New energy automobile tire pattern and tire

Abstract

The utility model belongs to the technical field of tire patterns, and relates to a new energy automobile tire pattern and a tire, which comprise a central pattern block arranged in the center of a tread, and longitudinal main pattern grooves I, middle rib pattern blocks, longitudinal main pattern grooves II and shoulder pattern blocks are sequentially arranged on two sides of the central pattern block, a plurality of oblique linear thin grooves which are arranged at equal intervals are circumferentially formed in the central pattern block, V-shaped grooves and thin groove groups are circumferentially formed in the middle rib pattern blocks at intervals, openings in the two ends of each V-shaped groove are slightly flat, the included angle of each V-shaped groove is 110-150 degrees, the heights of the openings in the two ends of each V-shaped groove are different, and the two ends of each V-shaped groove are communicated with a longitudinal main pattern groove I and a longitudinal main pattern groove II respectively; arc-shaped grooves and arc-shaped thin grooves which are parallel to each other are formed in the shoulder pattern blocks at intervals in the circumferential direction. By adopting the tire pattern, the road holding force of the tire can be ensured, the safe driving performance of a vehicle is enhanced, and meanwhile, the mute performance of the new energy automobile tire is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire patterns, and in particular relates to a tire pattern and a tire for a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as a power source, or use conventional vehicle fuels as a power source but use new vehicle power devices. They are vehicles that integrate advanced technologies in vehicle power control and drive, and have advanced technical principles, new technologies, and new structures, including pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. Tires are circular elastic connectors between vehicles and roads, and are the walking structures of vehicles, transmitting the driving, steering, and braking forces of the vehicle to the ground, including driving force, traction, braking force, and steering force.

[0003] In recent years, the number of new energy vehicles in my country has been growing rapidly. Compared with internal combustion vehicles, owners of new energy vehicles are more sensitive to noise inside the car, especially tire noise, so reducing tire noise is crucial for comfortable driving. Tires must enable the car to drive freely in various climates, road surfaces and speeds, with stable handling and high-speed safety. At the same time, they also need to buffer vibrations, reduce noise and provide comfortable riding. The tire pattern structure is the main form of expression of these functions.

[0004] As the production and sales volume of new energy vehicles increases, existing tires cannot fully meet the requirements of new energy vehicles, so it is very necessary to develop new energy vehicle tires. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned problems existing in the prior art, and proposes a tire pattern and a tire for a new energy vehicle. The tire pattern can ensure the grip of the tire, enhance the safe driving performance of the vehicle, and at the same time improve the quietness performance of the new energy vehicle tire.

[0006] The technical solution of the utility model is:

[0007] A new energy vehicle tire pattern comprises a central pattern block arranged at the center of the tread, wherein longitudinal main pattern groove I, a middle rib pattern block, longitudinal main pattern groove II and a shoulder pattern block are sequentially arranged on both sides of the central pattern block, a plurality of equally spaced oblique straight fine grooves are circumferentially arranged on the central pattern block, V-shaped grooves and fine groove groups are circumferentially arranged on the middle rib pattern block, the openings at both ends of the V-shaped groove are slightly flat, and the included angle thereof is 110° to 150°, the opening heights at both ends of the V-shaped groove are different, and the two ends thereof are respectively connected with the longitudinal main pattern groove I and the longitudinal main pattern groove II; arc grooves and arc fine grooves parallel to each other are circumferentially arranged on the shoulder pattern block.

[0008] Furthermore, the middle rib pattern blocks located on the left and right sides of the tread are centrally symmetrical, and the shoulder pattern blocks located on the left and right sides of the tread are centrally symmetrical.

[0009] Furthermore, the width of the oblique linear thin groove is 0.4-2.2 mm, and the angle between the oblique linear thin groove and the center line of the tread is 50°-80°.

[0010] Furthermore, the fine groove group includes a Z-shaped fine groove and an inner oblique fine groove and an outer oblique fine groove respectively arranged on both sides of the Z-shaped fine groove and symmetrically arranged at the center; the angle between the inner oblique fine groove and the center line of the tread is 80°~85°, and the angle between the outer oblique fine groove and the center line of the tread is 80°~85°.

[0011] Furthermore, the widths of the Z-shaped fine grooves, the inner oblique fine grooves and the outer oblique fine grooves are the same, which are all 0.4 to 1.0 mm.

[0012] Furthermore, the width of the arc-shaped fine groove is 0.4-1.0 mm, one end of the arc-shaped fine groove is closed, and the other end is connected to the adjacent longitudinal main groove II;

[0013] One end of the arc-shaped groove is closed, and the other end is narrowed to 0.4-1.0 mm in width and is connected to the adjacent longitudinal main pattern groove II.

