CN110905963A - Vibration damping device and refrigeration system - Google Patents
Vibration damping device and refrigeration system Download PDFInfo
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- CN110905963A CN110905963A CN201911230142.6A CN201911230142A CN110905963A CN 110905963 A CN110905963 A CN 110905963A CN 201911230142 A CN201911230142 A CN 201911230142A CN 110905963 A CN110905963 A CN 110905963A
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- 238000013016 damping Methods 0.000 title claims abstract description 175
- 238000005057 refrigeration Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 238000004073 vulcanization Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
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- 238000010276 construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
- F16F13/108—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of plastics springs, e.g. attachment arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a vibration damping device and a refrigeration system. The vibration damping device comprises a vibration damping part, wherein the vibration damping part is arranged between the device to be damped and the base so as to damp the device to be damped; the vibration damping portion includes: a damping part body having a plurality of receiving cavities; magnetorheological liquid is filled in each accommodating cavity; and the coils are connected with the vibration damping part body, and the periphery of each accommodating cavity is wound with the coils so as to adjust the rigidity of the magnetorheological liquid in the corresponding accommodating cavity through the coils. The technical scheme of the invention solves the problem of poor vibration damping effect of the vibration damping device in the prior art.
Description
Technical Field
The invention relates to the technical field of vibration reduction, in particular to a vibration reduction device and a refrigeration system.
Background
The compressor is used as a core component of the refrigerating system, and because of the existence of the inertia force and the inertia moment of an inner rotating component which are not balanced, the problems of vibration, noise and the like exist in the running process of the compressor, and the vibration of the compressor can be transmitted to a pipeline connected with the compressor to influence the running of the whole refrigerating system.
In the related art, in order to solve the vibration problem of the compressor, a rubber pad is arranged between the compressor and the base, and the vibration reduction effect is realized by using the characteristics of a rubber material. But the rigidity of the rubber pad cannot be changed according to the vibration of the compressor, so that the vibration reduction effect is poor.
Disclosure of Invention
The invention mainly aims to provide a vibration damping device and a refrigerating system, and aims to solve the problem that the vibration damping device in the prior art is poor in vibration damping effect.
In order to achieve the above object, according to one aspect of the present invention, there is provided a vibration damping device including a vibration damping portion for being installed between a device to be vibration damped and a base to damp vibration of the device to be damped; the vibration damping portion includes: a damping part body having a plurality of receiving cavities; magnetorheological liquid is filled in each accommodating cavity; and the coils are connected with the vibration damping part body, and the periphery of each accommodating cavity is wound with the coils so as to adjust the rigidity of the magnetorheological liquid in the corresponding accommodating cavity through the coils.
Further, the vibration damping device further includes: the controller is electrically connected with each coil; the detection part is used for being installed on the device to be damped so as to obtain the vibration intensity of the device to be damped; the detection part is electrically connected with the controller, so that the controller can adjust the rigidity of the magnetorheological fluid in each accommodating cavity according to the vibration strength.
Further, the detection section includes: three vibration sensor, three vibration sensor looks interval ground sets up on treating damping device, and three vibration sensor all is connected with the controller electricity.
Furthermore, each coil is embedded on the vibration damping part body; the damping part body is provided with an avoiding hole, and the end part of the coil extends out of the avoiding hole and is electrically connected with the controller.
Further, the vibration damping portion body is made of a rubber material; the vibration damping device further includes: the connecting part is arranged on the vibration damping part body, and the vibration damping part body is connected with the device to be damped through the connecting part; the connecting part is made of metal materials, the connecting part is connected with the vibration damping part body through a vulcanization process, the connecting part is welded with the device to be damped, and the vibration damping part body is connected with the base through the vulcanization process.
Furthermore, the vibration damping part body is annularly arranged, the vibration damping part body is provided with a yielding hole, and the plurality of accommodating cavities are arranged at intervals around the circumferential direction of the vibration damping part body; the connecting part is arranged annularly; the connecting part comprises a first connecting plate section and a second connecting plate section which are connected along the axial direction of the connecting part, the outer diameter of the first connecting plate section is larger than that of the first connecting plate section, and the outer diameter of the second connecting plate section is equal to the diameter of the abdicating hole; when connecting portion set up on damping portion body, first connecting plate section and the laminating of damping portion body, the second connecting plate section stretches into the hole of stepping down.
