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US20050207918A1 - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
US20050207918A1
US20050207918A1 US10/873,952 US87395204A US2005207918A1 US 20050207918 A1 US20050207918 A1 US 20050207918A1 US 87395204 A US87395204 A US 87395204A US 2005207918 A1 US2005207918 A1 US 2005207918A1
Authority
US
United States
Prior art keywords
coil body
core
compressor according
injection
stator
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.)
Abandoned
Application number
US10/873,952
Other languages
English (en)
Inventor
Tae Lee
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
Assigned to SAMSUNG GWANGJU ELECTRONICS CO., LTD. reassignment SAMSUNG GWANGJU ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, TAE KYUNG
Publication of US20050207918A1 publication Critical patent/US20050207918A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/06—Adaptations of individual rollers and supports therefor the roller sleeves being shock-absorbing, e.g. formed by helically-wound wires
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/32—Noise prevention features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00—Indexing codes relating to the kind or type of conveyors
    • B65G2812/02—Belt or chain conveyors
    • B65G2812/02128—Belt conveyors
    • B65G2812/02138—Common features for belt conveyors
    • B65G2812/02148—Driving means for the belts

Definitions

  • the present invention relates to a linear compressor, and, more particularly, to a linear compressor having a stator for moving a moving member connected with a piston forward and backward.
  • a compressor is used to compress a coolant and discharge the compressed coolant to the outside in a refrigerating cycle where compression, condensation, expansion, and evaporation processes are consecutively carried out with the coolant as a medium.
  • a linear compressor is used to compress a coolant by means of a linear motor that is capable of carrying out a rectilinear movement, by which a piston is linearly reciprocated.
  • the conventional linear compressor serving to perform the above-mentioned functions comprises: a compressing unit for compressing a coolant in a hermetically sealed container; and a driving unit for transmitting power to the compressing unit.
  • the compressing unit comprises: a cylinder block having a compression chamber defined therein; and a piston disposed in the compression chamber of the cylinder block such that the piston is moved forward and backward to compress the coolant.
  • a cylinder head having an inlet chamber and outlet chamber defined therein.
  • the driving unit comprises: a stator for generating a magnetic field when electric current is supplied to the stator; an inner core disposed while being spaced a prescribed distance from the stator for generating a magnetic flux together with the stator; and a moving member disposed between the stator and the inner core for driving the piston.
  • the stator of the conventional compressor will hereinafter be described in more detail.
  • the stator comprises: a cylindrical bobbin; and a coil wound on the outer circumference of the bobbin. On the bobbin are mounted outer cores in the circumferential direction of the bobbin.
  • the bobbin is provided at the top and bottom parts thereof with core mounting grooves, into which the outer cores are engaged so that the outer cores are fixedly attached to the bobbin.
  • the outer cores are mounted on the bobbin.
  • the outer cores may deviate from their originally mounted positions when the bobbin is deformed due to heat generated during operation of the compressor.
  • the compressor may be damaged when the moving member directly collides with the outer cores.
  • the present invention provides a linear compressor comprising: a piston reciprocated in a cylinder for compressing a coolant; a moving member reciprocated along with the piston; and a stator electro-magnetically interacting with the moving member for driving the moving member, wherein the stator comprises: a coil body formed of wound electric wires; a core disposed on the coil body; and a form-maintaining member for maintaining the shape of the coil body so that the core is supported by means of the coil body.
  • the form-maintaining member is an impregnant penetrated between the electric wires forming the coil body.
  • the coil body and the core are fixedly attached to each other with an injection-molded member filled between the coil body and the core by means of injection molding.
  • the coil body is formed in the shape of a hollow cylinder
  • the core comprises a plurality of cores spaced apart from each other along the outer circumference of the coil body, and the injection-molded member is filled between the cores.
  • each of the cores is provided at the side thereof opposite to the moving member with a pair of teeth parts, the injection-molded member being filled in a separated space defined between the teeth parts.
  • the injection-molded member is formed of a resin material.
  • the compressor further comprises a protection member disposed between the core body and the coil for protecting the coil body.
  • the protection member is made of paper.
  • FIG. 1 is a sectional view of a linear compressor according to the present invention
  • FIG. 2 is a perspective view illustrating a coil body of the linear compressor according to the present invention
