Suspension energy recovery device and vehicle with same

Abstract

The invention discloses a suspension energy recovery device and a vehicle with the suspension energy recovery device, and the suspension energy recovery device comprises a connecting rod, an energy recovery device and an energy recovery device, and one end of the connecting rod is suitable for being connected with a suspension; the conversion mechanism comprises an input shaft and an output shaft, the input shaft is connected with the other end of the connecting rod, a first one-way bearing and a second one-way bearing which are arranged at intervals are arranged on the input shaft, and the first one-way bearing and the second one-way bearing are reversely installed on the input shaft; the output shaft is sleeved with a first output gear and a second output gear which are arranged at an interval, the first output gear is in transmission connection with an outer ring of the first one-way bearing, the second output gear is in transmission connection with an outer ring of the second one-way bearing, and the output shaft always rotates in one direction; and the output shaft is in transmission connection with a motor shaft of the generator. According to the suspension energy recovery device, energy conversion can be effectively achieved, the endurance mileage is increased, and the production cost can be reduced. Meanwhile, the shock absorber can be effectively protected, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a suspension energy recovery device and a vehicle having the same. Background Art

[0002] With the increasing global environmental awareness and the increasing attention to energy consumption, all walks of life are actively seeking a more environmentally friendly and energy-saving development model. Against this background, vehicle suspension energy recovery technology came into being and gradually became one of the means to reduce vehicle energy consumption and improve vehicle endurance. The current vehicle suspension energy recovery technology mainly uses the active stabilizer bar motor of the active suspension to convert the energy of the vehicle suspension swinging up and down into electrical energy.

[0003] Among the existing vehicle suspension energy recovery technologies, the active stabilizer bar of the vehicle active suspension has a complex structure and high manufacturing and maintenance costs. It is mostly used in luxury models, but it is difficult to balance the cost difference when used in ordinary models. Therefore, the active stabilizer bar of the vehicle active suspension is difficult to apply and promote in ordinary models. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a suspension energy recovery device, which can not only effectively realize energy conversion and improve the driving range, but also reduce production costs. At the same time, it can effectively protect the shock absorber and reduce maintenance costs.

[0005] The present invention also provides a vehicle having the above suspension energy recovery device.

[0006] According to the first aspect of the present invention, the suspension energy recovery device comprises: a connecting rod, one end of which is suitable for being connected to the suspension; a conversion mechanism, which comprises: an input shaft, which is connected to the other end of the connecting rod, and is provided with a first one-way bearing and a second one-way bearing arranged at intervals, and the relative rotation direction of the outer ring and the inner ring of the first one-way bearing is opposite to the relative rotation direction of the outer ring and the inner ring of the second one-way bearing; an output shaft, on which are sleeved a first output gear and a second output gear arranged at intervals, wherein the first output gear is transmission-connected to the outer ring of the first one-way bearing, the second output gear is transmission-connected to the outer ring of the second one-way bearing, and the rotation direction of the first one-way bearing when driving the output shaft to rotate through the first output gear is the same as the rotation direction of the second one-way bearing when driving the output shaft to rotate through the second output gear; a generator, and the output shaft is transmission-connected to the motor shaft of the generator.

[0007] According to the suspension energy recovery device of the present invention, by arranging a connecting rod, a conversion mechanism and a generator in the suspension energy recovery device, the mechanical energy generated by the up and down vibration of the vehicle suspension can be converted into unidirectional stable rotational kinetic energy for power generation, thereby effectively realizing energy conversion, improving the driving range and reducing production costs. At the same time, the suspension energy recovery device can share part of the load borne by the vehicle shock absorber, thereby effectively protecting the shock absorber, improving the service life of the shock absorber and reducing maintenance costs.

[0008] In some embodiments, the suspension energy recovery device further includes: an energy storage device, which is connected to the generator and is used to store the electrical energy generated by the generator; and a rectifier, which is connected between the generator and the energy storage device.

[0009] In some embodiments, the conversion mechanism further includes: a shell having a mounting cavity, and the input shaft and the output shaft are both disposed in the mounting cavity.

[0010] In some embodiments, the shell is respectively formed with a first through hole and a second through hole on two opposite side walls in the axial direction of the input shaft, the input end of the input shaft extends to the outside of the shell through the first through hole to connect to the connecting rod, the generator is arranged on the outside of the shell, and the motor shaft of the generator extends into the mounting cavity through the second through hole to be connected to the output end of the output shaft.

[0011] In some embodiments, the conversion mechanism further includes: a swing arm, which extends radially along the input shaft and has a first end and a second end, the first end is hinged to the other end of the connecting rod, and the second end is fixedly connected to the input shaft.

[0012] In some embodiments, one end of the connecting rod is provided with a first ball joint, and the connecting rod is suitable for being connected to the suspension through the first ball joint, and the other end of the connecting rod is provided with a second ball joint and is connected to the first end through the second ball joint.

[0013] In some embodiments, a first gear is provided on the outer ring of the first one-way bearing, and the first gear is connected to the first output gear through a first transmission member; a second gear is provided on the outer ring of the second one-way bearing, wherein the second gear is connected to the second output gear through a second transmission member, or the second gear is directly meshed with the second output gear.

[0014] In some embodiments, the first transmission member includes: an intermediate shaft, a first intermediate gear and a second intermediate gear, the intermediate shaft is parallel to the input shaft and the output shaft and arranged at intervals, the first intermediate gear and the second intermediate gear are coaxially fixed on the intermediate shaft, the first intermediate gear is meshed with the first gear, and the second intermediate gear is meshed with the first output gear.

[0015] In some embodiments, the conversion mechanism further includes: a speed increaser, one end of which is connected to the output shaft, and the other end of which is connected to the generator.

[0016] The vehicle according to the second aspect of the present invention comprises a suspension and the suspension energy recovery device according to the first aspect of the present invention, and one end of the connecting rod is connected to the suspension.

