CN214083979U - Multi-frequency dynamic vibration absorption structure, seat and automobile - Google Patents
Multi-frequency dynamic vibration absorption structure, seat and automobile Download PDFInfo
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- CN214083979U CN214083979U CN202023333449.XU CN202023333449U CN214083979U CN 214083979 U CN214083979 U CN 214083979U CN 202023333449 U CN202023333449 U CN 202023333449U CN 214083979 U CN214083979 U CN 214083979U
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Abstract
The utility model provides a multi-frequency dynamic vibration absorption structure, belonging to the technical field of vehicles, comprising a plurality of springs which are arranged at intervals and at least one connecting rod which is respectively connected with the springs; at least one mass block is arranged on the connecting rod; two ends of each spring are respectively and fixedly arranged on the bottom surface of the seat cushion; wherein, at least one mass block and at least one spring can form a dynamic vibration absorber. The utility model also provides a seat and car that have above-mentioned multifrequency dynamic vibration absorbing structure. The utility model provides a multifrequency dynamic vibration absorbing structure can absorb the trivia vibration that each order excitation of tire and seat mode coupling resonance produced. Compared with the addition of a single absorber or a plurality of absorbers, the cost and the weight are reduced, the occupied space is reduced, and the requirement on space limitation is reduced.
Description
Technical Field
The utility model belongs to the technical field of the vehicle, more specifically say, relate to a multifrequency dynamic vibration absorption structure, seat and car.
Background
With the continuous maturity of automobile technology, the riding comfort of vehicles has become the key point of competition of various vehicle enterprises, and the seat of a vehicle is the most easily perceived part by drivers and passengers during driving, and how to reduce the seat Vibration is the key point for improving the performance of NVH (Noise, Vibration, Harshness Noise, Vibration and Harshness). The low-frequency vibration caused by the excitation of the tire during the running of the vehicle is easily coupled with the mode of the seat, so that the low-frequency trivial vibration is generated. In the prior art, aiming at low-frequency trivial vibration generated in the running process of a vehicle, the solution is as follows: firstly, controlling tire performance parameters to reduce excitation; secondly, matching the suspension performance to perform vibration attenuation; thirdly, a dynamic vibration absorber is added on the seat to absorb trivial vibration.
However, due to the limitations of tire processing technology and physical properties, excitation is reduced to a certain extent and cannot be reduced; because of the limit of the performance of stable operation, braking and the like, the matching period of the suspension is long, the cost is high, and sometimes, in order to ensure the stable operation and the braking performance, only the vibration performance can be sacrificed; the dynamic vibration absorbers can only absorb vibration generated by certain-order excitation of the tire, cannot absorb trivial vibration generated by various-order excitation of the tire and modal resonance of the seat, and have limited vibration absorbing capacity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multifrequency dynamic vibration absorption structure, aim at solving the technical problem that the dynamic vibration absorber among the prior art can not absorb the trivia vibration that each order of tire excitation and seat modal resonance produced.
In order to achieve the above object, the utility model adopts the following technical scheme: the multi-frequency dynamic vibration absorption structure comprises a plurality of springs which are arranged at intervals and at least one connecting rod which is respectively connected with the springs; at least one mass block is arranged on the connecting rod; two ends of each spring are respectively and fixedly arranged on the bottom surface of the seat cushion;
wherein, at least one mass block and at least one spring can form a dynamic vibration absorber.
As another embodiment of the present application, the spring is a serpentine damper spring of the seat cushion for damping vibration.
As another embodiment of the present application, the stiffness of the plurality of springs is different.
As another embodiment of the present application, the connecting rods are provided with at least two connecting rods, at least two connecting rods have at least two mass blocks in total, and the mass of at least two mass blocks is different.
As another embodiment of the present application, each of the links is connected to each of the springs by a respective yoke.
As another embodiment of this application, the connecting rod includes the body of rod that the multisection meets in proper order, adjacent two sections the body of rod passes through the clamp forms the connection.
As another embodiment of the present application, the rod body is a one-piece rod structure.
The utility model provides a multifrequency dynamic vibration absorbing structure's beneficial effect lies in: compared with the prior art, the utility model discloses multifrequency dynamic vibration absorption structure sets up many springs on the seat cushion, many springs are connected through at least one connecting rod, set up at least one quality piece on every connecting rod, wherein, one of them quality piece and one of them spring, one of them quality piece and many springs wherein, wherein a plurality of quality pieces and many springs homoenergetic form a dynamic vibration absorber wherein, every dynamic vibration absorber corresponds the vibration that absorbs the excitation of certain order of tire and produce, consequently this multifrequency dynamic vibration absorption structure can absorb the trivia details vibration that each order of tire excitation and seat attitude coupling resonance produced. Compared with the addition of a single absorber or a plurality of absorbers, the cost and the weight are reduced, the occupied space is reduced, and the requirement on space limitation is reduced.
