A power bank with a rotating interface
Patent Information
- Application Number
- CN202522160620.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-13
Smart Images

Figure CN224909120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power bank technology with adapter interface, and more particularly to a power bank with adapter interface. Background Technology
[0002] With the widespread use of mobile electronic devices, power banks have become an essential daily item as portable power sources. However, existing power banks suffer from limited functionality and applicable scenarios.
[0003] Traditional power banks can only provide basic charging functions and cannot meet users' power supply needs for diverse extended devices (such as lighting, personal care, etc.). Although some technologies attempt to improve flexibility through modular design, such as using separate battery cell modules to achieve free combination of capacities, or connecting wireless charging modules through concave and convex rail structures, these solutions still have significant limitations: First, the module interfaces are complex and rely on specific rails or magnetic components, resulting in low assembly efficiency; second, functional expansion is limited to adjusting the battery cell capacity and does not cover plug-and-play power supply for heterogeneous devices such as lamp holders and shavers.
[0004] Therefore, in order to further improve the applicability of existing power banks, we propose a power bank with an adapter. Summary of the Invention
[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a power bank with an adapter.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a power bank with an adapter, including: A shell that runs through the middle; An upper cover assembly and a lower cover assembly are respectively installed at both ends of the housing, and a battery is installed between the upper cover assembly and the lower cover assembly; The upper cover assembly includes an adapter and an upper pole seat fixedly installed below the adapter. An adapter cavity is provided at the upper end of the adapter, and a connection structure for connecting the expansion component is arranged inside the adapter cavity.
[0007] Furthermore, the connection structure includes a plurality of L-shaped locking grooves formed in the adapter cavity, the upper end of the L-shaped locking grooves extending to the upper side of the adapter seat, and an elastic protrusion formed on the inner wall of the adapter cavity, the elastic protrusion being located on the lower side of the L-shaped locking grooves.
[0008] Furthermore, an adapter circuit board is fixedly installed above the upper pole seat, and the adapter circuit board is equipped with contact terminals that protrude from the adapter cavity of the adapter seat.
[0009] Furthermore, the lower cover assembly includes a lower electrode base and a positive electrode cover plate. The lower electrode base has a main circuit board fixedly installed inside and a charging port installed at its lower end. The charging port is electrically connected to the main circuit board, and the adapter circuit board is electrically connected to the main circuit board. The positive electrode cover plate is fixedly installed at the port of the housing.
[0010] Furthermore, multiple batteries are provided and respectively installed between the upper and lower terminals. A busbar is connected between the two ends of each of the multiple batteries. The busbar at the upper cover assembly is electrically connected to the main circuit board via a wire, and the busbar at the lower cover assembly is electrically connected to the main circuit board.
[0011] Furthermore, the expansion component includes a plug portion configured with a resilient pin terminal, the outer side of the plug portion having a mating protrusion formed thereon, the plug portion and the adapter cavity being movably plugged in, and the mating protrusion being snapped into the L-shaped locking groove after the plug portion is rotated, wherein the resilient pin terminal and the contact terminal are electrically connected.
[0012] Furthermore, the outer side of the mating protrusion is formed with a locking groove that engages with the elastic protrusion.
[0013] The present invention proposes a power bank with an adapter interface, which has the following advantages: The power bank of the present invention realizes the modular power supply function for expansion components through the adapter cavity and connection structure set on its adapter base; This design allows users to conveniently install different expansion components, such as lamp holders, shavers, hair dryers, and other devices with compatible interfaces that can be powered by the main body of the power bank, onto the main body of the power bank according to their needs, thereby effectively improving the adaptability of the power bank. In addition, the shell structure of the power bank is simple to assemble, further optimizing its production and the convenience of disassembly and maintenance. Attached Figure Description
[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a schematic diagram of the busbar structure of this utility model; Figure 5 This is a schematic diagram of the structure of the extension component of this utility model.
