A luminous tire structure

Abstract

This utility model belongs to the field of engineering tire technology and provides a luminous tire structure, including a tread, a shoulder, and a sidewall. A set of grooves is formed on the tread, evenly spaced circumferentially, with each end extending to the two shoulders. A connecting layer is coated on the sidewall, arranged circumferentially, and coated with a fluorescent coating. A transparent protective coating is then applied to the fluorescent coating. This luminous tire structure, with the connecting layer, fluorescent coating, and transparent protective coating sequentially coated on the sidewall, provides excellent protection for the fluorescent coating, reducing environmental impact and extending its lifespan. Through-holes facilitate heat dissipation to both sides of the tire, improving heat dissipation efficiency. Z-shaped grooves are formed on the tread, with a protrusion in the central area of ​​each groove, preventing stones from getting stuck in the Z-shaped central area while maintaining grip.

Description

Technical Field

[0001] This utility model belongs to the field of engineering tire technology, specifically relating to a luminous tire structure. Background Technology

[0002] With the intelligent and personalized development of the automotive industry, the function of tires has extended from "basic load-bearing" to "intelligent interaction." For example, functional tires integrating tire pressure monitoring, temperature sensing, and self-healing technologies are gradually becoming more common. Among them, luminous tires, as an emerging functional design, can significantly improve nighttime driving safety by giving tires the ability to actively emit light (such as outline visualization and enhanced warning signs), and even support signal transmission in special scenarios (such as operational markings for construction vehicles). Therefore, they have become an important direction for tire technology innovation.

[0003] In existing technologies, luminescent tires are mainly achieved by coating the tire sidewall with phosphors or fluorescent paints, which then use ambient light to excite the fluorescent material to emit light at night. The core principle is that after the fluorescent material absorbs short-wavelength photons, electrons transition from the ground state to the excited state, and then release long-wavelength photons through radiative transitions, thus realizing the "light storage-light emission" process.

[0004] However, directly coating fluorescent materials onto the tire sidewall makes them susceptible to external environmental influences, especially for engineering vehicle tires. Long-term exposure to ultraviolet rays, oxygen, ozone, and high temperatures (the sidewall temperature of tires can reach 80-120℃ during operation) causes the luminescence intensity to decay rapidly, the fluorescent material to easily fall off, and the lifespan to be short, failing to meet the requirements for long-term use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a light-emitting tire structure that can solve the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a luminous tire structure, comprising a tread, a shoulder, and a sidewall;

[0007] A set of grooves is provided on the tire surface. The set of grooves is evenly spaced along the circumference, and the two ends of the grooves extend to the tire shoulders on both sides.

[0008] A connecting layer is coated on the tire sidewall, the connecting layer is arranged circumferentially along the tire sidewall, a fluorescent coating is coated on the connecting layer, and a transparent protective coating is coated on the fluorescent coating.

[0009] Preferably, the connecting layer is any one of a silane coupling agent layer, a rubber base layer, or a polyurethane base coating layer.

[0010] Preferably, the fluorescent coating is an inorganic fluorescent material layer.

[0011] Preferably, the transparent protective coating is a polyurethane varnish layer.

[0012] Preferably, the thickness of the connecting layer is 5-10 μm.

[0013] Preferably, the thickness of the fluorescent coating is 50-90 μm.

[0014] Preferably, the thickness of the transparent protective coating is 10-30 μm.

[0015] Preferably, the groove is Z-shaped.

[0016] Preferably, the tread is provided with a through hole, which extends from one inner wall of the groove to the other inner wall.

[0017] Preferably, the bottom surface of the groove in the middle region is provided with a protrusion, and the cross-section of the protrusion is an isosceles trapezoidal structure.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The present invention provides a luminescent tire structure, wherein a connecting layer, a fluorescent coating, and a transparent protective coating are sequentially coated on the tire sidewall. The transparent protective coating can provide good protection for the fluorescent coating, reduce the impact of the environment on the fluorescent coating, and extend the service life of the fluorescent coating.

[0020] 2. The luminous tire structure provided by this utility model, by setting through holes, helps to dissipate heat to both sides of the tire and improves the tire's heat dissipation efficiency.

