CN107355904B - Compressor and refrigerating device with same - Google Patents
Compressor and refrigerating device with same Download PDFInfo
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- CN107355904B CN107355904B CN201710736129.2A CN201710736129A CN107355904B CN 107355904 B CN107355904 B CN 107355904B CN 201710736129 A CN201710736129 A CN 201710736129A CN 107355904 B CN107355904 B CN 107355904B
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- 239000002184 metal Substances 0.000 claims abstract description 59
- 229910052751 metal Inorganic materials 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 239000013013 elastic material Substances 0.000 claims abstract description 38
- 229920001971 elastomer Polymers 0.000 claims description 21
- 239000000806 elastomer Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 32
- 238000013016 damping Methods 0.000 abstract description 14
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002923 metal particle Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/10—Arrangement or mounting thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/12—Vibration or noise prevention thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a compressor and a refrigerating device with the same, wherein the compressor comprises: the device comprises a shell, a plurality of cantilever beams, a plurality of foot pads and a mounting seat. Each cantilever beam comprises a metal sheet, an elastic material piece and a constraint layer, and each foot pad comprises a container, a piston and a piston rod. According to the compressor of the present invention, vibration generated by the compressor can be transmitted to the cantilever beam, and the metal sheet and the constraining layer are simultaneously elastically deformed and a tensile load is applied to the elastic material member. Because the deformation of the metal sheet is different from that of the constraint layer, the elastic material piece can generate shearing deformation, so that vibration kinetic energy can be converted into strain energy, and the strain energy is converted into heat to be released, thereby playing a role in damping. Further, the vibration generated by the compressor forms downward impact load to force and contract the elastic body in the liquid, the momentum of the vibration is absorbed and converted into heat, and the heat is transmitted out through the side wall of the container, so that the vibration reduction effect can be achieved, and the working noise of the compressor can be reduced.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to a compressor and a refrigeration device with the same.
Background
At present, refrigeration devices are mainly powered by compressors. When the compressor is operated, vibration generated by the compressor can be directly transmitted to the sheet metal part at the bottom through the foot pad, and then noise can be radiated. In addition, vibration of the compressor is also transmitted to the condenser and the right shroud through the piping, so that a large noise is generated, thereby increasing the operation noise of the refrigerating apparatus.
In the related art, a rubber ring is provided on a compressor to damp vibration. Because the rubber ring is not easy to compress and deform, the vibration reduction effect is poor, and the use effect of a user is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the compressor which has the advantages of simple structure and capability of reducing noise of the refrigerating device.
The invention also provides a refrigerating device with the compressor.
According to an embodiment of the present invention, a compressor includes: the shell is provided with an exhaust port, and the bottom of the shell is provided with a mounting seat; the plurality of cantilever beams are respectively arranged on the peripheral wall of the shell, the natural frequencies of at least two cantilever beams are different, each cantilever beam comprises a metal sheet, an elastic material piece and a constraint layer, at least one side wall of the metal sheet is provided with the elastic material piece, the side wall, far away from the metal sheet, of each elastic material piece is provided with the constraint layer, and the deformation of the metal sheet is different from that of the constraint layer when the compressor operates; the plurality of foot pads are respectively arranged on the mounting seat, each foot pad comprises a container, a piston and a piston rod, the piston rod is arranged on the piston, the upper part of the piston rod penetrates out of the container to be fixed on the mounting seat, the piston is positioned in the container, the outer peripheral wall of the piston is matched with the inner peripheral wall of the container to limit a closed compression space, liquid is filled in the compression space, the piston is in contact with the liquid level of the liquid, and an elastomer is arranged in the liquid.
