Light-emitting limit wheel

Abstract

The application discloses a light-emitting limit wheel, which comprises a light-emitting hub and a light-transmitting elastic layer covering the periphery of the light-emitting hub. The light-emitting hub is composed of a hub body and a built-in light-emitting assembly. The light-emitting assembly comprises a power generation coil, a coaxially fixed annular circuit board, a plurality of uniformly arranged power-on light-emitting units, an insulating rubber sleeve and a magnetic core. The power generation coil is electrically connected with the annular circuit board, the magnetic core is arranged in the coil and rotates relative to the hub body. The light-emitting part of the power-on light-emitting unit extends to the outer circumferential surface of the hub body and is protected by the light-transmitting elastic layer. The core of the application is that the relative rotation of the magnetic core and the hub cuts the magnetic induction lines, so that the power generation coil generates induced current and drives the light-emitting unit to actively emit light. The application breaks the dependence on external power supply or ambient light, solves the problems of passive reflection of the traditional reflective strip, low brightness and fast decay of the luminescent material, makes the limit wheel become a self-luminous light source in the dark, significantly improves the visibility of the mover in the night or low-light environment and reduces the collision risk.

Description

Technical Field

[0001] This application relates to the technical field of limit wheels, and more specifically, to a luminous limit wheel. Background Technology

[0002] Rollerblading, a popular recreational sport and mode of transportation, is widely used among teenagers and young adults, often extending into nighttime or low-light environments. However, in darkness, the small size and low height of rollerblades make them difficult for drivers, pedestrians, and other road users to spot and identify from a safe distance, posing a significant collision hazard. To improve nighttime visibility, common practices include decorating the wheels, frames, or shoes with reflective or luminous strips. Reflective strips rely on external light sources, such as headlights or streetlights, reflecting light back to the source through their special structure. Their effectiveness is passive; when the external light source is insufficient, the angle of illumination is poor, or the observer deviates from the reflection direction, their reflective effect decreases sharply or even fails completely. Luminous strips, on the other hand, need to absorb ambient light energy beforehand to "charge," slowly releasing energy to emit light in the dark. However, their brightness decays rapidly over time, and their duration is limited. In summary, existing reflective and luminous strip solutions, due to their inherent passive or photoluminescent characteristics, suffer from significant drawbacks such as unreliable visibility, insufficient brightness, short duration, high dependence on external conditions, and limited viewing angle. They fail to effectively address the core safety issue of wheeled scooters being difficult to spot at night and in low-light environments, resulting in a still relatively high risk of collision for users. Therefore, a more proactive, brighter, longer-lasting, reliable, and more visible technological solution is urgently needed to fundamentally improve the safety performance of wheeled scooters in dark environments. Utility Model Content

[0003] To address the safety performance issue of extreme wheels in dark environments, this application provides a luminous extreme wheel.

[0004] A light-emitting wheel includes a light-emitting hub and a light-transmitting elastic layer. The light-emitting hub includes a hub body and a light-emitting component. The light-transmitting elastic layer is disposed on the outer periphery of the hub body and covers the hub body. The light-emitting component includes a power-generating coil, a ring circuit board, energized light-emitting units, an insulating sleeve, and a magnetic core. The ring circuit board is coaxially fixed to one side of the power-generating coil and electrically connected to the power-generating coil. Multiple energized light-emitting units are present, each electrically connected to the ring circuit board, and the multiple energized light-emitting units are arranged around the center of the ring circuit board. The light-emitting components are evenly arranged, and the insulating sleeve covers the electrical connection parts of the power generation coil, the annular circuit board, and the multiple energized light-emitting units. The hub body has a cavity, and the light-emitting components are fixed in the cavity. The center of the power generation coil and the center of the hub body are on the same straight line. The light-emitting parts of the multiple energized light-emitting units extend out of the outer circumference of the hub body. The light-transmitting elastic layer is disposed on the outer circumference of the hub body and wraps the portions of the multiple energized light-emitting units that extend out of the hub body. The magnetic core is placed in the power generation coil and rotates relative to the magnetic core with the hub body.

