Linear motor for use with a smart ring
By optimizing the structural design of the smart ring linear motor, using an arc-shaped shell and Z-shaped support springs, combined with permanent magnets and electromagnetic force, the problem of poor vibration output in existing technologies has been solved, achieving stronger vibration feedback and more efficient installation and maintenance, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BAOLONG M&E CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing linear motors in smart rings have poor vibration output performance, making it difficult for users to feel vibration feedback during exercise or work, which affects information transmission and the overall structural reliability.
A linear motor designed for use with a smart ring is employed, featuring an arc-shaped housing and a Z-shaped support spring structure. Combining permanent magnets and electromagnetic force, the motor's spatial layout and vibration output are optimized. This includes a hollow design to reduce weight and a wire outlet groove on the housing to simplify the wiring process.
It improves the compatibility and vibration output intensity of linear motors in smart rings, provides clear and strong tactile feedback, reduces weight, simplifies installation and maintenance, and enhances user interaction and device communication.
Smart Images

Figure CN224305634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a linear motor used in conjunction with a smart ring. Background Technology
[0002] As a cutting-edge wearable device, smart rings blend technology and fashion, offering diverse functions. In terms of health monitoring, they can track physiological indicators such as heart rate, blood oxygen, and blood pressure in real time, and can also monitor sleep throughout the day. Some models can accurately record 24 types of exercise data. Additionally, some brands connect to smartphones via Bluetooth, supporting remote photo taking and other operations. In terms of hardware configuration, the linear motor plays a crucial role, providing precise and subtle vibration feedback. When the smart ring detects abnormal heart rate, changes in sleep stages, or new message notifications, it emits vibrations of varying intensities and rhythms through the linear motor, silently and effectively notifying the user and allowing them to be informed promptly without disturbing the surrounding environment like sound alerts. However, existing linear motors used in rings have unsatisfactory performance, making it difficult for users to feel the vibration output during exercise or work, affecting information transmission and reducing the overall reliability of the structure. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a linear motor for use with smart rings. It has a simple structure, a more reasonable structural layout, ensures the reliability of vibration output, and has good performance.
[0004] To achieve the above objectives, this utility model provides a linear motor for use with a smart ring, including a housing. The housing includes an arc-shaped main body and support portions on both sides of the main body. A winding and a circuit board for changing the current flow of the winding are disposed on the side wall of the main body. A mass block is also disposed within the housing. The mass block includes an arc-shaped portion corresponding to the position of the main body and a positioning portion corresponding to the support portions. A permanent magnet is disposed on the arc-shaped portion corresponding to the winding position. The curvature of the arc-shaped portion of the mass block is adapted to the curvature of the main body. Supporting springs are connected to the front and rear end faces of the arc-shaped portion, respectively. One end of each supporting spring is connected to the edge of the arc-shaped portion, and the other end is connected to the inner wall of the main body. The supporting springs are arc-shaped, and the two supporting springs and the arc-shaped portion of the mass block are combined in a Z-shape.
[0005] The advantages of this design are as follows: This structure, with its curved main body perfectly matching the contours of the smart ring, greatly enhances its adaptability within the ring. Compared to traditional linear motors, its installation process is simpler, requiring no complex adaptation adjustments. It can be quickly and accurately embedded into the ring's internal space, effectively saving installation time and labor costs. The coordinated layout of the curved main body and the two side supports cleverly conforms to the irregular spatial structure inside the ring, maximizing space utilization. This not only allows the linear motor to operate stably within a limited space but also provides more possibilities for the layout of other electronic components inside the ring, contributing to improved overall functional integration of the smart ring. The two support springs and the curved part of the mass block combine to form a Z-shaped arrangement. When the winding is energized and generates electromagnetic force, the mass block vibrates under the interaction of the permanent magnet and the electromagnetic force. The Z-shaped structure effectively amplifies the vibration effect, making the linear motor's vibration output stronger and providing users with clearer and stronger tactile feedback. Whether it's message notifications or function operation feedback, users can get an intuitive and accurate experience, which greatly improves the interactive experience of the smart ring and enhances the communication between the user and the device.
[0006] As a further feature of this invention, the supporting spring is hollowed out.