The utility model also provides a seat, including foretell multifrequency dynamic vibration absorbing structure.
The utility model also provides a car, including foretell seat.
The utility model provides a beneficial effect of seat, car is the same with foretell multifrequency dynamic vibration absorbing structure's beneficial effect, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multi-frequency dynamic vibration absorbing structure according to an embodiment of the present invention.
In the figure: 1. a spring; 11. a first spring; 12. a second spring; 13. a third spring; 2. a connecting rod; 21. a first link; 22. a second link; 3. a mass block; 31. a first mass block; 32. a second mass block; 33. a third mass block; 4. clamping a hoop; 5. a seat cushion.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a multi-frequency dynamic vibration absorbing structure according to the present invention will now be described. The multi-frequency dynamic vibration absorption structure comprises a plurality of springs 1 which are arranged at intervals and at least one connecting rod 2 which is respectively connected with the springs 1; the connecting rod 2 is provided with at least one mass block 3; two ends of each spring 1 are respectively and fixedly arranged on a seat cushion 5; wherein, at least one mass block 3 and at least one spring 1 can form a dynamic vibration absorber.
A dynamic vibration absorber is a device that absorbs vibration energy of an object using a resonance system to reduce the vibration of the object. The principle is that a mass spring resonance system is added on a vibrating object, and the reaction force generated by the additional system during resonance can reduce the vibration of the vibrating object. The dynamic vibration absorber is particularly useful when the excitation force is mainly single frequency or the frequency is very low, and a general vibration isolator is not suitable. A series of dynamic vibration absorbers are added, and vibration with different frequencies can be offset.
The utility model discloses owing to set up many springs 1 on seat cushion 5, many springs 1 are connected through at least one connecting rod 2, set up at least one quality piece 3 on every connecting rod 2, wherein, one of them quality piece 3 and one of them spring 1, one of them quality piece 3 and many spring 1 wherein, wherein a plurality of quality pieces 3 and one of them spring 1, wherein a plurality of quality pieces 3 and many spring 1 homoenergetic form a dynamic vibration absorber wherein, every dynamic vibration absorber corresponds the vibration that absorbs the excitation of certain order of tire and the coupling of certain order mode of seat and produce, consequently this multifrequency dynamic vibration absorption structure can absorb the triquette vibration that each order of tire excitation and each order mode resonance of seat produced. Compared with the addition of a single absorber or a plurality of absorbers, the cost and the weight are reduced, the occupied space is reduced, and the requirement on space limitation is reduced.
In order to further reduce the cost and the occupied space of the dynamic vibration absorbing structure, please refer to fig. 1, as a specific implementation manner of the embodiment of the present invention, the spring 1 is a serpentine vibration absorbing spring for absorbing vibration on the seat cushion 5. The serpentine-shaped damper spring is a component which is already assembled on the seat cushion 5 in the prior art, and mainly functions to damp vibration. The snakelike damping spring that this embodiment has ingeniously utilized 5 seat cushions to have need not additionally to install the spring again for the spring 1 of power vibration absorber, has saved the cost greatly, can not increase seat weight yet to can not occupy the below space of 5 seat cushions.
In order to make each dynamic vibration absorber that at least one quality piece 3 and at least one spring 1 constitute inhale the vibration frequency all inequality, as the embodiment of the utility model discloses a concrete implementation mode, many springs 1's rigidity is different. In addition, the connecting rods 2 are provided with at least two, at least two connecting rods 2 are provided with at least two mass blocks 3 in total, and the mass of the at least two mass blocks 3 is different.
Specifically, taking the multi-frequency dynamic vibration absorber for a seat shown in fig. 1 as an example, three springs 1 are provided at intervals in the left-right direction of the seat, two connecting rods 2 are provided at intervals in the front-rear direction of the seat, one of the connecting rods 2 is provided with two mass blocks 3, and the other connecting rod 2 is provided with one mass block 3.
The three springs 1 in fig. 1 are named as a first spring 11, a second spring 12 and a third spring 13, the two connecting rods 2 are named as a first connecting rod 21 and a second connecting rod 22, and the three masses 3 are named as a first mass 31, a second mass 32 and a third mass 33.
