CN1800640A - Linear compressor - Google Patents

Linear compressor Download PDF

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Publication number
CN1800640A
CN1800640A CNA200510136964XA CN200510136964A CN1800640A CN 1800640 A CN1800640 A CN 1800640A CN A200510136964X A CNA200510136964X A CN A200510136964XA CN 200510136964 A CN200510136964 A CN 200510136964A CN 1800640 A CN1800640 A CN 1800640A
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CN
China
Prior art keywords
absorbing unit
compressor according
housing
protective cover
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA200510136964XA
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Chinese (zh)
Other versions
CN100445556C (en
Inventor
朴钟振
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1800640A publication Critical patent/CN1800640A/en
Application granted granted Critical
Publication of CN100445556C publication Critical patent/CN100445556C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0033—Pulsation and noise damping means with encapsulations
    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F04B39/121—Casings

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

Abstract

Disclosed herein is a linear compressor wherein a vibration absorbing unit is mounted at the outside of a compressor shell, whereby the number of elements inside the shell is reduced, resulting in a reduced compressor size. Also, the vibration absorbing unit is enclosed by a protective cover to be protected from exterior shock or impurities, whereby damage or malfunction of elements is prevented, achieving improved durability and reliability of the compressor.

Description

Linearkompressor
Technical field
The present invention relates to Linearkompressor; particularly relate to a kind of like this Linearkompressor; wherein the absorbing unit is installed in the compression case external body; and seal by protective cover; can reduce the size of housing thus; the absorbing unit being effectively protected and avoiding external force influences, thereby improves the serviceability and the reliability of compressor.
Background technique
Usually, Linearkompressor is such equipment, and it utilizes the linear driving force of linear electric machine to make piston in the to-and-fro motion of cylinder body internal linear, to suck, to compress and to discharge fluid.
Traditional Linearkompressor comprises: compression unit, and it is equipped with piston and cylinder body in housing, with compressed fluid; Linear electric machine, it has stator and mover with in the reciprocal driven plunger of cylinder body internal linear.
Cylinder body is the round column structure of its opposite end opening.Thereby, piston is inserted in the cylinder body by one of its opening end.The other end at cylinder body is provided with discharge cover, so that discharged by it by the fluid of Piston Compression.Between piston and discharge cover, be formed with compression chamber.
Equally, flexibly be supported with escape cock at the discharge cover place to open and close compression chamber.
The stator of linear electric machine comprises: outer core; Spaced apart and have the inner core of predetermined gap with it with outer core to the inside; Be installed in the Bobbin in the external coil; Be wrapped in the coil on the Bobbin.The mover of linear electric machine comprises: magnet, the magnetic force lower linear to-and-fro motion that it produces around coil; And magnet frame, be used for the linear reciprocating motion of magnet is passed to piston.
Magnet is installed in a side of magnet frame, and piston is fixed on the opposite side of magnet frame.
In the existing linear compression machine operation of configuration as previously mentioned,, then around coil, produce magnetic field, because magnet and magnetic field interaction cause the magnet linear reciprocating motion if on coil, apply driving voltage.
The linear reciprocating motion of magnet is passed to piston by magnet frame, makes piston in the to-and-fro motion of cylinder body internal linear.
Thereby because piston is in the to-and-fro motion of cylinder body internal linear, the fluid in the cylinder body is compressed, and compressed fluid is disposed to the outside by exhaust unit.
Yet the conventional linear compressor has such problem, and its all elements comprise fluid compressing member, supporting member and damping element, all are installed in enclosure interior, cause being difficult to reduce the size of Linearkompressor.
Simultaneously, when damping element is installed in outside, its externally the influence of impurity and impact be damaged down and lost efficacy, cause the serviceability of compressor and reliability to reduce.
Summary of the invention
Therefore, made the present invention, an object of the present invention is to provide a kind of Linearkompressor based on above problem; wherein the absorbing unit is installed in the compression case external body; and sealed by protective cover, thereby reduced shell dimension, improved the durability and the reliability of compressor simultaneously.
According to the present invention, above-mentioned and other purpose can realize that this compressor comprises: the housing that is formed with entrance and exit by following Linearkompressor is provided; Be installed in the housing and be suitable for producing the linear electric machine of linear motion power; Be installed in the cylinder body in the housing; Link to each other, be suitable for the piston of compressed fluid when the to-and-fro motion of cylinder body internal linear with linear electric machine; It is outer to absorb the absorbing unit of vibration to be installed in housing; With the protective gear that is installed in around the absorbing unit with protection absorbing unit.
