Vibration reduction system and vehicle with same

Abstract

The invention discloses a vibration reduction system and a vehicle with the vibration reduction system. The vibration reduction system comprises a vibration reducer body and a vibration reduction device. The connecting arm is connected to the lower end of the shock absorber main body and extends downwards; the connecting support is connected with the lower end of the connecting arm, and the connecting support is suitable for being connected with a swing arm; the early warning structure is configured to send out early warning information when the acting force borne by the connecting arm is larger than or equal to a first preset value. According to the vibration reduction system, when the acting force borne by the connecting arm of the vibration reduction system is larger than or equal to the first preset value, the early warning structure can send out the early warning information, so that a user can be effectively reminded, safety accidents caused by damage of the vibration reduction system are avoided, and then safety and reliability are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vibration reduction system and a vehicle having the same. Background Art

[0002] In order to quickly attenuate the vibration of the frame and body, improve and enhance the smoothness and comfort of the vehicle during driving, a shock absorber is generally installed on the suspension system of the vehicle. The shock absorber of the vehicle can absorb the energy generated by the vibration of the vehicle to improve the driving quality. In the prior art, when the vehicle passes through potholes or steps and is subjected to a large vertical impact load, micro cracks will appear in the shock absorber. Since the shock absorber has no early warning function, the driver does not know that the shock absorber has been damaged and continues to drive the vehicle, which may cause the shock absorber to suddenly break, thereby endangering driving safety. 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 is to provide a vibration reduction system, which can issue early warning information, thereby effectively reminding the user, thereby effectively improving safety and reliability.

[0004] The present invention also provides a vehicle having the above vibration reduction system.

[0005] According to the first aspect of the present invention, the vibration reduction system includes: a vibration reduction device body; a connecting arm, which is connected to the lower end of the vibration reduction device body and extends downward; a connecting bracket, which is connected to the lower end of the connecting arm, and the connecting bracket is suitable for connecting a swing arm; and an early warning structure, which is configured to issue an early warning message when the force acting on the connecting arm is greater than or equal to a first preset value.

[0006] According to the vibration reduction system of the present invention, a vibration reduction body, a connecting arm, a connecting bracket and a warning structure are provided. The connecting arm is connected to the lower end of the vibration reduction body and extends downward, the connecting bracket is connected to the lower end of the connecting arm, and the connecting bracket is connected to the swing arm. The warning structure is configured to issue a warning message when the force applied to the connecting arm is greater than or equal to a first preset value. When the force applied to the connecting arm of the vibration reduction system is greater than or equal to the first preset value, the warning structure can issue a warning message, thereby effectively reminding the user, thereby avoiding safety accidents caused by damage to the vibration reduction system, and effectively improving safety and reliability.

[0007] In some embodiments, the warning structure is connected between the connecting bracket and the lower end of the shock absorber body, the structural strength of the warning structure is less than the structural strength of the connecting arm, and the warning structure is configured as follows: when the force applied to the connecting arm is greater than or equal to the first preset value, at least part of the warning structure is destroyed, and the warning information includes the sound emitted when the warning structure is destroyed.

[0008] In some embodiments, the warning structure extends up and down in a cylindrical shape, the warning structure is sleeved on the outside of the connecting arm, and is spaced apart from the connecting arm in the radial direction of the warning structure.

[0009] In some embodiments, the warning structure includes one or a plurality of warning tubes arranged at intervals inwardly and outwardly along the radial direction of the warning structure, and each of the warning tubes is connected between the connecting bracket and the shock absorber body.

[0010] In some embodiments, in the radial direction from the outside to the inside of the warning structure, the structural strength of the multiple warning tubes gradually increases, wherein N preset values ​​are set, and N is greater than or equal to 2, the N preset values ​​increase in sequence and correspond one-to-one with the multiple warning tubes along the radial direction from the outside to the inside of the warning structure, the smallest of the multiple preset values ​​is the first preset value, when the force applied to the connecting arm is greater than or equal to the i-th preset value, i≤N, the warning tube corresponding to the i-th preset value and all the warning tubes located radially outside the warning tube corresponding to the i-th preset value are destroyed.

[0011] In some embodiments, a structural weak area is provided on the warning tube; and / or the warning tube is made of a brittle material.

[0012] In some embodiments, the vibration reduction system further includes: a limit member, which is disposed on the outer surface of the lower end of the vibration reducer body, and the upper end of the warning tube abuts against the limit member in the upper and lower directions.

[0013] In some embodiments, the shock absorber body includes a shock absorber cylinder, the limiting member extends in a ring shape along the circumference of the shock absorber cylinder, and the limiting member is sleeved and fixed on the shock absorber cylinder.

[0014] In some embodiments, the connecting arm is a hollow cylindrical structure.

[0015] A vehicle according to a second aspect of the present invention comprises the vibration reduction system according to the first aspect of the present invention.

