CN108386340B - Compressor and refrigeration equipment with same - Google Patents
Compressor and refrigeration equipment with same Download PDFInfo
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- CN108386340B CN108386340B CN201810236214.7A CN201810236214A CN108386340B CN 108386340 B CN108386340 B CN 108386340B CN 201810236214 A CN201810236214 A CN 201810236214A CN 108386340 B CN108386340 B CN 108386340B
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 8
- 230000009467 reduction Effects 0.000 claims abstract description 31
- 238000013016 damping Methods 0.000 claims description 59
- 230000001133 acceleration Effects 0.000 claims description 34
- 239000000806 elastomer Substances 0.000 claims description 26
- 229920001971 elastomer Polymers 0.000 claims description 25
- 238000004804 winding Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000006249 magnetic particle Substances 0.000 description 5
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/005—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a compressor and refrigeration equipment with the same, the compressor comprises: a housing; the cylinder body is arranged in the shell; and the vibration reduction part is arranged between the shell and the cylinder body. The compressor solves the problem that the compressor in the prior art is easy to vibrate.
Description
Technical Field
The invention relates to the field of compressors, in particular to a compressor and refrigeration equipment with the same.
Background
At present, piston compressors in the market basically exist in a single-cylinder structure, have smaller discharge capacity and are mainly used for equipment with smaller refrigerating capacity, such as refrigerators and the like. The main reasons are that the crank connecting rod mechanism exists between the crank connecting rod mechanism and the crank connecting rod mechanism, so that the structure is complex, and energy loss is caused. In addition, although there is a double-cylinder piston compressor which omits a crank-link mechanism and is directly driven by a secondary side of a linear motor, when the compressor works, the left-right movement inevitably generates vibration, so that not only the parts of the compressor are influenced, but also the comprehensive performance of the compressor is seriously influenced.
Disclosure of Invention
The invention mainly aims to provide a compressor and refrigeration equipment with the same, so as to solve the problem that the compressor in the prior art is easy to vibrate.
In order to achieve the above object, according to one aspect of the present invention, there is provided a compressor comprising: a housing; the cylinder body is arranged in the shell; and the vibration reduction part is arranged between the shell and the cylinder body.
Further, the vibration damping portion includes: the first vibration reduction assembly is at least partially arranged between the inner wall of the shell and the outer wall of the cylinder body.
Further, the first vibration reduction assembly includes: the elastic piece is arranged between the inner wall of the shell and the outer wall of the cylinder body.
Further, the elastic member is disposed between the inner end wall of the housing and the outer wall of the cylinder.
Further, the elastic member is a magnetorheological elastomer.
Further, the first vibration reduction assembly further includes: the acceleration sensor is arranged on the cylinder body and is used for acquiring an acceleration signal of the cylinder body; an electromagnetic coil arranged on the elastic member; the controller is connected with the acceleration sensor and the electromagnetic coil; the controller converts the acceleration signal into an electrical signal and transmits the electrical signal to the electromagnetic coil.
Further, the elastic piece is a cake-shaped body.
Further, the elastic pieces are multiple, and the elastic pieces are sequentially arranged along the axial direction of the cylinder body.
Further, two adjacent elastic members are connected.
Further, the elastic pieces are multiple, and the elastic pieces are arranged at intervals along the circumferential direction of the shell.
Further, the elastic pieces are arranged in a plurality of rows, and the plurality of rows of elastic pieces are sequentially arranged along the radial direction of the shell.
Further, the vibration damping portion further includes: the second vibration reduction assembly is arranged between the bottom end of the shell and the bottom wall of the cylinder body.
Further, the second vibration reduction assembly includes: a first magnetic body connected to the cylinder; the second magnetic body is connected with the shell; the first magnetic body and the second magnetic body are mutually exclusive, at least two second magnetic bodies are arranged, and the first magnetic body is arranged between the two second magnetic bodies.
Further, the number of the second magnetic bodies is two, the two second magnetic bodies are arranged at intervals along the axial direction of the cylinder body, and the first magnetic body is arranged between the two second magnetic bodies so as to limit the movement of the cylinder body along the axial direction of the cylinder body.
