CN1619145A - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
CN1619145A
CN1619145A CNA2004100343879A CN200410034387A CN1619145A CN 1619145 A CN1619145 A CN 1619145A CN A2004100343879 A CNA2004100343879 A CN A2004100343879A CN 200410034387 A CN200410034387 A CN 200410034387A CN 1619145 A CN1619145 A CN 1619145A
Authority
CN
China
Prior art keywords
cylinder
linear compressor
iron core
stator
support unit
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.)
Pending
Application number
CNA2004100343879A
Other languages
Chinese (zh)
Inventor
李泰炅
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 CN1619145A publication Critical patent/CN1619145A/en
Pending legal-status Critical Current

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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
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

The present invention relates to a linear compressor. In the linear compressor, a holder 31 b is combined with a cylinder 22 in an interlocking fashion by forming a first threaded part 31 c on an inner surface of the holder 31 b, the outer side of which on an inner core 31 a is mounted, and a second threaded part 22 b on an outer surface of the cylinder 22 to correspond to the first threaded part 31 c. That is, screws are not required when the cylinder 22 and the holder 31 b are combined with each other, thus preventing the cylinder 22 from being deformed by a fastening torque of the screws.

Description

Linear compressor
The application requires the preference of korean patent application NO.2003-83189, and this korean patent application is committed to Korea S Department of Intellectual Property on November 21st, 2003, and its disclosed content is hereby incorporated by reference.
Technical field
The present invention relates to a kind of linear compressor, in particular, the present invention relates to a kind of linear compressor with the inner iron core that links together with the cylinder outside.
Background technique
Usually, linear compressor be used for to refrigeration plant for example the refrigeration agent of refrigerator and air-conditioning compress, it is meant and adopts linear electric motor of straight reciprocating motion to come the reciprocating compressor of driven plunger as drive unit.
Existing linear compressor is included in compression set that in the enclosing housing refrigeration agent is compressed and the drive unit that power is provided to compression set.
Compression set comprises cylinder body and piston, and cylinder and supporting portion constitute cylinder body together, and cylinder forms a compression chamber, and supporting portion is protruding from the following peripheral of cylinder, but piston is arranged in the compression chamber and to-and-fro motion.Below cylinder, be provided with cylinder cap, in cylinder cap, be formed with suction chamber and discharge side.
Drive unit comprises inner iron core, outer iron core and moving element, the outside of inner iron core and cylinder links together, outer unshakable in one's determination and inner iron core space setting, and be wound with coil in the iron core outside, moving element and cylindrical shape magnet link into an integrated entity, and be arranged between inner iron core and the outer iron core, thereby the magnetic line of force that can and pass interval between inner iron core and the outer iron core interacts.In the case, moving element and piston link together.When moving element moved, piston is to-and-fro motion in compression chamber, simultaneously compressed refrigerant.
Simultaneously, support unit is arranged between inner iron core and the cylinder, and inner iron core is fixed on the supporting portion of cylinder body.
Support unit is a drum.Inner iron core is installed to the outside of support unit, is provided with a plurality of tapped holes in the lower end of support unit.Supporting portion and the corresponding position of those tapped holes at cylinder body are provided with a plurality of fixed holes.Therefore, just the supporting portion of support unit and cylinder body can be linked together by fastening screw trip bolt being fastened in tapped hole and the fixed hole.
But, existing linear compressor need optional feature for example screw support unit and cylinder body are linked together, therefore increased manufacture cost and increased manufacturing step, thereby reduced the manufacturing efficient of linear compressor.
In addition, the Tightening moment of screw makes cylinder produce distortion, thereby has reduced the reliability of linear compressor.
Summary of the invention
Therefore, one aspect of the present invention provides a kind of linear compressor, and its composite structure to support unit and cylinder body is improved, and wherein, inner iron core is fixed on the support unit, and this linear compressor can be avoided cylinder to deform and reduce manufacturing step.
Above-mentioned and/or the others of the present invention realize that by a kind of linear compressor is provided this linear compressor comprises: the external stator and the inner stator that can produce magnetic field; To-and-fro motion is with the moving element of mobile piston between described external stator and described inner stator; By moving the cylinder that described piston is compressed refrigeration agent therein; Be formed at first helical thread portion on the internal surface of described inner stator; And be formed on the outer surface of described cylinder so that second helical thread portion that is meshed with described first helical thread portion.
Described inner stator can comprise; Produce the inner iron core and the support unit that is used for fixing inner iron core of the magnetic line of force, described first helical thread portion can be formed on the internal surface of described support unit.
