A vibration reduction energy recovery system and vehicle

Abstract

The present invention discloses a shock-absorbing energy recovery system and a vehicle. The shock-absorbing energy recovery system includes: a hydraulic cylinder having a first chamber; a piston assembly including a piston rod, a second chamber is formed between the end face of the first end of the piston rod and the inner wall of the hydraulic cylinder, the second chamber is connected to the first chamber, and the sliding of the piston assembly can drive the volume of the second chamber to change; a third chamber is formed between the outer shell and the outer peripheral wall of the hydraulic cylinder, and the third chamber is filled with a heat-conducting medium; a peripheral assembly has a circulating flow channel, the starting end of the circulating flow channel is connected to the third chamber, the tail end of the circulating flow channel is provided with a first one-way valve, and the middle part of the circulating flow channel is provided with a power generation structure, and the power generation structure is electrically connected to a storage battery; the medium in the circulating flow channel flows unidirectionally from the starting end to the tail end, and can drive the power generation structure to generate electricity. According to the shock-absorbing energy recovery system and the vehicle of the present invention, the energy generated during the vibration of the shock absorber can be collected and converted into electrical energy, thereby improving energy utilization efficiency.

Description

Technical Field

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

[0002] As a key component of the vehicle suspension system, the shock absorber plays a role in shock absorption, maintaining and improving the comfort and stability of the vehicle. The commonly used vehicle hydraulic shock absorber is set between the frame and the axle. When the piston in the shock absorber moves up and down, the oil in the shock absorber cavity circulates from one cavity to another through different pores. At this time, the friction between the pore wall and the oil and the internal friction between the oil molecules form a damping force on the vibration, so that the vehicle vibration energy is converted into oil heat energy, which is then absorbed by the shock absorber and dissipated into the environment; general shock absorbers only have a shock absorption function and do not collect the energy in this vibration. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a vibration reduction energy recovery system that can collect the energy generated during the vibration of the shock absorber and convert it into electrical energy.

[0004] The present invention also provides a vehicle having the above-mentioned shock absorbing energy recovery system.

[0005] The vibration reduction energy recovery system according to the first embodiment of the present invention comprises:

[0006] A hydraulic cylinder having a first chamber;

[0007] A piston assembly, comprising a piston head and a piston rod, wherein the piston head is connected to a first end of the piston rod, and the piston head is slidably mounted on the hydraulic cylinder, and a second chamber is formed between an end surface of the piston head and an inner side wall of the hydraulic cylinder, and the sliding of the piston head relative to the hydraulic cylinder can drive a change in the volume of the second chamber; the second chamber is communicated with the first chamber;

[0008] A shell is sleeved on the outer circumference of the hydraulic cylinder, a third chamber is formed between the shell and the outer circumferential wall of the hydraulic cylinder, and the third chamber is filled with a heat-conducting medium;

[0009] The peripheral component has a circulation channel, the starting end of the circulation channel is connected to the third chamber, the tail end of the circulation channel is provided with a first one-way valve, the middle part of the circulation channel is provided with a power generation structure, and the power generation structure is electrically connected to the storage battery; the medium in the circulation channel flows unidirectionally from the starting end to the tail end, which can drive the power generation structure to generate electricity.

[0010] The vibration reduction energy recovery system according to the embodiment of the present invention has at least the following beneficial effects:

[0011] By arranging a third chamber on the periphery of the hydraulic cylinder, the third chamber contains a heat-conducting medium, and the third chamber is connected to the circulating flow channel of the peripheral component. The heat-conducting medium in the third chamber will flow in the circulating flow channel after absorbing heat; a power generation structure is arranged in the circulating flow channel, and the flow of the heat-conducting medium in the circulating flow channel will drive the power generation structure to generate electricity and then store it in the storage battery; the shock-absorbing energy recovery system of this embodiment utilizes the heat of the existing shock absorber to generate electricity, thereby reducing the energy loss of the vehicle; the outer shell and the peripheral components utilize thermal energy to generate electricity, which is convenient for improvement on the basis of the existing technology, can effectively reduce the production cost, and is convenient for large-scale promotion.