  • FIG. 3 is a sectional view illustrating the coil body of the linear compressor according to the present invention.
  • FIG. 4 is an exploded perspective view illustrating how to combine cores with the coil body of the linear compressor according to the present invention
  • FIG. 5 is a perspective view illustrating combination of the cores and the coil body of the linear compressor according to the present invention by means of an injection-molded member;
  • FIG. 6 is a sectional view illustrating a protection member disposed between each core and the coil body of the linear compressor according to the present invention.
  • FIG. 1 is a sectional view of a linear compressor according to the present invention.
  • the linear compressor according to the present invention comprises: a compressing unit 20 for compressing a coolant in a hermetically sealed container 10 ; and a driving unit 30 for driving the compressing unit 20 .
  • the compressing unit 20 comprises: a cylinder block 21 having a compression chamber 21 a defined therein; and a piston 22 disposed in the compression chamber 21 a of the cylinder block 21 such that the piston 22 is moved forward and backward.
  • a cylinder head 23 having an inlet chamber (not shown) and outlet chamber (not shown) defined therein.
  • the driving unit 30 comprises: an inner core 31 disposed at the outside of the cylinder block 21 ; a stator 40 surrounding the inner core 31 while being spaced a prescribed distance from the outer circumference of the inner core for generating a magnetic field; and a moving member 50 having a magnet 51 disposed such that the moving member is vertically reciprocated by means of a magnetic flux between the inner core 31 and the stator 40 .
  • the driving unit 30 is a linear motor.
  • the stator 40 comprises: a coil body 41 for generating a magnetic field when electric current is supplied to the stator 40 ; and outer cores 42 disposed on the coil body while surrounding the coil body 41 such that a magnetic flux passes therethrough.
  • the coil body 41 is formed in the shape of a hollow cylinder.
  • the coil body 41 is made of wound electric wires 41 a .
  • the coil body 41 is provided with a form-maintaining member 41 b for maintaining the shape of the coil body 41 , as shown in FIG. 3 , by which the outer cores 42 are supported.
  • An impregnant such as varnish
  • the impregnant is penetrated into gaps between electric wires 41 a , and is then solidified so that the shape of the coil body 41 is firmly maintained.
  • the varnish is a type of paint, which is made of a natural or synthetic resin dissolved in a solvent. The varnish forms a transparent lustrous film.
  • each outer core 42 comprises an upper outer core part 42 a and a lower outer core part 42 b .
  • To the coil body are attached the outer core parts 42 a and 42 b in correspondence to each other.
  • the outer core parts 42 a and 42 b are provided at the sides thereof opposite to the moving member 50 with teeth parts 42 c and 42 d , respectively, by which the areas of the outer cores 42 electro-magnetically interacting with the moving member 50 are increased with the result that the stroke of the piston 22 is effectively increased.
  • the coil body 41 and the outer cores 42 are fixedly attached to each other with an injection-molded member 43 , which is filled between the coil body 41 and the outer cores 42 by means of injection molding.
  • the injection-molded member 43 is made of a resin material.
  • the injection-molded member 43 is filled between the outer cores 42 and in separated spaces defined between the teeth parts 42 c and 42 d of the outer cores 42 so that the outer cores are securely attached to the coil body 41 .
  • the stator 40 further comprises a protection member 44 disposed between the coil body 41 and each outer core 42 for surrounding the coil body 41 so that damage to the coil body is prevented.
  • the protection member 44 may be a thin paper, by which a magnetic flux smoothly flows between the coil body 41 and the outer core 42 .
  • the coil body 41 and the outer cores 42 are securely attached to each other with the injection-molded member 43 made of a resin material and formed by means of injection molding. Consequently, shake or separation of the outer cores 42 from the coil body 41 due to the vibration generated during the operation of the compressor is prevented.
  • the outer cores 42 are directly attached to the coil body without an additional bobbin. Consequently, deformation of the stator 40 due to heat generated during the operation of the compressor is prevented.
  • the present invention provides a linear compressor wherein outer cores are directly attached to a coil body without an additional bobbin, the outer cores being securely fixed to the coil body with an injection-molded member formed by means of injection molding.
  • the linear compressor according to the present invention requires no bobbin, whereby the number of winding electric wires, which form the coil body, is increased. Consequently, output of the linear motor is increased, the manufacturing process is simplified, and the manufacturing cost is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
US10/873,952 2004-03-17 2004-06-22 Linear compressor Abandoned US20050207918A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040018069A KR20050094005A (ko) 2004-03-17 2004-03-17 리니어 압축기
KR2004-18069 2004-03-17

