CN101663484A - Linear compressor and the method for manufacturing the same - Google Patents
Linear compressor and the method for manufacturing the same Download PDFInfo
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- CN101663484A CN101663484A CN200880001551A CN200880001551A CN101663484A CN 101663484 A CN101663484 A CN 101663484A CN 200880001551 A CN200880001551 A CN 200880001551A CN 200880001551 A CN200880001551 A CN 200880001551A CN 101663484 A CN101663484 A CN 101663484A
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- Prior art keywords
- cylinder
- spacer member
- linearkompressor
- nonmagnetic metal
- framework
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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
- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1671—Making multilayered or multicoloured articles with an insert
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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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
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- 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
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- 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)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
- Linear Motors (AREA)
Abstract
The present inveniton provides a linear compressor comprising a cylinder(20), a piston, a linear motor disposed along an outer circumference of the cylinder, and a non-magnetic substance such as an inner ring(122). The piston compresses refrigerant while reciprocating in the cylinder. The linear motor is provided with an inner stator(120) partially made of magnetic material to drive the piston. The non-magnetic substance is disposed on the inner stator to prevent magnetic flux from being transferred from the inner stator to the cylinder.
Description
Technical field
The present invention relates to a kind of Linearkompressor, and more specifically, relate to by preventing that magnetic flux is transferred to the Linearkompressor that cylinder reduces the linear electric machine of foucault current loss and uses this linear electric machine from inner stator.
Background technique
Fig. 1 is the view that the part of conventional linear compressor is shown.
The conventional linear compressor comprises cylinder 2, framework 3, piston 4, linear electric machine 10 and motor cover 18.Linear electric machine 10 comprises inner stator 12, external stator 14 and permanent magnet 16.Linear electric machine 10 mutual electromagnetic forces make piston 4 to-and-fro motion.Piston 4 in cylinder 2 to-and-fro motion with compressed fluid.
One end of cylinder 2 is installed on the framework 3.Inner stator 12 is placed on the periphery of cylinder 2.External stator 14 is placed between framework 3 and the motor cover 18, and radially has predetermined interval from the periphery of inner stator 12.Framework 3 is fixed to one another by bolt with motor cover 18.
Here, by with a plurality of inner cores along the stacked inner stator 12 that forms of circumferential direction.In addition, permanent magnet 16 radially is installed between inner stator 12 and the external stator 14 with predetermined interval.One end of permanent magnet 16 be connected in piston 4 an end so that piston move.
Fig. 2 is the schematic representation that is illustrated in the path of magnetic flux in the conventional linear compressor.In the conventional linear compressor, because inner stator 12, external stator 14, cylinder 2, framework 3 and piston 4 are made by magnetic material, therefore the magnetic flux that flows in inner stator 12 is diffused into cylinder 2, framework 3 and piston 4.Here, in linear electric machine 10, produce the foucault current loss.
For example, when magnetic field is applied to conductor plate with the right angle and increases, will produce foucault current on conductor plate.When magnetic field increases, on conductor plate, produce the foucault current of turning left, to hinder the increase in magnetic field from magnetic direction.Again such as, when magnet is mobile on conductor plate, also produce foucault current.The magnetic field of foucault current can stop moving of magnet.The foucault current loss meaning is the energy loss that takes place when foucault current produces Joule heat because of the resistance of conductor.
With reference to Fig. 2, in the conventional linear compressor, because cylinder 2, framework 3 and piston 4 are all made by magnetic material, therefore magnetic flux not only flows along path A (promptly in inner stator 12, permanent magnet 16 and external stator 14) in linear electric machine, but also flows in cylinder 2 and the piston 4 along path B.Therefore, produce the foucault current loss.
In order to prevent the foucault current loss, Korea S discloses communique 2004-0110057 in early days and has proposed a kind of structure, wherein be formed with the fixed component of being made by resin material in inner stator, but it has different resonator systems.With reference to Fig. 3, in inner stator 23, be formed with and be used for the fixed component 233 that steel plate 231 is fixed to one another, make the steel disc 231 that is unified into drum by embossing 232 interim couplings can keep drum.Fixed component 233 centers on and fixing inboard and top and bottom along the stacked a plurality of steel plates 231 of circumferential direction.Be carried out mold insert moulding (insert-molded) to keep cylindrical arrangements along the stacked a plurality of steel plates 231 of circumferential direction.Fixed component 233 is by making for nonconductor and the resin (as plastics) that is easy to fusion.Therefore, steel plate 231 can completely cut off each other continuously by fixed component 233 and be stacked along circumferential direction.Thereby can prevent the foucault current loss that the foucault current in the inner stator 23 reaches thereby causes.
