Tire for new energy vehicle

Abstract

The invention relates to the technical field of tires, in particular to a tire for a new energy vehicle, which is characterized in that a plurality of mutually parallel longitudinal grooves are formed in the middle of a tread of the tire, and a plurality of mutually parallel transverse grooves are respectively formed in two opposite sides of the tread; and each transverse groove is communicated with the longitudinal groove on the corresponding side to form a diversion trench. A pattern strip is formed between every two adjacent longitudinal grooves, and a pattern block is formed between every two adjacent transverse grooves. And the first rigid balance unit is used for balancing the rigidity of the pattern blocks, and the road holding force is further improved when the large instantaneous torque is dealt with. When a vehicle runs on a wet and slippery road surface, the water film damage structure can prevent a water film from being formed, and tire slipping is prevented. And the second rigidity balancing units are used for balancing the rigidity of the pattern strips and can prevent formation of a water film, the contact area between the tread and the ground is increased, and the road holding force, the abrasion resistance and the driving safety of the tire are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tires, and in particular to a tire for new energy vehicles. Background Art

[0002] As petroleum energy is becoming increasingly depleted, vehicles are gradually moving towards new energy. At the same time, higher requirements are also placed on tires for new energy vehicles. Since new energy vehicles reach maximum torque instantly when starting, tires are required to have stronger grip.

[0003] Therefore, how to improve the grip of tires has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] The present invention provides a tire for a new energy vehicle, which is used to solve the problem of how to improve the grip of the tire.

[0005] The present invention provides a tire for new energy vehicles. A plurality of mutually parallel longitudinal grooves are arranged in the middle of the tread of the tire for new energy vehicles, and a plurality of mutually parallel transverse grooves are arranged on opposite sides of the tread; each transverse groove is connected with the longitudinal groove on the corresponding side to form a guide groove; a tread strip is formed between every two adjacent longitudinal grooves; a tread block is formed between every two adjacent transverse grooves; a first rigid balancing unit is installed on each tread block; a plurality of water film destroying structures are uniformly formed in each longitudinal groove along the extension direction; and a plurality of second rigid balancing units are uniformly installed along the extension direction of at least one tread strip.

[0006] In some of the embodiments, each first rigid balancing unit is a steel bar embedded in a surface of a tread block.

[0007] In some of the embodiments, each first rigid balancing unit has a length of 20 mm to 40 mm, a thickness of 0.1 mm to 1.5 mm, and an embedding depth of 1 mm to 7 mm.

[0008] In some embodiments, each second rigid balancing unit comprises: Tread ribs, installed on the surface of the tread strips; The steel sheet is embedded in the surface of the pattern strip and connected with the pattern rib.

[0009] In some of the embodiments, the width of the rib is 1 mm-8 mm, and the inclination angle is 1°-5°.

[0010] In some of the embodiments, the depth of each water film destruction structure is 0.1 mm-1.5 mm.

[0011] In some of the embodiments, each water film destroying structure is an overall "V"-shaped structure, including a plurality of protrusions arranged at equal intervals.

[0012] In some of the embodiments, the middle portion of the tread of the tire for new energy vehicles has 65-75 first pitches, and opposite sides of the tread have 70-80 second pitches respectively.

[0013] In some embodiments, the types of the first pitches are 3 to 5; the types of the second pitches are 3 to 5.

[0014] In some of the embodiments, a plurality of transverse elastic traction strips are uniformly pre-embedded in the interior of at least one tread strip along the extension direction.

[0015] The beneficial effects of the present invention are as follows: the middle part of the tread of the tire for new energy vehicles of the present invention 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 connected with the longitudinal groove on the corresponding side to form a guide groove to guide the water flow away from the tread. A pattern strip is formed between each two adjacent longitudinal grooves. A pattern block is formed between each two adjacent transverse grooves. In this way, the contact area between the tread and the ground can be effectively increased, and when dealing with a large instantaneous torque, it has a stronger grip and improves the wear resistance of the tire. The first rigid balancing unit is used to balance the rigidity of the pattern block, and when dealing with a large instantaneous torque, the grip is further improved. In each longitudinal groove, a plurality of water film destruction structures are uniformly formed along its extension direction. When the vehicle is traveling on a slippery road, the water film destruction structure can prevent the formation of water film and prevent the tire from slipping, thereby enhancing the grip of the tire. The second rigidity balancing unit is used to balance the rigidity of the tread strips and can prevent the formation of water film, increase the contact area between the tread and the ground, and improve the tire's grip, wear resistance and driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a partial structure of a tread of a tire for a new energy vehicle of the present invention; Figure 2 yes Figure 1 The schematic diagram of the tire for new energy vehicles shown is in use.