Further, the second vibration reduction assembly further includes: the first connecting part is connected with the cylinder body at a first end, and is connected with the first magnetic body at a second end, so that the first magnetic body is connected with the cylinder body through the first connecting part; and the first end of the second connecting part is connected with the shell, and the second end of the second connecting part is connected with the second magnetic body so that the second magnetic body is connected with the shell through the second connecting part.
Further, the second vibration reduction assembly further includes: and the sliding part is slidably arranged at the second end of the second connecting part and is positioned between the two second magnetic bodies, and the first magnetic body is connected with the sliding part.
Further, the second vibration reduction assembly further includes: the damping block is sleeved on the second connecting part; and the spring is sleeved at one end of the second connecting part close to the shell, and the spring is connected with the damping block.
Further, the second vibration reduction assemblies are a plurality of, and a plurality of second vibration reduction assemblies are arranged at intervals.
Further, the compressor further includes: a driving part, which is arranged in the shell; the driving part is in driving connection with the piston to drive the piston to move in the cylinder body.
Further, the driving part is a linear motor.
Further, the driving section includes: a primary iron core; a primary winding disposed on the primary core; the secondary rotor is connected with the piston; the primary iron core and the secondary rotor are oppositely arranged, so that after the linear motor is electrified, interaction force is generated between the primary iron core and the secondary rotor, and the secondary rotor drives the piston to move under the action of the interaction force.
Further, the number of the pistons is two, the two pistons are respectively arranged at two ends of the secondary rotor, the number of the cylinder bodies is two, and the two pistons are respectively arranged in the two cylinder bodies.
Further, the number of the two cylinders is two, and the two cylinders are arranged in the shell at intervals.
According to another aspect of the present invention, there is provided a refrigeration appliance comprising a compressor, the compressor being the compressor described above.
The compressor of the invention can restrain the vibration of the cylinder body during the operation of the compressor by arranging the vibration reduction part between the shell and the cylinder body. Wherein, the cylinder body sets up in the casing. According to the compressor, the vibration reduction part is arranged between the shell and the cylinder body, so that the vibration of the cylinder body in the operation process of the compressor can be restrained, and the problem that the compressor in the prior art is easy to vibrate is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a compressor according to the present invention;
fig. 2 shows a schematic structural view of a second vibration damping assembly of a compressor according to the present invention.
Wherein the above figures include the following reference numerals:
10. a housing; 20. a cylinder; 21. an air inlet; 22. an air inlet cavity; 221. an intake valve; 23. an exhaust chamber; 231. an exhaust valve; 24. an exhaust port; 30. a first vibration damping assembly; 31. an elastic member; 32. an acceleration sensor; 33. an electromagnetic coil; 34. a controller; 35. a flange; 40. a second vibration damping assembly; 41. a first magnetic body; 42. a second magnetic body; 43. a first connection portion; 44. a second connecting portion; 45. a sliding part; 46. a damping block; 47. a spring; 50. a driving section; 51. a primary iron core; 52. a primary winding; 53. a secondary mover; 54. a motor housing; 60. a piston; 70. an air inlet pipe; 80. and an exhaust pipe.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
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 in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The present invention provides a compressor, please refer to fig. 1, the compressor includes: a housing 10; a cylinder 20, the cylinder 20 being disposed within the housing 10; damping portion, damping portion sets up between casing 10 and cylinder body 20.
The compressor of the present invention can suppress the vibration of the cylinder 20 during the operation of the compressor by providing the vibration damping portion between the housing 10 and the cylinder 20. Wherein a cylinder 20 is disposed within the housing 10. The compressor of the invention can restrain the vibration of the cylinder body 20 in the running process of the compressor by arranging the vibration reduction part between the shell 10 and the cylinder body 20, thereby solving the problem that the compressor in the prior art is easy to vibrate.
As shown in fig. 1, the vibration damping portion includes: first vibration damping assembly 30, at least a portion of first vibration damping assembly 30 is disposed between an inner wall of housing 10 and an outer wall of cylinder 20.
In the present embodiment, the vibration damping portion includes the first vibration damping assembly 30, and by disposing at least part of the first vibration damping assembly 30 between the inner wall of the casing 10 and the outer wall of the cylinder 20, the vibration of the cylinder 20 during operation of the compressor can be suppressed.