[0007] The beneficial effects of this design are: it effectively reduces the weight of the support spring itself, thereby reducing the overall weight of the linear motor. This is significant for wearable devices like smart rings, which are extremely sensitive to weight, as it reduces the burden on the wearer even after prolonged use. Regarding vibration performance, the hollow design, while reducing weight, does not weaken the support spring's role in supporting the mass block. On the contrary, due to its reduced weight, it can respond more quickly to the movement of the mass block during vibration, resulting in more agile and efficient vibration output.
[0008] As a further feature of this invention, a positioning step is formed between the arc-shaped portion of the mass block and the positioning portion, and the supporting spring abuts against the positioning step.
[0009] The advantages of this design are as follows: During installation, the positioning step precisely guides the installation position of the support spring, greatly improving assembly efficiency and preventing misalignment. Simultaneously, during motor operation, the support spring firmly abuts against the positioning step, significantly ensuring connection stability. Even under high-intensity vibration environments, it effectively prevents the support spring from shifting or falling off, ensuring stable vibration transmission of the mass block. This provides a solid guarantee for the linear motor to continuously and efficiently output stable vibration, further enhancing the user experience of the smart ring.
[0010] As a further feature of this invention, a flange is provided on the side wall of the housing body, and the winding is arranged around the flange.
[0011] The beneficial effects of this configuration are: it makes the overall structural layout more reasonable, effectively improves the winding's pull-in output effect, and the central placement of the preferred coil and flange ensures a uniform overall mass distribution, making the vibration output more stable and reliable, and improving the structure's performance.
[0012] As a further feature of this invention, a cable outlet groove is provided on the housing corresponding to the position of the circuit board.
[0013] The benefits of this design are as follows: During wiring, the cable trays provide a clear and fixed path for the cables, preventing tangled and messy wiring and making the wiring plan more organized. During assembly, workers can easily connect the cables to the circuit board based on the cable tray positions, eliminating the need to repeatedly search for connection points in confined spaces, significantly reducing assembly difficulty and saving time. Furthermore, during later maintenance and repair, the cable trays make cable troubleshooting and replacement more convenient, allowing maintenance personnel to quickly locate the cables, reducing maintenance workload and improving overall product maintenance efficiency. Attached Figure Description
[0014] Figure 1 This is a perspective structural diagram of the assembly process of an embodiment of this utility model;
[0015] Figure 2 This is a perspective structural diagram of an embodiment of the present utility model;
[0016] Figure 3 This is a schematic diagram of the internal assembly structure of an embodiment of the present utility model;
[0017] Figure 4 This is a schematic diagram of the internal structural layout of an embodiment of the present utility model. Detailed Implementation
[0018] An example of the implementation of this utility model using a linear motor in conjunction with a smart ring. Figures 1 to 4As shown: The housing includes a shell 1, which includes an arc-shaped main body 11 and support portions 12 on both sides of the main body 11. A winding 31 and a circuit board 3 for changing the current direction of the winding 31 are provided on the side wall of the main body 11. A mass block is also provided in the shell 1. The mass block includes an arc-shaped portion 21 corresponding to the position of the main body 11 and a positioning portion 22 corresponding to the support portion 12. A permanent magnet 4 is provided on the arc-shaped portion 21 corresponding to the position of the winding 31. The curvature of the arc-shaped portion 21 of the mass block is adapted to the curvature of the main body 11. Supporting spring pieces 5 are respectively connected to the front and rear end faces of the arc-shaped portion 21. One end of the supporting spring piece 5 is connected to the edge of the arc-shaped portion 21, and the other end is connected to the inner wall of the main body 11. The supporting spring pieces 5 are arc-shaped, and the two supporting spring pieces 5 and the arc-shaped portion 21 of the mass block are combined to form a Z-shape. The advantages of this design are as follows: This structure, with its curved main body 11 perfectly matching the contours of the smart ring, greatly enhances its adaptability within the ring. Compared to traditional linear motors, its installation process is simpler, requiring no complex adaptation adjustments. It can be quickly and accurately embedded into the ring's internal space, effectively saving installation time and labor costs. The coordinated layout of the curved main body 11 and the two side support portions 12 cleverly fits the irregular spatial structure inside the ring, maximizing space utilization. This not only allows the linear motor to operate stably within a limited space but also provides more possibilities for the layout of other electronic components inside the ring, helping to improve the overall functional integration of the smart ring. The two support springs 5 and the curved portion 21 of the mass block form a Z-shaped arrangement. When the winding 31 is energized to generate electromagnetic force, the mass block vibrates under the interaction of the permanent magnet 4 and the electromagnetic force. The Z-shaped structure effectively amplifies the vibration effect, making the linear motor's vibration output stronger and providing the user with clearer and stronger tactile feedback. Whether it's message notifications or function operation feedback, users can get an intuitive and accurate experience, which greatly improves the interactive experience of the smart ring and enhances the communication between the user and the device.