Description of drawings
These and other characteristics and advantage of the present invention can be by clear in the description of the preferred embodiment of the present invention being carried out below in conjunction with accompanying drawing and draw easily, wherein:
Fig. 1 is the overall structure sectional drawing of linear compressor of the present invention;
Fig. 2 is the broken section perspective view of the assembly parts of inner stator in the linear compressor shown in Figure 1 and cylinder.
Embodiment
To be described in detail the preferred embodiment of the present invention shown in the drawings below, wherein, identical label is represented identical parts.
Fig. 1 is the overall structure sectional drawing of linear compressor of the present invention.
As shown in Figure 1, linear compressor of the present invention comprises housing 10, compression set 20 and the drive unit 30 of sealing, housing 10 is formed the structure of a sealing by 12 combinations of upper shell 11 and lower shell body, compression set 20 is arranged in the enclosing housing 10 refrigeration agent is compressed, and drive unit 30 can provide power to compression set 20.
Compression set 20 comprises cylinder body 21 and piston 24, and cylinder 22 and supporting portion 23 constitute cylinder body 21 together, and cylinder 22 forms a compression chamber 22a, and supporting portion 23 is protruding from the following peripheral of cylinder 22, but piston 24 is arranged on to-and-fro motion among the compression chamber 22a.Cylinder cap 25 is arranged on the below of cylinder 22, is used for suction and discharging refrigerant.
Suction chamber 25a and discharge side 25b are formed in the cylinder cap 25, and when piston 25 to-and-fro motion, suction chamber and discharge side are just worked with suction and discharging refrigerant with compression chamber 22a.In addition, be provided with valve plate 26 between cylinder cap 25 and cylinder 22, suction valve 26a and expulsion valve 26b are installed on the valve plate 26, are respectively applied for opening and closing suction chamber 25a and discharge side 25b selectively.
Drive unit 30 comprises linear electric motor, these linear electric motor comprise inner stator 31, external stator 32 and moving element 33, inner stator 31 is arranged on the outside of cylinder 22, the distance that external stator 32 is predetermined at interval with inner stator 31, moving element 33 is arranged between inner stator 31 and the external stator 32, and magnetic field that can and pass the space between inner stator 31 and the external stator 32 interacts.
Moving element 33 comprises magnet 33a and is used for fixing the fixed component 33b of supporting magnet 33a that magnet 33a makes cylindrical shape and is fixed to around the outside of cylinder 22.The fixed component 33b of moving element 33 and the coupling shaft 24a that is arranged on piston 24 upper ends link together coaxially, so that the fixed component 33b of moving element 33 can be with piston 24 to-and-fro motion.
External stator 32 is configured to make coil 32b to be wound into the magnetic line of force that makes generation and passes outer 32a unshakable in one's determination, thereby forms a magnetic line of force path.In addition, the lower end of external stator 32 is supported by the supporting portion 23 of cylinder body 21, and the upper end of external stator 32 is by fixed support 40 supportings.
Inner stator 31 comprises inner iron core 31a, and similar with outer 32a unshakable in one's determination, it can play the effect of magnetic line of force path.The magnetic line of force that external stator 32 is produced flows to the inner iron core 31a of inner stator 31 through the magnet 33a of moving element 33.
Be described below in conjunction with the assembly parts that constitutes by inner stator 31 and cylinder 22 in 2 pairs of linear compressors of the present invention of accompanying drawing.
As shown in Figure 2, inner stator 31 also comprises the support unit 31b that can link together with the outside of cylinder 22, and the inner iron core 31a that is fixed on the support unit 31b outside.
Support unit 32b has the drum that the shape with cylinder 22 is complementary.Be formed with the first helical thread portion 31c on the internal surface of support unit 31b, be used for inner stator 31 and cylinder 22 are linked together, be formed with the second helical thread portion 22b on the outer surface of cylinder 22, be used for being meshed with the first helical thread portion 31c.
By helical thread portion 31c and 22b are meshing with each other in the mode of interlocking, thereby inner stator 31 is securely fixed on the cylinder 22.
As mentioned above, linear compressor of the present invention is by forming first helical thread portion on the internal surface of support unit, and at the outside of support unit installation inner iron core, and on the outer surface of cylinder, form second helical thread portion that is complementary with first helical thread portion, thereby support unit and cylinder are linked together in the mode of interlocking.
Therefore, do not need screw just support unit can be fixed firmly on the cylinder, thereby reduced manufacturing step and reduced manufacture cost.
In addition, linear compressor of the present invention can avoid that cylinder deforms when support unit and cylinder link together, thereby has improved reliability.
Although illustrate and described several preferred embodiment of the present invention above; but those skilled in the art understand easily; under the situation that does not break away from basic principle of the present invention and connotation; can make variation to these embodiments, these variations are included in claims and the desired protection domain of equivalent file thereof.