[0017] According to the vehicle of the second aspect of the present invention, by providing the suspension energy recovery device of the first aspect, the mechanical energy generated by the up and down vibration of the vehicle suspension can be converted into unidirectional stable rotational kinetic energy for power generation, thereby effectively realizing energy conversion, improving the driving range and reducing production costs. At the same time, the suspension energy recovery device can share part of the load borne by the vehicle shock absorber, thereby effectively protecting the shock absorber, improving the service life of the shock absorber and reducing maintenance costs.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a conversion mechanism and a generator according to an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of a suspension energy recovery device according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] 100. Suspension energy recovery device;

[0023] 1. Connecting rod; 11. First ball joint; 12. Second ball joint;

[0024] 2. Input shaft; 21. First one-way bearing; 211. First gear; 22. Second one-way bearing; 221. Second gear;

[0025] 3. Output shaft; 31. First output gear; 32. Second output gear;

[0026] 4. Shell;

[0027] 5. swing arm; 51. first end; 52. second end;

[0028] 6. first transmission member; 61. intermediate shaft; 62. first intermediate gear; 63. second intermediate gear;

[0029] 7. Speed ​​increaser; 71. First speed increase gear; 72. Second speed increase gear;

[0030] 8. Generator. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] Reference below Figure 1 and Figure 2 A suspension energy recovery device 100 according to an embodiment of a first aspect of the present invention is described.

[0033] like Figure 1 and Figure 2 As shown, the suspension energy recovery device 100 according to the first embodiment of the present invention includes: a connecting rod 1, a conversion mechanism and a generator 8.

[0034] One end of the connecting rod 1 is suitable for being connected to the suspension. The conversion mechanism comprises: an input shaft 2, an output shaft 3, a first one-way bearing 21, a second one-way bearing 22, a first output gear 31 and a second output gear 32. Specifically, the input shaft 2 is connected to the other end of the connecting rod 1. The input shaft 2 is provided with a first one-way bearing 21 and a second one-way bearing 22 arranged at intervals. Both the first one-way bearing 21 and the second one-way bearing 22 are one-way bearings. One-way bearings are a type of bearing that can rotate freely in one direction and is locked in another direction. The relative rotatable direction of the outer ring and the inner ring of the first one-way bearing 21 is opposite to the relative rotatable direction of the outer ring and the inner ring of the second one-way bearing 22.

[0035] The output shaft 3 is sleeved with a first output gear 31 and a second output gear 32 arranged at intervals, and the output shaft 3 is drivingly connected to the motor shaft of the generator 8. The first output gear 31 is drivingly connected to the outer ring of the first one-way bearing 21, and the second output gear 32 is drivingly connected to the outer ring of the second one-way bearing 22, and the rotation direction of the first one-way bearing 21 when driving the output shaft 3 to rotate through the first output gear 31 is the same as the rotation direction of the second one-way bearing 22 when driving the output shaft 3 to rotate through the second output gear 32.

[0036] It should be noted that transmission connection refers to connecting two or more parts together through a certain assembly method to achieve the transmission of force or power. Transmission connection can effectively transfer force or power from one part to another, so that the entire system can operate normally. The two parts of the transmission connection can be directly or indirectly connected, as long as the force transmission can be achieved.

[0037] For example Figure 1 As shown, the first one-way bearing 21 and the second one-way bearing 22 are arranged on the input shaft 2 at intervals, the first one-way bearing 21 is located on the left, and the second one-way bearing 22 is located on the right, and the first one-way bearing 21 and the second one-way bearing 22 are installed opposite to each other on the input shaft 2. Specifically, the inner ring of the first one-way bearing 21 can rotate counterclockwise relative to the outer ring, but cannot rotate clockwise relative to the outer ring, and the inner ring of the second one-way bearing 22 can rotate clockwise relative to the outer ring, but cannot rotate counterclockwise relative to the outer ring. The first output gear 31 and the second output gear 32 are arranged on the output shaft 3 at intervals, the first output gear 31 is located on the left, and the second output gear 32 is located on the right, and the right end of the output shaft 3 is connected to the generator 8. The first output gear 31 is transmission-connected to the outer ring of the first one-way bearing 21, and the second output gear 32 is transmission-connected to the outer ring of the second one-way bearing 22.

[0038] For example, when the input shaft 2 rotates clockwise under the drive of the connecting rod 1, the input shaft 2 drives the inner ring of the first one-way bearing 21 to rotate clockwise. Since the inner ring of the first one-way bearing 21 is locked in the clockwise direction relative to the outer ring, the outer ring of the first one-way bearing 21 rotates clockwise together with the inner ring. Then, the outer ring of the first one-way bearing 21 can drive the first output gear 31 to rotate clockwise, thereby driving the output shaft 3 to rotate clockwise. At this time, the clockwise rotation of the input shaft 2 drives the inner ring of the second one-way bearing 22 to rotate clockwise relative to the outer ring.

[0039] When the input shaft 2 rotates counterclockwise under the drive of the connecting rod 1, the input shaft 2 drives the inner ring of the second one-way bearing 22 to rotate counterclockwise. Since the inner ring of the second one-way bearing 22 is locked in the counterclockwise direction relative to the outer ring, the outer ring of the second one-way bearing 22 rotates counterclockwise with the inner ring, and then the outer ring of the second one-way bearing 22 drives the second output gear 32 to rotate clockwise, thereby driving the output shaft 3 to rotate clockwise. At this time, the counterclockwise rotation of the input shaft 2 drives the inner ring of the first one-way bearing 21 to rotate counterclockwise relative to the outer ring.