[0015] In the diagram: 1. Housing; 2. Top cover assembly; 21. Adapter base; 22. Upper electrode base; 23. Adapter cavity; 24. Connection structure; 241. L-shaped locking groove; 242. Elastic protrusion; 25. Adapter circuit board; 26. Contact terminal; 3. Bottom cover assembly; 31. Bottom electrode base; 32. Positive electrode cover plate; 33. Main circuit board; 34. Charging port; 4. Battery; 41. Busbar; 5. Extension component; 51. Elastic ejector pin terminal; 52. Insertion part; 53. Butt joint protrusion; 54. Locking groove. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] Reference Figure 1-5 As an embodiment of the utility model, a power bank with an adapter is disclosed. Specifically, the power bank includes a shell 1 that runs through the middle. In this embodiment, the shell 1 can adopt a cylindrical structure for easy gripping. In addition, the shell 1 is preferably made of aluminum shell material to achieve efficient heat dissipation. An upper cover assembly 2 and a lower cover assembly 3 are respectively installed at both ends of the housing 1, and a battery 4 is installed between the upper cover assembly 2 and the lower cover assembly 3; The upper cover assembly 2 includes an adapter 21 and an upper pole seat 22 fixedly installed below the adapter 21. An adapter cavity 23 is provided at the upper end of the adapter 21, and a connection structure 24 for connecting the extension component 5 is arranged inside the adapter cavity 23.
[0018] In some embodiments, the connection structure 24 of the present invention includes a plurality of L-shaped locking grooves 241 formed in the adapter cavity 23, the upper end of the L-shaped locking grooves 241 extending through to the upper side of the adapter seat 21, and an elastic protrusion 242 is also formed on the inner wall of the adapter cavity 23, the elastic protrusion 242 being located on the lower side of the L-shaped locking grooves 241.
[0019] Furthermore, based on the above embodiments, in this embodiment, an adapter circuit board 25 is fixedly installed above the upper pole seat 22, and a contact terminal 26 is disposed on the adapter circuit board 25, the contact terminal 26 protruding from the adapter cavity 23 of the adapter seat 21.
[0020] In some embodiments, the extension component 5 of the present invention includes a plug portion 52 configured with a resilient pin terminal 51. A mating protrusion 53 is formed on the outer side of the plug portion 52. The plug portion 52 and the adapter cavity 23 are movably plugged into each other. After the plug portion 52 is rotated, the mating protrusion 53 is snapped into the L-shaped locking groove 241. The resilient pin terminal 51 and the contact terminal 26 are electrically connected.
[0021] Furthermore, based on the above embodiments, in this embodiment, the outer side of the mating protrusion 53 is formed with a locking groove 54 that engages with the elastic protrusion 242.
[0022] This embodiment uses a lamp holder structure with an adapter interface as an example for specific explanation.
[0023] Specifically, each extension component 5 has the following features at its bottom: Plug-in part 52: This plug-in part 52 is used to insert into the adapter cavity 23 of the power bank main body adapter 21 to achieve initial positioning; The mating protrusion 53 is located at the bottom of the expansion member 5. When the insertion part 51 of the expansion member 5 is inserted into the adapter cavity 23, the mating protrusion 53 can be inserted into and locked in the L-shaped locking groove 241 formed on the inner wall of the adapter cavity 23 by rotating the expansion member 5. The upper end of the L-shaped locking groove 241 extends to the upper side of the adapter seat 21, providing a path for the insertion and rotation of the mating protrusion 53. Locking groove 54: A locking groove 54 is provided on the mating protrusion 53. The locking groove 54 is adapted to the elastic protrusion 242 formed on the inner wall of the adapter cavity 23. When the mating protrusion is rotated into the locking position of the L-shaped locking groove 241, the elastic protrusion 242 will elastically engage in the locking groove 54, providing axial limiting and anti-loosening functions, and ensuring the stability of the connection between the extension component and the main body of the power bank. Power supply circuit board: The bottom of the expansion component 5 also has a built-in power supply circuit board. The elastic pin terminal 51 is installed on the power supply circuit board. When the expansion component 5 is installed in place, that is, when the plug is inserted into the adapter cavity 23, the mating protrusion 53 rotates and snaps into the L-shaped locking groove 241 and the elastic protrusion 242 snaps into the slot, the elastic pin terminal 51 will form a reliable electrical connection with the contact terminal 26 provided on the adapter circuit board 25 in the power bank body. Through this connection, the power bank body can provide the required power to the expansion component.
[0024] Of course, in this embodiment, a plug can also be inserted into the adapter cavity 23. When not docking, the adapter cavity 23 can be sealed by inserting the plug.
[0025] In some embodiments, the lower cover assembly 3 of the present invention includes a lower electrode base 31 and a positive electrode cover plate 32. The lower electrode base 31 has a main circuit board 33 fixedly installed inside and a charging port 34 installed at its lower end. The charging port 34 is electrically connected to the main circuit board 33. The adapter circuit board 25 is electrically connected to the main circuit board 33. The positive electrode cover plate 32 is fixedly installed at the port of the housing 1.
