Shock absorber and vehicle

Abstract

The invention relates to the technical field of automobile vibration energy recovery, and discloses a shock absorber and a vehicle. The shock absorber comprises an inner cylinder body, a piston rod is arranged in the inner cylinder body, the inner cylinder body comprises a rod cavity and a rodless cavity, and hydraulic oil flows to the rod cavity from the rodless cavity; the outer cylinder body is arranged on the outer side of the inner cylinder body in a sealed mode, an oil return cavity is formed between the outer cylinder body and the inner cylinder body, the oil return cavity is communicated with the rod cavity, hydraulic oil flows through the oil return cavity, and the hydraulic oil flows to the rodless cavity from the oil return cavity; the rotating piece is arranged in the oil return cavity, and when the hydraulic oil flows to the rodless cavity from the oil return cavity, the rotating piece rotates along with flowing of the hydraulic oil; and the power generation mechanism is in transmission connection with the rotating part and converts mechanical energy of rotation of the rotating part into electric energy. The hydraulic oil circularly flows among the rodless cavity, the rod cavity and the oil return cavity, the rotating piece is driven by the hydraulic oil flowing in the oil return cavity to rotate, the rotating piece outputs mechanical energy and converts the mechanical energy into electric energy through the power generation mechanism, and therefore energy generated when a vehicle is subjected to road surface vibration is converted into the electric energy for power generation.

Description

Technical Field

[0001] The invention relates to the technical field of automobile vibration energy recovery, and in particular to a shock absorber and a vehicle. Background Art

[0002] Vibration phenomenon generally occurs when a motor vehicle is driving. Due to the unevenness of the road surface, the motor vehicle is bumpy during driving, which causes the vibration of the vehicle body.

[0003] At present, the shock absorber for automobiles is usually composed of pistons, cylinders, valves and other parts. The piston moves up and down in the cylinder, which is filled with shock-absorbing oil. When the shock absorber is subjected to vibration, the shock-absorbing oil will circulate and there will be intense friction and collision between the molecules inside. This friction and collision will convert the mechanical energy generated by the vibration transmitted from the road surface to the vehicle body into heat energy, thereby attenuating the vibration and improving driving comfort. However, after the shock absorber converts the mechanical energy into heat energy, the heat energy is released into the atmosphere, and the energy of the vehicle subjected to road vibration is not reasonably utilized. Summary of the invention

[0004] In view of this, the present invention provides a shock absorber to solve the problem that the energy of road vibration on a vehicle is not reasonably utilized. At the same time, the present invention provides a vehicle.

[0005] In a first aspect, the present invention provides a shock absorber, comprising:

[0006] An inner cylinder body, wherein a piston rod is arranged inside, the inner cylinder body comprises a rod chamber and a rodless chamber, and the hydraulic oil is suitable for flowing from the rodless chamber to the rod chamber;

[0007] An outer cylinder body, which is sealed and arranged on the outer side of the inner cylinder body, and an oil return chamber is formed between the outer cylinder body and the inner cylinder body, wherein the oil return chamber is connected with the rod chamber and is suitable for circulating hydraulic oil, and the hydraulic oil is suitable for flowing from the oil return chamber to the rodless chamber;

[0008] A rotating member is disposed in the oil return chamber, and when the hydraulic oil flows from the oil return chamber to the rodless chamber, the rotating member is adapted to rotate along with the flow of the hydraulic oil;

[0009] The power generation mechanism is transmission-connected with the rotating member and is suitable for converting the mechanical energy of the rotating member into electrical energy.

[0010] Beneficial effects: The present invention provides a shock absorber, wherein an inner cylinder body, a piston rod and an outer cylinder body together constitute the main structure of the shock absorber, the piston rod reciprocates in the inner cylinder body, so that the hydraulic oil circulates between the rodless chamber, the rod chamber and the oil return chamber, and the rotating part arranged in the oil return chamber can be driven to rotate by the hydraulic oil flowing in the oil return chamber, the rotating part outputs mechanical energy and converts the mechanical energy into electrical energy through a power generation mechanism, thereby converting the energy of road vibration exerted on the vehicle into electrical energy for power generation, solving the problem that the energy of road vibration exerted on the vehicle is not reasonably utilized at present.

