Energy recovery device and vehicle

Abstract

The utility model provides an energy recovery device and a vehicle. The energy recovery device comprises a brake disc, a transmission disc and a recovery disc, the axes of the brake disc, the transmission disc and the recovery disc are located on the same straight line, and the brake disc, the transmission disc and the recovery disc can rotate relatively independently. The brake disc is provided with first magnetic parts which are arranged in a circumferential array, the transmission disc is provided with magnetic conductive parts which are arranged in a circumferential array, and the recovery disc is provided with second magnetic parts which are arranged in a circumferential array; wherein the number of the first magnetic parts is n times that of the second magnetic parts, and n is a natural number larger than 1. Through the arrangement of the transmission disc and the recovery disc, in the rotation process of the brake disc, the recovery disc can rotate along with the brake disc by n times of rotation of the brake disc, so that energy recovery is achieved, waste of energy resources is reduced, meanwhile, resistance needed by braking can be provided in the vehicle braking process, and the auxiliary braking effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle braking, in particular to an energy recovery device and a vehicle. Background Art

[0002] The vehicle braking system includes a brake pedal, brake fluid, a drive cylinder, a brake, a booster, etc., wherein the brake includes a brake disc, a brake drum, a brake piston, a brake lining, etc., which is used to contact the wheel and prevent the wheel from rotating through friction to achieve braking. However, the energy loss generated during the vehicle braking process in the prior art is relatively large, which will cause a serious waste of energy resources. Utility Model Content

[0003] In view of this, the utility model aims to provide an energy recovery device and a vehicle to solve the problem of serious energy resource waste during vehicle braking in the prior art.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] The utility model provides an energy recovery device, which comprises: a brake disc, a transmission disc and a recovery disc;

[0006] The transmission disc is arranged between the brake disc and the recovery disc, the axes of the brake disc, the transmission disc and the recovery disc are located on the same straight line, and the brake disc, the transmission disc and the recovery disc can rotate relatively independently;

[0007] The brake disc is provided with first magnetic members arranged in a circumferential array, the transmission disc is provided with magnetic conductive members arranged in a circumferential array, and the recovery disc is provided with second magnetic members arranged in a circumferential array;

[0008] The number of the first magnetic components is n times the number of the second magnetic components, wherein n is a natural number greater than 1.

[0009] Furthermore, along a side of the brake disc close to the transmission disc, the magnetic poles of two adjacent first magnetic members in the circumferential direction of the brake disc are opposite.

[0010] Furthermore, along a side of the recovery disk close to the transmission disk, the magnetic poles of two adjacent second magnetic members in the circumferential direction of the recovery disk are opposite.

[0011] Further, the device includes a connecting shaft;

[0012] The transmission disc and the recovery disc are both sleeved on the connecting shaft, and the transmission disc and / or the recovery disc can rotate relative to the connecting shaft.

[0013] Further, the device also includes a first bearing and a second bearing;

[0014] The transmission plate is sleeved on the connecting shaft via the first bearing, and the recovery plate is sleeved on the connecting shaft via the second bearing.

[0015] Furthermore, along the axial direction of the connecting shaft, first axial pins are provided on both sides of the transmission disk; and / or, along the axial direction of the connecting shaft, second axial pins are provided on both sides of the recovery disk.

[0016] Furthermore, the recovery disk is a gear, and the second magnetic members are arranged in a circular array on the wheel disk of the gear.

[0017] Furthermore, the wheel disc of the gear is provided with mounting grooves arranged in a circular array, and a second magnetic member is installed in each of the mounting grooves.

[0018] Furthermore, the first magnetic component and the second magnetic component are both cylindrical structures, and the diameter of the first magnetic component is smaller than the diameter of the second magnetic component.

[0019] The utility model also provides a vehicle, comprising a vehicle body, wheels and the energy recovery device described in any one of the above items;

[0020] The brake disc is fixedly connected to the wheel, and the transmission disc and the recovery disc are both installed on the vehicle body.