[0012] According to some embodiments of the present invention, a narrow channel section is provided in the middle of the circulation channel, and the power generation structure is installed in the narrow channel section.

[0013] According to some embodiments of the present invention, the vibration damping energy recovery system further includes a pressurizing assembly, wherein the pressurizing assembly is connected to the piston assembly, and movement of the piston assembly relative to the hydraulic cylinder can drive the pressurizing assembly to compress the heat transfer medium.

[0014] According to some embodiments of the present invention, the pressurizing assembly includes a cylinder body and a pressurizing piston, a first end of the pressurizing piston is slidably mounted on the cylinder body, and a second end of the pressurizing piston is connected to a second end of the piston rod;

[0015] A fourth chamber is formed between the first end of the pressurizing piston and the inner side wall of the cylinder body, an air inlet is provided in the middle of the fourth chamber, and an exhaust port is provided at the end thereof, and both the air inlet and the exhaust port are communicated with the circulation channel;

[0016] The sliding of the piston assembly relative to the hydraulic cylinder can drive the pressurizing piston to slide synchronously relative to the cylinder body, thereby compressing the heat-conducting medium in the fourth chamber.

[0017] According to some embodiments of the present invention, the circulation channel is divided into a high-pressure section and a low-pressure section, the low-pressure section is connected to the air inlet, and the high-pressure section is connected to the exhaust port.

[0018] According to some embodiments of the present invention, the high-pressure section is provided with a pressure detection device, and the pressure detection device is used to detect the pressure in the high-pressure section; a constant pressure valve is provided between the exhaust port and the high-pressure section, and the constant pressure valve is preset with a threshold pressure;

[0019] If the pressure value in the high-pressure section is less than the threshold pressure, the low-pressure section is in one-way communication with the air inlet; when the pressure in the fourth chamber exceeds the threshold pressure, the exhaust port is in one-way communication with the high-pressure section;

[0020] If the pressure value in the high-pressure section is not less than the threshold pressure, the low-pressure section is bidirectionally connected to the air inlet, and the exhaust port is disconnected from the high-pressure section.

[0021] According to some embodiments of the present invention, a connecting pipe and a bypass pipe are provided between the air inlet and the low-pressure section;

[0022] When the air inlet is connected to the low-pressure section through the connecting pipe, the low-pressure section is connected to the air inlet in one direction; when the air inlet is connected to the low-pressure section through the bypass pipe, the low-pressure section is connected to the air inlet in two directions.

[0023] According to some embodiments of the present invention, a third one-way valve is further provided between the exhaust port and the high-pressure section; along the direction from the exhaust port to the high-pressure section, the third one-way valve is arranged behind the constant pressure valve.

[0024] According to some embodiments of the present invention, the high-pressure section is provided with a pressure detection device, the pressure detection device is used to detect the pressure in the high-pressure section, and the pressure detection device is preset with an alarm pressure; the low-pressure section is provided with a temperature detection device, and the temperature detection device is preset with an alarm temperature;

[0025] The outer periphery of the low-pressure section is coated with a cooling device;

[0026] When the pressure value in the high-pressure section exceeds the alarm pressure, or the temperature value in the low-pressure section exceeds the alarm temperature, the cooling device cools the low-pressure section.

[0027] The vehicle according to the second embodiment of the present invention includes the above-mentioned vibration damping energy recovery system; since the vehicle includes the above-mentioned vibration damping energy recovery system, it at least has all the beneficial effects of the above-mentioned vibration damping energy recovery system.

[0028] 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

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0030] Figure 1 A schematic structural diagram of a vibration reduction energy recovery system according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0032] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0033] Figure Number:

[0034] Hydraulic cylinder 100, first chamber 110, second chamber 120;

[0035] Piston assembly 200, piston head 210, piston rod 220, spring 230;

[0036] Housing 300, third chamber 310;

[0037] Peripheral assembly 400, circulation channel 410, high pressure section 411, low pressure section 412, narrow channel section 413, power generation structure 414, first one-way valve 420, pressure detection device 430, temperature detection device 440, cooling device 450;

