Vibration energy recovery device, hub and vehicle

Abstract

The utility model provides a vibration energy recovery device, a hub and a vehicle. The vibration energy recovery device is applied to the hub of the vehicle. The vibration energy recovery device comprises a rotating part, at least one vibration absorption assembly and an electric energy recovery assembly. The rotating piece is configured to be rotatably connected to a hub main body of the hub; the vibration absorption assembly comprises a first elastic part, a first mass part and a first energy conversion part, one end of the first elastic part is connected to the rotating part, the first mass part is connected to the other end, away from the rotating part, of the first elastic part so that the first elastic part can vibrate, and the first energy conversion part is arranged on the first elastic part and used for converting energy into electric energy. The first energy conversion piece is configured to convert mechanical energy generated by vibration of the first elastic piece into electric energy; the electric energy recovery assembly is electrically coupled with the first elastic piece and the first energy conversion piece, and the electric energy recovery assembly is configured to absorb the electric energy converted by the first energy conversion piece.

Description

Technical Field

[0001] This application relates to the field of vehicle vibration damping technology, and in particular to a vibration energy recovery device, a wheel hub, and a vehicle. Background Technology

[0002] Vehicles vibrate due to uneven road surfaces while driving, which deteriorates the driving experience. Utility Model Content

[0003] This application provides a vibration energy recovery device, a wheel hub, and a vehicle to solve the problem of poor driving experience caused by vehicle vibration in the known art.

[0004] This application provides a vibration energy recovery device applied to a vehicle wheel hub; the vibration energy recovery device includes a rotating component, at least one vibration-absorbing component, and an electrical energy recovery component; the rotating component is configured to be rotatably connected to the wheel hub body; the vibration-absorbing component includes a first elastic component, a first mass component, and a first energy conversion component, one end of the first elastic component is connected to the rotating component, the first mass component is connected to the other end of the first elastic component away from the rotating component, so that the first elastic component can vibrate, and the first energy conversion component is disposed on the first elastic component and configured to convert the mechanical energy generated by the vibration of the first elastic component into electrical energy.

[0005] It is understood that in the vibration energy recovery device of this application, the first mass component drives the first elastic component to vibrate, thereby enabling the first mass component and the first elastic component to jointly form a vibration-absorbing structure. The vibration frequency of the vibration-absorbing structure can be the same as a certain natural frequency of the vehicle to achieve the vibration absorption function and ensure the driving experience of the vehicle. In addition, during the vibration of the first elastic component, the first energy conversion component can convert the mechanical energy generated by the vibration of the first elastic component into electrical energy, and collect and store the electrical energy through the electrical energy recovery component. The stored electrical energy can then be applied to other electrical devices to compensate for the increased vehicle cost caused by adding the vibration energy recovery device.

[0006] In one possible implementation, the first mass member is configured to allow the first elastic member to vibrate along a first direction to form a first vibration-absorbing vibration, the vehicle having a first natural vibration along the first direction, the frequency of the first vibration-absorbing vibration being the same as the frequency of the first natural vibration.

[0007] It is understandable that the vibration absorption component absorbs the vibration of the vehicle along the first direction by causing the first elastic element to vibrate along the first direction through the first mass element. The frequency of the first vibration absorption vibration is the same as the frequency of the first natural vibration.

[0008] In one possible implementation, the vibration-absorbing assembly further includes a second mass member connected to the rotating member. The second mass member is configured to maintain the rotating member in a vibration-absorbing posture. When the rotating member is in the vibration-absorbing posture, the first elastic member can vibrate along the first direction.

[0009] It is understandable that the second mass component is used to balance the force exerted by the first mass component on the rotating component under its own weight, thereby ensuring that the rotating component always maintains a vibration-absorbing posture, and ensuring that the first mass component and the first elastic component can continuously form the first vibration-absorbing vibration.

