Aluminum alloy wheel

Abstract

The utility model provides an aluminum alloy wheel, and belongs to the technical research field of motor vehicle parts. In order to solve the problem that the sound absorption frequency of a sound absorption cavity of an existing wheel cannot be adjusted, the sound absorption cavity is formed in the aluminum alloy wheel, the sound absorption nozzles are additionally arranged in the sound absorption holes in the sound absorption cavity, and the sound absorption nozzles with different inner diameters are clamped in the sound absorption holes, so that a user can adjust the sound absorption frequency of the sound absorption cavity according to the driving environment of an automobile. The sound absorption nozzles with different inner diameters are selected to adjust the frequency range of noise absorbed by the sound absorption cavity.

Description

Technical Field

[0001] The utility model belongs to the technical research field of motor vehicle parts, and specifically relates to an aluminum alloy wheel. Background Art

[0002] Tire noise is the noise generated by the interaction between the tires of a moving vehicle and the road surface, the interaction between the tires and the air, and the deformation of the tires. It is one of the two main sources of automobile noise. The causes and mechanisms of tire noise are relatively complex. Although there are many factors that generate noise excitation sources, all tire and road noises originate from the mutual contact between the tires and the road, the deformation of the tires, and the interaction between the tires and the air. Therefore, the need to reduce the noise of wheels and tires is very urgent for the development of automobiles, especially for new energy vehicles, as it is a demand for the comfort of new energy vehicles.

[0003] Patent announcement number CN218400051U discloses a two-piece jointed hollow sound-absorbing wheel for a vehicle, comprising: a spoke formed with a first connection portion, and a rim formed with a second connection portion; wherein a resonance space is formed between the first connection portion and the second connection portion, and the resonance space is formed with a through hole connected to the outside. Noise can be reduced by changing the volume of the resonance space or by changing the area of ​​the through hole, and the resonance space can achieve lightweighting of the wheel.

[0004] However, in the above technical solution, a through hole is formed while forming a resonance space, and the noise frequency generated when the wheel travels on the ground in different environments is different. The area of ​​the through hole in the above technical solution cannot be changed and cannot be applied to driving environments on different grounds. Summary of the invention

[0005] The utility model aims to overcome the problem that the existing wheel cannot adjust the sound absorption frequency of the sound absorption cavity.

[0006] In order to achieve the above purpose, the technical idea adopted by the utility model is: a sound-absorbing cavity is set on the aluminum alloy wheel, and a sound-absorbing nozzle is added to the sound-absorbing hole on the sound-absorbing cavity that is connected to the outside world, and sound-absorbing nozzles with different inner diameters are clamped in the sound-absorbing hole. In this way, the user can choose sound-absorbing nozzles with different inner diameters according to the driving environment of the car to adjust the noise frequency range absorbed by the sound-absorbing cavity.

[0007] Based on the above technical ideas, the technical solution adopted by the utility model is:

[0008] An aluminum alloy wheel comprises a wheel spoke and a wheel rim, wherein the wheel spoke comprises an upper cavity, and the wheel rim comprises a lower cavity; the upper cavity and the lower cavity are connected to form a sound absorbing cavity; and further comprises:

[0009] The sound-absorbing nozzle comprises: a sound-absorbing nozzle body and an open ring connected to the sound-absorbing nozzle body;

[0010] The sound absorbing nozzle body is clamped in the sound absorbing hole communicated with the sound absorbing cavity.

[0011] To further limit the above technical solution, preferably, the sound absorbing nozzle is a "T"-shaped structure.

[0012] For the sound absorbing nozzle in the above technical solution, further, a limiting ring is provided at one end of the sound absorbing nozzle body away from the open ring.

[0013] As a further limitation of the above technical solution, an annular air bag is also provided on the inner surface of the sound absorbing nozzle.

[0014] For the annular airbag in the above technical solution, further, the annular airbag includes a plurality of cylindrical airbags and an elastic connecting layer arranged on the surface of the cylindrical airbags.