Preferably, protective gear can be and is configured to the protective cover that seals the absorbing unit and be connected with housing.
Preferably, protective cover is the cylindrical of an end opening, and the opening end of protective cover is connected with housing.
Preferably, be formed with a plurality of radiation holes on the protective cover, so that internal heat is discharged into the outside.
Preferably, a plurality of radiation holes each other can be spaced apart within a predetermined distance, and each radiation hole can be slit shape.
Preferably, Linearkompressor can further comprise: the preceding discharge cover of outlet is set, is suitable for reducing by outlet fluid discharged flow velocity; The discharge pipe that links to each other with discharge cover is used for the fluid in the discharge cover is exported to the outside.
Preferably, protective cover can be equipped with pore, is used to make discharge pipe to pass.
Preferably, the absorbing unit can be connected to discharge cover.
Preferably, the absorbing unit can comprise: the hub member that links to each other with discharge cover; The counterweight member that outwards separates with hub member; With a plurality of leaf springs that hub member are connected to counterweight member.
Preferably, hub member is a ring.
The Linearkompressor that utilizes the present invention to construct as described above, the absorbing unit is installed in the compression case external body.This has the effect that minimizing is installed in number of elements in the housing, has reduced the size of housing simultaneously, obtains the little compressor of size.
Further, by avoiding the influence of external impact and impurity with protective cover sealing absorbing unit to protect the absorbing unit, make element avoid the danger that damages and lost efficacy, the result has improved the durability and the reliability of compressor.
And then by being formed on a plurality of radiation holes on the protective cover, the heat in the protective cover can effectively be discharged into the outside, has prevented that compression is overheated in the course of the work.
Description of drawings
From the detailed description below in conjunction with accompanying drawing, the present invention aforementioned and other purposes, feature and other advantages will be more readily understood, wherein:
Fig. 1 is a longitdinal cross-section diagram, shows the internal structure according to Linearkompressor of the present invention; With
Fig. 2 is the representative side section view of Fig. 1 Linearkompressor.
Embodiment
Below with reference to the accompanying drawings the preferred embodiments of the present invention are described.
Fig. 1 is a longitdinal cross-section diagram, shows the internal structure according to Linearkompressor of the present invention.Fig. 2 is the representative side section view of Fig. 1 Linearkompressor.
As illustrated in fig. 1 and 2, Linearkompressor according to the present invention comprises: housing 50 is formed with inlet 51 and outlet 52 at its diverse location; Linear electric machine 60 is installed in and is used to produce motoricity in the housing 50; Be installed in the cylinder body 70 in the housing 50; Piston 71 is connected with linear electric machine 60, thereby so that at the cylinder body 70 internal linear compressed fluid that reciprocally moves; Absorbing unit 80 is installed in outside the housing 50, to absorb the vibration of housing 50; And protective gear, be designed to seal absorbing unit 80, avoid external force with protection absorbing unit 80.
Exhaust unit assembly 90 is installed in before the outlet 52 of housing 50, and the fluid of compression is discharged outside the cylinder body 70 by exhaust unit assembly 90 in cylinder body 70 like this.
Housing 50 is cylindrical, is formed with outlet 52 and inlet 51 respectively in its front and rear surfaces.Suction pipe 53 injects inlet 51 external fluid is directed in the housing 50.
Linear electric machine 60 totally is divided into stator and mover.Stator comprises: the outer core of laminated; Be similarly the inner core of laminated, inner core 62 inwardly with outer core 61 spaced apart and between keep the gap be scheduled to; With the coil 63 that is installed in the outer core 61, in order to produce magnetic field.Mover comprises: magnet 64, and it is between outer core 61 and inner core 62, and the magnetic force lower linear that is suitable for producing around coil 63 moves; Magnet frame 65, it all links to each other with piston 71 with magnet 64, is passed to piston 71 with the linear motion power with magnet 64.
Cylinder body 70 directly is mounted to the inner wall surface of housing 50.Concrete, cylinder body 70 is positioned at housing 50 inner outlets 52 places.
Cylinder body 70 is the round column structure of two opposite end openings.90 of piston 71 and exhaust unit assemblies form compression chamber C in cylinder body 70.
Spring support 74 is connected with the rear end of piston 71, and main spring 75 is installed between spring support 74 and housing 50 facing surfaces with support piston 71 flexibly.
Piston 71 inside are formed with suction passage 72, import wherein from the fluid of suction pipe 53.Simultaneously, near piston 71 front ends, be formed with a plurality of suction ports 73, and suction valve 76 be installed, to open and close a plurality of suction ports 73 at piston 71 front ends.
Be connected with baffler 54 behind piston 71, it is connected with suction pipe 53.Baffler 54 is used to cut down the suction noise of fluid.
