CN1667272A - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
CN1667272A
CN1667272A CNA2004100598702A CN200410059870A CN1667272A CN 1667272 A CN1667272 A CN 1667272A CN A2004100598702 A CNA2004100598702 A CN A2004100598702A CN 200410059870 A CN200410059870 A CN 200410059870A CN 1667272 A CN1667272 A CN 1667272A
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CN
China
Prior art keywords
break
elastic component
mass member
seal container
linearkompressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2004100598702A
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Chinese (zh)
Other versions
CN100366897C (en
Inventor
朴升一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Gwangju Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Gwangju Electronics Co Ltd filed Critical Samsung Gwangju Electronics Co Ltd
Publication of CN1667272A publication Critical patent/CN1667272A/en
Application granted granted Critical
Publication of CN100366897C publication Critical patent/CN100366897C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • F04B35/045—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 using solenoids
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/02—Compressor arrangements of motor-compressor units
    • F25B31/023—Compressor arrangements of motor-compressor units with compressor of reciprocating-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/04—Frequency effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/22—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2234/00—Shape
    • F16F2234/06—Shape plane or flat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs
    • F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/073—Linear compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations

Abstract

A linear compressor having a dynamic vibration-reducing unit, which is provided at a stopper, by which separation of a cylinder block is prevented, for eliminating vibration generated from a hermetically sealed container at a specific frequency band. The dynamic vibration-reducing unit comprises an elastic member disposed at the lower end of the stopper, and a mass member fixed to the bottom part of the elastic member. The elastic member is formed in the shape of a spiral plate. The elastic member is provided at the center part thereof with a through-hole, which corresponds to an opening of the stopper. The elastic member is provided symmetrically at both ends thereof with fixing parts for fixing the mass member. The mass member is formed in the shape of a plate. The mass member is provided at the center part thereof with a hollow part, which corresponds to the through-hole of the elastic member. Through the hollow part of the mass member are inserted supporting parts of the stopper frame. Both sides of the mass member are symmetrical to each other centering on the hollow part so that both ends of the mass member are fixed to the fixing parts of elastic member by means of welding or bolts.