[0021] Compared with the prior art, the vehicle described in the utility model has the following advantages:

[0022] The utility model provides a transmission disk and a recovery disk, and during the rotation of the brake disk, the recovery disk can rotate with it at n times the rotation of the brake disk, thereby realizing energy recovery and reducing the waste of energy resources. At the same time, since the wheel rotation drives the brake disk to rotate synchronously, the device of the utility model embodiment can also provide the resistance required for braking during the vehicle braking process, playing the role of auxiliary braking.

[0023] The advantages of the vehicle and the above-mentioned energy recovery device over the prior art are the same and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0025] Figure 1 A schematic diagram of an energy recovery device according to an embodiment of the present utility model;

[0026] Figure 2 It is a left side view of the energy recovery device according to an embodiment of the utility model;

[0027] Figure 3 It is a right side view of the energy recovery device described in an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1-brake disc, 10-first magnetic part, 11-driving shaft, 12-third shaft pin, 2-transmission disc, 20-magnetic conductive part, 3-recovery disc, 30-second magnetic part, 4-connecting shaft, 5-first bearing, 6-second bearing. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. The described embodiments are part of the embodiments of the present invention, not all of them. 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.

[0031] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] It should be understood that the reference to "one embodiment" throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the utility model. Therefore, the "in one embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0034] Reference Figures 1 to 3The utility model provides an energy recovery device comprising: a brake disc 1, a transmission disc 2 and a recovery disc 3; the transmission disc 2 is arranged between the brake disc 1 and the recovery disc 3, the axes of the brake disc 1, the transmission disc 2 and the recovery disc 3 are located on the same straight line, and the brake disc 1, the transmission disc 2 and the recovery disc 3 can rotate relatively independently; the brake disc 1 is provided with first magnetic parts 10 arranged in a circular array, the transmission disc 2 is provided with magnetic conductive parts 20 arranged in a circular array, and the recovery disc 3 is provided with second magnetic parts 30 arranged in a circular array; wherein the number of the first magnetic parts 10 is n times the number of the second magnetic parts 30, wherein n is a natural number greater than 1.

[0035] Specifically, if Figure 1 As shown, the energy recovery device includes a brake disc 1, a transmission disc 2 and a recovery disc 3. The brake disc 1 belongs to the braking system of the vehicle, is arranged at the wheel of the vehicle, and is connected to the drive shaft 11 that drives the wheel to rotate. The brake disc 1 rotates with the wheel during rotation. After receiving the vehicle braking signal, the brake friction pad and the brake disc 1 produce friction, so that the rotation speed of the brake disc 1 gradually decreases. The brake disc 1 continuously rubs against the wheel, and finally drives the wheel to stop rotating to achieve the braking of the vehicle. The transmission disc 2 is arranged between the brake disc 1 and the recovery disc 3. The axes of the brake disc 1, the transmission disc 2 and the recovery disc 3 are located on the same straight line, and the brake disc 1, the transmission disc 2 and the recovery disc 3 can rotate relatively independently. The brake disc 1, the transmission disc 2 and the recovery disc 3 can all be made of hard plastic discs to avoid affecting the magnetic transmission, and at the same time help to reduce the overall weight of the device and achieve a lightweight design of the device. The brake disc 1 is provided with first magnetic members 10 arranged in a circumferential array, the transmission disc 2 is provided with magnetic members 20 arranged in a circumferential array, and the recovery disc 3 is provided with second magnetic members 30 arranged in a circumferential array. The first magnetic members 10 and the second magnetic members 30 can be permanent magnets, such as aluminum nickel cobalt, permanent ferrite, samarium cobalt, neodymium iron boron, etc., which can generate a magnetic field. The magnetic member 20 will be magnetized under the magnetic field of the first magnetic member 10 and the second magnetic member 30, and it can be selected from magnets, silicon steel sheets, etc. The number of the first magnetic members 10 is n times the number of the second magnetic members 30, and n is a natural number greater than 1. For example, if the second magnetic members 30 are 2, n is 2, the first magnetic members 10 can be 4, n is 3, and the first magnetic members 10 can be 6; if the second magnetic members 30 are 3, n is 2, the first magnetic members 10 can be 6, and n is 3, the first magnetic members 10 can be 9. The embodiment of the utility model does not limit the specific number of the first magnetic member 10 and the second magnetic member 30. At the same time, the number of the magnetic conductive members 20 can also be set according to actual needs. In the embodiment of the utility model, the number of the magnetic conductive members 20 is less than the number of the first magnetic members 10, and more than the number of the second magnetic members 30.