[0010] In one possible implementation, the vibration-absorbing assembly further includes a second elastic element and a second energy conversion element. One end of the second elastic element is connected to the end of the rotating element away from the first elastic element, and the second mass element is connected to the other end of the second elastic element away from the rotating element. The second energy conversion element is disposed on the second elastic element and is configured to convert the mechanical energy generated by the vibration of the second elastic element into electrical energy.

[0011] Understandably, the second mass component not only balances the force exerted on the rotating component by the first mass component under its own weight, but also drives the second elastic component to vibrate. In turn, the mechanical energy generated by the vibration of the second elastic component is converted into electrical energy through the second energy conversion component, thereby improving the electrical energy generation capability of the vibration absorption component.

[0012] In one possible implementation, when the rotating member is in the vibration-absorbing posture, the second elastic member can vibrate along the first direction.

[0013] It is understandable that when the rotating component is in a vibration-absorbing posture, the second mass component can drive the second elastic component to vibrate along the first direction, so that both the first elastic component and the second elastic component of the vibration-absorbing assembly can vibrate in the first direction, thereby enabling the vibration-absorbing assembly to absorb two vibrations of different frequencies.

[0014] In one possible implementation, when the second elastic element vibrates along the first direction, the second elastic element forms a second vibration-absorbing vibration, and the vehicle has a second natural vibration along the first direction, the frequency of the second vibration-absorbing vibration being the same as the frequency of the second natural vibration.

[0015] It is understandable that the second mass component drives the second elastic component to vibrate along the first direction, thereby forming a second vibration-absorbing vibration. The frequency of the second vibration-absorbing vibration is the same as the frequency of the second natural vibration, so that the vibration-absorbing component can absorb the vibration of the vehicle along the first direction.

[0016] In one possible implementation, the energy recovery component is electrically coupled to the second elastic element and the second energy conversion element, and the energy recovery component is configured to absorb the electrical energy converted by the second energy conversion element.

[0017] It is understandable that the energy recovery component forms a current loop after being electrically coupled with the second elastic element and the second energy conversion element, thereby storing and reusing the electrical energy converted by the second energy conversion element.

[0018] In one possible implementation, the rotation axis of the rotating component is aligned with the rotation axis of the hub body.

[0019] It is understandable that the rotation axis of the rotating component is set to coincide with the rotation axis of the wheel hub body to ensure that the two cantilevered vibration absorption structures formed by the vibration absorption assembly can absorb the inherent vibration of the suspension and the inherent vibration of the tire cavity at the wheel center caused by the inherent characteristics of the suspension and tire system itself.

[0020] This application also provides a wheel hub, including a wheel hub body and the aforementioned vibration energy recovery device, wherein the rotating component of the vibration energy recovery device is rotatably connected to the wheel hub body.

[0021] It is understandable that by installing a vibration energy recovery device on the wheel hub body, the inherent vibrations of the suspension and tire cavity formed at the wheel center due to the inherent characteristics of the suspension and tire system itself can be absorbed.

[0022] This application also provides a vehicle, including a body and the aforementioned wheel hub, the wheel hub being rotatably connected to the body.

[0023] Understandably, the vehicle has wheel hubs equipped with vibration energy recovery devices to improve the ride comfort. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the vibration energy recovery device of this application in one embodiment.

[0025] Figure 2 This is a schematic diagram of the frequency domain curve of the vertical vibration of the wheel center of a vehicle.

[0026] Figure 3 This is a schematic diagram of the structure of the wheel hub of this application in one embodiment.

[0027] Figure 4 This is a side view of the wheel hub of this application in one embodiment.

[0028] Figure 5 This is a schematic diagram of the structure of the vehicle according to one embodiment of the present application.

