Vibration proof apparatus

Abstract

The present invention relates to a vibration damping device, and more specifically, to a vibration damping device that supports a heavy object so that the heavy object vibrates by avoiding a specific frequency range. A vibration damping device according to an embodiment of the present invention includes a support member that supports a heavy object and distributes the load of the heavy object, a first vibration damping damper composed of a first material and in close contact with the support member to dampen the vibration of the heavy object, and a second vibration damping damper composed of a second material different from the first material and in close contact with the first vibration damping damper to dampen the vibration of the heavy object.

Description

Technology Field

[0001] The present invention relates to a vibration isolation device, and more specifically, to a vibration isolation device that supports a heavy object so that the heavy object vibrates while avoiding a specific frequency range. Background Technology

[0002] Unmanned autonomous vehicles can perform operations while moving through various regions. For autonomous driving, unmanned autonomous vehicles may be equipped with means to sense their surroundings, and based on the sensing results, they can move along a drivable path while avoiding obstacles.

[0003] Unmanned autonomous vehicles can drive by generating driving force through a motor or by generating driving force through a motor and an engine. Unmanned autonomous vehicles may be equipped with heavy objects, such as batteries and other electrical equipment, to drive the motor. If vibrations generated during driving are directly transmitted to the heavy objects, the heavy objects may be damaged. Accordingly, the heavy objects may be supported by means to prevent the transmission of external vibrations.

[0004] Meanwhile, the weight of the load may vary depending on the scale of the unmanned autonomous vehicle, and the natural frequency may be determined by the weight. If the load vibrates at its natural frequency due to external vibrations, the load may be severely damaged.

[0005] Accordingly, there is a need for an invention that supports a heavy object so that it vibrates while avoiding its natural frequency. Prior art literature

[0006] delete

[65535] U.S. Patent Publication US 6,511,038 (January 28, 2003) The problem to be solved

[0007] The problem that the present invention aims to solve is to provide a vibration damping device that supports a heavy object so that the heavy object vibrates while avoiding a specific frequency range.

[0008] The problems of the present invention are not limited to those mentioned above, and other unmentioned objectives will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0009] To achieve the above objective, a vibration damping device according to an embodiment of the present invention includes a support member that supports a heavy object and distributes the load of the heavy object, a first vibration damping damper composed of a first material and in close contact with the support member to mitigate the vibration of the heavy object, and a second vibration damping damper composed of a second material different from the first material and in close contact with the first vibration damping damper to mitigate the vibration of the heavy object.

[0010] The above support member, the first anti-vibration damper, and the second anti-vibration damper each include a hollow hole connected to one another.

[0011] The above support member, the first anti-vibration damper, and the second anti-vibration damper are stacked to support the above-mentioned heavy object.

[0012] The first anti-vibration damper and the second anti-vibration damper are melted and combined with each other.

[0013] At least one of the first anti-vibration damper and the second anti-vibration damper can be replaced according to the weight of the heavy object.

[0014] The first anti-vibration damper and the second anti-vibration damper optionally include a coupling projection and a coupling groove that are coupled to each other.

[0015] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0016] According to the vibration damping device of the present invention as described above, since it supports the heavy object so that the heavy object vibrates by avoiding a specific frequency range, it has the advantage of preventing the heavy object from being damaged by vibration.

[0017] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0018] FIG. 1 is an exploded perspective view of a dustproof device according to an embodiment of the present invention. FIG. 2 is a perspective view of a dustproof device according to an embodiment of the present invention. Figure 3 is a diagram illustrating the combined relationship between a heavy object and a vibration damping device. Figure 4 is a drawing illustrating the replacement of a vibration damper. Figure 5 is a drawing showing a vibration damper equipped with a coupling projection and a coupling groove. FIG. 6 is a drawing showing a vibration damper having a plurality of coupling protrusions and coupling grooves. Specific details for implementing the invention

[0019] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0020] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0021] FIG. 1 is an exploded perspective view of a dustproof device according to an embodiment of the present invention, and FIG. 2 is a perspective view of a dustproof device according to an embodiment of the present invention.

[0022] Referring to FIGS. 1 and 2, a vibration damping device (10) according to an embodiment of the present invention comprises a support member (300), a first vibration damping damper (100), and a second vibration damping damper (200).

[0023] The support member (300) can support a heavy object. The support member (300) may be provided in the form of a plate. Accordingly, the support member (300) may include two support surfaces facing opposite directions. The first support surface may face the heavy object, and the second support surface may face the first anti-vibration damper (100).

[0024] The support member (300) can distribute the load of a heavy object. The load of a heavy object input to the first support surface can be distributed to the entire area of ​​the second support surface and transmitted to the first anti-vibration damper (100). In order to support the heavy object and distribute the load, the support member (300) may be made of a material with relatively high hardness.

[0025] The first anti-vibration damper (100) is composed of a first material and performs the role of mitigating vibrations of a heavy object. In order to mitigate vibrations, the first anti-vibration damper (100) may be composed of a material having elasticity greater than a certain size. For example, the first anti-vibration damper (100) may be composed of neoprene, but the material of the first anti-vibration damper (100) is not limited to neoprene.