[0038] Pressurizing assembly 500 , cylinder body 510 , pressurizing piston 520 , fourth chamber 530 , air inlet 531 , air outlet 532 , connecting pipe 540 , second one-way valve 541 , bypass pipe 550 , stop valve 551 , constant pressure valve 560 , and third one-way valve 570 . DETAILED DESCRIPTION

[0039] 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., 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 should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] Reference Figures 1 to 3The shock absorbing energy recovery system of the first embodiment of the present invention comprises a hydraulic cylinder 100 and a piston assembly 200. The hydraulic cylinder 100 has a first chamber 110. The piston assembly 200 comprises a piston head 210 and a piston rod 220. The piston head 210 is connected to a first end of the piston rod 220. The piston head 210 is slidably mounted on the hydraulic cylinder 100. A second chamber 120 is formed between the end surface of the piston head 210 and the inner side wall of the hydraulic cylinder 100. The sliding of the piston head 210 relative to the hydraulic cylinder 100 can drive the volume of the second chamber 120 to change. Changes; the second chamber 120 is connected to the first chamber 110, and the second chamber 120 is filled with hydraulic oil, while the first chamber 110 is not completely filled with hydraulic oil. Therefore, the change in the volume of the second chamber 120 will cause the hydraulic oil to flow between the first chamber 110 and the second chamber 120. When the volume of the second chamber 120 decreases, the hydraulic oil in the second chamber 120 will partially flow into the first chamber 110. When the volume of the second chamber 120 increases, the hydraulic oil in the first chamber 110 will flow back into the second chamber 120.

[0044] It should be understood that when the hydraulic oil flows between the first chamber 110 and the second chamber 120, it must pass through valve bodies or structures such as throttle valves and one-way valves. The throttle valves, one-way valves, etc. are not shown in the accompanying drawings. Their specific settings can refer to existing vehicle shock absorbers or shock absorber-related patents and are not specifically limited here.

[0045] Reference Figure 1 As shown, the outer periphery of the piston rod 220 is also sleeved with a spring 230, and the two ends of the spring 230 are respectively against the hydraulic cylinder 100 and the second end of the piston rod 220; the second end of the piston rod 220 and the end of the hydraulic cylinder 100 away from the piston assembly 200 are respectively connected to the vehicle body and the axle, which are used to reduce the shock of the vehicle tires and provide a reset force to the piston assembly 200; the spring 230 is a conventional structure in the existing shock absorber. When the vehicle passes through a bumpy section, the spring 230 will be compressed or stretched, and the piston assembly 200 will also move relative to the hydraulic cylinder 100; then the spring 230 pushes the piston assembly 200 to reset. When the piston assembly 200 moves relative to the hydraulic cylinder 100, the hydraulic oil in the hydraulic cylinder 100 will heat up. At present, the heat of the hydraulic oil will be dissipated outward through the hydraulic cylinder 100 and is not effectively utilized. The shock absorption energy storage system of this embodiment uses this part of the dissipated energy to generate electricity, which effectively improves the energy utilization rate.

[0046] In the embodiment of the present invention, a housing 300 is provided around the outer circumference of the hydraulic cylinder 100, and a third chamber 310 is formed between the housing 300 and the outer circumferential wall of the hydraulic cylinder 100. The third chamber 310 is filled with a heat-conducting medium, and the heat-conducting medium can transfer heat with the hydraulic oil in the hydraulic cylinder 100. In order to facilitate the transfer of heat, the hydraulic cylinder 100 is preferably made of a material with good heat conductivity, such as a metal material; the heat-conducting medium can be a medium such as a refrigerant, and the housing 300 is preferably a material with good heat storage capacity, such as a polymer material.