In this structure,, therefore can suppress the foucault current loss because resin material has prevented that magnetic flux is transferred to cylinder 2 and piston 4.Yet, because inner stator 12 is under about 100 ℃ to 150 ℃ relative higher temperature environment with cylinder 2, so the fixed component of being made by resin material may be out of shape.This distortion of fixed component causes the internal diameter of inner stator 12 and external diameter to change.Therefore, the interval between inner stator 12 and the external stator 14 changes, and makes to produce noise and vibration.In addition, the variation at the interval between inner stator 12 and the external stator 14 also causes the change of electromagnetic force that is applied to permanent magnet 16.The result is that the operational reliability of Linearkompressor reduces.
Summary of the invention
Technical problem
The purpose of this invention is to provide a kind of Linearkompressor.
Another object of the present invention provides a kind of Linearkompressor that reduces the foucault current loss.
Another purpose of the present invention provides a kind of by prevent that the flux flow that flows from reducing the Linearkompressor of foucault current loss to cylinder in inner stator.
Another purpose of the present invention provides Linearkompressor and the linear electric machine that reduces the foucault current loss by the volume that reduces inner stator.
Another purpose of the present invention provides a kind of by forming the Linearkompressor that cylinder reduces the foucault current loss with nonmagnetic substance.
Another purpose of the present invention provides a kind of Linearkompressor, and this Linearkompressor reduces the foucault current loss by inner stator, framework and cylinder being made monomer and limited non-magnetic region between inner stator and cylinder.
Another purpose of the present invention provides and a kind ofly prevents that by the spacer member of being made by the nonmagnetic metal in the metallic material magnetic flux from flowing to the Linearkompressor of cylinder from inner stator, the operational reliability that makes it possible to keep the interval between inner stator and the external stator and can improve Linearkompressor.
Technological scheme
According to an aspect of the present invention, provide a kind of Linearkompressor, described Linearkompressor comprises: cylinder; Piston, described piston in described cylinder to-and-fro motion with compressed refrigerant; Linear electric machine, described linear electric machine is settled along the outer surface of described cylinder, and described linear electric machine is provided with the inner stator made by magnetic material to small part to drive described piston; And spacer member, described spacer member is made and is placed in described inner stator inboard and is transferred to described cylinder to prevent magnetic flux from described inner stator by nonmagnetic metal.。In this structure, because preventing magnetic flux, the spacer member of being made by the nonmagnetic metal of metal material transfers to cylinder, so the interval between inner stator and the external stator can not change because of the distortion of spacer member from inner stator.
According to another aspect of the present invention, described spacer member and the described inner stator of being made by nonmagnetic metal forms.
According to a further aspect of the invention, the described spacer member of being made by nonmagnetic metal forms by using aluminium material to carry out the mold insert moulding, and forms with described inner stator.
According to another aspect of the present invention, the described spacer member of being made by nonmagnetic metal is by using in austenitic stainless steel and the nonmagnetic cast iron any one and carry out the powder casting and sintering forming.
According to another aspect of the present invention, described Linearkompressor also comprises the fixed component that is used for the described spacer member of being made by nonmagnetic metal is fixed to described cylinder.
According to another aspect of the present invention, the end that described fixed component pushes described spacer member to be supporting described spacer member, and described cylinder has groove, makes described fixed component can insert in the described groove.
According to another aspect of the present invention, described Linearkompressor also comprises framework, and described framework is placed in a side of described cylinder with fixing described linear electric machine, and wherein, at least one in described cylinder and the described framework made by nonmagnetic material.
According to another aspect of the present invention, at least one that made by nonmagnetic material in the described spacer member of being made by nonmagnetic metal and described cylinder and the described framework forms.
According to another aspect of the present invention, described Linearkompressor also comprises framework, described framework is placed in a side of described cylinder with fixing described linear electric machine, wherein, described spacer member of being made by nonmagnetic metal and any one in described cylinder, described inner stator and the described framework form.
