A wheel hub lamp with uniform light transmission

Abstract

This utility model discloses a hub lamp with uniform light transmission, including a hub lamp body. The hub lamp body includes a shell, a micro generator located inside the shell, a light-emitting unit at the output end of the micro generator, and an outer cover covering the light-emitting unit. The light-emitting unit includes: a plate fixed to the output end of the micro generator, on which several circumferentially distributed LED beads are mounted; a refractive plate adhered to the outward side of the plate; and a refractive ring installed on the outward side of the plate, used to block the LED beads and refract the light generated by the LED beads onto the refractive plate. Compared with the prior art, the advantage of this utility model is that through the two-stage refraction and scattering of the refractive ring and the refractive plate, the light beam is already a large-range beam with a relatively uniform intensity distribution when it reaches the final diffuser plate. The diffuser plate performs a final scattering and mixing, and the light emitted from the light-transmitting layer is uniform and soft.

Description

Technical Field

[0001] This utility model relates to the field of hub lamp technology, and in particular to a hub lamp with uniform light transmission. Background Technology

[0002] The purpose of wheel hub lights is to emit light from rotating wheels at night or in dimly lit environments. The illuminated wheels make the side profile of the vehicle more visible at night, allowing other road users to notice the vehicle's presence earlier, thus potentially serving as a passive safety warning.

[0003] The patent application CN205588879U, entitled "A Type of Automotive Wheel Hub Light with Power Generation," proposes an automatically illuminating wheel hub light. However, overly dazzling light can distract other drivers or pedestrians, increasing risks. Therefore, wheel hub lights generally need to be designed for uniform light transmission to avoid glare. Current wheel hub lights typically use LEDs to emit light. Relying solely on the LEDs themselves makes it difficult to achieve uniform light. Uniform light requires light-guiding materials and structures. Many inexpensive wheel hub lights simply have exposed LED beads attached inside the light source or use a transparent shell without any light-guiding structure. Furthermore, even if the LED is covered with a frosted or diffuser coating, although this softens and evens the light, the limited size of the wheel hub light causes the LED to be close to the light-transmitting shell, resulting in uneven light distribution. An improvement is proposed to address this issue. Utility Model Content

[0004] In view of the problems mentioned above, the technical problem to be solved by this utility model is to provide a hub lamp with uniform light transmission.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a hub lamp with uniform light transmission, comprising a hub lamp body, the hub lamp body including a shell, a micro generator located inside the shell, a light-emitting unit at the output end of the micro generator, and an outer cover covering the light-emitting unit, the light-emitting unit including: The plate is fixed to the output end of the micro generator, and several LED beads are installed on the plate in a circular arrangement. The refractive plate is adhered to the outward-facing side of the plate layer; The refraction ring, installed on the outward-facing side of the plate, is used to shield the LED beads and refract the light generated by the LED beads onto the refraction plate; The diffuser plate, fixed to the outward-facing side of the refraction ring, is used to scatter the light refracted by the refraction plate onto the outer cover.

[0006] A further preferred embodiment of this utility model is: a counterweight is fixed on the inward side of the plate layer, the plate layer and the outer cover are fixedly arranged, and there is a space between the plate layer and the outer cover for light refraction and scattering; The inner end of the outer shell has an inner convex layer that protrudes inward. Inside the outer shell, there is a concave layer arranged in a ring along the inner convex layer. The counterweight is located in the concave layer. The outer end of the inner convex layer has a fixing plate. The micro generator is located on the inner side of the inner convex layer. The fixing plate has bolts that penetrate the inner convex layer and fix the micro generator.

[0007] A further preferred embodiment of this utility model is: the outer side of the outer shell has a buckle plate that engages with the hub axis.

[0008] A further preferred embodiment of this utility model is: a light-transmitting hole is provided through the end face of the outer cover, a light-transmitting layer is embedded in the light-transmitting hole, and the light-transmitting hole is located on the extension line of the end face of the diffuser plate.