[0047] The shock absorption energy storage system of the embodiment of the present invention also includes an external component 400, which has a circulation channel 410. The starting end of the circulation channel 410 is connected to the third chamber 310, and the tail end of the circulation channel 410 is provided with a first one-way valve 420. The middle part of the circulation channel 410 is provided with a power generation structure 414, and the power generation structure 414 is electrically connected to the storage battery; the medium in the circulation channel 410 flows unidirectionally from the starting end to the tail end, and when it flows through the power generation structure 414 in the middle, it will drive the power generation structure 414 to generate electricity. For details, refer to Figure 1 , Figure 3 As shown, the circulation channel 410 is an annular flow channel, which theoretically does not have a starting end and a tail end. However, for ease of understanding, in this embodiment, according to the direction of the heat-conducting medium flowing in the circulation channel 410, the connection between the circulation channel 410 and the third chamber 310 is defined as the starting end, and the structure where the first one-way valve 420 is provided is set as the tail end. In fact, both the starting end and the tail end are connected to the third chamber 310, and it can be understood that the third chamber 310 is also a part of the circulation channel 410. After absorbing the heat of the hydraulic oil, the temperature of part of the heat-conducting medium at the starting end of the circulation channel 410 will rise, and then flow to the low-temperature area in the circulation channel 410. By setting a power generation structure 414 in the circulation flow, the kinetic energy of the heat-conducting medium during the flow can be fully utilized to generate electricity. The storage battery is preferably an ultra-high power battery, and the kinetic energy of the heat-conducting medium is recovered based on the charging and discharging characteristics of the ultra-high power battery.

[0048] It is conceivable that if the first one-way valve 420 is not provided, the heat-conducting medium will move disorderly after absorbing heat, resulting in the inability to utilize the energy of the heat-conducting medium; after the first one-way valve 420 is provided, the heat-conducting medium in the circulation channel 410 can be guided to flow in one direction, and at the same time, the energy loss caused by the collision of the disorderly moving heat-conducting medium can be reduced, and the flow rate of the heat-conducting medium in the circulation channel 410 can be increased, thereby increasing the power generation of the power generation structure 414. The first one-way valve 420 can be selected from a suitable valve in the prior art according to actual conditions, and is not limited here.

[0049] It should be noted that although the heat transfer medium in the circulation channel 410 will flow after absorbing the heat of the hydraulic oil in the third chamber 310, its heat also needs to be dissipated, so the length of the circulation channel 410 needs to be slightly longer to facilitate the cooling of the heat transfer medium.

[0050] In the embodiment of the present invention, a narrow channel section 413 is provided in the middle of the circulation channel 410, and the power generation structure 414 is installed in the narrow channel section 413. Figure 2 As shown, the inner diameter of the narrow channel section 413 is smaller than the inner diameter of the rest of the circulation channel 410, so the flow velocity of the heat-conducting medium will increase when passing through the narrow channel section 413, thereby improving the power generation effect; transition areas are provided at both ends of the narrow channel section 413 to reduce the turbulence and turbulence generated by the heat-conducting medium when passing through the narrow diameter section, thereby improving the flow rate of the heat-conducting medium and extending the service life of the circulation channel 410.

[0051] In the embodiment of the present invention, the vibration damping energy recovery system further includes a pressurizing assembly 500, which is connected to the piston assembly 200. The movement of the piston assembly 200 relative to the hydraulic cylinder 100 can drive the pressurizing assembly 500 to compress the heat transfer medium. Figure 1 , Figure 2 As shown, the pressurizing assembly 500 includes a cylinder body 510 and a pressurizing piston 520, wherein the first end of the pressurizing piston 520 is slidably mounted on the cylinder body 510, and the second end of the pressurizing piston 520 is connected to the second end of the piston rod 220; a fourth chamber 530 is formed between the first end of the pressurizing piston 520 and the inner side wall of the cylinder body 510, wherein an air inlet 531 is provided in the middle of the fourth chamber 530, and an exhaust port 532 is provided at the end thereof, and both the air inlet 531 and the exhaust port 532 are connected to the circulating flow channel 410; the sliding of the piston assembly 200 relative to the hydraulic cylinder 100 can drive the pressurizing piston 520 to slide synchronously relative to the cylinder body 510, thereby compressing the heat-conducting medium in the fourth chamber 530. When the vehicle passes through a bumpy road section, the spring 230 will be compressed and the piston assembly 200 will be driven to move. By connecting the pressurizing assembly 500 with the piston assembly 200, the movement of the piston assembly 200 can be used to drive the pressurizing assembly 500 to compress part of the heat-conducting medium in the circulation channel 410, thereby increasing the pressure in the circulation channel 410 and the temperature of the heat-conducting medium, thereby increasing the flow rate of the heat-conducting medium and increasing the power generation. By adding the pressurizing assembly 500, compared with only using the temperature of the hydraulic oil in the third chamber 310, the pressurizing assembly 500 also uses the elastic potential energy of the spring 230 sleeved on the outer periphery of the piston assembly 200, thereby improving the energy recovery efficiency, reducing energy loss, and increasing power generation.

