Vibration damping device, mounting frame, and apparatus

Abstract

To provide a vibration suppression device that suppresses vibration generated during operation of the device, a stand and an apparatus.SOLUTION: A vibration suppression device suppresses vibration generated in an object including a stand arranged on a reference surface of a floor, and an apparatus arranged on the stand, the stand also including a frame supporting the apparatus from below and a leg part for supporting the frame at a predetermined height, and the apparatus including a vibration source. The vibration control device comprises: a bundle fixed to a base fixed to the reference surface; a support part having a first surface that faces a side surface of the frame while being restrained by the bundle; and an elastic body arranged between the side surface of the frame and the first surface of the support part.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a vibration damping device, a mount, and an apparatus.

Background Art

[0002] When an apparatus including a vibration source is installed on a mount and operated, mechanical vibration exceeding a design-expected magnitude may occur. This mechanical vibration occurs, for example, when conditions for mechanical resonance are satisfied. As a method for suppressing mechanical vibration, a vibration damping device using a damper device is known. Many vibration damping devices are adjusted to suppress vibration energy of a specific frequency component by a structure formed by combining a damper device and the like. The suppression effect of a vibration damping device using such a damper device has frequency dependency. It is difficult to adapt the frequency dependency observed in the suppression effect of a vibration damping device using a damper device to changes in the frequency component of vibration. In the case of a vibration damping device using such a damper device, vibrations other than those of the specific frequency component for which a large suppression effect can be expected may not be suppressed. Incidentally, many air-conditioning machines constituting an air conditioning system are capable of adjusting the air volume of exhaust air discharged after adjusting the temperature. An air-conditioning machine adjusts its air volume, for example, by adjusting the speed of a motor that drives a blower fan. A motor or the like in an air-conditioning machine is an example of a vibration source. When the air volume is adjusted by such a method, the period or frequency component of vibration generated by the vibration source in the air-conditioning machine may change accordingly. As described above,

Prior Art Literature

Patent Literature

[0003]

Patent Literature 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] However, if the period or frequency component of vibration changes depending on the operating conditions of the device, even if a vibration damping device using a damper is installed inside or near the device, it may be difficult to maintain the vibration damping effect of that device, and the desired suppression effect may not be obtained.

[0005] This invention has been made in view of these circumstances, and aims to provide a vibration damping device, a mounting frame, and a device that suppress vibrations that occur during the operation of the device. [Means for solving the problem]

[0006] (1) A vibration damping device according to one aspect of the present invention is an object including a frame placed on a reference plane of the floor and a device placed on the frame, wherein the frame is configured to include a frame that supports the device from below and legs for supporting the frame at a predetermined height, and the vibration damping device suppresses vibrations occurring in an object in which a vibration source is included in the device, and comprises a bundle fixed to a base fixed to the reference plane, a support portion having a first surface that faces the side surface of the frame while being constrained by the bundle, and an elastic body disposed between the side surface of the frame and the first surface of the support portion. (2) In the vibration damping device according to one embodiment described above, the support portion includes a plate-shaped member having a first surface and a second surface on the back side of the first surface, wherein the second surface is fixed to the bundle. (3) In the vibration damping device according to one embodiment described above, the width in the creepage direction of the upper end of the first surface of the plate-shaped member is wider than the width in the creepage direction of the lower end of the first surface. (4) In the vibration damping device according to one embodiment described above, the frame includes a beam that forms the side surface of the frame, and the upper end of the first surface of the plate-shaped member is brought into contact with the beam via the elastic body which includes high-damping rubber. (5) In the vibration damping device according to one embodiment described above, both ends of the beam are connected to the legs of the support structure, the first surface is positioned opposite the beam at a position where the effect of suppressing the vibration of the beam is relatively large, and the elastic body is in contact with the beam and the first surface, respectively. (6) In the vibration damping device according to one embodiment described above, the elastic body applies a stress to the beam and the first surface in a direction that cancels out the change in the separation distance between the beam and the first surface. (7) In the vibration damping device according to one embodiment described above, the elastic body generates a stress that cancels out the force that causes the beam to translate in a direction along the first surface. (8) The vibration damping device according to one embodiment described above includes a fixing member that limits the distance between the plate-shaped member and the beam to a predetermined range. (9) In the vibration damping device according to one embodiment described above, the extension direction of the bundle of the support portion from the base is in the vertical direction or in a direction inclined at a predetermined angle with respect to the vertical direction. (10) One aspect of the present invention is a frame for supporting a device placed on a reference plane of a floor, the frame comprising: a frame for supporting the device from below; legs for supporting the frame at a predetermined height; a bundle fixed to a base fixed to the reference plane; a support portion having a first surface that faces the side surface of the frame while constrained by the bundle; and an elastic body disposed between the side surface of the frame and the first surface of the support portion. (11) One aspect of the present invention is a device comprising the frame described in (10) above and a vibration source disposed on the upper part of the frame. (12) In an apparatus according to one aspect of the present invention, the vibration source is a motor or an engine. [Effects of the Invention]