In order to be able to suppress the vibration of the cylinder 20 during operation of the compressor by means of the first vibration damping assembly 30, as shown in fig. 1, the first vibration damping assembly 30 includes: the elastic member 31, the elastic member 31 is disposed between the inner wall of the housing 10 and the outer wall of the cylinder 20.
In the present embodiment, by providing the elastic member 31 on the first vibration damping assembly 30, wherein the elastic member 31 is provided between the inner wall of the housing 10 and the outer wall of the cylinder 20. Vibration generated from the cylinder 20 can be relieved by the vibration damping action of the elastic member 31.
For a specific arrangement position of the elastic member 31, the elastic member 31 is arranged between the inner end wall of the housing 10 and the outer wall of the cylinder 20.
Preferably, the elastic member 31 is a magnetorheological elastomer.
The magneto-rheological elastomer (Magnetorheological Elasto-mer, MRE) mainly comprises a matrix material and magnetic particles dispersed therein, and is a novel magneto-rheological material prepared by dispersing the magnetic particles in a solid or gel matrix and curing the magnetic particles. The magnetorheological elastomer well solves the problem of particle sedimentation of magnetorheological fluid, and a sealing device for keeping the magnetorheological material in a working position is not needed.
The intelligent material-magnetorheological elastomer is utilized, and when no external magnetic field acts, the magnetic particles in the intelligent material are in an unordered state and do not show a magnetorheological effect, so that the intelligent material can be used as a passive vibration damper. When current is applied to the coil, an electromagnetic field is generated around the magnetorheological elastomer, at the moment, internal magnetorheological particles are distributed in a regular chain shape, the magnetorheological effect is presented, the intensity of the generated electromagnetic field is changed by changing the current, the damping characteristic of the magnetorheological elastomer is further changed, the real-time control of horizontal vibration generated in the running process of the compressor is realized, and the running of the compressor is more stable.
Considering that the elastic member 31 is a magnetorheological elastomer, in order to enable the magnetorheological elastomer to realize an active vibration damping function, as shown in fig. 1, the first vibration damping assembly 30 further includes: an acceleration sensor 32, the acceleration sensor 32 is arranged on the cylinder 20, and the acceleration sensor 32 is used for acquiring an acceleration signal of the cylinder 20; an electromagnetic coil 33, the electromagnetic coil 33 being provided on the elastic member 31; the controller 34, the controller 34 is connected with the acceleration sensor 32 and the electromagnetic coil 33; wherein the controller 34 converts the acceleration signal into an electrical signal and transmits the electrical signal to the electromagnetic coil 33.
In this embodiment, the first vibration damping assembly 30 further includes an acceleration sensor 32, an electromagnetic coil 33, and a controller 34, wherein the acceleration sensor 32 is disposed on the cylinder 20, the acceleration sensor 32 is used to acquire an acceleration signal of the cylinder 20 when the cylinder 20 vibrates, the electromagnetic coil 33 is wound around the circumference of the elastic member 31, the controller 34 is connected to both the acceleration sensor 32 and the electromagnetic coil 33, and when the acceleration sensor 32 acquires the acceleration signal of the cylinder 20, the acceleration signal is transmitted to the controller 34, and the controller 34 converts the acceleration signal into an electrical signal and transmits the electrical signal to the electromagnetic coil 33. When current is applied to the coil (electromagnetic coil 33), an electromagnetic field is generated around the magnetorheological elastomer, at the moment, internal magnetorheological particles are distributed in a regular chain shape, the magnetorheological effect is presented, the intensity of the generated electromagnetic field is changed by changing the current, the damping characteristic of the magnetorheological elastomer is further changed, the real-time control of horizontal vibration generated in the operation process of the compressor is realized, and the operation of the compressor is more stable.
In the present embodiment, the acceleration sensor 32 acquires the magnitude of the acceleration signal of the cylinder 20 to effect a change in the current fed to the electromagnetic coil 33.
Preferably, the elastic member 31 is a cake-shaped body.
In order to achieve a better vibration reduction effect, the elastic members 31 are plural, and the plural elastic members 31 are sequentially provided along the axial direction of the cylinder 20.
Accordingly, two adjacent elastic members 31 are connected.
In the present embodiment, alternatively, two adjacent elastic members 31 are connected.
Alternatively, there is no connection between two adjacent elastic members 31.
