CN105332891B - The direct magnetic suspension linear compressor of direct-drive type - Google Patents

The direct magnetic suspension linear compressor of direct-drive type Download PDF

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Publication number
CN105332891B
CN105332891B CN201510802846.1A CN201510802846A CN105332891B CN 105332891 B CN105332891 B CN 105332891B CN 201510802846 A CN201510802846 A CN 201510802846A CN 105332891 B CN105332891 B CN 105332891B
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CN
China
Prior art keywords
direct
motor
core
piston
mover
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Expired - Fee Related
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CN201510802846.1A
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Chinese (zh)
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CN105332891A (en
Inventor
蓝益鹏
陈中成
黄洋洋
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Shenyang University of Technology
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Shenyang University of Technology
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Priority to CN201510802846.1A priority Critical patent/CN105332891B/en
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Publication of CN105332891B publication Critical patent/CN105332891B/en
Expired - Fee Related 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
    • 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
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

A kind of direct magnetic suspension linear compressor of direct-drive type, the compressor mainly include cylinder, piston, stator and mover, and stator is made up of Exciting Windings for Transverse Differential Protection, pole core and stator yoke, and mover is made up of motor mover core and armature winding；It uses caused by Exciting Windings for Transverse Differential Protection caused magnetic pull between magnetic field and mover core mover core is suspended to eliminate the friction of motor itself, reduce abrasion to further extending the compressor life-span, the efficiency of compressor is improved, reduces noise, it is significant to save the energy.