[0011] In an optional embodiment, the shock absorber further comprises an intermediate cylinder body between the inner cylinder body and the outer cylinder body, the intermediate cylinder body is sealed and arranged on the outer side of the inner cylinder body, an oil passage is formed between the intermediate cylinder body and the inner cylinder body, the oil passage is connected between the rod chamber and the oil return chamber, and the rotating member is provided at the connection between the oil passage and the oil return chamber;

[0012] The hydraulic oil is suitable for flowing from the rod chamber to the oil passage, and after driving the rotating member to rotate, flowing from the oil passage to the oil return chamber.

[0013] Beneficial effect: An oil passage is formed on the outside of the middle cylinder body of the inner cylinder body, thereby forming an oil passage outside the outlet of the rod chamber, and the rotating part is arranged at the end of the oil passage, that is, the connecting point between the oil passage and the return oil chamber. In this way, the hydraulic oil flowing out of the rod chamber can flow in the oil passage with a smaller volume to form a larger flow rate, thereby increasing the rotation speed of the rotating part when flowing through the rotating part, improving the conversion efficiency of mechanical energy into electrical energy, and thus improving the power generation efficiency.

[0014] In an optional embodiment, a first through hole is provided on the side wall of the inner cylinder body, and the first through hole is located inside the middle cylinder body to connect the rod chamber and the oil passage.

[0015] Beneficial effect: A first through hole located inside the middle cylinder body is provided on the side wall of the inner cylinder body to connect the rod chamber and the oil passage, thereby facilitating the hydraulic oil to flow from the rod chamber to the oil passage.

[0016] In an optional embodiment, a second through hole is provided on the side wall of the intermediate cylinder body, and the second through hole is located inside the outer cylinder body to connect the oil passage and the oil return chamber;

[0017] The second through hole is connected with a transition ring, which is arranged in a direction perpendicular to the axis of the intermediate cylinder body and is provided with the rotating member.

[0018] Beneficial effects: A second through hole is provided on the side wall of the middle cylinder body to connect the oil passage and the oil return chamber, thereby facilitating the hydraulic oil to flow from the oil passage to the oil return chamber; at the same time, a transition ring is provided at the second through hole to provide an installation position for the rotating part.

[0019] In an optional embodiment, the piston rod includes a rod body and a piston block connected to the end of the rod body, and the piston block is provided with a first one-way valve, which is suitable for directing hydraulic oil from the rodless chamber to the rod chamber.

[0020] Beneficial effect: By setting a first one-way valve on the piston block of the piston rod, the first one-way valve can guide the hydraulic oil from the rodless chamber to the rod chamber when the piston rod of the shock absorber is working, and prevent the hydraulic oil from flowing back from the rod chamber to the rodless chamber.

[0021] In an optional embodiment, a second one-way valve is provided at the bottom of the inner cylinder body, and the second one-way valve is suitable for guiding the hydraulic oil from the return oil chamber to the rodless chamber.

[0022] Beneficial effect: By providing a second one-way valve at the bottom of the inner cylinder body, the second one-way valve can guide the hydraulic oil from the return oil chamber back to the rodless chamber when the piston rod of the shock absorber returns, and prevent the hydraulic oil from flowing back from the rodless chamber to the return oil chamber.

[0023] In an optional embodiment, the power generation mechanism includes:

[0024] A rotating shaft connected to the rotating member and adapted to rotate along with the rotation of the rotating member;

[0025] a rotor connected to the rotating shaft and adapted to generate a magnetic field;

[0026] The stator is fixedly arranged on the outer peripheral side of the rotor and is suitable for generating an induced electromotive force to generate electricity as the rotor rotates.

[0027] Beneficial effect: The rotating shaft connected to the rotating part is driven by the rotating part to rotate, and drives the rotor to rotate, so that the magnetic field of the rotor generates rotating magnetic flux lines, and according to the law of electromagnetic induction, an induced electromotive force is generated in the stator to generate electricity, thereby converting mechanical energy into electrical energy.