[0014] Furthermore, the new energy vehicle tire pattern is composed of three to five pitches of different lengths, and the pitches of different lengths are arranged in disorder.

[0015] A tire comprises a tire tread, wherein the tread is provided with any one of the above-mentioned new energy vehicle tire patterns.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a new energy vehicle tire pattern, which reduces the amount of air enclosed in the grooves by designing a V-shaped groove with slightly flat openings at both ends, thereby reducing tire noise; by designing the transverse grooves (including the V-shaped grooves 7 and the oblique arc grooves 11) to be at an acute angle to the center line instead of a right angle design, the impact and vibration noise of the pattern blocks are reduced, and the quiet performance of the new energy vehicle tire is improved; by designing the transverse fine grooves (including the oblique straight fine grooves 6, the Z-shaped fine grooves 8, the inner oblique fine grooves 9, the outer oblique fine grooves 10, and the oblique arc grooves 12) and reducing the transverse groove width, the pumping noise of the transverse grooves of the tire is reduced, and the quiet performance of the new energy vehicle tire is improved.

[0018] In addition, the four main grooves of the tire pattern enhance the drainage performance of the tire, ensure the tire's grip on flooded roads, and enhance the vehicle's safe driving performance; the random arrangement of unequal pitches makes the tire noise frequency distribution wider, reduces the resonance of tire noise, and thus further reduces tire noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the tire pattern structure of a new energy vehicle provided by the utility model;

[0020] In the above figures, 1. center pattern block; 2. longitudinal main pattern groove I; 3. middle rib pattern block; 4. longitudinal main pattern groove II; 5. shoulder pattern block; 6. oblique straight fine groove; 7. V-shaped groove; 8. Z-shaped fine groove; 9. inner oblique fine groove; 10. outer oblique fine groove; 11. oblique arcuate groove; 12. oblique arcuate fine groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the description of the present invention, it should be noted that the terms "inside", "outside", "left", "right", "both sides", etc. indicate directions or positional relationships based on the positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] like Figure 1As shown, the utility model relates to a new energy vehicle tire, and a pattern is provided on the tire tread, and the pattern includes a central pattern block 1 arranged at the center of the tread, a middle rib pattern block 3 located on both sides of the central pattern block 1, and a shoulder pattern block 5 located at the shoulder of the tire. A longitudinal main pattern groove I2 is provided between the central pattern block 1 and the middle rib pattern block 3, and a longitudinal main pattern groove II4 is provided between the middle rib pattern block 3 and the shoulder pattern block 5. The longitudinal main pattern groove I2 and the longitudinal main pattern groove II4 are both longitudinally arranged straight grooves. The design of four main pattern grooves enhances the drainage performance of the tire, improves the grip of the tire on a flooded road surface, and enhances the safe driving performance of the car.

[0024] The central pattern block 1 is provided with dozens of oblique linear grooves 6 arranged cyclically along the circumference of the tire tread. The specific number of the oblique linear grooves 6 is set according to actual needs. These oblique linear grooves 6 are arranged at equal intervals and their inclination angles and inclination directions are consistent. Furthermore, the width of the oblique linear grooves 6 is 0.4-2.2 mm, and the angle between the oblique linear grooves 6 and the centerline of the tread is 50°-80°. The oblique linear grooves 6 are designed to be at an acute angle to the centerline instead of a right angle, which can reduce the impact and vibration noise of the pattern block and improve the quiet performance of the tire of the new energy vehicle.

[0025] The middle rib pattern block 3 is provided with dozens of V-shaped grooves 7 with slightly flat openings at both ends arranged cyclically along the circumference of the tire tread, and dozens of fine groove groups arranged cyclically along the circumference of the tire tread. The V-shaped grooves 7 and the fine groove groups are arranged at intervals.

[0026] The angle α of the middle part of the V-shaped groove 7 with slightly flat openings at both ends is 110° to 150°. The opening heights at both ends of the V-shaped groove 7 are different, and the two ends are respectively connected to the longitudinal main pattern groove Ⅰ2 and the longitudinal main pattern groove Ⅱ4. The design of the V-shaped groove 7 with slightly flat openings at both ends can reduce the amount of air enclosed in the groove, thereby reducing tire noise; at the same time, the angle design of the V-shaped groove 7 and the center line also helps to reduce the noise generated by the pattern block and improve the quiet performance.

[0027] The fine groove group includes a Z-shaped fine groove 8 and an inner oblique fine groove 9 and an outer oblique fine groove 10 which are respectively arranged on both sides of the Z-shaped fine groove 8 and are centrally symmetrical. The angle between the inner oblique fine groove 9 and the centerline of the tread is 80° to 85°, and the angle between the outer oblique fine groove 10 and the centerline of the tread is 80° to 85°. This acute angle design (rather than a right-angle design) also reduces the impact and vibration noise of the pattern block, and improves the quiet performance of the new energy vehicle tire. Furthermore, the widths of the Z-shaped fine groove 8, the inner oblique fine groove 9, and the outer oblique fine groove 10 are the same, all of which are 0.4 to 1.0 mm. It should be noted that the grooves on the middle rib pattern blocks 3 on the left and right sides of the tread are centrally symmetrical to each other.

