Type-C interface, or a Micro USB interface.

[0059] Specifically, the signal interface 30 plays a crucial role in connecting mobile storage devices (such as USB flash drives, portable hard drives, card readers, etc.) and enabling data transmission and power output. By defining this interface as any of the three common USB interface standards mentioned above, the adapter can be flexibly configured to support devices with different interface types according to actual needs or different product models.

[0060] Reference Figures 1-5 In this embodiment of the present invention, the power interface 20 is a USB Type-C interface.

[0061] Specifically, the adapter originally connects to an external power adapter via power interface 20 to receive external power, providing power to the entire device and its connected devices (such as mobile storage devices or electronic devices connected via a third interface). When this power interface is limited to a USB Type-C interface, it means that users can use widely available USB Type-C chargers (such as the C-port chargers that come standard with mobile phones and laptops) to power the adapter via a single Type-C cable. This not only simplifies the user's accessory carrying needs but also fully utilizes the advantages of modern power technology.

[0062] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-interface adaptation apparatus, characterized by, The shell comprises: a power interface arranged on the shell along a first direction, the power interface being used for connecting an external power adapter to receive external power supply; a signal interface arranged on the shell along a second direction, the signal interface being used for connecting a mobile storage device, the signal interface supporting data transmission with the mobile storage device and having a power output; a third interface arranged on the shell along the second direction, the third interface being used for connecting an electronic device having a third interface; wherein the first direction and the second direction are arranged intersectingly; the power interface is electrically connected with the signal interface to form a power supply path of the power interface and the signal interface; the third interface is electrically connected with the power interface and the signal interface. The shell has oppositely arranged first and second side walls and oppositely arranged third and fourth side walls, the power interface is arranged on one of the first and second side walls, the signal interface is arranged on the third side wall, and the third interface is arranged on the fourth side wall.

2. The multi-interface adaptation device of claim 1, wherein, One of the first and second side walls is provided with a first mounting opening, the power interface is embedded in the first mounting opening, the third side wall is provided with a second mounting opening, the signal interface is embedded in the second mounting opening, and the fourth side wall is provided with a third mounting opening, and the power interface is at least partially installed in the third mounting opening.

3. The multi-interface adaptation device of claim 2, wherein, The shell comprises a shell body and a circuit board, the circuit board is arranged in the shell body, the first, second, third and fourth side walls are connected to each other to form the shell body, the shell body has the first, second and third mounting openings, and the circuit board has the power interface, the signal interface and the third interface.

4. The multi-interface adaptation device of claim 3, wherein, The shell body comprises a first shell and a second shell, the first shell is detachably connected with the second shell to form an accommodation cavity, and the circuit board is arranged in the accommodation cavity.

5. The multi-interface adaptation device of claim 4, wherein, The shell body is an integral molding structure.

6. The multi -interface adaptation device of claim 4, wherein, The shell body is further provided with an annular boss, and the third interface is positioned and installed through the annular boss arranged on the shell body.

7. The multi -interface adaptation device of claim 4, wherein, The third interface is a Lightning interface.

8. The multi -interface adaptation device of claim 1, wherein, The signal interface is any one of a USB Type-A interface, a USB Type-C interface or a Micro USB interface.

9. The multi -interface adaptation device of claim 1, wherein, The power interface is a USB Type-C interface.

10. The multi -interface adaptation device of claim 1, wherein, ​

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