CN1862016A - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
CN1862016A
CN1862016A CNA2005101369565A CN200510136956A CN1862016A CN 1862016 A CN1862016 A CN 1862016A CN A2005101369565 A CNA2005101369565 A CN A2005101369565A CN 200510136956 A CN200510136956 A CN 200510136956A CN 1862016 A CN1862016 A CN 1862016A
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CN
China
Prior art keywords
cylinder body
inner core
absorbing
around
piston
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
CNA2005101369565A
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Chinese (zh)
Other versions
CN100420851C (en
Inventor
金炯锡
许钟泰
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LG Electronics Inc
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LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1862016A publication Critical patent/CN1862016A/en
Application granted granted Critical
Publication of CN100420851C publication Critical patent/CN100420851C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

Disclosed herein is a linear compressor having a shock-absorbing member interposed between a cylinder and an inner core. The shock-absorbing member acts to absorb external force generated when the inner core is press fitted around the cylinder, thereby preventing deformation of the cylinder.

Description

Linearkompressor
Technical field
The present invention relates to a kind of Linearkompressor, particularly relate to a kind of like this Linearkompressor, wherein the absorbing element is inserted between cylinder body and the inner core, so that inner core is press-fitted in around the cylinder body with the absorbing serviceability.
Background technique
Usually, Linearkompressor is such equipment, and it makes piston in the to-and-fro motion of cylinder body internal linear by means of the linear driving force by linear electric machine, to suck, to compress and to discharge fluid.
Fig. 1 is the longitdinal cross-section diagram of existing Linearkompressor.
As shown in Figure 1, existing Linearkompressor comprises: seal container 2, working fluid import its neutralization from wherein discharging; Compression unit, it is installed in the seal container 2, is used for compression working fluid.
Compression unit comprises: cylinder body 10 is configured to receive working fluid from the fluid suction pipe 4 that is arranged on the seal container 2; Piston 12, thus cylinder body 10 neutral line to-and-fro motion compression working fluids be installed in; Linear electric machine 20 with reciprocal driven plunger 12.
The exhaust unit 16 that comprises escape cock 16 ' is connected with cylinder body.Escape cock 16 ' is used for the working fluid in cylinder body 10 compressions is disposed in the fluid discharge pipe 6 that is arranged on the seal container 2.
Piston 12 inside are formed with working fluid passage 12 ' so that working fluid is imported cylinder body 10 from fluid suction pipe 4.Suction valve 18 is connected with an end of the piston 12 that is arranged in cylinder body 10, to open and close working fluid passage 12 '.
Thereby linear electric machine 20 totally be divided into stator and with the mover of stator electromagnetic interaction linear reciprocating motion.
Stator comprises: inner core 21 is force-fitted in around the cylinder body 10; Be positioned at inner core annular, outer iron core 22 on every side; Be arranged in the outer core 22, be used to produce the coil 23 in magnetic field.
As shown in Figure 2, inner core 21 assembling during linear electric machine 20 usually by hydraulic press and cylinder body 10 drive fits.
Mover comprises: magnet 25, between inner core 21 and outer core 22; With magnet framework 26, magnet 25 is connected on the piston 12.
Compression unit is arranged on cylinder seat 30 and is installed between the bonnet 32 of seal container 2 offsides.Cylinder seat 30 and bonnet 32 are all supported by vibration damper 34.
Below, will explain the work of the existing Linearkompressor of aforementioned arrangements in detail.
If on linear electric machine 20, apply electric power, under effect from the reciprocal driving force of linear electric machine 20, piston 12 to-and-fro motion in the cylinder body 10.Based on the to-and-fro motion of piston 12, escape cock 16 ' and suction valve 18 repeated open and close.
Thereby working fluid is directed in the cylinder body 10 by fluid suction pipe 4 and the working fluid passage 12 ' that is arranged in the piston 12 successively, thereby is compressed to high pressure by piston 12 in cylinder body 10.Finally, the pressurized working fluid of compression is discharged from cylinder body 10 by exhaust unit 16, then is expelled to outside the seal container 2 by fluid discharge pipe 6.
As long as linear electric machine 20 is driven, then working fluid just repeats to be introduced into, to compress and discharge continuously successively as previously mentioned.
Yet foregoing existing Linearkompressor has a problem, and in the time of promptly around inner core 21 is press fit into cylinder body 10, cylinder body 10 may be out of shape.The wearing and tearing that this has additionally increased by 12 in cylinder body 10 and piston cause the working efficiency of compressor and durability to worsen and cause fault.