[0016] According to the vehicle of the second aspect of the present invention, by setting the above-mentioned first aspect of the vibration reduction system, the warning structure can send out a warning message when the force acting on the connecting arm of the vibration reduction system is greater than or equal to the first preset value, thereby being able to effectively remind the user, thereby avoiding safety accidents caused by damage to the vibration reduction system, thereby effectively improving safety and reliability.

[0017] 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

[0018] Figure 1 is a schematic diagram of a vibration reduction system according to an embodiment of the present invention from an angle;

[0019] Figure 2 is a cross-sectional view of a vibration reduction system according to an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of an early warning structure according to Embodiment 1 of the present invention;

[0021] Figure 4 is a schematic diagram of an early warning structure according to Embodiment 2 of the present invention;

[0022] Figure 5 is a schematic diagram of the load-deformation relationship when the early warning structure and the connecting arm are subjected to force according to an embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of a suspension according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 100. Vibration reduction system;

[0026] 10. shock absorber body; 11. upper connecting assembly; 12. coil spring; 13. buffer block; 14. spring plate; 15. dust cover; 16. damper; 161. piston rod; 162. shock absorber cylinder;

[0027] 20. Connecting arm;

[0028] 30. Connecting bracket; 31. First connecting plate; 32. Second connecting plate; 320. Connecting hole;

[0029] 40, early warning structure; 41, early warning cylinder; 410, structural weak area; 41a, first early warning cylinder; 41b, second early warning cylinder;

[0030] 50. a stopper; 51. abutting portion;

[0031] 600, suspension;

[0032] 60, swing arm; 60a, upper swing arm; 60b, lower swing arm;

[0033] 70. Subframe;

[0034] 80. Wheel. DETAILED DESCRIPTION

[0035] 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.

[0036] Reference below Figure 1-Figure 6 A vibration reduction system 100 according to an embodiment of a first aspect of the present invention is described.

[0037] like Figure 1-Figure 6 As shown, the vibration reduction system 100 according to the first embodiment of the present invention includes: a vibration reduction device body 10 , a connecting arm 20 , a connecting bracket 30 and a warning structure 40 .

[0038] The connecting arm 20 is connected to the lower end of the shock absorber body 10 and extends downward; the connecting bracket 30 is connected to the lower end of the connecting arm 20, and the connecting bracket 30 is suitable for connecting the swing arm 60; the warning structure 40 is configured to issue a warning message when the force acting on the connecting arm 20 is greater than or equal to a first preset value.

[0039] Among them, the warning information issued by the warning structure 40 refers to: information that can effectively remind or alert the user of the abnormality of the current vibration reduction system 100, wherein the abnormality of the vibration reduction system 100 may include different degrees of damage to the components of the vibration reduction system 100. For example, when the force applied to the connecting arm 20 is equal to the first preset value, the connecting arm 20 is slightly damaged, and the warning structure 40 issues a warning message. At this time, the vibration reduction system 100 can still continue to work, that is, the vehicle can still continue to travel; for example, when the force applied to the connecting arm 20 is greater than the first preset value and greater than the structural strength of the connecting arm 20, the connecting arm 20 is seriously damaged, and the warning structure 40 issues a warning message. At this time, the vibration reduction system 100 cannot continue to work, that is, the vehicle cannot continue to travel, and the vibration reduction system 100 must be repaired or replaced.

[0040] The warning information may be warning information actively issued by the warning structure 40, for example, the warning structure 40 issues warning information through sensors, alarms or wireless transmission, etc. The warning information may also be warning information issued passively, for example, the warning structure 40 issues warning information through physical changes such as structural damage, color changes or mechanical signals of the warning structure 40.

[0041] In a specific example, for example Figure 1 As shown, the shock absorber body 10 includes an upper connecting component 11, a coil spring 12, a buffer block 13, a spring disk 14, a dust cover 15 and a damper 16. The damper 16 includes a piston rod 161. The shock absorber body 10 can absorb the energy generated by external vibration or impact through the deformation of the coil spring 12 and the damping force generated by the damper 16.

[0042] For example Figure 2 and Figure 3 As shown, the connecting arm 20 extends in the up-down direction, and the upper end of the connecting arm 20 is connected to the lower end of the shock absorber body 10, that is, the upper end of the connecting arm 20 is connected to the lower end of the damper 16, and further, the upper end of the connecting arm 20 and the lower end of the damper 16 can be connected by welding. The lower end of the connecting arm 20 is fixedly connected to the connecting bracket 30, and further, the lower end of the connecting arm 20 and the connecting bracket 30 can be connected by welding. For example Figure 6 As shown, a connecting piece is further provided in the vibration reduction system 100 , and the connecting bracket 30 can be fixedly connected to the swing arm 60 through the connecting piece, so that the vibration reduction system 100 can be fixedly connected to the swing arm 60 .

[0043] For example, the early warning structure 40 may include a sensor and an alarm device. Specifically, the sensor is arranged on the connecting arm 20 to monitor the magnitude of the force applied to the connecting arm 20 in real time. The sensor and the alarm device are both electrically connected to the ECU (electronic control unit) of the vehicle. When the magnitude of the force applied to the connecting arm 20 is greater than or equal to a first preset value, the sensor can transmit a signal to the ECU of the vehicle, and the ECU of the vehicle can control the alarm device to issue an early warning message. Furthermore, the early warning message issued by the alarm device may be an alarm sound or a prompt message.

