Vibration absorber and vehicle

Abstract

The application relates to the technical field of vehicle bodies, and provides a vibration absorber and a vehicle. The vibration absorber comprises a mounting bracket, a first mass block and a second mass block, the two ends of the first mass block along a first direction are connected with the mounting bracket through first elastic damping pieces respectively, and a mounting cavity is formed in the first mass block; the second mass block is arranged in the mounting cavity, and the two ends of the second mass block along the first direction are connected with the first mass block through second elastic damping pieces respectively. In this way, a two-stage vibration absorption structure in series is formed on the vibration absorber, vibration energy is layered dissipated, the vibration amplitude is reduced to be lower, the low-frequency booming sound in the vehicle is effectively improved, and the comfort of a user driving the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and more particularly to a shock absorber and a vehicle. Background Technology

[0002] As users demand higher levels of vehicle comfort, in-vehicle noise has become a primary target for improvement as it is a significant factor affecting vehicle comfort. In particular, the low-frequency rumbling noise caused by the tailgate is easily perceived by users and can cause them discomfort.

[0003] The main reason for the low-frequency rumbling sound inside the car is that the tires vibrate against the road surface during the vehicle's operation. This vibration is transmitted through the suspension, subframe, body, hinges, sealing strips, and limit blocks to the tailgate, causing the tailgate to vibrate. This, in turn, compresses the cavity inside the car, resulting in the low-frequency rumbling sound inside the car.

[0004] Traditional solutions typically involve installing vibration absorbers on the rear door to absorb vibrations. However, while traditional vibration absorbers reduce the vibration amplitude, they also generate two new vibration peaks on either side of the reduced main vibration peak, which can easily lead to co-frequency peaks and cause resonance peak shift, thus affecting the vibration reduction effect. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a vibration absorber and a vehicle. By setting a two-stage vibration absorption structure on the vibration absorber, the vibration energy is offset by the two-stage anti-phase resonance, and the vibration energy is dissipated in layers, thereby reducing the vibration amplitude to a lower level and effectively improving the low-frequency roaring sound inside the vehicle.

[0006] The first aspect of this application provides a vibration absorber, comprising: Mounting bracket; A first mass block, the two ends of the first mass block along the first direction are respectively connected to the mounting bracket through a first elastic damping element, and a mounting cavity is formed on the first mass block; The second mass block is disposed in the mounting cavity, and its two ends along the first direction are respectively connected to the first mass block through a second elastic damping member.

[0007] The vibration absorber provided in this application has a first-stage vibration absorption structure formed by connecting the two ends of a first mass block along a first direction to a mounting bracket via first elastic damping elements. A mounting cavity is formed on the first mass block. A second-stage vibration absorption structure is formed by connecting the two ends of a second mass block along the first direction to the first mass block via second elastic damping elements. Thus, a two-stage series vibration absorption structure is formed on the vibration absorber. When the vibration of the component being absorbed is transmitted to the mounting bracket, the first elastic damping element drives the first mass block to vibrate, achieving first-stage vibration absorption. The vibration of the first mass block is then transmitted to the second elastic damping element, which drives the second mass block to vibrate, achieving second-stage vibration absorption. This achieves stratified dissipation of vibration energy. Compared to traditional vibration dampers, it can eliminate the harmonic amplitude caused by adding a vibration absorber, cover a wider frequency range, and reduce the vibration amplitude of the component being absorbed to a lower level. Therefore, when this vibration absorber is applied to the tailgate of a vehicle, it can effectively improve the low-frequency rumbling noise inside the vehicle caused by the tailgate, thereby enhancing the user's driving comfort.

[0008] In some embodiments, the first elastic damping member is detachably connected to the first mass block and the mounting bracket, respectively; And / or, the second elastic damping element is detachably connected to the second mass block and the first mass block, respectively. By detachably connecting the first elastic damping element to the first mass block and the mounting bracket respectively, the application frequency and vibration reduction effect of the vibration absorber can be adjusted by replacing the first elastic damping element and / or adjusting the mass of the first mass block, thereby adapting to the vibration absorption requirements of the vibration absorber under different products or different application scenarios, such as adapting to the problem of low-frequency booming sound at different frequencies, and minimizing the amplitude of the frequency corresponding to the low-frequency booming sound.

[0009] By detachably connecting the second elastic damping element to the second mass block and the first mass block respectively, the application frequency and vibration reduction effect of the vibration absorber can be adjusted by replacing the second elastic damping element and / or adjusting the mass of the second mass block, or by simultaneously replacing the first elastic damping element and / or adjusting the mass of the first mass block. This allows for better adaptation to the vibration absorption requirements of different products or application scenarios, thereby improving the versatility of the vibration absorber.

[0010] In some embodiments, the first mass block is provided with a plurality of first counterweight holes for mounting counterweights; And / or, the second mass block has a plurality of second counterweight holes for mounting counterweights.

[0011] By providing multiple first counterweight holes on the first mass block, the mass of the first mass block can be adjusted by installing counterweights into the first counterweight holes and by adjusting the number of counterweights installed. The adjustment process is simple, easy to operate, versatile, and low in cost.