According to the compressor provided by the embodiment of the invention, by arranging the plurality of cantilever beams and the foot pads, when the compressor works, vibration generated by the compressor can be transmitted to the cantilever beams. Under the action of vibration, the metal sheet and the constraint layer are simultaneously elastically deformed, and the metal sheet and the constraint layer apply a tensile load to the elastic material piece. Because the deformation of the metal sheet is different from that of the constraint layer, the elastic material piece can be subjected to shearing deformation, so that vibration kinetic energy can be converted into strain energy, and the strain energy is converted into heat to be released, and the damping effect can be achieved. Further, vibration generated by the compressor forms downward dynamic impact load to act on the foot pad, the elastic body in the liquid is stressed and contracted, the momentum of the vibration is absorbed and converted into heat, the heat is transmitted out through the side wall of the container, so that the vibration absorbing effect can be achieved, the vibration generated by the compressor can be prevented from being transmitted to the sheet metal part, and therefore the working noise of the compressor can be reduced. The compressor is through the shock attenuation mode of damper and a plurality of callus on the sole combination, can play fine shock attenuation effect, furthest's reduction compressor's operational noise.
According to some embodiments of the invention, the elastic material member and the constraining layer are provided on opposite side walls in a thickness direction of each of the metal plates.
According to some embodiments of the invention, the natural frequencies of the plurality of cantilever beams are all different.
In some embodiments of the invention, the plurality of cantilever beams are different in length and the same in thickness.
According to some embodiments of the invention, the constraining layer is a piece of metallic material.
According to some embodiments of the invention, two sides of the central axis of the shell are respectively provided with a plurality of cantilever beams which are distributed at intervals in the up-down direction.
In some embodiments of the present invention, a plurality of cantilever beams are respectively disposed at two sides of a central axis of the housing and are spaced apart in a circumferential direction.
In some embodiments of the invention, the plurality of cantilever beams distributed on the same side of the central axis of the housing are uniformly spaced in a plurality of rows and columns.
According to some embodiments of the invention, the spacing between adjacent ones of the plurality of cantilevers remains unchanged.
According to some embodiments of the invention, a plurality of the elastomers are disposed within the liquid.
According to some embodiments of the invention, each of the elastomers is a hollow member.
According to some embodiments of the invention, each of the elastomers is formed as a sphere.
According to some embodiments of the invention, each of the elastomers is a rubber member.
According to some embodiments of the invention, the container is a steel material piece.
According to some embodiments of the invention, the liquid is engine oil.
According to some embodiments of the invention, the upper end of the piston rod passes through the mounting seat, and the part of the piston rod passing out of the mounting seat is provided with external threads matched with a nut.
According to some embodiments of the invention, the outer bottom wall of the container is provided with an upwardly concave fastening space, the inner peripheral wall of which is provided with mating threads.
The refrigerating device according to the embodiment of the invention comprises the compressor according to the embodiment of the invention.
According to the refrigerating device provided by the embodiment of the invention, by arranging the compressor, the compressor is provided with the plurality of cantilever beams and the foot pads, and when the compressor works, vibration generated by the compressor can be transmitted to the cantilever beams. Under the action of vibration, the metal sheet and the constraint layer are simultaneously elastically deformed, and the metal sheet and the constraint layer apply a tensile load to the elastic material piece. Because the deformation of the metal sheet is different from that of the constraint layer, the elastic material piece can be subjected to shearing deformation, so that vibration kinetic energy can be converted into strain energy, and the strain energy is converted into heat to be released, and the damping effect can be achieved. Further, vibration generated by the compressor forms downward dynamic impact load to act on the foot pad, the elastic body in the liquid is stressed and contracted, the momentum of the vibration is absorbed and converted into heat, the heat is transmitted out through the side wall of the container, so that the vibration absorbing effect can be achieved, the vibration generated by the compressor can be prevented from being transmitted to the sheet metal part, and therefore the working noise of the compressor can be reduced. The compressor is through the shock attenuation mode of damper and a plurality of callus on the sole combination, can play fine shock attenuation effect, furthest's reduction compressor's operational noise.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a front view of a compressor according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a schematic view of a cantilever beam structure in which one side wall of a metal sheet is provided with an elastic material member and a constraining layer according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of a cantilever beam structure in which both sidewalls of a metal sheet are provided with an elastic material member and a constraining layer according to an embodiment of the present invention;
FIG. 5 is a schematic overall construction of a footpad in accordance with an embodiment of the present invention;
FIG. 6 is a top view of the footpad shown in FIG. 5;
fig. 7 is a schematic view of an overall structure of a compressor according to an embodiment of the present invention.