[0029] Key component symbols: 300, vehicle; 200, wheel hub; 100, vibration energy recovery device; Z, first direction; X, second direction; Y, third direction; 10, rotating component; 11, first section; 12, second section; 13, main body; 131, first main body; 132, second main body; 20, vibration absorption assembly; 21, first mass component; 22, first elastic component; 23, first energy conversion component; 24, second mass component; 25, second elastic component; 26, second energy conversion component; 30, energy recovery assembly; 40, bearing component; 50, wheel hub body; 60, vehicle emblem; 70, vehicle body.

[0030] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0031] The following description will refer to the accompanying drawings to provide a more complete picture of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components.

[0032] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0033] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0034] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 2As shown, an embodiment of this application provides a vibration energy recovery device 100, applied to the wheel hub 200 of a vehicle 300. The wheel hub 200 can be of various types, such as a suspended wheel hub 200. The vibration energy recovery device 100 includes a rotating component 10, at least one vibration-absorbing component 20, and an energy recovery component 30.

[0036] The rotating member 10 is configured to be rotatably connected to the hub body 50 of the hub 200, so that the rotating member 10 and the hub body 50 can rotate relative to each other. When the hub body 50 rotates, the rotating member 10 may not rotate with the hub body 50, thereby maintaining the posture of the rotating member 10 unchanged.

[0037] The vibration-absorbing assembly 20 includes a first elastic element 22, a first mass element 21, and a first energy conversion element 23. One end of the first elastic element 22 is connected to the rotating element 10, and the first mass element 21 is connected to the other end of the first elastic element 22 away from the rotating element 10, so that the first elastic element 22 can vibrate. Thus, the first mass element 21 and the first elastic element 22 together constitute a vibration-absorbing structure, which can vibrate under the excitation caused by the vibration of the car due to uneven road surface factors.

[0038] A first energy conversion element 23 is disposed on a first elastic element 22, and the first energy conversion element 23 is configured to convert the mechanical energy generated by the vibration of the first elastic element 22 into electrical energy. An energy recovery component 30 is electrically coupled to the first elastic element 22 and the first energy conversion element 23, and the energy recovery component 30 is configured to absorb the electrical energy converted by the first energy conversion element 23.

[0039] Thus, in the vibration energy recovery device 100 of this application, the first mass member 21 drives the first elastic vibration, thereby enabling the first mass member 21 and the first elastic member 22 to jointly form a vibration-absorbing structure. The vibration frequency of the vibration-absorbing structure can be the same as a certain natural frequency of the vehicle 300 to achieve the vibration absorption function and ensure the driving experience of the vehicle 300. In addition, during the vibration of the first elastic member 22, the first energy conversion member 23 can convert the mechanical energy generated by the vibration of the first elastic member 22 into electrical energy, and collect and store the electrical energy through the electrical energy recovery component 30. The stored electrical energy can then be applied to other electrical devices to compensate for the increased cost of the vehicle 300 caused by adding the vibration energy recovery device 100.

[0040] For ease of reading, this application introduces the terms first direction Z, second direction X, and third direction Y to describe embodiments of the application. First direction Z, second direction X, and third direction Y can be three non-parallel straight lines in space; further, first direction Z, second direction X, and third direction Y can be three mutually perpendicular directions in a three-dimensional coordinate system (three-dimensional Cartesian coordinate system). In subsequent embodiments, the first direction Z is described as the Z-axis direction of the three-dimensional coordinate system, the second direction X as the X-axis direction, and the third direction Y as the Y-axis direction. In this embodiment, first direction Z is the direction of the height of vehicle 300, second direction X is the direction of the length of vehicle 300, and third direction Y is the direction of the width of vehicle 300.

[0041] Please combine Figure 1 In one embodiment, the first mass member 21 is configured to allow the first elastic member 22 to vibrate along a first direction Z to generate a first vibration-absorbing vibration. The vehicle 300 has a first natural vibration along the first direction Z, and the frequency of the first vibration-absorbing vibration is the same as the frequency of the first natural vibration.