[0040] In this embodiment, when the vehicle suspension vibrates upward and drives the connecting rod 1 to move upward, when the connecting rod 1 drives the input shaft 2 of the conversion mechanism to rotate clockwise, the first one-way bearing 21 and the outer ring of the first one-way bearing 21 rotate clockwise together with the input shaft 2, thereby driving the first output gear 31 of the output shaft 3 to rotate clockwise, and then driving the output shaft 3 to rotate clockwise, and finally realizing energy conversion through the generator 8; when the vehicle suspension vibrates downward and drives the connecting rod 1 to move downward, when the connecting rod 1 drives the input shaft 2 of the conversion mechanism to rotate counterclockwise, the second one-way bearing 22 and the outer ring of the second one-way bearing 22 rotate counterclockwise together with the input shaft 2, thereby driving the second output gear 32 of the output shaft 3 to rotate clockwise, and then driving the output shaft 3 to rotate clockwise, and finally realizing energy conversion through the generator 8.

[0041] Therefore, no matter whether the vehicle suspension drives the input shaft 2 to rotate clockwise or counterclockwise through the connecting rod 1, the mechanical energy generated by the up and down vibration of the vehicle suspension is finally converted into a unidirectional stable rotational kinetic energy and input into the generator 8 for continuous power generation. At the same time, the first one-way bearing 21 and the second one-way bearing 22 have a simple structure, which can effectively reduce the production cost of the suspension energy recovery device 100. In addition, the friction between the gears in the suspension energy recovery device 100 and the rotation resistance of the motor shaft at the input end of the generator 8 can offset part of the load borne by the vehicle shock absorber.

[0042] According to the suspension energy recovery device 100 of the embodiment of the present invention, by providing the connecting rod 1, the conversion mechanism and the generator 8 in the suspension energy recovery device 100, the mechanical energy generated by the up and down vibration of the vehicle suspension can be converted into unidirectional stable rotational kinetic energy for power generation, thereby effectively realizing energy conversion, improving the driving range and reducing the production cost. At the same time, the suspension energy recovery device 100 can share part of the load borne by the vehicle shock absorber, thereby effectively protecting the shock absorber, improving the service life of the shock absorber and reducing the maintenance cost.

[0043] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the suspension energy recovery device 100 further includes: an energy storage device and a rectifier. The energy storage device is connected to the generator 8 and is used to store the electric energy generated by the generator 8; the rectifier is connected between the generator 8 and the energy storage device.

[0044] Specifically, the energy storage device is an energy storage device, which has a charging and discharging function and can be used to store the electric energy generated by the generator 8 and release the stored electric energy when needed. Furthermore, the energy storage device can be a supercapacitor.

[0045] A rectifier is a device that converts the alternating current generated by the generator 8 into direct current. The rectifier converts the alternating current generated by the generator 8 into direct current, supplies the direct current to the load after filtering, or inputs the direct current into the energy storage device to provide a charging voltage for the energy storage device, thus playing the role of a charger.

[0046] For example, the rectifier is connected between the generator 8 and the energy storage device, one end of the rectifier is connected to the output end of the generator 8, and the other end of the rectifier is connected to the input end of the energy storage device. When the generator 8 is working, the alternating current generated by the generator 8 is input into the rectifier, and the rectifier converts the alternating current into stable direct current after processing, and inputs it into the energy storage device for storage of electric energy.

[0047] Therefore, by providing an energy storage device and a rectifier in the suspension energy recovery device 100, the alternating current generated by the generator 8 can be converted into stable direct current, thereby providing a stable charging voltage, and then storing the electric energy for the operation of the electric drive system or other electronic equipment. At the same time, the rectifier can effectively protect the energy storage device, thereby extending the service life of the energy storage device.

[0048] In one embodiment of the present invention, Figure 2 As shown, the conversion mechanism further includes: a housing 4, the housing 4 has a mounting cavity, and the input shaft 2 and the output shaft 3 are both arranged in the mounting cavity.

[0049] For example, the input shaft 2, the first one-way bearing 21, the second one-way bearing 22, the output shaft 3, the first output gear 31, the second output gear 32, the first transmission member 6, the second transmission member and the speed increaser 7 are all arranged in the installation cavity of the shell 4. Furthermore, the shape of the shell 4 can be a rectangular parallelepiped, and the material of the shell 4 can be aluminum alloy.

[0050] By providing a housing 4 in the suspension energy recovery device 100, this embodiment can effectively protect the input shaft 2, the first one-way bearing 21, the second one-way bearing 22, the output shaft 3, the first output gear 31, the second output gear 32, the first transmission member 6, the second transmission member and the speed increaser 7 in the housing 4. At the same time, the provision of the housing 4 can play a role in sealing and dustproofing.

[0051] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the housing 4 is respectively formed with a first through hole and a second through hole on two opposite side walls in the axial direction of the input shaft 2. The input end of the input shaft 2 extends to the outside of the housing 4 through the first through hole to connect to the connecting rod 1. The generator 8 is arranged on the outside of the housing 4. The motor shaft of the generator 8 extends into the installation cavity through the second through hole to be connected to the output end of the output shaft 3.

[0052] For example, the first through hole is located on the left side wall of the housing 4, and the second through hole is located on the right side wall of the housing 4. The left end of the input shaft 2 of the conversion mechanism passes through the first through hole and extends to the outside of the housing 4 to be connected to the lower end of the connecting rod 1. The generator 8 is arranged on the outside of the housing 4 and is located on the right side of the housing 4. The motor shaft at the input end of the generator 8 passes through the second through hole and extends into the installation cavity of the housing 4 to be connected to the right end of the output shaft 3 of the conversion mechanism.

[0053] In this embodiment, a first through hole and a second through hole are respectively provided on two opposite side walls of the housing 4 in the axial direction of the input shaft 2, so that the input end of the input shaft 2 can pass through the first through hole to be connected to the connecting rod 1 outside the housing 4, and at the same time, the output end of the output shaft 3 can pass through the second through hole to be connected to the motor shaft of the generator 8 outside the housing 4, thereby ensuring that the first through hole and the second through hole on the housing 4 can provide support for the input shaft 2 and the output shaft 3, thereby ensuring the normal operation of the input shaft 2 and the output shaft 3.