The first spring 11, the second spring 12, and the third spring 13 have different rigidities, and the first mass 31, the second mass 32, and the third mass 33 have different masses. Taking the first spring 11 as an example, the first spring 11 can be combined with the first mass 31, the second mass 32 and the third mass 33 to form three dynamic vibration absorbers, or can be combined with every two masses 3 to form three dynamic vibration absorbers, or can be combined with three masses 3 to form one dynamic vibration absorber. Taking the first mass block 31 as an example, the first mass block 31 can be combined with the first spring 11, the second spring 12 and the third spring 13 to form three dynamic vibration absorbers, can also be combined with every two springs 1 to form three dynamic vibration absorbers, and can also be combined with three springs 1 to form one dynamic vibration absorber. In addition, every two springs 1 can be combined with every two masses 3 or three masses 3, and three springs 1 can be combined with three masses 3 to form the dynamic vibration absorber with different vibration absorbing frequencies.
The embodiment only needs to carry out the variable stiffness design to current snakelike damping spring according to each order excitation of tire and each order mode of seat to and increase quality piece 3 and carry out the variable mass design to quality piece 3, can form multifrequency dynamic vibration absorbing structure, simple structure, it is effectual to inhale the shake.
Referring to fig. 1, as a specific implementation manner of the embodiment of the present invention, each link 2 is connected to each spring 1 through a clamp 4. The clamp 4 is fixedly arranged on the connecting rod 2 and is connected with the spring 1 in a clamping mode. Specifically, each connecting rod 2 is provided with a plurality of hoops 4, the hoops 4 correspond to the springs 1 one by one, and the hoops 4 are used for fixing the connecting rods 2 on the springs 1.
Specifically, the connecting rod 2 may be a split structure, and includes a plurality of sections of rod bodies connected in sequence, and two adjacent sections of rod bodies are connected through a hoop 4. The connecting rod 2 may also be of unitary or one-piece construction.
The utility model also provides a seat, including foretell multifrequency dynamic vibration absorbing structure.
The utility model also provides a car, including foretell seat.
The utility model provides a seat and car, owing to set up many springs 1 on seat cushion 5, many springs 1 are connected through at least one connecting rod 2, set up at least one quality piece 3 on every connecting rod 2, wherein, one of them quality piece 3 and one of them spring 1, one of them quality piece 3 and many spring 1 wherein, wherein a plurality of quality pieces 3 and one of them spring 1, wherein a plurality of quality pieces 3 and many spring 1 homoenergetic form a dynamic vibration absorber wherein, every dynamic vibration absorber corresponds the vibration that absorbs certain order excitation of tire and certain order mode coupling of seat and produces, the NVH performance of whole car has been promoted.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The multi-frequency dynamic vibration absorption structure is characterized by comprising a plurality of springs which are arranged at intervals and at least one connecting rod which is respectively connected with the springs; at least one mass block is arranged on the connecting rod; two ends of each spring are respectively and fixedly arranged on the bottom surface of the seat cushion;
wherein, at least one mass block and at least one spring can form a dynamic vibration absorber.
2. The multi-frequency dynamic vibration absorbing structure of claim 1 wherein said springs are serpentine damper springs on said seat cushion for damping vibrations.
3. The multi-frequency dynamic vibration absorbing structure of claim 1 wherein a plurality of said springs are of different stiffness.
4. The multi-frequency dynamic vibration absorbing structure of claim 1 wherein said connecting rods are provided in at least two, at least two of said connecting rods having at least two of said masses, at least two of said masses having different masses.
5. The multi-frequency dynamic vibration absorbing structure of claim 1 wherein each of said links is connected to each of said springs by a respective clamp.
6. The multi-frequency dynamic vibration absorbing structure of claim 5 wherein said connecting rods comprise a plurality of sections of rods connected in series, adjacent sections of said rods being connected by said clips.
7. The multi-frequency dynamic vibration absorbing structure of claim 6 wherein said rod body is a unitary rod structure.
8. A seat comprising the multi-frequency dynamic vibration absorbing structure of any one of claims 1 to 7.
9. An automobile comprising the seat of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333449.XU CN214083979U (en) | 2020-12-31 | 2020-12-31 | Multi-frequency dynamic vibration absorption structure, seat and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333449.XU CN214083979U (en) | 2020-12-31 | 2020-12-31 | Multi-frequency dynamic vibration absorption structure, seat and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214083979U true CN214083979U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023333449.XU Active CN214083979U (en) | 2020-12-31 | 2020-12-31 | Multi-frequency dynamic vibration absorption structure, seat and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214083979U (en) |
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2020
- 2020-12-31 CN CN202023333449.XU patent/CN214083979U/en active Active
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