Reference numerals:
the compressor 100 is configured to provide a compressor,
the housing 10 is provided with a plurality of openings,
cantilever beam 20, sheet metal 210, elastomeric member 220, constraining layer 230,
foot pad 30, reservoir 310, fixation space 3110, piston 320, piston rod 330, elastomer 340, liquid 350,
the mounting base 40 is provided with a plurality of mounting holes,
metal particles 50.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A compressor 100 according to an embodiment of the present invention, which can be used in a refrigerating apparatus, is described below with reference to fig. 1 to 3.
As shown in fig. 1-2, a compressor 100 according to an embodiment of the present invention includes a housing 10 and a plurality of foot pads 30. The casing 10 is provided with an exhaust port, and when the compressor 100 is in operation, the compressor 100 compresses the refrigerant, and after the refrigerant is compressed, the refrigerant is discharged from the exhaust port of the casing 10. The bottom of the casing 10 is provided with a mounting seat 40, and the mounting seat 40 plays a role in supporting the compressor 100.
As shown in fig. 1 to 4, a plurality of cantilever beams 20 are respectively provided on the outer peripheral wall of the housing 10, and the natural frequencies of at least two cantilever beams 20 are different. When the compressor 100 is operated, the compressor 100 generates vibration, and the vibration is transmitted to the cantilever beam 20 on the outer circumferential wall of the housing 10 through the housing 10. Under the action of vibration, the cantilever beam 20 can generate elastic deformation to convert the kinetic energy of vibration into strain energy, and then the strain energy is converted into heat to be released, so that the damping effect can be realized. Since the compressor 100 generates vibration of various frequencies when operating, when the natural frequencies of at least two cantilever beams 20 are different, the cantilever beams 20 can cancel the vibration of different frequencies, so that the damping effect of the cantilever beams 20 can be improved.
As shown in fig. 3 to 4, each cantilever beam 20 includes a metal plate 210, an elastic material member 220, and a constraint layer 230, the elastic material member 220 is disposed on at least one sidewall of the metal plate 210, the constraint layer 230 is disposed on a sidewall of each elastic material member 220 away from the metal plate 210, and a deformation amount of the metal plate 210 is different from a deformation amount of the constraint layer 230 when the compressor 100 is operated. Wherein the elastomeric member 220 may be a nitrile rubber material or a viscoelastic material.
For example, as shown in fig. 3, an elastic material 220 is disposed on one side wall of the metal plate 210, and the cantilever beam 20 is composed of the metal plate 210, the elastic material 220 and a constraining layer 230, wherein the metal plate 210 is located at the lowermost end of the cantilever beam 20, the constraining layer 230 is located at the uppermost end of the cantilever beam 20, and the elastic material 220 is located between the metal plate 210 and the constraining layer 230 and is in direct contact with the metal plate 210 and the constraining layer 230, respectively. When vibration acts on the cantilever beam 20, the metal sheet 210 and the constraining layer 230 are simultaneously elastically deformed, and both the metal sheet 210 and the constraining layer 230 apply a tensile load to the elastic material member 220. Since the deformation amount of the metal sheet 210 is different from the deformation amount of the constraint layer 230, the tensile loads acting on the elastic material member 220 by the metal sheet 210 and the constraint layer 230 are different, the elastic material member 220 is subjected to shear deformation, vibration kinetic energy can be converted into strain energy, and the strain energy is converted into heat to be released, so that the vibration reduction effect can be achieved, vibration can be prevented from being transmitted to the sheet metal member at the bottom of the compressor 100, and thus the working noise of the compressor 100 can be reduced. It will be appreciated that the resilient material 220 may be provided on both side walls of the sheet metal 210. Alternatively, the metal sheet 210 may be fixed to the outer circumferential wall of the case 10 by welding.
