CN219734088U - Column resonator - Google Patents

Abstract

The present utility model relates to a column resonator. The column resonator includes: the inner tube, there is limiting plate in one end of the inner tube; an outer tube arranged outside the inner tube and coaxial with the inner tube; the mass block is hollow conical, and the outer tube is pressed into the mass block through interference fit; a rubber body disposed between the inner tube and the outer tube; a first gap is formed between the bottom surface of the mass block and the limiting plate. The utility model provides a column resonator which has a compact overall structure and can prolong the service life.

Description

Column resonator

Technical Field

The utility model relates to the technical field of vehicle structural design and manufacture, in particular to a column resonator.

Background

When an automobile is in use by a user, various NVH (Noise, vibration, harshness, noise, vibration and harshness) problems exist. This is a comprehensive problem in measuring the quality of automobile manufacture, and it is most direct and superficial to the perception of the automobile user. The NVH problem of vehicles is one of the most concerned problems of large-vehicle manufacturing enterprises and parts enterprises in the International automotive industry. Statistics show that about 1/3 of the fault problems of the whole vehicle are related to the NVH problems of the vehicle, and about 20% of research and development cost of each large company is consumed in solving the NVH problems of the vehicle.

For NVH problems, the most common solution is to add resonators to absorb vibrations. The principle of absorbing vibration is that the mass block is driven to vibrate through the stress compression of rubber, and finally the vibration is attenuated until the whole vehicle cannot feel through the energy absorption of rubber.

However, if the vibration acceleration and vibration displacement near the wheels are large when the resonator is used in a severe environment, such as when the vehicle passes through a ditch or a ridge, the rubber of the resonator is easily damaged, and the vibration absorption performance of the resonator is reduced.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a column resonator which has a compact overall structure and can prolong the service life.

Specifically, the present utility model proposes a column resonator suitable for a vehicle, comprising:

the inner tube, there is limiting plate in one end of the said inner tube;

an outer tube arranged outside the inner tube coaxially with the inner tube;

the outer tube is pressed into the mass block through interference fit;

a rubber body disposed between the inner tube and the outer tube;

and a first gap is formed between the bottom surface of the mass block and the limiting plate.

According to one embodiment of the utility model, a crash pad is provided on the bottom surface of the mass.

According to one embodiment of the utility model, the width of the first gap is greater than 2mm and less than 5mm.

According to one embodiment of the utility model, a second gap is formed between the top of the mass and the inner tube.

According to one embodiment of the utility model, the width of the second gap is greater than 2mm and less than 5mm.

According to one embodiment of the utility model, the rubber body is vulcanized between the inner tube and the outer tube.

According to one embodiment of the utility model, the anti-collision pad is annular and is riveted and fixed with one end of the inner tube.

According to one embodiment of the utility model, the outer edge of the bottom surface of the mass extends axially along the inner tube to form a boss.

According to one embodiment of the utility model, the rubber body is provided with grooves along two sides of the axial direction of the inner tube.

According to one embodiment of the utility model, the resonator further comprises a bolt penetrating the inner tube and being fixed in threaded engagement with the inner tube.

According to the column resonator provided by the utility model, the first gap is formed between the bottom surface of the mass block and the limiting plate, and the vibration displacement of the mass block is limited through the first gap, so that the movement quantity of rubber is effectively reduced, the damage possibility of the rubber body is reduced, the vibration absorption performance of the resonator is maintained, and the service life is prolonged.

It is to be understood that both the foregoing general description and the following detailed description of the present utility model are exemplary and explanatory and are intended to provide further explanation of the utility model as claimed.

Drawings

The accompanying drawings, which are included to provide a further explanation of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the accompanying drawings:

fig. 1 shows a schematic structural diagram of a column resonator according to an embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

pillar resonator 100

Top cover outer plate 101

Arched beam 102

First reference hole 103

Second reference hole 104

Glue spreading groove 105

Electrophoresis exhaust table 106

Sinking cavity 107

Lightening holes 108

Intumescent glue 109

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model. Furthermore, although terms used in the present utility model are selected from publicly known and commonly used terms, some terms mentioned in the present specification may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present utility model is understood, not simply by the actual terms used but by the meaning of each term lying within.

Fig. 1 shows a schematic structural diagram of a column resonator according to an embodiment of the present utility model. As shown in the figure, a pillar resonator 100 suitable for a vehicle mainly includes an inner tube 101, an outer tube 102, a mass 103, and a rubber body 104, which are arranged substantially coaxially.

Wherein a stop plate 105 is provided at one end of the inner tube 101.

The outer tube 102 is arranged outside the inner tube 101.

The mass 103 is hollow and tapered, and the outer tube 102 is press-fitted into the mass 103 by interference fit. The mass block 103 and the outer tube 102 are sleeved on the inner tube 101 at intervals. The mass 103 may increase the weight of the pillar resonator 100 and facilitate the formation of the outer shape of the pillar resonator 100.

A rubber body 104 is arranged between the inner tube 101 and the outer tube 102.