[0052] In the embodiment of the present invention, the circulation channel 410 is divided into a high pressure section 411 and a low pressure section 412, the low pressure section 412 is connected to the air inlet 531, and the high pressure section 411 is connected to the exhaust port 532. Figure 1 As shown, the high-pressure section 411 is the portion from the starting end of the circulation channel 410 to the power generation structure 414, and the low-pressure section 412 is the portion from the power generation structure 414 to the tail end of the circulation channel 410. Generally speaking, the length of the low-pressure section 412 is longer than that of the high-pressure section 411. Since the heat-conducting medium in the high-pressure section 411 will transfer heat with the hydraulic oil in the cylinder liner, the heat-conducting medium in the high-pressure section 411 will evaporate and expand, resulting in a higher pressure in the high-pressure section 411 than in the low-pressure section 412. After passing through the narrow channel section 413, the pressure of the heat-conducting medium will decrease due to the expansion of the inner diameter. At the same time, the heat-conducting medium will also consume some energy to drive the power generation structure 414 to move. In addition, when the heat-conducting medium flows in the low-pressure section 412, it will dissipate heat to the outside, which will also cause a decrease in pressure. Therefore, the pressure in the low-pressure section 412 will be lower than the pressure in the high-pressure section 411. The heating component absorbs low-pressure and low-temperature heat-conducting medium from the low-pressure section 412 through the air inlet 531, and then the low-temperature and low-pressure heat-conducting medium is compressed in the fourth chamber 530 to become a high-temperature and high-pressure gas, and then discharged into the high-pressure section 411 through the exhaust port 532, which can increase the pressure difference between the high-pressure section 411 and the low-pressure section 412, thereby increasing the power generation of the power generation structure 414.

[0053] It is conceivable that the inner diameter of the high-pressure section 411 and the inner diameter of the low-pressure section 412 can be set to be the same or different. Preferably, the inner diameter of the low-pressure section 412 is larger than the inner diameter of the high-pressure section 411. This can accelerate the cooling of the heat transfer medium in the low-pressure section 412 and also increase the pressure difference between the high-pressure section 411 and the low-pressure section 412.

[0054] In the embodiment of the present invention, in order to prevent the heat-conducting medium in the fourth chamber 530 from flowing into the low-pressure section 412, a connecting pipe 540 is provided between the air inlet 531 and the low-pressure section 412, and the connecting pipe 540 is provided with a second one-way valve 541. When the second one-way valve 541 is in a fully open state, the heat-conducting medium can be limited to flow only from the low-pressure section 412 to the fourth chamber 530 in one direction, and when the second one-way valve 541 is in a fully closed state, the connection between the air inlet 531 and the low-pressure section 412 is cut off. Similarly, in order to prevent the heat-conducting medium in the high-pressure section 411 from flowing into the fourth chamber 530, a third one-way valve 570 is provided between the exhaust port 532 and the high-pressure section 411. When the third one-way valve 570 is in a fully open state, the heat-conducting medium can be limited to flow only from the fourth chamber 530 to the high-pressure section 411 in one direction, and when the second one-way valve 541 is in a fully closed state, the connection between the exhaust port 532 and the high-pressure section 411 is cut off.

[0055] It should be noted that, in the embodiment of the present invention, in order to ensure that the heat-conducting medium sent from the fourth chamber 530 into the high-pressure section 411 is a high-pressure and high-temperature heat-conducting medium, a constant pressure valve 560 is further provided between the exhaust port 532 and the high-pressure section 411, and the constant pressure valve 560 is preset with a threshold pressure; when the constant pressure valve 560 is in a fully open state, only when the pressure in the fourth chamber 530 exceeds the threshold pressure, the heat-conducting medium in the fourth chamber 530 can flow into the high-pressure section 411 through the constant pressure valve 560 and the third one-way valve 570; when the constant pressure valve 560 is in a fully closed state, the constant pressure valve 560 can also cut off the connection between the exhaust port 532 and the high-pressure section 411.