According to another aspect of the present invention, two or more in described cylinder, described inner stator, described framework and the described spacer member of being made by nonmagnetic metal form.
In addition, according to an aspect of the present invention, provide a kind of Linearkompressor, described Linearkompressor comprises: cylinder; Piston, described piston in described cylinder to-and-fro motion with compressed refrigerant; And linear electric machine, the inner stator made by magnetic material to small part is settled and be provided with to described linear electric machine with driven plunger along the outer surface of described cylinder, wherein, described inner stator comprises inner core and cylindric inner ring, described inner ring is made by nonmagnetic material, and described inner core is made and is stacked in along circumferential direction on the outer surface of described inner ring by the magnetic metal material.
According to another aspect of the present invention, described Linearkompressor also comprises restricting means, and described restricting means is placed between described inner ring and the described inner core to limit relatively moving of described inner ring and described inner core.
According to a further aspect of the invention, described inner ring and described cylinder form.
According to another aspect of the present invention, described Linearkompressor also comprises framework, and described framework is placed in a side of described cylinder with fixing described linear electric machine, and wherein, described inner ring and described framework form.
According to another aspect of the present invention, described cylinder and described inner ring and described framework form.
In addition, according to an aspect of the present invention, provide a kind of method that is used to make Linearkompressor, said method comprising the steps of: inner core is placed in the inner stator mould; The metal that will have than the low-melting fusing point of described inner core injects described inner stator mould; And inner stator is coupled to cylinder.
Further, according to an aspect of the present invention, provide a kind of method that is used to make Linearkompressor, described method comprises: the first step: come the molded spacer member of being made by nonmagnetic metal by compacting nonmagnetic metal powder in mould; Second step: the described spacer member of being made by nonmagnetic metal molded and shaped in the first step is heated; And the 3rd the step: the described spacer member of being made by nonmagnetic metal is coupled to inner stator, cylinder and framework.
Further, according to an aspect of the present invention, a kind of method that is used to make Linearkompressor is provided, and described method comprises: the first step: by suppress the spacer member that the nonmagnetic metal powder comes molded integratedly cylinder and made by nonmagnetic metal in mould; Second step: described cylinder molded and shaped in the first step and the described spacer member of being made by nonmagnetic metal are heated; And the 3rd the step: the described spacer member of being made by nonmagnetic metal is coupled to inner stator and framework.
Further, according to an aspect of the present invention, a kind of method that is used to make Linearkompressor is provided, and described method comprises: the first step: by suppress the spacer member that the nonmagnetic metal powder comes molded integratedly cylinder, framework and made by nonmagnetic metal in mould; Second step: described cylinder molded and shaped in the first step, described framework and the described spacer member of being made by nonmagnetic metal are heated; And the 3rd the step: the described spacer member of being made by nonmagnetic metal is coupled to inner stator.
Beneficial effect
In Linearkompressor according to the present invention, can improve efficiency by reducing the foucault current loss.
In addition, in Linearkompressor according to the present invention, can quote injection molding to prevent magnetic flux and between cylinder and inner stator, flow and to form cylinder, inner stator and framework.
In addition, in Linearkompressor according to the present invention,, therefore can reduce foucault current because framework and cylinder made by nonmagnetic substance, thereby can prevent that magnetic flux from flowing to cylinder from inner stator.
Further, in Linearkompressor according to the present invention, by preventing that magnetic flux from flowing to the spacer member that cylinder reduces the foucault current loss from inner stator and being made by the nonmagnetic metal the metallic material.Therefore, when being exposed to higher relatively temperature environment, less be out of shape by the spacer member that nonmagnetic substance is made.
Further, in Linearkompressor according to the present invention, less be out of shape owing to be positioned at the spacer member of making by nonmagnetic metal of inner stator, so the interval between inner stator and the external stator can be kept.Therefore, the noise and the vibration of compressor can be suppressed, and the operational reliability of compressor can be improved.
