CN1619916A - Linear motor and linear compressor having the same - Google Patents
Linear motor and linear compressor having the same Download PDFInfo
- Publication number
- CN1619916A CN1619916A CNA2004100343864A CN200410034386A CN1619916A CN 1619916 A CN1619916 A CN 1619916A CN A2004100343864 A CNA2004100343864 A CN A2004100343864A CN 200410034386 A CN200410034386 A CN 200410034386A CN 1619916 A CN1619916 A CN 1619916A
- Authority
- CN
- China
- Prior art keywords
- extensions
- coil
- stator
- iron core
- linear compressor
- 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
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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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Linear Motors (AREA)
Abstract
The present invention relates a linear compressor. A stator of the linear compressor includes a core provided with an opening at outside thereof, two extended parts extended inward from both ends of the opening of the core to cover portions of the opening and to be spaced apart from each other, and a coil wound in a space inside the two extended parts and a space between the two extended parts. That is, since the coil is wound in the space between the two extended parts, a magnetic flux generated around the coil is increased, so that an impellent force of a mover is increased. Accordingly, performance of the linear compressor is improved.
Description
The application requires the priority of korean patent application NO.2003-83190, 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 in general to a kind of linear compressor, more particularly, relates to a kind of like this linear compressor, and promptly this linear compressor comprises the linear electric motors that power supply and operated piston be installed.
Background technology
Usually, linear compressor be used for to refrigerating plant for example the cold-producing medium of refrigerator and air-conditioning compress, it is meant and adopts linear electric motors of straight reciprocating motion to come the reciprocating compressor of driven plunger as drive unit.
Existing linear compressor comprises cylinder body, piston and cylinder cap, form a compression chamber in cylinder body, but piston is set at reciprocating motion in the compression chamber, is formed with the discharge side that is used to suck the suction chamber of cold-producing medium and is used for discharging refrigerant in cylinder cap.
In addition, as the reciprocating drive unit of driven plunger, existing linear compressor comprises linear electric motors, first iron core and stator that linear electric motors comprise moving component and are separately fixed at the moving component inboard and the outside, this moving component and piston link together and are connected as a single entity with the cylindrical shape magnet that centers on cylinder body.
Stator comprises second iron core of being made by steel current conducting plate and the coil that produces the magnetic line of force.In second iron core, second iron core opens wide towards a side of magnet, and two extensions extend predetermined distance to hide opening portion from the opening inward at both ends of second iron core.These two extensions can make second iron core increase towards the zone of magnet, thereby increase the stroke of magnet.
Coil is arranged in the inner space of two extensions, and therefore, second iron core can produce the magnetic line of force, and the magnetic line of force flows into first iron core from second iron core through magnet.
But in existing linear compressor, the installation site of coil is limited in being arranged in two extension volume inside of second iron core.
Therefore, if increase the motive force that coil diameter increases moving component, just have to increase the volume of stator.
Summary of the invention
Therefore, one aspect of the present invention provides a kind of linear electric motors and has the linear compressor of this linear electric motors, and it can effectively improve the motive force of moving component by to being wound on the improvement that stator loop construction on every side carries out.
Other characteristics of the present invention and/or advantage will partly be described in the specification of back, and can partly clearly draw from specification or can draw in practical application of the present invention.
Above-mentioned and/or the others of the present invention realize by a kind of linear compressor is provided, this linear compressor comprises and can come the moving component of compressed refrigerant and can produce the stator that interactional magnetic field takes place with moving component with the piston reciprocating motion that described stator comprises: the iron core that has opening in the outside; Extend to hide two extensions of described opening portion from described opening inward at both ends unshakable in one's determination, they are spaced apart from each other; And be wound on coil in described two extension volume inside and the space between described two extensions.
In linear compressor, described coil is wound into the shape that the shape with described two extensions is complementary.
In linear compressor, described two extensions have to tilt and in outer ledge approaching relative end mutually.
In linear compressor, described two extensions have each all relative end of semicircular in shape.