[0007] According to the present invention, vibrations that occur during the operation of the device can be suppressed. [Brief explanation of the drawing]

[0008] [Figure 1] This is a diagram illustrating an air conditioning system 100 to which a vibration damping device 1 according to the first embodiment of the present invention is applied. [Figure 2] This is a diagram illustrating a frame 2 equipped with a vibration damping device 1 according to the first embodiment. [Figure 3] This is a diagram showing the configuration of the vibration damping device 1 according to the embodiment. [Figure 4] It is a diagram for explaining an air conditioning system 100Z of a comparative example. [Figure 5] It is a diagram for explaining the vibration damping effect of the embodiment. [Figure 6] It is a diagram for explaining the vibration damping effect of the embodiment. [Figure 7] It is a diagram for explaining the vibration damping effect of the embodiment. [Figure 8] It is a configuration diagram of a support portion 10A according to a second embodiment. MODE FOR CARRYING OUT THE INVENTION

[0009] Hereinafter, a vibration damping device, a gantry, and an air conditioning system according to embodiments of the present invention will be described with reference to the accompanying drawings.

[0010] FIG. 1 is a diagram for explaining an air conditioning system 100 to which the vibration damping device 1 according to the first embodiment is applied. FIG. 2 is a diagram for explaining a gantry 2 provided with the vibration damping device 1 according to the first embodiment.

[0011] The air conditioning system 100 is configured including an air conditioning equipment 3 (air conditioner) for maintaining air in a server room where ICT devices and the like are installed at an appropriate temperature.

[0012] For example, the upper surface of the slab of a floor used in this server room is taken as the reference surface of the floor. In the server room, a raised floor system is arranged on the reference surface of the floor. The lower space of the raised floor is used not only for wiring, but also for delivering cold air to the upper space (room) of the floor panels of the raised floor system partitioned by the floor panels of the raised floor system by filling the lower space with cold air through the air conditioning system 100. For example, in the server room shown in FIG. 1, two pieces of air conditioning equipment 3 of the air conditioning system 100 and ICT devices and the like are respectively arranged. The air conditioning equipment 3 is arranged on the gantry 2.

[0013] A comparative example will be briefly described below with reference to FIG. 4. FIG. 4 is a diagram for explaining an air conditioning system 100Z of the comparative example. The air conditioning system 100Z of the comparative example differs from the aforementioned air conditioning system 100 only in that a frame 2Z is provided in place of the frame 2 of the air conditioning system 100. This frame 2 is not provided with a vibration damping device 1 which will be described later.

[0014] The air conditioning equipment 3 is an example of an object to be damped. The air conditioning equipment 3 includes, as vibration sources, for example, a compressor, a fan, and motors associated therewith. Illustration of the vibration sources is omitted. There are no restrictions on the type, number, or size of vibration sources in the air conditioning equipment 3 or in the target server room.

[0015] When the air conditioning equipment 3 of the air conditioning system 100Z is placed on the frame 2Z and the air conditioning system 100Z is operated, mechanical vibration may occur in the air conditioning equipment 3 and the like depending on the operating conditions. When such mechanical vibration occurs, it propagates through the slab of the floor surface FL or the like, which may cause each device in the server room to vibrate or generate rattling noise due to vibration.

[0016] In contrast, the air conditioning system 100 of the present embodiment is configured to suppress vibration as occurs in the comparative example described above by using the frame 2 provided with the vibration damping device 1. Details of the present embodiment will be sequentially described below.

[0017] As shown in FIG. 2, the object subject to vibration damping in the embodiment includes the frame 2 disposed on a floor surface FL (floor reference surface) and the air conditioning equipment 3 (device) disposed on the frame 2.