[0012] By providing multiple second counterweight holes on the second mass block, the mass of the second mass block can be adjusted by installing counterweights into the second counterweight holes and adjusting the number of counterweights installed. Alternatively, the mass of the first and second mass blocks can be adjusted simultaneously as needed. The adjustment process is simple, easy to operate, versatile, and low in cost.

[0013] In some embodiments, the mounting bracket includes a bracket body and first mounting plates respectively connected to both ends of the bracket body along the first direction; The first mass block and the first elastic damping elements located at both ends of the first mass block are both located between the two first mounting plates, and the first elastic damping elements are fastened to the corresponding end of the first mounting plate by first fasteners.

[0014] This configuration allows the first mass block to be connected to the two first mounting plates of the mounting bracket at both ends along the first direction via first elastic damping elements, and the first elastic damping elements are fastened to the corresponding first mounting plates via first fasteners. This makes assembly simple and disassembly convenient, allowing the first elastic damping elements to be removed and replaced as needed.

[0015] In some embodiments, the first elastic damping member includes a first rubber body, a first connector and a second connector, wherein the first connector and the second connector are respectively connected to both ends of the first rubber body along the first direction; The first mass block has a first mounting hole, the first connector is threadedly connected to the first mounting hole, the second connector has an internal thread hole, and the first fastener passes through the first mounting plate and is connected to the internal thread hole.

[0016] This configuration allows the first elastic damping element to be detachably connected to the first mass block and the first mounting plate via the first and second connectors, respectively. By utilizing the high elasticity and viscoelasticity of the first rubber body, the kinetic energy of mechanical vibration is converted into heat energy, effectively reducing vibration transmission. Furthermore, the damping coefficient and stiffness of the first rubber body can be adjusted through the formulation to meet the damping and stiffness requirements of the first elastic damping element in different application scenarios.

[0017] In some embodiments, the second elastic damping member includes a second rubber body and a first mounting block and a second mounting block respectively connected to the two ends of the second rubber body along the first direction; The first mounting block and the second mass block are fastened together by a second fastener, and the second mounting block and the first mass block are fastened together by a third fastener.

[0018] This configuration allows the second elastic damping element to be detachably connected to the second mass block and the first mass block respectively via the first mounting block and the second mounting block. By utilizing the high elasticity and viscoelasticity of the second rubber body, the kinetic energy of mechanical vibration is converted into heat energy, effectively reducing vibration transmission. In addition, the damping coefficient and stiffness of the second rubber body can be adjusted by the formula to meet the damping and stiffness requirements of the second elastic damping element in different application scenarios.

[0019] In some embodiments, the second mass block has insertion slots at both ends along the first direction, the first mounting block is inserted into the insertion slots, and the second fastener passes through the second mass block and the first mounting block in a direction perpendicular to the first direction. The first mass block has limiting grooves on the cavity walls at both ends of the mounting cavity, the second mounting block is inserted into the limiting grooves, and the third fastener passes through the first mass block and the second mounting block in a direction perpendicular to the first direction.

[0020] By inserting the first mounting block of the second elastic damping member into the insertion slot of the second mass block, the pre-positioning between the second elastic damping member and the second mass block is achieved, so as to facilitate the subsequent installation of the second fastener.

[0021] By inserting the second mounting block of the second elastic damper into the limiting groove of the first mass block, the second elastic damper and the first mass block are pre-positioned to facilitate the subsequent installation of the third fastener.

[0022] In some embodiments, the mounting bracket includes a bracket body, first mounting plates respectively connected to both ends of the bracket body along the first direction, and a second mounting plate connected to at least one side edge of the bracket body, the first mass block being connected between the two first mounting plates, and the bracket body and the second mounting plate being respectively provided with a first buffer member; And / or, the first mass block is provided with a second buffer on the cavity wall of the mounting cavity.

[0023] By providing first buffers on the bracket body and the second mounting plate of the mounting bracket, the first buffers can buffer the collision between the first mass block and the mounting bracket during vibration, thereby better reducing vibration.

[0024] By providing a second buffer on the cavity wall of the mounting cavity of the first mass block, the collision between the second mass block and the first mass block during vibration can be buffered, thereby better reducing vibration.

[0025] In some embodiments, the mounting bracket includes a bracket body and first mounting plates connected to both ends of the bracket body along the first direction, and the first mass block is connected between the two first mounting plates; The main body of the bracket is provided with mounting feet at both ends along the first direction, and the mounting feet are used to fix and connect with the vibration-absorbing component.

[0026] By connecting the first mounting plates to both ends of the main body of the mounting bracket, a mounting carrier is provided for the installation of the first mass block; by providing mounting feet at both ends of the main body of the bracket, the vibration absorber is fixedly connected to the vibration-absorbing component through the mounting feet, so as to absorb the vibration of the vibration-absorbing component and achieve the purpose of vibration reduction.

[0027] A second aspect of this application provides a vehicle including a shock absorber as described in any of the preceding claims.