[0021] 3. The present invention provides a luminous tire structure with a Z-shaped groove on the tire surface and a protrusion in the middle area of ​​the groove. While ensuring grip, it can prevent stones from getting stuck in the middle area of ​​the Z-shape. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a luminous tire structure provided for an embodiment of this utility model;

[0023] Figure 2 A top view schematic diagram of the fluorescent coating and related parts of a luminescent tire structure provided for an embodiment of this utility model;

[0024] Figure 3 A top view of a luminous tire structure provided in an embodiment of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the protrusion and related parts of a luminous tire structure provided for an embodiment of the present utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Tire tread;

[0028] 2. Tire shoulder;

[0029] 3. Side of the tire;

[0030] 4. Groove;

[0031] 5. Connecting layer;

[0032] 6. Fluorescent coating;

[0033] 7. Transparent protective coating;

[0034] 8. Through hole;

[0035] 9. Protrusion. Detailed Implementation

[0036] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0037] This embodiment provides a luminous tire structure, including a tread 1, a shoulder 2, and a sidewall 3.

[0038] Among them, a set of grooves 4 are provided on the tread 1. The set of grooves 4 are evenly spaced along the circumference, and the two ends of the grooves 4 extend to the two tire shoulders 2 on both sides respectively.

[0039] For example, see Figure 1 The tread 1 is the outermost part of the tire, which is in direct contact with the ground and provides traction and grip. The tire shoulders 2 are located on both sides of the tread 1. A set of grooves 4 are formed on the tread 1. The grooves 4 are evenly spaced around the circumference and extend to the tire shoulders 2 on both sides.

[0040] A connecting layer 5 is coated on the sidewall 3. The connecting layer 5 is arranged circumferentially along the sidewall 3. A fluorescent coating 6 is coated on the connecting layer 5. A transparent protective coating 7 is coated on the fluorescent coating 6.

[0041] For example, see Figure 1-2 The sidewall 3 is used to connect the tire shoulder 2 and the rim, protecting the inner structure of the tire. The sidewall 3 is coated with a connecting layer 5, a fluorescent coating 6, and a transparent protective coating 7 in sequence. The connecting layer 5, the fluorescent coating 6, and the transparent protective coating 7 are all arc-shaped structures, and the connecting layer 5, the fluorescent coating 6, and the transparent protective coating 7 are all coaxial with the sidewall 3.

[0042] The connecting layer 5 can be any one of a silane coupling agent layer, a rubber primer layer, or a polyurethane primer layer. The connecting layer 5 can improve surface polarity, effectively solve the interfacial incompatibility problem between the tire and the fluorescent coating 6, and significantly improve adhesion, durability, and long-term reliability.

[0043] The fluorescent coating 6 can be an inorganic fluorescent material layer. For example, a YAG:Ce³⁺ nano-fluorescent powder layer, which has excellent weather resistance, high temperature resistance, high chemical stability, and long service life.

[0044] The transparent protective coating 7 can be a polyurethane varnish layer. The polyurethane varnish layer has the characteristics of high transmittance (does not block fluorescent light absorption / emission), high elasticity, good weather resistance, and moderate surface hardness. It can play a good protective role for the fluorescent coating 6 without affecting the luminescence effect of the fluorescent coating 6.

[0045] Based on the above structure, the luminescent tire structure provided in this embodiment has a connecting layer 5, a fluorescent coating 6, and a transparent protective coating 7 sequentially coated on the tire sidewall 3. The transparent protective coating 7 can provide good protection for the fluorescent coating 6, reduce the impact of the environment on the fluorescent coating 6, and extend the service life of the fluorescent coating 6.

[0046] In the technical solution provided in this embodiment, the groove 4 is Z-shaped;

[0047] The tread 1 is provided with a through hole 8, which extends from the inner wall of one side of the corner of the groove 4 to the inner wall of the other side;

[0048] For example, see Figure 3 The groove 4 has a Z-shaped structure, meaning it consists of three consecutive straight grooves. This design prevents larger stones from getting stuck in the groove 4 and affecting the tire's normal operation. The tread 1 has through holes 8, with two through holes 8 corresponding to each groove 4. These two through holes 8 are coaxial. The left through hole 8 is located between the left straight groove and the middle straight groove, extending from the inner wall of the left straight groove to the inner wall of the middle straight groove. The right through hole 8 is located between the middle straight groove and the right straight groove, extending from the inner wall of the middle straight groove to the inner wall of the right straight groove. The through holes 8 help dissipate heat from the middle straight groove to both sides of the tire, preventing heat from accumulating in the middle area and improving tire cooling efficiency.