[0005] Preferably, each of the energized light-emitting units includes an LED and a pin connecting the LED. The pin is soldered to the annular circuit board. The insulating sleeve includes a circular portion covering the power-generating coil and the annular circuit board, and a cylindrical portion covering the pin and the bottom of the LED. The number of cylindrical portions corresponds to the number of energized light-emitting units. The insulating sleeve extends from the inner wall of the power-generating coil.

[0006] Preferably, the hub body includes a first circular shell and a second circular shell. The first circular shell includes a first outer ring and a first panel integrally disposed inside the first outer ring, sealing its inner hole. The first circular shell includes a second outer ring and a second panel integrally disposed inside the second outer ring, sealing its inner hole. The first outer ring and the second outer ring are mated together, and the cavity is formed between the first panel and the second panel. Both the first panel and the second panel have a through hole at their center, which corresponds to the center of the coil. Both the first panel and the second panel have a protruding ring at the edge of the through hole. The protruding rings of the first panel and the second panel abut against the inner wall of the circular portion of the insulating sleeve. The protruding ring of the second panel abuts against the protrusion on the other side of the insulating sleeve. A through hole is formed at the joint of the first outer ring and the second outer ring for the LED to pass through. The number of through holes corresponds to the number of energized light-emitting units. The inner walls of the first outer ring and the second outer ring abut against the end of the cylindrical portion of the insulating sleeve away from the circular portion.

[0007] Preferably, the first panel is provided with an annular baffle, which abuts against the outer peripheral wall of the circular portion of the insulating sleeve, and has a semi-circular slot at its top. The number of semi-circular slots matches the number of cylindrical portions of the insulating sleeve, and the cylindrical portions of the insulating sleeve are avoided by the semi-circular slots.

[0008] Preferably, an annular retaining plate protrudes from the side of the first outer ring that mates with the second outer ring, and an annular mating groove matching the annular retaining plate is provided on the side of the second outer ring that mates with the first outer ring. When the first outer ring and the second outer ring mate, the annular retaining plate passes into the annular mating groove. A first chamfer is provided on the side of the annular retaining plate away from the first outer ring, corresponding to the corner of the annular mating groove. A first sealing groove is formed between the corner of the annular mating groove and the first chamfer. A first sealing ring is built into the first sealing groove. A second chamfer is provided on the second outer ring corresponding to the corner formed by the annular retaining plate and the sidewall of the first outer ring. A second sealing groove is formed between the corner formed by the first outer ring and the annular retaining plate and the second chamfer. A second sealing ring is built into the second sealing groove.

[0009] Preferably, the light emitted by the plurality of powered light-emitting units is of different colors.

[0010] In summary, this application includes at least one of the following beneficial technical effects:

[0011] 1. The electromagnetic induction power generation device, consisting of a built-in power generation coil and a magnetic core, generates power when the wheel rotates. The magnetic core rotates relative to the wheel hub, cutting magnetic lines of force and generating an induced current in the coil. This current powers the light-emitting components, eliminating the need for an external power source or ambient light. Instead of relying on external light sources for reflection or slow release of stored light energy, the device actively emits bright light. This solves the problems of existing reflective strips relying on external light sources for passive reflection and the low brightness, rapid decay, and short duration of luminous strips. The extreme wheel becomes a conspicuous light source in dark environments, significantly increasing the likelihood of being spotted and identified early by drivers, pedestrians, and other road users from a safe distance, thus reducing the risk of collision.

[0012] 2. Excellent waterproof performance is achieved by covering the generating coil, the ring circuit board, and the electrical connection parts of multiple energized light-emitting units with an insulating sleeve, making it easy for extreme wheels to be used in water-filled environments. The wheel hub body clamps and fixes the light-emitting components through the cooperation of the first and second wheel rings with the convex ring, making the installation of the light-emitting components stable. The ring baffle further limits the insulating sleeve, making the installation of the light-emitting components more stable and easy for extreme wheels to use on bumpy roads. The ring clamping plate passes into the ring mating groove, and the first and second sealing rings seal the gap between the first and second outer wheel rings, which facilitates the transparent elastic layer to be combined with the wheel hub body through the potting process to seal the cavity.