[0028] The vehicle provided in this application has the beneficial effects of any of the above-described vibration absorbers because it includes the vibration absorber described in any of the above-described claims. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the vibration absorber provided in the embodiments of this application; Figure 2 for Figure 1 A top view of the vibration absorber shown. Figure 3 for Figure 1 The diagram shows the structural design of the mounting bracket for the vibration absorber. Figure 4 for Figure 1 The diagram shows the structure of the vibration absorber after removing the mounting bracket and the first fastener. Figure 5 for Figure 1An exploded view of the assembly of the first elastic damping element, the first mass block, and the mounting bracket of the vibration absorber shown. Figure 6 for Figure 4 Rear view of the structure shown; Figure 7 for Figure 6 An exploded rear-view diagram of the assembly of the second elastic damping element of the vibration absorber with the second mass block and the first mass block. Figure 8 for Figure 6 An exploded view from the main perspective of the second elastic damping element of the vibration absorber after it is assembled with the second mass block and then with the first mass block.

[0032] The components include: 1. Mounting bracket; 11. Bracket body; 12. First mounting plate; 13. Second mounting plate; 14. Mounting legs; 2. First mass block; 21. Mounting cavity; 22. First counterweight hole; 23. First mounting hole; 24. Limiting groove; 25. Third mounting hole; 3. First elastic damping element; 31. First rubber body; 32. First connector; 33. Second connector; 4. Second mass block; 41. Second counterweight hole; 42. Insertion slot; 43. Second mounting hole; 5. Second elastic damping element; 51. Second rubber body; 52. First mounting block; 53. Second mounting block; 6. First fastener; 7. Second fastener; 8. Third fastener; 9. First buffer; 10. Second buffer; In the diagram, the double-headed arrow YY represents the first direction, the double-headed arrow ZZ represents the second direction, and the double-headed arrow XX represents the third direction. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0035] During vehicle operation, the tires vibrate against the road surface, and this vibration is transmitted through the suspension, subframe, body, hinges, weatherstripping, and limit blocks to the tailgate, causing it to vibrate. This vibration, in turn, compresses the interior cavity, resulting in a low-frequency rumbling sound inside the vehicle. When the vibration frequency coincides with the natural frequency of the tailgate and the acoustic cavity, acoustic resonance occurs, increasing the vibration amplitude and amplifying the low-frequency rumbling sound. This can compress the eardrum, causing discomfort to the user.

[0036] To address the low-frequency rumbling noise inside the vehicle caused by the vibration of the tailgate, traditional solutions typically involve installing vibration absorbers on the tailgate to absorb the vibration. These absorbers are usually single-stage structures. However, while reducing the vibration amplitude, single-stage structures also generate two new vibration peaks on either side of the reduced main vibration peak, which can easily lead to co-frequency peaks. This can cause resonance peak shift and affect the vibration reduction effect.

[0037] Based on this, the present application provides a vibration absorber and a vehicle. By setting a two-stage series vibration absorption structure on the vibration absorber, the vibration energy is canceled out by the two-stage anti-phase resonance, and the vibration energy is dissipated in layers, thereby reducing the vibration amplitude to a lower level and effectively improving the low-frequency roaring sound inside the vehicle.

[0038] The vibration absorber and vehicle provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0039] Reference Figures 1 to 8 As shown, some embodiments of this application provide a vibration absorber, including a mounting bracket 1, a first mass block 2, and a second mass block 4.

[0040] Among them, reference Figure 1 and Figure 2 As shown, the first mass block 2 is connected to the mounting bracket 1 at both ends along the first direction through the first elastic damping member 3, and a mounting cavity 21 is formed on the first mass block 2; the second mass block 4 is disposed in the mounting cavity 21, and the second mass block 4 is connected to the first mass block 2 at both ends along the first direction through the second elastic damping member 5.

[0041] It should be understood that the mounting bracket 1 serves as a mounting carrier for mounting and supporting the first mass block 2 and the second mass block 4. At the same time, the mounting bracket 1 serves as a connecting component between the vibration absorber and the external vibration-absorbing component, enabling the vibration absorber to be installed on the vibration-absorbing component (e.g., the rear door).

[0042] The first mass block 2 is connected to the mounting bracket 1 at both ends along the first direction through the first elastic damping element 3. That is, the first mass block 2 is elastically connected to the mounting bracket 1 at both ends along the first direction, rather than rigidly connected. In this way, when the vibration of the vibration-absorbing component is transmitted to the mounting bracket 1, the mounting bracket 1 transmits it to the first mass block 2 through the first elastic damping element 3. During the transmission process, the first elastic damping element 3 can effectively absorb the vibration and achieve the vibration reduction effect.

[0043] The first mass block 2 can be elongated, and the first direction can be the length direction of the first mass block 2. Of course, the first mass block 2 can also be other shapes. For example, when this shock absorber is applied to the rear door of a vehicle, the first direction can be the left-right direction of the vehicle, such as... Figure 1 and Figure 2 The bidirectional arrow YY is shown in the diagram. Of course, when this vibration absorber is applied to other components or products that require vibration reduction, the first direction can be set reasonably according to actual needs.