Further, in the axial direction of the connecting portion, the length of the second connecting plate segment is smaller than the length of the vibration damping portion body.
Further, the outer diameter of the first connecting plate segment is equal to the outer diameter of the damper portion body.
Further, the device to be damped is a compressor; the connecting portion are the annular setting, and connecting portion have the mounting hole, and the diameter of mounting hole equals the external diameter of the jar body of compressor.
According to another aspect of the present invention, there is provided a refrigeration system comprising: a base; the compressor is arranged on the base and is a device to be damped; the vibration damping device is the vibration damping device, and a vibration damping part of the vibration damping device is arranged between the compressor and the base.
By applying the technical scheme of the invention, the magnetorheological fluid in the containing cavity and the corresponding coil form a vibration damping unit, the current in the coil is adjusted, and the magnetic field intensity in the containing cavity corresponding to the current can be changed, so that the rigidity of the magnetorheological fluid in the containing cavity can be changed. The application provides a damping portion of damping device has a plurality of damping units to can treat damping device through the rigidity of adjusting each damping unit and carry out the damping, and then be favorable to promoting damping device's damping effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic construction of a part of the construction of a refrigeration system according to an alternative embodiment of the invention;
FIG. 2 shows a schematic cross-sectional view at A-A in FIG. 1;
FIG. 3 shows an enlarged schematic view of the structure at B in FIG. 2;
FIG. 4 is an enlarged schematic view of the vibration damping device and base of FIG. 1;
fig. 5 shows a schematic top view of the connecting part of the vibration damping device of fig. 1;
fig. 6 is a front view schematically showing the connection part of fig. 5.
Wherein the figures include the following reference numerals:
1. a device to be damped; 2. a base; 3. a vibration damping device; 100. a vibration damping section; 110. a vibration damping part body; 111. an accommodating chamber; 120. a magnetorheological fluid; 130. a coil; 200. a connecting portion; 210. a first connector plate segment; 220. a second connector plate segment; 300. a detection unit; 310. a vibration sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a vibration damping device and a refrigerating system, aiming at solving the problem that the vibration damping effect of the vibration damping device in the prior art is poor.
As shown in fig. 1 to 6, the vibration damping device includes a vibration damping portion 100, and the vibration damping portion 100 is used for being installed between the device to be damped 1 and the base 2 to damp the vibration of the device to be damped 1; the vibration damping part 100 comprises a vibration damping part body 110, magnetorheological liquid 120 and a coil 130, wherein the vibration damping part body 110 is provided with a plurality of accommodating cavities 111, the magnetorheological liquid 120 is filled in each accommodating cavity 111, the coil 130 is connected with the vibration damping part body 110, and the coil 130 is wound on the peripheral side of each accommodating cavity 111 so as to adjust the rigidity of the magnetorheological liquid 120 in the accommodating cavity 111 corresponding to the accommodating cavity through the coil 130.
In this embodiment, the magnetorheological fluid 120 in one of the accommodating cavities 111 and the corresponding coil 130 form a damping unit, and the adjustment of the current in the coil 130 can change the magnetic field strength in the corresponding accommodating cavity 111, thereby changing the stiffness of the magnetorheological fluid 120 in the accommodating cavity 111. The application provides a damping portion 100 of damping device has a plurality of damping units to can treat damping device 1 through the rigidity of adjusting each damping unit and carry out the damping, and then be favorable to promoting damping device's damping effect.
As shown in fig. 1, the vibration damping device further includes a controller electrically connected to each coil 130, and a detection portion 300 for mounting on the device to be damped 1 to obtain the vibration intensity of the device to be damped 1; the detecting portion 300 is electrically connected to the controller, so that the controller can adjust the stiffness of the magnetorheological fluid 120 in each accommodating cavity 111 according to the vibration intensity. Thus, the vibration damping portion 100 and the detecting portion 300 are matched to dynamically control the stiffness of the magnetorheological fluid 120 in each accommodating cavity 111, so that the stiffness of the magnetorheological fluid 120 is matched with the vibration state of the device 1 to be damped, and the best vibration damping effect is achieved.