[0036] Furthermore, along the side of the brake disc 1 close to the transmission disc 2, the magnetic poles of the two adjacent first magnetic members 10 in the circumferential direction of the brake disc 1 are opposite, and along the side of the recovery disc 3 close to the transmission disc 2, the magnetic poles of the two adjacent second magnetic members 30 in the circumferential direction of the recovery disc 3 are opposite, that is, the magnetic poles of the first magnetic member 10 and the second magnetic member 30 close to the transmission disc 2 are alternately distributed in the N pole and the S pole. Figure 2 and Figure 3As shown, in this structure, taking a first magnetic member 10a in the brake disc 1 as an example, the magnetic pole of the first magnetic member 10a close to the transmission disc 2 is the N pole, and the magnetic member 20 is induced as the S pole on the side close to the brake disc 1 under the magnetic field of the first magnetic member 10a, so that the magnetic pole of the magnetic member 20 away from the brake disc 1 is induced as the N pole. Since the number of the first magnetic members 10 on the brake disc 1 is different from the number of the second magnetic members 30 on the recovery disc 3, the magnetic member 20 and the second magnetic member 30b closest to the recovery disc 3 are not on the same axis. If the second magnetic member 30b closest to the magnetic member 20 in the recovery disc 3 is the N pole at this time, the second magnetic member 30b will repel the magnetic member 20 and drive the recovery disc 3 to rotate in a clockwise or counterclockwise direction. If the second magnetic member 30b closest to the magnetic member 20 in the recovery disc 3 is the S pole at this time, the second magnetic member 30 will attract the magnetic member 20 and drive the recovery disc 3 to rotate in the direction opposite to the above direction. Similarly, taking the first magnetic member 10c adjacent to the first magnetic member 10a in the brake disc 1 as an example, since the magnetic poles of the first magnetic member 10 on the side close to the transmission disc 2 are staggered, the magnetic poles of the first magnetic member 10c on the side close to the transmission disc 2 are S poles, and the magnetic member 20 is induced as N poles on the side close to the brake disc 1 under the magnetic field of the first magnetic member 10c, so that the magnetic poles of the magnetic member 20 away from the brake disc 1 are induced as S poles. If the second magnetic member 30d closest to the magnetic member 20 in the recovery disc 3 is an S pole at this time, the second magnetic member 30d will repel the magnetic member 20 and drive the recovery disc 3 to continue to rotate in a clockwise or counterclockwise direction. If the second magnetic member 30d closest to the magnetic member 20 in the recovery disc 3 is an N pole at this time, the second magnetic member 30 will attract the magnetic member 20 and drive the recovery disc 3 to rotate in the direction opposite to the aforementioned direction. By analogy, since the magnetic conductive parts 20 on the transmission disc 2 are evenly distributed, the magnetic poles induced by them are also evenly distributed with N poles and S poles. On the other side, according to the magnetic pole distribution law generated by the magnetic conductive parts 20 on the transmission disc 2 being induced by the first magnetic part 10 on the brake disc 1, since the magnetic flux lines of the first magnetic part 10 and the second magnetic part 30 are distributed in multiples, the number of rotations of the recovery disc 3 is inversely proportional to the first magnetic part 10 and the second magnetic part 30, that is, when the brake disc 1 rotates one circle, the recovery disc 3 rotates n circles, and when the brake disc 1 rotates 2 circles, the recovery disc 3 rotates 2n circles. It should be noted that during the rotation of the brake disc 1 and the recovery disc 3, the transmission disc 2 will not rotate, and the transmission disc 2 only plays the role of magnetic induction and transmitting magnetic force.