[0056] Furthermore, the constant pressure valve 560 cannot control the direction of the medium when it is in the fully open state, that is, if there is only the constant pressure valve 560 without the third one-way valve 570, and the constant pressure valve 560 is in the fully open state, then once the pressure in the high-pressure section 411 exceeds the threshold pressure of the constant pressure valve 560, the heat-conducting medium in the high-pressure section 411 will enter the fourth chamber 530; similarly, if the pressure in the fourth chamber 530 exceeds the threshold pressure of the constant pressure valve 560, the heat-conducting medium in the fourth chamber 530 will enter the high-pressure section 411. In this embodiment, it is necessary to control that only the heat-conducting medium in the fourth chamber 530 can enter the high-pressure section 411, so the constant pressure valve 560 and the third one-way valve 570 are provided at the same time. When the third one-way valve 570 is in the fully open state, theoretically no matter how high the pressure in the high-pressure section 411 is, it cannot flow back into the fourth chamber 530. In order to better protect the constant-pressure valve 560 and the third one-way valve 570 and extend the service life of both, the third one-way valve 570 is preferably arranged behind the constant-pressure valve 560 along the direction from the exhaust port 532 to the high-pressure section 411, which can reduce the damage to the third one-way valve 570 caused by the pressure change in the high-pressure section 411.

[0057] In an embodiment of the present invention, if the pressure in the high-pressure section 411 exceeds the threshold pressure of the constant-pressure valve 560, and the vibration reduction energy recovery system of this embodiment cannot cancel the compression of the heat-conducting medium in the fourth chamber 530 by the pressurizing component 500, then even if the pressure in the fourth chamber 530 reaches the threshold pressure of the constant-pressure valve 560, the heat-conducting medium in the fourth chamber 530 still cannot enter the high-pressure section 411; therefore, when the pressure in the high-pressure section 411 exceeds the threshold pressure of the constant-pressure valve 560, it is necessary to prevent the pressurizing component 500 from continuing to compress the heat-conducting medium in the fourth chamber 530, otherwise it is easy to cause damage to the pressurizing component 500. In order to achieve the above effect, refer to Figure 1 , Figure 2As shown, the high pressure section 411 in this embodiment is provided with a pressure detection device 430, which is used to detect the pressure in the high pressure section 411; a bypass pipe 550 is also provided between the air inlet 531 and the low pressure section 412, and the bypass pipe 550 is provided with a stop valve 551; the bypass pipe 550 is arranged in parallel with the connecting pipe 540, and when the stop valve 551 is fully opened, bidirectional flow occurs between the air inlet 531 and the low pressure section 412, and when the stop valve 551 is fully closed, the bypass pipe 550 is cut off. The control method is as follows:

[0058] If the pressure detection device 430 detects that the pressure value in the high-pressure section 411 is less than the threshold pressure, the low-pressure section 412 is unidirectionally connected to the air inlet 531, that is, the stop valve 551 is in a fully closed state, and the second one-way valve 541 is in a fully open state; when the pressure in the fourth chamber 530 exceeds the threshold pressure, the exhaust port 532 is unidirectionally connected to the high-pressure section 411, that is, the constant pressure valve 560 is in a fully open state, and the third one-way valve 570 is in a fully open state; at this time, the shock absorbing energy storage system of this embodiment allows the heat-conducting medium to flow from the low-pressure section 412 into the fourth chamber 530, and then after the pressure in the fourth chamber 530 reaches the threshold pressure, the heat-conducting medium in the fourth chamber 530 flows into the high-pressure section 411.

[0059] If the pressure value in the high-pressure section 411 is not less than the threshold pressure, the low-pressure section 412 is bidirectionally connected to the air inlet 531, that is, the stop valve 551 is in a fully open state, and the second one-way valve 541 is in a fully open state or a fully closed state; the exhaust port 532 is disconnected from the high-pressure section 411, that is, the constant pressure valve 560 and / or the third one-way valve 570 are in a fully closed state; at this time, the shock absorbing energy storage system of this embodiment has bidirectional flow between the low-pressure section 412 and the fourth chamber 530. Therefore, when the pressure-increasing component 500 is actuated to cause the volume of the fourth chamber 530 to change, the heat-conducting medium will flow back and forth between the low-pressure section 412 and the fourth chamber 530, thereby making it impossible for the pressure-increasing component 500 to pressurize the heat-conducting medium in the fourth chamber 530, thereby ensuring that the pressure-increasing component 500 will not be damaged by high pressure.