[0028] In an optional embodiment, the power generation mechanism further includes a shell, the stator is fixedly provided on the inner wall of the shell, and the shell is detachably connected to the outer cylinder.

[0029] Beneficial effects: The housing provides an installation position for the stator of the power generation mechanism; the housing can be detachably connected to the outer cylinder body, so that the power generation mechanism can be assembled to the main structure of the shock absorber.

[0030] In an optional embodiment, the rotating member is configured as a turbine.

[0031] In a second aspect, the present invention further provides a vehicle comprising a vehicle body, a wheel axle and the shock absorber described in any of the above-mentioned embodiments, wherein a plurality of the shock absorbers are provided and are respectively arranged between the vehicle body and the wheel axle, one of the piston rod or the outer cylinder body of the shock absorber is hinged to one of the vehicle body and the wheel axle, and the other of the piston rod or the outer cylinder body is hinged to the other of the vehicle body and the wheel axle.

[0032] Beneficial effects: The present invention provides a vehicle, in which a plurality of shock absorbers arranged between the vehicle body and the wheel axle can absorb the vibration energy transmitted from the wheel axle to the vehicle body, and utilize the shock absorbers to convert the mechanical energy of the vibration into electrical energy for power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic structural diagram of a shock absorber provided by the present invention;

[0035] Figure 2 A partial enlarged view of a power generation mechanism of a shock absorber provided by the present invention;

[0036] Figure 3 A schematic diagram of the flow direction of hydraulic oil during operation of a piston rod of a shock absorber provided by the present invention;

[0037] Figure 4 A schematic diagram of the flow direction of hydraulic oil during return operation of the piston rod of a shock absorber provided by the present invention.

[0038] Description of reference numerals:

[0039] 1. Inner cylinder; 101. First through hole; 102. Second one-way valve;

[0040] 2. Piston rod; 201. Rod body; 2011. First installation position; 202. Piston block; 2021. First one-way valve;

[0041] 3. With rod cavity;

[0042] 4. No rod cavity;

[0043] 5. Outer cylinder;

[0044] 6. Oil return chamber;

[0045] 7. Rotating parts;

[0046] 8. Power generation mechanism; 801. Rotating shaft; 802. Rotor; 8021. Rotor core; 8022. Permanent magnet; 803. Stator; 8031. Stator core; 8032. Stator winding; 804. Housing;

[0047] 9. middle cylinder body; 901. second through hole;

[0048] 10. Oil passage;

[0049] 11. Transition ring;

[0050] 12. Dust cover;

[0051] 13. bottom cover; 1301. second installation position;

[0052] 14. The first sealing ring;

[0053] 15. Second sealing ring;

[0054] 16. Wire. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0059] Combine the following Figure 1-Figure 4 , describing an embodiment of the present invention.

[0060] According to an embodiment of the present invention, on the one hand, a vibration absorber is provided, such as Figure 1 As shown, it includes: an inner cylinder body 1, a piston rod 2, an outer cylinder body 5, a rotating part 7 and a power generation mechanism 8.

[0061] A piston rod 2 is arranged inside the inner cylinder body 1, and the inner cylinder body 1 includes a rod chamber 3 and a rodless chamber 4, and the hydraulic oil is suitable for flowing from the rodless chamber 4 to the rod chamber 3; the outer cylinder body 5 is sealed and arranged on the outer side of the inner cylinder body 1, and an oil return chamber 6 is formed between the outer cylinder body 5 and the inner cylinder body 1, and the oil return chamber 6 is connected with the rod chamber 3 and is suitable for circulating hydraulic oil, and the hydraulic oil is suitable for flowing from the oil return chamber 6 to the rodless chamber 4; the rotating part 7 is arranged in the oil return chamber 6, and when the hydraulic oil flows from the oil return chamber 6 to the rodless chamber 4, the rotating part 7 is suitable for rotating with the flow of the hydraulic oil; the power generation mechanism 8 is transmission connected with the rotating part 7, and is suitable for converting the mechanical energy of the rotation of the rotating part 7 into electrical energy.