As shown in fig. 1 to 3, a plurality of foot pads 30 are respectively provided on the mounting base 40, and when the compressor 100 is operated, vibration generated by the compressor 100 can be transmitted to the foot pads 30 on the mounting frame, and the foot pads 30 can play a role in buffering the vibration, so that the operation noise of the compressor 100 can be reduced. As shown in fig. 2, each of the foot pads 30 includes a container 310, a piston 320, and a piston rod 330, the piston rod 330 is provided on the piston 320 and an upper portion of the piston rod 330 penetrates the container 310 to be fixed to the mount 40, the piston 320 is located in the container 310 and an outer circumferential wall of the piston 320 is engaged with an inner circumferential wall of the container 310 to define a closed compression space. When the compressor 100 vibrates, the piston 320 moves up and down in the container 310 under the vibration. The compression space is filled with liquid 350, and the piston 320 is in contact with the liquid surface of the liquid 350. The liquid 350 may act as a support for the piston 320 when the piston 320 is depressed. Wherein the elastic body 340 is provided in the liquid 350, and when the piston 320 applies downward pressure to the liquid 350, the elastic body 340 may contract, thereby providing a shock absorbing effect.
Specifically, when the compressor 100 is operated, the compressor 100 vibrates to form a downward dynamic impact load, and the dynamic impact load acts on the piston rod 330 of the foot pad 30, the piston rod 330 drives the piston 320 to move downward, and the piston 320 applies downward pressure to the liquid 350. Since the liquid 350 cannot be compressed, pressure is instantaneously transferred to the elastic body 340 in the liquid 350, the elastic body 340 is stressed and contracted, the momentum of vibration is absorbed and converted into heat, and the heat is transferred out through the side wall of the container 310, thereby having a damping effect, and the vibration generated by the compressor 100 is prevented from being transferred to the sheet metal part, thereby reducing the working noise of the compressor 100.
It can be appreciated that the mounting base 40 of the compressor 100 may be provided with a plurality of foot pads 30, when the compressor 100 vibrates, the plurality of foot pads 30 are simultaneously pressed downwards, and meanwhile, vibration is buffered, so that the efficiency of buffering vibration of the foot pads 30 can be improved, and the working noise of the compressor 100 can be reduced to the greatest extent.
According to the compressor 100 of the embodiment of the present invention, by providing the plurality of cantilever beams 20 and the foot pads 30 as described above, vibration generated from the compressor 100 can be transmitted to the cantilever beams 20 when the compressor 100 is operated. Under the action of the vibration, the metal sheet 210 and the constraining layer 230 are simultaneously elastically deformed, and both the metal sheet 210 and the constraining layer 230 apply a tensile load to the elastic material member 220. Since the deformation amount of the metal sheet 210 is different from that of the constraining layer 230, the elastic material member 220 undergoes shear deformation, thereby converting the vibration kinetic energy into strain energy, which is converted into heat to be released, and thus the shock absorbing effect can be achieved. Further, the vibration generated by the compressor 100 forms a downward dynamic impact load on the foot pad 30, the elastic body 340 in the liquid 350 is stressed and contracted, the momentum of the vibration is absorbed and converted into heat, and the heat is transferred out through the side wall of the container 310, so that the vibration absorbing effect can be achieved, the vibration generated by the compressor 100 can be prevented from being transferred to the sheet metal part, and thus the working noise of the compressor 100 can be reduced. The compressor 100 can play a role in good shock absorption by combining the shock absorption components with the plurality of foot pads 30, and the working noise of the compressor 100 is reduced to the maximum extent.
According to some embodiments of the present invention, the elastic material member 220 and the constraining layer 230 are provided on opposite sidewalls of each metal plate 210 in the thickness direction, so that the shock absorbing efficiency of the cantilever beam 20 can be improved. For example, as shown in fig. 4, elastic material members 220 are disposed on sidewalls of both upper and lower ends of each metal sheet 210, and a constraining layer 230 is disposed on a side of each elastic material member 220 away from the metal sheet 210. When vibration acts on the cantilever beam 20, the metal sheet 210 and the constraint layers 230 at the upper and lower ends of the cantilever beam 20 are elastically deformed and have different elastic deformation amounts, and a tensile load generated by the elastic deformation acts on the elastic material pieces 220 on the side walls at the upper and lower ends of the metal sheet 210, and the elastic material pieces 220 on the side walls at the upper and lower ends of the metal sheet 210 are simultaneously subjected to different tensile loads to generate shear deformation, so that the time for consuming vibration kinetic energy can be reduced, the damping efficiency of the cantilever beam 20 can be improved, and a better damping effect can be achieved.