Summary of the invention
Therefore, made the present invention, an object of the present invention is to provide a kind of Linearkompressor, can prevent at the block distortion when inner core is press fit into around the cylinder body between erecting stage based on above problem.
According to a first aspect of the invention, above-mentioned and other purpose can realize that it comprises by a kind of Linearkompressor is provided: cylinder body, but be installed in wherein piston with comprising to-and-fro motion; Linear electric machine has the inner core that is engaged in around the cylinder body, and this linear electric machine is connected with piston; And be inserted in absorbing element between cylinder body and the inner core.
Preferably, the inner core internal diameter is greater than the cylinder body external diameter, but less than the cylinder body center and be installed in radial distance between the absorbing element around the cylinder body, and this radial distance is to measure before inner core is coupled to around the cylinder body.
Preferably, the absorbing element can comprise a plurality of absorbing projections of being given prominence to towards inner core by the cylinder body outer circle wall.
Preferably, a plurality of absorbing projections can be axial arranged along cylinder body.
Preferably, a plurality of absorbing projections can be along the cylinder body circumferential directions.
Preferably, absorbing projection can be annular.
Preferably, absorbing projection can be stretched out by the cylinder body outer circle wall.
Preferably, absorbing projection can be tapered towards inner core from cylinder body.
Preferably, each absorbing projection can have the end that points to inner core.
Preferably, absorbing projection can be along Boring mill on the part outer circle wall that only is arranged on cylinder body.
According to a second aspect of the invention, above-mentioned and other purpose can comprise by a kind of Linearkompressor is provided: cylinder body, but be arranged on wherein piston with comprising to-and-fro motion, and have a plurality of deformable absorbing projections that are formed on its outer circle wall; And linear electric machine, having the inner core that is assemblied in around the cylinder body, this linear electric machine links to each other with piston; Wherein the internal diameter of this inner core greater than the external diameter of cylinder body so that be press fit into around the cylinder body, but less than the radial distance between cylinder body center and the absorbing element that is installed in around the cylinder body, this radial distance is measurement before inner core is coupled to around the cylinder body.
Preferably, a plurality of absorbing projections can be axial arranged along cylinder body.
Preferably, a plurality of absorbing projections can be along the cylinder body circumferential directions.
Preferably, absorbing projection can be annular.
Preferably, absorbing projection can be stretched out by the cylinder body outer circle wall.
Preferably, absorbing projection can be tapered towards inner core from cylinder body.
Preferably, each absorbing projection can have the end that points to inner core.
According to a third aspect of the invention we, above-mentioned and other purpose can realize that it comprises by a kind of Linearkompressor is provided: cylinder body, and it is arranged in the seal container, and cylinder interior is filled with working fluid; Piston is when it during to-and-fro motion, is used for the working fluid in the compression cylinder in cylinder body; Stator has the inner core that is press fit into around the cylinder body, is positioned at the outer core around the inner core and is arranged on the coil of outer core; And mover, between inner core and outer core, and connect piston, when it interacts with stator with the piston to-and-fro motion, wherein, a plurality of absorbing projections can be outstanding to inner core from the cylinder body outer circle wall, distortion when being press fit into around the cylinder body in inner core.
Preferably, absorbing projection can be stretched out by the cylinder body outer circle wall.
Preferably, absorbing projection can be tapered towards inner core from cylinder body.
Based on the Linearkompressor of the present invention of previous constructions, the external force that is produced when inner core is press fit into around the cylinder body can effectively be absorbed by the absorbing element that is inserted between cylinder body and the inner core.
Description of drawings
From the following detailed description below in conjunction with accompanying drawing, aforementioned and other purposes of the present invention and feature will be more readily understood, wherein:
Fig. 1 is a longitdinal cross-section diagram, shows existing Linearkompressor;
Fig. 2 is an amplification sectional view, shows the cylinder body of existing Linearkompressor and the assembly structure of inner core;