[0060] In an embodiment of the present invention, in order to ensure the safe use of the shock absorbing energy recovery system of this embodiment, it is necessary to avoid the temperature of the heat-conducting medium being too high to affect the heat conduction effect on the hydraulic oil; for example, when the ambient temperature is too high, the heat dissipation effect of the heat-conducting medium in the low-pressure section 412 may deteriorate, thereby affecting the heat transfer between the heat-conducting medium and the hydraulic oil, thereby affecting the service life of the shock absorbing energy recovery system; for example, when the road section passed by the vehicle is too bumpy, the temperature of the heat-conducting medium may be too high, and the heat dissipation in the low-pressure section 412 may be insufficient, thereby affecting the heat transfer between the heat-conducting medium and the hydraulic oil, thereby affecting the service life of the shock absorbing energy recovery system. In order to avoid the above problems, the low-pressure section 412 is provided with a temperature detection device 440, and the temperature detection device 440 is preset with an alarm temperature; the outer periphery of the low-pressure section 412 is coated with a cooling device 450, and when the temperature value in the low-pressure section 412 exceeds the alarm temperature, the cooling device 450 cools the low-pressure section 412. Specifically, refer to Figure 1 As shown, the cooling device 450 can be a structure such as heat sink fins and cooling water. Taking the heat sink fins as an example, when the temperature in the low-pressure section 412 exceeds the alarm temperature, the heat sink fins are opened to increase the heat dissipation to the low-pressure section 412; taking the cooling water as an example, a cooling water pipe is provided on the outer periphery of some sections of the low-pressure section 412. When the temperature in the low-pressure section 412 exceeds the alarm temperature, the system injects cooling water into the cooling water pipe to cool down the low-pressure section 412.

[0061] Furthermore, the pressure detection device 430 is preset with an alarm pressure, and when the pressure value in the high-pressure section 411 exceeds the alarm pressure, the cooling device 450 will also cool the low-pressure section 412. The double insurance of the alarm pressure and the alarm temperature can effectively avoid the situation where one of the pressure detection device 430 and the temperature detection device 440 fails, thereby improving the safety of the equipment.

[0062] It should be understood that, in actual use, the problem of excessively high temperature of the heat transfer medium can be effectively avoided by reasonably setting the length of the low-pressure section 412 , and only in some special scenarios is it necessary to separately set the temperature detection device 440 and the cooling device 450 .

[0063] The shock absorbing energy recovery system of the embodiment of the present invention is provided with a third chamber 310 on the periphery of the hydraulic cylinder 100. The third chamber 310 contains a heat-conducting medium, and the third chamber 310 is connected to the circulation channel 410 of the peripheral component 400. The heat-conducting medium in the third chamber 310 will flow in the circulation channel 410 after absorbing heat; a power generation structure 414 is provided in the circulation channel 410, and the heat-conducting medium flowing in the circulation channel 410 will drive the power generation structure 414 to generate electricity and then store it in the storage battery; the shock absorbing energy recovery system of this embodiment utilizes the heat of the existing shock absorber to generate electricity, thereby reducing the energy loss of the vehicle; the housing 300 and the peripheral component 400 utilize thermal energy to generate electricity, which is convenient for improvement on the basis of the existing technology, can effectively reduce the production cost, and is convenient for large-scale promotion.

[0064] The vehicle of the second embodiment of the present invention includes the above-mentioned vibration-absorbing energy recovery system. Since the vehicle includes the above-mentioned vibration-absorbing energy recovery system, it at least has all the beneficial effects of the above-mentioned vibration-absorbing energy recovery system, which will not be elaborated here.

[0065] 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 different embodiments or examples described in this specification.

