Mobile charging device for conveniently charging watch and use method
By using a ring-shaped support base and a snap-on slot or magnetic plug-in structure, the problem of discontinuous heart rate monitoring during watch charging is solved, achieving stable fixation of the watch while charging and continuous monitoring of health data, thus improving the device's continuous monitoring capabilities and safety.
Patent Information
- Application Number
- CN202512053100.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-24
AI Technical Summary
Existing watch power banks cannot continuously monitor heart rate during charging, reducing the device's continuous monitoring capabilities and safety.
A convenient mobile charging device for charging watches has been designed. It adopts a ring-shaped support base and a ring-shaped snap-fit structure, combined with a snap-fit slot or magnetic plug structure, to achieve a stable fixation of the watch during charging and ensure that the sensor area is not affected by skin contact.
During charging, the watch can still be worn normally and continuously monitor health data, improving the device's continuous monitoring capabilities and safety, while balancing charging efficiency and user experience.
Smart Images

Figure CN121727191A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of watch power bank technology, and in particular to a mobile charging device and method for conveniently charging watches. Background Technology
[0002] Smartwatches are watches with built-in intelligent systems and smartphone operating systems, connected to the internet to achieve multiple functions. They can synchronize calls, text messages, emails, photos, music, and more from a mobile phone. Display methods include analog, numerical, and graphical displays, and they can also monitor the user's heart rate in real time. Currently, most smartwatches use built-in lithium batteries for power. However, the lithium batteries in smartwatches are relatively small. Due to limitations in battery size and energy density, the amount of power that can be charged in a smartwatch is relatively low, generally between 150 and 400 mAh. During use, the chip, Bluetooth, screen, and other components of a smartwatch consume power, resulting in high power consumption and short standby time. Therefore, watch power banks have been developed on the market for emergency charging of smartwatches.
[0003] Existing smartwatch power banks require the watch to be removed from the wrist for charging. This prevents heart patients from continuously monitoring their heart rate while charging, and also makes it difficult for athletes to obtain real-time heart rate data during activity, thus reducing the device's continuous monitoring capabilities and safety. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a mobile charging device and method for conveniently charging watches, which solves the problem that continuous heart rate monitoring during watch charging reduces the device's continuous monitoring capability and safety assurance.
[0005] The above-mentioned objective of this application is achieved through the following technical solution: a mobile charging device for convenient watch charging, including a charging power source body, a charging interface on one side of the charging power source body for electrical connection with the charging contacts of the watch; and a fixing component on the side of the charging power source body with the charging interface for detachably fixing the charging power source body to the back of the watch during charging.
[0006] Furthermore, the fixing component includes an annular support base and an annular snap-fit component. The annular support base is fixed on the side of the charging power source body facing the watch, and the annular snap-fit component is rotatably disposed on the corresponding side of the charging power source body. A fixing member is provided between the annular support base and the annular snap-fit component to detachably lock the two together.
[0007] Furthermore, a button is provided on one side of the charging power source body for locking the ring-shaped connector onto the charging power source body.
[0008] Furthermore, the fastener is a snap-on or magnetic plug-in structure.
[0009] Furthermore, when the fastener is a snap-fit and slot structure, it includes two snaps symmetrically disposed on the bottom surface of the annular snap-fit component, and two slots correspondingly disposed on the top surface of the annular support base, wherein the snaps can be snapped into the slots.
[0010] Furthermore, when the fastener is a magnetic plug-in structure, it includes two symmetrically arranged connecting posts on the bottom surface of the annular snap-fit component, and two corresponding connecting slots opened on the top surface of the annular support base; the bottom end of the connecting post and the bottom of the connecting slot are both provided with magnets, and the connecting post can be plugged in and magnetically fixed in the connecting slot.
[0011] Furthermore, a groove is provided on the top surface of the annular support base, which extends to the charging port to guide the watch's charging contacts to slide and connect with the charging port.
[0012] Furthermore, the top surface of the annular support base is provided with a first gasket, which has a through hole communicating with the slide groove; the bottom surface of the annular snap fastener is provided with a second gasket.