Description

The direct magnetic suspension linear compressor of direct-drive type
Technical field
The present invention relates to a kind of compressor, more particularly to a kind of direct magnetic suspension linear of the direct-drive type for refrigeration plant Compressor, belong to art of refrigeration units.
Background technology
Piston reciprocating compressor is by cylinder, piston, crank, connecting rod, intake valve, the group such as air bleeding valve and electric rotating machine Into electric rotating motivation driving toggle, band piston does oscillating rectilinear motion.Due in crank linkage driving system The uneven rotation of crank produces the frictional dissipation and spin friction loss caused by centrifugal intertia force, reduce compressor efficiency, Volume and noise are increased, reduces the life-span, and because it is difficult to oil-free lubrication, is restricted harmless refrigeration, because And need to develop new highly effective refrigeration compressor.
The direct magnetic suspension linear compressor of direct-drive type, due to no toggle, in the absence of rotary motion, piston Driving force direction moves direction and is maintained on same straight line all the time, therefore does not have the presence of side force on piston, can be with The friction and loss of piston are significantly decreased, so as to extend the life-span of compressor, the shortcomings that overcoming conventional reciprocating formula compressor, is made Compressor arrangement it is compact, small volume, energy consumption are low, efficiency high.Simultaneously as directly magnetic suspension linear motor is in magnetic suspension State, also overcome motor in itself it is existing friction and loss and motor caused by noise, serve " energy-saving and emission-reduction " Effect.
The content of the invention
Goal of the invention：The present invention provides a kind of direct magnetic suspension linear compressor of direct-drive type, past the purpose is to solve piston Reciprocating compressor engine efficiency is low, noise is big, drives the motor itself of compressor the problem of friction and wear to be present.
Technical scheme：The present invention is achieved by the following technical solutions.
A kind of direct magnetic suspension linear compressor of direct-drive type, it is characterised in that：The compressor mainly includes cylinder, work Plug, stator and mover, stator are made up of Exciting Windings for Transverse Differential Protection, pole core and stator yoke, and mover is by motor mover core and armature Winding forms；
Piston is arranged in cylinder and moved back and forth in the cylinder when in use, and piston is connected with piston rod, and piston rod connects Connect motor mover core, the armature winding for producing electromagnetic push is set in motor mover core, motor mover during use Iron core is relatively moved with motor poles iron core, and Exciting Windings for Transverse Differential Protection is set in the pole core,
Motor mover core is in magnetic suspension state under magnetic fields caused by stator excitation winding, at the end of cylinder Portion is provided with intake valve and air bleeding valve.
Piston rod is connected by sliding block with linear guides, and linear guides are fixedly connected with motor mover core.
The position of intake valve and air bleeding valve is provided with limit sensors in cylinder, produced when piston uses in armature winding Moved back and forth in the horizontal direction under raw electromagnetic push effect, change the direction of motion when running into limit sensors (13).
The direct magnetic suspension linear motor magnetic field of direct-drive type is directly adjusted by the electric current in Exciting Windings for Transverse Differential Protection.
Advantage and effect：Conventional piston reciprocating compressor efficiency is low, noise is big in order to solve, and drives the electricity of compressor Itself the problem of friction and wear be present in motivation.The present invention uses the direct magnetic levitaion motor of direct-drive type, with motor itself Magnetic pull makes mover suspend, and frictionless motion is realized in the friction for being inherently eliminated motor itself.
Specific advantage of the invention is as follows：
1st, the direct magnetic suspension linear compressor of direct-drive type, using the direct magnetic levitaion motor of direct-drive type, without magnetic bearing Or electromagnet, the magnetic pull by motor itself make mover suspend, the direct magnetic suspension of mover is realized.
2nd, the direct magnetic suspension of mover is inherently eliminated the friction of motor itself, in the absence of asking for friction and wear Topic, loss is small, long lifespan, easily realizes oil-free lubrication.
3rd, the motion of direct magnetic suspension linear motor direct drive piston, it is not necessary to toggle and machine driving System, it is simple in construction.
3rd, the magnetic field of the direct magnetic suspension linear motor of direct-drive type realizes magnetic field by the current regulation in Exciting Windings for Transverse Differential Protection Directly adjust.
4th, the driving force of piston moves direction and is consistent all the time, therefore piston is not by lateral forces.
Brief description of the drawings：
Fig. 1 is the direct magnetic suspension linear compressor arrangement schematic diagram of direct-drive type of the present invention；
Label is described as follows in figure：
1st, cylinder；2nd, piston；3rd, piston rod；4th, sliding block；5th, linear guides；6th, motor mover core；7th, armature winding； 8th, intake valve；9th, air bleeding valve；10th, Exciting Windings for Transverse Differential Protection；11st, pole core；12nd, motor stator yoke；13rd, limit sensors；14th, it is outer Shell.
Embodiment：The present invention is described further below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of direct magnetic suspension linear compressor of direct-drive type, the compressor mainly includes cylinder 1, piston 2nd, stator and mover, stator are made up of Exciting Windings for Transverse Differential Protection 10, pole core 11 and stator yoke 12, and mover is by motor mover core 6 Formed with armature winding 7；
Piston 2 is arranged in cylinder 1 and moved back and forth when in use in cylinder 1, and piston 2 is connected with piston rod 3, piston Bar 3 connects motor mover core 6, sets the armature winding 7 for producing electromagnetic push in motor mover core 6, electricity during use Motivation mover core 6 is relatively moved with motor poles iron core 11, and Exciting Windings for Transverse Differential Protection 10 is set in the pole core 11.
Motor mover core 6 is in magnetic suspension state under magnetic fields caused by stator excitation winding 10, in cylinder 1 End set have intake valve 8 and air bleeding valve 9.
Piston rod 3 is connected by sliding block 4 with linear guides 5, and linear guides 5 are fixedly connected with motor mover core 6, can root According to the position of hoverheight automatic fine tuning mover.
The position of intake valve 8 and air bleeding valve 9 is provided with limit sensors 13 in cylinder 1, in armature when piston 2 uses Moved back and forth in the horizontal direction under electromagnetic push effect caused by winding 7, change the direction of motion when running into limit sensors 13.
Cylinder, piston, piston rod, sliding block, linear guides, motor mover core, armature winding, intake valve, air bleeding valve, Exciting Windings for Transverse Differential Protection, pole core, motor stator yoke, limit sensors are arranged in shell.
Motor mover core 6 is in magnetic suspension state under magnetic fields caused by Exciting Windings for Transverse Differential Protection 10, is to lean on motor Magnetic pull effect caused by itself is lower directly to suspend, without magnetic bearing or electromagnet.
Direct magnetic suspension linear motor mover is in magnetic suspension state, and asking for friction and wear is not present in motor itself Topic, loss is small, long lifespan, easily realizes oil-free lubrication.
The direct magnetic suspension linear motor magnetic field of direct-drive type is directly adjusted by the electric current in Exciting Windings for Transverse Differential Protection 10, and flux control holds Easily.
The motion of direct magnetic suspension linear motor direct drive piston, it is not necessary to toggle and mechanical drive train System, it is simple in construction, and the driving force of piston moves direction and is consistent all the time, therefore piston is not by lateral forces.
The piston 2 volume of side cylinder 1 in movement reduces, when the pressure in cylinder 1 is then arranged more than pressure at expulsion Air valve 9 is opened, otherwise intake valve 8 is opened, and the piston 2 starts to move round about when running to limit sensors 13, institute State caused by Exciting Windings for Transverse Differential Protection 10 that caused unilateral magnetic force makes the suspension operation of mover core 6 between magnetic field and mover core 6.