In specific implementation, the controller is configured to monitor vibration of the device to be damped 1 and to control the magnetic field strength in the accommodating cavity 111 of the damping portion 100 of the damping device 3.
Alternatively, the detection portion 300 includes three vibration sensors 310, the three vibration sensors 310 are disposed on the device to be damped 1 at intervals, and the three vibration sensors 310 are all electrically connected to the controller. Therefore, vibration signals of the device 1 to be damped are collected through the three vibration sensors 310, the collected vibration signals are sent to the controller, the controller calculates vibration intensity of each vibration damping unit according to the collected vibration signals, current intensity in the coil 130 of each vibration damping unit is controlled according to the vibration intensity, accordingly, magnetic field intensity in the accommodating cavity 111 of each vibration damping unit is adjusted, and finally, dynamic control over rigidity of each vibration damping unit is achieved.
As shown in fig. 1, when the device 1 to be damped is a compressor, three point-location vibration sensors 310 are selected on the side wall of the compressor tank to collect vibration signals of the compressor, and the vibration intensity at the distribution point of each vibration damping unit correspondingly arranged on the compressor can be calculated by using the vibration signals of the three points and through a rigid body kinematics equation.
The method for calculating the vibration intensity of each vibration reduction unit by the controller according to the acquired vibration signals specifically comprises the following steps: establishing a coordinate system for the device 1 to be damped and the damping device 3, selecting three points on the device 1 to be damped to arrange vibration sensors 310, sending collected vibration signals of the device 1 to be damped to a controller by the three vibration sensors 310, substituting the collected vibration signals of the known three points into a rigid body kinematics equation (1) by the controller for calculation to obtain the vibration signals of the known three points
And
and then substituting the corresponding coordinates of the positions of the vibration damping units into a rigid body kinematic equation (1) to calculate the vibration intensity corresponding to each vibration damping unit. Wherein, the rigid body kinematic equation (1) is shown as the following formula:
optionally, the vibration sensor is an electrodynamic sensor, and when the moving conductor cuts the magnetic force line under the fixed magnetic field force, electromotive force is induced at two ends of the conductor, and the generated electromotive force is in direct proportion to the vibration intensity of the device to be damped.
As shown in fig. 3, each coil 130 is embedded on the damping part body 110; the damping part body 110 has a relief hole through which the end of the coil 130 protrudes and is electrically connected with the controller. Thus, the coil 130 is fixed on the damping part body 110 in an embedded manner, so that the coil 130 is prevented from moving relative to the damping part body 110, and the damping part has the advantage of simple and reliable assembly.
Alternatively, the damping portion body 110 is made of a rubber material; as shown in fig. 1 to 6, the vibration damping device further includes a connecting portion 200, the connecting portion 200 is disposed on the vibration damping portion body 110, and the vibration damping portion body 110 is connected to the device to be damped 1 through the connecting portion 200; the connecting portion 200 is made of a metal material, the connecting portion 200 is connected to the vibration damping portion body 110 through a vulcanization process, the connecting portion 200 is welded to the device 1 to be damped, and the vibration damping portion body 110 is connected to the base 2 through the vulcanization process. The vibration damping part body 110 made of a rubber material has a good vibration damping and buffering function; the connecting portion 200 made of a metal material facilitates the connection of the vibration damping device 3 with the device to be damped 1.
Alternatively, the connection portion 200 is made of steel.
As shown in fig. 1 and 2, the damping part body 110 is annularly arranged, the damping part body 110 has a relief hole, and a plurality of receiving cavities 111 are arranged at intervals around the circumference of the damping part body 110; as shown in fig. 2 to 6, the connection portion 200 is annularly disposed; along the axial direction of the connecting part 200, the connecting part 200 comprises a first connecting plate section 210 and a second connecting plate section 220 which are connected, the outer diameter of the first connecting plate section 210 is larger than that of the first connecting plate section 210, and the outer diameter of the second connecting plate section 220 is equal to the diameter of the abdicating hole; when the connecting portion 200 is disposed on the damping portion body 110, the first connecting plate segment 210 is attached to the damping portion body 110, and the second connecting plate segment 220 extends into the yielding hole. Thus, the second connecting plate section 220 is installed in the abdicating hole, which is beneficial to avoiding the deformation of the vibration damping part body 110 along the radial direction; the damping portion body 110 arranged in an annular shape is arranged around the circumferential direction of the device 1 to be damped, which is beneficial to improving the damping effect.