[0013] Furthermore, a method for using a convenient mobile charging device for charging watches, applicable to any of the above-mentioned technical solutions, includes the following steps: S1. Placement and Positioning: Place the watch with the back facing the ring-shaped support base, aligning the watch's charging contacts with the groove. S2. Sliding Connection: Slide the watch along the groove until the charging contacts are electrically connected to the charging port of the power supply unit. S3. Locking Charging: Rotate the ring-shaped latch to lock it to the ring-shaped support base using the fixing piece, thus clamping and fixing the watch in place for charging. S4. Reinforcing Locking: Press the button to lock the ring-shaped latch onto the power supply unit.
[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. When using this device, first place the watch face down on the ring-shaped support base, ensuring the watch's charging contacts accurately align with the charging port of the power supply unit. Next, rotate the ring-shaped latch to securely fit the watch's front edge. Finally, use the fastener to lock the power supply unit and watch in place. Because the ring-shaped support base is designed to be ring-shaped, the center area of the watch's back can still contact the skin during charging, without affecting the normal monitoring of sensors such as heart rate and blood oxygen. Simultaneously, the ring-shaped latch, also a hollow ring structure, will not obstruct the watch face, allowing users to easily check the time or screen information. To further protect the watch, transparent tempered glass can be added to the ring-shaped hollow area, protecting the watch face from scratches without affecting visibility or touchscreen operation. In summary, this design allows the smartwatch to be worn normally and continuously monitor health data while charging, effectively improving the device's continuous monitoring capabilities and safety during charging, balancing charging efficiency and user experience.
[0015] 2. The snap-on slot structure allows for easy locking and unlocking with simple pressing or pushing, providing a clear and tactile feel. The magnetic plug structure achieves near-automatic alignment and adsorption, significantly improving assembly efficiency, especially suitable for one-handed operation. The snap-on slot structure effectively resists shaking and detachment after locking, making it suitable for dynamic scenarios such as sports. The magnetic structure provides uniform adsorption force, ensuring easy disassembly while also providing sufficient holding force to prevent charging interruptions due to external pulling. Both structures are compatible with the ring-shaped support base and snap-on design, without affecting the sensor area on the back of the watch and its contact with the skin, ensuring uninterrupted health monitoring during charging while maintaining watch face visibility and operational integrity. By offering both snap-on and magnetic options, this design further enhances the product's flexibility and ergonomics, enabling the power bank to be safely, stably, and conveniently fixed in various scenarios, providing users with a seamless charging and monitoring experience.
[0016] 3. During assembly, the first gasket is placed between the annular support base and the back of the watch, while the second gasket is located between the annular snap-fit and the watch face. The first and second gaskets cover the support area and the pressing area that contact the watch, respectively, providing cushioning and ensuring no hard contact between the watch and the power supply unit. The first and second gaskets form soft isolation for the back of the watch and the edge of the dial, effectively preventing scratches, indentations, or wear on the watch body, case, or screen caused by repeated assembly and disassembly or long-term use of the annular support base and the annular snap-fit. Furthermore, the gasket material has a certain degree of elasticity and conformability, which can adapt to the curved surface of the watch, enhancing the uniform force and stability during overall fixation, while reducing the discomfort that may be caused by direct contact between hard parts and the skin. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the snap-fit device used in the embodiment; Figure 2 This is a schematic diagram of the overall structure when the watch is charged using the power source itself; Figure 3 This is an exploded view of the overall structure of the embodiment using magnetic plug-in connection.
[0018] Reference numerals: 1. Charging power source body; 11. Button; 2. Fixing component; 21. Annular support base; 211. Slide groove; 212. First gasket; 22. Annular snap-fit component; 221. Second gasket; 3. Fixing component; 31. Buckle; 32. Slot; 33. Connecting post; 34. Connecting groove; 35. Magnet. Detailed Implementation
[0019] The present application will be further described in detail below with reference to the accompanying drawings.