[0013] 3. Multiple powered light-emitting units can emit light of different colors. The colorful light not only attracts more attention and enhances the warning effect, but can also be used for personalized expression or to provide directional guidance, further improving the recognition in complex environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a light-emitting limit wheel according to this embodiment.

[0015] Figure 2 This is a schematic diagram of the structure of the luminous hub in this embodiment.

[0016] Figure 3 This is a cross-sectional view of the luminous hub in this embodiment.

[0017] Figure 4 This is a schematic diagram of the structure of the light-emitting component in this embodiment.

[0018] Figure 5 This is a schematic diagram of the light-emitting component in this embodiment without the insulating sleeve.

[0019] Figure 6 This is a schematic diagram of the structure of the first circular shell in this embodiment.

[0020] Figure 7 This is a schematic diagram of the structure of the second circular shell in this embodiment.

[0021] Reference numerals: 1. Illuminated hub; 2. Translucent elastic layer; 3. Hub body; 4. Illuminated component; 5. First circular shell; 6. Second circular shell; 7. First outer ring; 8. First panel; 9. Second outer ring; 10. Second panel; 11. Chamber; 12. Generating coil; 13. Ring circuit board; 14. Powered luminescent unit; 15. Insulating sleeve; 16. Magnetic core; 17. Lamp bead; 18. Pin; 19. Circular part; 20. Cylindrical part; 21. Through hole; 22. Protruding ring; 23. Circular baffle; 24. Semicircular slot; 25. Perforation; 26. Circular retaining plate; 27. Circular mating groove; 28. First sealing groove; 29. ​​Second sealing groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Reference Figure 1-5 A light-emitting limit wheel includes a light-emitting hub 1 and a light-transmitting elastic layer 2. The light-emitting hub 1 includes a hub body 2 and a light-emitting component 3. The hub body 2 includes a first circular shell 4 and a second circular shell 5, which are engaged. The first circular shell 4 includes an annular first outer ring 6 and a first panel 7 that closes the inner hole of the first outer ring 6. Correspondingly, the second circular shell 5 includes an annular second outer ring 8 and a second panel 9 that closes the inner hole of the second outer ring 8. When the first circular shell 4 and the second circular shell 5 are assembled together, the first outer ring 6 and the second outer ring 8 engage with each other, and a sealed cavity 10 is formed between the first panel 7 and the second panel 9. The light-emitting component 3 is installed in the cavity 10. The light-emitting component 3 includes a power-generating coil 11, an annular circuit board 12 coaxial with the power-generating coil 11 and fixed on one side thereto, a plurality of energized light-emitting units 13 evenly arranged on the annular circuit board 12 and electrically connected to the annular circuit board 12, an insulating sleeve 14 providing electrical insulation and protection, and an annular magnetic core 15. Each energized light-emitting unit 13 includes The lamp bead 16 and the pin 17 connecting the lamp bead 16 are soldered to the annular circuit board 12, and the pin 17 has positive and negative poles. The insulating sleeve 14 tightly covers the electrical connection parts of the power generation coil 11, the annular circuit board 12 and the energized light-emitting unit 13. Its shape usually includes a circular part 18 covering the power generation coil 11 and the annular circuit board 12, and a cylindrical part 19 extending and covering the lamp bead 16 and its pin 17. The light-emitting part of the lamp bead 16 is exposed from the cylindrical part 19. The number of cylindrical parts 19 corresponds to the number of energized light-emitting units 13. The insulating sleeve 14 extends from the inner wall of the power generation coil 11.

[0024] Reference Figure 1-4To ensure smooth rotation of the wheel hub 2 and enable magnetic induction power generation, through holes 20 are provided at the center of both the first panel 7 and the second panel 9. Bearings are installed in these through holes 20, typically one bearing in the through hole 20 of the first panel 7 and another bearing in the through hole 20 of the second panel 9. The inner rings of the two bearings are fixed together on a stationary shaft, which is usually connected to the support of the extreme wheel. In this way, the entire wheel hub 2 can rotate freely around the shaft via these two bearings. The magnetic core 15 is fixedly mounted on the shaft, positioned between the two bearings. The power generation coil 11 is fixed inside the cavity 10 of the wheel hub 2, with its central axis coinciding with the central axis of the wheel hub 2, and its inner hole fitting around the magnetic core 15 with a gap. Therefore, when the wheel rotates with the user's movement, the wheel hub 2 carries the power generation coil 11 and rotates around the magnetic core 15 fixed on the shaft. The magnetic core 15 and the power generation coil 11 move relative to each other, cutting magnetic field lines and generating an induced current in the power generation coil 11. This current is supplied through the circuit board to multiple powered light-emitting units 13, causing them to emit light.