As shown in fig. 1 and 4, the second connection plate segment 220 has a length smaller than that of the damping portion body 110 in the axial direction of the connection portion 200. In this way, it can be avoided that the too long length of the second connecting plate segment 220 affects the damping effect of the damping device.
Optionally, by adjusting the length of the second connecting plate segment 220, it is able to prevent the vibration damping portion body 110 from deforming along the radial direction thereof, and avoid that the too long length of the second connecting plate segment 220 affects the vibration damping effect of the vibration damping device.
Optionally, the outer diameter of the first connecting plate segment 210 is equal to the outer diameter of the damper portion body 110. Therefore, the first connecting plate section 210 and the damping part body 110 can be conveniently connected together by adopting a vulcanization process, and the assembled damping device 3 has better appearance aesthetic feeling.
Optionally, the device to be damped 1 is a compressor; the connection portion 200 is annularly disposed, and the connection portion 200 has a mounting hole having a diameter equal to an outer diameter of a tank of the compressor. Thus, part of the structure of the tank of the compressor extends into the mounting hole, which is beneficial to the stable and reliable installation of the compressor on the vibration damper 3.
Alternatively, the outer peripheral wall of the tank of the compressor is welded to the hole inner wall of the mounting hole.
Optionally, the connection portion 200 is a metal gasket, and is welded to the bottom of the tank of the compressor; the first and second connecting plate segments 210 and 220 are vulcanized with the damping portion 100 as an integral structure; the vibration damping portion 100 is integrally formed with the base 2 by a vulcanization process.
As shown in fig. 1, the refrigeration system includes a compressor, a base 2, and a vibration damping device 3, the compressor is a device 1 to be damped, the compressor is disposed on the base 2, the vibration damping device 3 is the vibration damping device described above and below, and a vibration damping portion 100 of the vibration damping device 3 is installed between the compressor and the base 2. Because the rigidity of the vibration damping part 100 can be changed according to the vibration intensity of the compressor, the vibration damping device 3 has a good vibration damping effect on the compressor, the vibration of a pipeline caused by the vibration of the compressor in the use process of the refrigeration system is avoided, the noise is reduced, and the reliable operation and the safe operation of the refrigeration system are ensured.
Specifically, compared with the conventional rubber foot pad, due to the existence of the magnetorheological fluid, the rigidity of the vibration damping portion 100 of the vibration damping device 3 can be matched with the vibration intensity of the device to be damped 1 in real time, so that the vibration control of the compressor achieves a better effect, wherein the rigidity of the vibration damping portion 100 is increased along with the increase of the vibration intensity of the compressor.
The damping device 3 provided by the application is designed aiming at the characteristics of the magnetorheological liquid, the rigidity of the damping part 100 is adapted to the vibration amplitude of the compressor, so that the dynamic control on the vibration of the compressor is realized, and further the more optimal control on the vibration of the compressor is realized.
Alternatively, the vibration sensors 310 are connected to a sidewall of a tank of the compressor, and three vibration sensors 310 are disposed at equal intervals around the circumference of the tank.
The vibration damping part 100 of the vibration damping device 3 is arranged between the tank body of the compressor and the base 2, so that rigid contact between the tank body of the compressor and the base 2 is avoided, and meanwhile, the rigidity of the vibration damping part 100 can be changed along with stress caused by vibration of the compressor, so that the vibration damping effect of the vibration damping device 3 on the compressor is improved.
The vibration sensor 310 collects vibration signals of the compressor tank and the controller receives the signals, so that the change of the external magnetic field of the plurality of accommodating cavities 111 of the vibration damping part 100 array is controlled, the dynamic control of the rigidity of the vibration damping part 100 is realized, the vibration damping part is matched with the vibration state of the compressor, and the maximum vibration damping effect of the compressor is achieved.
