A USB charging device

By designing a USB charging device with a main connector and an adapter that incorporates conversion circuitry, the problem of traditional devices requiring multiple converters is solved, enabling easy portability and storage of interface switching.

CN224596199UActive Publication Date: 2026-08-04CHANGQI ELECTRONICS SHENZHEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGQI ELECTRONICS SHENZHEN
Filing Date
2025-10-11
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional USB charging devices require multiple adapters due to the different connection methods of USB-A and USB-C, making them inconvenient to use and carry.

Method used

Design a USB charging device comprising a main connector and an adapter. The main connector contains a conversion circuit, and the adapter is rotatable and has USB-A and USB-C interfaces. The interface switching is achieved through the conversion circuit. The main connector is provided with grooves and clamps to facilitate the storage of the charging cable.

Benefits of technology

It enables easy-to-carry and use interface switching, improving the portability and storage efficiency of the charging device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a charging device field especially a USB charging device, the device includes main connecting piece and adapter piece, carries over conversion circuit one in main connecting piece, one side of main connecting piece is equipped with the spud, the other side of main connecting piece is equipped with USB A interface, spud and USB A interface are connected respectively with conversion circuit one and realize electric signal transmission, adapter piece rotates and is equipped in one side of main connecting piece, one side of adapter piece is equipped with USB A connector close to main connecting piece, the other side of adapter piece is equipped with USB C interface, be equipped with conversion circuit two in adapter piece, conversion circuit two realizes the electric signal transmission of USB A and USB C, USB A connector is detachably inserted with USB A interface. The utility model rotates and sets up the conversion piece in one side of main connecting piece, utilizes the transmission of USB A connector to USB C interface, realizes the connector switching of charging device, and convenient to use, is convenient for carrying.
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Description

Technical Field

[0001] This utility model relates to the field of charging devices, and in particular to a USB charging device. Background Technology

[0002] Traditional USB charging devices are widely used in the mobile phone industry because they allow for the separation of the cable and the adapter. However, because the connection between the two is designed with USB-A and USB-C connection methods, different adapters are required for different cables, which is inconvenient to carry. Therefore, a new USB charging device is needed. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a USB charging device that is easy to carry and can switch between dual interfaces.

[0004] This utility model provides a USB charging device, including a main connector and an adapter. The main connector houses a first conversion circuit. One side of the main connector has a pin, and the other side has a USB-A interface. The pin and the USB-A interface are respectively connected to the first conversion circuit to transmit electrical signals. The adapter is rotatably mounted on one side of the main connector. The adapter has a USB-A connector on the side near the main connector, and a USB-C interface on the other side. The adapter houses a second conversion circuit, which enables the transmission of electrical signals between USB-A and USB-C. The USB-A connector is detachably plugged into the USB-A interface.

[0005] Furthermore, the adapter has connecting plates extending on both the left and right sides, and the connecting plates are provided with sliding openings. The main connector has limiting posts on both the left and right sides that can pass through the sliding openings.

[0006] Furthermore, the main connector has grooves on both the top and bottom sides. When the adapter is rotated to the top or bottom of the main connector, the USB-A port can be movably inserted into the groove.

[0007] Furthermore, the top of the main connector is provided with a clamping member, the side of which near the pin is rotatably connected to the main connector, and a return spring is provided at the connection point between the two.

[0008] Furthermore, the other side of the clamp is provided with anti-slip teeth.

[0009] By adopting the above technical solution, the beneficial effects of this utility model are: This invention features a converter that rotates on one side of the main connector, allowing for the switching of the charging device's connector from a USB-A to a USB-C interface. This makes the device convenient to use and easy to carry. The adapter is stored when not in use by having a groove on the main connector. The adapter embedded in the groove, in conjunction with the clamping member, facilitates the winding and storage of the charging cable, thus improving the charging cable storage efficiency of the charging device.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0011] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0012] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0015] 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 one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a USB charging device according to the present invention; Figure 2 This is a schematic diagram of the overall structure of a USB charging device in another usage state according to this utility model. Figure 3 This is a side view of another usage state of the USB charging device of this utility model; Explanation of key figure labels: 1. Main connector; 11. Pins; 12. USB-A interface; 13. Limiting post; 14. Groove; 15. Clamping element; 151. Anti-slip teeth; 2. Adapter; 21. USB-A connector; 22. USB-C interface; 23. Connector board; 24. Sliding opening. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1-3 This utility model provides a USB charging device, including a main connector 1 and an adapter 2. The main connector 1 houses a conversion circuit 1, which converts household AC power into a matching current suitable for the device. One side of the main connector 1 has a pin 11, and the other side has a USB-A interface 12. The pin 11 and USB-A interface 12 are respectively connected to the conversion circuit 1 to transmit electrical signals. The adapter 2 is rotatably mounted on one side of the main connector 1. The adapter 2 has a USB-A connector 21 on the side near the main connector 1, and a USB-C interface 22 on the other side. The adapter 2 houses a second conversion circuit, which transmits electrical signals between USB-A and USB-C. The USB-A connector 21 is detachably plugged into the USB-A interface 12. When the USB-A connector 21 is plugged into the USB-A interface 12, the conversion circuit 1 can switch conversion standards if necessary, so that USB-A can meet the usage requirements of USB-C. The adapter 2 rotates as follows: connecting plates 23 extend from the left and right sides of the adapter 2, and sliding openings 24 are provided on the connecting plates 23. Limiting posts 13 that can pass through the sliding openings 24 are provided on both the left and right sides of the main connector 1. To enable the adapter 2 to be stored when not in use, grooves 14 are provided on both the top and bottom sides of the main connector 1. When the adapter 2 rotates to the top or bottom of the main connector 1, the USB-A port can be movably inserted into the groove 14. If necessary, a clamping member 15 is provided on the top of the main connector 1. The side of the clamping member 15 near the pin 11 is rotatably connected to the main connector 1, and a return spring is provided at the connection point. If necessary, anti-slip teeth 151 are provided on the other side of the clamping member 15.

[0019] Working principle: When using, select whether to connect the adapter 2 to the main connector 1 according to the required interface; if it needs to be carried, lift the clamp 15, then rotate the charging cable around the main connector 1, then let the adapter 2 fit into the groove 14 on the top, and release the clamp 15.

[0020] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0021] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0022] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A USB charging apparatus, characterized by, The device includes a main connector and an adapter. The main connector houses a conversion circuit 1. One side of the main connector has a pin, and the other side has a USB-A interface. The pin and the USB-A interface are respectively connected to the conversion circuit 1 to transmit electrical signals. The adapter is rotatably mounted on one side of the main connector. The adapter has a USB-A connector on the side near the main connector, and a USB-C interface on the other side. The adapter houses a second conversion circuit, which enables the transmission of electrical signals between USB-A and USB-C. The USB-A connector is detachably plugged into the USB-A interface.

2. The USB charging apparatus of claim 1, wherein, The adapter has connecting plates extending on both the left and right sides, and the connecting plates are provided with sliding openings. The main connector has limiting posts on both the left and right sides that can pass through the sliding openings.

3. The USB charging apparatus of claim 1, wherein, The main connector has grooves on both the top and bottom sides. When the adapter is rotated to the top or bottom of the main connector, the USB-A port can be movably inserted into the groove.

4. The USB charging apparatus of claim 1, wherein, The main connector has a clamping member on its top. The side of the clamping member near the pin is rotatably connected to the main connector, and a return spring is provided at the connection point between the two.

5. The USB charging apparatus of claim 4, wherein, The other side of the clamp is equipped with anti-slip teeth.