[0026] The first anti-vibration damper (100) can be in close contact with the support member (300). To this end, the first anti-vibration damper (100) may include a first contact surface capable of being in close contact with the second support surface of the support member (300). The entire area of ​​the second support surface of the support member (300) may be in close contact with the entire area of ​​the first contact surface of the first anti-vibration damper (100). A second contact surface may be provided on the opposite side of the first contact surface. The second contact surface may face the second anti-vibration damper (200).

[0027] The second anti-vibration damper (200) is composed of a second material and performs the role of mitigating vibrations of heavy objects. To mitigate vibrations, the second anti-vibration damper (200) may be composed of a material having elasticity of a certain magnitude or greater. In particular, in the present invention, the second material may be different from the first material. For example, the second anti-vibration damper (200) may be composed of expanded polyurethane. However, according to some embodiments of the present invention, the material of the second anti-vibration damper (200) may be composed of a material other than expanded polyurethane, and may be composed of the same material as the first anti-vibration damper (100). Hereinafter, the explanation will focus on the fact that the first material and the second material are different.

[0028] The support member (300), the first anti-vibration damper (100), and the second anti-vibration damper (200) may each include mutually connected hollow holes (410, 420, 430). A plurality of hollow holes (410, 420, 430) may be connected to form a coupling hole (400). The coupling hole (400) may be used to fix the support member (300), the first anti-vibration damper (100), and the second anti-vibration damper (200) to a support surface by passing through a coupling means such as a bolt. In the present invention, the support member (300), the first anti-vibration damper (100), and the second anti-vibration damper (200) are stacked to support a heavy object, and a single coupling means may sequentially pass through three hollow holes (410, 420, 430) to be coupled to the support surface. As the coupling means is coupled to the support surface, the anti-vibration device (10) can be fixed to the support surface.

[0029] The first anti-vibration damper (100) and the second anti-vibration damper (200) can be melted and joined together. After the first anti-vibration damper (100) made of the first material and the second anti-vibration damper (200) made of the second material are manufactured individually, the mutual contact surfaces of the first anti-vibration damper (100) and the second anti-vibration damper (200) can be melted and joined together. In this case, the first anti-vibration damper (100) and the second anti-vibration damper (200) can be operated as an integrated unit, and vibrations of heavy objects can be mitigated by composite elastic force.

[0030] Figure 3 is a diagram illustrating the combined relationship between a heavy object and a vibration damping device.

[0031] Referring to FIG. 3, the anti-vibration device (10) can support a heavy object (20).

[0032] A plurality of anti-vibration devices (10) may be provided to support a single heavy object (20). The plurality of anti-vibration devices (10) may be placed at different points on the heavy object (20) to support the heavy object (20). For example, three or more anti-vibration devices (10) may support different points on the heavy object (20).

[0033] The heavy object (20) can be attached to the body (30) of the movable. The movable may be a device capable of moving along a roadway, such as a vehicle. A vibration damping device (10) may be placed between the heavy object (20) and the body (30) of the movable.

[0034] The heavy object (20) and the anti-vibration device (10) can be simultaneously coupled to the body (30) of the movable body by means of a coupling means (BT). The coupling means (BT) may be provided in the form of a bolt. The heavy object (20) may be provided with a flange (21), and the flange (21) may include a through hole (22) through which a bolt passes. The coupling means (BT) can be coupled to the body (30) of the movable body after sequentially passing through the through hole (22) of the flange (21) and the coupling hole (400) of the anti-vibration device (10). Accordingly, the heavy object (20) and the anti-vibration device (10) can be fixed to the body (30) of the movable body.

[0035] Impact may occur to the moving body depending on the driving condition of the moving body and the condition of the driving path. For example, if gravel or small stones are distributed on the driving path, impact may occur to the moving body. If impact occurs to the moving body, the impact may be transmitted to the heavy object (20).

[0036] In the present invention, the mobile body may be an unmanned autonomous vehicle. The mobile body may drive by generating driving force through a motor or by generating driving force through a motor and an engine. The mobile body may be equipped with a heavy object (20), such as a battery and other electrical equipment, to drive the motor. If the magnitude of the impact generated during the driving of the mobile body exceeds a threshold, the battery or electrical equipment may be damaged. The anti-vibration device (10) may mitigate the impact generated during the driving of the mobile body and transfer it to the heavy object (20).

[0037] Additionally, the vibration damping device (10) according to an embodiment of the present invention can cause the heavy object (20) to vibrate by avoiding a specific frequency range. For example, the vibration damping device (10) can cause the heavy object (20) to vibrate by avoiding the natural frequency of the heavy object (20). The natural frequency of the heavy object (20) may vary depending on the weight of the heavy object (20). The first vibration damping damper (100) and the second vibration damping damper (200) may be determined according to the natural frequency of the heavy object (20), and the vibration damping device (10) may be manufactured. That is, at least one of the material, diameter, and thickness of the first vibration damping damper (100) and the second vibration damping damper (200) may be determined according to the natural frequency of the heavy object (20).