[0037] In the embodiment of the utility model, the side of the recovery disk 3 away from the transmission disk 2 can be connected to the output shaft, and the kinetic energy accumulated in the rotation process of the recovery disk 3 is output. In some embodiments, the recovery disk 3 can be connected to the generator through the output shaft, and the mechanical energy of the recovery disk 3 is converted into electrical energy through the generator, which is used to power the electrical components of the vehicle. In other embodiments, the recovery disk 3 can be connected to the pump through the output shaft, and the driving pump pumps coolant for the cooling pipeline of the vehicle. Of course, the recovery disk 3 can also be connected to other driving components through the output shaft, and the specific type of the utility model embodiment is not limited. Thus, the utility model embodiment is provided with the transmission disk 2 and the recovery disk 3, and during the rotation of the brake disk 1, the recovery disk 3 can rotate with n times the rotation of the brake disk 1, thereby realizing energy recovery and reducing the waste of energy resources. At the same time, since the wheel rotation drives the brake disk 1 to rotate synchronously, the device of the utility model embodiment can also provide the resistance required for braking during the vehicle braking process, and play a role in auxiliary braking.

[0038] Further, see Figure 1 The device includes a connecting shaft 4; the transmission disc 2 and the recovery disc 3 are both sleeved on the connecting shaft 4, and the transmission disc 2 and / or the recovery disc 3 can rotate relative to the connecting shaft 4.

[0039] Specifically, if Figure 1 As shown, the energy recovery device also includes a connecting shaft 4, and the transmission disc 2 and the recovery disc 3 are both sleeved on the connecting shaft 4. The setting of the connecting shaft 4 can ensure that the axis of the transmission disc 2 and the recovery disc 3 is located on the same straight line, and there will be no radial position deviation between the transmission disc 2 and the recovery disc 3 during the rotation of the recovery disc 3, thereby improving the reliability of the device. It should be noted that, since the transmission disc 2 does not rotate and the recovery disc 3 rotates during the operation of the device, when the transmission disc 2 and the recovery disc 3 are sleeved on the connecting shaft 4, it is necessary to ensure that at least one of the transmission disc 2 and the recovery disc 3 can rotate relative to the connecting shaft 4. Exemplarily, in the first embodiment, the transmission disc 2 is rotatably sleeved on the connecting shaft 4, and the recovery disc 3 is non-rotatably sleeved on the connecting shaft 4. In this structure, the transmission disc 2 does not rotate during the operation of the device, and the connecting shaft 4 rotates synchronously with the recovery disc 3. In the second embodiment, the transmission disc 2 is non-rotatably sleeved on the connecting shaft 4, and the recovery disc 3 is rotatably sleeved on the connecting shaft 4. In this structure, the connecting shaft 4 and the transmission disc 2 do not rotate during the operation of the device, and the recovery disc 3 rotates relative to the connecting shaft 4. In the third embodiment, both the transmission disc 2 and the recovery disc 3 are rotatably sleeved on the connecting shaft 4. In this structure, during the operation of the device, the connecting shaft 4 and the transmission disc 2 do not rotate, and the recovery disc 3 rotates relative to the connecting shaft 4. In the above embodiments, the transmission disc 2 or the recovery disc 3 can be connected to the connecting shaft 4 in the form of a flat key, a spline, etc., so that it is sleeved on the connecting shaft 4 in a non-rotatable manner.

[0040] Further, see Figure 1 and Figure 3 The device also includes a first bearing 5 and a second bearing 6; the transmission plate 2 is sleeved on the connecting shaft 4 through the first bearing 5, and the recovery plate 3 is sleeved on the connecting shaft 4 through the second bearing 6.