[0044] In this embodiment, when the vehicle encounters bumps or passes through a pothole-prone road, the energy generated by the vehicle vibration can be transmitted to the connecting bracket 30 through the swing arm 60, and then transmitted to the connecting arm 20 and / or the early warning structure 40 by the connecting bracket 30, and then transmitted to the shock absorber body 10 by the connecting arm 20 and / or the early warning structure 40. The shock absorber body 10 can absorb the energy generated by external vibration or impact through the deformation of the coil spring 12 and the damping force generated by the damper 16.

[0045] Among them, when the force applied to the connecting arm 20 is greater than or equal to a first preset value, the early warning structure 40 can respond quickly and issue an early warning message, so as to effectively remind the user and inform the user of possible faults or abnormal conditions. That is to say, the early warning structure 40 can give the user a prompt when the force applied to the connecting arm 20 is greater than or equal to the first preset value, thereby avoiding further damage to the vibration reduction system 100, thereby avoiding more serious consequences.

[0046] According to the vibration reduction system 100 of the embodiment of the present invention, a vibration reduction body 10, a connecting arm 20, a connecting bracket 30 and a warning structure 40 are provided. The connecting arm 20 is connected to the lower end of the vibration reduction body 10 and extends downward, the connecting bracket 30 is connected to the lower end of the connecting arm 20, and the connecting bracket 30 is connected to the swing arm 60. The warning structure 40 is configured to issue a warning message when the force applied to the connecting arm 20 is greater than or equal to a first preset value. When the force applied to the connecting arm 20 of the vibration reduction system 100 is greater than or equal to the first preset value, the warning structure 40 can issue a warning message, thereby effectively reminding the user, thereby avoiding safety accidents caused by damage to the vibration reduction system 100, thereby effectively improving safety and reliability.

[0047] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a first connecting plate 31 and a second connecting plate 32 are provided on the connecting bracket 30, the number of the first connecting plate 31 is one, the number of the second connecting plates 32 is two, the second connecting plate 32 is located at the lower side of the first connecting plate 31 and the two second connecting plates 32 are respectively arranged on the front and rear sides of the first connecting plate 31, thereby, the first connecting plate 31 and the second connecting plate 32 can form a U-shaped connecting bracket 30.

[0048] In a specific example, for example Figure 1-Figure 3 As shown, the lower end of the connecting arm 20 is welded to the upper side of the first connecting plate 31. Further, the second connecting plate 32 is provided with a connecting hole 320 that passes through the second connecting plate 32 along the thickness direction of the second connecting plate 32, and the connecting bracket 30 can be fixedly connected to the swing arm 60 using a connecting piece through the connecting hole 320.

[0049] In one embodiment of the present invention, Figure 1 As shown, the warning structure 40 is connected between the connecting bracket 30 and the lower end of the shock absorber body 10, the structural strength of the warning structure 40 is less than the structural strength of the connecting arm 20, and the warning structure 40 is configured as follows: when the force applied to the connecting arm 20 is greater than or equal to a first preset value, at least part of the warning structure 40 is destroyed, and the warning information includes the sound emitted when the warning structure 40 is destroyed.

[0050] It should be noted that since the early warning structure 40 is connected between the connecting bracket 30 and the lower end of the shock absorber body 10, when the vibration reduction system 100 is subjected to force, the early warning structure 40 and the connecting arm 20 are subjected to the same force. At this time, the early warning structure 40 and the connecting arm 20 absorb the energy generated by the impact load through deformation. Since the structural strength of the early warning structure 40 is less than the structural strength of the connecting arm 20, the deformation of the early warning structure 40 is greater than the deformation of the connecting arm 20.

[0051] For example, the warning structure 40 may be a metal plate with a preset breaking point, and the structural strength of the metal plate with the preset breaking point is less than the structural strength of the connecting arm 20, so that when the connecting arm 20 is subjected to a force greater than or equal to the first preset value and less than the structural strength of the connecting arm, the breaking point on the metal plate will break first, that is, at this time, the warning structure 40 is partially or completely destroyed, and at this time, the connecting arm 20 is slightly damaged but not completely destroyed. When the warning structure 40 is partially or completely destroyed, a destruction sound will be emitted, and the warning information may include the destruction sound of the warning structure 40, and the driver can judge the abnormal situation based on the destruction sound of the warning structure 40.

[0052] In this embodiment, the warning structure 40 is connected between the connecting bracket 30 and the lower end of the shock absorber body 10, and the structural strength of the warning structure 40 is less than the structural strength of the connecting arm 20. The warning structure 40 is configured as follows: when the force acting on the connecting arm 20 is greater than or equal to a first preset value, at least part of the warning structure 40 is destroyed, and the warning information includes the sound emitted when the warning structure 40 is destroyed, which can cause the warning structure 40 to be destroyed before the connecting arm 20 is destroyed, and cause the warning structure 40 to emit a warning information, thereby effectively realizing the warning function of the vibration reduction system 100, and then effectively improving the safety of the vibration reduction system 100.

