Vibration absorber and vehicle

Abstract

The utility model relates to a vibration absorber and a vehicle. The vibration absorber comprises an elastic piece and a mass block. The elastic piece comprises a reed and a supporting part, the reed extends in the first direction, the reed is provided with a first end and a second end in the first direction, the first end of the reed is connected with the supporting part, the second end of the reed faces the surface of a base body to be subjected to vibration reduction, the mass block is connected to the supporting part, and the mass block is connected to the supporting part. The first direction and the surface of the base body to be subjected to vibration reduction intersect and are arranged at an angle. According to the vibration absorber, the reed is arranged to replace a rubber bushing and other structures, so that the structure of the vibration absorber is greatly simplified, the manufacturing cost is reduced, meanwhile, the reed is of a sheet-shaped structure, the reed extends in the first direction to be matched with the mass block to absorb vibration, the occupied space is small, the weight is small, and the light weight requirement of a vehicle is met.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle noise reduction, and in particular to a vibration absorber and a vehicle. Background Art

[0002] The vibration absorber in the related art is generally composed of a mass block and a rubber bushing, which occupies a large space, is heavy, has a complex structure and is costly. Utility Model Content

[0003] An object of the present disclosure is to provide a vibration absorber and a vehicle to solve the above-mentioned problems in the related art.

[0004] In order to achieve the above-mentioned object, one aspect of the present disclosure provides a vibration absorber, including an elastic member and a mass block;

[0005] The elastic member includes a spring leaf and a supporting portion, the spring leaf extends along a first direction, and in the first direction, the spring leaf has a first end and a second end, the first end of the spring leaf is connected to the supporting portion, and the second end of the spring leaf faces the surface of the substrate to be damped, the mass block is connected to the supporting portion, and the first direction intersects with the surface of the substrate to be damped and is arranged at an angle.

[0006] Optionally, there are multiple reeds, the first ends of the multiple reeds are all connected to the support portion, and the multiple reeds are arranged around an axis of the support portion extending in the first direction and at intervals.

[0007] Optionally, the number of the reeds is four, and the distance between two adjacent reeds is the same.

[0008] Optionally, in a second direction, the width of the reed is configured to be adjustable according to the frequency of vibration absorbed by the vibration absorber, and the second direction is configured to form an angle with the first direction.

[0009] Optionally, the elastic member further comprises a base, the second end of the spring leaf is connected to the base, and the base is used to be connected to the surface of the substrate to be damped.

[0010] Optionally, the mass block, the support portion and the base are all constructed as sheet structures parallel to the second direction, the mass block is surface-to-surface connected to the support portion, and the base is surface-to-surface connected to the surface of the substrate to be damped.

[0011] Optionally, in the second direction, the width of the base is greater than the width of the support portion, the base is configured as an annular structure, and the second end of the spring leaf is connected to an inner annular wall of the base.

[0012] Optionally, the mass block is detachably connected to the support portion, and the weight of the mass block is configured to be adjustable according to the frequency of vibration absorbed by the vibration absorber.

[0013] Optionally, there are multiple mass blocks, the thicknesses of the multiple mass blocks in the first direction are set to be different, and one of the mass blocks is bonded to the support portion; or,

[0014] The mass block includes one mass sheet or multiple mass sheets, the weight of each mass sheet is set to be the same, and the number of the mass sheets is set to be adjustable according to the frequency of the vibration absorbed by the vibration absorber, so that the total weight of the mass block changes and is set accordingly in a gradient, wherein when the number of the mass sheets is one, the mass sheet is bonded to the support portion, and when the number of the mass sheets is multiple, two adjacent mass sheets are bonded, and the mass sheet at one end is bonded to the support portion.

[0015] A second aspect of the present disclosure further provides a vehicle, comprising a vehicle door and the above-mentioned vibration absorber, wherein the vehicle door is provided as a base body to be vibration-damped, and the vibration absorber is connected to the vehicle door.

[0016] The above technical solution, through the provision of a reed, which is elastic and can replace structures such as rubber bushings, thereby greatly simplifying the structure of the vibration absorber and reducing manufacturing costs. At the same time, the reed is a sheet structure, which can be extended along the first direction to cooperate with the mass block to absorb vibrations. It occupies less space and has less weight, meeting the lightweight requirements of the vehicle. The mass block is used to change the effective frequency of the vibration absorber, and the low-frequency vibrations are absorbed by the vibration of the mass block, thereby reducing the noise generated by the low-frequency resonance.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0019] Figure 1 is a structural schematic diagram of a vibration absorber according to an embodiment of the present disclosure from one perspective;

[0020] Figure 2 is a schematic structural diagram of a vibration absorber according to an embodiment of the present disclosure from another perspective;

[0021] Figure 3 This is a diagram showing a vibration absorber in use according to one embodiment of the present invention.