Description of drawings
Fig. 1 is the view that the part of conventional linear compressor is shown;
Fig. 2 is the schematic representation that the path of the magnetic flux in the conventional linear compressor is shown;
Fig. 3 is the view that an example of the conventional linear compressor that comprises the fixed component of being made by the non-magnetic resin material is shown;
Fig. 4 and Fig. 5 are the views that illustrates according to the part of the Linearkompressor that comprises the spacer member of being made by nonmagnetic metal of first embodiment of the invention;
Fig. 6 is the view that illustrates according to the part of the Linearkompressor that comprises the spacer member of being made by nonmagnetic metal of second embodiment of the invention;
Fig. 7 is the view that the part of the Linearkompressor of another mode of execution according to the present invention is shown, its middle frame and formed by the spacer member that nonmagnetic metal is made; And
Fig. 8 is the view that the part of the Linearkompressor of another mode of execution according to the present invention is shown, its middle frame, cylinder and formed by the spacer member that nonmagnetic metal is made.
Embodiment
Foucault current loss in the inner stator of linear electric machine is expressed by following relation:
Wherein, V
CoreRepresent the volume of the core of magnetic material, H represents magnetic intensity [amperes per meter], and B represents Magnetic flux density [weber].Therefore, must reduce the volume of core of magnetic material to prevent the foucault current loss.For example, the method for volume that reduces the core of magnetic material comprises the method for the size that reduces core and forms the method for core with nonmagnetic substance.
Below, describe preferred implementation of the present invention with reference to the accompanying drawings in detail.
Fig. 4 and Fig. 5 are the views that illustrates according to the some parts of the Linearkompressor that comprises the spacer member of being made by nonmagnetic metal of first embodiment of the invention.Linearkompressor according to first embodiment of the invention comprises that the inner ring of being made by nonmagnetic metal 122 is as spacer member.Inner stator 120 comprises the inner core 121 of magnetic material and as the inner ring 122 of an example of the spacer member of being made by nonmagnetic metal.Because inner stator 120 comprises inner ring 122, so the volume of the inner core 121 of magnetic material can reduce in the inner stator 120.Inner ring 122 is installed on the periphery of cylinder 20 and makes cylindric.Inner core 121 along circumferential direction with on a plurality of peripheries that are stacked in inner ring 122.Because the inner ring of being made by nonmagnetic metal 122 is installed on the periphery of cylinder 20, has therefore prevented that magnetic flux from flowing to cylinder 20 from inner core 121, thereby reduced the foucault current loss.Here, if framework 30 is made by nonmagnetic substance, can prevent that so magnetic flux from flowing in the cylinders 20 through an end and the framework 30 of cylinder 20.In addition, because inner ring 122 is made of metal, so in 100 ℃ to 150 ℃ following inner ring 122 less deformed of operating environment of Linearkompressor.Therefore, the interval between inner stator 120 and the external stator (not shown) can keep constant, and can prevent that the level of the electromagnetic force that works between inner stator 120 and external stator (not shown) from unpredictably changing.In addition, inner core 121 and inner ring 122 for example comprise that the groove 121a of locking and protruding 122a are to prevent relatively moving between inner core and the inner ring each other.
Fig. 5 shows cylinder 20, inner core 121 and the inner ring 122 according to first embodiment of the invention.Cylinder 20 comprises that groove 20h makes inner ring 122 can be fixed in cylinder 20.Retaining ring 25 inserts among the groove 20h.One end of retaining ring 125 pushing inner rings 122 is with fixing inner ring 122.The other end of inner ring 122 is fixing by framework 30.According to the assembling method of Linearkompressor, cylinder 20 is inserted in the framework 30, the inner core of coupling connection and inner ring 122 assemble around the cylinder 20 that is inserted in the framework 30 each other then.Afterwards, retaining ring 25 is assembled among the groove 20h of cylinder 20, makes that cylinder 20, framework 30 and inner stator 120 are fixed to one another.
Fig. 6 is the view that illustrates according to the part of the Linearkompressor that comprises the spacer member of being made by nonmagnetic metal of second embodiment of the invention.According to second embodiment of the invention, inner core 121 can comprise protruding 121b, and inner ring 122 can comprise the groove 122b that locks mutually with protruding 121b, to prevent relatively moving between inner core and the inner ring.