[0018] The frame 2 is configured to include a frame body 21 that supports the air conditioning equipment 3 from below and a plurality of legs 22 that support the frame body 21 at a predetermined height. The frame 21 forming the base 2 includes four beams, which are arranged in a rectangle to form a base. Both ends of each beam are connected to the legs 22 of the base 2. Each lower end of the legs 22 has an adjuster for height adjustment. This compensates for the tilt and unevenness of the floor surface FL, ensuring the horizontality of the frame 21.

[0019] For example, each beam and leg 22 of the frame 21 is formed from an L-shaped angle (angle steel). One side of the L-shaped angle forming each beam becomes part of the upper surface of the frame 21, and the other side of the L-shaped angle, that is, the side of each beam, forms the side S of the frame 21. The support structure 2 is formed by combining the above-mentioned steel materials. Such a support structure 2 has the strength to support the weight of the air conditioning equipment 3. The frame 2 within the above range may be equivalent to frame 2Z of the comparative example.

[0020] The mounting frame 2 of this embodiment further includes a vibration damping device 1. Details of this device will be described later.

[0021] Air conditioning unit 3 includes part of a heat pump. When air conditioning unit 3 is operated, the compressor circulates the refrigerant. By circulating the refrigerant, the compressor transfers heat from the intake air to the refrigerant flowing through the heat exchanger. Air conditioning unit 3 operates its built-in fan to blow the intake air into the heat exchanger, thereby outputting exhaust air (cool air) at a temperature lower than the intake air temperature. For example, the bottom of the housing of the air conditioning unit 3 has an opening (not shown) through which cold air is discharged towards the floor. This cold air flows through the space formed beneath the floor panel of the double floor system and passes through slits provided in the floor panel in an upward direction.

[0022] In the case of the configuration in which the air conditioning equipment 3 is placed on the frame 2Z as in the comparative example (Figure 4) mentioned above, even if the frame 2Z has sufficient strength to support the weight of the air conditioning equipment 3, it may resonate with vibrations emitted by the air conditioning equipment 3 when it is in operation.

[0023] Therefore, in this embodiment, as shown in Figure 1, a vibration damping device 1 is used to suppress mechanical vibrations occurring in the air conditioning equipment 3 (object) containing the vibration source. The details of this will be explained below.

[0024] Figure 3 is a diagram showing the configuration of the vibration damping device 1 according to the embodiment. The vibration damping device 1 comprises at least a support portion 10 and an elastic body 15. The vibration damping device 1 may further comprise a fixing member 14. This fixing member 14 may be part of the frame 2.

[0025] The support section 10 comprises, for example, a base 11, a bundle 12, and a plate-shaped member 13.

[0026] For example, the base 11 of the support section 10 includes a base plate made of steel. The base plate is fixed to the floor surface FL by anchor bolts or the like. A support beam 12 is fixed to the upper surface of the base 11. The connection between the base 11 and the support beam 12 may be made by welding.

[0027] The beam 12 in this embodiment is formed from angle steel (L-shaped angle). The extension direction of the beam 12 is aligned with the direction normal to the upper surface of the base 11. For example, if the base 11 is positioned horizontally, the beam 12 will extend in the vertical direction (+Z direction). For example, the size of the angle steel is L-75×75×6. For example, the orientation of the base 11 can be adjusted so that the first side of the angle steel of the beam 12 is oriented away from the frame 2 and the air conditioning equipment 3 (-Y direction), and its second side is oriented along the side of the housing of the air conditioning equipment 3 (X direction), thereby aligning the position of the base 11.

[0028] The plate-shaped member 13 has a surface wider than the width of the beam 12 (the second side of the angle steel). The surface of the plate-shaped member 13 is fixed along the second side of the beam 12. The method of fixing the surface of the plate-shaped member 13 to the beam 12 may be welding or bolting.

[0029] The plate-shaped member 13 of this embodiment has a first surface 131 and a second surface 132 on the back side of the first surface 131. The second surface 132 of the plate-shaped member 13 is fixed to the bundle 12. The creepage width of the upper end of the first surface 131 of the plate-shaped member 13 is formed to be wider than the creepage width of the lower end of the first surface 131. In this shape, the airflow near the reference surface of the floor is higher than the airflow near the floor panel. In this shape, the airflow near the reference surface of the floor is higher than the airflow near the floor panel. In this shape, the section facing the side surface S of the frame 21 can be widened.

