Economical EV car tire

Abstract

The utility model discloses an economical EV car tire which comprises a tread layer, a first pattern block, a second pattern block, a third pattern block, a fourth pattern block and a fifth pattern block which are sequentially arranged are formed on the tread layer, and the first pattern block and the second pattern block are spaced through a first straight groove. The second pattern block and the third pattern block are spaced by a second straight groove, the third pattern block and the fourth pattern block are spaced by a third straight groove, and the fourth pattern block and the fifth pattern block are spaced by a fourth straight groove; and the sum of the top pattern areas of the first pattern block, the second pattern block, the third pattern block, the fourth pattern block and the fifth pattern block accounts for 71% of the circumferential area of the tread layer. And the patterns on the second pattern blocks and the third pattern blocks are in central symmetry about the center line of the tire. The pattern grounding area is increased, the wear resistance is improved, and the road holding force is increased. And the four straight grooves are divided into five rows of pattern blocks, and the overall arrangement directions of the patterns are consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle tires, in particular to an economical EV car tire. Background Art

[0002] New energy vehicles have become the trend of automotive development and may change the existing automotive development history. The domestic market penetration rate increases year by year. In particular, the domestic automotive market has exceeded 30%, and the upward trend increases year by year. The rapidly developing new energy vehicles have driven the growth of related supporting tires.

[0003] New energy vehicles within 200,000 yuan are more popular in China. In particular, commercial taxis, online car-hailing, and short-distance urban vehicles have increased significantly, and the market capacity is huge. The subsequent tire replacement cycle is approaching. There is a particular need for an economical EV tire. The product structure still mainly uses traditional tires for gasoline vehicles, and it is becoming increasingly urgent to adapt to market changes.

[0004] Due to the increase in the self-weight of new energy vehicles, combined with their high-response acceleration and faster zero-to-hundred-kilometer acceleration, there is still an urgent need for an economical EV car tire with high grip performance to avoid uneven wear. Summary of the Utility Model

[0005] The utility model provides an economical EV car tire to solve the above problems.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] An economical EV car tire includes a tread layer. First tread blocks, second tread blocks, third tread blocks, fourth tread blocks, and fifth tread blocks are formed in sequence on the tread layer. The first tread block and the second tread block are separated by a first straight groove. The second tread block and the third tread block are separated by a second straight groove. The third tread block and the fourth tread block are separated by a third straight groove. The fourth tread block and the fifth tread block are separated by a fourth straight groove;

[0008] The total top tread area of the first tread block, the second tread block, the third tread block, the fourth tread block, and the fifth tread block accounts for 71% of the circumferential area of the tread layer.

[0009] The treads on the second tread block and the third tread block are centrosymmetric about the center line of the tire.

[0010] In one embodiment, the shape of the third tread block is a parallelogram.

[0011] In one embodiment, adjacent third tread blocks are separated by steel sheet patterns with an angle of 45 degrees to the second straight groove.

[0012] In one embodiment, a blade pattern is formed on the first tread block, one end of which communicates with the first straight groove and the other end terminates within the pattern of the first tread block.

[0013] In one embodiment, adjacent first tread blocks are spaced apart by dividing patterns, one end of the dividing pattern is connected to the first straight groove, and the other end communicates with the tire shoulder.

[0014] In one embodiment, the dividing pattern includes a first connecting portion and a second connecting portion, the first connecting portion is located on the tire shoulder, and the second connecting portion is located on the tread surface.

[0015] Compared with the prior art, the beneficial effects of the present utility model at least include:

[0016] By setting the pattern land ratio on the tire to 71% and the sea ratio to 29%, the pattern contact area increases, improving the wear resistance and increasing the grip. And the left and right patterns are reversely symmetrically designed, the four straight grooves are divided into five rows of tread blocks, and the overall arrangement direction of the patterns is the same, enabling the tread blocks to be used in both forward and reverse directions, facilitating the swapping of left and right wheels, improving the adaptability of the tire, and saving economic consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the tire according to an embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of a partial structure of the tire according to an embodiment of the present utility model Figure 1 ;

[0019] Figure 3 is a schematic diagram of a partial structure of the tire according to an embodiment of the present utility model Figure 2 .

[0020] In the figure: 1, first tread block; 2, second tread block; 3, third tread block; 4, fourth tread block; 5, fifth tread block; 6, first straight groove; 7, second straight groove; 8, third straight groove; 9, fourth straight groove; 11, steel sheet pattern; 12, blade pattern; 13, dividing pattern; 131, first connecting portion; 132, second connecting portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their repetitive description will be omitted.

[0022] The words describing positions and directions in the present utility model are all illustrated by taking the attached drawings as examples, but can be changed according to needs, and all changes made are included in the protection scope of the present utility model.