[0054] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the conversion mechanism also includes: a swing arm 5, which extends radially along the input shaft 2 and has a first end 51 and a second end 52, the first end 51 is hinged to the other end of the connecting rod 1, and the second end 52 is fixedly connected to the input shaft 2.

[0055] For example, the swing arm 5 extends radially along the input shaft 2 and has a long strip shape. The swing arm 5 is disposed between the connecting rod 1 and the input shaft 2 of the conversion mechanism. The first end 51 of the swing arm 5 is hinged to the connecting rod 1, and the second end 52 of the swing arm 5 is fixedly connected to the left end of the input shaft 2 of the conversion mechanism. When the connecting rod 1 reciprocates, it can drive the first end 51 of the swing arm 5 to rotate around the input shaft 2 of the conversion mechanism, thereby driving the input shaft 2 of the conversion mechanism to rotate, and then converting the reciprocating movement of the connecting rod 1 into the bidirectional rotation movement of the input shaft 2.

[0056] In this embodiment, by setting a swing arm 5, the mechanical energy generated by the reciprocating movement of the connecting rod 1 is effectively converted into the rotational kinetic energy of the bidirectional rotation of the input shaft 2, thereby completing the initial conversion of energy forms and preparing for the further conversion of the bidirectional rotational kinetic energy into the unidirectional rotational kinetic energy.

[0057] In one embodiment of the present invention, Figure 2 As shown, one end of the connecting rod 1 is provided with a first ball joint 11, and the connecting rod 1 is suitable for being connected to the suspension through the first ball joint 11, and the other end of the connecting rod 1 is provided with a second ball joint 12 and is connected to the first end 51 through the second ball joint 12.

[0058] For example, the first ball joint 11 of the connecting rod 1 is arranged at the upper end of the connecting rod 1, and the second ball joint 12 of the connecting rod 1 is arranged at the lower end of the connecting rod 1. The connecting rod 1 is connected to the vehicle suspension through the first ball joint 11, and the connecting rod 1 is connected to the first end 51 of the swing arm 5 through the second ball joint 12.

[0059] When the vehicle suspension vibrates upward, the connecting rod 1 is driven to move upward, and the upward movement of the connecting rod 1 drives the first end 51 of the swing arm 5 to rotate clockwise around the input shaft 2 of the conversion mechanism; when the vehicle suspension vibrates downward, the connecting rod 1 is driven to move downward, and the downward movement of the connecting rod 1 drives the first end 51 of the swing arm 5 to rotate counterclockwise around the input shaft 2 of the conversion mechanism.

[0060] By providing the first ball joint 11 and the second ball joint 12 of the connecting rod 1, this embodiment can effectively convert the mechanical energy generated by the vibration of the vehicle suspension into the kinetic energy of the up and down movement of the connecting rod 1, thereby effectively converting the mechanical energy generated by the up and down movement of the connecting rod 1 into the rotational kinetic energy of the bidirectional fixed-axis rotation of the swing arm 5, ultimately realizing the effective conversion of energy forms and inputting it into the input end of the input shaft 2 of the conversion mechanism.

[0061] In one embodiment of the present invention, Figure 1 As shown, a first gear 211 is provided on the outer ring of the first one-way bearing 21, and the first gear 211 is connected to the first output gear 31 through a first transmission member 6; a second gear 221 is provided on the outer ring of the second one-way bearing 22, wherein the second gear 221 is connected to the second output gear 32 through a second transmission member, or the second gear 221 is directly meshed with the second output gear 32.

[0062] For example, the first transmission member 6 is located between the first gear 211 and the first output gear 31, the first gear 211 is meshed with the first transmission member 6, and the first transmission member 6 is meshed with the first output gear 31. When the first one-way bearing 21 rotates with the input shaft 2, the first gear 211 rotates with the first one-way bearing 21, the rotation of the first gear 211 drives the first transmission member 6 to rotate, the rotation of the first transmission member 6 drives the first output gear 31 to rotate, and the rotation of the first output gear 31 drives the output shaft 3 to rotate, and finally the rotational kinetic energy is effectively transferred from the input shaft 2 to the output shaft 3.

[0063] In this embodiment, by arranging the first gear 211 on the outer ring of the first one-way bearing 21 and arranging the first transmission member 6 between the first gear 211 and the first output gear 31, the rotational kinetic energy on the input shaft 2 can be sequentially transmitted to the first gear 211 on the first one-way bearing 21, the first transmission member 6 and the first output gear 31 of the output shaft 3, and finally effectively transmitted to the output shaft 3. In addition, the first transmission member 6 can also adjust the rotation direction and effectively achieve the function of increasing speed and reducing torque.

[0064] For example, the second transmission member is located between the second gear 221 and the second output gear 32, the second gear 221 is meshed with the second transmission member, and the second transmission member is meshed with the second output gear 32. When the second one-way bearing 22 rotates with the input shaft 2, the second gear 221 rotates with the second one-way bearing 22, the rotation of the second gear 221 drives the second transmission member to rotate, the rotation of the second transmission member drives the second output gear 32 to rotate, and the rotation of the second output gear 32 drives the output shaft 3 to rotate, and finally the rotational kinetic energy is effectively transferred from the input shaft 2 to the output shaft 3.

[0065] In this embodiment, by setting a second gear 221 on the outer ring of the second one-way bearing 22 and a second transmission member between the second gear 221 and the second output gear 32, the rotational kinetic energy on the input shaft 2 can be transmitted to the second gear 221 on the second one-way bearing 22, the second transmission member and the second output gear 32 of the output shaft 3 in sequence, and finally effectively transmitted to the output shaft 3. In addition, the second transmission member can also adjust the rotation direction and effectively achieve the effect of increasing speed and reducing torque.