For the specific distribution position of the elastic members 31, the elastic members 31 are plural, and the plural elastic members 31 are arranged at intervals along the circumferential direction of the housing 10.
Alternatively, the elastic members 31 are provided in a plurality of rows, and the plurality of rows of elastic members 31 are disposed in sequence in the radial direction of the housing 10.
Alternatively, the elastic members 31 are plural, and the plural elastic members 31 are disposed in order along the radial direction of the housing 10.
Optionally, the first vibration damping assembly 30 further includes: the flange 35, the first end of the flange 35 is connected with the cylinder 20, and the second end of the flange 35 is connected with the elastic member 31, so that the elastic member 31 is connected with the cylinder 20 through the flange 35.
In order to be able to further reduce the vibration of the cylinder 20, as shown in fig. 1, the vibration reducing portion further includes: and a second vibration reducing assembly 40, the second vibration reducing assembly 40 being disposed between the bottom end of the housing 10 and the bottom wall of the cylinder 20.
In the present embodiment, the vibration damping portion further includes a second vibration damping assembly 40, wherein the second vibration damping assembly 40 is disposed between the bottom end of the housing 10 and the bottom wall of the cylinder 20. Vibration of the cylinder 20 generated during operation of the compressor can be further alleviated by the second vibration reduction assembly 40 disposed between the bottom end of the housing 10 and the bottom wall of the cylinder 20.
With respect to the specific structure of the second vibration reduction assembly 40, as shown in fig. 2, the second vibration reduction assembly 40 includes: a first magnetic body 41, the first magnetic body 41 being connected to the cylinder 20; a second magnetic body 42, the second magnetic body 42 being connected to the housing 10; the first magnetic body 41 and the second magnetic body 42 repel each other, and at least two second magnetic bodies 42 are provided, and the first magnetic body 41 is provided between the two second magnetic bodies 42.
In the present embodiment, the first magnetic body 41 and the second magnetic body 42 are provided in the second damper assembly 40, and the first magnetic body 41 is connected to the cylinder 20, and the second magnetic body 42 is connected to the housing 10.
In the present embodiment, the first magnetic body 41 and the second magnetic body 42 repel each other, that is, the first magnetic body 41 and the second magnetic body 42 are homopolar magnetic bodies, or the first magnetic body 41 and the second magnetic body 42 are homopolar opposing each other.
In the present embodiment, at least two second magnetic bodies 42 are provided, and the first magnetic body 41 is provided between the two second magnetic bodies 42, so that the first magnetic body 41 and the second magnetic body 42 can be prevented from approaching each other, considering that the first magnetic body 41 and the second magnetic body 42 repel each other, that is, the vibration preventing effect on the cylinder 20 is achieved.
Preferably, there are two second magnetic bodies 42, the two second magnetic bodies 42 are disposed at intervals along the axial direction of the cylinder 20, and the first magnetic body 41 is disposed between the two second magnetic bodies 42 to restrict the movement of the cylinder 20 along the axial direction of the cylinder 20.
In the present embodiment, the number of the second magnetic bodies 42 is two, and the two second magnetic bodies 42 are arranged at intervals along the axial direction of the cylinder 20, and by arranging the first magnetic body 41 between the two second magnetic bodies 42, the movement of the cylinder 20 along the axial direction of the cylinder 20 can be restricted, and the vibration of the cylinder 20 during the operation of the compressor can be reduced to the maximum extent.
For the specific arrangement of the first magnetic body 41 and the second magnetic body 42, as shown in fig. 2, the second vibration damping assembly 40 further includes: a first connection part 43, a first end of the first connection part 43 being connected to the cylinder 20, and a second end of the first connection part 43 being connected to the first magnetic body 41 such that the first magnetic body 41 is connected to the cylinder 20 through the first connection part 43; and a second connection part 44, the first end of the second connection part 44 being connected to the housing 10, and the second end of the second connection part 44 being connected to the second magnetic body 42 such that the second magnetic body 42 is connected to the housing 10 through the second connection part 44.