[0049] In the technical solution provided in this embodiment, a protrusion 9 is provided on the bottom surface of the middle area of ​​the groove 4, and the cross section of the protrusion 9 is an isosceles trapezoidal structure;

[0050] For example, see Figure 4A protrusion 9 is fixedly provided inside the central straight groove, and the protrusion 9 can be an integral structure with the tread 1. The protrusion 9 can prevent small stones or mud from getting stuck in the central straight groove and being unable to detach. The cross-section of the protrusion 9 is an isosceles trapezoidal structure, and the long side of the isosceles trapezoidal structure fits against the tread 1, which helps small stones or mud to quickly detach from the central straight groove.

[0051] In some embodiments, the protrusion 9 can also be a smooth curved surface structure. This helps small stones or dirt to quickly detach from the central straight groove.

[0052] In the technical solution provided in this embodiment, the additional coating weight may cause dynamic balance deviation, affecting driving stability. To avoid the above problem, the total thickness of the coating should be controlled to not exceed 130μm, and a dynamic balancing machine should be used for correction after coating. For example, the thickness of the connecting layer 5 can be 5-10μm, the thickness of the fluorescent coating 6 can be 50-90μm, and the thickness of the transparent protective coating 7 can be 10-30μm.

[0053] Finally, in the technical solution provided in this embodiment, the coating process of the connecting layer 5, the fluorescent coating 6, and the transparent protective coating 7 can include the following process: pretreatment - coating - posttreatment.

[0054] 1. Preprocessing:

[0055] Tire rubber surfaces contaminated with vulcanizing agent residues (such as sulfur compounds) and mold release agents require thorough cleaning and activation.

[0056] S1: Degreasing: Wipe the surface with a solvent (such as acetone or alcohol) to remove oil stains;

[0057] S2: Roughening: Use 320-400 grit sandpaper to roughen the surface;

[0058] S3: Primer treatment: Apply bonding layer.

[0059] 2. Coating:

[0060] The fluorescent coating is applied by airless spraying at a pressure of 0.3-0.5 MPa and a nozzle orifice diameter of 0.15-0.2 mm. It is then cured at room temperature (25℃×24h) or baked at low temperature (60℃×2h) to avoid rubber aging caused by high temperature.

[0061] 3. Post-processing:

[0062] The transparent protective coating is applied by electrostatic spraying and then cured at room temperature (25℃×4h).

[0063] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0066] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A luminous tire structure, characterized in that, Including the tread (1), shoulder (2), and sidewall (3); A set of grooves (4) are provided on the tread (1). The set of grooves (4) are evenly spaced along the circumference, and the two ends of the grooves (4) extend to the two sides of the tire shoulders (2). A connecting layer (5) is coated on the sidewall (3), the connecting layer (5) is arranged circumferentially along the sidewall (3), a fluorescent coating (6) is coated on the connecting layer (5), and a transparent protective coating (7) is coated on the fluorescent coating (6).

2. The luminous tire structure according to claim 1, characterized in that, The connecting layer (5) is any one of the following: silane coupling agent layer, rubber base layer, and polyurethane base coating layer.

3. The luminous tire structure according to claim 1, characterized in that, The fluorescent coating (6) is an inorganic fluorescent material layer.

4. The luminous tire structure according to claim 1, characterized in that, The transparent protective coating (7) is a polyurethane varnish layer.

5. The luminous tire structure according to claim 1, characterized in that, The thickness of the connecting layer (5) is 5-10 μm.

6. The luminous tire structure according to claim 1, characterized in that, The thickness of the fluorescent coating (6) is 50-90 μm.

7. The luminous tire structure according to claim 1, characterized in that, The thickness of the transparent protective coating (7) is 10-30 μm.

8. The luminous tire structure according to claim 1, characterized in that, The groove (4) is Z-shaped.

9. A luminous tire structure according to claim 8, characterized in that, The tread (1) is provided with a through hole (8), which extends from one inner wall of the groove (4) to the other inner wall.

10. A luminous tire structure according to claim 1, characterized in that, The bottom surface of the groove (4) in the middle area is provided with a protrusion (9), and the cross section of the protrusion (9) is an isosceles trapezoidal structure.

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