[0062] In the above embodiment, the inner cylinder body 1, the piston rod 2 and the outer cylinder body 5 together constitute the main structure of the shock absorber. The piston rod 2 reciprocates in the inner cylinder body 1, so that the hydraulic oil circulates between the rodless chamber 4, the rod chamber 3 and the return oil chamber 6. The rotating member 7 arranged in the return oil chamber 6 can be driven to rotate by the hydraulic oil flowing in the return oil chamber 6. The rotating member 7 outputs mechanical energy and converts the mechanical energy into electrical energy through the power generation mechanism 8, thereby converting the energy of the vehicle's road vibration into electrical energy for power generation, which solves the problem that the energy of the vehicle's road vibration is not reasonably utilized.

[0063] Specifically, Figure 1As shown, when the piston rod 2 of the shock absorber is in process operation, the piston rod 2 moves downward in the inner cylinder body 1 for a compression stroke, the volume of the rodless chamber 4 decreases and the volume of the rod chamber 3 increases, and the hydraulic oil now flows from the rodless chamber 4 to the rod chamber 3, and further flows from the rod chamber 3 to the oil return chamber 6; when the piston rod 2 of the shock absorber is in return operation, the piston rod 2 moves upward in the inner cylinder body 1 for a recovery stroke, the volume of the rodless chamber 4 increases and the volume of the rod chamber 3 decreases, and the hydraulic oil now flows from the rod chamber 3 to the oil return chamber 6, and further flows back to the rodless chamber 4 from the oil return chamber 6; in this way, when the vehicle is subjected to road vibration and the piston rod 2 reciprocates, the hydraulic oil circulates between the rodless chamber 4, the rod chamber 3 and the oil return chamber 6, thereby driving the rotating part 7 in the oil return chamber 6 to rotate, so as to generate electricity through the power generation mechanism 8.

[0064] Furthermore, if Figure 1 As shown, the rotating member 7 includes a rotating part and a bracket for supporting the rotating part. The bracket is fixed to the side wall of the inner cylinder body 1 or the outer cylinder body 5 to fix the position of the rotating member 7, so that the rotating member 7 can be driven by the flowing hydraulic oil to rotate in the return oil chamber 6.

[0065] Furthermore, if Figure 1 As shown, the inner cylinder body 1 and the outer cylinder body 5 are cylindrical as a whole, and a dust cover 12 and a bottom cover 13 are respectively installed at both ends for sealing the cylinder body. The dust cover 12 is installed on the same side of the rodless cavity 4, and the piston rod 2 passes through the dust cover 12, and a first mounting position 2011 is provided at the end of the piston rod 2 passing through; the bottom cover 13 is installed on the same side of the rod cavity 3, and a second mounting position 1301 is provided. The shock absorber is installed on the vehicle through the first mounting position 2011 and the second mounting position 1301. As an alternative embodiment, the inner cylinder body 1 and the outer cylinder body 5 can be set to a structure with a closed bottom and an open top, and then there is no need to set the bottom cover 13.

[0066] Furthermore, if Figure 1 As shown, the power generation mechanism 8 can be set as an AC generator, a DC generator, etc. The power generation mechanism 8 is electrically connected to a wire 16 for power transmission, and the wire 16 is connected to the power supply system in the vehicle to provide auxiliary power supply to the entire vehicle. As an alternative embodiment, the wire 16 can be connected to a battery to charge it, so that the battery can provide auxiliary power supply to the entire vehicle.

[0067] In some embodiments, Figure 1 As shown, the shock absorber also includes an intermediate cylinder body 9 located between the inner cylinder body 1 and the outer cylinder body 5. The intermediate cylinder body 9 is sealed and arranged on the outer side of the inner cylinder body 1. An oil passage 10 is formed between the intermediate cylinder body 9 and the inner cylinder body 1. The oil passage 10 is connected between the rod chamber 3 and the oil return chamber 6. A rotating part 7 is provided at the connection between the oil passage 10 and the oil return chamber 6. The hydraulic oil is suitable for flowing from the rod chamber 3 to the oil passage 10, and flows from the oil passage 10 to the oil return chamber 6 after driving the rotating part 7 to rotate.