In the present embodiment, the second vibration damping assembly 40 further includes a first connecting portion 43 and a second connecting portion 44, wherein a first end of the first connecting portion 43 is connected to the cylinder 20, a second end of the first connecting portion 43 is connected to the first magnetic body 41, such that the first magnetic body 41 is connected to the cylinder 20 through the first connecting portion 43, a first end of the second connecting portion 44 is connected to the housing 10, and a second end of the second connecting portion 44 is connected to the second magnetic body 42, such that the second magnetic body 42 is connected to the housing 10 through the second connecting portion 44.
In order to prevent the first magnetic body 41 from rigidly contacting the second connecting portion 44, as shown in fig. 2, the second vibration damping assembly 40 further includes: and a sliding portion 45, wherein the sliding portion 45 is slidably disposed at a second end of the second connecting portion 44 and is located between the two second magnetic bodies 42, and the first magnetic body 41 is connected to the sliding portion 45.
In the present embodiment, by providing the sliding portion 45 on the second vibration damping module 40, the sliding portion 45 is slidably provided at the second end of the second connecting portion 44 and between the two second magnetic bodies 42, so that the first magnetic body 41 can be connected to the sliding portion 45, and the first magnetic body 41 is movably provided on the second connecting portion 44 through the sliding portion 45.
In order to enable longitudinal vibration damping of the cylinder block 20, the second vibration damping assembly 40 further comprises: the damping block 46, the damping block 46 is sleeved on the second connecting part 44; the spring 47, the spring 47 cover is established in the one end that is close to the casing 10 of second connecting portion 44, and the spring 47 is connected with damping piece 46.
Preferably, the second vibration damping assemblies 40 are plural, and the plural second vibration damping assemblies 40 are disposed at intervals.
Considering a specific operation process of the compressor, as shown in fig. 1, the compressor further includes: a driving section 50, the driving section 50 being provided in the housing 10; the piston 60, the driving part 50 is drivingly connected to the piston 60 to drive the piston 60 to move within the cylinder 20.
Preferably, the driving part 50 is a linear motor.
When the driving part 50 is a linear motor, the driving part 50 includes: a primary core 51; a primary winding 52, the primary winding 52 being provided on the primary core 51; a secondary mover 53, the secondary mover 53 being connected to the piston 60; the primary core 51 and the secondary mover 53 are disposed opposite to each other, so that an interaction force occurs between the primary core 51 and the secondary mover 53 after the linear motor is energized, so that the secondary mover 53 drives the piston 60 to move under the interaction force.
In the present embodiment, the secondary mover 53 is provided to penetrate inside the primary core 51.
Optionally, the driving part 50 further includes: the motor housing 54, both ends of the motor housing 54 are respectively connected with the two cylinders 20, and the primary core 51, the primary winding 52 and the secondary mover 53 are all disposed in the motor housing 54.
Preferably, the number of the pistons 60 is two, the two pistons 60 are respectively arranged at two ends of the secondary mover 53, the number of the cylinders 20 is two, and the two pistons 60 are respectively arranged in the two cylinders 20.
Preferably, there are two cylinders 20, and the two cylinders 20 are disposed in the housing 10 at intervals.
In this embodiment, the compressor is a two-cylinder compressor.
The invention provides a brand new active damping type linear motor double-cylinder piston compressor based on a magnetorheological elastomer.
The piston compressor mainly comprises an exhaust pipe 80, an electromagnetic coil 33, a magnetorheological elastomer (elastic piece 31), a connecting bolt, an air inlet pipe 70, a shell 10, a controller 34, a flange 35, an air inlet 21, an air inlet valve 221, an acceleration sensor 32, a cylinder body 20, a linear motor shell 54, a primary iron core 51, a primary winding 52, a secondary rotor 53, homopolar magnets, a hard damping block 46, a spring 47, a fixing screw (a second connecting part 44 comprises a fixing screw and a pressing plate), a sliding bearing (a sliding part 45), a connecting piece (a first connecting part 43), a piston 60, an exhaust valve 231, an exhaust port 24, an exhaust cavity 23 and an air inlet cavity 22.
The air inlet valve 221 is communicated with the air inlet cavity 22, the air inlet 21 is communicated with the air inlet cavity 22, wherein the left and right air inlet are respectively connected with the air inlet pipe 70 through respective pipelines, the air outlet valve 231 is communicated with the air outlet cavity 23, the air outlet 24 is communicated with the air outlet cavity 23, and the left and right air outlet 24 are respectively connected with the air outlet pipe 80 through respective pipelines.