Fig. 3 is a longitdinal cross-section diagram, shows according to Linearkompressor of the present invention;
Fig. 4 is an amplification sectional view, shows according to cylinder body and inner core before the Linearkompressor assembling of the present invention; With
Fig. 5 is an amplification sectional view, shows the assembly structure of Fig. 4 cylinder body and inner core.
Embodiment
Below with reference to the accompanying drawings the preferred embodiments of the present invention are described.
Only for reference, have according to a preferred embodiment of the invention a plurality ofly, hereinafter optimum embodiment will be described.The basic structure of Linearkompressor is consistent with aforementioned prior art, therefore, will ignore its detailed description.
Fig. 3 is a longitdinal cross-section diagram, shows according to Linearkompressor of the present invention.
As shown in Figure 3, Linearkompressor according to the present invention comprises: the seal container 50 that forms the compressor outward appearance; Be arranged in the cylinder seat 60 of a side in the seal container 50; Be arranged in the bonnet 62 of opposite side in the seal container 50; And be arranged on the compression unit that is applicable to compression working fluid between bonnet 62 and the cylinder seat 60.
Seal container 50 is divided into the upper cap 54 of bottom container 52 with upper opening surface and the upper surface that covers bottom container 52.
Seal container 50 is provided with: fluid pickup tube 56 is used for the operate outside fluid is imported seal container 50; With link to each other with exhaust unit 80, be used for will compression working fluid be discharged into the fluid discharge pipe 58 of seal container 50 outsides.
Bonnet 62 has the fluid suction passage 62 ' that aligns connection with fluid pickup tube 56 mutually.
Cylinder seat 60 and bonnet 62 support by the vibration damper 64 that utilizes spring.
Compression unit comprises: be installed in the cylinder body 70 in the cylinder seat 60, working fluid is inhaled into and discharges by it; Piston 72, thus working fluid in the cylinder body 70 neutral line to-and-fro motion compression cylinders 70 be installed in.
Cylinder body 70 is the cylindrical shape of elongated hollow, opposite end opening.Based on this structure, one of opening end of piston 72 logical cylinder bodies 70 for example, as shown in Figure 3 by left end, inserts in the cylinder body 70, and Ya Suo working fluid for example, as shown in Figure 3 by right-hand member, is discharged from cylinder body 70 by the other end simultaneously.
Exhaust unit 80 is arranged on the right-hand member of cylinder body 70 from cylinder body 70 working fluid that compresses is discharged into fluid discharge pipe 58.
Exhaust unit 80 comprises: discharge cover assembly 82 is provided with and is used to cover the right-hand member of cylinder body 70 and links to each other with fluid discharge pipe 58; With escape cock 84, be installed in the discharge cover assembly 82 to open and close the right-hand member of cylinder body 70.
Discharge cover assembly 82 is made up of inner discharge cover 81 and outside drain lid 83, and inner discharge cover 81 is connected with cylinder body 70, and outside drain lid 83 is positioned at around the inner discharge cover 81 and with fluid discharge pipe 58 and links to each other.
Inner discharge cover 81 is formed with fluid bore 81 ', so that the inside of the inside and outside discharge cover 83 of inner discharge cover 81 is communicated.
Escape cock 84 comprises: escape cock main body 85 is positioned at cylinder body 70 right-hand members in the mode that can move horizontally; Escape cock spring 86 is between escape cock main body 85 and inner discharge cover 81, flexibly to support escape cock main body 85.
Piston 72 inside are formed with fluid passage 72 ', and the fluid suction passage 62 ' of bonnet 62 and the inside of cylinder body 70 are connected, and pass through wherein with the guiding fluid.Suction valve 73 is installed in an end of the piston 72 that is arranged in cylinder body 70, to open and close fluid passage 72 '.
Under the fluid passage 72 ' and the differential pressure action between cylinder body 70 inside of piston 72, resiliently deformable takes place in suction valve 73, carries out the operation that opens and closes.
Simultaneously, compression unit further comprises with piston 72 and linking to each other with the linear electric machine 90 of reciprocal driven plunger 72.
Linear electric machine 90 comprises: mover, and it links to each other with piston 72; Stator, itself and the effect of mover mutual electromagnetic back and forth drive mover and piston 72 with linearity.
Mover comprises: magnet 92, and radial arrangement around cylinder body 70 is so that to-and-fro motion in stator; With magnet framework 94, it is connected with piston 72 with magnet 92.
Stator comprises: annular, outer iron core 95, radially be positioned at around the cylinder body 70, and be installed between cylinder seat 60 and the bonnet 62; Coil 96 is arranged on and is used to produce magnetic field in the outer core 95; With the inner core 98 that inwardly separates with outer core 95.