[0068] In the above embodiment, an intermediate cylinder body 9 is formed on the outer side of the inner cylinder body 1, thereby forming an oil passage 10 on the outer side of the outlet of the rod chamber 3, and the rotating member 7 is arranged at the end of the oil passage 10, that is, at the connection point between the oil passage 10 and the return oil chamber 6. In this way, the hydraulic oil flowing out of the rod chamber 3 can flow in the oil passage 10 with a smaller volume to form a larger flow rate, thereby increasing the rotation speed of the rotating member 7 when flowing through the rotating member 7, improving the conversion efficiency of mechanical energy into electrical energy, and thus improving the power generation efficiency.

[0069] Specifically, Figure 1 As shown, in this embodiment, an oil passage 10 is additionally provided in the oil return chamber 6. At this time, the hydraulic oil intended to flow from the rod chamber 3 to the oil return chamber 6 will flow through the oil passage 10 and then flow to the oil return chamber 6. Specifically, when the hydraulic oil flows out of the rod chamber 3, it first flows into the oil passage 10, flows in the oil passage 10 and drives the rotating member 7 to rotate at the connection between the oil passage 10 and the oil return chamber 6, and then flows out of the oil passage 10 and enters the oil return chamber 6.

[0070] Furthermore, if Figure 1 As shown, the intermediate cylinder body 9 is cylindrical as a whole and is fixedly mounted on the outer wall of the inner cylinder body 1. The area between the outer wall of the inner cylinder body 1 and the inner wall of the intermediate cylinder body 9 forms an oil passage 10. At the same time, a first sealing ring 14 and a second sealing ring 15 are provided between the outer wall of the inner cylinder body 1 and the inner wall of the intermediate cylinder body 9 to ensure the closedness of the oil passage 10.

[0071] In some embodiments, Figure 1 As shown, a first through hole 101 is provided on the side wall of the inner cylinder body 1 . The first through hole 101 is located inside the middle cylinder body 9 to connect the rod cavity 3 and the oil passage 10 .

[0072] In the above embodiment, a first through hole 101 located inside the middle cylinder body 9 is provided on the side wall of the inner cylinder body 1 to connect the rod chamber 3 and the oil passage 10 , thereby facilitating the flow of hydraulic oil from the rod chamber 3 to the oil passage 10 .

[0073] Specifically, Figure 1 As shown, since the inner cylinder body 1 and the middle cylinder body 9 are both configured as cylindrical structures, a plurality of first through holes 101 can be provided along the circumferential direction of the side wall of the inner cylinder body 1 to improve the oil passing efficiency.

[0074] In some embodiments, Figure 1 As shown, the side wall of the intermediate cylinder body 9 is provided with a second through hole 901, and the second through hole 901 is located on the inner side of the outer cylinder body 5 to connect the oil passage 10 and the oil return chamber 6; the second through hole 901 is connected with a transition ring 11, which is arranged in a direction perpendicular to the axis of the intermediate cylinder body 9 and is provided with a rotating part 7.

[0075] In the above embodiment, a second through hole 901 is provided on the side wall of the intermediate cylinder body 9 to connect the oil passage 10 and the oil return chamber 6, so as to facilitate the flow of hydraulic oil from the oil passage 10 to the oil return chamber 6; at the same time, a transition ring 11 is provided at the second through hole 901 to provide an installation position for the rotating part 7.

[0076] Specifically, Figure 1 As shown, since the hydraulic oil in the oil passage 10 flows along the axial direction of the intermediate cylinder 9, that is, Figure 1 In the vertical direction of the perspective, if the rotating member 7 and the power generation mechanism 8 connected to it are directly arranged along the axial direction of the intermediate cylinder body 9, it will interfere with the flow path of the hydraulic oil, and the arrangement is difficult; for this reason, a transition ring 11 is provided to guide the flow direction of the hydraulic oil at the outlet of the oil passage 10 to be perpendicular to the axis of the intermediate cylinder body 9, that is, Figure 1 In the horizontal direction of the viewing angle, the rotating member 7 and the power generation mechanism 8 connected thereto can be installed and arranged in a direction perpendicular to the axis of the intermediate cylinder 9, so that the hydraulic oil can smoothly drive the rotating member 7 to rotate for subsequent power generation.