The linear motor housing is connected with the cylinder body 20 by bolts, the outer diameter of the primary iron core 51 is equal to that of the piston 60, so that the linear motor housing is convenient to disassemble, and the secondary rotor 53 is rigidly connected with the piston 60.
The cylinder 20 is connected to the magnetorheological elastomer by a flange 35, wherein an acceleration sensor 32 is mounted on the cylinder 20.
The magnetorheological elastomer is designed into a cake-shaped structure, the left end and the right end of the magnetorheological elastomer are respectively and rigidly connected with the shell 10 and the flange 35, so that a certain vibration reduction effect is achieved, the electromagnetic coil 33 is wound around the circumference of the magnetorheological elastomer, the controller 34 is arranged on the electromagnetic coil 33, the electromagnetic induction coil and the acceleration sensor 32 are connected to the controller 34, the acceleration signal transmitted by the acceleration sensor 32 is collected by the controller 34, and the current input to the electromagnetic coil 33 is controlled through analysis and treatment, so that the magnetic field intensity acting on the magnetorheological elastomer is changed, and the real-time control of the magnetorheological elastomer is realized.
The cylinder bottom connecting device mainly comprises homopolar magnets (a first magnetic body 41 and a second magnetic body 42), a hard damping block 46, a spring 47, fixing screws, a sliding bearing, a pressing plate and a connecting piece. The connecting piece is rigidly connected with the first magnetic body 41, wherein the first magnetic body 41 is fixed on a sliding bearing, the sliding bearing is fixedly connected with a hard damping block through a pressing plate, the hard damping block is slightly higher than a fixing screw, the hard damping block is fixed on a spring, the hard damping block and the spring are sleeved on the fixing screw, the fixing screw is rigidly connected with a compressor shell, the hard damping block is designed into a cake-shaped structure, the spring stiffness is high, and the effect of slight buffering is achieved.
The specific implementation process of the invention comprises the following steps: the primary winding 52 of the linear motor is electrified, the secondary rotor 53 reciprocates left and right, and the secondary rotor 53 is directly and rigidly connected with the piston 60, so that the piston 60 is driven to reciprocate left and right, refrigerant gas which is input by the air inlet pipe 70 through the air inlet 21, the air inlet cavity 22 and the air inlet valve 221 is compressed, and the compressed refrigerant gas further reaches the exhaust pipe 80 through the exhaust valve 231 and the exhaust cavity 23 to be exhausted, so that one working cycle of the refrigerant gas is completed. However, the piston compressor of this structure generates vibration in the horizontal and vertical directions during operation, and particularly vibration in the horizontal direction is particularly strong. When the piston compressor is operated, the controller 34 collects the signals of the acceleration sensor 32 mounted on the cylinder 20 in real time in the horizontal direction, the controller 34 is analyzed to calculate the real-time control current required by the magnetorheological elastomer at the moment, the magnetic field intensity acting on the magnetorheological elastomer is changed by changing the current of the electromagnetic coil 33, and then the physical form of magnetic particles in the magnetorheological elastomer is changed, so that the damping of the magnetorheological elastomer is changed, and the real-time control of horizontal vibration generated in the operation process of the compressor is realized, so that the operation of the compressor is more stable.
On the other hand, in order to meet the requirement of the movement of the whole structure in the horizontal direction, the cylinder bottom connecting device is specially designed, the homopolar magnet is rigidly connected below the connecting piece, the first magnetic body 41 is rigidly connected with the sliding bearing, meanwhile, the other two second magnetic bodies 42 are designed at the left end and the right end of the first magnetic body 41, and when the compressor operates, the first magnetic body 41 horizontally slides, and meanwhile, the second magnetic body 42 can also play a role of utilizing the magnetic force which is larger in the opposite direction, so that the vibration is smaller, and the function of stabilizing the correct position can be played even under the condition of no movement.
In the vertical direction, the hard damping block is arranged on the spring, and when tiny vibration exists, the hard damping block can damp, the spring plays a role in buffering, and the damping block and the spring are combined for use, so that the damping effect is better.