According to some embodiments of the present invention, the constraining layer 230 is a metal material member, so that the shear deformation of the elastic material member 220 can be increased, and thus the shock absorbing efficiency of the cantilever beam 20 can be improved. It will be appreciated that the ductility of the metal material is relatively good, and when vibration acts on the cantilever beam 20, the constraining layer 230 of the metal material can easily generate elastic deformation, so that a larger tensile load can be applied to the elastic material 220, and the shear deformation of the elastic material 220 is increased, so that more vibration kinetic energy can be consumed, and the damping effect is improved.
According to some embodiments of the present invention, the natural frequencies of the plurality of cantilever beams 20 are different, so that the damping effect of the cantilever beams 20 can be improved to the maximum extent. It is understood that when the compressor 100 is operated, the compressor 100 may generate vibration of various frequencies. By arranging the plurality of cantilever beams 20 with different natural frequencies, the plurality of cantilever beams 20 with different natural frequencies can respectively correspond to the vibration with different frequencies generated by the compressor 100, and each cantilever beam 20 can consume the kinetic energy of the vibration with the corresponding frequency through the elastic deformation of the cantilever beams, so that the vibration with the different frequencies can be consumed, a good damping effect is achieved, and the working noise of the compressor can be reduced to the greatest extent.
In some embodiments of the present invention, the lengths and thicknesses of the plurality of cantilever beams 20 are different, so that the frequencies of the vibrations absorbed by the plurality of cantilever beams 20 are different, and the damping effect of the cantilever beams 20 is improved. Specifically, the natural frequency of the uniform material constant section cantilever beam 20 is
Where ρ is the density of the cantilever beam 20, A is the cross-sectional area, E is the elastic modulus, and I is the inertial distance of the cross-section about the neutral axis.
Where b is the width of the cross section and h is the length of the cross section.
Where λ can be derived from the following formula:
ch(λ1)cos(λ1)＝-1
as can be seen from the above formula, when the thickness and length of the plurality of cantilever beams 20 are the same, the inertia distances I of the plurality of cantilever beams 20 are different, and the natural frequencies of the plurality of cantilever beams 20 are different, so that the plurality of cantilever beams 20 can absorb vibrations with different frequencies, thereby improving the damping effect. The more abundant the structural parameters (length, width, thickness, etc.) of the cantilever beam 20, the wider the frequency range of vibration that the cantilever beam 20 can absorb, and the better the damping effect.
As shown in fig. 1 to 2, according to some embodiments of the present invention, both sides of a central axis of a housing 10 are provided with a plurality of cantilever beams 20, respectively, which are spaced apart in an up-down direction, so that vibration of a plurality of frequency bands can be absorbed. Specifically, the compressor 100 may generate vibration of various frequencies during operation, and a plurality of cantilever beams 20 may be disposed in the up-down direction of the outer circumferential wall of the compressor 100 according to the frequency distribution of the vibration, and the cantilever beams 20 of different directions in the up-down direction may cancel the vibration of different frequencies, thereby effectively reducing the operation noise of the compressor 100.
It should be noted that, since the bottom of the compressor 100 is provided with the plurality of foot pads 30, the plurality of foot pads 30 can effectively buffer vibration generated by the compressor 100, and can ensure stability of the compressor 100 during operation. Therefore, the cantilever beam 20 on the shell 10 can be arranged without being symmetrical relative to the central axis thereof, and the foot pad 30 can be arranged at any position on the peripheral wall of the shell 10 according to the installation space and the design requirement, thereby improving the practicability of the compressor 100.
As shown in fig. 2 and 5, in some embodiments of the present invention, a plurality of cantilever beams 20 are respectively disposed at both sides of the central axis of the housing 10 and spaced apart in the circumferential direction, so that vibration of a plurality of frequency bands can be absorbed. Specifically, a plurality of cantilever beams 20 may be disposed at intervals in the circumferential direction of the outer circumferential wall of the compressor 100 according to the frequency distribution of vibration, and the cantilever beams 20 of different orientations in the circumferential direction may cancel out the vibration of different frequencies, so that the working noise of the compressor 100 may be effectively reduced. Further, the cantilever beams 20 distributed on the same side of the central axis of the housing 10 are uniformly distributed at intervals in a plurality of rows and columns, so that the installation difficulty of the cantilever beams 20 can be reduced, and the assembly efficiency is improved.