[0025] Reference Figure 3-7 To securely encapsulate the light-emitting component 3 within the chamber 10 and protect the LED beads 16, both the first panel 7 and the second panel 9 have raised rings 21 along the edges of their central through holes 20. These raised rings 21 abut inward against the inner wall of the annular portion 18 of the insulating sleeve 14, serving a positioning and clamping function. Furthermore, the first panel 7 also has a protruding annular baffle 22, which abuts against the outer peripheral wall of the annular portion 18 of the insulating sleeve 14, further restricting its radial movement. The top of the annular baffle 22 has semi-circular slots 23 matching the number of cylindrical portions 19 of the insulating sleeve 14, used to avoid and partially enclose these cylindrical portions 19. At the mating edges of the first outer ring 6 and the second outer ring 8, there are through holes 24 in a number matching the number of energized light-emitting units 13. The light-emitting portion of the LED bead 16 passes through the through holes 24, extending beyond the outer circumferential surface of the hub body 2. The inner walls of the first outer ring 6 and the second outer ring 8 abut against the end of the cylindrical portion 19 of the insulating sleeve 14 away from the circular portion 18 near the perforation 24, providing axial support.

[0026] Reference Figure 3 , Figure 6 and Figure 7On the side where the first outer ring 6 and the second outer ring 8 mate, the first outer ring 6 has a protruding annular retaining plate 25, while the mating side of the second outer ring 8 has a matching annular mating groove 26. During assembly, the annular retaining plate 25 is inserted into the annular mating groove 26. To improve sealing, a first bevel angle is provided at the corner of the annular retaining plate 25 away from the first outer ring 6, forming a first sealing groove 27 with the corresponding corner of the annular mating groove 26, and a first sealing ring is placed in the groove; a second bevel angle is provided at the corner of the second outer ring 8 corresponding to the corner formed by the annular retaining plate 25 and the side wall of the first outer ring 6, forming a second sealing groove 28 with the corner formed by the first outer ring 6 and the annular retaining plate 25, and a second sealing ring is placed in the groove. This double sealing design effectively prevents moisture and dust from entering the chamber 10.

[0027] Reference Figure 1 The light-transmitting elastic layer 2 is coated and fixed to the entire outer circumference of the assembled wheel hub body 2 using a casting process. The light-transmitting elastic layer 2 is made of transparent or semi-transparent polyurethane material. This light-transmitting elastic layer 2 completely covers the light-emitting part of the LED bead 16 that passes through the perforation 24, allowing light to pass through while providing necessary grip and cushioning. Furthermore, multiple electrically powered light-emitting units 13 are designed to emit light of different colors to enhance visual effects, warning functions, or personalized expression. In this way, when the wheel rotates, the built-in power generation mechanism continuously generates electricity to drive the LED bead 16 to actively emit bright and colorful light, without the need for an external power source or reliance on ambient light. This significantly improves the visibility and safety of the extreme wheel in dark environments, while also ensuring a stable structure, reliable sealing, and adaptability to bumpy roads and wading environments.