Above-mentioned and/or the others of the present invention realize by a kind of linear electric motors are provided, described linear electric motors comprise stator, first unshakable in one's determination and between described stator and described first iron core reciprocating magnet.Described stator comprises: second iron core that has opening in the outside; Extend to hide two extensions of described opening portion from the described second opening inward at both ends unshakable in one's determination, they are spaced apart from each other; And be wound on coil in described two extension volume inside and the space between described two extensions.
In linear electric motors, described coil is wound into the shape that the shape with described two extensions is complementary.
In linear electric motors, described two extensions have to tilt and in outer ledge approaching relative end mutually.
In linear electric motors, described two extensions have each all relative end of semicircular in shape.
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 integrally-built side cutaway view that shows linear compressor of the present invention;
Fig. 2 is the stator in the linear compressor shown in Figure 1 and the perspective view of moving component;
Fig. 3 is the profile of the stator of another embodiment of the present invention;
Fig. 4 is the profile that shows the stator of another embodiment of the present invention.
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.
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 forms an enclosed construction by 12 combinations of upper shell 11 and lower house, compression set 20 is used for extraction, compression and discharging refrigerant, and drive unit 30 is used for drive compression device 20.
Compression set 20 comprises cylinder body 21, piston 22 and cylinder cap 23, and cylinder body 21 forms a compression chamber 21a, but piston 22 is set at reciprocating motion among the compression chamber 21a, and cylinder cap 23 is used for extracting and discharging refrigerant.In addition, support unit 25 is protruding from the lower external face of cylinder body 21, is used for the stator 32 of supporting driving device 30, and the back will be described.The suction chamber 23a and the discharge side 23b that work with compression chamber 21a are formed in the cylinder cap 23, when piston 22 reciprocating motions, can distinguish suction and discharging refrigerant.In addition, be provided with valve plate 24 between cylinder cap 23 and cylinder body 21, suction valve 24a and dump valve 24b are installed on the valve plate 24, are respectively applied for opening and closing suction chamber 23a and discharge side 23b.
Drive unit 30 comprises linear electric motors, these linear electric motors comprise first iron core 31, stator 32 and moving component 35, first iron core 31 links together with the outside of cylinder body 21, stator 32 and first unshakable in one's determination 31 certain at interval distance, moving component 35 is arranged between first iron core 31 and the stator 32, and can interact with the electric field that stator 32 is produced.
Moving component 35 comprises around cylinder body 21 cylindrical shape magnet 35a that is provided with and the support unit 35b that is used for fixing and supports magnet 35a.The support unit 35b of moving component 35 and the connecting axle 22a coaxial arrangement that is arranged on piston 22 tops are so that the support unit 35b of moving component 35 can be with piston 22 reciprocating motion vertically.
First iron core 31 and stator 32 are separately positioned on the inboard and the outside of magnet 35a.In the case, first iron core 31 is set at the outside of cylinder body 21 and forms drum, thus first unshakable in one's determination 31 guided-moving parts 35 reciprocating motions simultaneously, and make the magnetic line of force flow through the magnet 35a of moving component 35 reposefully from stator 32.
Stator 32 comprises the coil 34 of second unshakable in one's determination 33 and the generation magnetic line of force made by steel current conducting plate.The lower end of stator 32 is supported by support unit 25, and the upper end of stator 32 is by fixed support 40 supportings.
Describe the structure of the stator 32 of linear compressor of the present invention in detail below in conjunction with Fig. 2.
As shown in Figure 2, second iron core 33 of stator 32 is made by radially stacked steel current conducting plate.In the case, second iron core 33 opens wide towards the side of magnet 35a, and the first and second extension 33b and 33c extend internally from the top and bottom of the opening 33a of second iron core 33, thereby covers in the upper and lower of opening 33a.
Therefore, the first and second extension 33b and 33c have increased the zone of second iron core 33 towards magnet 35a, thereby have increased the stroke of magnet 35a.The first and second extension 33b and 33c space are arranged, so that the magnetic line of force that coil 34 is produced flows to first iron core 31 from second iron core 33 through magnet 35a reposefully.
Coil 34 by being formed at the first and second extension 33b and 33c inside the first holding portion 33d and be formed at that the second holding portion 33e in the space reels between the first and second extension 33b and the 33c.In the case, the shape that coil 34 is wound into and the first holding portion 33d and the second holding portion 33e are complementary, thereby farthest are wound among the first and second holding portion 33d and the 33e.