[0042] The first natural vibration is the tire acoustic cavity natural vibration corresponding to the wheel hub body 50 connected to the vibration energy recovery device 100. By setting parameters such as the weight of the first mass member 21 and the stiffness of the first elastic member 22, the frequency of the first natural vibration is made to be the same as the frequency of the tire acoustic cavity natural vibration, so as to achieve the effect of vibration absorption and avoid discomfort caused to the driver and passengers by the tire acoustic cavity natural vibration.

[0043] In this embodiment, the rotating member 10 includes a main body 13, a first section 11, and a second section 12. The main body 13, the first section 11, and the second section 12 are all generally elongated structures. The extension direction of the main body 13 is parallel to the second direction X, and the extension directions of the first section 11 and the second section 12 are both parallel to the first direction Z. Along the second direction X, the first section 11 and the second section 12 are respectively connected to opposite ends of the main body 13, and the main body 13, the first section 11, and the second section 12 are integrally formed. Along the first direction Z, the first section 11 is located above the main body 13, and the second section 12 is located below the main body 13.

[0044] The vibration energy recovery device 100 also includes a bearing member 40, the axis of which is parallel to the third direction Y. The bearing member 40 is connected to the side wall of the hub body 50, and the axis of the bearing member 40 coincides with the axis of the hub body 50. The main body 13 is rotatably connected to the bearing member 40, so that the main body 13 can rotate around the bearing member 40. When the hub body 50 rotates, since the main body 13 can rotate around the bearing member 40 connected to the hub body 50, the main body 13 does not rotate with the hub body 50, thereby ensuring that the posture of the rotating member 10 remains unchanged.

[0045] The first elastic element 22 is a square metal sheet, which makes it conductive and capable of elastic deformation. The first elastic element 22 is disposed along the second direction X, and one end of the first elastic element 22 is connected to the side of the first region 11 near the second region 12, and the first elastic element 22 is also connected to the end of the first region 11 away from the main body 13. The first mass element 21 is connected to the end of the first elastic element 22 away from the first region 11, so that the first elastic element 22 and the first mass element 21 can form a cantilever-like vibration-absorbing structure, thereby easily reciprocating along the first direction Z under the vibration excitation of the vehicle 300.

[0046] The first energy conversion element 23 is made of piezoelectric material and is attached to the top surface of the first elastic element 22. The positive and negative terminals of the energy recovery assembly 30 are electrically connected to the first elastic element 22 and the first energy conversion element 23 via conductive wires, respectively. Thus, when the first elastic element 22 vibrates, it applies pressure to the first energy conversion element 23, thereby generating an electric charge in the first energy conversion element 23. The charge moves in the current loop formed between the first elastic element 22, the first energy conversion element 23, and the energy recovery assembly 30, thereby realizing the absorption of electrical energy by the energy recovery assembly 30.

[0047] Please combine Figure 1 In one embodiment, the vibration-absorbing assembly 20 further includes a second mass 24 connected to the rotating member 10, and the second mass 24 is configured to maintain the rotating member 10 in a vibration-absorbing posture. When the rotating member 10 is in the vibration-absorbing posture, the first elastic member 22 can vibrate along the first direction Z.

[0048] The second mass member 24 is connected to the second section 12 to balance the force exerted by the first mass member 21 on the first section 11 due to its own weight, thereby ensuring that the rotating member 10 always maintains its posture, and thus ensuring that the first elastic member 22 is always placed along the second direction X, thereby ensuring that the vibration direction of the first elastic member 22 is the same as the vibration direction of the inherent vibration of the tire acoustic cavity.

[0049] Furthermore, the vibration-absorbing assembly 20 also includes a second elastic element 25 and a second energy conversion element 26. The second energy conversion element 26 is disposed on the second elastic element 25 and is configured to convert the mechanical energy generated by the vibration of the second elastic element 25 into electrical energy.