[0030] The support portion 10 is configured to have a first surface 131 that faces the side surface S of the frame 21 while being constrained by the bundle 12. An elastic body 15 is positioned between the side surface S of the frame 21 and the first surface 131 of the support portion 10. For example, the upper end of the first surface 131 of the plate-shaped member 13 is in contact with the beam via an elastic body 15 containing high-damping rubber.

[0031] The elastic body 15 includes, for example, high-damping rubber. As a result, the elastic body 15 deforms in response to the applied stress, and this deformation dampens the stress. The elastic body 15 is sandwiched between two opposing surfaces, and deforms due to compressive forces, tensile forces, etc., applied from each of the two opposing surfaces, causing the thickness of the elastic body 15 to change. Furthermore, when the two opposing surfaces move in opposite directions along the surfaces, shear deformation occurs in the elastic body 15. The elastic body 15 absorbs energy by deforming, thereby suppressing the movement of the two surfaces. Furthermore, the elastic body 15 deforms in such a way that it generates a stress that counteracts the force that translates the beam in the direction along the first surface 131 (X direction). In addition, the elastic body 15 applies a stress to the beam and the first surface 131 in a direction that counteracts the change in the separation distance between the beam and the first surface 131.

[0032] By making the support section 10 an inverted triangular shape with an increased surface area for absorbing vibration energy using the elastic body 15, it becomes possible to efficiently absorb vibration energy.

[0033] Referring to Figure 7, the fixing of the air conditioning unit 3 to the mounting frame 2 will be explained. Figure 7 is a diagram illustrating the fixing of the air conditioning unit 3 to the mounting frame 2. Figure 7 shows a model of the fixing structure of the air conditioning unit 3 to the frame 2. The bottom surface of the housing of the air conditioning unit 3 is fixed to the frame 2 by several bolts 3B. The position of the frame 2 side is within the upper surface of the frame 21 and is often relatively close to each leg 22. This position relatively close to each leg 22 means, for example, within a range of 1 / 4 of the length from each beam end when the longitudinal direction of each beam is divided into 4 parts. The above shows 4 divisions as an example, but there is no limit to this and it is also possible to divide into 6 parts, 8 parts, or N parts (N is an integer of 3 or more). In this case, the position relatively close to each leg 22 means within a range of 1 / N of the length from each beam end when the longitudinal direction of each beam is divided into N parts. Furthermore, an elastic body 23 may be provided between the bottom surface of the housing of the air conditioning unit 3 and the top surface of the frame 21. When each beam is divided into N sections in the longitudinal direction (where N is an integer of 3 or more), this elastic body 23 is positioned outside a range of 1 / N from each beam end. Because this elastic body 23 is provided between the bottom surface of the housing of the air conditioner 3 and the top surface of the frame 21, vibrations from the bottom surface of the housing of the air conditioner 3 are less likely to be transmitted to the top surface of the frame 21. However, because this elastic body 23 is elastic, a restoring force may be generated in the elastic body 23 when it is compressed, for example. Furthermore, this restoring force may exacerbate mechanical vibration. This effect will be explained below. In the embodiment shown in Figure 7, the upward displacement of the beam of the frame 21 at the top of the support structure 2 due to vibration is limited by the bottom surface of the housing of the air conditioning unit 3 and the elastic body 23 provided between them. On the other hand, the downward displacement of the beam of the frame 21 due to vibration is limited at the position of the legs 22, but if the vibration damping device 1 is not provided, there is nothing to limit the displacement at positions other than the position of the legs 22 and the vibration damping device 1. For this reason, it may be difficult to suppress the vibration of the beam of the frame 21.

[0034] It is preferable to design or experimentally determine a position where the effect of suppressing the vibration of each beam of the frame 21 is relatively large, and then place the vibration damping device 1 at that position, so that the beam and the first surface 131 face each other via the elastic body 15. In this case, the elastic body 15 is in contact with each beam of the frame 21 and the first surface 131, respectively.

[0035] The vibration damping effect of the embodiment will be explained with reference to Figures 5 and 6. Figures 5 and 6 are diagrams illustrating the vibration damping effect of the embodiment.

