Tire for new energy vehicle

Abstract

The present application relates to the field of tire technology, and more particularly to a tire for new energy vehicles, the middle part of the tread of which is provided with a plurality of mutually parallel longitudinal grooves, and the opposite sides of the tread are respectively provided with a plurality of mutually parallel transverse grooves; each transverse groove is in communication with the longitudinal groove on the corresponding side to form a flow guide groove. A pattern bar is formed between each two adjacent longitudinal grooves, and a pattern block is formed between each two adjacent transverse grooves. A first rigidity balancing unit is used to balance the rigidity of the pattern block, and further improve the grip when a larger instantaneous torque is encountered. When the vehicle is running on a wet and slippery road surface, the water film breaking structure can prevent the formation of a water film and prevent the tire from slipping. A second rigidity balancing unit is used to balance the rigidity of the pattern bar and can prevent the formation of a water film, increase the contact area of the tread with the ground, and improve the grip, wear resistance, and driving safety of the tire.

Description

TECHNICAL FIELD

[0001] The present application relates to the tire technical field, and particularly relates to a tire for new energy vehicle. BACKGROUND

[0002] With the increasingly exhausted oil energy, vehicles gradually develop towards new energy. Meanwhile, higher requirements are put forward for the tire for new energy vehicle. Since the new energy vehicle reaches the maximum torque instantaneously when starting, the tire needs to have stronger grip.

[0003] Therefore, how to improve the grip of the tire becomes a technical problem to be solved by the person skilled in the art. SUMMARY

[0004] The present application provides a tire for new energy vehicle to solve the problem of how to improve the grip of the tire.

[0005] The present application provides a tire for new energy vehicle, wherein the middle part of the tread of the tire for new energy vehicle is provided with a plurality of mutually parallel longitudinal grooves, and the opposite sides of the tread are respectively provided with a plurality of mutually parallel transverse grooves; each transverse groove is communicated with the longitudinal groove on the corresponding side to form a flow guide groove; each adjacent two longitudinal grooves form a pattern bar; each adjacent two transverse grooves form a pattern block; a first rigid balance unit is installed on each pattern block; a plurality of water film breaking structures are uniformly formed in each longitudinal groove along the extension direction; and at least one pattern bar is uniformly provided with a plurality of second rigid balance units along the extension direction.

[0006] In some embodiments, each first rigid balance unit is a steel strip embedded in the surface of a pattern block.

[0007] In some embodiments, the length of each first rigid balance unit is 20mm-40mm, the thickness is 0.1mm-1.5mm, and the embedding depth is 1mm-7mm.

[0008] In some embodiments, each second rigid balance unit comprises:

[0009] a pattern bar installed on the surface of the pattern bar;

[0010] a steel sheet embedded in the surface of the pattern bar and connected with the pattern bar.

[0011] In some embodiments, the width of the pattern bar is 1mm-8mm, and the inclination angle is 1°-5°.

[0012] In some embodiments, the depth of each water film breaking structure is 0.1mm-1.5mm.

[0013] In some embodiments, each water film breaking structure is in a "V" shape, and includes a plurality of protrusions arranged at equal intervals.

[0014] In some embodiments, the middle part of the tread of the tire for new energy vehicle has 65-75 first pitches, and the opposite sides of the tread each has 70-80 second pitches.

[0015] In some embodiments, the first pitch has 3-5 types, and the second pitch has 3-5 types.

[0016] In some embodiments, the inside of at least one pattern strip is uniformly embedded with a plurality of transversely elastic traction strips along the extension direction.

[0017] The beneficial effects of the present application are as follows: The middle part of the tread of the tire for new energy vehicle is provided with a plurality of longitudinal grooves arranged side by side, and the opposite sides of the tread are each provided with a plurality of transverse grooves arranged side by side. Each transverse groove is connected with the corresponding longitudinal groove to form a flow guide groove to guide the water flow to separate from the tread. Between each two adjacent longitudinal grooves, a pattern strip is formed. Between each two adjacent transverse grooves, a pattern block is formed. In this way, the contact area of the tread with the ground can be effectively improved, and the tire has strong grip when coping with large instantaneous torque, and the wear resistance of the tire is improved. The first rigid balance unit is used to balance the rigidity of the pattern block, and further improves the grip when coping with large instantaneous torque. A plurality of water film breaking structures are uniformly formed in each longitudinal groove along the extension direction thereof. When the vehicle runs on a wet and slippery road surface, the water film breaking structure can prevent the formation of water film and prevent the tire from slipping, thereby enhancing the grip of the tire. The second rigid balance unit is used to balance the rigidity of the pattern strip and can prevent the formation of water film, increase the contact area of the tread with the ground, and improve the grip, wear resistance and driving safety of the tire. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of a partial structure of a tread of a tire for new energy vehicle according to the present application;

[0019] Figure 2 is Figure 1 a schematic view of the tire for new energy vehicle shown in Fig. 1 in use.