The invention also provides refrigeration equipment which comprises the compressor.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the compressor of the present invention can suppress the vibration of the cylinder 20 during the operation of the compressor by providing the vibration damping portion between the housing 10 and the cylinder 20. Wherein a cylinder 20 is disposed within the housing 10. The compressor of the invention can restrain the vibration of the cylinder body 20 in the running process of the compressor by arranging the vibration reduction part between the shell 10 and the cylinder body 20, thereby solving the problem that the compressor in the prior art is easy to vibrate.
The active vibration reduction type linear motor double-cylinder piston compressor based on the magnetorheological elastomer can generate real-time control of horizontal vibration in the operation process, so that the noise and vibration are smaller, the stability is more stable, and the reliability is higher.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. A compressor, comprising:
a housing (10);
a cylinder (20), the cylinder (20) being disposed within the housing (10);
a vibration reduction portion comprising a first vibration reduction assembly (30) and a second vibration reduction assembly (40);
the first vibration reduction assembly (30) comprises an elastic piece (31), an acceleration sensor (32), an electromagnetic coil (33) and a controller (34), wherein the elastic piece (31) is arranged between the inner wall of the shell (10) and the outer wall of the cylinder body (20), and the elastic piece (31) is a magnetorheological elastomer; the acceleration sensor (32) is arranged on the cylinder body (20), and the acceleration sensor (32) is used for acquiring an acceleration signal of the cylinder body (20); the electromagnetic coil (33) is arranged on the elastic piece (31); the controller (34) is connected with the acceleration sensor (32) and the electromagnetic coil (33); -the controller (34) converts the acceleration signal into an electrical signal and transmits the electrical signal to the electromagnetic coil (33);
the second vibration reduction assembly (40) is arranged between the bottom end of the shell (10) and the bottom wall of the cylinder body (20);
the second vibration damping assembly (40) comprises a first magnetic body (41), a second magnetic body (42), a second connecting part (44) and a sliding part (45), wherein the first magnetic body (41) is connected with the cylinder body (20), and the second magnetic body (42) is connected with the shell (10); the first magnetic body (41) and the second magnetic body (42) are mutually exclusive, at least two second magnetic bodies (42) are arranged, and the first magnetic body (41) is arranged between the two second magnetic bodies (42);
a first end of the second connecting part (44) is connected with the shell (10), and a second end of the second connecting part (44) is connected with the second magnetic body (42) so that the second magnetic body (42) is connected with the shell (10) through the second connecting part (44); the sliding part (45) is slidably arranged at the second end of the second connecting part (44) and is positioned between the two second magnetic bodies (42), and the first magnetic body (41) is connected with the sliding part (45).
2. Compressor according to claim 1, characterized in that the elastic element (31) is arranged between the inner end wall of the housing (10) and the outer wall of the cylinder (20).
3. Compressor according to claim 1, characterized in that the elastic element (31) is a pie-shaped body.
4. A compressor according to claim 1 or 3, wherein the number of the elastic members (31) is plural, and the plural elastic members (31) are sequentially arranged in the axial direction of the cylinder (20).
5. Compressor according to claim 4, characterized in that two adjacent elastic elements (31) are connected.
6. Compressor according to claim 1, wherein the number of elastic members (31) is plural, and the plurality of elastic members (31) are arranged at intervals along the circumferential direction of the casing (10).
7. Compressor according to claim 6, wherein the elastic elements (31) are arranged in a plurality of rows, the rows of elastic elements (31) being arranged in succession along the radial direction of the casing (10).
8. The compressor according to claim 1, wherein the number of the second magnetic bodies (42) is two, the two second magnetic bodies (42) are provided at intervals in the axial direction of the cylinder (20), and the first magnetic body (41) is provided between the two second magnetic bodies (42) to restrict the movement of the cylinder (20) in the axial direction of the cylinder (20).
9. The compressor of claim 1, wherein the second vibration reduction assembly (40) further comprises:
and a first connecting portion (43), wherein a first end of the first connecting portion (43) is connected to the cylinder (20), and a second end of the first connecting portion (43) is connected to the first magnetic body (41) so that the first magnetic body (41) is connected to the cylinder (20) through the first connecting portion (43).
10. The compressor of claim 9, wherein the second vibration reduction assembly (40) further comprises:
a damping block (46), wherein the damping block (46) is sleeved on the second connecting part (44);
and the spring (47) is sleeved at one end, close to the shell (10), of the second connecting part (44), and the spring (47) is connected with the damping block (46).