As shown in Figure 3, in second iron core 33, the end of the first and second extension 33b and 33c can tilt, so that mutually near leaking, and when the magnetic line of force is flowed through space between the first and second extension 33b and the 33c, make the magnetic line of force flow to magnet 35a to avoid the producing magnetic line of force at their outward flange.
In the case, coil 34 is wound into the shape that the shape with the first and second extension 33b and 33c is complementary, thereby coil 34 is wound in the space between the first and second extension 33b and the 33c.
As shown in Figure 4, each end of the first and second extension 33b and 33c can be semicircle to avoid taking place magnetic line of force leakage.In the case, coil 34 is wound into the shape that the end shape with the first and second extension 33b and 33c is complementary.
To the entire work process and the effect of linear compressor of the present invention be described below.
When the coil 34 of stator 32 is supplied with alternating current (AC), between the stator 32 and first iron core 31, produce magnetic field.Therefore, because the alternating current effect makes the polarity generating period variation in magnetic field, thereby moving component 35 is together with the magnet 35a reciprocating motion vertically that links together with it.In addition, when moving component 35 reciprocating motions,, simultaneously cold-producing medium is compressed with piston 22 reciprocating motion in compression chamber 21a that this moving component 35 links together.
In the case, in the stator 32 of linear compressor of the present invention, coil 34 not only is wound among the first holding portion 33d that is formed at the first and second extension 33b and 33c inside, is formed between the first and second extension 33b and the 33c among the second holding portion 33e in the space but also be wound on.Therefore, when coil 34 reel with existing compressor in during the identical number of turn, the diameter of coil 34 may increase.
Therefore, owing to reduced the resistance of coil 34, thus increase by the current value of coil 34 and the magnetic flux of coil 34 generation on every side, therefore increased the motive force of moving component 35.
As mentioned above, the stator of linear compressor of the present invention has opening in the one side, and is included in the iron core that opening part has two extensions, and is wound on the coil in the formed space between two extensions of two extension inner space neutralizations.
Just, coil also is wound between two extensions and forms in the space, has therefore increased the magnetic flux that produces around the coil, thereby has increased the motive force of this moving component.Therefore improved the overall performance of compressor.
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 embodiment, these variations are included in claims and the desired protection range of equivalent file thereof.
Claims (8)
1. linear compressor, it comprises:
Can be with the moving component of piston reciprocating motion with compressed refrigerant; And
Produce with described moving component the stator in interactional magnetic field takes place, described stator comprises: the iron core that has opening in the outside; Extend to hide two extensions of described opening portion from described opening inward at both ends unshakable in one's determination, they are spaced apart from each other; And be wound on coil in described two extension volume inside and the space between described two extensions.
2. linear compressor according to claim 1 is characterized in that: described coil is wound into the shape that the shape with two extensions is complementary.
3. linear compressor according to claim 2 is characterized in that: described two extensions have to tilt and in outer ledge approaching relative end mutually.
4. linear compressor according to claim 2 is characterized in that: described two extensions have each all relative end of semicircular in shape.
5. linear electric motors comprise:
Stator, it comprises: second iron core that has opening in the outside: extend to hide two extensions of described opening portion from the described second opening inward at both ends unshakable in one's determination, they are spaced apart from each other; And be wound on coil in described two extension volume inside and the space between described two extensions;
First iron core; And
Reciprocating magnet between described stator and described first iron core.
6. linear electric motors according to claim 5 is characterized in that: described coil is wound into the shape that the shape with described two extensions is complementary.
7. linear electric motors according to claim 6 is characterized in that: described two extensions have to tilt and in outer ledge approaching relative end mutually.