As shown in fig. 2, according to some embodiments of the present invention, the spacing between adjacent cantilevers 20 of the plurality of cantilevers 20 is maintained constant, so that the distribution of the cantilevers 20 may be more regular under the condition of being able to absorb shock. It is understood that the up-down spacing and the circumferential spacing between the plurality of cantilever beams 20 may be different, and may be selectively set according to the actual vibration frequency distribution of the compressor 100 and the installation space of the compressor 100.
As shown in fig. 2, according to some embodiments of the present invention, a plurality of elastic bodies 340 are provided in the liquid 350, so that a better shock absorbing effect can be achieved. Specifically, when the vibration generated by the compressor 100 forms a downward dynamic impact load on the footpad 30, the plurality of elastic bodies 340 in the liquid 350 are simultaneously pressurized, and the plurality of elastic bodies 340 are simultaneously contracted, so that the momentum of the vibration can be quickly absorbed and converted into heat and the heat can be transferred out through the side wall of the container 310, thereby improving the shock absorbing efficiency of the footpad 30.
As shown in fig. 2, according to some embodiments of the present invention, each elastic body 340 is a hollow member, so that contraction can be more easily performed, and a shock absorbing effect can be improved. It will be appreciated that the resilient body 340 is a hollow member and the hollow region may provide compression space for the resilient body 340 to provide better cushioning of the footpad 30.
As shown in fig. 2, according to some embodiments of the present invention, each elastic body 340 is formed as a sphere, so that the contact area of the elastic body 340 can be increased, and a better shock absorbing effect can be achieved. Specifically, when the elastic body 340 is a sphere, the pressure from the liquid 350 may act on the surface of the elastic body 340 from various angles, increasing the stress area of the elastic body 340, and thus the shock absorbing effect of the foot pad 30 may be improved. The rigidity of the foot pad 30 may be changed by changing the size and the structural parameters of the elastic body 340 and the number of the elastic bodies 340, so that the foot pad 30 may buffer vibrations with different frequencies, thereby reducing the operation noise of the compressor 100 to the maximum extent.
According to some embodiments of the present invention, each elastic body 340 is a rubber member, so that a better shock absorbing effect can be achieved. Specifically, rubber has the advantages of low density, good insulation, high acid and alkali corrosion resistance and low permeability of fluids such as air, water and the like as a polymer material. When the elastic body 340 is soaked in the liquid 350 for a long time, the elastic body 340 made of rubber material can ensure that the elastic body 340 can be normally contracted under pressure, so that the shock absorption effect of the elastic body 340 can be ensured, and the service life of the foot pad 30 can be prolonged.
According to some embodiments of the invention, the liquid 350 is engine oil, so that pressure may be better transferred. It will be appreciated that the oil is an incompressible fluid and that when the piston 320 applies downward pressure to the fluid 350, the fluid 350 will instantaneously transfer the pressure to the elastomer 340 in the fluid 350, thereby enhancing the cushioning efficiency of the footpad 30. Alternatively, the liquid 350 may be a series of liquids with poor compressibility such as water.
According to some embodiments of the present invention, the container 310 is a steel material, which may enhance the structural strength of the footpad 30 and may also enhance the removal of heat from the liquid 350. It will be appreciated that the steel material has good mechanical properties and workability and high structural strength, so that the structural strength of the footpad 30 can be improved to ensure that the footpad 30 is not easily damaged. Further, the steel material has excellent heat conductivity and heat resistance, and when the compressor 100 is operated, the elastic body 340 converts the vibration momentum of the compressor 100 into heat through self-contraction to transfer the heat to the side wall of the container 310, and the container 310 made of steel material can rapidly release the heat in the container 310, thereby reducing the operating temperature of the foot pad 30 and prolonging the service life of the foot pad 30. It will be appreciated that the material of construction of the receptacle of the footpad 30 may also be aluminum, iron, or the like.