[0015] As a further limitation of the above technical solution, a connecting layer is provided on the outer surface of the annular airbag.

[0016] Beneficial effects of the utility model:

[0017] The utility model evenly arranges a plurality of sound absorbing holes connected to the outside on the sound absorbing cavity, and adds sound absorbing nozzles in the sound absorbing holes, and clamps the sound absorbing nozzles with different inner diameters in the sound absorbing holes. In this way, the user can select the sound absorbing nozzles with different inner diameters according to the driving environment of the car to adjust the noise frequency range absorbed by the sound absorbing cavity.

[0018] Secondly, an open ring is provided at one end of the sound-absorbing nozzle body, and a limiting ring is provided at the other end. Thus, when installing the sound-absorbing nozzle, one end of the open ring can be directed toward the outside of the wheel, and the end provided with the limiting ring can be inserted into the aluminum alloy wheel, so that the sound-absorbing nozzle body is firmly stuck in the sound-absorbing hole.

[0019] In addition, an annular air bag is provided in the sound-absorbing nozzle. Gas can be filled into the annular air bag on the basis of the sound-absorbing nozzle. The inner diameter of the through hole formed by the annular air bag can be changed by controlling the volume of the filled gas, thereby further changing the inner diameter of the sound-absorbing nozzle, making the operation more convenient and quick.

[0020] Moreover, an elastic connecting layer is provided on the inner surface of the annular airbag. When the annular airbag is not inflated, the elastic connecting layer is stretched open, and when the annular airbag is inflated, the inner diameter of the through hole formed by the elastic connecting layer under the action of the annular airbag is reduced. In this way, regardless of whether the annular airbag is fully inflated, the inner surface of the sound-absorbing nozzle can be guaranteed to be flat, so that the frequency of the noise absorbed by the sound-absorbing cavity is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of an aluminum alloy wheel provided by the utility model;

[0023] Figure 2 for Figure 1 A cross-sectional view of an aluminum alloy wheel is shown;

[0024] Figure 3 for Figure 2 A top view of the installation position of the sound absorbing nozzle shown;

[0025] Figure 4 for Figure 3 A partial enlarged view of the sound absorbing nozzle shown;

[0026] Figure 5 It is a schematic diagram of the connection between the annular airbag and the sound absorbing nozzle;

[0027] Figure 6 for Figure 4 A quarter cross-section of the annular airbag is shown.

[0028] Among them, 1. sound-absorbing nozzle; 11. open ring; 12. sound-absorbing nozzle body; 13. limiting ring; 2. sound-absorbing hole; 3. sound-absorbing cavity; 31. upper cavity; 32. lower cavity; 4. spokes; 5. rim; 6. annular airbag; 61. cylindrical airbag; 62. elastic connecting layer. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "length direction", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Example 1

[0032] like Figure 1-4 As shown, an aluminum alloy wheel provided by the utility model includes a wheel spoke 4 and a wheel rim 5. The wheel spoke 4 includes an upper cavity 31, and the wheel rim 5 includes a lower cavity 32.

[0033] Specifically, the spoke 4 is provided with a plurality of evenly distributed upper cavities 31, and correspondingly, the rim 5 is provided with a lower cavity 32 matched with the upper cavity 31, wherein the size and shape of the upper cavity 31 are the same as those of the lower cavity 32, and the positions correspond to each other, so that the spoke 4 and the rim 5 are connected by stir friction welding, so that the plurality of upper cavities 31 correspond one-to-one with the lower cavity 32 and merge to form a plurality of sound-absorbing cavities 3.

[0034] Among them, each sound-absorbing cavity 3 is provided with a sound-absorbing hole 2 connected to the outside. Figure 3 As shown, this embodiment is described by taking four sound absorbing cavities 3, each of which is provided with a sound absorbing hole 2 as an example.