[0077] In some embodiments, Figure 1 As shown, the piston rod 2 includes a rod body 201 and a piston block 202 connected to the end of the rod body 201 . The piston block 202 is provided with a first one-way valve 2021 . The first one-way valve 2021 is suitable for guiding hydraulic oil from the rodless chamber 4 to the rod chamber 3 .

[0078] In the above embodiment, a first one-way valve 2021 is arranged on the piston block 202 of the piston rod 2 so that the first one-way valve 2021 guides the hydraulic oil from the rodless chamber 4 to the rod chamber 3 when the piston rod 2 of the shock absorber is in operation, and prevents the hydraulic oil from flowing back from the rod chamber 3 to the rodless chamber 4.

[0079] Specifically, Figure 1 As shown, the piston block 202 of the piston rod 2 is circumferentially interference fit with the inner wall of the inner cylinder body 1 , and the first one-way valve 2021 is directly arranged in the piston block 202 .

[0080] In some embodiments, Figure 1 As shown, a second one-way valve 102 is provided at the bottom of the inner cylinder body 1 , and the second one-way valve 102 is suitable for guiding the hydraulic oil from the return oil chamber 6 to the rodless chamber 4 .

[0081] In the above embodiment, a second one-way valve 102 is provided at the bottom of the inner cylinder body 1 so that the second one-way valve 102 can guide the hydraulic oil from the return oil chamber 6 back to the rodless chamber 4 when the piston rod 2 of the shock absorber is in operation, and prevent the hydraulic oil from flowing back from the rodless chamber 4 to the return oil chamber 6.

[0082] Specifically, Figure 1As shown, in this embodiment, the inner cylinder body 1 and the outer cylinder body 5 are cylindrical as a whole and are open at the top and bottom. The bottom cover 13 with two layers of cover plates is used to seal the open structures of the inner cylinder body 1 and the outer cylinder body 5 respectively, so the second one-way valve 102 can be set on the cover plate of the bottom cover 13 sealed with the inner cylinder body 1. As an alternative embodiment, when the inner cylinder body 1 and the outer cylinder body 5 are set as a structure with a closed bottom and an open top, the second one-way valve 102 can be directly set at the bottom plate position of the inner cylinder body 1.

[0083] In this embodiment, a first one-way valve 2021 is provided to guide the hydraulic oil to flow one-way from the rodless chamber 4 to the rod chamber 3, and a second one-way valve 102 is provided to guide the hydraulic oil to flow one-way from the return oil chamber 6 to the rodless chamber 4, so that the hydraulic oil circulates one-way in the flow path of the rodless chamber 4-rod chamber 3-oil passage 10-return oil chamber 6-rodless chamber 4, so that the piston rod 2 of the shock absorber can drive the rotating part 7 to rotate one-way during both the forward operation and the return operation, so as to improve the utilization efficiency of power generation.

[0084] In some embodiments, Figure 1 , Figure 2 As shown, the power generation mechanism 8 includes: a rotating shaft 801 , a rotor 802 and a stator 803 .

[0085] The rotating shaft 801 is connected to the rotating member 7 and is suitable for rotating with the rotation of the rotating member 7; the rotor 802 is connected to the rotating shaft 801 and is suitable for generating a magnetic field; the stator 803 is fixedly arranged on the outer peripheral side of the rotor 802 and is suitable for generating an induced electromotive force to generate electricity as the rotor 802 rotates.

[0086] In the above embodiment, the rotating shaft 801 connected to the rotating member 7 is driven by the rotating member 7 to rotate, and drives the rotor 802 to rotate, so that the magnetic field of the rotor 802 generates rotating magnetic flux lines, and generates induced electromotive force in the stator 803 according to the law of electromagnetic induction to generate electricity, thereby converting mechanical energy into electrical energy.

[0087] Specifically, Figure 1 , Figure 2 As shown, the power generation mechanism 8 is configured as a DC generator. The rotor 802 includes a rotor core 8021 disposed on the rotating shaft 801 and a permanent magnet 8022 disposed outside the rotor core 8021 , and the stator 803 includes a stator core 8031 ​​and a stator winding 8032 disposed inside the stator core 8031 ​​.