[0053] In one embodiment of the present invention, Figure 1 As shown, the warning structure 40 extends up and down in a cylindrical shape. The warning structure 40 is sleeved on the outside of the connecting arm 20 and is spaced apart from the connecting arm 20 in the radial direction of the warning structure 40 .

[0054] For example, the warning structure 40 may be a cylindrical component, which has a simple structure and is easy to process and manufacture. Preferably, the allowable bearing capacity of the cylindrical component may be set to a fixed value according to the requirements of different vehicle models, thereby enabling the warning structure 40 to be suitable for a variety of vehicle models.

[0055] Further, the upper end of the warning structure 40 is fixedly connected to the lower end of the shock absorber body 10, and the lower end of the warning structure 40 is fixedly connected to the upper end of the connecting bracket 30. In other words, the upper end of the warning structure 40 can be welded to the lower end of the damper 16, and the lower end of the warning structure 40 can be welded to the upper side of the first connecting plate 31.

[0056] When the force applied to the connecting arm 20 exceeds the first preset value, the early warning structure 40 will be destroyed first because its structural strength is smaller than that of the connecting arm 20. Since the early warning structure 40 is cylindrical and arranged around the connecting arm 20, the early warning structure 40 can be uniformly stressed in the circumferential direction of the connecting arm 20, and the early warning structure 40 and the connecting arm 20 are spaced apart in the radial direction of the early warning structure 40, thereby providing an effective deformation space for the early warning structure 40.

[0057] In this embodiment, the warning structure 40 is set to be cylindrical and extends in the up-down direction. The warning structure 40 is sleeved on the outside of the connecting arm 20 and is arranged radially spaced apart from the connecting arm 20. This simplifies the structure of the warning structure 40 and makes the warning structure 40 a standardized component, so that the warning structure 40 can be shared by multiple vehicle models, thereby effectively improving the versatility of the warning structure 40. In addition, it can also effectively ensure that the warning structure 40 is evenly stressed when stressed and has sufficient deformation space when deformed, thereby effectively improving the reliability of the stress of the warning structure 40.

[0058] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the warning structure 40 includes one or more warning tubes 41 arranged radially inwardly and outwardly in the warning structure 40, and each warning tube 41 is connected between the connecting bracket 30 and the shock absorber body 10. For example, the warning tube 41 is extended in the up-down direction, and the cross-section of the warning tube 41 may be in the shape of a circular ring.

[0059] For example, the number of warning tubes 41 can be one; for another example, the number of warning tubes 41 can be multiple, and there can be a gap between two adjacent warning tubes 41, so that each warning tube 41 can work independently, thereby improving the sensitivity of the warning structure 40 to forces in different directions, ensuring that each warning tube 41 plays a warning function on the force transmission path. At the same time, multiple warning tubes 41 are subjected to force together, so as to effectively disperse the influence of external force, thereby reducing the risk of premature damage to a single warning tube 41.

[0060] Furthermore, the upper ends of the plurality of warning tubes 41 are fixedly connected to the lower end of the shock absorber body 10, and the lower ends of the plurality of warning tubes 41 are fixedly connected to the upper end of the connecting bracket 30. In a specific example, Figure 2 and Figure 3 As shown, there are two warning tubes 41, and the two warning tubes 41 are respectively a first warning tube 41a and a second warning tube 41b, and the first warning tube 41a is sleeved on the outside of the second warning tube 41b. For example, the upper ends of the first warning tube 41a and the second warning tube 41b can be welded to the lower end of the damper 16, and the lower ends of the first warning tube 41a and the second warning tube 41b can be welded to the upper side of the first connecting plate 31.

[0061] This embodiment can effectively simplify the structure and save costs by configuring the warning structure 40 to include a warning tube 41; by configuring the warning structure 40 to include a plurality of warning tubes 41 arranged at intervals along the radial inside and outside of the warning structure 40, each warning tube 41 is connected between the connecting bracket 30 and the shock absorber body 10, the redundancy of the warning structure 40 can be effectively improved, and the risk of premature damage to the warning structure 40 can be reduced, thereby effectively improving the reliability of the warning function of the warning structure 40.

[0062] In one embodiment of the present invention, Figure 2-Figure 5 As shown, in the direction from outside to inside along the radial direction of the early warning structure 40, the structural strength of the multiple early warning tubes 41 gradually increases, wherein N preset values ​​are set, and N is greater than or equal to 2, the N preset values ​​increase in sequence and correspond one-to-one with the multiple early warning tubes 41 from outside to inside along the radial direction of the early warning structure 40, the smallest preset value among the multiple preset values ​​is the first preset value, when the force applied to the connecting arm 20 is greater than or equal to the i-th preset value, i≤N, the early warning tube 41 corresponding to the i-th preset value, and all the early warning tubes 41 located radially outside the early warning tube 41 corresponding to the i-th preset value are destroyed. That is to say, in the radial direction along the early warning structure 40, the outermost early warning tube 41 has the smallest structural strength, and the innermost early warning tube 41 has the largest structural strength, and in the direction from outside to inside along the radial direction of the early warning structure 40, the structural strength of the multiple early warning tubes 41 gradually increases.