Description

Linearkompressor
Technical field
The present invention relates to Linearkompressor, relate in particular to and a kind ofly can eliminate the Linearkompressor that is passed to the vibration of seal container because of the to-and-fro motion of piston, described vibration results from specific frequency band.
Background technique
Usually, Linearkompressor is used to compress the refrigeration agent such as the cooling unit of refrigerator or air-conditioning.Linearkompressor is provided with linear electric machine, and described linear electric machine linear reciprocating motion is as the driver element that is used to move back and forth piston.
Linearkompressor comprises: the cylinder block that wherein limits pressing chamber; Piston, it is arranged in the pressing chamber of cylinder block, so that piston moves back and forth; Cylinder head wherein has and is used to import the inlet of refrigeration agent and the room of outlet of discharging refrigerant; And valve cell, it is arranged between cylinder block and the cylinder head, is used to control the importing and the discharge of refrigeration agent.
Linear electric machine comprises as the driver element that is used to move back and forth piston: moving member, and the one side is connected on the piston, and opposite side is equipped with the cylindrical permanent magnet around cylinder block; Inner stator, it is arranged on the inboard of moving member regularly; And external stator, it is arranged on the outside of moving member regularly.
In the conventional linear compressor of said structure, when providing Ac, between external stator and inner stator, produce magnetic field for external stator.Because being provided to the electric current of external stator is Ac, the polarity in magnetic field is periodic variation.As a result, have the moving member to-and-fro motion in vertical direction of permanent magnet.Simultaneously, the piston that is connected to moving member in pressing chamber to-and-fro motion with compressed refrigerant.At this moment, because of the to-and-fro motion of piston is passed to seal container in the vibration that special frequency band produces, thereby cause the seal container vibration.This vibration of seal container is the main cause of compressor noise.
Summary of the invention
Therefore, an aspect of of the present present invention provides a kind of Linearkompressor with dynamic vibration-reducing unit, and described dynamic vibration-reducing unit is used to eliminate the vibration that is produced from the seal container at special frequency band.
According to an aspect of the present invention, provide a kind of Linearkompressor, described Linearkompressor comprises: the seal container that wherein has airtight space; Cylinder block, it is arranged in the seal container, is limited with pressing chamber in the described cylinder block; Be fixed to the break frame on the cylinder block; Break, it is arranged in the seal container, is used to support the break frame; And dynamic vibration-reducing unit, it is arranged on the break, is used to eliminate at special frequency band by vibration that seal container produced.
Preferably, dynamic vibration-reducing unit comprises: elastic component, and it is fixed on the break; And mass member, it is fixed on the elastic component.
Preferably, an end of break is fixed on the seal container, and the other end of break is provided with opening, the break frame inserts by described opening, elastic component is provided with through hole, and the break frame inserts by described through hole, and described through hole is corresponding with the opening of break.
Preferably, elastic component forms the spiral plate shape, and through hole is formed at the core of elastic component.
Preferably, mass member forms tabular, and mass member is provided with the hollow space of corresponding break opening.
Preferably, the both sides of mass member are that the center is mutually symmetrical with the hollow space.
Preferably, elastic component and break form one, so that elastic component stretches out from an end of break.
Preferably, the elasticity coefficient of elastic component and the quality of mass member are set, so that be delivered to the characteristic frequency of seal container and the oscillation frequency of dynamic vibration-reducing unit corresponds to each other.
The accompanying drawing summary
With reference to accompanying drawing, by reading following detailed, above-mentioned aspect of the present invention and other characteristics and advantage will become clearer, wherein:
Fig. 1 shows the integrally-built sectional view according to Linearkompressor of the present invention;
Fig. 2 shows the perspective view that is arranged on the dynamic vibration-reducing unit on the Linearkompressor according to the preferred embodiment of the invention; With
Fig. 3 shows the perspective view that is arranged on the dynamic vibration-reducing unit on the Linearkompressor of another preferred embodiment according to the present invention.
Embodiment
Now with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.
Fig. 1 shows the integrally-built sectional view according to Linearkompressor of the present invention.As shown in Figure 1, Linearkompressor comprises: the seal container 10 that wherein has airtight space; Compression unit 20 is used to compress importing refrigeration agent wherein and discharges compressed refrigeration agent; And driver element, be used for drive compression unit 20.
Compression unit 20 comprises: have the cylinder block 21 of pressing chamber 21a, refrigeration agent is compressed in described pressing chamber 21a; Piston 22, it is arranged among the pressing chamber 21a, so that piston 22 to-and-fro motion; And cylinder head 23, it has 23a of inlet and the 23b of room of outlet.Between cylinder block 22 and cylinder head 23, be provided with valve cell 24, be used to control the importing of refrigeration agent.
Driver element 30 comprises: moving member 31, and it is with piston 22 to-and-fro motion; Inner stator 32, it is arranged on the inboard of moving member 31; And external stator 33, it is arranged on the outside of moving member 31.Preferably, driver element 30 is a linear electric machine.