[0017] In the attached drawings, 110, longitudinal groove; 120, transverse groove; 130, tread strip; 140, tread block; 150, first rigid balancing unit; 160, water film destruction structure; 170, second rigid balancing unit; 171, tread rib; 172, steel sheet. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that compared with fuel vehicles, new energy vehicles use electric motors instead of engines, which reduces the noise of the whole vehicle, so the impact of tire noise on the noise of the whole vehicle increases. When starting, new energy vehicles reach maximum torque instantly. Compared with fuel vehicles, new energy vehicles are generally heavier, the tire load is heavier, and the wear requirements of tires are higher.

[0020] As the background technology shows, with the increasing depletion of petroleum energy, vehicles are gradually developing towards new energy. At the same time, higher requirements are also put forward for tires used in new energy vehicles. Since new energy vehicles reach maximum torque instantly when starting, the tires need to have stronger grip. Therefore, how to improve the grip of tires has become a technical problem that needs to be solved urgently by those skilled in the art.

[0021] To solve the above problems, refer to Figure 1 and Figure 2 The present invention provides a tire for new energy vehicles, wherein a plurality of longitudinal grooves 110 arranged in parallel with each other are arranged in the middle of the tread, and a plurality of transverse grooves 120 arranged in parallel with each other are arranged on opposite sides of the tread. It should be noted that each longitudinal groove 110 extends along the circumference of the tire, and the plurality of longitudinal grooves 110 are distributed in the transverse direction of the tire. Each transverse groove 120 on each side extends in the transverse direction of the tire, and the plurality of transverse grooves 120 on each side are distributed in the circumferential direction of the tire. Each transverse groove 120 is connected with the longitudinal groove 110 on the corresponding side to form a guide groove to guide water flow away from the tread. Figure 2The direction of the middle arrow is the direction of water flow. A tread 130 is formed between each two adjacent longitudinal grooves 110. A tread block 140 is formed between each two adjacent transverse grooves 120. In this way, the contact area between the tread and the ground can be effectively increased, and when dealing with a large instantaneous torque, it has a stronger grip and improves the wear resistance of the tire. A first rigid balancing unit 150 is installed on each tread block 140. The first rigid balancing unit 150 is used to balance the rigidity of the tread block 140, and further improve the grip when dealing with a large instantaneous torque. In each longitudinal groove 110, a plurality of water film destruction structures 160 are uniformly formed along its extension direction. When the vehicle is driving on a slippery road, the water film destruction structure 160 can prevent the formation of water film, prevent the tire from slipping, and thus enhance the grip of the tire. At least one tread 130 is uniformly installed with a plurality of second rigid balancing units 170 along the extension direction. The second rigidity balancing unit 170 is used to balance the rigidity of the tread strip 130 and can prevent the formation of water film, increase the contact area between the tread and the ground, and improve the tire's grip, wear resistance and driving safety.

[0022] Preferably, the tread strip 130 located in the middle of the tread is evenly installed with multiple second rigid balancing units 170 along the extension direction, which are used to balance the rigidity of the tread strip 130 in the middle and prevent water film from forming on the tread strip 130 in the middle, thereby increasing the contact area between the tread and the ground and improving the tire's grip, wear resistance and driving safety.

[0023] Preferably, there are four longitudinal grooves 110 and three ribs 130 .

[0024] Preferably, each first rigid balancing unit 150 is a steel bar embedded in the surface of a pattern block 140. Each first rigid balancing unit 150 has a length of 20 mm to 40 mm, a thickness of 0.1 mm to 1.5 mm, and an embedding depth of 1 mm to 7 mm, which can effectively balance the rigidity of the pattern block 140, prevent the formation of water film, and improve instantaneous grip when dealing with large instantaneous torque.

[0025] Specifically, in the exemplary embodiment, each second rigid balancing unit 170 includes a rib 171 and a steel sheet 172. The rib 171 is mounted on the surface of the tread strip 130. The steel sheet 172 is embedded in the surface of the tread strip 130 and connected with the rib 171, which can effectively balance the rigidity of the tread strip 130, prevent the formation of water film, and improve the instantaneous grip when dealing with large instantaneous torque.

[0026] Preferably, the width of the rib 171 is 1 mm-8 mm, and the inclination angle is 1°-5°.

[0027] Preferably, the depth of each water film destroying structure 160 is 0.1 mm to 1.5 mm. Each water film destroying structure 160 is a "V"-shaped structure as a whole, including a plurality of equally spaced protrusions and a long protrusion, and has a good water film destroying effect.

[0028] Preferably, the middle part of the tread of the tire for new energy vehicles has 65-75 first pitches, and the opposite sides of the tread have 70-80 second pitches respectively. The types of the first pitch are 3-5. The types of the second pitch are 3-5. When the tread pitch is arranged along the circumferential direction, a multi-level variable pitch arrangement is adopted. In this way, the contact area between the tread and the ground can be ensured, the grip can be improved, and the tire noise can be effectively reduced.

[0029] Preferably, a plurality of transverse elastic traction strips are uniformly pre-embedded inside at least one tread strip 130 along 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 forces are the same, the deformation amount is smaller than that of the tread, which can increase the contact area between the tread and the ground when the forces are applied, thereby improving the grip.

[0030] After testing, the wet skid test result of the tire for new energy vehicles provided by the present invention is 1.69, and the noise test result is 71 decibels, which is suitable for new energy vehicles with higher requirements for tire wear.

[0031] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0035] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A tire for new energy vehicles, It is characterized in that A plurality of mutually parallel longitudinal grooves are arranged in the middle of the tread of the tire for new energy vehicles, and a plurality of mutually parallel transverse grooves are arranged on opposite sides of the tread; each of the transverse grooves is connected with the longitudinal grooves on the corresponding side to form a guide groove; a tread strip is formed between each two adjacent longitudinal grooves; a tread block is formed between each two adjacent transverse grooves; a first rigid balancing unit is installed on each tread block; a plurality of water film destroying structures are uniformly formed in each longitudinal groove along the extension direction; and a plurality of second rigid balancing units are uniformly installed along the extension direction of at least one of the tread strips.

2. The tire for new energy vehicles according to claim 1, It is characterized in that Each of the first rigid balancing units is a steel bar embedded in the surface of one of the pattern blocks.

3. The tire for new energy vehicles according to claim 1, It is characterized in that Each of the first rigid balancing units has a length of 20 mm to 40 mm, a thickness of 0.1 mm to 1.5 mm, and an embedding depth of 1 mm to 7 mm.

4. The tire for new energy vehicles according to claim 1, It is characterized in that Each of the second rigid balancing units comprises: A tread rib, mounted on the surface of the tread strip; The steel sheet is embedded in the surface of the pattern strip and connected with the pattern rib.

5. The tire for new energy vehicles according to claim 4, It is characterized in that The width of the rib is 1 mm to 8 mm, and the inclination angle is 1° to 5°.

6. The tire for new energy vehicles according to claim 1, It is characterized in that The depth of each water film destruction structure is 0.1mm-1.5mm.

7. The tire for new energy vehicles according to claim 1, It is characterized in that Each of the water film destruction structures is in a "V"-shaped structure as a whole, including a plurality of protrusions arranged at equal intervals.

8. The tire for new energy vehicles according to claim 1, It is characterized in that The middle part of the tread of the tire for new energy vehicles has 65-75 first pitches, and the opposite sides of the tread have 70-80 second pitches respectively.

9. The tire for new energy vehicles according to claim 8, It is characterized in that The types of the first pitches are 3 to 5; the types of the second pitches are 3 to 5.

10. The tire for new energy vehicles according to claim 1, It is characterized in that A plurality of transverse elastic traction strips are uniformly pre-buried inside at least one of the tread strips along the extension direction.

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