[0044] A mounting cavity 21 is formed on the first mass block 2 to provide mounting space for the second mass block 4 to be mounted on the first mass block 2. The second mass block 4 is disposed in the mounting cavity 21. Both ends of the second mass block 4 along the first direction are connected to the first mass block 2 through second elastic damping members 5, that is, the two ends of the second mass block 4 along the first direction are elastically connected to the first mass block 2, rather than rigidly connected. In this way, when the vibration of the vibration-absorbing component is transmitted to the mounting bracket 1, and the mounting bracket 1 transmits it to the first mass block 2 through the first elastic damping member 3, the first mass block 2 transmits the vibration to the second mass block 4 through the second elastic damping member 5. During the transmission process, the second elastic damping member 5 can be used to further absorb the vibration, achieving a better vibration reduction effect.

[0045] The vibration absorber provided in this application embodiment has a first mass block 2 connected to the mounting bracket 1 at both ends along the first direction through a first elastic damping member 3 to form a first-stage vibration absorption structure. An mounting cavity 21 is formed on the first mass block 2. The second mass block 4 is connected to the first mass block 2 at both ends along the first direction through a second elastic damping member 5 to form a second-stage vibration absorption structure, thereby forming a two-stage series vibration absorption structure on the vibration absorber. When the vibration of the vibration-absorbing component is transmitted to the mounting bracket 1, it will drive the first mass block 2 to vibrate through the first elastic damping element 3, achieving first-level vibration absorption. The vibration of the first mass block 2 will be transmitted to the second elastic damping element 5, which will drive the second mass block 4 to vibrate, achieving second-level vibration absorption. Thus, the vibration energy is canceled out through two-stage anti-phase resonance, achieving layered dissipation of vibration energy. Compared with traditional single-stage shock absorbers, it can eliminate the co-frequency amplitude caused by adding shock absorbers, cover a wider frequency range, and reduce the vibration amplitude of the vibration-absorbing component to a lower level. Therefore, when this shock absorber is applied to the tailgate of a vehicle, it can effectively improve the low-frequency rumbling noise inside the vehicle caused by the tailgate, thereby improving the comfort of the user driving the vehicle.

[0046] In practical applications, this vibration absorber can be used on the tailgate of a vehicle. The tailgate typically consists of an outer panel and an inner panel. The absorber is installed on the inner panel, specifically on the sheet metal below the tailgate glass. The installation location of the absorber on the tailgate can follow the traditional installation method for vibration absorbers, or it can be installed in other locations on the tailgate as needed. Furthermore, this vibration absorber is not limited to vehicle tailgates; it can also be installed on other components or products requiring vibration damping as needed.

[0047] In some embodiments, refer to Figures 3 to 5 As shown, the first elastic damping element 3 is detachably connected to the first mass block 2 and the mounting bracket 1 respectively.

[0048] In other words, the first elastic damping element 3 is detachably connected to the first mass block 2, and the first elastic damping element 3 is detachably connected to the mounting bracket 1. This configuration allows the first elastic damping element 3 to be removed and replaced, and the first mass block 2 to be removed and replaced or adjusted.

[0049] It should be understood that by replacing the first elastic damping element 3 with different damping and / or different stiffness, the damping and / or stiffness of the first elastic damping element 3 of the vibration absorber can be adjusted to adapt to the low-frequency booming sound problem at different frequencies; by adjusting the damping and / or stiffness of the first elastic damping element 3 and adjusting the mass of the first mass block 2, the amplitude of the frequency corresponding to the booming sound can be minimized, thereby adjusting the application frequency and vibration reduction effect of the vibration absorber to adapt to the vibration absorption requirements of the vibration absorber in different products or different application scenarios.

[0050] In specific implementation, the first elastic damping component 3 can be connected to the first mass block 2 and the mounting bracket 1 respectively by means of fastener connection, which is simple in structure and easy to disassemble and assemble; of course, the first elastic damping component 3 can also be connected to the first mass block 2 and the mounting bracket 1 respectively by means of snap-fit ​​connection or other means.

[0051] In some embodiments, refer to Figures 6 to 8 As shown, the second elastic damping element 5 is detachably connected to the second mass block 4 and the first mass block 2, respectively. In other words, the second elastic damping element 5 is detachably connected to the second mass block 4, and the second elastic damping element 5 is detachably connected to the first mass block 2. This configuration allows the second elastic damping element 5 to be removed and replaced, and the second mass block 4 to be removed and replaced or adjusted.

[0052] It should be understood that by replacing the second elastic damping element 5 with one of different damping and / or different stiffness, the damping and / or stiffness of the second elastic damping element 5 of the vibration absorber can be adjusted to adapt to the low-frequency booming sound problem at different frequencies. By adjusting the damping and / or stiffness of the second elastic damping element 5 and adjusting the mass of the second mass block 4, the amplitude of the frequency corresponding to the booming sound can be minimized, thereby adjusting the application frequency and vibration reduction effect of the vibration absorber to adapt to the vibration absorption requirements of different products or different application scenarios.