[0063] For example, the multiple warning tubes 41 may be made of different materials, so that the structural strengths of the multiple warning tubes 41 are different; for another example, the multiple warning tubes 41 may be made of different wall thicknesses, so that the structural strengths of the multiple warning tubes 41 are different. Figure 2 and Figure 3 As shown, the number of the warning tubes 41 is two, and in the radial direction along the warning structure 40 , the structural strength of the outer warning tube 41 is smaller than the structural strength of the inner warning tube 41 .

[0064] When the force applied to the connecting arm 20 is greater than or equal to the first preset value, the outer warning tube 41 is destroyed; when the force applied to the warning structure 40 is greater than or equal to the second preset value, both the outer warning tube 41 and the inner warning tube 41 are destroyed.

[0065] When the vibration reduction system 100 is working, the structural strength of the warning tube 41 gradually increases from the outside to the inside along the radial direction of the warning structure 40, so that the warning structure 40 can achieve graded warning. In other words, when the external force on the vibration reduction system 100 is small, only the outermost warning tube 41 will be damaged. As the external force on the vibration reduction system 100 gradually increases, the warning tube 41 will be damaged in sequence from the outside to the inside along the radial direction of the warning structure 40, thereby effectively realizing a multi-level warning safety protection mode, so that the user can clearly judge the damage of the vibration reduction system 100, and then effectively judge the state of the vehicle.

[0066] In a specific example, if Figure 5 As shown, when the vibration reduction system 100 is subjected to force, the warning structure 40 and the connecting arm 20 are subjected to the same force. At this time, the warning structure 40 and the connecting arm 20 absorb the energy generated by the impact load through deformation, and the deformation of the warning structure 40 is greater than the deformation of the connecting arm 20.

[0067] As the vertical impact load on the vibration reduction system 100 increases, the deformation of the early warning structure 40 and the connecting arm 20 gradually increases. Because the allowable load that the early warning structure 40 can withstand is small and the allowable load that the connecting arm 20 can withstand is large, when the impact load is greater than or equal to the allowable load of the early warning structure 40 and less than the allowable load of the connecting arm 20, the early warning structure 40 is damaged and a warning message is issued. At this time, the connecting arm 20 is not damaged and can continue to deform. When the impact load is greater than or equal to the allowable load of the connecting arm 20, the early warning structure 40 is completely destroyed and the connecting arm 20 is damaged and cannot be used any more.

[0068] In a specific example, the multi-level warning protection logic form of the vibration reduction system 100 is as follows: when the vehicle passes through a pit or bump with a height of 70 mm at a speed of 20 kilometers per hour, the force applied to the connecting arm 20 is less than the first preset value, indicating that the first warning tube 41a, the second warning tube 41b and the connecting arm 20 of the vehicle are deformed but not damaged; when the vehicle passes through a pit or bump with a height of 90 mm at a speed of 40 kilometers per hour, the force applied to the connecting arm 20 is greater than or equal to the first preset value and less than the second preset value, indicating that the first warning tube 41a of the vehicle is damaged, the second warning tube 41b and the connecting arm 20 are deformed, the vehicle is slightly damaged, and the vehicle can continue to travel; when the vehicle passes through a pit or bump with a height of 1 at a speed of 60 kilometers per hour, the force applied to the connecting arm 20 is greater than or equal to the first preset value and less than the second preset value, indicating that the first warning tube 41a of the vehicle is damaged, the second warning tube 41b and the connecting arm 20 are deformed, the vehicle is slightly damaged, and the vehicle can continue to travel; 00mm high pothole or bump, at this time, the force applied to the connecting arm 20 is greater than or equal to the second preset value and less than the allowable load of the connecting arm 20, indicating that the first warning tube 41a and the second warning tube 41b of the vehicle are damaged, the connecting arm 20 is deformed, and the vehicle must replace the shock absorbing system 100 or the warning structure 40; when the vehicle passes through a pothole or bump with a height of 120mm at a speed of 80 kilometers per hour, at this time, the force applied to the connecting arm 20 is greater than or equal to the allowable load of the connecting arm 20, indicating that the first warning tube 41a and the second warning tube 41b of the vehicle are damaged, and the connecting arm 20 is bent. At this time, the vehicle is damaged, and there is a safety hazard if the vehicle continues to drive. The vehicle must replace multiple components such as the swing arm 60, steering knuckle, shock absorbing system 100 and subframe 70.