Mover is between outer core 95 and inner core 98.
Inner core 98 is an annular, is suitable for being installed in around the cylinder body 70.Thereby inner core 98 is press fit into around the cylinder body 70.
Especially, the size of inner core 98 is suitable for when absorbing element 100 inserts between inner core 98 and the cylinder body 70, and it can be force-fitted in around the cylinder body 70, and absorbing element 100 will be described hereinafter.
Preferably, inner core 98 internal diameter 98R are greater than cylinder body 70 external diameter 70R, but less than cylinder body 70 centers and be installed in radial distance 100L between the absorbing element 100 around the cylinder body 70.
Here, radial distance 100L is for being press fit into inner core 98 numerical value of measuring before around the cylinder body 70.
Absorbing element 100 is installed in around the cylinder body 70, and in the time of like this around inner core 98 is force-fitted in cylinder body 70, it is inserted between inner core 98 and the cylinder body 70.Absorbing unit 100 has deformable structure, is suitable for absorption in inner core 98 and is force-fitted in the external force that cylinder body 70 is produced on every side.
In one embodiment of the invention, absorbing element 100 can have absorbing projection 100 ', and it is radially outstanding by outer circle wall of cylinder body 70, to be force-fitted in cylinder body 70 inner peripheral wall towards inner core 98 on every side the time when inner core 98.In this case, each absorbing projection 100 ' can be annular.
Optionally, along the circumferencial direction of cylinder body 70 a plurality of absorbing projections that can distribute.
A plurality of absorbing projections 100 ' can be axial arranged along cylinder body 70.Preferably, a plurality of absorbing projections 100 ' are axially evenly arranged along cylinder body 70.
For preventing moving and separating of around inner core 98 is press fit into cylinder body 70 back inner core 98, absorbing projection 100 ' can be stretched out by the outer circle wall of cylinder body 70 accordingly.
Simultaneously, absorbing projection 100 ' is tapered towards inner unshakable in one's determination 98 from cylinder body 70.The friction that has produced between absorbing projection 100 ' and the inner core 98 when this setting that attenuates has reduced effectively around inner core 98 is press fit into cylinder body 70.
For example, each absorbing projection 100 ' can have the triangular cross section that points to inner core 98.
Foregoing absorbing element 100 can form with cylinder body 70 integral body, or can be installed on the outer circle wall of cylinder body 70 as the deformable resolution element.
As needs, absorbing element 100 can axially only be arranged on the outer circle wall of cylinder body 70 parts along cylinder body 70.
Below, will the operation and the effect according to Linearkompressor of the present invention of structure as previously mentioned be described.
After linear electric machine 90 drove, piston 72 was carried out thereby make working fluid pass through the introducing of cylinder body 70, compression and discharging operation repeatedly by means of driving force to-and-fro motion continuously in cylinder body 70 of linear electric machine 90.
In this case, owing to, reduced the risk of distortion of cylinder body 70 assemblings, piston 72 to-and-fro motion in cylinder body 70 reposefully by using absorbing element 100.
Obvious as previously mentioned, Linearkompressor according to the present invention has following effect.
At first, according to the present invention, when the absorbing element is used to absorb assembling when inner core is press-fitted in around the cylinder body external force of generation, make determined original internal diameter when cylinder body keeps its moulding.This has the effect that prevents to cause owing to block distortion poor operation efficiency, and realizes improving durability, reducing operational failure.
The second, according to the present invention, the absorbing element comprises a plurality of from the outwardly directed absorbing projection of cylinder body outer circle wall.The motion that these outwardly directed absorbing projections have effectively prevented inner core with separate, guaranteed that the driving of linear electric machine is stable.
The 3rd, each absorbing projection has the end that points to inner core.This set has reduced when inner core is press fit into around the cylinder body, the friction that inner core and absorbing interelement produce.As a result, inner core can be easier to be press fit into around the cylinder body, and not influenced by external force.
Although show the preferred embodiments of the present invention for illustrative purposes, do not breaking away from the scope and spirit that disclose as claims, those skilled in the art still may carry out multiple modification, replenish and substitute.