[0035] The frequency range of noise absorbed by the sound absorbing cavity 3 is related to the volume of the sound absorbing cavity 3 and the aperture of the sound absorbing hole 2 communicating with the outside.

[0036] Therefore, a sound absorbing nozzle 1 is added to the sound absorbing hole 2, and the inner diameter of the sound absorbing nozzle 1 is changed to change the aperture of the sound absorbing hole 2, thereby changing the frequency range of noise absorbed by the sound absorbing cavity 3; and the material of the spoke 4 and the rim 5 provided in the embodiment of the utility model are both aluminum alloy, so that the aluminum alloy sound absorbing wheel with a sound absorbing cavity provided by the utility model is more lightweight. Figure 3 As shown, this embodiment is described by taking a sound absorbing nozzle 1 as an example. In practical applications, each sound absorbing hole 2 can be equipped with a sound absorbing nozzle 1.

[0037] Specifically, the sound-absorbing nozzle 1 includes an open ring 11 and a sound-absorbing nozzle body 12. The open ring 11 is arranged at one end of the sound-absorbing nozzle body 12 close to the outer side of the aluminum alloy wheel; the open ring 11 is used to increase the airtightness between the sound-absorbing nozzle body 12 and the sound-absorbing hole 2. Further, the sound-absorbing nozzle 1 also includes a limiting ring 13; the limiting ring 13 is arranged at one end of the sound-absorbing nozzle body 13 away from the open ring 11, and is fixedly connected to the sound-absorbing nozzle body 12. Specifically, the limiting ring 13 is connected to the sound-absorbing nozzle body 13 in an integrated manner.

[0038] The limiting ring 13 is an annular thin sheet structure, and its material can be elastic plastic or rubber; in this embodiment, the thickness of the limiting ring 13 is 1 mm. In this way, in actual use, the sound absorbing nozzle 1 inserts one end provided with the limiting ring 13 into the sound absorbing hole 2, and the limiting ring 13 is deformed under the restriction of the sound absorbing hole 2, and then returns to the original state after passing through the sound absorbing hole 2, so that the end of the sound absorbing nozzle 1 located inside the sound absorbing cavity 3 is fixed.

[0039] Specifically, the outer diameter of the sound absorbing nozzle body 1 is slightly larger than the aperture of the sound absorbing hole 2, the outer diameters of the limiting ring 13 and the open ring 12 are larger than the aperture of the sound absorbing hole 2, and the inner diameters of the limiting ring 13 and the open ring 12 are the same as the inner diameter of the sound absorbing nozzle body 1, so that the sound absorbing nozzle body 12 can be interference fit with the sound absorbing hole 2, so that the sound absorbing nozzle body 12 is tightly clamped in the sound absorbing hole 2.

[0040] For example, when the diameter of the sound absorbing hole 2 is 10 mm, the outer diameter of the sound absorbing nozzle 1 provided in the embodiment of the utility model is 12 mm, and the inner diameter is 8 mm.

[0041] In actual application, a variety of inner diameter specifications of the sound absorbing nozzle 1 can be provided, and the sound absorbing nozzle 1 with the corresponding inner diameter can be selected according to the usage scenario. In actual use, the sound absorbing nozzle 1 and the sound absorbing hole 2 are interference fit so that the sound absorbing nozzle 1 is firmly stuck in the sound absorbing hole 2.

[0042] Implementation Cases:

[0043] The end of the sound absorbing nozzle 1 provided with the limiting ring 13 is inserted into the sound absorbing hole 2 , and then the limiting ring 13 is passed out of the sound absorbing hole 2 , and the sound absorbing nozzle body 12 is tightly clamped in the sound absorbing hole 2 through the opening ring 11 and the limiting ring 13 .