[0069] In this embodiment, the structural strength of the plurality of warning tubes 41 is set to gradually increase in the direction from the outside to the inside of the radial direction of the warning structure 40, wherein N preset values ​​are set, and N is greater than or equal to 2, the N preset values ​​are increased in sequence and correspond one-to-one with the plurality of warning tubes 41 from the outside to the inside of the radial direction of the warning structure 40, the smallest preset value among the plurality of preset values ​​is the first preset value, when the force applied to the connecting arm 20 is greater than or equal to the i-th preset value, i≤N, the warning tube 41 corresponding to the i-th preset value, and all the warning tubes 41 located radially outside the warning tube 41 corresponding to the i-th preset value are destroyed, so that when the warning structure 40 is destroyed, the plurality of warning tubes 41 can be destroyed in sequence from the outside to the inside of the radial direction of the warning structure 40, thereby effectively realizing the graded warning function of the warning structure 40, and further allowing the user to accurately judge the magnitude of the force and the location where the warning structure 40 is damaged, thereby facilitating targeted inspection and maintenance and subsequent analysis and processing.

[0070] In one embodiment of the present invention, Figure 1As shown, the warning tube 41 is provided with a structural weak area 410; and / or the warning tube 41 is a brittle material. It should be noted that the structural weak area 410 on the warning tube 41 can be a hole that penetrates the warning tube 41 along the wall thickness direction of the warning tube 41 or a groove on the outer side surface of the warning tube 41 in the radial direction.

[0071] The structural weak area 410 on the warning tube 41 can effectively guide the deformation of the warning tube 41, and make the warning tube 41 first break at the weak point of the structural weak area 410 when it is broken. In addition, by adjusting the type, position, number and shape of the structural weak area 410 on the warning tube 41, the allowable load of the warning tube 41 can be calibrated. In this way, the allowable load of the warning tube 41 and the break position of the warning tube 41 when it is broken can be accurately controlled.

[0072] It should be noted that brittle materials refer to materials that are destroyed and fractured with only a small deformation under the action of external force. The characteristic of brittle materials is that they hardly undergo plastic deformation before fracture, that is, the fracture process is almost completed instantly, and usually no warning signal is given. The fracture surface of brittle materials is flat, there are no shear marks on the edges, the color is relatively bright, and sometimes slightly gray. The brittle material piece of the warning tube 41 can be a ceramic piece.

[0073] It should be noted that ceramic is a brittle material with high hardness and compressive strength, but relatively low tensile strength. Using ceramic as the material of the early warning tube 41 can ensure that the early warning tube 41 can break in a predictable manner when subjected to a large impact load, thereby effectively controlling the destruction mode of the early warning tube 41.

[0074] In addition, the warning tube 41 may also be made of aluminum, steel or alloy. It should be noted that aluminum is a light metal with good processing properties and certain ductility. Through appropriate heat treatment or alloying, the aluminum warning tube 41 can have specific mechanical properties so that it breaks or deforms when a predetermined stress level is reached, thereby accurately controlling the size of the allowable load of the warning tube 41.

[0075] Ceramics and aluminum both have their own characteristics. For example, the high hardness and brittleness of ceramics are suitable for situations that require a clear damage threshold, while the light weight and ductility of aluminum are suitable for application scenarios that require a certain degree of durability.

[0076] For example, the warning tube 41 is provided with a structural weak area 410; for another example, the warning tube 41 is made of a brittle material; for another example, the warning tube 41 is provided with a structural weak area 410 and the warning tube 41 is made of a brittle material. Figure 1As shown, a structural weak area 410 is provided on the first warning tube 41a and the second warning tube 41b, and the structural weak area 410 is an oblong hole that penetrates the warning tube 41 along the radial direction of the warning tube 41. Furthermore, the number of the oblong holes can be multiple, and the multiple oblong holes are distributed at intervals along the outer circumferential surface of the warning tube 41.

[0077] This embodiment can accurately control the allowable load of the warning tube 41 and the damage position of the warning tube 41 when the warning tube 41 is damaged by setting the structural weak area 410 on the warning tube 41; and can effectively control the damage mode by setting the warning tube 41 to be a brittle material part.

[0078] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the vibration reduction system 100 further includes: a stopper 50, which is disposed on the outer surface of the lower end of the vibration reduction device body 10, and the upper end of the warning tube 41 abuts against the stopper 50 in the upper and lower directions. Specifically, the stopper 50 can be made of a high-strength and wear-resistant material, for example, the material of the stopper 50 can be steel or a high-strength alloy, so that the stopper 50 can withstand impact and ensure the durability of the stopper 50 for long-term use.

[0079] The stopper 50 is provided with an abutment portion 51, and the upper end of the warning tube 41 abuts against the abutment portion 51 of the stopper 50 in the vertical direction, and the lower end of the warning tube 41 can be welded to the connecting bracket 30, thereby ensuring that the position of the warning tube 41 in the vertical direction is fixed, and preventing the warning tube 41 from moving unnecessarily when it is working normally or being impacted. Further, the length of the first warning tube 41a in the vertical direction can be greater than that of the second warning tube 41b, and the abutment portion 51 can be set in a step form and abut against the upper ends of the first warning tube 41a and the second warning tube 41b.