[0066] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A vibration damping energy recovery system, characterized in that: include: A hydraulic cylinder having a first chamber; A piston assembly, comprising a piston head and a piston rod, wherein the piston head is connected to a first end of the piston rod, and the piston head is slidably mounted on the hydraulic cylinder, and a second chamber is formed between an end surface of the piston head and an inner side wall of the hydraulic cylinder, and the sliding of the piston head relative to the hydraulic cylinder can drive a change in the volume of the second chamber; the second chamber is communicated with the first chamber; A shell is sleeved on the outer circumference of the hydraulic cylinder, a third chamber is formed between the shell and the outer circumferential wall of the hydraulic cylinder, and the third chamber is filled with a heat-conducting medium; The peripheral component has a circulation channel, the starting end of the circulation channel is connected to the third chamber, the tail end of the circulation channel is provided with a first one-way valve, the middle part of the circulation channel is provided with a power generation structure, and the power generation structure is electrically connected to the storage battery; the medium in the circulation channel flows unidirectionally from the starting end to the tail end, which can drive the power generation structure to generate electricity; A pressurizing assembly is connected to the piston assembly, and the movement of the piston assembly relative to the hydraulic cylinder can drive the pressurizing assembly to compress the heat-conducting medium; the pressurizing assembly includes a cylinder body and a pressurizing piston, the first end of the pressurizing piston is slidably installed on the cylinder body, and the second end of the pressurizing piston is connected to the second end of the piston rod; a fourth chamber is formed between the first end of the pressurizing piston and the inner side wall of the cylinder body, an air inlet is provided in the middle of the fourth chamber, and an exhaust port is provided at the end, and the air inlet and the exhaust port are both connected to the circulating flow channel; the sliding of the piston assembly relative to the hydraulic cylinder can drive the pressurizing piston to slide synchronously relative to the cylinder body, thereby compressing the heat-conducting medium in the fourth chamber.

2. The vibration damping energy recovery system according to claim 1, characterized in that: A narrow channel section is provided in the middle of the circulation channel, and the power generation structure is installed in the narrow channel section.

3. The vibration damping energy recovery system according to claim 1, characterized in that: The circulation channel is divided into a high-pressure section and a low-pressure section, the low-pressure section is connected to the air inlet, and the high-pressure section is connected to the exhaust port.

4. The vibration damping energy recovery system according to claim 3, characterized in that: The high-pressure section is provided with a pressure detection device, and the pressure detection device is used to detect the pressure in the high-pressure section; a constant pressure valve is provided between the exhaust port and the high-pressure section, and the constant pressure valve is preset with a threshold pressure; If the pressure value in the high-pressure section is less than the threshold pressure, the low-pressure section is in one-way communication with the air inlet; when the pressure in the fourth chamber exceeds the threshold pressure, the exhaust port is in one-way communication with the high-pressure section; If the pressure value in the high-pressure section is not less than the threshold pressure, the low-pressure section is bidirectionally connected to the air inlet, and the exhaust port is disconnected from the high-pressure section.

5. The vibration damping energy recovery system according to claim 4, characterized in that: A connecting pipe and a bypass pipe are provided between the air inlet and the low-pressure section; When the air inlet is connected to the low-pressure section through the connecting pipe, the low-pressure section is connected to the air inlet in one direction; when the air inlet is connected to the low-pressure section through the bypass pipe, the low-pressure section is connected to the air inlet in two directions.

6. The vibration damping energy recovery system according to claim 4, characterized in that: A third one-way valve is also provided between the exhaust port and the high-pressure section; along the direction from the exhaust port to the high-pressure section, the third one-way valve is arranged behind the constant pressure valve.

7. The vibration damping energy recovery system according to claim 3, characterized in that: The high-pressure section is provided with a pressure detection device, which is used to detect the pressure in the high-pressure section, and the pressure detection device is preset with an alarm pressure; the low-pressure section is provided with a temperature detection device, and the temperature detection device is preset with an alarm temperature; The outer periphery of the low-pressure section is coated with a cooling device; When the pressure value in the high-pressure section exceeds the alarm pressure, or the temperature value in the low-pressure section exceeds the alarm temperature, the cooling device cools the low-pressure section.

Images