[0088] Furthermore, if Figure 1 , Figure 2 As shown, the conductor 16 is electrically connected to the stator 803 to output the electrical energy output by the generator 8 .

[0089] In some embodiments, Figure 1 , Figure 2 As shown, the power generation mechanism 8 further includes a shell 804 , a stator 803 is fixedly provided on the inner wall of the shell 804 , and the shell 804 is detachably connected to the outer cylinder body 5 .

[0090] In the above embodiment, the housing 804 provides an installation position for the stator 803 of the power generation mechanism 8; the housing 804 is detachably connected to the outer cylinder 5, so that the power generation mechanism 8 is assembled to the main structure of the shock absorber.

[0091] Specifically, Figure 1 , Figure 2 As shown, the housing 804 and the outer cylinder 5 can be connected by threaded connection, snap-fit ​​connection, etc. In this embodiment, the housing 804 is threadedly connected to the outer cylinder 5.

[0092] In some embodiments, the rotating member 7 is configured as a turbine.

[0093] A power generation method of a shock absorber provided in this embodiment is as follows:

[0094] When the piston rod 2 of the shock absorber is working, Figure 3 As shown, the piston rod 2 moves downward in the inner cylinder body 1 for a compression stroke, the volume of the rodless chamber 4 decreases and the volume of the rod chamber 3 increases. At this time, the hydraulic oil flows from the rodless chamber 4 to the rod chamber 3 through the first one-way valve 2021, and then flows from the rod chamber 3 to the oil passage 10 through the first through hole 101. When it flows to the exit position of the oil passage 10, that is, the second through hole 901, the hydraulic oil drives the rotating member 7, that is, the turbine, to rotate, so that the rotating member 7 drives the rotor 802 of the power generation mechanism 8 to rotate, and the stator 803 of the power generation mechanism 8 generates an induced electromotive force with the rotation of the rotor 802 to generate electricity; the hydraulic oil flowing through the rotating member 7 enters the return oil chamber 6.

[0095] When the piston rod 2 of the shock absorber is in return operation, Figure 4 As shown, the piston rod 2 moves upward in the inner cylinder body 1 for a restoring stroke, the volume of the rodless chamber 4 increases and the volume of the rod chamber 3 decreases, and the hydraulic oil now flows from the rod chamber 3 through the first through hole 101 to the oil passage 10. When it flows to the outlet position of the oil passage 10, i.e., the second through hole 901, the hydraulic oil drives the rotating member 7, i.e., the turbine, to rotate, so that the rotating member 7 drives the rotor 802 of the power generation mechanism 8 to rotate, and the stator 803 of the power generation mechanism 8 generates an induced electromotive force as the rotor 802 rotates to generate electricity; the hydraulic oil flowing through the rotating member 7 enters the return oil chamber 6, and flows back to the rodless chamber 4 through the second one-way valve 102.

[0096] According to an embodiment of the present invention, on the other hand, a vehicle is further provided, comprising a vehicle body, a wheel axle and a shock absorber according to any of the above embodiments, wherein a plurality of shock absorbers are provided and are respectively arranged between the vehicle body and the wheel axle, wherein one of the piston rod 2 or the outer cylinder body 5 of the shock absorber is hinged to one of the vehicle body and the wheel axle, and the other of the piston rod 2 or the outer cylinder body 5 is hinged to the other of the vehicle body and the wheel axle.

[0097] In the above embodiment, the plurality of shock absorbers disposed between the vehicle body and the wheel axle can absorb the vibration energy transmitted from the wheel axle to the vehicle body, and the shock absorbers can convert the mechanical energy of the vibration into electrical energy for power generation.

[0098] Specifically, Figure 1 As shown, the first mounting position 2011 on the rod body 201 in the piston rod 2 is hinged to one of the vehicle body and the wheel axle, and the second mounting position 1301 on the bottom cover 13 installed at the bottom of the outer cylinder body 5 is hinged to the other of the vehicle body and the wheel axle, thereby installing the shock absorber to the vehicle.