[0038] Figure 4 is a drawing illustrating the replacement of a vibration damper.

[0039] Referring to FIG. 4, at least one of the first anti-vibration damper (100) and the second anti-vibration damper (200) can be replaced according to the weight of the heavy object (20).

[0040] The first anti-vibration damper (100) and the second anti-vibration damper (200) may be provided separately without being joined by melting. In this case, the first anti-vibration damper (100) and the second anti-vibration damper (200) are separable and optionally replaceable.

[0041] FIG. 4 illustrates that the first anti-vibration damper (100) is replaced with a new first anti-vibration damper (101), but depending on the weight of the heavy object (20), the second anti-vibration damper (200) may be replaced, or both the first anti-vibration damper (100) and the second anti-vibration damper (200) may be replaced.

[0042] The weight (20) attached to the moving body may be replaced for reasons such as maintenance. The weight (20) before replacement and the weight (20) after replacement may have different weights, and thus the natural frequency may be different. Accordingly, the user may configure the vibration damping device (10) by replacing at least one of the first vibration damping damper (100) and the second vibration damping damper (200) according to the weight of the new weight (20). Accordingly, the natural frequency of the new weight (20) is avoided during the movement of the moving body, causing the weight (20) to vibrate, and damage to the weight (20) can be prevented.

[0043] FIG. 5 is a drawing showing a vibration damper having a coupling projection and a coupling groove, and FIG. 6 is a drawing showing a vibration damper having a plurality of coupling projections and coupling grooves.

[0044] Referring to FIGS. 5 and 6, the first anti-vibration damper (500, 700) and the second anti-vibration damper (600, 800) may optionally include a coupling projection (610, 710, 810) and a coupling groove (510, 720, 820) that are coupled to each other.

[0045] As illustrated in FIG. 5, the first anti-vibration damper (500) may include a coupling groove (510), and the second anti-vibration damper (600) may include a coupling projection (610). Alternatively, as illustrated in FIG. 6, the first anti-vibration damper (700) and the second anti-vibration damper (800) may include both a coupling groove (720, 820) and a coupling projection (710, 810). A coupling between the first anti-vibration damper (500, 700) and the second anti-vibration damper (600, 800) can be performed by inserting the coupling projection (610, 710, 810) into the coupling groove (510, 720, 820).

[0046] As the moving body moves, forces may be applied to the heavy object (20) in various directions. That is, while the moving body is moving, a first force parallel to the direction of travel of the moving body, a second force parallel to the ground and perpendicular to the direction of travel, and a third force perpendicular to the ground may be applied to the heavy object (20). The natural frequency of the aforementioned heavy object (20) may be the natural frequency with respect to the directions of the first force, the second force, and the third force.

[0047] If the first anti-vibration damper (500, 700) and the second anti-vibration damper (600, 800) exchange force with each other only in the direction of the weight of the heavy object (20), that is, in a direction perpendicular to the ground, vibration prevention by the first force and the second force may not be performed normally. A first anti-vibration damper (500, 700) and a second anti-vibration damper (600, 800) may optionally be provided with a coupling projection (610, 710, 810) and a coupling groove (510, 720, 820), and as the coupling projection (610, 710, 810) is inserted into the coupling groove (510, 720, 820) and the first anti-vibration damper (500, 700) and the second anti-vibration damper (600, 800) are coupled, anti-vibration by a first force and a second force may be performed. As the first anti-vibration damper (500, 700) and the second anti-vibration damper (600, 800) exchange the first force or the second force, anti-vibration by a first force and a second force may be performed.

[0048] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0049] 10: Dustproof device 20: Heavy objects 100, 101, 500, 700: First dustproof device 200, 600, 800: Second dustproof device 300: Support 400: Connection hole 510, 720, 820: Connecting grooves 610, 710, 810: Connecting protrusions

Claims

Claim 1 A vibration damping device comprising: a support member that supports a heavy object and distributes the load of the heavy object; a first vibration damper composed of a first material, in close contact with the support member, and dampening the vibration of the heavy object; and a second vibration damper composed of a second material different from the first material, in close contact with the first vibration damper, and dampening the vibration of the heavy object, wherein the first vibration damper and the second vibration damper optionally include a coupling projection and a coupling groove that are coupled to each other, and the first vibration damper and the second vibration damper are melted and coupled to each other, and the heavy object is coupled to the body of a movable body capable of moving along a driving path. Claim 2 In claim 1, the vibration damping device wherein the support member, the first vibration damping damper, and the second vibration damping damper each include a hollow hole connected to one another. Claim 3 In claim 1, the support member, the first anti-vibration damper, and the second anti-vibration damper are stacked to support the heavy object, forming an anti-vibration device. Claim 4 delete Claim 5 delete Claim 6 delete

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