Exhaust unit assembly 90 comprises: discharge cover 91, be installed in the outer wall surface of housing 50, and be suitable for reducing from exporting 52 fluid discharged flow velocitys; Escape cock 92 is arranged in discharge cover 91 so that closely contact with the opening end of cylinder body 70, and escape cock 92 is used to open and close compression chamber C; With discharging spring 93, it is supported flexibly to support escape cock 92 by discharge cover 91.
Discharge cover 91 is a hat, is connected with the front surface of housing 50.Discharge pipe 94 is connected extremely outside with the direct fluid that will enter discharge cover 91 with the certain position of discharge cover 91.
Simultaneously, absorbing unit 80 is mounted to discharge cover 91.Absorbing unit 80 comprises: hub member 82 links to each other with discharge cover 91 by coupling shaft 81; Counterweight member 83 is radially with hub member 82 spaced apart intended distances; With a plurality of leaf springs 84, hub member 82 is connected to counterweight member.
Hub member 83 is for having the annulus of predetermined quality.A plurality of leaf springs 84 are set, are used for respectively the front and rear surfaces of hub member 82 being connected to the front and rear surfaces of counterweight member 83.
Preferably, leaf spring 84 is by the front and rear surfaces of bolt to counterweight member 83.
Simultaneously, be provided with protective gear is avoided foreign matter and impact with protection absorbing unit 80 influence around 80 in the absorbing unit.In the present invention, protective gear is a protective cover 85, is used to seal absorbing unit 80.
Protective cover 85 is the cylindrical of an end opening.The opening end of protective cover 85 is connected with the front surface of housing 50.
In this case, preferred, protective cover 85 is connected by welding or fastening piece with the front surface of housing 50.
Be equipped with a plurality of radiation holes 87 on the protective cover 85, so that the heat discharge in the protective cover 85 is extremely outside.
Here, a plurality of radiation holes 87 form along intended distance punching spaced apart in the lateral attitude of cylinder protective cover 85.Especially, each radiation hole 87 is elongated flute profile.
Determine that at one of protective cover 85 position also is equipped with a pore 86, so that discharge pipe 94 extend out to outside the protective cover 85 by pore 86.
Below, with the foregoing operation of explanation according to Linearkompressor of the present invention.
When operation linear electric machine 60, magnet 64 is linear reciprocating motion with near coil 63 magnetic field interactions that produce.
The linear reciprocating motion of magnet 64 is passed to piston 71 by magnet frame 65, makes piston 71 linear reciprocating motion continuously in cylinder body 70.Therefore, piston 71 compression imports the fluid of the compression chamber C of cylinders 70, and will be compressed fluid and drain into discharge cover 91.As long as piston 71 to-and-fro motion linearly just repeats importing, compression and exhaust fluid continuously.
More particularly, when piston 71 moved backward, suction valve 76 was opened, and made fluid in the suction passage 72 of piston 71 import the compression chamber C of cylinder bodies 70 by suction port 73.
Then, if piston 71 moves forward towards compression chamber C, the fluid that compresses in compression chamber just promotes escape cock 92 forward.Thereby escape cock 92 is opened, and is compressed fluid and is discharged into the outside by discharge cover 91 and discharge pipe 94.
Simultaneously, in 60 operation periods of linear electric machine, the moving direction that absorbing unit 80 is used to absorb property motor 60 along the line and piston 71 is delivered to the vibration on it.
More specifically, the vibration of transmitting along piston 71 moving direction is absorbed by leaf spring 84.In addition, utilize the counterweight member 83 that is provided with in the absorbing unit 80, reduce the eigen frequency of Linearkompressor, thereby reduce the vibration of Linearkompressor.
Further, in the present invention, because protective cover 85 is mounted to sealing absorbing unit 80, so absorbing unit 80 can be avoided the influence of foreign matter and impact by safety protection.
Find out obviously that from the explanation of front the Linearkompressor according to the present invention that disposes by the front explanation has following effect.
At first, according to the present invention, it is external that the absorbing unit is installed in compression case.This has reduced the number of elements that is installed in the housing, and the result reduces the size of housing, realizes the less compressor of size.
The second, according to the present invention, the absorbing unit is sealed by protective cover, avoids the influence of external impact or impurity with protection absorbing unit.Thereby make the absorbing unit avoid impaired or inefficacy, the result strengthens the durability and the reliability of compressor.
The 3rd, protective cover is provided with a plurality of radiation holes, arrives the heat discharge of inside outside.Therefore, Linearkompressor of the present invention does not have risk of overheating during operation.
Although disclosed the preferred embodiments of the present invention for illustrative purposes, do not breaking away from the scope and spirit that disclose as claims, those skilled in the art still may carry out multiple modification, replenish and substitute.