[0041] Specifically, the first bearing 5 and the second bearing 6 are both sleeved on the connecting shaft 4. Figure 1 As shown, the inner ring of the first bearing 5 is connected to the connecting shaft 4, and the outer ring of the first bearing 5 is connected to the transmission plate 2. Figure 3 As shown, the inner ring of the second bearing 6 is connected to the connecting shaft 4, and the outer ring of the second bearing 6 is connected to the recovery disk 3. A rolling structure such as a ball is provided between the inner ring and the outer ring of the first bearing 5 and between the inner ring and the outer ring of the second bearing 6, so that the inner ring and the outer ring of the first bearing 5 can rotate relative to each other, and the inner ring and the outer ring of the second bearing 6 can rotate relative to each other, so that the transmission disk 2 and the recovery disk 3 can rotate relative to the connecting shaft 4 through the first bearing 5 and the second bearing 6. The setting of the first bearing 5 and the second bearing 6 can not only support the transmission disk 2 and the recovery disk 3, but also enable the transmission disk 2 and the recovery disk 3 to rotate relative to the connecting shaft 4. The stability of the magnetic force transmission process is effectively improved, and the loss caused by deviation during the magnetic force transmission process is reduced to a minimum.

[0042] Furthermore, along the axial direction of the connecting shaft 4 , first axial pins are provided on both sides of the transmission disk 2 ; and / or, along the axial direction of the connecting shaft 4 , second axial pins are provided on both sides of the recovery disk 3 .

[0043] Specifically, in some embodiments, along the axial direction of the connecting shaft 4, a first shaft pin is provided on both sides of the transmission disk 2, and a pin hole for clamping the first shaft pin can be provided on the connecting shaft 4, the first shaft pin is clamped in the pin hole of the connecting shaft 4, and extends out of the outer peripheral surface of the connecting shaft 4, and the first shaft pin can play an axial limiting role on the transmission disk 2 to prevent the transmission disk 2 from shaking during the operation of the device. In other embodiments, along the axial direction of the connecting shaft 4, a second shaft pin is provided on both sides of the recovery disk 3, and a pin hole for clamping the second shaft pin can be provided on the connecting shaft 4, the second shaft pin is clamped in the pin hole of the connecting shaft 4, and extends out of the outer peripheral surface of the connecting shaft 4, and the second shaft pin can play an axial limiting role on the recovery disk 3 to prevent the recovery disk 3 from slipping out of the connecting shaft 4 during rotation. Of course, in some embodiments, the first shaft pin and the second shaft pin can also be provided on the connecting shaft 4 at the same time, respectively playing an axial limiting role on the transmission disk 2 and the recovery disk 3. In addition, the brake disc 1 is connected to the driving shaft 11 of the wheel. Along the axial direction of the connecting shaft 4, third axle pins 12 may also be provided on both sides of the brake disc 1 to limit the brake disc 1 axially.

[0044] Furthermore, the recovery disk 3 is a gear, and the second magnetic members 30 are arranged in a circular array on the wheel disk of the gear.

[0045] Specifically, the recovery disk 3 can be a gear, and the second magnetic member 30 is arranged in a circumferential array on the wheel disc of the gear. In a preferred embodiment, the wheel disc of the gear is provided with mounting grooves arranged in a circumferential array, and a second magnetic member 30 is installed in each mounting groove, so that the second magnetic member 30 is limited by the mounting groove, thereby improving the installation stability of the second magnetic member 30.

[0046] Furthermore, the first magnetic component 10 and the second magnetic component 30 are both cylindrical structures, and the diameter of the first magnetic component 10 is smaller than the diameter of the second magnetic component 30 .

[0047] Specifically, the first magnetic component 10 and the second magnetic component 30 are both cylindrical structures. Since the number of the first magnetic components 10 is greater than the number of the second magnetic components 30, the diameter of the first magnetic component 10 can be set smaller than the diameter of the second magnetic component 30 to facilitate the arrangement of the first magnetic component 10 on the brake disc 1 and the arrangement of the second magnetic component 30 on the recovery disc 3.