Fig. 7 is the view that the part of the Linearkompressor of another mode of execution according to the present invention is shown, its middle frame and formed by the spacer member that nonmagnetic metal is made.According to this mode of execution, Linearkompressor comprises the spacer member of being made by nonmagnetic metal 130 between inner stator 120 and cylinder 20.Here, inner stator 120 is made by magnetic material, and framework 30 is made by nonmagnetic substance.Therefore, can prevent that in the inner stator of making by magnetic material 120 magnetic flux that flows passes the periphery of cylinder 20 and flows in the cylinder 20.In addition, can prevent that magnetic flux from passing in the end and framework 30 inflow cylinders 20 of cylinder 20.
The another mode of execution according to the present invention, the spacer member of being made by nonmagnetic metal 130 can form with the framework of being made by nonmagnetic substance 30.And according to another embodiment of the invention, the spacer member of being made by nonmagnetic metal 130 can form with inner stator 120 and framework 30.For this reason, the inner stator made from magnetic material in advance 120 is placed in the mould of the spacer member 130 that is used for Mold frame 30 and is made by nonmagnetic metal, and is filled in mould and in mould casting such as the more low-melting nonmagnetic substance of having of aluminium fusion.
In addition, can form with framework 30 with by the spacer member 130 that nonmagnetic metal is made by sintering process.The material that has a higher melt between austenitic stainless steel and nonmagnetic cast iron when utilization forms framework 30 and during the spacer member 130 made by nonmagnetic metal, can quote this method.Because the fusing point of austenitic stainless steel and nonmagnetic cast iron is higher than the material of inner stator 120, so can not form spacer member 130 and framework 30 by injection molding.Therefore, at the mould of the spacer member 130 that is used for Mold frame 30 and makes by nonmagnetic metal with metallic dust and mixed with resin, compacting and heating.When being integrally formed and being heated when framework 30 with by the spacer member 130 that nonmagnetic metal is made, inner stator 120 may loss of excitation.Therefore, preferably,, be coupled to inner stator 120 then with framework 30 with by spacer member 130 sintering that nonmagnetic metal is made.By sintering process, the spacer member 130 that can accurately form framework 30 and make by nonmagnetic metal, and can simplify last handling process.As a result, can simplify and shorten whole manufacturing process.
According to another embodiment of the present invention, can be by making cylinder 20 and framework 30 such as the nonmagnetic substance of aluminium, austenitic stainless steel, nonmagnetic cast iron etc.In this case, be not directly installed on the cylinder 20, can prevent that still magnetic flux from flowing in the cylinder 20 although spacer member 130 and the inner stator 120 made by nonmagnetic metal are set in Linearkompressor.Under situation with low-melting metal such as aluminium, the inner stator made from magnetic material in advance 120 is placed in the mould, and be filled into the nonmagnetic substance of fusion in the mould and in mould casting, make inner stator 120 and cylinder 20 to form.Simultaneously, having under the situation such as the metal of austenitic stainless steel and nonmagnetic cast iron of higher melt, cylinder 20 and framework 30 sintering are coupled to inner stator 120 then.
Fig. 8 shows the view of the part of the Linearkompressor of another mode of execution according to the present invention, its middle frame, cylinder and formed by the spacer member that nonmagnetic metal is made.According to this mode of execution, cylinder 20, framework 30 and can form by injection molding by the spacer member 130 that nonmagnetic metal is made.Framework 30 is made by nonmagnetic substance.Here, the spacer member of being made by nonmagnetic metal 130 is formed between inner stator 120 and the cylinder 20, flows to cylinder 20 so that prevent magnetic flux from inner stator 120.The spacer member of being made by nonmagnetic metal 130 can be formed by aluminium, austenitic stainless steel and nonmagnetic cast iron etc.Under situation with low-melting metal such as aluminium, the inner stator made from magnetic material in advance 120 is placed in the mould of the spacer member 130 that is used for molded integratedly cylinder 20, framework 30 and is made by nonmagnetic metal, and the nonmagnetic substance with fusion is filled in the mould and casting in mould then.Simultaneously, have under the situation such as the metal of austenitic stainless steel and nonmagnetic cast iron of higher melt, be coupled to inner stator 120 then with cylinder 20, framework 30 and by spacer member 130 sintering that nonmagnetic metal is made.