The cone bottom surface of the mass block 103 is close to the limiting plate 105, and a first gap 106 is formed between the bottom surface of the cone bottom surface and the limiting plate 105. Since the column resonator 100 receives vibration energy from the axial direction and the radial direction (the axial direction and the radial direction are consistent with those of the inner tube 101), when the vibration energy is from the axial direction, the mass 103 moves to the position of the limiting plate 105 along with the compression vibration of the rubber body 104, and the displacement of the mass 103 along the axial direction is limited within the width range of the first gap 106. The axial displacement of the mass block 103 is limited, so that the movement quantity (displacement quantity) corresponding to the rubber body 104 can be effectively reduced, the damage possibility of the rubber body 104 is reduced, the fatigue resistance of the column resonator 100 is improved, and the service life is prolonged.

Preferably, a crash pad 107 is provided on the bottom surface of the mass 103. Since the mass 103 and the limiting plate 105 are both made of a rigid material, the crash pads 107 are provided for reducing possible vibration shocks between the mass 103 and the limiting plate 105. It is easy to understand that in the case where the crash pad 107 is provided, the first gap 106 is formed between the crash pad 107 and the stopper plate 105.

Preferably, the width of the first gap 106 is greater than 2mm and less than 5mm. The structure and the mass of the mass block 103 and the rigidity of the rubber body 104 are calculated according to the requirement of absorbing vibration energy, and the width of the first gap 106 is selected and determined so as to improve the fatigue resistance of the column resonator 100.

Preferably, a second gap 108 is formed between the top of the mass 103 and the inner tube 101. When the vibration energy comes from the radial direction, the mass 103 moves in the radial direction with the compression vibration of the rubber body 104, and the radial displacement is limited within the width of the second gap 108. The radial displacement of the mass block 103 is limited, so that the corresponding radial movement amount (displacement amount) of the rubber body 104 can be effectively reduced, the damage possibility of the rubber body 104 is reduced, and the fatigue resistance of the column resonator 100 is improved.

In addition, when the vibration energy deviates from the radial and axial directions, referring to fig. 1, the mass 103 rotates along the paper surface of fig. 1 as the rubber body 104 is subjected to compression vibration. It is easy to understand that, at this time, the mass block 103 is simultaneously limited by the first gap 106 and the second gap 108, so that a larger displacement of the rubber body 104 is avoided, and further, the vibration absorbing performance of the column resonator 100 is ensured.

Preferably, the width of the second gap 108 is greater than 2mm and less than 5mm. Similar to the first gap 106, the width of the second gap 108 is selected to be sized to promote fatigue resistance of the pillar resonator 100.

Preferably, the rubber body 104 is vulcanized integrally between the inner tube 101 and the outer tube 102.

Preferably, the crash pad 107 is ring-shaped and is riveted and fixed to one end of the inner tube 101 to form a stable structure.

Preferably, the bottom outer edge of the mass 103 extends axially along the inner tube 101, forming a boss 109. For the mass 103 of the same mass, the axial dimension thereof may be appropriately prolonged in order to reduce the radial dimension thereof. This design makes the overall structure of the pillar resonator 100 more compact, and is suitable for flexible arrangement in-vehicle space requirements.

Preferably, the rubber body 104 is provided with grooves 110 along two axial sides of the inner tube 101 for adjusting the axial and radial fixed frequency ratio.

Preferably, the post resonator 100 further includes a bolt (not shown) penetrating the inner tube 101 and being screwed to the inner tube 101. The post resonator 100 may be detachably mounted to various locations within the vehicle, such as a suspension frame location, by bolts for absorbing vibrational energy generated by the location during travel of the vehicle.

According to the column resonator provided by the utility model, the displacement of the mass block and the compression amount of the rubber body are effectively controlled through the first gap and the second gap, the rubber tearing and aging problems easily occurring in the long-term use process of the rubber body are effectively solved through controlling the displacement amount under the action of not influencing the vibration absorption of the whole column resonator, and the service life of the whole column resonator is prolonged.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present utility model without departing from the spirit and scope of the utility model. Therefore, it is intended that the present utility model cover the modifications and variations of this utility model provided they come within the scope of the appended claims and their equivalents.

Claims (10)

1. A pillar resonator adapted for use in a vehicle, comprising:

the inner tube, there is limiting plate in one end of the said inner tube;

an outer tube arranged outside the inner tube coaxially with the inner tube;

the outer tube is pressed into the mass block through interference fit;

a rubber body disposed between the inner tube and the outer tube;

and a first gap is formed between the bottom surface of the mass block and the limiting plate.

2. A pillar resonator as claimed in claim 1, wherein a crash pad is provided on the underside of the mass.

3. A post resonator as claimed in claim 1 or claim 2, wherein the width of the first gap is greater than 2mm and less than 5mm.

4. The post resonator of claim 1, wherein a second gap is formed between the top of the mass and the inner tube.

5. A pillar resonator as defined in claim 4, wherein said second gap has a width greater than 2mm and less than 5mm.

6. The post resonator of claim 1, wherein the rubber body is vulcanized between the inner tube and the outer tube.

7. The post resonator of claim 2, wherein the crash pad is ring-shaped and is riveted to one end of the inner tube.

8. A post resonator as defined in claim 1, wherein the outer edge of the bottom surface of the mass extends axially along the inner tube to form a boss.

9. The post resonator of claim 1, wherein the rubber body is fluted along two axial sides of the inner tube.

10. The post resonator of claim 1, further comprising a bolt threaded through the inner tube and secured in threaded engagement with the inner tube.