Publications (1)

Publication Number Publication Date
US20050207918A1 true US20050207918A1 (en) 2005-09-22

Family

ID=34986483

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/873,952 Abandoned US20050207918A1 (en) 2004-03-17 2004-06-22 Linear compressor

Country Status (6)

Country Link
US (1) US20050207918A1 (ja)
JP (1) JP2005264923A (ja)
KR (1) KR20050094005A (ja)
CN (1) CN1670371A (ja)
BR (1) BRPI0402748A (ja)
IT (1) ITTO20040468A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090116983A1 (en) * 2007-11-01 2009-05-07 Sang-Sub Jeong Reciprocating compressor
US20140241919A1 (en) * 2013-02-28 2014-08-28 Sangsub Jeong Motor for compressor and reciprocating compressor having the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100677262B1 (ko) * 2005-01-14 2007-02-02 엘지전자 주식회사 왕복동식 모터의 고정자 및 그 제조 방법
KR100680227B1 (ko) 2005-10-06 2007-02-08 엘지전자 주식회사 리니어 모터의 고정자
CN106286233B (zh) * 2015-06-08 2018-10-02 珠海格力电器股份有限公司 气缸组件、压缩机及空调器

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749343A (en) * 1986-08-08 1988-06-07 Facet Enterprises, Inc. High pressure fluid pump
US4775301A (en) * 1986-06-27 1988-10-04 Cartwright Garry E Oscillating electromagnetic pump with one-way diaphragm valves
US4787823A (en) * 1985-05-22 1988-11-29 Hultman Barry W Electromagnetic linear motor and pump apparatus
US5318412A (en) * 1992-04-03 1994-06-07 General Electric Company Flexible suspension for an oil free linear motor compressor
US5589129A (en) * 1993-02-19 1996-12-31 Kabushiki Kaisha Toshiba Method of manufacturing a molding using a filler or an additive concentrated on an arbitrary portion or distributed at a gradient concentration
US6077054A (en) * 1997-12-23 2000-06-20 Samsung Electronics Co., Ltd. Stator of linear compressor
US6273689B1 (en) * 1998-11-13 2001-08-14 Mikuniadec Corporation Electromagnetic pump with increased accuracy
US6339876B1 (en) * 1998-07-03 2002-01-22 Samsung Electronics Co., Ltd. Method for assembling an inner core/cylinder block assembly for linear compressor
US20030147759A1 (en) * 2002-02-01 2003-08-07 Samsung Electronics Co., Ltd Linear compressor
US20040245863A1 (en) * 2003-06-04 2004-12-09 Lg Electronics Inc. Outer stator for linear compressor motors
US20050112000A1 (en) * 2003-11-21 2005-05-26 Samsung Gwang Ju Electronics Co., Ltd. Linear motor and linear compressor having the same
US6914353B2 (en) * 2003-06-05 2005-07-05 Lg Electronics Inc. Linear motor, method for controlling the same, and linear compressor equipped with the same
US20060261681A1 (en) * 2005-05-17 2006-11-23 Lg Electronics Inc. Stator of linear motor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3621556B2 (ja) * 1997-05-13 2005-02-16 三菱電機株式会社 円筒型積層コア及びその製造方法並びにリニアモータ
KR100374837B1 (ko) * 2001-02-02 2003-03-04 엘지전자 주식회사 리니어 모터의 고정자 조립구조
KR100430213B1 (ko) * 2001-04-07 2004-05-03 주식회사 엘지이아이 왕복동식 모터
KR100397557B1 (ko) * 2001-04-19 2003-09-17 주식회사 엘지이아이 왕복동식 모터의 보빈 및 그 제작방법
KR20040095601A (ko) * 2003-05-09 2004-11-15 삼성광주전자 주식회사 리니어 압축기