Claims (10)

1. Linearkompressor comprises:
But be installed in the cylinder body of piston wherein with comprising to-and-fro motion;
Linear electric machine has the inner core that is engaged in around the cylinder body, and this linear electric machine is connected with piston; With
Be inserted in the absorbing element between cylinder body and the inner core.
2. compressor according to claim 1, wherein the inner core internal diameter is greater than the cylinder body external diameter, but less than the cylinder body center and be installed in radial distance between the absorbing element around the cylinder body, and this radial distance is to measure before inner core is coupled to around the cylinder body.
3. compressor according to claim 1, wherein the absorbing element comprises a plurality of absorbing projections of being given prominence to towards inner core by the cylinder body outer circle wall.
4. compressor according to claim 3, wherein a plurality of absorbing projections are axial arranged along cylinder body.
5. compressor according to claim 3, wherein absorbing projection is stretched out by the cylinder body outer circle wall.
6. compressor according to claim 3, wherein absorbing projection is tapered to inner core from cylinder body.
7. compressor according to claim 1, wherein the absorbing element along Boring mill on the part outer circle wall that only is arranged on cylinder body.
8. Linearkompressor comprises:
Cylinder body, it is arranged in the seal container, and cylinder interior is filled with working fluid;
Piston is when it during to-and-fro motion, is used for the working fluid in the compression cylinder in cylinder body;
Stator has the inner core that is press fit into around the cylinder body, is positioned at the outer core around the inner core and is arranged on the coil of outer core; With
Mover between inner core and outer core, and connects piston, when it interacts with stator with the piston to-and-fro motion,
Wherein, a plurality of absorbing projections are outstanding to inner core from the cylinder body outer circle wall, distortion when being press fit into around the cylinder body in inner core.
9. compressor according to claim 8, wherein absorbing projection is stretched out by the cylinder body outer circle wall.
10. compressor according to claim 8, wherein absorbing projection is tapered to inner core from cylinder body.
CNB2005101369565A 2005-05-11 2005-12-16 Linear compressor Expired - Fee Related CN100420851C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020050039349A KR100673460B1 (en) 2005-05-11 2005-05-11 Linear Compressor
KR10-2005-0039349 2005-05-11
KR1020050039349 2005-05-11

Publications (2)

Publication Number Publication Date
CN1862016A true CN1862016A (en) 2006-11-15
CN100420851C CN100420851C (en) 2008-09-24

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Country Status (6)

Country Link
US (1) US20070009370A1 (en)
JP (1) JP4870421B2 (en)
KR (1) KR100673460B1 (en)
CN (1) CN100420851C (en)
BR (1) BRPI0505345A (en)
DE (1) DE102005055628A1 (en)

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US9695810B2 (en) 2013-06-28 2017-07-04 Lg Electronics Inc. Linear compressor
US9714648B2 (en) 2013-06-28 2017-07-25 Lg Electronics Inc. Linear compressor
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US9841012B2 (en) * 2014-02-10 2017-12-12 Haier Us Appliance Solutions, Inc. Linear compressor
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JP4870421B2 (en) 2012-02-08
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KR20060117521A (en) 2006-11-17
DE102005055628A1 (en) 2007-03-01
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BRPI0505345A (en) 2007-01-09
US20070009370A1 (en) 2007-01-11

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