[0080] In addition, since the upper end of the warning tube 41 abuts against the limit member 50 in the up and down directions, when the warning tube 41 is damaged, the warning tube 41 can be repaired or replaced by disassembling the warning tube 41, thereby effectively improving the convenience of maintenance of the warning tube 41 and effectively reducing maintenance costs.

[0081] In this embodiment, by providing a stopper 50 in the vibration reduction system 100, the stopper 50 is provided on the outer surface of the lower end of the vibration reduction body 10, and the upper end of the warning tube 41 abuts against the stopper 50 in the upper and lower directions, so that the warning tube 41 can be effectively fixed between the vibration reduction body 10 and the connecting bracket 30, thereby effectively improving the stability of the warning tube 41. In addition, the maintenance of the warning tube 41 can be facilitated, thereby effectively reducing the maintenance cost of the warning tube 41.

[0082] In one embodiment of the present invention, Figure 1-Figure 3As shown, the shock absorber body 10 includes a shock absorber cylinder 162 , and the limiting member 50 extends in a ring shape along the circumference of the shock absorber cylinder 162 . The limiting member 50 is sleeved and fixed on the shock absorber cylinder 162 .

[0083] In a specific example, if Figure 1-Figure 3 As shown, the shock absorber body 10 includes a damper 16, and the damper 16 includes a shock-absorbing cylinder 162. The limiting member 50 extends in a ring shape along the circumference of the shock-absorbing cylinder 162. Further, the abutting portion 51 of the limiting member 50 also extends in a ring shape along the circumference of the shock-absorbing cylinder 162. As a result, the upper end of the warning cylinder 41 can be completely abutted against the abutting portion 51, so that the warning cylinder 41 can be evenly stressed, thereby avoiding damage caused by excessive local stress of the warning cylinder 41.

[0084] For example, the stopper 50 is threadedly sleeved on the damping cylinder 162; for another example, the stopper 50 is welded to the damping cylinder 162; for another example, the stopper 50 is fixed to the damping cylinder 162 by a shaping and tightening process; for another example, the stopper 50 is clamped to the damping cylinder 162. Further, the fixed connection method between the stopper 50 and the damping cylinder 162 can be a combination of the aforementioned multiple fixed connection methods.

[0085] In a specific example, if Figure 1-Figure 3 As shown, the limit member 50 is threadedly sleeved on the vibration damping cylinder 162 and the limit member 50 and the vibration damping cylinder 162 are welded and connected. That is to say, the limit member 50 and the vibration damping cylinder 162 are provided with mutually matching threaded structures, and the limit member 50 can be conveniently installed and adjusted through the threaded connection between the limit member 50 and the vibration damping cylinder 162.

[0086] Specifically, the stopper 50 can be firstly threadedly sleeved on the damping cylinder 162, and the position of the stopper 50 on the damping cylinder 162 can be adjusted by rotating the stopper 50, and a predetermined tightening force is applied, so that the contact force between the stopper 50 and the upper end of the warning cylinder 41 reaches a preset value, thereby effectively ensuring the accuracy of the warning function of the warning structure 40. Afterwards, the stopper 50 is welded to the damping cylinder 162, thereby effectively preventing the stopper structure from moving unnecessarily when subjected to force, thereby effectively fixing the stopper 50, and further effectively improving the stability of the stopper 50.

[0087] In this embodiment, the limiting member 50 is extended into a ring shape along the circumference of the vibration reduction cylinder 162, and the limiting member 50 is sleeved and fixed on the vibration reduction cylinder 162, so that the upper end of the warning cylinder 41 can be completely abutted against the abutment portion 51, so that the warning cylinder 41 can be evenly stressed, avoiding damage caused by excessive local stress of the warning cylinder 41. In addition, the limiting member 50 can be effectively fixed, thereby effectively improving the stability of the limiting member 50 when it is stressed.

[0088] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the connecting arm 20 is a hollow cylindrical structure. For example, the connecting arm 20 is extended in the up-down direction, and the cross-section of the connecting arm 20 may be in the shape of a circular ring. Further, the upper end of the connecting arm 20 may be welded to the lower end of the shock absorber body 10, and the lower end of the connecting arm 20 may be welded to the connecting bracket 30.

[0089] The hollow cylindrical structure of the connecting arm 20 can not only effectively save the material usage of the connecting arm 20, thereby effectively reducing the production cost, but also effectively reduce the structural weight of the connecting arm 20, thereby effectively reducing the load of the suspension 600, thereby helping to extend the service life of the suspension 600. In addition, the hollow cylindrical structure of the connecting arm 20 can effectively improve the rigidity and bending resistance of the connecting arm 20, thereby achieving good mechanical properties, thereby effectively improving the structural strength of the connecting arm 20.

[0090] Preferably, the connecting arm 20 of the hollow cylindrical structure can be made of aluminum alloy. It should be noted that aluminum alloy is an alloy material based on aluminum and composed of one or more alloying elements. By adding different alloying elements, the mechanical properties of aluminum can be significantly improved, such as improving strength, hardness and wear resistance, while maintaining its advantages of light weight and corrosion resistance. Generally speaking, aluminum alloy has the advantages of high specific strength, light weight, low cost, easy processing, corrosion resistance and recyclability.