As mentioned above, when being formed with the spacer member of being made by nonmagnetic metal 130 between inner stator 120 and cylinder 20, magnetic flux does not flow to cylinder 20 from inner stator 120, makes not produce foucault current in the driving process of Linearkompressor.In addition, the spacer member of being made by nonmagnetic metal 130 is by forming than the nonmagnetic substance such as the more heat-resisting metal material of the nonmetallic material of resin.When comparing with the spacer member of being made by the nonmagnetic substance of resin material, this spacer member 130 guarantees that the Linearkompressor of operating has good reliability under higher relatively temperature.On the other hand, when resin material during, depend on and create conditions that resin material seriously disperses by the mold insert moulding.This branch breaking up has influence on the internal diameter and the external diameter of inner stator 120.On the contrary, according to the present invention, because the spacer member made by nonmagnetic metal 130 made by metallic material, so seldom disperse.Therefore, it is constant that the internal diameter of inner stator 120 and external diameter can keep, and the interval between inner stator 120 and the external stator (not shown) can keep constant.Because it is constant that the interval between inner stator 120 and the external stator (not shown) keeps, so can guarantee the performance of Linearkompressor and can suppress noise and vibration.
Illustrate and described the present invention although reached preferred implementation in conjunction with the accompanying drawings, the present invention is not limited thereto, but is limited by claims.Therefore, it should be understood by one skilled in the art that and under the situation that does not deviate from the spirit and scope of the present invention that are defined by the following claims, to make various variants and modifications the present invention.
Claims (19)
1. Linearkompressor comprises:
Cylinder;
Piston, described piston in described cylinder to-and-fro motion with compressed refrigerant;
Linear electric machine, described linear electric machine is settled driving described piston along the outer surface of described cylinder, and described linear electric machine comprises the inner stator of being made by magnetic material to small part; And
Spacer member, described spacer member are made and are placed in described inner stator inboard and be transferred to described cylinder to prevent magnetic flux from described inner stator by nonmagnetic metal.
2. Linearkompressor as claimed in claim 1, wherein,
Described spacer member and the described inner stator of being made by nonmagnetic metal forms.
3. Linearkompressor as claimed in claim 2, wherein,
The described spacer member of being made by nonmagnetic metal forms by using aluminium material to carry out the mold insert moulding, and forms with described inner stator.
4. Linearkompressor as claimed in claim 1, wherein,
The described spacer member of being made by nonmagnetic metal is by using in austenitic stainless steel and the nonmagnetic cast iron any one and carry out the powder casting and sintering forming.
5. Linearkompressor as claimed in claim 1 also comprises:
Framework, described framework are placed in a side of described cylinder with fixing described linear electric machine,
Wherein, at least one in described cylinder and the described framework made by nonmagnetic material.
6. Linearkompressor as claimed in claim 5, wherein,
At least one that made by nonmagnetic material in the described spacer member of being made by nonmagnetic metal and described cylinder and the described framework forms.
7. as each described Linearkompressor in the claim 1 to 6, also comprise:
Be used for the described spacer member of being made by nonmagnetic metal is fixed to the fixed component of described cylinder.
8. Linearkompressor as claimed in claim 7, wherein,
The end that described fixed component pushes described spacer member to be supporting described spacer member, and described cylinder has groove, makes described fixed component can insert in the described groove.
9. Linearkompressor as claimed in claim 1 also comprises:
Framework, described framework are placed in a side of described cylinder with fixing described linear electric machine,
Wherein, described spacer member of being made by nonmagnetic metal and any one in described cylinder, described inner stator and the described framework form.
10. Linearkompressor as claimed in claim 1, wherein,
In described cylinder, described inner stator, described framework and the described spacer member of being made by nonmagnetic metal two or more form.
11. a Linearkompressor comprises:
Cylinder;
Piston, described piston in described cylinder to-and-fro motion with compressed refrigerant; And
Linear electric machine, the inner stator made by magnetic material to small part is settled and be provided with to described linear electric machine with driven plunger along the outer surface of described cylinder,
Wherein,
Described inner stator comprises inner core and cylindric inner ring, and described inner ring is made by nonmagnetic material, and described inner core is made and is stacked in along circumferential direction on the outer surface of described inner ring by the magnetic metal material.
12. Linearkompressor as claimed in claim 11 also comprises:
Restricting means, described restricting means are placed between described inner ring and the described inner core to limit relatively moving of described inner ring and described inner core.