[0020] Example, refer to Figures 1-3 A portable charging device for convenient watch charging includes a charging power source body 1. One side of the charging power source body 1 has a charging interface for electrical connection with the charging contacts of the watch. A fixing component 2 is provided on the side of the charging power source body 1 with the charging interface, for detachably fixing the charging power source body 1 to the back of the watch during charging. The fixing component 2 includes an annular support base 21 and an annular snap-fit component 22. The annular support base 21 is fixed to the side of the charging power source body 1 facing the watch, and the annular snap-fit component 22 is rotatably disposed on the corresponding side of the charging power source body 1. A fixing member 3 is provided between the annular support base 21 and the annular snap-fit component 22 for detachably locking the two together.
[0021] When using this device, first place the watch face down on the ring-shaped support base 21, ensuring the watch's charging contacts accurately align with the charging port of the power source 1. Next, rotate the ring-shaped latch 22 to securely fit it against the edge of the watch's front. Finally, use the fixing piece 3 to lock the power source 1 and watch in place. Because the ring-shaped support base 21 has a ring-shaped design, the central area of the watch's back can still contact the skin during charging, without affecting the normal monitoring of sensors such as heart rate and blood oxygen. Simultaneously, the ring-shaped latch 22 also has a hollow ring structure, preventing obstruction of the watch face and allowing users to easily check the time or screen information. To further protect the watch, transparent tempered glass can be added to the ring-shaped hollow area, protecting the watch face from scratches without affecting visibility or touchscreen operation. In summary, this design allows the smartwatch to be worn normally and continuously monitor health data while charging, effectively improving the device's continuous monitoring capabilities and safety during charging, balancing charging efficiency and user experience.
[0022] A button 11 is provided on one side of the charging power source body 1 for locking the ring-shaped latch 22 onto the charging power source body 1. After the watch is fixed to the charging power source body 1, the button 11 is used to lock the ring-shaped latch 22 onto the charging power source body 1, preventing it from rotating and improving the stability of the device.
[0023] The fixing component 3 can be either a snap-on structure (31, 32) or a magnetic plug-in structure. The snap-on structure (31, 32) allows for easy locking and unlocking with simple pressing or pushing, providing a clear and tactile feel. The magnetic plug-in structure achieves near-automatic alignment and adsorption, significantly improving assembly efficiency, especially suitable for one-handed operation. Once locked, the snap-on structure (31, 32) effectively resists shaking and detachment, making it suitable for dynamic scenarios such as sports. The magnetic structure provides uniform adsorption force, ensuring easy disassembly while also providing sufficient holding force to prevent charging interruptions due to external pulling. Both structures are compatible with the design of the ring-shaped support base 21 and the snap-on component, without affecting the sensor area on the back of the watch's skin contact, ensuring uninterrupted health monitoring during charging while maintaining watch face visibility and operational integrity. By offering both snap-on (31) and magnetic options, this design further enhances the product's flexibility and ergonomics, enabling the power bank to be securely, stably, and conveniently fixed in various scenarios, providing users with a seamless charging and monitoring experience.
[0024] When the fixing component 3 has a buckle 31 and slot 32 structure, it includes two buckles 31 symmetrically arranged on the bottom surface of the annular retaining member 22, and two slots 32 correspondingly opened on the top surface of the annular support base 21. The buckles 31 can be engaged in the slots 32. In use, when the back of the watch is placed on the annular support base 21 and the charging port is connected, the annular retaining member 22 is rotated to the predetermined position, so that the two buckles 31 on its bottom surface are aligned and pressed into the corresponding slots 32 on the top surface of the annular support base 21. The engagement of the buckles 31 and the slots 32 produces a clear "click" locking sensation, indicating that the two are firmly engaged, thus firmly clamping the watch between the annular support base 21 and the annular retaining member 22. The two buckles 31 and the slots 32 are symmetrically distributed, and the clamping force applied to the watch during locking is even and balanced, effectively avoiding single-point stress, preventing the watch from tilting or being locally compressed, and improving the stability of the fixation and wearing comfort.