As shown in fig. 1-2, according to some embodiments of the present invention, the upper end of the piston rod 330 passes through the mounting seat 40, and the portion of the piston rod 330 passing through the mounting seat 40 is provided with external threads matching with nuts, so that the matching manner of the foot pad 30 and the mounting seat 40 is simpler, and the assembly efficiency is improved. Specifically, when assembling the foot pad 30, the piston rod 330 and the piston 320 are first fitted with the container 310, and then the upper end of the piston rod 330 is passed through a through hole (not shown) in the mount 40, and is screwed with the external thread of the piston rod 330 using a nut, thereby fixing the foot pad 30 to the mount 40.
As shown in fig. 1-2, according to some embodiments of the present invention, an outer bottom wall of the container 310 is provided with an upwardly concave fixing space 3110, and an inner circumferential wall of the fixing space 3110 is provided with mating threads, so that assembling of the foot pad 30 with a sheet metal member on a refrigerating apparatus can be facilitated. In a specific example of the present invention, the fixing space 3110 on the outer bottom wall of the container 310 is formed as a cylindrical hole, and an inner circumferential wall of the fixing space 3110 is provided with an inner screw thread, and when the foot pad 30 is assembled with a sheet metal member on a refrigerating apparatus, a screw thread post on the sheet metal member is screwed with the fixing space 3110.
As shown in fig. 1, in some embodiments of the present invention, a plurality of metal particles 50 may be filled in a cavity space formed at the bottom and top of the compressor 100, in an inner wall cavity of the crankshaft, and the like. When the compressor 100 is operated, under the vibration generated by the compressor 100, a plurality of metal particles 50 in the cavity may collide with each other, and the metal particles 50 and the inner wall of the housing 10 may collide with each other, thereby counteracting a part of the vibration function, and thus, the vibration absorbing effect may be achieved.
The refrigerating apparatus according to the embodiment of the present invention includes the compressor 100 according to the above-described embodiment of the present invention.
According to the refrigerating apparatus of the embodiment of the present invention, by providing the compressor 100, the compressor 100 is provided with a plurality of the cantilever beams 20 and the foot pads 30. When the compressor 100 is operated, vibration generated by the compressor 100 may be transferred to the cantilever beam 20. Under the action of the vibration, the metal sheet 210 and the constraining layer 230 are simultaneously elastically deformed, and both the metal sheet 210 and the constraining layer 230 apply a tensile load to the elastic material member 220. Since the deformation amount of the metal sheet 210 is different from that of the constraining layer 230, the elastic material member 220 undergoes shear deformation, thereby converting the vibration kinetic energy into strain energy, which is converted into heat to be released, and thus the shock absorbing effect can be achieved. Further, the vibration generated by the compressor 100 forms a downward dynamic impact load on the foot pad 30, the elastic body 340 in the liquid 350 is stressed and contracted, the momentum of the vibration is absorbed and converted into heat, and the heat is transferred out through the side wall of the container 310, so that the vibration absorbing effect can be achieved, the vibration generated by the compressor 100 can be prevented from being transferred to the sheet metal part, and thus the working noise of the compressor 100 can be reduced. The compressor 100 can play a role in good shock absorption by combining the shock absorption components with the plurality of foot pads 30, and the working noise of the compressor 100 is reduced to the maximum extent.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (18)
1. A compressor, comprising:
the shell is provided with an exhaust port, and the bottom of the shell is provided with a mounting seat;
the plurality of cantilever beams are respectively arranged on the peripheral wall of the shell, the natural frequencies of at least two cantilever beams are different, each cantilever beam comprises a metal sheet, an elastic material piece and a constraint layer, at least one side wall of the metal sheet is provided with the elastic material piece, the side wall, far away from the metal sheet, of each elastic material piece is provided with the constraint layer, and the deformation of the metal sheet is different from that of the constraint layer when the compressor operates;
the plurality of foot pads are respectively arranged on the mounting seat, each foot pad comprises a container, a piston and a piston rod, the piston rod is arranged on the piston, the upper part of the piston rod penetrates out of the container to be fixed on the mounting seat, the piston is positioned in the container, the outer peripheral wall of the piston is matched with the inner peripheral wall of the container to define a closed compression space, liquid is filled in the compression space, the piston is in contact with the liquid level of the liquid, and an elastomer is arranged in the liquid; wherein the method comprises the steps of
When the compressor works, the compressor generates vibration to form downward dynamic impact load, the dynamic impact load acts on the piston rod of the foot pad, the piston rod drives the piston to move downwards, the piston applies downward pressure to liquid, the liquid can not compress, the liquid instantaneously transfers the pressure to the elastomer in the liquid, the elastomer is stressed and contracted, the momentum of the vibration is absorbed and converted into heat, and the heat is transmitted out through the side wall of the container.