[0009] A further preferred embodiment of this utility model is: the plate is made of a heat-conducting metal, and the plate has holes corresponding to the number of LED beads. Several LED beads are respectively embedded in their respective holes, and the inward-facing ends of several LED beads are electrically connected to a micro generator.

[0010] A further preferred embodiment of this utility model is: a contact ring layer corresponding to the number of LED beads is integrally formed on the outward side of the plate layer, the axis of the contact ring layer coincides with the axis of the hole in the plate layer, and the contact ring layer is attached to the outside of the corresponding LED bead to transfer the heat generated by the LED bead.

[0011] A further preferred embodiment of this utility model is as follows: a number of LED beads are evenly distributed in a circle and are all close to the edge of the plate. The refractive plate and the refractive ring are both set to be opaque. The refractive ring is fixed on the outward side of the plate and fits against the edge of the plate. The refractive ring is set at an angle to block the extension line of the LED bead axis.

[0012] A further preferred embodiment of this utility model is that the side of the refractive plate and refractive ring used for refraction is a textured mirror surface.

[0013] A further preferred embodiment of this utility model is that the diffuser plate is transparent and has a gap with the refracting plate.

[0014] A further preferred embodiment of this utility model is that the diffuser plate is made of plastic and has tiny scattering points inside that scatter and mix light.

[0015] Compared with the prior art, the advantages of this utility model are: 1. Through two-stage refraction and scattering by the refraction ring and the refraction plate, the concentrated and dazzling point light emitted by the LED beads is dispersed and mixed. When the light reaches the final diffuser plate, it is already a beam with a large range and relatively uniform intensity distribution. The diffuser plate performs a final scattering and mixing, and the light emitted from the light-transmitting layer is uniform and soft. At night, the wheel hub lights look more like a uniformly luminous sign or halo, avoiding the dazzling interference that strong light points may cause to others, and improving driving safety and aesthetics.

[0016] 2. The plate is made of thermally conductive metal and is designed with a contact ring, which greatly increases the contact area with the LED beads and can quickly conduct the heat generated by the LED beads. During vehicle operation, the airflow can effectively carry away the heat on the plate.

[0017] 3. By using counterweights, the outer shell and micro generator rotate when the hub rotates, while the light-emitting unit and outer cover remain stationary. The micro generator can stably cut magnetic field lines to generate electricity. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a half-section exploded view of the outer shell of this utility model; Figure 3 This is an exploded view of the light-emitting unit of this utility model; Figure 4 This is a schematic diagram of the main structure of the light-emitting unit of this utility model; Figure 5 This utility model Figure 4 A cross-sectional view along the AA direction; Figure 6 This utility model Figure 5 A magnified schematic diagram of part B.

[0020] In the diagram: 1. Hub light body; 2. Outer shell; 21. Buckle plate; 22. Convex inner layer; 23. Recessed inner layer; 3. Outer cover; 31. Light-transmitting hole; 32. Light-transmitting layer; 4. Micro generator; 41. Fixing plate; 5. Counterweight; 6. Light-emitting unit; 61. Plate layer; 62. Lamp bead; 621. Contact ring layer; 63. Refraction plate; 64. Refraction ring; 65. Diffuser plate. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] This embodiment mainly describes a hub lamp with uniform light transmission. Please refer to [link / reference]. Figures 1-6 Specifically, even if an LED light is covered with a frosted or diffused coating, although the light can be softened and made more uniform, the limited size of the hub light results in the LED light being close to the light-transmitting shell, leading to uneven light distribution. Even if the light is made more uniform to some extent, halos still exist; areas closer to the LED light are brighter, while areas farther away are darker, failing to achieve uniform light transmission. Therefore, a hub light with uniform light transmission is proposed, comprising a hub light body 1. The hub light body 1 includes a shell 2, a micro-generator 4 located inside the shell 2, a light-emitting unit 6 at the output end of the micro-generator 4, and an outer cover 3 covering the light-emitting unit 6. The light-emitting unit 6 includes: The plate 61 is fixed to the output end of the micro generator 4, and several LED beads 62 are installed on the plate 61 in a circular arrangement. The refractive plate 63 is adhered to the outward-facing side of the plate layer 61; A refraction ring 64 is installed on the outward side of the plate 61 to block the lamp bead 62 and refract the light generated by the lamp bead 62 onto the refraction plate 63. A diffuser plate 65 is fixed to the outward-facing side of the refraction ring 64 and is used to scatter the light refracted by the refraction plate 63 onto the outer cover 3.