[0022] Description of Reference Numerals

[0023] 1. elastic member, 11. reed, 12. supporting portion, 13. base;

[0024] 2. Mass block;

[0025] 100. Vibration absorber, 200. Car door. DETAILED DESCRIPTION

[0026] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0027] In the present disclosure, unless otherwise specified, "inside" and "outside" refer to the inside and outside of the relevant parts. In addition, the terms "first", "second" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0029] The front wall, floor, roof, opening and closing parts of the vehicle body and other large sheet metal structures usually have multi-order local modes below 100Hz. Once coupled with the powertrain excitation, road surface or chassis excitation, it will cause low-frequency roaring noise in the car. During the prototype trial production and test verification stage, for such problems, on the one hand, the excitation of the powertrain and chassis is reduced, and on the other hand, the body structure is optimized to avoid frequency or reduce the local response of the body, such as using vibration absorbers to absorb vibration and reduce low-frequency noise.

[0030] The vibration absorber in the related art is generally composed of a mass block and a rubber bushing, which occupies a large space, is heavy, has a complex structure and is costly.

[0031] For this reason, Figure 1 and Figure 2 As shown, one aspect of the present disclosure provides a vibration absorber, including an elastic member 1 and a mass block 2.

[0032] The elastic member 1 includes a spring leaf 11 and a support portion 12. The spring leaf 11 extends along a first direction. In the first direction, the spring leaf 11 has a first end and a second end. The first end of the spring leaf 11 is connected to the support portion 12, and the second end of the spring leaf 11 faces the surface of the substrate to be damped. The mass block 2 is connected to the support portion 12. The first direction intersects with the surface of the substrate to be damped and is arranged at an angle.

[0033] The support portion 12 is used to carry the mass block 2, and the reed 11 is elastic, and realizes elastic connection with the surface of the base to be damped, that is, elastic connection with the door 200 of the vehicle, and vibration absorption can be realized. The first direction is intersecting with the surface of the base to be damped and arranged at an angle. It can be understood that the second end of the reed 11 extends toward the surface of the base to be damped, that is, toward the door 200 of the vehicle, and the first end of the reed 11 extends away from the door 200 of the vehicle.

[0034] In the above technical solution, the reed 11 is arranged, which is elastic and can replace structures such as rubber bushings, thereby greatly simplifying the structure of the vibration absorber 100 and reducing the manufacturing cost. At the same time, the reed 11 is a sheet structure, which can be extended along the first direction to cooperate with the mass block 2 to absorb vibrations. It occupies less space and has less weight, meeting the lightweight requirements of the vehicle. The mass block 2 is arranged to change the effective frequency of the vibration absorber 100, and the low-frequency vibrations are absorbed by the vibration of the mass block 2, thereby reducing the noise generated by the low-frequency resonance.

[0035] Optionally, in one embodiment of the present disclosure, there are multiple reeds 11, the first ends of the multiple reeds 11 are connected to the support portion 12, and the multiple reeds 11 are arranged around the axis extending in the first direction of the support portion 12 and are arranged at intervals. By such an arrangement, the balance of the elastic connection can be improved, while the size of the reed 11 can be reduced, and the weight and cost of the vibration absorber 100 can be further reduced.

[0036] Among them, multiple reeds 11 are arranged in a surrounding manner to maintain force balance, so that the vibrations received by the support part 12 and the mass block 2 remain balanced. At the same time, multiple reeds 11 are arranged at intervals to reduce the size of a single reed 11, which can save costs. In some examples, multiple reeds 11 are respectively connected to the circumferential edge of the support part 12 to improve the connection strength and facilitate connection and assembly. In other examples, multiple reeds 11 are respectively connected to the side of the support part 12 away from the mass block 2.

[0037] Optionally, in another embodiment of the present disclosure, the number of the reed 11 is one, and the reed 11 is connected to the center of the support portion 12. The size of the reed 11 is relatively large, so that the connection strength between the support portion 12 and the vehicle door 200 can be ensured.

[0038] Optionally, in one embodiment of the present disclosure, the number of reeds 11 is four, and the spacing between two adjacent reeds 11 is the same. By setting it in this way, the connection strength and balance can be ensured to achieve vibration absorption, and the number and size of the reeds 11 can be reduced as much as possible to reduce weight and cost.

[0039] Optionally, in another embodiment of the present disclosure, the number of the reeds 11 is six or eight, etc., and the distance between two adjacent reeds 11 is the same.

[0040] Optionally, in one embodiment of the present disclosure, in the second direction, the width of the reed 11 is set to be adjustable according to the frequency of the vibration absorbed by the vibration absorber 100, and the second direction is set at an angle to the first direction. By setting it in this way, the elasticity of the reed 11 can be adjusted, and the frequency of the vibration absorbed by the vibration absorber 100 can also be adjusted.