[0053] In specific implementation, the second elastic damping element 5 can be connected to the second mass block 4 and the first mass block 2 respectively by means of fastener connection, which is simple in structure and easy to disassemble and assemble; of course, the second elastic damping element 5 can also be connected to the second mass block 4 and the first mass block 2 respectively by means of snap-fit ​​connection or other means.

[0054] It should be noted that the damping and / or stiffness of the first elastic damping element 3 and the second elastic damping element 5 can be adjusted in conjunction with the adjustment of the mass of the first mass block 2 and the second mass block 4, so as to better adapt to the vibration absorption requirements of different products or different application scenarios and improve the versatility of the vibration absorber.

[0055] In some embodiments, refer to Figure 2 and Figure 4 As shown, the first mass block 2 has multiple first counterweight holes 22 for installing counterweights.

[0056] This configuration allows for the adjustment of the mass of the first mass block 2 by installing counterweights into the first counterweight hole 22 and by adjusting the number of counterweights installed. The adjustment process is simple, easy to operate, versatile, and low in cost.

[0057] In practical implementation, the first counterweight hole 22 can be a bolt hole, and the counterweight can be a bolt, which can be screwed into or out of the bolt hole by tightening. The structure is simple and the operation is convenient. Specifically, the first counterweight hole 22 can be a blind hole, but it can also be a through hole as needed. The first counterweight hole 22 can be located on two opposite surfaces of the first mass block 2 along the second direction. Specifically, multiple first counterweight holes 22 are respectively opened on the two opposite surfaces of the first mass block 2 along the second direction, and the multiple first counterweight holes 22 are spaced apart along the first direction of the first mass block 2. The second direction can be the height direction of the first mass block 2, such as... Figure 1 The double-headed arrow ZZ indicates this. When the shock absorber is applied to the rear door of a vehicle, the second direction can be the height direction of the vehicle.

[0058] In some embodiments, refer to Figure 1 and Figure 4 As shown, the second mass block 4 has multiple second counterweight holes 41 for installing counterweights.

[0059] This configuration allows for the adjustment of the mass of the second mass block 4 by installing counterweights into the second counterweight hole 41 and by adjusting the number of counterweights installed. The adjustment process is simple, easy to operate, versatile, and low in cost.

[0060] In specific implementation, the second counterweight hole 41 can be a bolt hole, and the counterweight can be a bolt, which can be screwed into or out of the bolt hole by tightening. The structure is simple and the operation is convenient. Specifically, the second counterweight hole 41 can be a blind hole, but it can also be a through hole as needed. The second counterweight hole 41 can be located on at least one of the two opposing surfaces of the second mass block 4 along a third direction. Specifically, multiple second counterweight holes 41 are provided on at least one of the two opposing surfaces of the second mass block 4 along a third direction, and these multiple second counterweight holes 41 are spaced apart along the first direction of the second mass block 4. The third direction can be the width direction of the second mass block 4, such as... Figure 1 and Figure 2 The double-headed arrow XX indicates this. When this shock absorber is applied to the rear door of a vehicle, the third direction can be the front-to-back direction of the vehicle.

[0061] It should be noted that, in practice, the masses of the first mass block 2 and the second mass block 4 are also adjusted simultaneously according to actual needs.

[0062] In some embodiments, refer to Figures 1 to 5 As shown, the mounting bracket 1 includes a bracket body 11 and first mounting plates 12 respectively connected to both ends of the bracket body 11 along a first direction; the first mass block 2 and the first elastic damping member 3 located at both ends of the first mass block 2 are both located between the two first mounting plates 12, and the first elastic damping member 3 is fastened to the corresponding end of the first mounting plate 12 by the first fastener 6.

[0063] This configuration utilizes two first mounting plates 12 to provide mounting carriers and mounting space for the first mass block 2 and the first elastic damping element 3, so that both ends of the first mass block 2 along the first direction are connected to the two first mounting plates 12 of the mounting bracket 1 through the first elastic damping element 3, and the first elastic damping element 3 is fastened to the corresponding first mounting plate 12 through the first fastener 6. The assembly is simple and the disassembly and assembly are convenient, so that the first elastic damping element 3 can be removed and replaced as needed.

[0064] In some embodiments, refer to Figure 5 As shown, the first elastic damping member 3 includes a first rubber body 31, a first connecting body 32, and a second connecting body 33. The first connecting body 32 and the second connecting body 33 are respectively connected to the two ends of the first rubber body 31 along the first direction. A first mounting hole 23 is provided on the first mass block 2. The first connecting body 32 is threadedly connected and fixed to the first mounting hole 23. An internal thread hole is provided on the second connecting body 33. The first fastener 6 passes through the first mounting plate 12 and is threadedly connected and fixed to the internal thread hole.

[0065] This configuration allows the first elastic damping element 3 to be detachably connected to the first mass block 2 and the first mounting plate 12 via the first connector 32 and the second connector 33, respectively. Utilizing the high elasticity and viscoelasticity of the first rubber body 31, the kinetic energy of mechanical vibration is converted into heat energy, effectively reducing vibration transmission. Furthermore, the damping coefficient and stiffness of the first rubber body 31 can be adjusted through the formula to meet the damping and stiffness requirements of the first elastic damping element 3 in different application scenarios.