[0024] Specifically, both the outer casing 2 and the micro-generator 4 located inside the outer casing 2 are existing technologies. When the vehicle moves, the wheel hub rotates, causing the outer casing 2 to drive the micro-generator 4 to rotate. The light-emitting unit 6 and the outer cover 3 do not rotate under the action of the counterweight 5. Therefore, the micro-generator 4 cuts the magnetic induction lines to generate electrical energy, which illuminates the light-emitting unit 6. The light is prevented from directly shining onto the diffuser plate 65 by the refraction plate 63 and the refraction ring 64. Instead, the light is refracted and diffused multiple times before shining onto the diffuser plate 65. This allows the relatively dispersed light after refraction to shine onto the diffuser plate 65 over a large area. The range of light moving towards the diffuser plate 65 is large and relatively uniform, resulting in uniform light emitted by the diffuser plate 65. It should be noted that the refraction plate 63 is flat, so the light moving to the diffuser plate 65 is set at equal intervals to avoid producing light spots with different brightness.

[0025] like Figure 2 As shown, a counterweight 5 is fixed on the inward side of the plate 61, the plate 61 and the outer cover 3 are fixedly arranged, and there is a space between the plate 61 and the outer cover 3 for light refraction and scattering. The inner end of the outer shell 2 has an inner protrusion layer 22 that protrudes into the inner shell 2. The inner shell 2 has an inner recessed layer 23 arranged in a ring along the inner protrusion layer 22. The counterweight 5 is located in the inner recessed layer 23. The outer end of the inner protrusion layer 22 has a fixing plate 41. The micro generator 4 is located on the inner side of the inner protrusion layer 22. The fixing plate 41 has bolts that pass through the inner protrusion layer 22 and fix the micro generator 4.

[0026] Specifically, the counterweight 5 is fixed to the plate 61. When the hub rotates, the micro generator 4 also rotates. The output end of the micro generator 4 is prevented from rotating under the action of the counterweight 5, thereby generating electricity. The micro generator 4 is installed inside the outer shell 2 and is in a fixed state. Therefore, when the outer shell 2 is fastened to the hub, the hub rotates and both the outer shell 2 and the micro generator 4 rotate.

[0027] like Figure 2 As shown, the outer side of the outer shell 2 has a buckle plate 21 that engages with the hub axis. The buckle plate 21 is made of plastic or metal and has an elastic function. When pressed inward, it can be engaged and fixed with the hub. It should be noted that the buckle plate 21 on the outer side of the outer shell 2 is existing technology.

[0028] like Figure 2 As shown, a light-transmitting hole 31 is passed through the end face of the outer cover 3, and a light-transmitting layer 32 is embedded in the light-transmitting hole 31. The light-transmitting hole 31 is located on the extension line of the end face of the diffuser plate 65.

[0029] Specifically, if the outer cover 3 is fixed to the plate 61, the outer cover 3 will not rotate with the hub. Different marks can be set on the outer side of the outer cover 3 to keep the marks stable and visually apparent. The light-transmitting hole 31 is used to transmit the light from the diffuser plate 65. The transmitted light is evenly distributed. The light-transmitting layer 32 can be set with different marks to make different marks glow.