[0025] When the fixing component 3 is a magnetic insertion structure, it includes two symmetrically arranged connecting posts 33 on the bottom surface of the annular snap-fit component 22, and two corresponding connecting slots 34 on the top surface of the annular support base 21. Magnets 35 are provided at the bottom ends of the connecting posts 33 and the bottom of the connecting slots 34, allowing the connecting posts 33 to be inserted and magnetically fixed within the connecting slots 34. In use, place the watch on the annular support base 21 and align it with the charging port. Then, rotate the annular snap-fit component 22 to its approximate position. As the two connecting posts 33 at its bottom approach the connecting slots 34, they will be guided by magnetic force to automatically correct their position and insert into the corresponding slots. When the connecting post 33 and the magnet 35 at the bottom of the connecting groove 34 attract each other, a slight suction sound will be emitted and a clear feeling of tightening will be felt. At this time, the ring-shaped locking piece 22 is firmly locked, thus stably clamping the watch. The magnetic attraction has an automatic guidance and correction function. Users do not need to align precisely. They only need to bring the ring-shaped locking piece 22 close to automatically attract and return it to its position, which greatly simplifies the operation steps. It is especially suitable for quick clamping when moving or with one hand.
[0026] The top surface of the annular support base 21 has a sliding groove 211 that extends to the charging port, guiding the watch's charging contacts to slide and connect with the charging port. In use, the user first roughly aligns the charging contacts on the back of the watch with the entrance of the sliding groove 211, then naturally pushes the watch along the track of the sliding groove 211. During the sliding process, the wall of the sliding groove 211 provides mechanical constraint and guidance to the charging contacts, allowing them to slide smoothly to the endpoint without precise alignment, until the contacts make physical contact with the charging port and complete the electrical connection, improving the ease of operation and efficiency of the device.
[0027] The top surface of the annular support base 21 is also provided with a first gasket 212, which has a through hole communicating with the slide groove 211; the bottom surface of the annular snap fastener 22 is provided with a second gasket 221. During assembly, the first gasket 212 is fitted between the annular support base 21 and the back of the watch, while the second gasket 221 is located between the annular snap fastener 22 and the watch face. The first pad 212 and the second pad 221 respectively cover the support area and the pressing area that contact the watch, providing cushioning and ensuring that there is no hard contact between the watch and the charging power supply body 1. The first pad 212 and the second pad 221 respectively form soft isolation for the back of the watch and the edge of the dial, effectively preventing the annular support base 21 and the annular snap fastener 22 from causing scratches, indentations or wear to the body, case or screen during repeated assembly and disassembly or long-term use. In addition, the pad material has a certain degree of elasticity and conformability, which can adapt to the curved surface of the watch, enhance the uniform force and stability when the whole is fixed, and reduce the discomfort that may be caused by hard parts directly contacting the skin.
[0028] A method for using a convenient mobile charging device for charging watches, applicable to any of the above-mentioned technical solutions, includes the following steps: S1, Placement and Positioning: Place the watch with the back facing the annular support base 21, aligning the watch's charging contacts with and inserting them into the slide groove 211. S2, Sliding Connection: Slide the watch along the slide groove 211 until the charging contacts are electrically connected to the charging interface of the charging power source body 1. S3, Locking Charging: Rotate the annular locking member 22, and lock the annular locking member 22 to the annular support base 21 using the fixing member 3, thereby clamping and fixing the watch therein for charging. S4, Reinforcing Locking: Press the button 11 to lock the annular locking member 22 onto the charging power source body 1. The entire usage process requires only three consecutive actions: "place, slide, and rotate," eliminating the need for complex alignment or extra operations. This results in a low learning curve and quick mastery for users. The guide rail 211 and the final fixing component 3 work together to ensure accurate electrical connection and prevent loosening due to body movement during wear, effectively preventing charging interruptions. Furthermore, button 11 locks the ring-shaped connector 11 onto the charging power source body 1 for further stability. Thanks to the ring support and hollow design, the sensor on the back of the watch remains in contact with the skin during charging, enabling continuous monitoring of health data such as heart rate and blood oxygen, truly achieving "charging without leaving your body, monitoring without interruption." Whether using the buckle 31 or magnetic fixation, the operating logic remains consistent, allowing users to choose the appropriate solution based on their device model for a smooth and reliable charging and wearing experience. The guide-type sliding connection avoids contact wear caused by repeated plugging and unplugging, while the fixed overall structure effectively reduces relative displacement, lowers interface losses, and extends the lifespan of both the watch and the power bank.