Claims (10)

1. Linearkompressor comprises:
Be formed with the housing of entrance and exit;
Be installed in the housing and be suitable for producing the linear electric machine of linear motion power;
Be installed in the cylinder body in the housing;
Piston links to each other with linear electric machine, and is suitable for compressed fluid when the to-and-fro motion of cylinder body neutral line;
Be installed in outside to absorb the absorbing unit of vibration; With
Be installed in the absorbing unit on every side to protect the protective gear of absorbing unit.
2. compressor according to claim 1, wherein protective gear is a protective cover, is configured to seal the absorbing unit and is connected with housing.
3. compressor according to claim 2, wherein protective cover is the cylindrical of an end opening, the opening end of protective cover is connected with housing.
4. compressor according to claim 2, wherein protective cover is formed with a plurality of radiation holes, to arrive the heat discharge of inside outside.
5. compressor according to claim 4, it is spaced apart that wherein a plurality of radiation holes are pressed intended distance each other, and each all is a slit shape.
6. compressor according to claim 5 further comprises:
Be arranged on the preceding discharge cover of floss hole, be suitable for cutting down flow velocity by the floss hole fluid discharged; With
The discharge pipe that is connected with discharge cover is used for the fluid in the discharge cover is guided to the outside.
7. compressor according to claim 6, wherein protective cover is equipped with pore, is used to make discharge pipe to pass.
8. compressor according to claim 6, wherein the absorbing unit is connected with discharge cover.
9. compressor according to claim 8, wherein the absorbing unit comprises:
The hub member that is connected with discharge cover;
With the outside isolated counterweight member of hub member; And
The leaf spring of a plurality of connection hub member and counterweight member.
10. compressor according to claim 9, wherein counterweight member is a ring.
CNB200510136964XA 2005-01-07 2005-12-16 Linear compressor Expired - Fee Related CN100445556C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050001817A KR100680205B1 (en) 2005-01-07 2005-01-07 Linear compressor
KR1020050001817 2005-01-07