Moving member 31 forms cylindrical shape.Moving member 31 comprises: cylindrical shape part 31a, the upper outside that is used to surround cylinder block 21; And standing part 31b, it is set to the coupling shaft 22a that is arranged on piston 22 upper ends coaxial, so that standing part 31b vertically moves back and forth with piston 22.Cylindrical shape part 31a is equipped with permanent magnet 31c integratedly, and described permanent magnet 31c cooperates with stator 32 and 33 electromagnetism, so that moving member 31 reciprocally moves.
Inner stator 32 and external stator 33 are separately positioned on the inboard and the outside of the cylindrical shape part 31a of moving member 31.Inner stator 32 forms cylindrical shape, and is fixed on the outer surface of cylinder block 21, is used to guide the up-and-down movement of moving member 31 and the magnetic flux flow of the stable permanent magnet 31c that passes through moving member 31 from external stator 33.Be tied with field coil 33a on external stator 33, being used for acting synergistically by the electromagnetism with the permanent magnet 31c of moving member 31 moves back and forth moving member 31.The lower end of external stator 33 is subjected to from the support of the outward extending supporting part 21b in the lower end of cylinder block 21, and the upper end of external stator 33 is subjected to the support of additional fastening frame 40.
External stator 33 is fixed by fixing frame 40, is disposed with on fixing frame 40: leaf spring 41, and it is formed by a plurality of stacked plates, so that the motion of piston can increase by the elasticity of stacked plate; And break frame 50, be used to prevent the separation of cylinder block 21.Break frame 50 is subjected to the support of break 60, and break 60 is fixed to the upper inside of seal container 10.
Break frame 50 comprises: a plurality of extensions 51, and it extends from fixing frame 40 with arc; And supporting part 52, its from the extension 51 extending end towards break 60 bendings.
Break 60 forms cylindrical shape.The upper end of break 60 is fixed on the internal surface of seal container 10.The lower end of break 60 is provided with opening 61, and the supporting part 52 by opening 61 break framves 50 is inserted into wherein.Break 60 is provided with dynamic vibration-reducing unit 70, is used to reduce the vibration of the special frequency band that produced by seal container.With reference to Fig. 2 dynamic vibration-reducing unit 70 is described below.
With reference to Fig. 2, dynamic vibration-reducing unit 70 comprises: elastic component 80, and it is arranged on the lower end of break 60; And mass member 90, it is fixed on the bottom of elastic component 80.
Elastic component 80 forms the spiral plate shape.The core of elastic component 80 is provided with through hole 81, and described through hole 81 is corresponding with the opening 61 of break 60.The supporting part 52 of break frame 50 inserts by the through hole 81 of elastic component 80.The two ends of elastic component 80 are symmetrically arranged with the standing part 82 that is used for fixing mass member 90.
Mass member 90 forms tabular.The core of mass member 90 is provided with the hollow space 91 of corresponding break 60 openings 61.The both sides of mass member 90 are that the center is mutually symmetrical with hollow space 91, so that the two ends of mass member 90 are fixed to the standing part of elastic component 80 by welding or bolt.
As shown in Figure 3, elastic component 80 forms one with break 60, so that elastic component 80 is protruding from the opening 61 of break 60.Mass member 90 is fixed to the bottom of elastic component 80 by welding or bolt.
Now, will describe according to the operation that has the Linearkompressor of said structure of the present invention.
When the coil 33a that gives external stator 33 provides alternating current (a.c.), between external stator 33 and inner stator 32, produce magnetic field.Because being provided to the electric current of external stator 33 is alternating current (a.c.), changes the polar cycle in magnetic field.As a result, the piston 22 that has the moving member 31 of permanent magnet 31c and be connected to moving member 31 in pressing chamber 21a moving back and forth with the electric current same frequency that is provided, thereby compressed refrigerant.At this moment, the vibration at special frequency band that produces because of the to-and-fro motion of piston 22 is passed to seal container 10.Eliminated the vibration that produces at special frequency band by the dynamic vibration-reducing unit 70 that is arranged on the break 60.
Especially, the elasticity coefficient of elastic component 80 and the quality of mass member 90 are set, so that the characteristic frequency of seal container 10 vibrations and the natural mode shape of dynamic vibration-reducing unit 70 correspond to each other.Therefore, the mass member 80 of dynamic vibration-reducing unit 70 moves relative to piston 22, and in this simultaneously, the phase place of mass member 80 is opposite with the phase place of piston 22, thereby seal container 10 has been eliminated in the vibration that special frequency band produced.
Can find out significantly that from top description the invention provides a kind of Linearkompressor that is arranged on the dynamic vibration-reducing unit on the break that has, described break is used to prevent the separation of cylinder block.Dynamic vibration-reducing unit comprises elastic component and mass member.
Therefore, eliminated to-and-fro motion because of piston in the vibration that is passed to seal container that special frequency band produced by mass member, described mass member moves relative to piston, and the phase place of mass member is opposite with the phase place of piston simultaneously, thereby compressor can be operated placidly.
And dynamic vibration-reducing unit and break form one, thereby have reduced the number of components of Linearkompressor, have improved compressor volume inside applicability.
Although for exemplary purposes preferred embodiments more of the present invention are disclosed, yet, it will be understood by those skilled in the art that under the situation that does not depart from disclosed scope of the present invention of claims and essence various variations, increase and alternative can also be arranged.