[0030] like Figure 3 As shown, the plate 61 is made of a heat-conducting metal. The plate 61 has holes corresponding to the number of LED beads 62. Several LED beads 62 are respectively embedded in their respective holes, and the inward-facing ends of the LED beads 62 are electrically connected to the micro generator 4.

[0031] Specifically, the LED beads 62 are embedded in their respective holes. The heat generated by the LED beads 62 can be transferred to the plate 61. Under the action of the airflow generated by the vehicle movement, the contact area with the plate 61 is large, which can greatly remove the heat on the plate 61. It should be noted that when the micro generator 4 cuts the magnetic induction lines, the generated electrical energy is used to light up the LED beads 62. The connection between the LED beads 62 and the micro generator 4 is existing technology.

[0032] like Figure 6 As shown, on the outward side of the plate 61, there is an integral contact ring layer 621 corresponding to the number of lamp beads 62. The axis of the contact ring layer 621 coincides with the axis of the hole in the plate 61. The contact ring layer 621 is attached to the outside of the corresponding lamp bead 62 to transfer the heat generated by the lamp bead 62.

[0033] Specifically, by increasing the contact area with the LED bead 62 through the contact ring 621, heat can be transferred over a large area, while the contact ring 621 also provides protection for the LED bead 62.

[0034] like Figure 3 As shown, several LED beads 62 are evenly distributed in a circle and are all close to the edge of the plate 61. The refractive plate 63 and the refractive ring 64 are both opaque. The refractive ring 64 is fixed on the outward side of the plate 61 and fits against the edge of the plate 61. The refractive ring 64 is inclined and blocks the extension line of the axis of the LED beads 62.

[0035] Specifically, several LED beads 62 are positioned near the edge of the plate 61. A refraction ring 64 blocks the outward-facing light from the LED beads 62, preventing direct light from hitting the diffuser plate 65. This is to avoid uneven light distribution, where the diffuser plate 65 near the LED beads 62 is brighter than the surrounding areas. The light is refracted through the refraction plate 63 and the refraction ring 64, ensuring that the light reaches the diffuser plate 65 from the same position, thus achieving uniform light distribution.

[0036] The refractive plate 63 and the refractive ring 64 have textured mirror surfaces on their refraction surfaces. Specifically, both the mirror surfaces of the refractive plate 63 and the refractive ring 64 have scattering particles, which scatter light to a certain extent during the refraction process, randomly scattering the light in all directions. The main direction is that the light is scattered from the refractive ring 64 onto the refractive plate 63.

[0037] The diffuser plate 65 is transparent and has a gap with the refracting plate 63, so that the light from the refracting plate 63 moves to the diffuser plate 65. The light emitted from the light-emitting surface of the diffuser plate 65 is no longer a concentrated beam, but a soft light that is scattered and mixed evenly.

[0038] The diffuser plate 65 is made of plastic and has tiny scattering points inside that disperse and mix light, allowing light to pass through the diffuser plate 65 and further dispersing the already dispersed light, making the light softer.

[0039] Working principle: The hub lamp body 1 is fastened to the hub through the outer buckle 21. During the rotation of the wheel, the micro generator 4 and the outer shell 2 rotate with the hub. The light-emitting unit 6 at the output end of the micro generator 4 and the outer cover 3 remain stable under the action of the counterweight 5. Therefore, the stator and rotor of the micro generator 4 rotate, generating electricity to light up the lamp 62. It should be noted that the micro generator 4 lighting up the lamp 62 during the rotation of the wheel is existing technology.

[0040] When the LED 62 emits light, it generates heat. Since the plate layer 61 and the contact ring layer 621 can absorb and dissipate the generated heat, airflow will be generated during vehicle movement to carry away the heat to a certain extent, thus preventing the LED 62 from overheating and being damaged.