[0050] The second elastic member 25 is made of the same material as the first elastic member 22, and both are square metal sheets. The second elastic member 25 is disposed along the second direction X, and one end of the second elastic member 25 is connected to the side of the second section 12 near the first section 11, and the second elastic member 25 is connected to the end of the second section 12 away from the main body 13. The second mass member 24 is connected to the other end of the second elastic member 25 away from the second section 12, so that the second elastic member 25 and the second mass member 24 can form a cantilever-like vibration-absorbing structure, thereby easily reciprocating along the first direction Z under the vibration excitation of the vehicle 300.

[0051] The second energy conversion element 26 is attached to the bottom surface of the second elastic element 25, and the material of the second energy conversion element 26 is the same as that of the first energy conversion element 23. The energy recovery component 30 is electrically coupled to the second elastic element 25 and the second energy conversion element 26. The positive and negative terminals of the energy recovery component 30 are respectively electrically connected to the second elastic element 25 and the second energy conversion element 26 through conductive wires, so that the energy recovery component 30 absorbs the electrical energy converted by the second energy conversion element 26.

[0052] In this embodiment, when the rotating member 10 is in a vibration-absorbing posture, the second elastic member 25 can vibrate along the first direction Z. When the second elastic member 25 vibrates along the first direction Z, the second elastic member 25 forms a second vibration-absorbing vibration, and the vehicle 300 has a second natural vibration along the first direction Z. The frequency of the second vibration-absorbing vibration is the same as the frequency of the second natural vibration.

[0053] The second natural vibration is the suspension natural vibration corresponding to the wheel hub body 50 connected to the vibration energy recovery device 100. By setting parameters such as the weight of the second mass member 24 and the stiffness of the second elastic member 25, the frequency of the second natural vibration is made to be the same as the frequency of the suspension natural vibration, so as to achieve the effect of vibration absorption and avoid discomfort to the driver and passengers caused by the suspension natural vibration.

[0054] It needs to be explained that during vehicle 300's operation, due to road surface unevenness, vertical vibration peaks will occur at the wheel center of the wheel hub body 50 near 16Hz and 200Hz due to the inherent characteristics of the suspension and tire system. These are the aforementioned inherent vibrations of the suspension and tire acoustic cavity. Specifically, as follows... Figure 2 As shown, Figure 2The figure shows the frequency domain curve of the vertical vibration at the wheel center. The curves in the figure have larger amplitudes at 16Hz and 200Hz. However, the vertical vibration of the vehicle 300 is often useless and causes discomfort, so vibrations at these two frequencies often cause discomfort inside the vehicle and affect the comfort of the driver and passengers. Based on this, the rotation axis of the bearing 40 connected to the rotating component 10 is set to coincide with the rotation axis of the wheel hub body 50, so that the rotation axis of the bearing 40 coincides with the wheel center of the wheel hub body 50. This ensures that the two cantilevered vibration absorption structures formed by the vibration absorption assembly 20 can absorb the inherent vibration of the suspension and the inherent vibration of the tire cavity at the wheel center caused by the inherent characteristics of the suspension and tire system itself.

[0055] In addition, the first mass component 21 and the second mass component 24 are located on the upper and lower sides of the wheel center of the wheel hub body 50, respectively. That is, the above-mentioned two cantilever vibration absorption structures are formed on the upper and lower sides of the wheel center of the wheel hub body 50, so as to significantly improve the vibration amplitude of the wheel center of the wheel hub body 50 at frequencies of 16Hz and 200Hz through the combined effect of the two cantilever vibration absorption structures, thus ensuring the comfort of the driver and passengers.