2. The compressor according to claim 1, wherein the elastic material member and the constraining layer are provided on opposite side walls in a thickness direction of each of the metal plates.
3. The compressor of claim 1, wherein the natural frequencies of the plurality of cantilever beams are all different.
4. A compressor according to claim 3, wherein the plurality of cantilever beams are different in length and the same in thickness.
5. The compressor of claim 1, wherein the constraining layer is a piece of metallic material.
6. The compressor of claim 1, further characterized in that both sides of the central axis of the housing are provided with a plurality of cantilever beams, respectively, which are spaced apart in the up-down direction.
7. The compressor of claim 6, wherein a plurality of cantilever beams are provided at both sides of a central axis of the housing, respectively, which are spaced apart in a circumferential direction.
8. The compressor of claim 7, wherein the plurality of cantilever beams are uniformly spaced apart in a plurality of rows and columns on the same side of the central axis of the housing.
9. The compressor of claim 1, wherein a spacing between adjacent ones of the plurality of cantilevered beams remains unchanged.
10. The compressor of claim 1, wherein a plurality of said elastomers are disposed within said liquid.
11. The compressor of claim 1, wherein each of the elastomers is a hollow member.
12. The compressor of claim 1, wherein each of the elastomers is formed as a sphere.
13. The compressor of claim 1, wherein each of the elastomers is a rubber member.
14. The compressor of claim 1, wherein the vessel is a piece of rigid material.
15. The compressor of claim 1, wherein the liquid is engine oil.
16. The compressor of claim 1, wherein an upper end of the piston rod passes through the mount, and a portion of the piston rod passing out of the mount is provided with external threads that mate with a nut.
17. The compressor according to any one of claims 1 to 16, wherein an outer bottom wall of the container is provided with an upwardly concave fixing space, and an inner peripheral wall of the fixing space is provided with mating threads.
18. A refrigeration device comprising a compressor according to any one of claims 1 to 17.
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| CN201710736129.2A CN107355904B (en) | 2017-08-24 | 2017-08-24 | Compressor and refrigerating device with same |
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| CN201710736129.2A CN107355904B (en) | 2017-08-24 | 2017-08-24 | Compressor and refrigerating device with same |
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| CN107355904A CN107355904A (en) | 2017-11-17 |
| CN107355904B true CN107355904B (en) | 2023-11-03 |
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| CN110173469A (en) * | 2019-04-26 | 2019-08-27 | 武汉麦康德设备有限公司 | A kind of petrol station horizontal pump group peculiar to vessel answers button-type vibration isolation gasket ring |
| CN110206763A (en) * | 2019-04-26 | 2019-09-06 | 武汉麦康德设备有限公司 | A kind of stand-type pump group of bunker oil answers button-type vibration isolation gasket ring |
| CN114718842B (en) * | 2021-01-06 | 2023-07-14 | 青岛海尔电冰箱有限公司 | Compressor damper and refrigerator |
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| KR101392541B1 (en) * | 2008-03-13 | 2014-05-07 | 엘지전자 주식회사 | Compressor fixation structure and outdoor unit for air conditioner comprising the same |
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| GB948822A (en) * | 1960-06-16 | 1964-02-05 | Microcell Ltd | Improvements in or relating to shock absorbers |
| JP2004028125A (en) * | 2002-06-21 | 2004-01-29 | Tokai Rubber Ind Ltd | Dynamic damper |
| CN1657775A (en) * | 2004-02-20 | 2005-08-24 | Lg电子株式会社 | Apparatus for absorbing vibration of compressor |
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