[0066] In specific implementation, the first rubber body 31 can be a cylindrical rubber body, the first connecting body 32 can be a stud, one end of the stud is fixedly connected to one end of the first rubber body 31 along the first direction, specifically by bonding (e.g., adhesive bonding, vulcanization bonding, etc.), snap-fit ​​connection, etc., the first mounting hole 23 can be a threaded hole, the other end of the stud is threadedly connected and fixed to the first mounting hole 23 on the first mass block 2; the second connecting body 33 can be a nut, one end of the nut is fixedly connected to the other end of the first rubber body 31 along the first direction, specifically by bonding (e.g., adhesive bonding, vulcanization bonding, etc.), snap-fit ​​connection, etc., the first fastener 6 can be a bolt, the bolt passes through the first mounting plate 12 and is screwed and fixed to the nut.

[0067] Of course, the structure of the first elastic damping element 3 is not limited to the above-mentioned limitations, and can also be other structural forms, as long as the first elastic damping element 3 can be installed and fixed between the first mass block 2 and the first mounting plate 12.

[0068] It should be noted that, in order to improve the structural strength and vibration reduction effect of the vibration absorber, the first mounting plate 12 and the first mass block 2 at each end are not limited to one first elastic damping element 3, but two, three or more first elastic damping elements 3 can be set as needed.

[0069] In some embodiments, refer to Figures 6 to 8 As shown, the second elastic damping member 5 includes a second rubber body 51 and a first mounting block 52 and a second mounting block 53 respectively connected to the two ends of the second rubber body 51 along the first direction; the first mounting block 52 is fastened to the second mass block 4 by a second fastener 7, and the second mounting block 53 is fastened to the first mass block 2 by a third fastener 8.

[0070] This configuration allows the second elastic damping element 5 to be detachably connected to the second mass block 4 and the first mass block 2 via the first mounting block 52 and the second mounting block 53, respectively. Utilizing the high elasticity and viscoelasticity of the second rubber body 51, the kinetic energy of mechanical vibration is converted into heat energy, effectively reducing vibration transmission. Furthermore, the damping coefficient and stiffness of the second rubber body 51 can be adjusted through the formulation to meet the damping and stiffness requirements of the second elastic damping element 5 in different application scenarios.

[0071] In specific implementation, the first mounting block 52 and the second rubber body 51 can be fixedly connected by means of bonding (such as adhesive bonding, vulcanization bonding, etc.) or snap-fit ​​connection, and the second mounting block 53 and the second rubber body 51 can be fixedly connected by means of bonding (such as adhesive bonding, vulcanization bonding, etc.) or snap-fit ​​connection.

[0072] In some embodiments, refer to Figure 7 and Figure 8 As shown, the second mass block 4 has insertion slots 42 at both ends along the first direction, the first mounting block 52 is inserted into the insertion slots 42, and the second fastener 7 is inserted through the second mass block 4 and the first mounting block 52 in a direction perpendicular to the first direction; the first mass block 2 has limiting slots 24 on the cavity walls at both ends of the mounting cavity 21, the second mounting block 53 is inserted into the limiting slots 24, and the third fastener 8 is inserted through the first mass block 2 and the second mounting block 53 in a direction perpendicular to the first direction.

[0073] This configuration allows for pre-positioning of the second elastic damping member 5 and the second mass block 4 by inserting the first mounting block 52 of the second elastic damping member 5 into the insertion slot 42 of the second mass block 4, facilitating the subsequent installation of the second fastener 7; and pre-positioning of the second elastic damping member 5 and the first mass block 2 by inserting the second mounting block 53 of the second elastic damping member 5 into the limiting slot 24 of the first mass block 2, facilitating the subsequent installation of the third fastener 8.

[0074] In specific implementation, the second fastener 7 can be a bolt, and the second mass block 4 has a second mounting hole 43 for the second fastener 7 to pass through. The second mounting hole 43 can be a threaded hole or a smooth hole. The first mounting block 52 of the second elastic damping member 5 has a threaded hole corresponding to the second mounting hole 43. The third fastener 8 can be a bolt, and the first mass block 2 has a third mounting hole 25 for the third fastener 8 to pass through. The third mounting hole 25 can be a threaded hole or a smooth hole. The second mounting block 53 of the second elastic damping member 5 has a threaded hole corresponding to the third mounting hole 25.

[0075] It should be understood that the insertion direction of the second fastener 7 and the third fastener 8 can be the same, for example, both being a third direction perpendicular to the first direction, such as... Figure 1 and Figure 2 The double-headed arrow XX indicates this. When this shock absorber is applied to the rear door of a vehicle, the third direction can be the front-to-back direction of the vehicle.

[0076] It should be noted that, in order to improve the firmness of the fixation between each second elastic damping element 5 and the second mass block 4 and the third mass block, the number of the second fastener 7 and the third fastener 8 is not limited to one, but can also be two, three or more.