[0036] Figure 5(a1) is a side view of the comparative example air conditioning system 100Z, and (b1) is a front view of the same system. Figure 5(a2) is a side view of the air conditioning system 100 of the embodiment, and (b1) is a front view of the same. The same applies to Figure 6 as to Figure 5.

[0037] Figure 5 shows a model of a typical mechanical vibration. In the comparative example shown in Figure 5 (a1) and (b1), when mechanical resonance occurs, large displacements may occur in the parts of each beam of the support structure 2 that are prone to vibration. The components of this vibration include components in all directions. For example, the vibration shown in the comparative example of Figure 5 (a1) and (b1) illustrates the case where vertical vibration occurs near the midpoint in the longitudinal direction of each beam. The mechanical vibration seen in this comparative example generates kinetic energy that vibrates, for example, vertically, near the midpoint in the longitudinal direction of each beam. This vibration due to kinetic energy is transmitted to the floor surface FL through the legs 22, causing the building to vibrate. In contrast, in the embodiments shown in Figures 5(a2) and (b2), the vibration damping device 1 controls the movement of the sides of each beam, thereby reducing the amplitude of vertical vibrations near the midpoint in the longitudinal direction of each beam. By shearing, the elastic bodies 15 and 16 absorb the kinetic energy of vertical vibrations near the midpoint in the longitudinal direction of each beam, thereby suppressing the mechanical vibrations seen in the comparative example and reducing vibrations transmitted to the floor surface FL through the legs 22. Although there is a path through which the vibrations of each beam are transmitted to the floor surface FL via the support 10 through the elastic bodies 15 and 16, the kinetic energy transmitted through this path is relatively small because it is consumed by the shearing deformation of the elastic bodies 15 and 16. Furthermore, a phase difference is created with respect to the phase of the vibrations transmitted through the legs 22, which suppresses the amplitude of vibrations at the floor surface FL. As described above, when energy is absorbed by the elastic bodies 15 and 16, the frequency dependence can be reduced, making it possible to adapt to a wider range of vibration frequency components.

[0038] Figure 6 shows a model of another typical mechanical vibration. In the comparative example shown in Figure 6 (a1) and (b1), when mechanical resonance occurs, the air conditioning unit 3 may vibrate in a way that translates horizontally, resulting in a large displacement. In contrast, in the embodiments shown in Figures 6(a2) and (b2), the vibration damping device 1 controls the horizontal vibration of the top of the frame 2, thus reducing the amplitude of the longitudinal vibration of each beam.

[0039] Furthermore, it is advisable to design or experimentally determine a position where the effect of suppressing the vibration of each beam of the frame 21 is relatively large. The vibration damping device 1 is then placed at that position, and the beam and the first surface 131 are positioned opposite each other via the elastic body 15. In this case, it is advisable that the elastic body 15 is in contact with each beam of the frame 21 and the first surface 131, respectively.

[0040] According to the above embodiment, the vibration damping device 1 suppresses vibrations occurring in an object including a frame 2 placed on a reference plane of the floor and an air conditioning unit 3 (device) placed on the frame 2. The frame 2 of the object is composed of a frame 21 that supports the air conditioning unit 3 (device) from below and legs 22 for supporting the frame 21 at a predetermined height. The air conditioning unit 3 (device) includes a vibration source. The vibration damping device 1 comprises a bundle 12 fixed to a base 11 fixed to the reference plane, a support part 10 having a first surface 131 that faces the side surface of the frame while constrained by the bundle 12, and an elastic body 15 disposed between the side surface of the frame 21 and the first surface 131 of the support part 10. Such a vibration damping device 1 can suppress vibrations that occur during the operation of the air conditioning unit 3 (device).

[0041] Furthermore, the extension direction of the bundle 12 of the support section 10 from the base 11 is in the vertical direction. Furthermore, a portion of the elastic body 15 is bonded to the first surface 131 of the support portion 10, and a portion of the elastic body 15 is bonded to the side of the frame 21 (the side of the beam of the support structure 2). In normal conditions, the first surface 131 of the support portion 10 and the side surface of the frame 21 (the side surface of the beam of the mounting frame 2) are not in direct contact. It is preferable to configure the elastic body 15 so that, even if the elastic body 15 deforms due to pressure from the first surface 131 of the support part 10 and the side surface of the frame 21 (the side surface of the beam of the support structure 2) when there is vibration and the elastic body 15 is under pressure, the first surface 131 of the support part 10 and the side surface of the frame 21 (the side surface of the beam of the support structure 2) do not come into contact.