[0066] For another example, the second gear 221 of the second one-way bearing 22 is directly meshed with the second output gear 32 of the output shaft 3. When the second one-way bearing 22 rotates with the input shaft 2, the second gear 221 rotates with the second one-way bearing 22, and the rotation of the second gear 221 drives the second output gear 32 to rotate, and the rotation of the second output gear 32 drives the output shaft 3 to rotate, and finally the rotational kinetic energy is effectively transferred from the input shaft 2 to the output shaft 3.

[0067] In this embodiment, a second gear 221 is arranged on the outer ring of the second one-way bearing 22, and the second gear 221 and the second output gear 32 are directly meshed, so that the rotational kinetic energy on the input shaft 2 can be transmitted to the second gear 221 on the second one-way bearing 22 and the second output gear 32 of the output shaft 3 in sequence, and finally effectively transmitted to the output shaft 3.

[0068] In one embodiment of the present invention, Figure 1 As shown, the first transmission member 6 includes: an intermediate shaft 61, a first intermediate gear 62 and a second intermediate gear 63. The intermediate shaft 61 is parallel to the input shaft 2 and the output shaft 3 and is arranged at intervals. The first intermediate gear 62 and the second intermediate gear 63 are coaxially fixed on the intermediate shaft 61. The first intermediate gear 62 is meshed with the first gear 211, and the second intermediate gear 63 is meshed with the first output gear 31.

[0069] For example, the intermediate shaft 61 of the first transmission member 6 is located between the input shaft 2 and the output shaft 3. The intermediate shaft 61, the input shaft 2 and the output shaft 3 extend in the left-right direction and are arranged parallel to each other. The first intermediate gear 62 and the second intermediate gear 63 are fixedly connected to the intermediate shaft 61. The first intermediate gear 62 is located on the left side, and the second intermediate gear 63 is located on the right side. The first intermediate gear 62 is meshed with the first gear 211 of the first one-way bearing 21, and the second intermediate gear 63 is meshed with the first output gear 31 of the output shaft 3.

[0070] When the first gear 211 rotates with the first one-way bearing 21, the first gear 211 drives the first intermediate gear 62 to rotate, the first intermediate gear 62 drives the intermediate shaft 61 to rotate, the intermediate shaft 61 drives the second intermediate gear 63 to rotate, and the second intermediate gear 63 drives the first output gear 31 to rotate, thereby effectively transmitting the rotational kinetic energy on the first gear 211 of the first one-way bearing 21 to the first output gear 31 of the output shaft 3.

[0071] Therefore, by setting an intermediate shaft 61, a first intermediate gear 62 and a second intermediate gear 63 in the first transmission member 6, the rotational kinetic energy on the first gear 211 of the first one-way bearing 21 can be transmitted to the first intermediate gear 62, the intermediate shaft 61 and the second intermediate gear 63 in sequence, and finally effectively transmitted to the first output gear 31 of the output shaft 3.

[0072] In one embodiment of the present invention, Figure 1 As shown, the conversion mechanism also includes: a speed increaser 7, one end of the speed increaser 7 is connected to the output shaft 3, and the other end of the speed increaser 7 is connected to the generator 8. For example, the speed increaser 7 is arranged between the output shaft 3 and the motor shaft of the generator 8, the right end of the output shaft 3 is connected to one end of the speed increaser 7, and the motor shaft at the input end of the generator 8 is connected to the other end of the speed increaser 7.

[0073] In this embodiment, the speed increaser 7 is provided to further increase the rotation speed of the motor shaft at the input end of the generator 8, further meet the rotation speed requirement of the motor shaft at the input end of the generator 8, thereby further improving the power generation efficiency of the generator 8, better protecting the generator 8, and extending the service life of the generator 8.

[0074] like Figure 1 and Figure 2 As shown, the vehicle according to the second embodiment of the present invention comprises the suspension energy recovery device 100 according to the first embodiment of the present invention, and one end of the connecting rod 1 is connected to the suspension.

[0075] According to the vehicle of the embodiment of the present invention, by setting the suspension energy recovery device 100 of the first aspect, the mechanical energy generated by the up and down vibration of the vehicle suspension can be converted into unidirectional stable rotational kinetic energy for power generation, thereby effectively realizing energy conversion, improving the driving range and reducing production costs. At the same time, the suspension energy recovery device 100 can share part of the load borne by the vehicle shock absorber, thereby effectively protecting the shock absorber, improving the service life of the shock absorber, and reducing maintenance costs.

[0076] In one embodiment of the present invention, Figure 1 As shown, the number of teeth of the first gear 211 is greater than that of the first intermediate gear 62 , the diameter of the first intermediate gear 62 is smaller than that of the second intermediate gear 63 , and the number of teeth of the second intermediate gear 63 is greater than that of the first output gear 31 .

[0077] When the input shaft 2 rotates, the input shaft 2 drives the first gear 211 to rotate, and the angular velocity of the first gear 211 is the same as the angular velocity of the input shaft 2. The first gear 211 drives the first intermediate gear 62 to rotate, and the linear velocity of the first intermediate gear 62 is the same as the linear velocity of the first gear 211. Since the number of teeth of the first gear 211 is greater than the number of teeth of the first intermediate gear 62, the angular velocity of the first intermediate gear 62 is greater than the angular velocity of the first gear 211, thereby achieving a one-stage speed increase.

[0078] When the first intermediate gear 62 drives the second intermediate gear 63 to rotate, because the first intermediate gear 62 and the second intermediate gear 63 are coaxially arranged, the angular velocity of the first intermediate gear 62 is the same as the angular velocity of the second intermediate gear 63. Because the diameter of the first intermediate gear 62 is smaller than the diameter of the second intermediate gear 63, the linear velocity of the second intermediate gear 63 is greater than the linear velocity of the first intermediate gear 62, thereby achieving a two-stage speed increase.