[0041] When the LED 62 emits light, the light is transmitted to the refraction ring 64. Since the refraction ring 64 can refract and disperse the light, it can refract the light over a wide area to the refraction plate 63. After being refracted again by the refraction plate 63, the already dispersed light is refracted and dispersed again, allowing it to illuminate the diffuser plate 65 relatively evenly and over a large area. The diffuser plate 65 disperses and mixes the light, making the light passing through the light-transmitting layer 32 more uniform and softer. It should be noted that the refraction ring 64 blocks the direct light from the LED 62, preventing the light from passing directly outward and causing uneven light. The light is first refracted and dispersed by the refraction ring 64, and then the light is refracted and dispersed a second time by the refraction plate 63, further increasing the dispersion range of the light. This makes the light illuminating the diffuser plate 65 as soft as possible. Finally, the diffuser plate 65 disperses and mixes the light again, preventing the light from producing dazzling light.

[0042] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The above provides a detailed description of a hub lamp with uniform light transmittance provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The above description of the embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hub lamp with uniform light transmittance, comprising a hub lamp body, the hub lamp body including a housing, a micro generator located inside the housing, a light-emitting unit at the output end of the micro generator, and an outer cover covering the light-emitting unit, characterized in that, The light-emitting unit includes: The plate is fixed to the output end of the micro generator, and several LED beads are installed on the plate in a circular arrangement. The refractive plate is adhered to the outward-facing side of the plate layer; The refraction ring, installed on the outward-facing side of the plate, is used to shield the LED beads and refract the light generated by the LED beads onto the refraction plate; The diffuser plate, fixed to the outward-facing side of the refraction ring, is used to scatter the light refracted by the refraction plate onto the outer cover.

2. The wheel lamp having light transmission uniformity according to claim 1, characterized by, A counterweight is fixed to the inward side of the plate, the plate and the outer cover are fixedly connected, and there is space between the plate and the outer cover for light refraction and scattering. The inner end of the outer shell has an inner convex layer that protrudes inward. Inside the outer shell, there is a concave layer arranged in a ring along the inner convex layer. The counterweight is located in the concave layer. The outer end of the inner convex layer has a fixing plate. The micro generator is located on the inner side of the inner convex layer. The fixing plate has bolts that penetrate the inner convex layer and fix the micro generator.

3. The wheel lamp having light transmission uniformity according to claim 1, characterized by, The outer side of the housing has a snap plate that engages with the hub axis.

4. The wheel lamp having light transmission uniformity according to claim 1, characterized by, The outer cover has a light-transmitting hole through its end face, and a light-transmitting layer is embedded in the light-transmitting hole. The light-transmitting hole is located on the extension line of the diffuser plate end face.

5. The wheel lamp having light transmission uniformity according to claim 1, characterized by, The plate is made of a heat-conducting metal and has holes corresponding to the number of LEDs. Several LEDs are embedded in their respective holes, and the inward-facing ends of the LEDs are electrically connected to a micro generator.

6. The wheel lamp having light transmission uniformity according to claim 5, wherein On the outward-facing side of the plate, there is an integral contact ring layer corresponding to the number of LED beads. The axis of the contact ring layer coincides with the axis of the hole in the plate layer. The contact ring layer is attached to the outside of the corresponding LED bead to transfer the heat generated by the LED bead.

7. The wheel lamp having light transmission uniformity according to claim 5, wherein Several LED beads are evenly distributed in a circle and are close to the edge of the plate. The refractive plate and the refractive ring are both opaque. The refractive ring is fixed on the outward side of the plate and fits against the edge of the plate. The refractive ring is tilted to block the extension line of the LED bead axis.

8. The wheel lamp having light transmission uniformity according to claim 1, wherein The side of the refractive plate and refractive ring used for refraction is a textured mirror surface.

9. The wheel lamp having light transmission uniformity according to claim 1, wherein The diffuser plate is transparent and has a gap between it and the refractive plate.

10. The wheel lamp according to claim 1, wherein The diffuser plate is made of plastic and has tiny scattering points inside that disperse and mix light.

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