[0028] The shoulder pattern block 5 is provided with dozens of oblique arc grooves 11 arranged circumferentially along the tire tread. One end of the oblique arc groove 11 is closed, and the end near the center line is narrowed to 0.4-1.0 mm, and is connected to the adjacent longitudinal main pattern groove II. The design of the oblique arc groove 11 and the design of reducing the width of the end reduce the pumping noise of the tire's transverse groove, and improve the quiet performance of the new energy vehicle tire.

[0029] One or two oblique arc-shaped fine grooves 12 are provided between the two oblique arc-shaped grooves 11. The oblique arc-shaped grooves 11 and the oblique arc-shaped fine grooves 12 are parallel to each other, and the inclination directions of the two are consistent. Furthermore, the width of the oblique arc-shaped fine groove 12 is 0.4 to 1.0 mm, one end of the oblique arc-shaped fine groove 12 is closed, and the other end is connected to the adjacent longitudinal main pattern groove II. The width of the oblique arc-shaped fine groove 12 is relatively small, and this design is also intended to reduce the pumping noise of the tire transverse groove and improve the quiet performance of new energy vehicle tires. It should be noted that the grooves on the shoulder pattern blocks 5 on the left and right sides of the tread are centrally symmetrical to each other.

[0030] like Figure 1 As shown in the P marked in the figure, the tire pattern of the new energy vehicle consists of three to five pitches of different lengths arranged cyclically along the circumference of the tire tread, and the pitches of different lengths are arranged in a disordered manner. The random arrangement of unequal pitches here makes the noise frequency distribution of the tire wider, reduces the resonance of the tire noise, and thus further reduces the tire noise.

[0031] The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, modification, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tire pattern for a new energy vehicle, characterized in that: It comprises a central pattern block arranged at the center of the tread, wherein longitudinal main pattern groove I, middle rib pattern block, longitudinal main pattern groove II and shoulder pattern block are arranged in sequence on both sides of the central pattern block, a plurality of oblique straight fine grooves arranged at equal intervals are arranged circumferentially on the central pattern block, V-shaped grooves and fine groove groups are arranged at intervals along the circumference of the middle rib pattern block, the openings at both ends of the V-shaped groove are slightly flat, and the angles thereof are 110° to 150°, the opening heights at both ends of the V-shaped groove are different, and the two ends are respectively connected with longitudinal main pattern groove I and longitudinal main pattern groove II; arc grooves and arc fine grooves parallel to each other are arranged at intervals along the circumference of the shoulder pattern block.

2. The tire pattern of the new energy vehicle according to claim 1, characterized in that: The center rib pattern blocks located on the left and right sides of the tread are centrally symmetrical, and the shoulder pattern blocks located on the left and right sides of the tread are centrally symmetrical.

3. The tire pattern of the new energy vehicle according to claim 1, characterized in that: The width of the oblique linear fine groove is 0.4-2.2 mm, and the included angle between the oblique linear fine groove and the center line of the tread is 50°-80°.

4. The tire pattern of the new energy vehicle according to claim 1, characterized in that: The fine groove group includes a Z-shaped fine groove and inner oblique fine grooves and outer oblique fine grooves respectively arranged on both sides of the Z-shaped fine groove and symmetrically arranged at the center; the angle between the inner oblique fine groove and the center line of the tread is 80°~85°, and the angle between the outer oblique fine groove and the center line of the tread is 80°~85°.

5. The tire pattern of the new energy vehicle according to claim 4, characterized in that: The widths of the Z-shaped fine grooves, the inner oblique fine grooves and the outer oblique fine grooves are the same, which are all 0.4 to 1.0 mm.

6. The tire pattern of the new energy vehicle according to claim 1, characterized in that: The width of the arc-shaped fine groove is 0.4-1.0 mm, one end of the arc-shaped fine groove is closed, and the other end is connected to the adjacent longitudinal main groove II; One end of the arc-shaped groove is closed, and the other end is narrowed to 0.4-1.0 mm in width and is connected to the adjacent longitudinal main pattern groove II.

7. The tire pattern of the new energy vehicle according to claim 1, characterized in that: The tire pattern of the new energy vehicle is composed of three to five pitches of different lengths, and the pitches of different lengths are arranged in disorder.

8. A tire, comprising a tire tread, characterized in that: The tread is provided with a new energy vehicle tire pattern as described in any one of claims 1 to 7.

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