11. The compressor according to any one of claims 1 to 10, wherein the second vibration reduction assemblies (40) are plural, and the plural second vibration reduction assemblies (40) are disposed at intervals.
12. The compressor of claim 1, further comprising:
a driving unit (50), wherein the driving unit (50) is disposed in the housing (10);
and the driving part (50) is in driving connection with the piston (60) to drive the piston (60) to move in the cylinder body (20).
13. Compressor according to claim 12, characterized in that the drive (50) is a linear motor.
14. The compressor according to claim 13, wherein the driving part (50) includes:
a primary core (51);
-a primary winding (52), said primary winding (52) being arranged on said primary core (51);
a secondary mover (53), the secondary mover (53) being connected to the piston (60);
the primary iron core (51) and the secondary rotor (53) are oppositely arranged, so that after the linear motor is electrified, interaction force is generated between the primary iron core (51) and the secondary rotor (53), and the secondary rotor (53) drives the piston (60) to move under the action of the interaction force.
15. Compressor according to claim 14, wherein the number of pistons (60) is two, the two pistons (60) are respectively arranged at two ends of the secondary mover (53), the number of cylinders (20) is two, and the two pistons (60) are respectively arranged in the two cylinders (20).
16. Compressor according to claim 1, characterized in that said cylinders (20) are two, two of said cylinders (20) being arranged at intervals inside said casing (10).
17. A refrigeration device comprising a compressor, wherein the compressor is a compressor as claimed in any one of claims 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236214.7A CN108386340B (en) | 2018-03-21 | 2018-03-21 | Compressor and refrigeration equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236214.7A CN108386340B (en) | 2018-03-21 | 2018-03-21 | Compressor and refrigeration equipment with same |
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| Publication Number | Publication Date |
|---|---|
| CN108386340A CN108386340A (en) | 2018-08-10 |
| CN108386340B true CN108386340B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810236214.7A Active CN108386340B (en) | 2018-03-21 | 2018-03-21 | Compressor and refrigeration equipment with same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356812B (en) * | 2018-10-25 | 2024-06-07 | 珠海格力电器股份有限公司 | Refrigerating equipment and compressor thereof |
| CN110017258A (en) * | 2019-05-20 | 2019-07-16 | 台州市星亚科技股份有限公司 | A kind of straight line air compressor machine |
| CN110905963B (en) * | 2019-12-04 | 2025-02-28 | 珠海格力电器股份有限公司 | Vibration damping device and refrigeration system |
| TWI831065B (en) | 2020-10-27 | 2024-02-01 | 英屬開曼群島商鴻騰精密科技股份有限公司 | Electrical connector |
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| CN2097293U (en) * | 1990-11-08 | 1992-02-26 | 徐福辉 | Line-frequency wave-dividing type energy-saving compressor |
| CN101126430A (en) * | 2007-09-18 | 2008-02-20 | 重庆大学 | Parallel vibration isolation buffer based on magnetorheological technology |
| CN103184749A (en) * | 2013-03-14 | 2013-07-03 | 北京工业大学 | Base isolation non-contact limit system |
| CN206571876U (en) * | 2016-12-08 | 2017-10-20 | 长春市苏伟磁悬浮技术研究所 | A kind of magnetic suspension shock absorber |
| CN208236598U (en) * | 2018-03-21 | 2018-12-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
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| CN2097293U (en) * | 1990-11-08 | 1992-02-26 | 徐福辉 | Line-frequency wave-dividing type energy-saving compressor |
| CN101126430A (en) * | 2007-09-18 | 2008-02-20 | 重庆大学 | Parallel vibration isolation buffer based on magnetorheological technology |
| CN103184749A (en) * | 2013-03-14 | 2013-07-03 | 北京工业大学 | Base isolation non-contact limit system |
| CN206571876U (en) * | 2016-12-08 | 2017-10-20 | 长春市苏伟磁悬浮技术研究所 | A kind of magnetic suspension shock absorber |
| CN208236598U (en) * | 2018-03-21 | 2018-12-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigeration equipment with it |
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| CN108386340A (en) | 2018-08-10 |
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