[0041] In some examples, the second direction is perpendicular to the first direction, the first direction may be perpendicular to the surface of the substrate to be damped, and the second direction may be parallel to the surface of the substrate to be damped. The width of the reed 11 may be set as required, without too much restriction here. It should be noted that the width of the reed 11 may be directly manufactured during production according to the actual frequency of the vibration absorber 100 to absorb vibrations, and then the reed 11 of the corresponding width may be selected for assembly as required.

[0042] Optionally, in one embodiment of the present disclosure, the elastic member 1 further comprises a base 13, the second end of the leaf spring 11 is connected to the base 13, and the base 13 is used to connect to the surface of the substrate to be damped. The provided base 13 facilitates connection with the surface of the substrate to be damped, that is, connection with the vehicle door 200, thereby improving connection strength and ensuring stability.

[0043] It can be understood that the reed 11 is between the base 13 and the support portion 12, and the base 13 is arranged opposite to the support portion 12. In some examples, the base 13 can be bonded to the vehicle door 200 by adhesive.

[0044] Optionally, in one embodiment of the present disclosure, the mass block 2, the support portion 12 and the base 13 are all constructed as a sheet structure parallel to the second direction, the mass block 2 is connected to the support portion 12 in a surface-to-surface manner, and the base 13 is connected to the surface of the substrate to be damped in a surface-to-surface manner. By such an arrangement, the size in the first direction can be reduced, thereby reducing the space occupied in the first direction, and it can be well applied to vibration absorption in thinner positions, that is, vibration absorption of the vehicle door 200, and the mass block 2 is connected to the support portion 12 in a surface-to-surface manner, and the base 13 is connected to the surface of the substrate to be damped in a surface-to-surface manner, which can increase the connection area and improve the connection strength.

[0045] Optionally, in another embodiment of the present disclosure, the mass block 2, the support portion 12 and the base 13 can all be constructed as a block structure, the mass block 2 is surface-to-surface connected to the support portion 12, and the base 13 is surface-to-surface connected to the surface of the substrate to be damped.

[0046] Optionally, in one embodiment of the present disclosure, in the second direction, the width of the base 13 is greater than the width of the support portion 12, the base 13 is configured as an annular structure, and the second end of the leaf spring 11 is connected to the inner annular wall of the base 13. By such a configuration, it is beneficial to improve the connection strength between the base 13 and the surface of the substrate to be damped. The base 13 is configured as an annular structure, which can reduce the weight of the base 13 and the size of the support portion 12, thereby reducing weight and cost. It is understandable that since the size of the support portion 12 is smaller than that of the base 13, after the leaf spring 11 is connected, the leaf spring 11 is inclined at a certain angle, so that the force is directed toward the center position of the support portion 12, thereby ensuring the vibration absorption effect.

[0047] Optionally, in another embodiment of the present disclosure, in the second direction, the width of the base 13 may be consistent with the width of the support portion 12 , or the width of the support portion 12 may be greater than the width of the base 13 .

[0048] Optionally, in one embodiment of the present disclosure, the mass block 2 is detachably connected to the support portion 12, and the weight of the mass block 2 is set to be adjustable according to the frequency of the vibration absorbed by the vibration absorber 100. By setting it in this way, the mass block 2 can be removed, and the corresponding mass block 2 can be selected according to the needs, thereby the applicable scope and the vibration absorber 100 can be customized, and the adjustment is very flexible.

[0049] It is understandable that a series of mass blocks 2 with different weights can be manufactured, and then one of the mass blocks 2 is selected to be connected to the support portion 12 according to the frequency of the vibration absorbed by the vibration absorber 100 to achieve the absorption of the corresponding frequency vibration and reduce noise. In some examples, the frequency of low-frequency noise is mainly 42 Hz, so the vibration absorber 100 can be set to absorb vibrations with a natural frequency of 42 Hz.

[0050] Optionally, in an embodiment of the present disclosure, there are multiple mass blocks 2 , and the thicknesses of the multiple mass blocks 2 in the first direction are set to be different, and one of the mass blocks 2 is bonded to the support portion 12 .

[0051] Among them, the thickness of the mass block 2 is set to be different, so that the weight is different, and the width of the mass block 2 in the second direction is kept consistent, which can ensure the connection strength with the support part 12. In this way, the mass blocks 2 of different thicknesses can absorb vibrations of different frequencies and reduce noise of different frequencies. In some examples, the thickness difference between multiple mass blocks 2 can be kept consistent, so that a frequency gradient can be formed, that is, the gradient change is maintained for the frequency of the absorbed vibration, which can better meet the customized needs.