[0079] When the second intermediate gear 63 drives the first output gear 31 to rotate, the linear speed of the first output gear 31 is the same as the linear speed of the second intermediate gear 63. Since the number of teeth of the second intermediate gear 63 is greater than that of the first output gear 31, the angular speed of the first output gear 31 is greater than the angular speed of the second intermediate gear 63, thereby achieving a three-stage speed increase. Since the first output gear 31 is fixedly connected to the output shaft 3, the angle of rotation of the output shaft 3 is the same as that of the first output gear 31. After three-stage speed change, the low-speed rotation of the input shaft 2 is converted into the high-speed rotation of the output shaft 3 and transmitted to the generator 8.

[0080] Therefore, the number of teeth of the first gear 211 is greater than the number of teeth of the first intermediate gear 62, which can effectively increase the angular velocity of the first intermediate gear 62; the diameter of the first intermediate gear 62 is smaller than the diameter of the second intermediate gear 63, which can effectively increase the linear velocity of the second intermediate gear 63; the number of teeth of the second intermediate gear 63 is greater than the number of teeth of the first output gear 31, which can effectively increase the angular velocity of the first output gear 31, thereby effectively increasing the angular velocity of the output shaft 3. Through the three-stage speed change, multi-stage speed increase and torque reduction are achieved, so that the low-speed rotation of the input shaft 2 is converted into the high-speed rotation of the output shaft 3 to meet the speed requirement of the input end of the generator 8, thereby effectively improving the speed and power generation efficiency of the input end of the generator 8, and then effectively protecting the generator 8 and extending the service life of the generator 8.

[0081] In one embodiment of the present invention, Figure 1 As shown, the first gear 211 is annular or a sector gear with a central angle greater than or equal to 180°; and / or the second gear 221 is annular or a sector gear with a central angle greater than or equal to 180°.

[0082] That is to say, the first gear 211 can be a ring gear. In this case, the first gear 211 can be sleeved on the outer ring of the first one-way bearing 21. By setting the first gear 211 as a ring gear, the first gear 211 can be easily processed and produced.

[0083] The first gear 211 may also be a sector gear with a central angle greater than or equal to 180°. For example, the central angle of the first gear 211 may be 180°, 225° and 270°. In this case, the first gear 211 is arranged on a portion of the outer ring of the first one-way bearing 21. By setting the first gear 211 as a sector gear with a central angle greater than or equal to 180°, the weight of the first gear 211 can be effectively reduced, the transmission efficiency can be improved, and the size of the first gear 211 can be effectively reduced, which is convenient for layout and saves materials.

[0084] The second gear 221 may be a ring gear. In this case, the second gear 221 may be sleeved on the outer ring of the second one-way bearing 22. By setting the second gear 221 as a ring gear, the second gear 221 can be easily processed and produced.

[0085] The second gear 221 may also be a sector gear with a central angle greater than or equal to 180°. For example, the central angle of the second gear 221 may be 180°, 225° and 270°. In this case, the second gear 221 is arranged on a portion of the outer ring of the second one-way bearing 22. By setting the second gear 221 as a sector gear with a central angle greater than or equal to 180°, the weight of the second gear 221 can be effectively reduced, the transmission efficiency can be improved, and the size of the second gear 221 can be effectively reduced, which is convenient for layout and saves materials.

[0086] For example, according to the movement stroke of the reciprocating member, the first gear 211 and the second gear 221 are set as semicircular gears with a central angle equal to 180 degrees. When the reciprocating motion of the reciprocating member causes the input shaft 2 of the conversion mechanism to rotate, the angle range of the input shaft 2 to reciprocate is within 0 to 180 degrees, and the semicircular structure of the first gear 211 and the second gear 221 can meet the rotation requirements and leave enough margin.

[0087] Therefore, by setting the first gear 211 or the second gear 221 as a ring gear, the first gear 211 or the second gear 221 can be easily processed and produced; by setting the first gear 211 or the second gear 221 as a sector gear with a central angle greater than or equal to 180°, not only can the reciprocating rotation requirement of the input shaft 2 be met, but also the weight of the gear can be effectively reduced, thereby effectively improving the efficiency of the rotational kinetic energy transmission. In addition, the size of the first gear 211 or the second gear 221 can also be effectively reduced, which is convenient for layout and saves costs.

[0088] In one embodiment of the present invention, Figure 1 As shown, the first gear 211 is integrally formed with the outer ring of the first one-way bearing 21 , and / or the second gear 221 is integrally formed with the outer ring of the second one-way bearing 22 .

[0089] That is to say, only the first gear 211 is integrally formed with the outer ring of the first one-way bearing 21; only the second gear 221 is integrally formed with the outer ring of the second one-way bearing 22; the first gear 211 is integrally formed with the outer ring of the first one-way bearing 21 and the second gear 221 is integrally formed with the outer ring of the second one-way bearing 22.

[0090] For example, the first gear 211 is integrally formed with the outer ring of the first one-way bearing 21, and the second gear 221 is integrally formed with the outer ring of the second one-way bearing 22. When the input shaft 2 rotates in one direction, the first one-way bearing 21 is driven to rotate together, and the first gear 211 rotates together with the first one-way bearing 21. When the input shaft 2 rotates in the other direction, the second one-way bearing 22 is driven to rotate together, and the second gear 221 rotates together with the second one-way bearing 22.

[0091] Thus, the outer ring of the one-way bearing is integrally formed with the gear, so that the rotational kinetic energy on the input shaft 2 can be effectively transmitted to the first gear 211 or the second gear 221 regardless of whether the input shaft 2 rotates clockwise or counterclockwise, thereby effectively improving the efficiency of energy conversion on the input shaft 2 and further reducing production costs. At the same time, it can effectively simplify the structure, improve accuracy, and reduce operating noise. It can also reduce the number of parts and improve assembly efficiency.