[0044] It should be noted that the material of the sound absorbing nozzle 1 provided in the embodiment of the utility model can be rubber. Example 2

[0045] Based on Example 1, different from Example 1, Figure 5-6As shown, the sound-absorbing nozzle 1 provided in this embodiment is provided with an annular airbag 6 on the inner side. The annular airbag 6 is fixedly connected to the inner surface of the sound-absorbing nozzle 1, and an inflation port is provided on the outer side of the annular airbag 6. When in use, the annular airbag 6 can be inflated according to demand to change the inner diameter of the sound-absorbing nozzle 1, so that the inner diameter of the through hole formed by the annular airbag 6 can be changed by controlling the air pressure in the annular airbag 6 on the basis of the sound-absorbing nozzle 1. The annular airbag 6 is an annular structure, and an inflation port is provided on one side close to the outer side. The connection method of the annular airbag 6 and the sound-absorbing nozzle 1 can be adhesive or bolted.

[0046] The inner diameter of the sound absorbing nozzle 1 provided in this embodiment is specifically 10 mm. When the annular airbag 6 is fully inflated, its inner diameter is 2 mm.

[0047] Specifically, the annular airbag 6 is formed by a plurality of cylindrical airbags 61 surrounding the inner wall of the sound absorbing nozzle 1, and an elastic connection layer 62 is provided on the outer surface of the annular airbag 6. When the cylindrical airbag 61 is inflated, the elastic connection layer 62 is not stretched, and the opening formed by the elastic connection layer 62 is the smallest; when the cylindrical airbag 61 is not inflated, the elastic connection layer 62 is stretched open due to the connection with the sound absorbing nozzle 1, and the opening formed by the elastic connection layer 62 is the largest. Specifically, the material of the elastic connection layer 62 can be an elastic band.

[0048] In this way, by adding the elastic connection layer 62 to the inner surface of the cylindrical airbag 61 , the inner surface of the annular airbag 6 can be kept smooth regardless of whether the cylindrical airbag 61 is filled with gas.

[0049] The elastic connection layer 62 is a cylindrical structure. Further, an annular connection layer is provided at both ends of the elastic connection layer 62 to completely wrap the cylindrical airbag 61 .

[0050] Implementation Cases:

[0051] First, the end of the sound-absorbing nozzle 1 provided with the limiting ring 13 is inserted into the sound-absorbing hole 2, and then the limiting ring 13 is passed through the sound-absorbing hole 2, and the sound-absorbing nozzle body 12 is tightly clamped in the sound-absorbing hole 2 through the opening ring 11 and the limiting ring 13; finally, the cylindrical airbag 61 is inflated so that the inner diameter of the through hole formed by the connecting layer 62 reaches the target value, and then the inflation of the cylindrical airbag 61 is stopped. At this time, the inner diameter adjustment of the sound-absorbing nozzle 1 is completed.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. An aluminum alloy wheel, comprising a wheel spoke (4) and a wheel rim (5), wherein the wheel spoke (4) comprises an upper cavity (31), and the wheel rim (5) comprises a lower cavity (32); the upper cavity (31) and the lower cavity (32) are connected to form a sound absorbing cavity (3); characterized in that: Also includes: A sound-absorbing nozzle (1) comprises: a sound-absorbing nozzle body (12) and an open ring (11) connected to the sound-absorbing nozzle body (12); The sound absorbing nozzle body (12) is clamped in a sound absorbing hole (2) that is in communication with the sound absorbing cavity (3).

2. The aluminum alloy wheel according to claim 1, characterized in that: The sound-absorbing nozzle (1) is a "T"-shaped structure.

3. The aluminum alloy wheel according to claim 2, characterized in that: A limiting ring (13) is provided at one end of the sound absorbing nozzle body (12) away from the open ring (11).

4. The aluminum alloy wheel according to claim 2, characterized in that: An annular air bag (6) is also provided on the inner surface of the sound absorbing nozzle (1).

5. The aluminum alloy wheel according to claim 4, characterized in that: The annular airbag (6) comprises a plurality of cylindrical airbags (61) and an elastic connection layer (62) arranged on the surface of the cylindrical airbags (61).

Images