Claims (2)

1. linear compressor, it comprises:
Produce the external stator and the inner stator in magnetic field;
The moving element of reciprocating while mobile piston between described external stator and described inner stator;
By moving the cylinder that described piston is compressed refrigeration agent therein;
Be formed at first helical thread portion on the internal surface of described inner stator;
Be formed at and be used for second helical thread portion that is meshed with described first helical thread portion on the outer surface of described cylinder.
2. linear compressor according to claim 1 is characterized in that: described inner stator comprises the inner iron core that produces the magnetic line of force and the fixing support unit of inner iron core, and described first helical thread portion is formed on the internal surface of described support unit.
CNA2004100343879A 2003-11-21 2004-04-15 Linear compressor Pending CN1619145A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR0083189/2003 2003-11-21
KR1020030083189A KR20050049269A (en) 2003-11-21 2003-11-21 Linear compressor

Publications (1)

Publication Number Publication Date
CN1619145A true CN1619145A (en) 2005-05-25

Family

ID=34587980

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2004100343879A Pending CN1619145A (en) 2003-11-21 2004-04-15 Linear compressor

Country Status (6)

Country Link
US (1) US20050111999A1 (en)
JP (1) JP2005155594A (en)
KR (1) KR20050049269A (en)
CN (1) CN1619145A (en)
BR (1) BRPI0401577A (en)
IT (1) ITRM20040189A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3083518B2 (en) * 1998-07-03 2000-09-04 三星電子株式会社 Structure and connection method of inner core and cylinder block of linear compressor
DE10190609B4 (en) * 2000-02-17 2010-05-06 Lg Electronics Inc. Stand of a piston engine
CN1230620C (en) * 2001-03-24 2005-12-07 Lg电子株式会社 Reciprocating compressor
KR100477111B1 (en) * 2002-02-01 2005-03-17 삼성전자주식회사 Linear compressor
US7413420B2 (en) * 2003-06-20 2008-08-19 Samsung Electronics Co., Ltd. Linear compressor and method of producing the same

Also Published As

Publication number Publication date
US20050111999A1 (en) 2005-05-26
KR20050049269A (en) 2005-05-25
BRPI0401577A (en) 2005-07-12
JP2005155594A (en) 2005-06-16
ITRM20040189A1 (en) 2004-07-15

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PB01 Publication
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SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication