New energy vehicle mute tire

Abstract

The utility model discloses a mute tire for a new energy vehicle, and belongs to the technical field related to tire production. The tire comprises a tire body and a mute sponge body arranged on the inner wall of the tire body, the middle part of one side surface, attached to the inner wall of the tire body, of the mute sponge body protrudes outwards to form an arc-shaped hillside convex surface 9; an arc-shaped concave surface matched with the arc-shaped slope convex surface 9 on the mute sponge body is arranged on the inner wall of the tire body; a buffering cavity extending in the length direction of the mute sponge body is formed between the upper surface and the lower surface of the mute sponge body. A vertical telescopic supporting piece is arranged in the buffer cavity; a plurality of mute blocks are arranged in the center of the top of the arc-shaped hillside convex face 9, and a plurality of mute grooves matched with the mute blocks are formed in the arc-shaped concave face of the inner wall of the tire body. The mute sponge with a specific structure in the tire is more stable in the high-speed running process of the tire, and is slightly influenced by tire bumping and motor vibration.

Description

Technical Field

[0001] The present application belongs to the technical field related to tire production and relates to a silent tire for new energy vehicles. Background Art

[0002] Silent sponge tires are made by adhering silent sponges inside the tires. They can absorb the resonance between the tires and the road surface, effectively reducing the tire noise generated during the driving process of the vehicle. They can well meet the new requirements for tire sound insulation performance put forward by the development of new energy vehicles.

[0003] However, the current installation of silent sponges on the inner wall of tires is basically done by applying glue and manually sticking strips of silent sponges on; during long-term high-speed driving, the tires themselves roll at high speed, and EVs are purely driven by motors, so the initial torque is higher than that of fuel vehicles. This makes the silent sponges of EV tires subject to vibration and bumps, and there is a risk of glue peeling or even falling off, thus affecting the driving experience. Utility Model Content

[0004] In order to solve the above problems, the present application proposes a silent tire for new energy vehicles. The silent sponge with a specific structure in the tire is more stable during high-speed driving of the tire, and is less affected by tire bumps and motor vibrations, thus solving the risk of the silent sponge becoming sticky or even falling off during long-term high-speed driving.

[0005] The specific technical solutions of this application are as follows:

[0006] A silent tire for a new energy vehicle, comprising: a tire carcass, and a silent sponge body arranged on the inner wall of the tire carcass;

[0007] The middle part of the side surface of the silent sponge body that is in contact with the inner wall of the tire carcass protrudes outward to form an arc-shaped hillside convex surface; the inner wall of the tire carcass is provided with an arc-shaped concave surface that matches the arc-shaped hillside convex surface on the silent sponge body; a buffer cavity extending along the length direction of the silent sponge body is provided between the upper surface and the lower surface of the silent sponge body; a vertical retractable support member is provided in the buffer cavity;

[0008] A plurality of silent blocks are arranged at the center of the top of the arc-shaped convex surface of the hillside, and a plurality of silent grooves matching with the silent blocks are arranged on the arc-shaped concave surface of the inner wall of the tire carcass.

[0009] Optionally, both sides of the convex surface of the arc-shaped hillside are beveled, and the bevel angle is 55-65; the height of the silent sponge body is 1-1.2 times the width.

[0010] Optionally, the height of the buffer cavity is 2 / 9-1 / 3 of the height of the silent sponge.

[0011] Optionally, the material of the retractable support member includes metal or alloy.

[0012] Optionally, the width of the silent sponge is 5 / 7-5 / 6 of the inner width of the tire carcass.

[0013] Optionally, an adhesive veneer is provided on the convex surface of the arc-shaped hillside to achieve an adhesive connection between the silent sponge body and the tire carcass.

[0014] Optionally, the silent blocks are evenly and equidistantly arranged along the length direction of the silent sponge body;

[0015] The thickness of the silent block is 1 / 5-1 / 3 of the thickness of the silent sponge.

[0016] Optionally, the thickness of the silent sponge is 1 / 5-1 / 3 of the thickness of the tire carcass.

[0017] Optionally, one end of the silent sponge is provided with an angular fastening strip, and the other end is provided with a fastening groove matched with the angular fastening strip. Further, the width of the fastening strip is 1 / 3-1 / 2 of the width of the silent sponge; the thickness of the fastening strip is 1 / 3-1 / 2 of the thickness of the silent sponge.

[0018] The beneficial effects of this application include but are not limited to:

[0019] 1. The setting of the silent sponge body, silent blocks and silent grooves of the present application can further enhance the stability between the silent sponge body and the tire carcass; the setting of the arc-shaped hillside convex surface of the silent sponge body can enable the silent sponge body to disperse the external forces such as squeezing force back and forth along the arc surface of the slope when subjected to bumpy high-speed driving, thereby playing the role of "decomposing external forces".

[0020] 2. Furthermore, the beveled design of the two sides of the silent sponge is similar to the bottom angles of the two sides of a triangle, which makes it very stable in a vibrating and bumpy environment. The beveled angle value is further limited to 55-65; making the bottom similar to the bottom of an equilateral triangle, further improving the stability of the silent sponge; the setting of the buffer cavity in the silent sponge allows the silent sponge to have a good deformation space when the tire is deformed by external force, minimizing the impact of the external force above the silent sponge on the bottom.

[0021] 3. Furthermore, the presence of a retractable support buffer cavity in the silent sponge body allows the silent sponge body to have a good deformation space when the tire is deformed by external force, thereby minimizing the impact of external forces above the silent sponge body on the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the tire of this application;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the silent sponge body, a local component of the present application, in a flat-laying state without being installed;

[0025] Figure 3 A schematic diagram of the vertical cross-sectional structure of the mute sponge body of a local component of the present application in the height direction;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the silent sponge body, a local component of the present application, in a connected state;

[0027] Figure 5 It is a schematic diagram of the vertical cross-sectional structure of the local components of the present application, the silent sponge body and the tire carcass in the length direction.

[0028] List of parts and reference numerals:

[0029] 1 tire carcass, 2 silent sponge body, 3 silent block, 4 silent groove, 5 fixing strip, 6 fixing groove, 7 buffer cavity, 8 retractable support member, 9 arc-shaped hillside convex surface. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0031] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0033] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 a limitation on the present application.

[0034] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In this application, 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 connection; it can be a mechanical connection, an electrical connection, or a communication; 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0037] Example 1 Figure 1-5 As shown, a silent tire for new energy vehicles comprises: a tire carcass 1 (made of rubber), a silent sponge body 2 arranged on the inner wall of the tire carcass 1;

[0038] The middle part of the side surface of the silent sponge 2 that is in contact with the inner wall of the tire carcass 1 protrudes outward to form an arc-shaped hillside convex surface 9; the inner wall of the tire carcass 1 is provided with an arc-shaped concave surface that matches the arc-shaped hillside convex surface 9 on the silent sponge 2; a buffer cavity 7 extending along the length direction of the silent sponge 2 is provided between the upper and lower surfaces of the silent sponge 2; a vertical retractable support member 8 is provided in the buffer cavity 7;

[0039] A plurality of silent blocks 3 are arranged at the top center of the arc-shaped hillside convex surface 9, and a plurality of silent grooves 4 matching with the silent blocks 3 are arranged on the arc-shaped concave surface of the inner wall of the tire carcass 1. The surfaces of the silent blocks 3 are all provided with adhesive veneers, which are inserted into the silent grooves 4 and bonded.

[0040] In the specific use process, first tear off the curved hillside convex surface 9 of the silent sponge 2 and the adhesive veneer on the silent block 3 (or directly apply adhesive), so that the surface is sticky, and the curved hillside convex surface 9 is gradually fitted with the curved concave surface set on the inner wall of the tire carcass 1, and the silent blocks 3 set on the curved hillside convex surface 9 also correspond to the silent grooves 4 on the curved concave surface one by one, until the silent sponge 2 is completely bonded to the inner wall of the tire carcass 1. Finally, the angular fixing strip 5 at one end of the silent sponge 2 is embedded in the fixing groove 6 at the other end to achieve the connection of the silent sponge 2 port to form a ring-shaped silent sponge 2 fitted to the inner wall of the tire carcass 1.

[0041] During high-speed driving of the vehicle, the setting of the silent block 3 and the silent groove 4 can increase the contact area. The silent block 3 is also fully provided with an adhesive surface, which is inserted into the silent groove 4 of the tire carcass 1 to achieve a larger area of ​​adhesive connection, further enhancing the stability between the silent sponge 2 and the tire carcass 1. The setting of the arc-shaped hillside convex surface 9 protruding outward from the middle of the side surface that fits the inner wall of the tire carcass 1 can, on the one hand, increase the contact area between the silent sponge 2 and the inner wall of the tire carcass 1; on the other hand, when the silent sponge 2 is squeezed by external force in the bumpy state of high-speed driving, it can disperse the external force received back and forth along the sloped arc surface to play the role of "decomposing external force"; thereby making the bonding part very stable, less affected by the bumps of the tire and the vibration of the generator, and the silent sponge 2 is not easy to fall off.

[0042] The existence of the buffer cavity 7 equipped with a retractable support member 8 in the silent sponge body 2 enables the silent sponge body 2 to have a good deformation space when the tire is deformed by external force, thereby minimizing the influence of the external force above the silent sponge body 2 on the bottom. The retractable support member 8 (specifically a spring made of high carbon steel in this embodiment) can quickly restore the silent sponge body 2 after being subjected to external force. In addition, high carbon steel has high strength and hardness, high elastic limit and fatigue limit, and long service life.

[0043] As a preferred embodiment, the two sides of the arc-shaped hillside convex surface 9 are beveled (beveled from top to bottom, similar to the bottom of a regular triangle), and the bevel angle is 55-65 (such as Figure 3 ∠A, ∠B; ∠A=∠B).

[0044] The beveled design of the two sides of the silent sponge 2 is similar to the two bottom angles of a triangle, so that it has strong stability in a driving environment with left and right vibrations and bumps, and is less affected by vibrations and bumps, and the silent sponge 2 is not easy to fall off. The beveled angle value is further limited to 55-65; so that the bottom is similar to the bottom of an equilateral triangle (the beveled angle value in Example 1 is 60), at this time, the stability of the silent sponge 2 is the strongest.

[0045] As a preferred embodiment, the material of the retractable support member 8 includes metal or alloy.

[0046] As a preferred embodiment, the height of the buffer cavity 7 is 2 / 9-1 / 3 of the height of the silent sponge 2. The buffer cavity 7 within this range can not only provide the silent sponge 2 with sufficient deformation space but also ensure that the silent sponge 2 has a certain thickness and weight to achieve a good silent effect.

[0047] As a preferred embodiment, an adhesive veneer is provided on the arc-shaped hillside convex surface 9 (including the silent block 3 which is also entirely provided with an adhesive veneer) to achieve an adhesive connection between the silent sponge body 2 and the tire carcass 1 .

[0048] As a preferred embodiment, the silent blocks 3 are evenly and equidistantly arranged along the length direction of the silent sponge 2; the thickness of the silent blocks 3 is 1 / 5-1 / 3 of the thickness of the silent sponge 2 (excluding the silent blocks 3), which can further enhance the stability of the silent sponge 2 and the tire carcass 1.

[0049] As a preferred embodiment, the width of the silent sponge 2 is 5 / 7-5 / 6 of the inner width of the tire carcass 1. In this way, the silent sponge 2 is convenient for bonding and has a good silent effect.

[0050] As a preferred embodiment, the thickness of the silent sponge 2 is 1 / 5-1 / 3 of the thickness of the tire carcass 1. In this way, the silent sponge 2 is convenient to bond and has good stability.

[0051] As a preferred embodiment, one end of the silent sponge 2 is provided with an angular fastening strip 5, and the other end is provided with a fastening groove 6 matched with the angular fastening strip 5. Further, the width of the fastening strip 5 is 1 / 3-1 / 2 of the width of the silent sponge 2; the thickness of the fastening strip 5 is 1 / 3-1 / 2 of the thickness of the silent sponge 2.

[0052] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0053] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A silent tire for new energy vehicles, characterized in that: include: A tire carcass, and a sound-proof sponge body arranged on the inner wall of the tire carcass; The middle part of the side surface of the silent sponge body that is in contact with the inner wall of the tire carcass protrudes outward to form an arc-shaped hillside convex surface; the inner wall of the tire carcass is provided with an arc-shaped concave surface that matches the arc-shaped hillside convex surface on the silent sponge body; a buffer cavity extending along the length direction of the silent sponge body is provided between the upper surface and the lower surface of the silent sponge body; a vertical retractable support member is provided in the buffer cavity; A plurality of silent blocks are arranged at the center of the top of the arc-shaped convex surface of the hillside, and a plurality of silent grooves matching with the silent blocks are arranged on the arc-shaped concave surface of the inner wall of the tire carcass.

2. The tire according to claim 1, characterized in that The two sides of the convex surface of the arc-shaped hillside are beveled, and the bevel angle value is 55-65.

3. The tire according to claim 1, characterized in that The height of the buffer cavity is 2 / 9-1 / 3 of the height of the silent sponge.

4. The tire according to claim 1, characterized in that The material of the retractable support member includes metal or alloy.

5. The tire according to claim 1, characterized in that The arc-shaped hillside convex surface is provided with an adhesive veneer to achieve the adhesive connection between the silent sponge body and the tire carcass.

6. The tire according to claim 1, characterized in that The silent blocks are evenly and equidistantly arranged along the length direction of the silent sponge; The thickness of the silent block is 1 / 5-1 / 3 of the thickness of the silent sponge.

7. The tire according to claim 1, characterized in that The width of the silent sponge is 5 / 7-5 / 6 of the inner width of the tire carcass.

8. The tire according to claim 1, characterized in that The thickness of the silent sponge is 1 / 5-1 / 3 of the tire carcass thickness.

9. The tire according to claim 1, characterized in that One end of the sound-absorbing sponge body is provided with an angular fastening strip, and the other end is provided with a fastening groove matched with the angular fastening strip.

10. The tire according to claim 9, characterized in that The width of the fixing strip is 1 / 3-1 / 2 of the width of the silent sponge; the thickness of the fixing strip is 1 / 3-1 / 2 of the thickness of the silent sponge.

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