[0056] In this embodiment, the weight of the second mass member 24 is greater than the weight of the first mass member 21 to ensure that the rotating member 10 is not easily affected by the rotational motion of the wheel hub body 50 during the driving of the vehicle 300, thus ensuring that the rotating member 10 is in a vibration-absorbing posture. Furthermore, the main body 13 includes a first main body 131 and a second main body 132. The extension directions of both the first main body 131 and the second main body 132 are parallel to the second direction X. One end of the first main body 131 is connected to the second main body 132, and the other end of the first main body 131 is connected to the first region 11. The end of the second main body 132 away from the first main body 131 is connected to the second region 12. The connection between the first main body 131 and the second main body 132 is connected to the bearing member 40, so that the first main body 131 and the second main body 132 form a lever structure with the bearing member 40 as the fulcrum. Based on the weight of the first mass member 21 and the second mass member 24, by adjusting the extension length of the first main body 131 and the second main body 132, it is further ensured that the rotating member 10 can maintain its posture under the action of the first mass member 21 and the second mass member 24.

[0057] Furthermore, the second mass member 24 has a larger mass, resulting in a lower vibration frequency of the vibration-absorbing structure formed by the second mass member 24 and the second elastic member 25, to match the low-frequency vibration of the suspension system. The first mass member 21 has a smaller mass, resulting in a higher vibration frequency of the vibration-absorbing structure formed by the first mass member 21 and the first elastic member 22, to match the high-frequency vibration of the tire acoustic cavity.

[0058] Furthermore, based on the formula for the natural frequency of the vibrating structure:

[0059]

[0060] In the formula, m is the weight of the mass block, and k is the stiffness of the vibrating structure. It can be seen that the natural frequency of the vibrating structure depends on the weight of the mass block and the stiffness of the vibrating structure. In this embodiment, the stiffness of the vibrating structure composed of the first mass member 21 and the first elastic member 22 depends on the thickness and length of the first elastic member 22, and the stiffness of the vibrating structure composed of the second mass member 24 and the second elastic member 25 depends on the thickness and length of the second elastic member 25. Therefore, when the frequency of the first vibration-absorbing vibration needs to be the same as the frequency of the first natural vibration, the mass of the first mass member 21, and the thickness and length of the first elastic member 22, etc., need to be set according to the value of the frequency of the first natural vibration. When the frequency of the second vibration-absorbing vibration needs to be the same as the frequency of the second natural vibration, the mass of the second mass member 24, and the thickness and length of the second elastic member 25, etc., need to be set according to the value of the frequency of the second natural vibration.

[0061] In other embodiments, the number of vibration-absorbing components 20 may be two or more, with each vibration-absorbing component 20 spaced apart around the axis of the bearing component 40. The placement direction of the first elastic element 22 and the second elastic element 25 of any vibration-absorbing component 20 depends on the vibration direction of the inherent vibration of the corresponding vehicle 300.

[0062] In addition, other vibration-absorbing components 20 besides the aforementioned vibration-absorbing components 20 corresponding to the inherent vibration of the suspension and the inherent vibration of the tire acoustic cavity may only be provided with the first elastic element 22 and the first energy conversion element 23 without the need for the second elastic element 25 and the second energy conversion element 26. The second mass element 24 is only provided to balance the gravity of the first mass element 21 and maintain the balance of the rotating element 10.

[0063] It is understood that the number of vibration-absorbing components 20, the specific structure of each vibration-absorbing component 20, and the posture relative to the hub body 50 in this application can be adaptively selected according to actual design requirements, and no specific restrictions are imposed in this application.

[0064] like Figure 3 and Figure 4 As shown, this embodiment also provides a wheel hub 200, including a wheel hub body 50 and the aforementioned vibration energy recovery device 100, wherein the rotating component 10 of the vibration energy recovery device 100 is rotatably connected to the wheel hub body 50.

[0065] In this embodiment, the wheel hub 200 also includes a car logo 60. Along the third direction Y, the car logo 60 is connected to the side of the rotating member 10 away from the wheel hub body 50. This not only allows the car logo 60 to not rotate with the rotation of the wheel hub body 50, but also enables the floating design of the car logo 60, improving the aesthetics of the wheel hub 200.