[0020] In the drawings, 110 is a longitudinal groove; 120 is a transverse groove; 130 is a pattern strip; 140 is a pattern block; 150 is a first rigid balance unit; 160 is a water film breaking structure; 170 is a second rigid balance unit; 171 is a pattern rib; and 172 is a steel sheet. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described clearly and completely below in connection with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] It should be noted that, compared with fuel vehicles, new energy vehicles use motors instead of engines, so that the noise of the whole vehicle is reduced, and the influence of tire noise on the noise of the whole vehicle is increased. When the new energy vehicle starts, it reaches the maximum torque instantaneously. Compared with fuel vehicles, new energy vehicles are generally heavier, and the tire load is heavier, so the wear requirement of the tire is higher.

[0023] As background art, with the increasing depletion of oil energy, vehicles gradually develop towards new energy. At the same time, higher requirements are put forward for new energy vehicle tires. Because the new energy vehicle reaches the maximum torque instantaneously when starting, the tire needs to have stronger grip. Therefore, how to improve the grip of the tire has become a technical problem to be solved by those skilled in the art.

[0024] To solve the above problems, with reference to Figure 1 and Figure 2 The present application provides a new energy vehicle tire, the middle part of the tread is provided with a plurality of mutually parallel longitudinal grooves 110, and the opposite sides of the tread are respectively provided with a plurality of mutually parallel transverse grooves 120. It should be noted that each longitudinal groove 110 extends along the circumferential direction of the tire, and a plurality of longitudinal grooves 110 are distributed along the lateral direction of the tire. Each transverse groove 120 on each side extends along the lateral direction of the tire, and a plurality of transverse grooves 120 on each side are distributed along the circumferential direction of the tire. Each transverse groove 120 is connected with the longitudinal groove 110 on the corresponding side to form a flow guide groove to guide the water flow away from the tread. Figure 2The arrow direction is the water flow direction. Each adjacent two longitudinal grooves 110 form a pattern bar 130. Each adjacent two transverse grooves 120 form a pattern block 140. In this way, the contact area of the tire and the ground can be effectively increased, the instantaneous torque can be better handled, and the tire grip and wear resistance can be improved. A first rigid balancing unit 150 is installed on each pattern block 140. The first rigid balancing unit 150 is used to balance the rigidity of the pattern block 140, and further improve the grip when the instantaneous torque is large. A plurality of water film breaking structures 160 are uniformly formed in the longitudinal grooves 110 along the extension direction. When the vehicle runs on a wet road, the water film breaking structure 160 can prevent the formation of a water film and prevent the tire from slipping, thereby enhancing the tire grip. At least one pattern bar 130 is uniformly provided with a plurality of second rigid balancing units 170 along the extension direction. The second rigid balancing unit 170 is used to balance the rigidity of the pattern bar 130, and can prevent the formation of a water film, increase the contact area of the tire and the ground, and improve the tire grip, wear resistance and driving safety.

[0025] Preferably, the pattern bar 130 located in the middle of the tire is uniformly provided with a plurality of second rigid balancing units 170 along the extension direction, which is used to balance the rigidity of the middle pattern bar 130, and can prevent the formation of a water film on the middle pattern bar 130, increase the contact area of the tire and the ground, and improve the tire grip, wear resistance and driving safety.

[0026] Preferably, the longitudinal grooves 110 are 4, and the pattern bars 130 are 3.

[0027] Preferably, each first rigid balancing unit 150 is a steel strip embedded in the surface of a pattern block 140. The length of each first rigid balancing unit 150 is 20-40 mm, the thickness is 0.1-1.5 mm, and the embedding depth is 1-7 mm, which can effectively balance the rigidity of the pattern block 140, prevent the formation of a water film, and improve the instantaneous grip when the instantaneous torque is large.