[0091] Preferably, the connecting arm 20 can be manufactured by an aluminum alloy extrusion molding process, which is a process of extruding a solid or hollow metal blank through a die under high temperature and high pressure conditions, and has the advantages of simple process flow, high production capacity, and low die cost. The connecting arm 20 manufactured by the extrusion molding process has excellent bending resistance and rigidity.

[0092] This embodiment can effectively save materials, reduce costs, and effectively reduce the weight of the connecting arm 20 by setting the connecting arm 20 as a hollow cylindrical structure, thereby reducing the load of the suspension 600 and effectively protecting the suspension 600. In addition, the rigidity and bending resistance of the connecting arm 20 can be effectively improved, thereby effectively improving the structural strength of the connecting arm 20, avoiding the separation of the vehicle body and the suspension 600 caused by the damage of the connecting arm 20, and effectively improving safety.

[0093] The vehicle according to the second embodiment of the present invention comprises the vibration reduction system 100 according to the first embodiment of the present invention. In a specific example, Figure 6As shown, the vehicle further includes a vehicle body and a suspension 600, the suspension 600 includes a subframe 70, a swing arm 60 and a wheel assembly, the swing arm 60 includes an upper swing arm 60a and a lower swing arm 60b, and the wheel assembly includes a wheel 80. There are two damping systems 100, and the two damping systems 100 are symmetrically arranged on both sides of the suspension 600. Further, the upper end of the shock absorber body 10 is bolted to the vehicle body, and the connecting bracket 30 is bolted to the lower swing arm 60b of the suspension 600.

[0094] According to the vehicle of the embodiment of the present invention, by setting the vibration reduction system 100 of the first embodiment mentioned above, the warning structure 40 can send out a warning message when the force acting on the connecting arm 20 of the vibration reduction system 100 is greater than or equal to the first preset value, thereby effectively reminding the user, thereby avoiding safety accidents caused by damage to the vibration reduction system 100, thereby effectively improving safety and reliability.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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 vibration reduction system, characterized in that: include: Shock absorber body; A connecting arm, the connecting arm is connected to the lower end of the shock absorber body and extends downward; A connecting bracket, the connecting bracket is connected to the lower end of the connecting arm, and the connecting bracket is suitable for connecting the swing arm; The early warning structure is configured to issue an early warning message when the force applied to the connecting arm is greater than or equal to a first preset value.

2. The vibration reduction system according to claim 1, characterized in that: The early warning structure is connected between the connecting bracket and the lower end of the shock absorber body. The structural strength of the early warning structure is less than the structural strength of the connecting arm. The early warning structure is configured as follows: when the force applied to the connecting arm is greater than or equal to the first preset value, at least part of the early warning structure is destroyed, and the early warning information includes the sound emitted when the early warning structure is destroyed.

3. The vibration reduction system according to claim 2, characterized in that: The early warning structure extends up and down in a cylindrical shape. The early warning structure is sleeved on the outside of the connecting arm and is spaced apart from the connecting arm in the radial direction of the early warning structure.

4. The vibration reduction system according to claim 3, characterized in that: The early warning structure comprises one or a plurality of early warning tubes arranged at intervals inwardly and outwardly along the radial direction of the early warning structure, and each of the early warning tubes is connected between the connecting bracket and the shock absorber body.

5. The vibration reduction system according to claim 4, characterized in that: In the radial direction from outside to inside of the warning structure, the structural strength of the plurality of warning tubes gradually increases. Among them, N preset values ​​are set, and N is greater than or equal to 2, the N preset values ​​are increased in sequence and correspond one by one to the plurality of warning tubes from the outside to the inside along the radial direction of the warning structure, and the smallest preset value among the plurality of preset values ​​is the first preset value, When the force applied to the connecting arm is greater than or equal to the i-th preset value, i≤N, the warning tube corresponding to the i-th preset value and all the warning tubes located radially outside the warning tube corresponding to the i-th preset value are destroyed.

6. The vibration reduction system according to claim 3, characterized in that: The warning tube is provided with a structural weak area; and / or the warning tube is made of a brittle material.

7. The vibration reduction system according to claim 3, characterized in that: It also includes: a limiting member, which is arranged on the outer surface of the lower end of the shock absorber body, and the upper end of the warning tube abuts against the limiting member in the upper and lower directions.

8. The vibration reduction system according to claim 7, characterized in that: The shock absorber body comprises a shock absorber cylinder, the limiting member extends in a ring shape along the circumference of the shock absorber cylinder, and the limiting member is sleeved on and fixed to the shock absorber cylinder.

9. The vibration reduction system according to claim 1, characterized in that: The connecting arm is a hollow cylindrical structure.

10. A vehicle, characterized in that: Comprising a vibration reduction system according to any one of claims 1-9.

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