[0019] As a further feature of this embodiment, the support spring 5 is hollowed out. The beneficial effect of this design is that it effectively reduces the weight of the support spring 5 itself, thereby reducing the overall weight of the linear motor. This is significant for wearable devices like smart rings, which are extremely sensitive to weight, as it reduces the burden on the wearer even after prolonged use. Regarding vibration performance, the hollow design, while reducing weight, does not weaken the support of the support spring 5 on the mass block. On the contrary, due to its reduced weight, it can respond more quickly to the movement of the mass block during vibration, resulting in more agile and efficient vibration output.
[0020] As a further feature of this embodiment, a positioning step 23 is formed between the arcuate portion 21 of the mass block and the positioning portion 22, and the supporting spring piece 5 abuts against the positioning step 23. The beneficial effects of this configuration are: during installation, the positioning step 23 can accurately guide the installation position of the supporting spring piece 5, greatly improving assembly efficiency and preventing misalignment of the supporting spring piece 5. Simultaneously, when the motor is running, the supporting spring piece 5 tightly abuts against the positioning step 23, greatly ensuring the stability of the connection. Even under high-intensity vibration environments, it can effectively prevent the supporting spring piece 5 from shifting or falling off, ensuring that the vibration transmission of the mass block remains stable, thus providing a solid guarantee for the continuous and efficient output of stable vibration by the linear motor, further enhancing the user experience of the smart ring.
[0021] As a further feature of this embodiment, a flange is provided on the side wall of the main body 11 of the housing 1, and the winding 31 is arranged around the flange. The beneficial effects of this arrangement are: this arrangement makes the overall structural layout more reasonable, and at the same time effectively improves the pull-in output effect of the winding 31. As a preferred coil and the flange are centrally positioned, the overall mass distribution is uniform, making the vibration output more stable and reliable, and improving the performance of the structure.
[0022] As a further feature of this embodiment, a cable outlet groove is provided on the housing 1 corresponding to the position of the circuit board 3. The advantages of this design are: during wiring, the cable outlet groove provides a clear and fixed path for the wiring, avoiding messy tangles and making wiring planning more orderly. During assembly, workers can easily connect the wiring to the circuit board 3 according to the position of the cable outlet groove, eliminating the need to repeatedly search for wiring connection points in confined spaces, significantly reducing the difficulty of assembly operations and effectively saving assembly time. Moreover, during later maintenance and repair, the cable outlet groove makes wiring troubleshooting and replacement more convenient, allowing maintenance personnel to quickly locate the wiring, reducing maintenance workload and improving the overall maintenance efficiency of the product.
[0023] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.
Claims
1. A linear motor for use with a smart ring, comprising a housing, the housing including an arc-shaped main body and support portions disposed on both sides of the main body, a winding and a circuit board for changing the direction of the winding current disposed on the side wall of the main body, and a mass block disposed in the housing, the mass block including an arc-shaped portion disposed corresponding to the position of the main body and a positioning portion disposed corresponding to the support portions, a permanent magnet disposed on the arc-shaped portion corresponding to the position of the winding, characterized in that: The curvature of the arc-shaped part of the mass block is adapted to the curvature of the main body. Supporting springs are connected to the front and rear end faces of the arc-shaped part, with one end of the supporting spring connected to the edge of the arc-shaped part and the other end connected to the inner wall of the main body. The supporting springs are arranged in an arc shape, and the two supporting springs and the arc-shaped part of the mass block are combined to form a Z-shape.
2. The linear motor for use with a smart ring according to claim 1, characterized in that: The support spring is hollowed out.
3. The linear motor for use with a smart ring according to claim 1, characterized in that: A positioning step is formed between the arc-shaped part of the mass block and the positioning part, and the supporting spring abuts against the positioning step.
4. The linear motor for use with a smart ring according to claim 2, characterized in that: A flange is provided on the side wall of the main body of the housing, and the winding is arranged around the flange.
5. The linear motor for use with a smart ring according to claim 1, characterized in that: The housing has a cable outlet groove at the position corresponding to the circuit board.