[0066] It is understood that in other embodiments, the logo 60 is rotatably connected to the bearing 40, so that the logo 60 can rotate relative to the bearing 40, so that the logo 60 will not rotate with the wheel hub body 50 when the wheel hub body 50 rotates. This way of installing the logo 60 can avoid the logo 60 being connected to the rotating part 10 and affecting the balance of the rotating part 10.

[0067] like Figure 5 As shown, and see also Figure 3 This embodiment also provides a vehicle 300, including a body 70 and the aforementioned wheel hubs 200, the wheel hubs 200 being rotatably connected to the body 70. The number of wheel hubs 200 is set to four. Vibration energy recovery devices 100 can be installed on the wheel body 50 of all four wheel hubs 200, or vibration energy recovery devices 100 can be installed on the wheel body 50 of some of the four wheel hubs 200. The specific number of vibration energy recovery devices 100 and the wheel body 50 on which they are installed can be selected according to actual design requirements.

[0068] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A vibration energy recovery device, applied to the wheel hub of a vehicle; characterized in that, The vibration energy recovery device includes: A rotating component is configured to be rotatably connected to the hub body of the hub; At least one vibration-absorbing component, the vibration-absorbing component including a first elastic element, a first mass element, and a first energy conversion element, one end of the first elastic element being connected to the rotating element, the first mass element being connected to the other end of the first elastic element away from the rotating element, so that the first elastic element can vibrate, the first energy conversion element being disposed on the first elastic element, and the first energy conversion element being configured to convert the mechanical energy generated by the vibration of the first elastic element into electrical energy. An energy recovery component is electrically coupled to the first elastic element and the first energy conversion element, and the energy recovery component is configured to absorb the electrical energy converted by the first energy conversion element.

2. The vibration energy recovery device as described in claim 1, characterized in that, The first mass member is configured to allow the first elastic member to vibrate along a first direction to form a first vibration-absorbing vibration, the vehicle having a first natural vibration along the first direction, the frequency of the first vibration-absorbing vibration being the same as the frequency of the first natural vibration.

3. The vibration energy recovery device as described in claim 2, characterized in that, The vibration-absorbing assembly further includes a second mass member connected to the rotating member. The second mass member is configured to maintain the rotating member in a vibration-absorbing posture. When the rotating member is in a vibration-absorbing posture, the first elastic member can vibrate along the first direction.

4. The vibration energy recovery device as described in claim 3, characterized in that, The vibration absorption assembly further includes a second elastic element and a second energy conversion element. One end of the second elastic element is connected to the end of the rotating element away from the first elastic element, and the second mass element is connected to the other end of the second elastic element away from the rotating element. The second energy conversion element is disposed on the second elastic element and is configured to convert the mechanical energy generated by the vibration of the second elastic element into electrical energy.

5. The vibration energy recovery device as described in claim 4, characterized in that, When the rotating component is in the vibration-absorbing posture, the second elastic component can vibrate along the first direction.

6. The vibration energy recovery device as described in claim 5, characterized in that, When the second elastic element vibrates along the first direction, the second elastic element forms a second vibration-absorbing vibration, and the vehicle has a second natural vibration along the first direction, the frequency of the second vibration-absorbing vibration being the same as the frequency of the second natural vibration.

7. The vibration energy recovery device as described in claim 4, characterized in that, The energy recovery component is electrically coupled to the second elastic element and the second energy conversion element, and the energy recovery component is configured to absorb the electrical energy converted by the second energy conversion element.

8. The vibration energy recovery device as described in claim 1, characterized in that, The rotation axis of the rotating component is aligned with the rotation axis of the hub body.

9. A wheel hub, characterized in that, It includes a hub body and a vibration energy recovery device as described in any one of claims 1 to 8, wherein the rotating component of the vibration energy recovery device is rotatably connected to the hub body.

10. A vehicle, characterized in that, It includes a body and a wheel hub as described in claim 9, the wheel hub being rotatably connected to the body.

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