[0023] Referring to Figures 1-3 , the present utility model provides an economy EV car tire, including a tread layer. First tread blocks 1, second tread blocks 2, third tread blocks 3, fourth tread blocks 4, and fifth tread blocks 5 are formed in sequence on the tread layer. The first tread blocks 1 and the second tread blocks 2 are spaced by a first straight groove 6, the second tread blocks 2 and the third tread blocks 3 are spaced by a second straight groove 7, the third tread blocks 3 and the fourth tread blocks 4 are spaced by a third straight groove 8, and the fourth tread blocks 4 and the fifth tread blocks 5 are spaced by a fourth straight groove 9. Adjacent tread grooves are spaced by straight grooves and are divided into continuous treads under the action of the straight grooves, which is beneficial for new energy vehicles to maintain good steering performance under urban conditions. The four straight-groove treads increase the drainage performance of the wetland, improve safety, and improve the grip performance.

[0024] The total top tread area of the first tread blocks 1, second tread blocks 2, third tread blocks 3, fourth tread blocks 4, and fifth tread blocks 5 accounts for 71% of the circumferential area of the tread layer. The tread grounding area is large, and the area of the grooves is moderately adjusted. While improving the tire grip, the tire can break through the water film and improve safety.

[0025] The treads on the second tread blocks 2 and the third tread blocks 3 are centrosymmetric about the center line of the tire. For the centrosymmetric treads, when the electric vehicle accelerates at high speed and decelerates in a short time, it can avoid uneven wear of the tire, provide stable grip, and can be swapped left and right, improving the economic value and flexibility.

[0026] In one embodiment, the shape of the third tread blocks 3 is a parallelogram. Among them, the parallelogram tread blocks are located in the middle of the tire, which can effectively play a role in gripping, and the parallelogram tread blocks are inclined towards the top, which can stably play a connecting role, avoid the loosening of the tread blocks, and provide stable friction while maintaining a close arrangement.

[0027] In one embodiment, adjacent third tread blocks 3 are spaced by steel sheet patterns 11 with an included angle of 45 degrees with the second straight groove 7. The two adjacent third tread blocks 3 are separated by 45-degree inclined grooves, which can overcome the abnormal wear of the tire caused by the fast start and fast braking reaction of the EV tram. After the center tread is divided, the stress distribution of the rigid tread can be dispersed, and the stress distribution of the tire is uniform after being stressed, and uneven wear will not occur in the middle and later stages of use.

[0028] In one embodiment, a blade pattern 12 is formed on the first tread block 1, with one end communicating with the first straight groove 6 and the other end terminating within the tread of the first tread block 1. The blade pattern 12 is formed on the first tread block 1, dividing the portion of the first tread block 1 near the first straight groove 6 into a surface that can flexibly grip the ground, enabling stable ground gripping during driving.

[0029] In one embodiment, two adjacent first tread blocks 1 are spaced apart by a dividing groove 13. One end of the dividing groove 13 is connected to the first straight groove 6, and the other end communicates with the tire shoulder. The dividing groove 13 can divert the water flow at the top of the first tread block 1 to the tire shoulder, providing good grip.

[0030] In one embodiment, the dividing groove 13 includes a first connecting portion 131 and a second connecting portion 132. The first connecting portion 131 is located on the tire shoulder, and the second connecting portion 132 is located on the tread surface. The first connecting portion 131 is generally V-shaped as a whole, and one end of the second connecting portion 132 is connected. When the tire travels on a waterlogged road surface, the first connecting portion 131 and the second connecting portion 132 can provide good water-breaking ability, break the water film, and improve the grip performance.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Without departing from the principles and purposes of the present invention, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. An economical EV car tire, characterized in that: The tread layer comprises a first pattern block, a second pattern block, a third pattern block, a fourth pattern block and a fifth pattern block arranged in sequence, wherein the first pattern block and the second pattern block are spaced by a first straight groove, the second pattern block and the third pattern block are spaced by a second straight groove, the third pattern block and the fourth pattern block are spaced by a third straight groove, and the fourth pattern block and the fifth pattern block are spaced by a fourth straight groove; The total top pattern area of ​​the first pattern block, the second pattern block, the third pattern block, the fourth pattern block and the fifth pattern block accounts for 71% of the circumferential area of ​​the tread layer; The patterns on the second pattern block and the third pattern block are centrally symmetrical about the center line of the tire.

2. The economical EV car tire according to claim 1, characterized in that: The third pattern block is in the shape of a parallelogram.

3. The economical EV car tire according to claim 2, characterized in that: Two adjacent third pattern blocks are separated by a steel plate pattern having an included angle of 45 degrees with the second straight groove.

4. The economical EV car tire according to claim 3, characterized in that: The first pattern block is formed with one end communicating with the first straight groove and the other end terminating at a blade pattern in the pattern of the first pattern block.

5. The economical EV car tire according to claim 1, characterized in that: Two adjacent first pattern blocks are spaced apart by a splitting pattern, one end of the splitting pattern is connected to the first straight groove, and the other end is connected to the shoulder.

6. The economical EV car tire according to claim 5, characterized in that: The segmented pattern includes a first connecting portion and a second connecting portion, wherein the first connecting portion is located on the shoulder, and the second connecting portion is located on the tread.

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