[0077] Of course, the structure of the second elastic damping element 5 is not limited to the above-mentioned limitations, and can also be other structural forms, as long as the installation and fixation of the second elastic damping element 5 between the second mass block 4 and the first mass block 2 can be achieved.

[0078] In some embodiments, refer to Figure 1 , Figure 2 and Figure 3 As shown, the mounting bracket 1 includes a bracket body 11, first mounting plates 12 connected to both ends of the bracket body 11 along a first direction, and a second mounting plate 13 connected to at least one edge of the bracket body 11. A first mass block 2 is connected between the two first mounting plates 12. The bracket body 11 and the second mounting plate 13 are respectively provided with first buffer members 9.

[0079] This configuration is designed to utilize the first buffer 9 to cushion the collision between the first mass block 2 and the mounting bracket 1 during vibration, thereby better reducing vibration.

[0080] It should be understood that, in order to reduce the collision between the first mass block 2 and the mounting bracket 1, there is a certain gap between the surface of the first mass block 2 facing the bracket body 11 and the bracket body 11, and there is a certain gap between the surface of the first mass block 2 facing the second mounting plate 13 and the second mounting plate 13. The first buffer 9 is located within the gap. Specifically, the surface of the bracket body 11 facing the first mass block 2 is provided with the first buffer 9, and the surface of the second mounting plate 13 facing the first mass block 2 is provided with the first buffer 9. The number of first buffers 9 is not limited to one, but can also be two, three or more. The first buffer 9 can be a thin sheet structure and is fixed to the bracket body 11 or the second mounting plate 13 by means of adhesive or other methods.

[0081] In some embodiments, refer to Figure 1 and Figure 4 As shown, the first mass block 2 has a second buffer 10 on the cavity wall of the mounting cavity 21.

[0082] This configuration allows the second buffer 10 to cushion the collision between the second mass block 4 and the first mass block 2 during vibration, thereby better reducing vibration.

[0083] It should be noted that, in order to improve the vibration damping effect of the vibration absorber, the mounting cavity 21 on the first mass block 2 can be a through cavity 21 (or mounting slot) extending along a third direction, which is perpendicular to the first direction. The third direction can be the width direction of the first mass block 2, such as... Figure 1 and Figure 2 The double-headed arrow XX indicates this. When this shock absorber is applied to the rear door of a vehicle, the third direction can be the front-to-back direction of the vehicle.

[0084] It should be understood that the mounting cavity 21 of the first mass block 2 has two opposing cavity walls along a second direction, which is perpendicular to the first direction. The second direction can be the height direction of the first mass block 2, such as... Figure 1The bidirectional arrow ZZ indicates this. When the shock absorber is applied to the rear door of a vehicle, the second direction can be the height direction of the vehicle. To reduce the collision between the second mass block 4 and the first mass block 2, there is a certain gap between the two opposite surfaces of the second mass block 4 along the second direction and the cavity wall of the mounting cavity 21 of the first mass block 2. The second buffer 10 is located within this gap. Specifically, the mounting cavity 21 of the first mass block 2 is provided with the second buffer 10 on the two opposite cavity walls along the second direction. The number of second buffer 10 is not limited to one; it can be two, three, or more. The second buffer 10 can be a thin sheet structure, fixed to the cavity wall of the mounting cavity 21 of the first mass block 2 by means of bonding or other methods.

[0085] Furthermore, it should be noted that, in order to minimize the risk of collision between the first mass block 2 and the mounting bracket 1 during vibration, refer to... Figure 1 As shown, the two opposing surfaces of the first mass block 2 along the second direction can be configured as curved surfaces. The second direction is perpendicular to the first direction and can be the height direction of the first mass block 2, such as... Figure 1 The double-headed arrow ZZ indicates this. When the shock absorber is applied to the rear door of a vehicle, the second direction can be the height direction of the vehicle.

[0086] In some embodiments, refer to Figure 1 and Figure 3 As shown, the mounting bracket 1 includes a bracket body 11 and first mounting plates 12 connected to both ends of the bracket body 11 along the first direction. A first mass block 2 is connected between the two first mounting plates 12. Mounting feet 14 are respectively provided at both ends of the bracket body 11 along the first direction. The mounting feet 14 are used to fix and connect with the vibration-absorbing component.

[0087] With this configuration, by connecting the first mounting plates 12 to both ends of the support body 11 of the mounting bracket 1, an installation carrier is provided for the installation of the first mass block 2; by providing mounting feet 14 at both ends of the support body 11, the mounting feet 14 are fixedly connected to the vibration-absorbing component, thereby fixing the vibration absorber on the vibration-absorbing component so as to absorb the vibration of the vibration-absorbing component and achieve the purpose of vibration reduction.

[0088] Specifically, mounting holes can be provided on the mounting legs 14, and the vibration absorber can be fixed to the vibration-absorbing component by fasteners (such as fastening bolts) passing through the mounting holes and the vibration-absorbing component.