[0026] Specifically, in this embodiment, the charging port 34 can be configured as a TYPE-C port that is electrically connected to the main circuit board 33 to provide power to the battery 4.
[0027] Of course, in this embodiment, multiple batteries 4 are provided and are respectively installed between the upper electrode 22 and the lower electrode 31. A busbar 41 is connected between the two ends of the multiple batteries 4. The busbar 41 at the upper cover assembly 2 is electrically connected to the main circuit board 33 through a wire. The busbar 41 at the lower cover assembly 3 is electrically connected to the main circuit board 33.
[0028] Optionally, in this embodiment, the battery 4 is set as an 18650 lithium battery. The two ends of the plurality of batteries 4 are connected in parallel through a busbar 41 and then electrically connected to the main circuit board 33. In this way, the power supply to the external expansion component 5 can be realized, and it can also be charged through the charging port 34. This method is a conventional method for those skilled in the art and will not be described in detail here.
[0029] In summary, the power bank of this utility model, through the adapter cavity 23 and connecting structure 24 provided on its adapter base 21, realizes the modular power supply function for the expansion component 5. This design allows users to conveniently install different expansion components 5, such as lamp holders, shavers, hair dryers, and other devices with compatible interfaces that can be powered by the power bank body, onto the power bank body according to their needs, thereby effectively improving the power bank's adaptability. In addition, the power bank's shell structure is simple to assemble, further optimizing its ease of production, disassembly, and maintenance.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A power bank with an adapter, characterized in that, include: A shell that runs through the middle (1); An upper cover assembly (2) and a lower cover assembly (3) are respectively installed at both ends of the housing (1), and a battery (4) is installed between the upper cover assembly (2) and the lower cover assembly (3). The upper cover assembly (2) includes an adapter (21) and an upper pole seat (22) fixedly installed below the adapter (21). An adapter cavity (23) is provided at the upper end of the adapter (21), and a connection structure (24) for connecting the extension component (5) is arranged inside the adapter cavity (23).
2. A power bank with an adapter interface according to claim 1, characterized in that: The connecting structure (24) includes a plurality of L-shaped locking grooves (241) formed in the adapter cavity (23), the upper end of the L-shaped locking grooves (241) extending to the upper side of the adapter seat (21), and an elastic protrusion (242) is also formed on the inner wall of the adapter cavity (23), the elastic protrusion (242) being located on the lower side of the L-shaped locking grooves (241).
3. A power bank with an adapter according to claim 2, characterized in that: An adapter circuit board (25) is fixedly installed above the upper pole seat (22). The adapter circuit board (25) is equipped with contact terminals (26), which protrude from the adapter cavity (23) of the adapter seat (21).
4. A power bank with an adapter according to claim 3, characterized in that: The lower cover assembly (3) includes a lower electrode base (31) and a positive electrode cover plate (32). The lower electrode base (31) has a main circuit board (33) fixedly installed inside and a charging port (34) installed at its lower end. The charging port (34) is electrically connected to the main circuit board (33). The adapter circuit board (25) is electrically connected to the main circuit board (33). The positive electrode cover plate (32) is fixedly installed at the port of the housing (1).
5. A power bank with an adapter according to claim 4, characterized in that: Multiple batteries (4) are provided and installed between the upper electrode (22) and the lower electrode (31). A busbar (41) is connected between the two ends of each battery (4). The busbar (41) at the upper cover assembly (2) is electrically connected to the main circuit board (33) through a wire. The busbar (41) at the lower cover assembly (3) is electrically connected to the main circuit board (33).
6. A power bank with an adapter according to claim 3, characterized in that: The extension component (5) includes a plug portion (52) configured with a resilient pin terminal (51). A mating protrusion (53) is formed on the outer side of the plug portion (52). The plug portion (52) and the adapter cavity (23) are movably plugged in. The mating protrusion (53) is snapped into the L-shaped locking groove (241) after the plug portion (52) is rotated. The resilient pin terminal (51) and the contact terminal (26) are electrically connected.
7. A power bank with an adapter according to claim 6, characterized in that: The outer side of the mating protrusion (53) is formed with a locking groove (54) that engages with the elastic protrusion (242).