Publications (2)

Publication Number Publication Date
CN1800640A true CN1800640A (en) 2006-07-12
CN100445556C CN100445556C (en) 2008-12-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200510136964XA Expired - Fee Related CN100445556C (en) 2005-01-07 2005-12-16 Linear compressor

Country Status (6)

Country Link
US (1) US20060153712A1 (en)
EP (1) EP1686264B1 (en)
JP (1) JP4890841B2 (en)
KR (1) KR100680205B1 (en)
CN (1) CN100445556C (en)
DE (1) DE602005004644T2 (en)

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CN101828035B (en) * 2007-10-24 2012-09-26 Lg电子株式会社 Linear compressor
CN105987113A (en) * 2015-02-09 2016-10-05 珠海格力节能环保制冷技术研究中心有限公司 Spring supporting part, rotor assembly, pump body structure and compressor
CN104653430B (en) * 2013-11-25 2017-05-03 青岛海尔智能技术研发有限公司 Linear compressor with air cylinder fixing inner stator
CN108343589A (en) * 2016-07-21 2018-07-31 陕西仙童科技有限公司 A kind of novel piston component, compression unit and oil-free lubrication Linearkompressor
CN112097430A (en) * 2020-08-31 2020-12-18 同济大学 Low-noise refrigerator
CN112129012A (en) * 2020-08-31 2020-12-25 同济大学 Closed vibrator, refrigerator and compressor

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KR101681588B1 (en) * 2010-07-09 2016-12-01 엘지전자 주식회사 Linear compressor
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CN104662296B (en) * 2012-09-03 2017-06-20 Lg电子株式会社 Reciprocating compressor and the method for driving the reciprocating compressor
KR102238339B1 (en) * 2016-05-03 2021-04-09 엘지전자 주식회사 linear compressor
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KR102257642B1 (en) * 2019-07-05 2021-05-31 엘지전자 주식회사 Linear compressor
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101828035B (en) * 2007-10-24 2012-09-26 Lg电子株式会社 Linear compressor
CN104653430B (en) * 2013-11-25 2017-05-03 青岛海尔智能技术研发有限公司 Linear compressor with air cylinder fixing inner stator
CN105987113A (en) * 2015-02-09 2016-10-05 珠海格力节能环保制冷技术研究中心有限公司 Spring supporting part, rotor assembly, pump body structure and compressor
CN108343589A (en) * 2016-07-21 2018-07-31 陕西仙童科技有限公司 A kind of novel piston component, compression unit and oil-free lubrication Linearkompressor
CN108397369A (en) * 2016-07-21 2018-08-14 陕西仙童科技有限公司 A kind of method of oil-free lubrication Linearkompressor and gas compression
CN108425826A (en) * 2016-07-21 2018-08-21 陕西仙童科技有限公司 A kind of Novel air cylinder piston component and oil-free lubrication method
CN108425827A (en) * 2016-07-21 2018-08-21 陕西仙童科技有限公司 A kind of new type of compression unit and oil-free lubrication Linearkompressor
CN108425827B (en) * 2016-07-21 2020-05-12 陕西仙童科技有限公司 Compression unit and oil-free lubrication linear compressor
CN112097430A (en) * 2020-08-31 2020-12-18 同济大学 Low-noise refrigerator
CN112129012A (en) * 2020-08-31 2020-12-25 同济大学 Closed vibrator, refrigerator and compressor

Also Published As

Publication number Publication date
CN100445556C (en) 2008-12-24
US20060153712A1 (en) 2006-07-13
EP1686264B1 (en) 2008-02-06
DE602005004644T2 (en) 2009-01-29
JP4890841B2 (en) 2012-03-07
EP1686264A1 (en) 2006-08-02
KR20060081481A (en) 2006-07-13
JP2006189038A (en) 2006-07-20
KR100680205B1 (en) 2007-02-08
DE602005004644D1 (en) 2008-03-20

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