[0048] An embodiment of the utility model further provides a vehicle, comprising a vehicle body, wheels and an energy recovery device as described in any one of the above items; the brake disc is fixedly connected to the wheel, and the transmission disc and the recovery disc are both mounted on the vehicle body.

[0049] Specifically, the vehicle includes a body, wheels and an energy recovery device. The wheels are connected to the half-axles of the vehicle, and the brake discs are fixedly connected to the wheels. They can rotate synchronously with the wheels during the rotation of the wheels. When the vehicle braking signal is received, the brake friction pads and the brake discs produce friction, which gradually reduces the rotation speed of the brake discs. The brake discs continue to rub against the wheels, and finally drive the wheels to stop rotating to achieve vehicle braking. The transmission disc and the recovery disc are both installed on the suspension of the vehicle body close to the wheels, and the axes of the brake disc, the transmission disc and the recovery disc are located on the same straight line. Through the setting of the energy recovery device, energy can be recovered during the driving process of the vehicle to avoid the waste of energy resources. At the same time, it can also provide the resistance required for braking during the braking process of the vehicle, thereby improving the braking effect of the vehicle.

[0050] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy recovery device, characterized in that: The device comprises: a brake disc (1), a transmission disc (2) and a recovery disc (3); The transmission disc (2) is arranged between the brake disc (1) and the recovery disc (3); the axes of the brake disc (1), the transmission disc (2) and the recovery disc (3) are located on the same straight line, and the brake disc (1), the transmission disc (2) and the recovery disc (3) can rotate relatively independently; The brake disc (1) is provided with first magnetic members (10) arranged in a circumferential array, the transmission disc (2) is provided with magnetic conductive members (20) arranged in a circumferential array, and the recovery disc (3) is provided with second magnetic members (30) arranged in a circumferential array; Wherein, the number of the first magnetic components (10) is n times the number of the second magnetic components (30), where n is a natural number greater than 1.

2. The energy recovery device according to claim 1, characterized in that: Along a side of the brake disc (1) close to the transmission disc (2), the magnetic poles of two adjacent first magnetic members (10) in the circumferential direction of the brake disc (1) are opposite.

3. The energy recovery device according to claim 1, characterized in that: Along a side of the recovery disk (3) close to the transmission disk (2), the magnetic poles of two adjacent second magnetic members (30) in the circumferential direction of the recovery disk (3) are opposite.

4. The energy recovery device according to claim 1, characterized in that: The device comprises a connecting shaft (4); The transmission disc (2) and the recovery disc (3) are both sleeved on the connecting shaft (4), and the transmission disc (2) and / or the recovery disc (3) can rotate relative to the connecting shaft (4).

5. The energy recovery device according to claim 4, characterized in that: The device also includes a first bearing (5) and a second bearing (6); The transmission disc (2) is sleeved on the connecting shaft (4) via the first bearing (5), and the recovery disc (3) is sleeved on the connecting shaft (4) via the second bearing (6).

6. The energy recovery device according to claim 4, characterized in that: Along the axial direction of the connecting shaft (4), first axial pins are provided on both sides of the transmission disk (2); and / or, along the axial direction of the connecting shaft (4), second axial pins are provided on both sides of the recovery disk (3).

7. The energy recovery device according to claim 1, characterized in that: The recovery disk (3) is a gear, and the second magnetic members (30) are arranged in a circular array on the wheel disk of the gear.

8. The energy recovery device according to claim 7, characterized in that: The wheel disc of the gear is provided with mounting grooves arranged in a circumferential array, and a second magnetic member (30) is installed in each mounting groove.

9. The energy recovery device according to claim 1, characterized in that: The first magnetic component (10) and the second magnetic component (30) are both cylindrical structures, and the diameter of the first magnetic component (10) is smaller than the diameter of the second magnetic component (30).

10. A vehicle, characterized in that: A vehicle body, a wheel and an energy recovery device as claimed in any one of claims 1 to 9; The brake disc (1) is fixedly connected to the wheel, and the transmission disc (2) and the recovery disc (3) are both mounted on the vehicle body.

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