[0042] The vibration damping device 1 of the above embodiment can also be added to the frame 2 of the comparative example later. In this case, the mechanical vibrations that occur in the configuration of the comparative example can be suppressed by the added vibration damping device 1. This allows the vibration damping device 1 to be installed without stopping the operating air conditioning equipment 3.

[0043] Furthermore, while countermeasures using energy-absorbing vibration damping materials (such as insulating rubber) are difficult to implement on operational equipment after the fact, the method of this embodiment can address this issue.

[0044] As described above, the frame 2 of the embodiment is placed on the floor surface FL and supports the air conditioning equipment 3 (device) located above it. The frame 2 may include a frame 21 that supports the air conditioning equipment 3 from below, legs 22 for supporting the frame 21 at a predetermined height, a support 12 fixed to a base 11 fixed to the floor surface FL, a support portion 10 having a first surface 131 that faces the side surface S of the frame 21 while being restrained by the support 12, and an elastic body 15 positioned between the side surface S of the frame 21 and the first surface 131 of the support portion 10.

[0045] As shown in the above embodiment, the structure of the vibration damping device 1 has no moving parts and requires relatively few components. For example, it can be constructed more simply than AMD-TMD.

[0046] (modified version) In the vibration damping device 1 of the first embodiment described above, the distance between the vibration damping device 1 and the frame 21 of the mounting base 2 may become large. A modified example applicable to this will be described below. This modified example is one way to enhance the effectiveness of vibration damping device 1.

[0047] Relationship between the plate-shaped member 13 and the beam of the frame 21: As shown in Figure 3 above, the vibration damping device 1 may be configured to include a fixing member 14 and an elastic body 16. For example, an elastic body 16 is provided between the fixing member 14 and the plate-shaped member 13. The fixing member 14 presses the plate-shaped member 13 against the beam of the frame 21 via the elastic body 15 and the elastic body 16.

[0048] The fixing member 14 is a guide that suppresses relative movement between the plate-shaped member 13 and the side surface S (beam surface) of the frame 21, and presses the plate-shaped member 13 against the side surface S of the frame 21 via the elastic body 15 and the elastic body 16. For example, the fixing member 14 includes a rod-shaped plate. The rod-shaped plate is formed by bending twice in a wave-like manner. The bending may be along a straight line perpendicular to the extension direction of the fixing member 14. A fixing hole may be provided in a part of the rod-shaped plate that makes up the fixing member 14. The fixing member 14 is fixed to the beam by bolts passing through the fixing hole.

[0049] The vibration damping device 1 configured in this way can suppress mechanical vibrations occurring in the frame 2 by suppressing the displacement of the plate-shaped member 13 of the support part 10 relative to the beam of the frame 2. By providing this fixing member 14 (pressure plate), appropriate pressure can be applied to the elastic body 15 of the high-damping rubber.

[0050] (Second embodiment) A second embodiment will be described. In the vibration damping device 1 of the first embodiment described above, the support portion 10 had a bundle 12 extending substantially vertically (+Z direction) on the upper part of the plate. The vibration damping device 1A of the second embodiment includes a support portion 10A that replaces the support portion 10 of the first embodiment.

[0051] Figure 8 is a configuration diagram of the vibration damping device 1A according to the second embodiment. The vibration damping device 1A includes a support part 10A in place of the support part 10 of the vibration damping device 1.

[0052] The support section 10A comprises, for example, a base 11A, a beam 12A, and a plate-shaped member 13A. Like beam 12, beam 12A is formed from angle steel (L-shaped angle). As a result, the extension direction of beam 12A is inclined with respect to the vertical direction (+Z direction).

[0053] The base 11A of the support section 10A is positioned relatively close to the first leg 22 of the frame 2. In this case, the support beam 12A extends to the vicinity of the second leg 22 of the frame 2 and has a length that reaches the side of the frame 21. A plate-shaped member 13A is provided on the support beam 12A in place of the plate-shaped member 13.