Claims (8)

1. Linearkompressor comprises:
Wherein limit the seal container of airtight space;
Cylinder block, it is arranged in the seal container, limits pressing chamber in the described cylinder block;
Be fixed to the break frame on the cylinder block;
Break, it is arranged in the seal container, is used to support the break frame; With
Dynamic vibration-reducing unit, it is arranged on the break, is used to eliminate at special frequency band by vibration that seal container produced.
2. Linearkompressor according to claim 1 is characterized in that dynamic vibration-reducing unit comprises:
Elastic component, it is fixed on the break; With
Mass member, it is fixed on the elastic component.
3. Linearkompressor according to claim 2 is characterized in that, an end of break is fixed on the seal container, and the other end of break is provided with opening, the break frame insert by described opening and
Wherein, elastic component is provided with through hole, and the break frame inserts by described through hole, and described through hole is corresponding with the opening of break.
4. Linearkompressor according to claim 3 is characterized in that described elastic component forms the spiral plate shape, and described through hole is formed at the core of elastic component.
5. Linearkompressor according to claim 2 is characterized in that mass member forms tabular, and mass member is provided with the hollow space of corresponding break opening.
6. Linearkompressor according to claim 5 is characterized in that, the both sides of mass member are that the center is mutually symmetrical with the hollow space.
7. Linearkompressor according to claim 2 is characterized in that, elastic component and break form one, so that elastic component is from the end extension of break.
8. Linearkompressor according to claim 2 is characterized in that, the elasticity coefficient of elastic component and the quality of mass member are set, so that it is corresponding each other to be delivered to the oscillation frequency of the characteristic frequency of seal container and dynamic vibration-reducing unit.
CNB2004100598702A 2004-03-09 2004-06-24 Linear compressor Expired - Fee Related CN100366897C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20040015797 2004-03-09
KR10-2004-0015797A KR100527176B1 (en) 2004-03-09 2004-03-09 Linear compressor

Publications (2)

Publication Number Publication Date
CN1667272A true CN1667272A (en) 2005-09-14
CN100366897C CN100366897C (en) 2008-02-06

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Country Status (6)

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US (1) US20050201875A1 (en)
JP (1) JP2005256833A (en)
KR (1) KR100527176B1 (en)
CN (1) CN100366897C (en)
BR (1) BRPI0402749A (en)
IT (1) ITTO20040469A1 (en)

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CN105518300A (en) * 2013-08-01 2016-04-20 惠而浦股份有限公司 Hermetic reciprocating compressor for mobile application provided with a movement limiting assembly
CN106286233A (en) * 2015-06-08 2017-01-04 珠海格力节能环保制冷技术研究中心有限公司 Cylinder assembly, compressor and air-conditioner
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CN105518300B (en) * 2013-08-01 2018-02-23 惠而浦股份有限公司 For the sealed reciprocating compressor with mobile limiter assembly movably applied
CN105317652A (en) * 2014-07-07 2016-02-10 Lg电子株式会社 Linear compressor and linear motor
US10205370B2 (en) 2014-07-07 2019-02-12 Lg Electronics Inc. Linear compressor and linear motor
CN106286233A (en) * 2015-06-08 2017-01-04 珠海格力节能环保制冷技术研究中心有限公司 Cylinder assembly, compressor and air-conditioner
US10584905B2 (en) 2016-05-03 2020-03-10 Lg Electronics Inc. Linear compressor
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