13. Linearkompressor as claimed in claim 11, wherein,
Described inner ring and described cylinder form.
14. Linearkompressor as claimed in claim 11 also comprises:
Framework, described framework are placed in a side of described cylinder with fixing described linear electric machine,
Wherein, described inner ring and described framework form.
15. Linearkompressor as claimed in claim 14, wherein,
Described cylinder and described inner ring and described framework form.
16. a method that is used to make Linearkompressor may further comprise the steps:
Inner core is placed in the inner stator mould;
The metal that will have than the low-melting fusing point of described inner core injects described inner stator mould; And
Inner stator is coupled to cylinder.
17. a method that is used to make Linearkompressor comprises:
The first step: come the molded spacer member of making by nonmagnetic metal by compacting nonmagnetic metal powder in mould;
Second step: the described spacer member of being made by nonmagnetic metal molded and shaped in the first step is heated; And
The 3rd step: the described spacer member of being made by nonmagnetic metal is coupled to inner stator, cylinder and framework.
18. a method that is used to make Linearkompressor, described method comprises:
The first step: by in mould, suppressing the spacer member that the nonmagnetic metal powder comes molded integratedly cylinder and made by nonmagnetic metal;
Second step: described cylinder molded and shaped in the first step and the described spacer member of being made by nonmagnetic metal are heated; And
The 3rd step: the described spacer member of being made by nonmagnetic metal is coupled to inner stator and framework.
19. a method that is used to make Linearkompressor comprises:
The first step: by in mould, suppressing the spacer member that the nonmagnetic metal powder comes molded integratedly cylinder, framework and made by nonmagnetic metal;
Second step: described cylinder molded and shaped in the first step, described framework and the described spacer member of being made by nonmagnetic metal are heated; And
The 3rd step: the described spacer member of being made by nonmagnetic metal is coupled to inner stator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070000326 | 2007-01-02 | ||
| KR1020070000326A KR20080063662A (en) | 2007-01-02 | 2007-01-02 | Linear compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101663484A true CN101663484A (en) | 2010-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880001551A Pending CN101663484A (en) | 2007-01-02 | 2008-01-02 | Linear compressor and the method for manufacturing the same |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20080063662A (en) |
| CN (1) | CN101663484A (en) |
| WO (1) | WO2008082251A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101480465B1 (en) * | 2008-10-27 | 2015-01-09 | 엘지전자 주식회사 | Reciprocating compressor and refrigerator having the same |
| KR101484325B1 (en) * | 2009-04-09 | 2015-01-20 | 엘지전자 주식회사 | Linear compressor |
| KR101720536B1 (en) * | 2010-01-08 | 2017-03-28 | 삼성전자주식회사 | A hermetic type compressor |
| ES2576750T3 (en) | 2010-08-05 | 2016-07-11 | Lg Electronics Inc. | Linear compressor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100414081B1 (en) * | 1997-12-10 | 2004-03-30 | 엘지전자 주식회사 | Method for manufacturing stator of motor in linear compressor |
| KR100355671B1 (en) * | 1998-07-03 | 2002-10-09 | 삼성전자 주식회사 | Inner core/cylinder block assembly for linear compressor and method for assembling the same |
| KR20030004621A (en) * | 2001-07-05 | 2003-01-15 | 이영희 | electronic commerce of farm products |
| KR100459455B1 (en) * | 2002-05-20 | 2004-12-03 | 엘지전자 주식회사 | Methode for producing compressing part in reciprocating compressor |
| KR100511332B1 (en) * | 2003-09-22 | 2005-08-31 | 엘지전자 주식회사 | Apparatus for fixing stator of reciprocating compressor and method thereof |
| KR20050101484A (en) * | 2004-04-19 | 2005-10-24 | 삼성광주전자 주식회사 | Linear compressor |
-
2007
- 2007-01-02 KR KR1020070000326A patent/KR20080063662A/en active Search and Examination
-
2008
- 2008-01-02 WO PCT/KR2008/000011 patent/WO2008082251A2/en active Application Filing
- 2008-01-02 CN CN200880001551A patent/CN101663484A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008082251A3 (en) | 2009-08-06 |
| KR20080063662A (en) | 2008-07-07 |
| WO2008082251A2 (en) | 2008-07-10 |
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Application publication date: 20100303 |