[0052] Optionally, in another embodiment of the present disclosure, the mass block 2 includes one mass sheet or multiple mass sheets, the weight of each mass sheet is set to be the same, and the number of mass sheets is set to be adjustable according to the frequency of vibration absorbed by the vibration absorber 100, so that the total weight of the mass block 2 changes and is set accordingly in a gradient, wherein when the number of mass sheets is one, the mass sheet is bonded to the support part 12, and when the number of mass sheets is multiple, two adjacent mass sheets are bonded, and the mass sheet at one end is bonded to the support part 12.

[0053] Among them, the mass pieces can be manufactured as standard parts, that is, each mass piece is consistent, and the shape and weight are consistent. In this way, when adjusting the weight of the mass block 2, you only need to adjust the number of mass pieces. The weight of the mass block 2 can be quickly changed by changing the number of mass pieces, which is more convenient to adjust and is also conducive to achieving a frequency gradient, that is, maintaining a gradient change for the frequency of the absorbed vibration. It can be understood that when the number of mass pieces changes, the total weight of the mass block 2 changes, which can achieve the absorption of vibrations of different frequencies and reduce noise of different frequencies. In some examples, the mass piece can be a circular gasket structure.

[0054] Optionally, in other examples, two adjacent mass sheets may be clamped and fixed by a clamping device and then connected to the support portion 12 .

[0055] Optionally, in another embodiment of the present disclosure, a connecting portion may be provided on the support portion 12, the connecting portion is connected to the mass block 2, the connecting portion may be a screw hole, and the mass block 2 may be connected and fixed by a bolt and the screw hole. The connecting portion may also be a clamping device, and the mass block 2 is clamped on the support portion 12 by the clamping device.

[0056] like Figure 3 As shown, the second aspect of the present disclosure further provides a vehicle, including a vehicle door 200 and the above-mentioned vibration absorber 100, wherein the vehicle door 200 is set as a base to be damped, and the vibration absorber 100 is connected to the vehicle door 200. In some examples, the vibration absorber 100 is connected to the inner side wall of the outer panel of the vehicle door 200. Of course, the vibration absorber 100 can also be installed on the body of the vehicle as needed.

[0057] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0058] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0059] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vibration absorber, characterized in that: including an elastic member and a mass block; The elastic member includes a spring leaf and a supporting portion, the spring leaf extends along a first direction, and in the first direction, the spring leaf has a first end and a second end, the first end of the spring leaf is connected to the supporting portion, and the second end of the spring leaf faces the surface of the substrate to be damped, the mass block is connected to the supporting portion, and the first direction intersects with the surface of the substrate to be damped and is arranged at an angle.

2. The vibration absorber according to claim 1, characterized in that: There are multiple reeds, the first ends of the multiple reeds are all connected to the support portion, and the multiple reeds surround the axis of the support portion extending in the first direction and are arranged at intervals.

3. The vibration absorber according to claim 2, characterized in that: The number of the reeds is four, and the distances between two adjacent reeds are the same.

4. The vibration absorber according to claim 1, characterized in that: In a second direction, the width of the reed is set to be adjustable according to the frequency of the vibration absorbed by the vibration absorber, and the second direction is set at an angle to the first direction.

5. The vibration absorber according to claim 1, characterized in that: The elastic member further comprises a base, the second end of the spring leaf is connected to the base, and the base is used to be connected to the surface of the substrate to be damped.

6. The vibration absorber according to claim 5, characterized in that: The mass block, the support part and the base are all constructed as sheet structures parallel to the second direction, the mass block is surface-to-surface connected to the support part, and the base is surface-to-surface connected to the surface of the base to be damped.

7. The vibration absorber according to claim 5, characterized in that: In the second direction, the width of the base is greater than the width of the support portion, the base is configured as an annular structure, and the second end of the leaf spring is connected to the inner annular wall of the base.

8. The vibration absorber according to any one of claims 1 to 7, characterized in that: The mass block is detachably connected to the support portion, and the weight of the mass block is configured to be adjustable according to the frequency of vibration absorbed by the vibration absorber.

9. The vibration absorber according to claim 8, characterized in that: There are multiple mass blocks, the thicknesses of the multiple mass blocks in the first direction are set to be different, and one of the mass blocks is bonded to the support part; or The mass block includes one mass sheet or multiple mass sheets, the weight of each mass sheet is set to be the same, and the number of the mass sheets is set to be adjustable according to the frequency of the vibration absorbed by the vibration absorber, so that the total weight of the mass block changes and is set accordingly in a gradient, wherein when the number of the mass sheets is one, the mass sheet is bonded to the support part, and when the number of the mass sheets is multiple, two adjacent mass sheets are bonded, and the mass sheet at one end is bonded to the support part.

10. A vehicle, characterized in that: The invention comprises a vehicle door and a vibration absorber as claimed in any one of claims 1 to 9, wherein the vehicle door is arranged as a base body to be subjected to vibration reduction, and the vibration absorber is connected to the vehicle door.

Images