8. linear electric motors according to claim 6 is characterized in that: described two extensions have each all relative end of semicircular in shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR0083190/2003 | 2003-11-21 | ||
| KR10-2003-0083190A KR100537011B1 (en) | 2003-11-21 | 2003-11-21 | Linear motor and linear compressor having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1619916A true CN1619916A (en) | 2005-05-25 |
| CN100517911C CN100517911C (en) | 2009-07-22 |
Family
ID=34587981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100343864A Expired - Fee Related CN100517911C (en) | 2003-11-21 | 2004-04-15 | Linear motor and linear compressor having the same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050112000A1 (en) |
| JP (1) | JP2005155593A (en) |
| KR (1) | KR100537011B1 (en) |
| CN (1) | CN100517911C (en) |
| BR (1) | BRPI0401581A (en) |
| IT (1) | ITRM20040188A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025240A (en) * | 2011-01-04 | 2011-04-20 | 中国电子科技集团公司第二十一研究所 | Linear motor structure for Stirling refrigerator |
| CN103001451A (en) * | 2011-09-13 | 2013-03-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear motor and compressor with same |
| WO2014071854A1 (en) * | 2012-11-07 | 2014-05-15 | 海尔集团公司 | Stator of linear compressor and fixing method therefor, linear electric machine and linear compressor |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050094005A (en) * | 2004-03-17 | 2005-09-26 | 삼성광주전자 주식회사 | Linear compressor |
| JP2008511792A (en) * | 2004-08-30 | 2008-04-17 | エルジー エレクトロニクス インコーポレイティド | Linear compressor |
| KR100680227B1 (en) * | 2005-10-06 | 2007-02-08 | 엘지전자 주식회사 | Stator of linear motor |
| BRPI1103496A2 (en) | 2011-07-20 | 2013-10-01 | Whirlpool Sa | linear motor for compressor and compressor provided with linear motor |
| DE102017103090B4 (en) * | 2017-02-15 | 2020-06-04 | Kolektor Group D.O.O. | Electromagnetic linear actuator |
| EP3473855B1 (en) | 2017-09-28 | 2021-03-10 | LG Electronics Inc. | Linear compressor |
| KR102107062B1 (en) * | 2018-09-17 | 2020-05-06 | 엘지전자 주식회사 | Linear motor and linear compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6077054A (en) * | 1997-12-23 | 2000-06-20 | Samsung Electronics Co., Ltd. | Stator of linear compressor |
| CN1264268C (en) * | 1999-06-21 | 2006-07-12 | 菲舍尔和佩克尔有限公司 | Linear motor |
| KR100397557B1 (en) * | 2001-04-19 | 2003-09-17 | 주식회사 엘지이아이 | Bobbin for reciprocating compressor and method for manufacturing the bobbin |
-
2003
- 2003-11-21 KR KR10-2003-0083190A patent/KR100537011B1/en not_active IP Right Cessation
-
2004
- 2004-03-09 JP JP2004066140A patent/JP2005155593A/en active Pending
- 2004-03-19 US US10/805,671 patent/US20050112000A1/en not_active Abandoned
- 2004-04-13 BR BR0401581-9A patent/BRPI0401581A/en not_active IP Right Cessation
- 2004-04-15 CN CNB2004100343864A patent/CN100517911C/en not_active Expired - Fee Related
- 2004-04-15 IT IT000188A patent/ITRM20040188A1/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025240A (en) * | 2011-01-04 | 2011-04-20 | 中国电子科技集团公司第二十一研究所 | Linear motor structure for Stirling refrigerator |
| CN103001451A (en) * | 2011-09-13 | 2013-03-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear motor and compressor with same |
| CN103001451B (en) * | 2011-09-13 | 2015-11-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear electric motors and there is its compressor |
| WO2014071854A1 (en) * | 2012-11-07 | 2014-05-15 | 海尔集团公司 | Stator of linear compressor and fixing method therefor, linear electric machine and linear compressor |
| US9923441B2 (en) | 2012-11-07 | 2018-03-20 | Haier Group Corporation | Stator of linear compressor and fixing method thereof, linear motor, and linear compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050112000A1 (en) | 2005-05-26 |
| JP2005155593A (en) | 2005-06-16 |
| CN100517911C (en) | 2009-07-22 |
| BRPI0401581A (en) | 2005-07-12 |
| KR100537011B1 (en) | 2005-12-16 |
| KR20050049270A (en) | 2005-05-25 |
| ITRM20040188A1 (en) | 2004-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20150415 |
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| EXPY | Termination of patent right or utility model |