[0054] According to the above embodiment, the extension direction of the bundle 12A of the support portion 10A from the base 11A is in a direction that is inclined at a predetermined angle with respect to the vertical direction. The vibration damping device 1A described above functions more effectively when the air conditioning equipment 3 tends to vibrate in a horizontal translational manner when mechanical resonance occurs, provided it is equipped with a support portion 10A (Figure 6).

[0055] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0056] For example, the mounting frame 2 may be configured without including the aforementioned vibration damping device 1, and the vibration damping device 1 may be a separate component. The position where the support portion 10 suppresses the vibration of the frame (beam) of the support structure 2 should be determined based on a position where the vibration of the frame (beam) of the support structure 2 is relatively large. In the above embodiment, the position may be determined based on a position that divides the frame 21 in its extension direction. The number of vibration damping devices 1 installed on the frame 2 is not limited to one; any number may be installed as needed. When multiple vibration damping devices 1 are installed on the frame 2, they may be arranged so as to face different beams, or they may be arranged so as to face a common beam. The air conditioning equipment 3 is an example of a device equipped with a vibration source located on top of the frame 2 of the embodiment. The vibration source may be a motor. Furthermore, devices equipped with vibration sources are not limited to the air conditioning equipment 3. For example, generators, outdoor units of air conditioning equipment, and cooling towers are examples of devices equipped with vibration sources. Such devices may be equipped with vibration sources such as motors and engines. Thus, the devices according to this embodiment are not limited to those located indoors (such as the air conditioning equipment 3), but may also be located outdoors. [Explanation of Symbols]

[0057] 1. 1A Vibration damping device 2, 2A mounting base 3 Air conditioning equipment 10, 10A support part, 11, 11A base, 12, 12A bundle, 13, 13A Plate-shaped member, 14 Fixing members, 15, 16 Elastic bodies, 21 frames, 22 legs, 100 Air conditioning systems, 131 Page 1, 132 2nd page

Claims

1. An object including a frame placed on a reference plane of the floor and a device placed on the frame, wherein the frame is configured to include a frame that supports the device from below and legs for supporting the frame at a predetermined height, and a vibration damping device that suppresses vibrations occurring in an object in which the device contains a vibration source, A bundle fixed to a base fixed to the reference surface, and a support portion having a first surface that faces the side surface of the frame while being constrained by the bundle, An elastic body disposed between the side surface of the frame and the first surface of the support portion, A vibration damping device equipped with the following features.

2. The aforementioned support portion is A plate-like member having the first surface and a second surface on the back side of the first surface, wherein the second surface is fixed to the bundle, The vibration damping device according to claim 1.

3. The width in the creepage direction of the upper end of the first surface of the plate-like member is wider than the width in the creepage direction of the lower end of the first surface. The vibration damping device according to claim 2.

4. The frame includes beams that form the sides of the frame, The upper end of the first surface of the plate-shaped member is brought into contact with the beam via the elastic body containing high-damping rubber. The vibration damping device according to claim 2.

5. Both ends of the beam are connected to the legs of the frame, The first surface is positioned opposite the beam at a position where the effect of suppressing the vibration of the beam is relatively large, The elastic body is in contact with the beam and the first surface, respectively. The vibration damping device according to claim 4.

6. The elastic body applies a stress to the beam and the first surface in a direction that cancels out the change in the separation distance between the beam and the first surface. The vibration damping device according to claim 5.

7. The elastic body generates a stress that counteracts the force that causes the beam to translate in the direction along the first surface. The vibration damping device according to claim 5.

8. A fixing member that limits the distance between the plate-shaped member and the beam to a predetermined range. The vibration damping device according to claim 4, comprising:

9. The extension direction of the bundle of the support portion from the base is in the vertical direction or in a direction inclined at a predetermined angle with respect to the vertical direction. The vibration damping device according to claim 2.

10. A frame positioned on the floor reference plane and supporting a device positioned above it, A frame supporting the aforementioned device from below, Legs for supporting the frame at a predetermined height, A bundle fixed to a base fixed to the reference surface, and a support portion having a first surface that faces the side surface of the frame while being constrained by the bundle, An elastic body disposed between the side surface of the frame and the first surface of the support portion, A mounting frame equipped with a stand.

11. The frame described in claim 10, A vibration source is positioned on top of the aforementioned frame. A device equipped with the following features.

12. The vibration source is a motor or an engine. The apparatus according to claim 11.

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