[0028] The implementation principle of the luminous extreme wheel of this application is as follows: When the wheel rotates, the magnetic core 15 rotates relative to the wheel hub body 2 through an electromagnetic induction power generation device composed of a built-in power generation coil 11 and a magnetic core 15, cutting the magnetic field lines and generating an induced current in the coil, which provides power to the light-emitting component 3. It does not require an external power source or rely on ambient light to "charge". It actively emits bright light through the energized light-emitting unit 13, instead of relying on external light source reflection or slowly releasing the stored light energy. This solves the problems of existing reflective strips relying on external light source passive reflection and the low brightness, fast decay and short duration of luminous strips. It makes the extreme wheel a conspicuous light source in the dark environment, which greatly increases the possibility of being discovered and identified by vehicle drivers, pedestrians and other road users at a safe distance, and reduces the risk of collision.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A luminous limiting wheel, characterized in that: The device includes a light-emitting hub and a light-transmitting elastic layer. The light-emitting hub comprises a hub body and a light-emitting component. The light-transmitting elastic layer is disposed on the outer periphery of the hub body and covers the hub body. The light-emitting component includes a power-generating coil, a ring circuit board, energized light-emitting units, an insulating sleeve, and a magnetic core. The ring circuit board is coaxially fixed to one side of the power-generating coil and electrically connected to the power-generating coil. Multiple energized light-emitting units are present, each electrically connected to the ring circuit board, and the multiple energized light-emitting units are evenly arranged around the center of the ring circuit board. The insulating sleeve covers the electrical connection parts of the power generation coil, the annular circuit board, and the multiple energized light-emitting units. The hub body has a cavity, the light-emitting components are fixed in the cavity, and the center of the power generation coil is on the same straight line as the center of the hub body. The light-emitting parts of the multiple energized light-emitting units extend out of the outer circumference of the hub body. The light-transmitting elastic layer is disposed on the outer circumference of the hub body and wraps the portions of the multiple energized light-emitting units that extend out of the hub body. The magnetic core is placed in the power generation coil and rotates relative to the magnetic core with the hub body.

2. The luminous limiting wheel according to claim 1, characterized in that: Each of the energized light-emitting units includes an LED and a pin connecting the LED. The pin is soldered to the annular circuit board. The insulating sleeve includes a circular portion covering the power-generating coil and the annular circuit board, and a cylindrical portion covering the pin and the bottom of the LED. The number of cylindrical portions corresponds to the number of energized light-emitting units. The insulating sleeve extends from the inner wall of the power-generating coil.

3. The luminous limiting wheel according to claim 2, characterized in that: The hub body includes a first circular shell and a second circular shell. The first circular shell includes a first outer ring and a first panel integrally disposed inside the first outer ring, sealing its inner hole. The first circular shell includes a second outer ring and a second panel integrally disposed inside the second outer ring, sealing its inner hole. The first outer ring and the second outer ring are mated together, and the cavity is formed between the first panel and the second panel. Both the first panel and the second panel have a through hole at their center, which corresponds to the center of the coil. Both the first panel and the second panel have a protruding ring at the edge of the through hole. The protruding rings of the first panel and the second panel abut against the inner wall of the circular portion of the insulating sleeve. The protruding ring of the second panel abuts against the protrusion on the other side of the insulating sleeve. A through hole is formed at the joint of the first outer ring and the second outer ring for the LED to pass through. The number of through holes corresponds to the number of energized light-emitting units. The inner walls of the first outer ring and the second outer ring abut against the end of the cylindrical portion of the insulating sleeve away from the circular portion.

4. A light-emitting limit wheel according to claim 3, characterized in that: The first panel has a protruding annular baffle that abuts against the outer peripheral wall of the circular part of the insulating sleeve, and a semi-circular slot is formed on its top. The number of semi-circular slots matches the number of cylindrical parts of the insulating sleeve, and the cylindrical parts of the insulating sleeve are avoided by the semi-circular slots.

5. A light-emitting limit wheel according to claim 3, characterized in that: An annular retaining plate protrudes from one side of the first outer ring and the second outer ring, and an annular mating groove matching the annular retaining plate is provided on the other side of the second outer ring and the first outer ring. When the first outer ring and the second outer ring are mated, the annular retaining plate passes into the annular mating groove. A first chamfer is provided on the side of the annular retaining plate away from the first outer ring, corresponding to the corner of the annular mating groove. A first sealing groove is formed between the corner of the annular mating groove and the first chamfer, and a first sealing ring is built into the first sealing groove. A second chamfer is provided on the second outer ring corresponding to the corner formed by the annular retaining plate and the side wall of the first outer ring. A second sealing groove is formed between the corner formed by the first outer ring and the annular retaining plate and the second chamfer, and a second sealing ring is built into the second sealing groove.

6. A light-emitting limit wheel according to claim 1, characterized in that: The light emitted by the multiple electrically powered light-emitting units is of different colors.

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