[0089] In specific implementations, the number of mounting feet 14 at each end is not limited to one; two or more can be provided as needed. For example, the bracket body 11 has two mounting feet 14 at each end along the first direction, and the two mounting feet 14 are respectively located at each end of the bracket body 11 along the second direction. The first direction can be as follows: Figure 1 As shown by the double-headed arrow YY, the second direction can be as follows: Figure 1 The bidirectional arrow ZZ is shown in the diagram. This arrangement increases the number of mounting feet 14, ensuring the reliability of the vibration absorber's fixed connection to the vibration-absorbing component via multiple mounting feet 14.

[0090] Furthermore, it should be noted that the vibration absorber provided in this application embodiment adopts a two-stage series vibration absorber. Compared with the traditional single-stage large vibration absorber, the total mass of the two-stage series vibration absorber can be made smaller, thereby avoiding the burden on the vibration-absorbing components (such as the tailgate). In addition, its layered vibration absorption design reduces the risk of resonance runaway and improves the stability of vehicle operation.

[0091] Other embodiments of this application provide a vehicle including a shock absorber as described in any of the above embodiments.

[0092] The vehicle provided in this application embodiment has the beneficial effects of the vibration absorber of any of the above embodiments because it includes the vibration absorber of any of the above embodiments, which will not be repeated here.

[0093] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0094] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vibration absorber, characterized in that, include: Mounting bracket (1); The first mass block (2) is connected to the mounting bracket (1) at both ends along the first direction by the first elastic damping member (3), and a mounting cavity (21) is formed on the first mass block (2). The second mass block (4) is located in the mounting cavity (21). The two ends of the second mass block (4) along the first direction are connected to the first mass block (2) through the second elastic damping member (5).

2. The vibration absorber according to claim 1, characterized in that, The first elastic damping element (3) is detachably connected to the first mass block (2) and the mounting bracket (1); And / or, the second elastic damping element (5) is detachably connected to the second mass block (4) and the first mass block (2), respectively.

3. The vibration absorber according to claim 1, characterized in that, The first mass block (2) has multiple first counterweight holes (22) for installing counterweights. And / or, the second mass block (4) has a plurality of second counterweight holes (41) for installing counterweights.

4. The vibration absorber according to claim 1, characterized in that, The mounting bracket (1) includes a bracket body (11) and first mounting plates (12) respectively connected to both ends of the bracket body (11) along the first direction. The first mass block (2) and the first elastic damping member (3) located at both ends of the first mass block (2) are both located between the two first mounting plates (12), and the first elastic damping member (3) is fastened to the corresponding end of the first mounting plate (12) by the first fastener (6).

5. The vibration absorber according to claim 4, characterized in that, The first elastic damping member (3) includes a first rubber body (31), a first connector (32), and a second connector (33), wherein the first connector (32) and the second connector (33) are respectively connected to the two ends of the first rubber body (31) along the first direction; The first mass block (2) has a first mounting hole (23), the first connector (32) is threadedly connected to the first mounting hole (23), the second connector (33) has an internal thread hole, and the first fastener (6) passes through the first mounting plate (12) and is connected to the internal thread hole.

6. The vibration absorber according to claim 1, characterized in that, The second elastic damping member (5) includes a second rubber body (51) and a first mounting block (52) and a second mounting block (53) respectively connected to the two ends of the second rubber body (51) along the first direction; The first mounting block (52) and the second mass block (4) are fastened together by the second fastener (7), and the second mounting block (53) and the first mass block (2) are fastened together by the third fastener (8).

7. The vibration absorber according to claim 6, characterized in that, The second mass block (4) has insertion slots (42) at both ends along the first direction. The first mounting block (52) is inserted into the insertion slots (42). The second fastener (7) passes through the second mass block (4) and the first mounting block (52) in a direction perpendicular to the first direction. The first mass block (2) has a limiting groove (24) on each of the two end walls of the mounting cavity (21). The second mounting block (53) is inserted into the limiting groove (24). The third fastener (8) passes through the first mass block (2) and the second mounting block (53) in a direction perpendicular to the first direction.

8. The vibration absorber according to any one of claims 1 to 7, characterized in that, The mounting bracket (1) includes a bracket body (11), first mounting plates (12) respectively connected to both ends of the bracket body (11) along the first direction, and a second mounting plate (13) connected to at least one side edge of the bracket body (11). The first mass block (2) is connected between the two first mounting plates (12). The bracket body (11) and the second mounting plate (13) are respectively provided with first buffer members (9). And / or, the first mass block (2) is provided with a second buffer (10) on the cavity wall of the mounting cavity (21).

9. The vibration absorber according to any one of claims 1 to 7, characterized in that, The mounting bracket (1) includes a bracket body (11) and first mounting plates (12) connected to both ends of the bracket body (11) along the first direction, and the first mass block (2) is connected between the two first mounting plates (12); The support body (11) is provided with mounting feet (14) at both ends along the first direction, and the mounting feet (14) are used to fix the vibration-absorbing component.

10. A vehicle, characterized in that, Including the vibration absorber as described in any one of claims 1 to 9.

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