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787823A (en) * 1985-05-22 1988-11-29 Hultman Barry W Electromagnetic linear motor and pump apparatus
US4775301A (en) * 1986-06-27 1988-10-04 Cartwright Garry E Oscillating electromagnetic pump with one-way diaphragm valves
US4749343A (en) * 1986-08-08 1988-06-07 Facet Enterprises, Inc. High pressure fluid pump
US5318412A (en) * 1992-04-03 1994-06-07 General Electric Company Flexible suspension for an oil free linear motor compressor
US5589129A (en) * 1993-02-19 1996-12-31 Kabushiki Kaisha Toshiba Method of manufacturing a molding using a filler or an additive concentrated on an arbitrary portion or distributed at a gradient concentration
US6077054A (en) * 1997-12-23 2000-06-20 Samsung Electronics Co., Ltd. Stator of linear compressor
US6339876B1 (en) * 1998-07-03 2002-01-22 Samsung Electronics Co., Ltd. Method for assembling an inner core/cylinder block assembly for linear compressor
US6273689B1 (en) * 1998-11-13 2001-08-14 Mikuniadec Corporation Electromagnetic pump with increased accuracy
US20030147759A1 (en) * 2002-02-01 2003-08-07 Samsung Electronics Co., Ltd Linear compressor
US20040245863A1 (en) * 2003-06-04 2004-12-09 Lg Electronics Inc. Outer stator for linear compressor motors
US6914353B2 (en) * 2003-06-05 2005-07-05 Lg Electronics Inc. Linear motor, method for controlling the same, and linear compressor equipped with the same
US20050112000A1 (en) * 2003-11-21 2005-05-26 Samsung Gwang Ju Electronics Co., Ltd. Linear motor and linear compressor having the same
US20060261681A1 (en) * 2005-05-17 2006-11-23 Lg Electronics Inc. Stator of linear motor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090116983A1 (en) * 2007-11-01 2009-05-07 Sang-Sub Jeong Reciprocating compressor
US8177529B2 (en) * 2007-11-01 2012-05-15 Lg Electronics, Inc. Reciprocating compressor
US20140241919A1 (en) * 2013-02-28 2014-08-28 Sangsub Jeong Motor for compressor and reciprocating compressor having the same
KR20140109545A (ko) * 2013-02-28 2014-09-16 엘지전자 주식회사 압축기용 모터 및 이를 구비한 왕복동식 압축기
US9537381B2 (en) * 2013-02-28 2017-01-03 Lg Electronics Inc. Motor for compressor and reciprocating compressor having the same
EP2773024A3 (en) * 2013-02-28 2017-09-27 LG Electronics, Inc. Motor for compressor and reciprocating compressor having the same
KR102002119B1 (ko) 2013-02-28 2019-07-19 엘지전자 주식회사 압축기용 모터 및 이를 구비한 왕복동식 압축기

Also Published As

Publication number Publication date
ITTO20040468A1 (it) 2004-10-08
BRPI0402748A (pt) 2005-11-01
KR20050094005A (ko) 2005-09-26
JP2005264923A (ja) 2005-09-29
CN1670371A (zh) 2005-09-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SAMSUNG GWANGJU ELECTRONICS CO., LTD., KOREA, REPU

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LEE, TAE KYUNG;REEL/FRAME:015511/0981

Effective date: 20040607

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION