Energy-saving electric vehicle tire

Abstract

The utility model provides an energy-saving electric vehicle tire, which relates to the technical field of tires, and comprises a tire crown and a tire shoulder, the upper surface of the tire crown is a driving surface, the widest part of the tire shoulder is the tire width, and the ratio of the driving surface to the tire width is 80-87%; at least one circumferential line is arranged on the driving surface, and at least one transverse line is arranged in a manner of intersecting with the circumferential line. The tire has the beneficial effects that the proportion of the running surface to the tire width is 80%-87% and is larger than that of most tires in the market, the contact area of the tire and the ground is larger under the condition that the tire width is the same, so that the stability of an electric vehicle is better, the circumferential lines are arranged, the drainage of the electric vehicle is facilitated, and the service life of the electric vehicle is prolonged. And if the arranged circumferential grains are too dense, the tire is easy to deform due to the fact that the tire crown bears too large inflation pressure inside the tire after the tire is inflated, and the circumferential grains with different widths are arranged at the center of the tire crown, so that the strength of the center of the tire crown is ensured, and the comprehensive drainage effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to an energy-saving tire for an electric vehicle. Background Art

[0002] Electric vehicles are energy-saving and environmentally friendly, so they are becoming the first choice for more and more people to carry goods for short-distance commuting. Since electric vehicles need to be charged before they can be used, and the charging time is long, designers will try to reduce the weight of electric vehicles as much as possible when designing electric vehicles. Therefore, the body of electric vehicles is lighter. Therefore, electric vehicles need tires with better stability to ensure the safety of electric vehicle use.

[0003] The technical content disclosed in the Chinese patent document (Announcement No.: CN217227216U, Patent Name: A tire pattern and tire for electric vehicles) is: The tire pattern of the electric vehicle is a symmetrical pattern structure, which at least includes: circumferential pattern blocks and longitudinal main grooves extending along the tread, wherein the sea-land ratio of the circumferential pattern blocks is 69-71%, which ensures the wear performance and improves the tire mileage, and includes shoulder pattern blocks 1 located at the shoulders and middle pattern blocks 5 located in the middle of the tread; the sidewall inclination angle of the longitudinal main groove is 8-12°, and the depth is less than 6.5mm. In order to ensure the handling performance and drainage performance of the tire, the longitudinal main groove includes a central main groove 8 located in the center of the tread, a first main groove 4 located on the left side of the central main groove 8, and a second main groove 9 located on the right side of the central main groove 8, wherein the width of the first main groove 4 is equal to that of the second main groove 9, and is smaller than the width of the central main groove 8.

[0004] From the above implementation scheme, it can be seen that the electric vehicle tire is provided with a pattern on the tire to increase the tire's grip and drainage performance, making the tire's operation more stable, but there is no mention of the ratio of the tire's running surface to the cross-sectional width. If the running surface is small, the contact area between the electric vehicle and the ground is small, and the tire's supporting force will be insufficient, which will cause the tire to be unstable. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and sets the ratio of the running surface to the tire width to be 80% to 87%, which is larger than the 80% ratio of the running surface to the tire width of most tires on the market. When the tire width is the same, the area in contact with the ground is larger, thereby improving the stability of the electric vehicle.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] An energy-saving electric vehicle tire comprises a crown and a shoulder, wherein the upper surface of the crown is a running surface, the widest part of the shoulder is a tire width, and the ratio of the running surface to the tire width is 80% to 87%;

[0008] The running surface is provided with at least one circumferential groove, and at least one transverse groove is provided intersecting with the circumferential groove.

[0009] Furthermore, a corner pattern is provided at the intersection of the crown and the shoulder.

[0010] Furthermore, an end of the corner pattern away from the center of the crown is provided with an oblique angle leading from the bottom of the groove to the crown surface.

[0011] Furthermore, the crown and shoulder parts are both made of high-strength nylon cords as skeleton materials.

[0012] Furthermore, at least one side retaining ring is arranged on the tire shoulder.

[0013] Furthermore, three parallel circumferential grooves are arranged in the middle of the tread crown, and the width and depth of the circumferential grooves at the center are greater than the width and depth of the circumferential grooves at both sides.

[0014] Furthermore, seven circumferential grooves are arranged on the tire crown, wherein the width and depth of the circumferential grooves on both sides of the middle circumferential groove are smaller than the width and depth of the other circumferential grooves.

[0015] Furthermore, an end of the transverse pattern away from the center of the crown is provided with an oblique angle leading from the groove bottom to the crown surface.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The ratio of the running surface to the tire width is set at 80% to 87%, which is larger than the 80% ratio of the running surface to the tire width of most tires on the market. When the tire width is the same, the area of ​​contact between the tire and the ground is larger, thus making the electric vehicle more stable.

[0018] 2. Circumferential grooves are set to facilitate drainage of electric vehicles. However, if the circumferential grooves are too dense, the tire crown will bear too much inflation pressure inside the tire after the tire is inflated, which can easily cause the tire to deform. Therefore, circumferential grooves of different widths are set at the center of the tire crown, which not only ensures the strength of the center of the tire crown, but also achieves the effect of comprehensive drainage.

[0019] 3. Transverse patterns that intersect with the circumferential patterns are set to form pattern blocks on the crown surface. The pattern blocks make the tension distribution of the tire more uniform, so that the tire wears more evenly during use and is not prone to the risk of local tire blowouts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 A three-dimensional schematic diagram of a tire;

[0022] Figure 2 This is the front view of the tire;

[0023] Figure 3 This is a top view of the tire;

[0024] Figure 4 A partial cross-sectional view of a tire.

[0025] In the figure: 1. Circumferential pattern; 2. Transverse pattern; 3. Corner pattern; 4. Side retaining ring; A. Running surface; B. Tire width. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] like Figures 1 to 4 As shown, an energy-saving electric vehicle tire includes a crown and a shoulder, the upper surface of the crown is a running surface A, the widest part of the shoulder is a tire width B, and the ratio of the running surface A to the tire width B is 80% to 87%, which is larger than 80% of the ratio of the running surface to the tire width of most tires on the market. Under the condition of the same tire width, the area of ​​contact between the tire and the ground is larger, so the contact area between the pattern blocks formed by the circumferential pattern 1 and the transverse pattern 3 arranged on the crown and the ground is also larger, thereby increasing the grip of the tire. The increase in the grip of the tire makes the electric vehicle easier to start and the braking distance is shorter, thereby making the electric vehicle more stable and safer.

[0028] At least one circumferential groove 1 is arranged on the running surface A, and at least one transverse groove 2 is arranged at the intersection of the circumferential groove 1. The circumferential groove 1 and the transverse groove 3 form a pattern block. The pattern block divides the crown of the tire into multiple blocks, so that the tension of the tire after inflation is more evenly distributed at the crown, and the wear of the tire during use is more even, so that the tire is not prone to the risk of local tire blowout.

[0029] In the first embodiment of the utility model, three parallel circumferential grooves 1 are arranged in the middle of the tread crown, and the width and depth of the circumferential grooves 1 at the center are greater than the width and depth of the circumferential grooves 1 at both sides. Therefore, when the tire contacts the ground, the circumferential grooves 1 at the center play a major role in draining and sand removal, and the circumferential grooves 1 at both sides play an auxiliary role. Because the width and depth of the circumferential grooves 1 at both sides are smaller than the width and depth of the circumferential grooves 1 in the middle, the middle of the wheel crown will not be too weak. The setting of the circumferential grooves 1 on both sides not only strengthens the ability of draining and sand removal at the center of the wheel crown, but also ensures the strength of the wheel crown.