[0028] Specifically, in the exemplary embodiment, each second rigid balancing unit 170 includes a pattern rib 171 and a steel sheet 172. The pattern rib 171 is installed on the surface of the pattern bar 130. The steel sheet 172 is embedded in the surface of the pattern bar 130 and is connected with the pattern rib 171, which can effectively balance the rigidity of the pattern bar 130, prevent the formation of a water film, and improve the instantaneous grip when the instantaneous torque is large.

[0029] Preferably, the width of the pattern rib 171 is 1-8 mm, and the inclination angle is 1-5°.

[0030] Preferably, the depth of each water film breaking structure 160 is 0.1mm-1.5mm. Each water film breaking structure 160 is in a "V" shape structure as a whole, including a plurality of equidistantly arranged protrusions and a long protrusion, and has a good water film breaking effect.

[0031] Preferably, the middle part of the tire tread of the new energy vehicle tire has 65-75 first pitches, and the opposite sides of the tire tread each have 70-80 second pitches. The number of the first pitches is 3-5. The number of the second pitches is 3-5. When the tire tread pitches are arranged in the circumferential direction, a multi-level variable pitch arrangement mode is adopted. In this way, the contact area of the tire tread with the ground can be ensured, the grip force can be improved, and the tire noise can be effectively reduced.

[0032] Preferably, the inside of at least one of the pattern strips 130 is uniformly embedded with a plurality of transverse elastic traction strips in the extension direction. The elastic coefficient of the plurality of transverse elastic traction strips is greater than the elastic coefficient of the tire tread material. When the stress is the same, the deformation amount is relatively smaller with respect to the tire tread, which can increase the contact area of the tire tread with the ground when stressed, thereby improving the grip force.

[0033] Test results show that the wet skid test result of the new energy vehicle tire provided by the application is 1.69, and the noise test result is 71 decibels, which is suitable for new energy vehicles with higher requirements for tire wear.

[0034] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0035] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0036] In this application, unless otherwise clearly indicated, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements or interaction between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In this application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, different embodiments or examples described in the specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0038] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A tire for a new energy vehicle, characterized by, The middle part of the tire tread of the new energy vehicle tire is provided with a plurality of mutually parallel longitudinal grooves, and the opposite sides of the tire tread are respectively provided with a plurality of mutually parallel transverse grooves; each transverse groove is connected with the longitudinal groove on the corresponding side to form a flow guide groove; a pattern bar is formed between each adjacent two longitudinal grooves; a pattern block is formed between each adjacent two transverse grooves; a first rigid balance unit is installed on each pattern block; a plurality of water film breaking structures are uniformly formed in each longitudinal groove along the extension direction; and at least one pattern bar is uniformly provided with a plurality of second rigid balance units along the extension direction. Each water film breaking structure is in the shape of a "V" as a whole and includes a plurality of protrusions arranged at equal intervals.

2. The tire for new energy vehicles according to claim 1, characterized in that, Each first rigid balance unit is a steel strip embedded in the surface of a pattern block.

3. The new energy vehicle tire of claim 1, wherein, The length of each first rigid balance unit is 20-40 mm, the thickness is 0.1-1.5 mm, and the embedding depth is 1-7 mm.

4. The new energy vehicle tire of claim 1, wherein, Each second rigid balance unit includes: a pattern bar installed on the surface of the pattern bar; a steel sheet embedded in the surface of the pattern bar and connected with the pattern bar.

5. The new energy vehicle tire according to claim 4, characterized in that, The width of the pattern bar is 1-8 mm, and the inclination angle is 1-5°.

6. The new energy vehicle tire of claim 1, wherein, The depth of each water film breaking structure is 0.1-1.5 mm.

7. The new energy vehicle tire of claim 1, wherein, The middle part of the tire tread of the new energy vehicle tire has 65-75 first pitches, and the opposite sides of the tire tread are respectively provided with 70-80 second pitches.

8. The new energy vehicle tire according to claim 7, characterized in that, The number of the first pitches is 3-5, and the number of the second pitches is 3-5.

9. The new energy vehicle tire of claim 1, wherein, The inside of at least one pattern bar is uniformly pre-buried with a plurality of transverse elastic traction strips along the extension direction.

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