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 example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those 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 particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship 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 of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A vibration damping device, characterized in that the vibration damping device comprises a vibration damping portion (100), the vibration damping portion (100) is used for being installed between a device (1) to be damped and a base (2) so as to damp the device (1) to be damped; the vibration damping portion (100) includes:
a vibration damping part body (110), the vibration damping part body (110) having a plurality of accommodation cavities (111);
magnetorheological liquids (120), wherein the accommodating cavities (111) are filled with the magnetorheological liquids (120);
the coil (130) is connected with the vibration damping part body (110), the coil (130) is wound on the peripheral side of each accommodating cavity (111), and the rigidity of the magnetorheological fluid (120) in the corresponding accommodating cavity (111) is adjusted through the coil (130).
2. The vibration damping device according to claim 1, further comprising:
a controller electrically connected to each of the coils (130);
a detection part (300), wherein the detection part (300) is used for being installed on the device (1) to be damped so as to obtain the vibration intensity of the device (1) to be damped; the detection part (300) is electrically connected with the controller, so that the controller adjusts the rigidity of the magnetorheological liquid (120) in each accommodating cavity (111) according to the vibration intensity.
3. The vibration damping device according to claim 2, characterized in that the detection portion (300) includes:
the vibration damping device comprises three vibration sensors (310), the three vibration sensors (310) are arranged on the device (1) to be damped at intervals, and the three vibration sensors (310) are electrically connected with the controller.
4. The vibration damping device according to claim 2, characterized in that each of the coils (130) is embedded on the vibration damping portion body (110); the damping part body (110) is provided with an avoidance hole, and the end part of the coil (130) extends out of the avoidance hole and is electrically connected with the controller.
5. The vibration damping device according to claim 1, characterized in that the damping portion body (110) is made of a rubber material; the vibration damping device further includes:
the connecting part (200) is arranged on the vibration damping part body (110), and the vibration damping part body (110) is connected with the device (1) to be damped through the connecting part (200); the connecting portion (200) is made of metal materials, the connecting portion (200) is connected with the vibration damping portion body (110) through a vulcanization process, the connecting portion (200) is welded with the device (1) to be damped, and the vibration damping portion body (110) is connected with the base (2) through the vulcanization process.
6. The vibration damping device according to claim 5,
the damping part body (110) is arranged in an annular shape, the damping part body (110) is provided with a yielding hole, and the accommodating cavities (111) are arranged at intervals around the circumferential direction of the damping part body (110);
the connecting part (200) is arranged annularly; along the axial direction of the connecting part (200), the connecting part (200) comprises a first connecting plate section (210) and a second connecting plate section (220) which are connected, the outer diameter of the first connecting plate section (210) is larger than that of the first connecting plate section (210), and the outer diameter of the second connecting plate section (220) is equal to the diameter of the abdicating hole; when connecting portion (200) set up when damping portion body (110) is last, first connecting plate section (210) with damping portion body (110) laminating, second connecting plate section (220) stretch into the hole of stepping down.
7. The vibration damping device according to claim 6, characterized in that the second connecting plate segment (220) has a length in the axial direction of the connecting portion (200) that is smaller than the length of the damping portion body (110).
8. The vibration damping device according to claim 6, characterized in that the outer diameter of the first connecting plate section (210) is equal to the outer diameter of the damping portion body (110).
9. Damping device according to claim 5, characterized in that the device (1) to be damped is a compressor; the connecting portion (200) is annularly arranged, the connecting portion (200) is provided with a mounting hole, and the diameter of the mounting hole is equal to the outer diameter of the tank body of the compressor.
10. A refrigeration system, comprising:
a base (2);
the compressor is arranged on the base (2) and is a device (1) to be damped;
a vibration damping device (3), the vibration damping device (3) being as defined in any one of claims 1 to 9, a vibration damping portion (100) of the vibration damping device (3) being mounted between the compressor and the base (2).
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| CN201911230142.6A CN110905963A (en) | 2019-12-04 | 2019-12-04 | Vibration damping device and refrigeration system |
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| CN201911230142.6A CN110905963A (en) | 2019-12-04 | 2019-12-04 | Vibration damping device and refrigeration system |
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| CN113550885A (en) * | 2021-07-02 | 2021-10-26 | 珠海格力电器股份有限公司 | Vibration reduction mechanism, compressor and vibration reduction control method |
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