Claims (1)

  1. A kind of 1. direct magnetic suspension linear compressor of direct-drive type, it is characterised in that：The compressor mainly includes cylinder（1）, it is living Plug（2）, stator and mover, stator is by Exciting Windings for Transverse Differential Protection（10）, pole core（11）And stator yoke（12）Composition, mover is by motor Mover core（6）And armature winding（7）Composition；
    Piston（2）It is arranged on cylinder（1）It is interior and when in use in cylinder（1）Middle reciprocating motion, piston（2）With piston rod（3）Phase Even, piston rod（3）Connect motor mover core（6）, motor mover core（6）It is interior set produce electromagnetic push armature around Group（7）, motor mover core during use（6）It is unshakable in one's determination with motor poles（11）Relatively move, the pole core（11） Middle setting Exciting Windings for Transverse Differential Protection（10）；
    Motor mover core（6）In stator excitation winding（10）Magnetic suspension state is under caused magnetic fields, in cylinder （1）End set have intake valve（8）And air bleeding valve（9）；
    In cylinder（1）Close to intake valve（8）And air bleeding valve（9）Position be provided with limit sensors (13), piston（2）During use In armature winding（7）Move back and forth under caused electromagnetic push effect, change when running into limit sensors (13) in the horizontal direction The direction of motion；
    The direct magnetic suspension linear motor magnetic field of direct-drive type is by Exciting Windings for Transverse Differential Protection（10）In electric current directly adjust；
    Piston rod（3）By sliding block（4）With linear guides（5）It is connected, linear guides（5）It is fixedly connected with motor mover core （6）.
CN201510802846.1A 2015-11-19 2015-11-19 The direct magnetic suspension linear compressor of direct-drive type Expired - Fee Related CN105332891B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN105332891B true CN105332891B (en) 2018-01-16

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246504B (en) * 2016-09-12 2018-09-28 珠海格力电器股份有限公司 Linear compressor
CN108757374B (en) * 2018-06-05 2019-08-30 华中科技大学 Two-sided permanent magnet straight line motor drive type plunger pump
CN111835176A (en) * 2019-08-04 2020-10-27 熵零技术逻辑工程院集团股份有限公司 Stator-free reciprocating motion motor and engine thereof

Citations (6)

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CN101395788A (en) * 2006-02-28 2009-03-25 Bsh博世和西门子家用器具有限公司 Linear drive with a reduced axial force component, as well as a linear compressor and refrigerator
CN101441919A (en) * 2008-09-08 2009-05-27 杨东平 Method and apparatus for electromagnetic drive of rectilinear movement
CN101586548A (en) * 2009-06-05 2009-11-25 浙江嘉禾管业股份有限公司 Air compressor
CN101860173A (en) * 2010-03-18 2010-10-13 沈阳工业大学 Direct magnetic suspension permanent magnet linear synchronous motor for numerical control feeding platform
CN103929041A (en) * 2014-04-29 2014-07-16 江苏大学 Magnetic levitation permanent magnet linear motor
CN205154535U (en) * 2015-11-19 2016-04-13 沈阳工业大学 Direct magnetic suspension straight line compressor of formula of directly driving

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Publication number Priority date Publication date Assignee Title
DE102006009230A1 (en) * 2006-02-28 2007-08-30 BSH Bosch und Siemens Hausgeräte GmbH Linear compressor operation method involves applying direct current to winding to displace armature from rest position
CN101972933B (en) * 2010-11-19 2012-02-15 沈阳工业大学 Magnetic suspension motion platform of precision heavy machine tool driven by double linear synchronous motors
CN103696934A (en) * 2013-12-20 2014-04-02 安鲁荣 Double-cylinder linear compressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101395788A (en) * 2006-02-28 2009-03-25 Bsh博世和西门子家用器具有限公司 Linear drive with a reduced axial force component, as well as a linear compressor and refrigerator
CN101441919A (en) * 2008-09-08 2009-05-27 杨东平 Method and apparatus for electromagnetic drive of rectilinear movement
CN101586548A (en) * 2009-06-05 2009-11-25 浙江嘉禾管业股份有限公司 Air compressor
CN101860173A (en) * 2010-03-18 2010-10-13 沈阳工业大学 Direct magnetic suspension permanent magnet linear synchronous motor for numerical control feeding platform
CN103929041A (en) * 2014-04-29 2014-07-16 江苏大学 Magnetic levitation permanent magnet linear motor
CN205154535U (en) * 2015-11-19 2016-04-13 沈阳工业大学 Direct magnetic suspension straight line compressor of formula of directly driving

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