[0092] In one embodiment of the present invention, Figure 1As shown, the speed increaser 7 includes: a first speed increaser gear 71 and a second speed increaser gear 72 that mesh with each other, the first speed increaser gear 71 is sleeved and fixed on the output shaft 3, the second speed increaser gear 72 is suitable for being coaxially fixed with the motor shaft of the generator 8, and the number of teeth of the first speed increaser gear 71 is greater than the number of teeth of the second speed increaser gear 72.

[0093] For example, the first speed-increasing gear 71 of the speed-increasing gear 7 is arranged at the right end of the output shaft 3 and is fixedly connected to the output shaft 3. The second speed-increasing gear 72 of the speed-increasing gear 7 is arranged at the left end of the motor shaft of the generator 8 and is fixedly connected to the motor shaft. The number of teeth of the first speed-increasing gear 71 is greater than the number of teeth of the second speed-increasing gear 72.

[0094] When the output shaft 3 rotates, the output shaft 3 drives the first speed-increasing gear 71 to rotate, and the angular velocity of the first speed-increasing gear 71 is the same as the angular velocity of the output shaft 3. The first speed-increasing gear 71 drives the second speed-increasing gear 72 to rotate, and the linear velocity of the first speed-increasing gear 71 is the same as the linear velocity of the second speed-increasing gear 72. Since the number of teeth of the first speed-increasing gear 71 is greater than the number of teeth of the second speed-increasing gear 72, the angular velocity of the second speed-increasing gear 72 is greater than the angular velocity of the first speed-increasing gear 71. The second speed-increasing gear 72 drives the motor shaft to rotate, and the angular velocity of the motor shaft is the same as the angular velocity of the second speed-increasing gear 72 and greater than the output shaft 3.

[0095] This embodiment provides a first speed-increasing gear 71 and a second speed-increasing gear 72 that mesh with each other, thereby effectively increasing the linear velocity of the first speed-increasing gear 71 and the angular velocity of the second speed-increasing gear 72, thereby effectively increasing the angular velocity of the motor shaft of the generator 8, and further achieving speed increase and torque reduction of the motor shaft.

[0096] The following will refer to Figure 1 and Figure 2 A vehicle according to a specific embodiment of the present invention is described.

[0097] The vehicle includes a suspension and a suspension energy recovery device 100 , and the suspension energy recovery device 100 includes: a connecting rod 1 , a conversion mechanism, a generator 8 , an energy storage device and a rectifier.

[0098] The conversion mechanism includes: a swing arm 5, an input shaft 2, a first one-way bearing 21, a second one-way bearing 22, a first transmission member 6, an output shaft 3, a first output gear 31, a second output gear 32, a speed increaser 7 and a housing 4. The housing 4 has a mounting cavity, and the input shaft 2, the first one-way bearing 21, the second one-way bearing 22, the output shaft 3, the first output gear 31, the second output gear 32, the first transmission member 6 and the speed increaser 7 are all arranged in the mounting cavity of the housing 4, and a first through hole is provided on the left side wall of the housing 4, and a second through hole is provided on the right side wall of the housing 4.

[0099] The input shaft 2 extends left and right, the first one-way bearing 21 and the second one-way bearing 22 are arranged on the input shaft 2 and are distributed left and right, the first gear 211 is arranged on the first one-way bearing 21, and the second gear 221 is arranged on the second one-way bearing 22. The first transmission member 6 includes: an intermediate shaft 61, a first intermediate gear 62 and a second intermediate gear 63, the intermediate shaft 61 extends left and right, and the first intermediate gear 62 and the second intermediate gear 63 are arranged on the intermediate shaft 61 at intervals left and right; the output shaft 3 extends left and right and is provided with a first output gear 31 and a second output gear 32 arranged at intervals left and right; the speed increaser 7 includes: a first speed increase gear 71 and a second speed increase gear 72.

[0100] The connecting rod 1 is arranged vertically, and the upper end of the connecting rod 1 is provided with a first ball joint 11, and is connected to the suspension through the first ball joint 11, and the lower end of the connecting rod 1 is provided with a second ball joint 12 and is hinged to the rear end of the swing arm 5 through the second ball joint 12. The left end of the input shaft 2 passes through the first through hole and extends out of the housing 4, and the front end of the swing arm 5 is fixedly connected to the left end of the input shaft 2 extending out of the housing 4.

[0101] The first gear 211 meshes with the first intermediate gear 62, the second intermediate gear 63 meshes with the first output gear 31, and the second gear 221 meshes with the second output gear 32. The first speed-increasing gear 71 is fixedly connected to the output shaft 3, the second speed-increasing gear 72 is fixedly connected to the motor shaft at the input end of the generator 8, and the first speed-increasing gear 71 meshes with the second speed-increasing gear 72. The output end of the generator 8 is connected to the input end of the rectifier, and the output end of the rectifier is connected to the energy storage device.

[0102] The generator 8 can convert the rotational kinetic energy of the motor shaft into AC power and transmit it to the rectifier. The rectifier converts the AC power generated by the generator 8 into DC power, which is then input into the energy storage device after filtering to provide a charging voltage for the energy storage device, thus acting as a charger. The energy storage device has a charging and discharging function and can be used to store the electric energy generated by the generator 8 and release the stored electric energy when needed.