[0029] Working principle: In use, the user first roughly aligns the charging contacts on the back of the watch with the entrance of the slide groove 211, then naturally pushes the watch along the track of the slide groove 211, placing the watch face up on the annular support base 21, ensuring the charging contacts of the watch accurately align with the charging interface of the charging power source body 1; next, rotate the annular locking piece 22 to securely fit it against the edge of the watch's front; then, use the fixing piece 3 to lock the charging power source body 1 and the watch in place; finally, press the button to lock the annular locking piece 22 onto the charging power source body 1, preventing rotation. This design allows the smartwatch to be worn normally and continuously monitor health data while charging, effectively improving the device's continuous monitoring capabilities and safety during charging, balancing charging efficiency and user experience.
[0030] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A convenient mobile charging device for charging watches, comprising a charging source body (1), characterized in that, The charging power source body (1) has a charging interface on one side for electrical connection with the charging contacts of the watch; the charging power source body (1) has a fixing component (2) on the side with the charging interface for detachably fixing the charging power source body (1) to the back of the watch during charging.
2. The portable charging device for convenient watch charging according to claim 1, characterized in that: The fixing component (2) includes an annular support base (21) and an annular snap-fit component (22); The annular support base (21) is fixed on the side of the charging power source body (1) facing the watch, and the annular snap-fit (22) is rotatably disposed on the corresponding side of the charging power source body (1). A fixing member (3) is provided between the annular support base (21) and the annular snap-fit member (22) for detachably locking the two together.
3. The portable charging device for convenient watch charging according to claim 2, characterized in that: A button (11) for locking the ring-shaped connector (22) onto the charging power source body (1) is provided on one side of the charging power source body (1).
4. The portable charging device for convenient watch charging according to claim 3, characterized in that: The fastener (3) is a snap-on (31) slot (32) structure or a magnetic plug-in structure.
5. A portable charging device for convenient watch charging according to claim 4, characterized in that: When the fixing member (3) is a buckle (31) and slot (32) structure, it includes two buckles (31) symmetrically arranged on the bottom surface of the annular buckle (22) and two slots (32) correspondingly opened on the top surface of the annular support base (21). The buckles (31) can be snapped into the slots (32).
6. The portable charging device for convenient watch charging according to claim 4, characterized in that: When the fixing member (3) is a magnetic plug-in structure, it includes two connecting posts (33) symmetrically arranged on the bottom surface of the annular snap-fit member (22) and two connecting grooves (34) correspondingly opened on the top surface of the annular support base (21); the bottom end of the connecting post (33) and the bottom of the groove of the connecting groove (34) are both provided with magnets (35), and the connecting post (33) can be plugged in and magnetically fixed in the connecting groove (34).
7. A portable charging device for convenient watch charging according to claim 4, characterized in that: The top surface of the annular support base (21) is provided with a sliding groove (211), which extends to the charging interface and is used to guide the charging contacts of the watch to slide to dock with the charging interface.
8. A portable charging device for convenient watch charging according to claim 7, characterized in that: The top surface of the annular support base (21) is also provided with a first gasket (212), and the first gasket (212) has a through hole communicating with the slide groove (211); the bottom surface of the annular snap fastener (22) is provided with a second gasket (221).
9. A method of using a convenient mobile charging device, applied to the convenient mobile charging device described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Placement and positioning: Place the watch with the back facing the annular support base (21) so that the watch's charging contacts are aligned and enter the groove (211). S2, Sliding docking: Slide the watch along the slide groove (211) until the charging contact is electrically connected to the charging interface of the charging power source body (1); S3, Locking and charging: Rotate the annular snap-fit (22) and lock the annular snap-fit (22) to the annular support base (21) through the fixing member (3), thereby clamping and fixing the watch therein and charging it; S4. Enhanced locking: Press the button to lock the ring-shaped connector onto the charging power supply body.