[0099] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A shock absorber, characterized in that: include: An inner cylinder body (1) is provided with a piston rod (2) inside, the inner cylinder body (1) comprises a rod chamber (3) and a rodless chamber (4), and hydraulic oil is suitable for flowing from the rodless chamber (4) to the rod chamber (3); An outer cylinder body (5) is sealably arranged on the outer side of the inner cylinder body (1), an oil return chamber (6) is formed between the outer cylinder body (5) and the inner cylinder body (1), the oil return chamber (6) is communicated with the rod chamber (3) and is suitable for circulating hydraulic oil, and the hydraulic oil is suitable for flowing from the oil return chamber (6) to the rodless chamber (4); A rotating member (7) is arranged in the oil return chamber (6), and when the hydraulic oil flows from the oil return chamber (6) to the rodless chamber (4), the rotating member (7) is adapted to rotate along with the flow of the hydraulic oil; The power generation mechanism (8) is transmission-connected to the rotating member (7) and is suitable for converting the mechanical energy generated by the rotation of the rotating member (7) into electrical energy.

2. The shock absorber according to claim 1, characterized in that: It also includes an intermediate cylinder body (9) located between the inner cylinder body (1) and the outer cylinder body (5), the intermediate cylinder body (9) being sealed and arranged on the outer side of the inner cylinder body (1), an oil passage (10) being formed between the intermediate cylinder body (9) and the inner cylinder body (1), the oil passage (10) being connected between the rod chamber (3) and the oil return chamber (6), and the rotating member (7) being provided at the connection point between the oil passage (10) and the oil return chamber (6); The hydraulic oil is suitable for flowing from the rod chamber (3) to the oil passage (10), and after driving the rotating member (7) to rotate, flows from the oil passage (10) to the oil return chamber (6).

3. The shock absorber according to claim 2, characterized in that: The side wall of the inner cylinder body (1) is provided with a first through hole (101), and the first through hole (101) is located inside the middle cylinder body (9) to connect the rod chamber (3) and the oil passage (10).

4. The vibration absorber according to claim 2, characterized in that: A second through hole (901) is provided on the side wall of the intermediate cylinder body (9), and the second through hole (901) is located inside the outer cylinder body (5) to connect the oil passage (10) and the oil return chamber (6); The second through hole (901) is connected to a transition ring (11), which is arranged in a direction perpendicular to the axis of the intermediate cylinder body (9) and is provided with the rotating member (7).

5. The vibration absorber according to claim 1, characterized in that: The piston rod (2) comprises a rod body (201) and a piston block (202) connected to the end of the rod body (201); a first one-way valve (2021) is provided on the piston block (202); the first one-way valve (2021) is suitable for directing hydraulic oil from the rodless chamber (4) to the rod chamber (3).

6. The shock absorber according to claim 1, characterized in that A second one-way valve (102) is provided at the bottom of the inner cylinder body (1), and the second one-way valve (102) is suitable for guiding the hydraulic oil from the oil return chamber (6) to the rodless chamber (4).

7. The vibration absorber according to any one of claims 1 to 6, characterized in that: The power generation mechanism (8) comprises: A rotating shaft (801), connected to the rotating member (7), and adapted to rotate along with the rotation of the rotating member (7); A rotor (802), connected to the rotating shaft (801) and adapted to generate a magnetic field; The stator (803) is fixedly arranged on the outer peripheral side of the rotor (802) and is suitable for generating an induced electromotive force to generate electricity as the rotor (802) rotates.

8. The shock absorber according to claim 7, characterized in that The power generation mechanism (8) further comprises a shell (804), the stator (803) being fixedly arranged on the inner wall of the shell (804), and the shell (804) is detachably connected to the outer cylinder (5).

9. The vibration absorber according to claim 1, characterized in that: The rotating member (7) is configured as a turbine.

10. A vehicle, characterized in that: It comprises a vehicle body, a wheel axle and the shock absorber described in any one of claims 1 to 9, wherein a plurality of shock absorbers are provided and are respectively arranged between the vehicle body and the wheel axle, one of the piston rod or the outer cylinder body of the shock absorber is hinged to one of the vehicle body and the wheel axle, and the other of the piston rod or the outer cylinder body is hinged to the other of the vehicle body and the wheel axle.

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