[0030] In the second embodiment of the utility model, more circumferential lines 1 are provided, and seven circumferential lines 1 are provided on the tread crown, wherein the width and depth of the circumferential lines 1 on both sides of the middle circumferential line 1 are smaller than the width and depth of the other circumferential lines 1, and the functions of the circumferential lines 1 on both sides of the middle circumferential line 1 here are the same as those in the first embodiment, and the circumferential lines 1 are also provided on the outer side of the heel of the tread crown in this embodiment, and these circumferential lines 1 enhance the ability of the tread crown to drain water and sand on the side, and can also intersect with the transverse lines 2 to form more pattern blocks, so that the tension of the tire is more uniform.

[0031] The end of the transverse pattern 2 away from the center of the tread is provided with an oblique angle from the bottom of the groove to the crown surface, so that water and sand enter the transverse pattern 2 from the center of the wheel crown, and are finally discharged from the end of the transverse pattern 2 away from the center of the tread. The setting of the oblique angle is more conducive to the rapid discharge of water and sand, reducing the friction between the tire and the ground, making the tire less likely to slip, and also reducing the consumption of the tram, achieving the effect of energy saving.

[0032] A corner pattern 3 is provided at the intersection of the crown and the shoulder. An end of the corner pattern 3 away from the center of the crown is provided with an oblique angle leading from the bottom of the groove to the crown surface. The oblique angle here has the same function as the oblique angle set on the transverse pattern 2, so it is not repeated here. The corner pattern 3 facilitates the discharge of sand and water from both sides of the crown. In addition, the corner pattern 3 allows the temperature on both sides of the crown to be quickly dissipated, reducing the material concentration on both sides of the crown, so that both sides of the crown will not heat up too quickly when the tire is running.

[0033] The crown and shoulder of the tire are made of high-strength nylon cord as the skeleton material. Compared with traditional rubber materials, high-strength nylon cord is lighter, so it can reduce the weight of the tire. In addition, the high-strength nylon cord forms an internal structure, making the tire stronger. Therefore, it not only makes the tire more wear-resistant and durable, but also reduces the energy consumption of electric vehicle drive tires, achieving the effect of energy saving and emission reduction.

[0034] At least one side retaining ring 4 is arranged on the tire shoulder, which can protect the side of the tire when it rubs against other objects. In addition, when rainwater moves from the tire crown to the wheel hub, it will be blocked when it encounters the retaining ring, thus preventing rainwater from entering the wheel hub and protecting the wheel hub.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving electric vehicle tire, comprising a crown and a shoulder, wherein the upper surface of the crown is a running surface (A), and the widest part of the shoulder is a tire width (B), characterized in that: The ratio of the running surface (A) to the tire width (B) is 80% to 87%; The running surface (A) is provided with at least one circumferential groove (1), and at least one transverse groove (2) is provided intersecting the circumferential groove (1).

2. The energy-saving electric vehicle tire according to claim 1, characterized in that: A corner pattern (3) is provided at the intersection of the tread crown and the tread shoulder.

3. The energy-saving electric vehicle tire according to claim 2, characterized in that: The end of the corner pattern (3) away from the center of the tread crown is provided with an oblique angle extending from the bottom of the groove to the tread crown surface.

4. The energy-saving electric vehicle tire according to claim 1, characterized in that: The crown and shoulder are both made of high-strength nylon cords as skeleton materials.

5. The energy-saving electric vehicle tire according to any one of claims 1 to 4, characterized in that: At least one side retaining ring (4) is arranged on the tire shoulder.

6. The energy-saving electric vehicle tire according to claim 1, characterized in that: Three parallel circumferential grooves (1) are arranged in the middle of the tread, and the width and depth of the circumferential groove (1) at the center are greater than the width and depth of the circumferential grooves (1) at both sides.

7. The energy-saving electric vehicle tire according to claim 1, characterized in that: The tire crown is provided with seven circumferential grooves (1), wherein the width and depth of the circumferential grooves (1) located on both sides of the middle circumferential groove (1) are smaller than the width and depth of the other circumferential grooves (1).

8. The energy-saving electric vehicle tire according to claim 6 or 7, characterized in that: The end of the transverse groove (2) away from the center of the crown is provided with an oblique angle extending from the bottom of the groove to the crown surface.

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