[0103] When the vehicle suspension vibrates upward, it drives the connecting rod 1 to move upward, and the connecting rod 1 drives the swing arm 5 to rotate clockwise around the input shaft 2. The input shaft 2 drives the first one-way bearing 21 to rotate clockwise, and the first one-way bearing 21 drives the first gear 211 to rotate clockwise. The first gear 211 drives the first intermediate gear 62 to rotate counterclockwise, and the first intermediate gear 62 drives the intermediate shaft 61 to rotate counterclockwise. The intermediate shaft 61 drives the second intermediate gear 63 to rotate counterclockwise, and the second intermediate gear 63 drives the first output gear 31 to rotate clockwise. The first output gear 31 drives the output shaft 3 to rotate clockwise, and the output shaft 3 drives the first speed-increasing gear 71 to rotate clockwise, and the first speed-increasing gear 71 drives the second speed-increasing gear 72 to rotate counterclockwise, and the second speed-increasing gear 72 drives the motor shaft to rotate counterclockwise. The counterclockwise rotation of the motor shaft drives the generator 8 to generate electricity, and the current generated by the generator 8 is processed by the rectifier and transmitted to the energy storage device to charge the energy storage device.

[0104] When the vehicle suspension vibrates downward, it drives the connecting rod 1 to move downward, and the connecting rod 1 drives the swing arm 5 to rotate counterclockwise around the input shaft 2, and the input shaft 2 drives the second one-way bearing 22 to rotate counterclockwise, and the second one-way bearing 22 drives the second gear 221 to rotate counterclockwise, and the second gear 221 drives the second output gear 32 to rotate clockwise, and the second output gear 32 drives the output shaft 3 to rotate clockwise, and the output shaft 3 drives the first speed-increasing gear 71 to rotate clockwise, and the first speed-increasing gear 71 drives the second speed-increasing gear 72 to rotate counterclockwise, and the second speed-increasing gear 72 drives the motor shaft to rotate counterclockwise, and the counterclockwise rotation of the motor shaft drives the generator 8 to generate electricity, and the current generated by the generator 8 is processed by the rectifier and transmitted to the energy storage device to charge the energy storage device.

[0105] The vehicle according to the embodiment of the present invention can convert the mechanical energy generated by the up and down vibration of the vehicle suspension into unidirectional stable rotational kinetic energy for power generation, thereby effectively realizing energy conversion, improving the driving range and reducing production costs. At the same time, the conversion mechanism can share part of the load borne by the vehicle shock absorber, thereby effectively protecting the shock absorber, improving the service life of the shock absorber and reducing maintenance costs.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0107] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0108] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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 the present invention can be understood according to specific circumstances.

[0109] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0110] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A suspension energy recovery device, characterized in that: include: A connecting rod, one end of which is suitable for being connected to the suspension; A conversion mechanism, the conversion mechanism comprising: an input shaft, the input shaft being connected to the other end of the connecting rod, the input shaft being provided with a first one-way bearing and a second one-way bearing arranged at intervals, the outer ring and the inner ring of the first one-way bearing being rotatable in a direction opposite to the outer ring and the inner ring of the second one-way bearing; an output shaft, wherein a first output gear and a second output gear are sleeved on the output shaft and are arranged at intervals, wherein the first output gear is drivingly connected to the outer ring of the first one-way bearing, the second output gear is drivingly connected to the outer ring of the second one-way bearing, and the rotation direction of the first one-way bearing when driving the output shaft to rotate through the first output gear is the same as the rotation direction of the second one-way bearing when driving the output shaft to rotate through the second output gear; Generator, the output shaft is drivingly connected to the motor shaft of the generator.

2. The suspension energy recovery device according to claim 1, characterized in that: Also includes: An energy storage device, the energy storage device is connected to the generator and is used to store the electric energy generated by the generator; A rectifier is connected between the generator and the energy storage device.

3. The suspension energy recovery device according to any one of claims 1 to 2, characterized in that: The conversion mechanism further includes: a shell having a mounting cavity, and the input shaft and the output shaft are both arranged in the mounting cavity.

4. The suspension energy recovery device according to claim 3, characterized in that: The shell is respectively formed with a first through hole and a second through hole on two opposite side walls in the axial direction of the input shaft. The input end of the input shaft extends through the first through hole to the outside of the shell to be connected to the connecting rod. The generator is arranged on the outside of the shell. The motor shaft of the generator extends into the mounting cavity through the second through hole to be connected to the output end of the output shaft.

5. The suspension energy recovery device according to any one of claims 1-2, characterized in that: The conversion mechanism also includes: A swing arm extends radially along the input shaft and has a first end and a second end, the first end is hinged to the other end of the connecting rod, and the second end is fixedly connected to the input shaft.

6. The suspension energy recovery device according to claim 5, characterized in that: One end of the connecting rod is provided with a first ball joint, and the connecting rod is suitable for being connected to the suspension through the first ball joint. The other end of the connecting rod is provided with a second ball joint and is connected to the first end through the second ball joint.

7. The suspension energy recovery device according to any one of claims 1-2, characterized in that: A first gear is disposed on the outer ring of the first one-way bearing, and the first gear is transmission-connected to the first output gear via a first transmission member; A second gear is disposed on the outer ring of the second one-way bearing, wherein the second gear is transmission-connected with the second output gear via a second transmission member, or the second gear is directly meshed with the second output gear.

8. The suspension energy recovery device according to claim 7, characterized in that: The first transmission member includes: an intermediate shaft, a first intermediate gear and a second intermediate gear. The intermediate shaft is parallel to the input shaft and the output shaft and arranged at intervals. The first intermediate gear and the second intermediate gear are coaxially fixed on the intermediate shaft. The first intermediate gear is meshed with the first gear, and the second intermediate gear is meshed with the first output gear.

9. The suspension energy recovery device according to claim 1, characterized in that: The conversion mechanism further includes: a speed increaser, one end of which is connected to the output shaft, and the other end of which is connected to the generator.

10. A vehicle, characterized in that: It comprises a suspension and a suspension energy recovery device according to any one of claims 1 to 9, wherein one end of the connecting rod is connected to the suspension.

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