CN105332890A - Cylindrical magnetic-suspension permanent magnet linear compressor - Google Patents
Cylindrical magnetic-suspension permanent magnet linear compressor Download PDFInfo
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- CN105332890A CN105332890A CN201510802759.6A CN201510802759A CN105332890A CN 105332890 A CN105332890 A CN 105332890A CN 201510802759 A CN201510802759 A CN 201510802759A CN 105332890 A CN105332890 A CN 105332890A
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Abstract
The invention discloses a cylindrical magnetic-suspension permanent magnet linear compressor which comprises an air cylinder, a piston, a motor rotor and a motor stator iron core. The cylindrical magnetic-suspension permanent magnet linear compressor has the advantages that: firstly, a magnetic bearing is not required in an axial direction; secondly, a motor does not have problems of friction and abrasion; thirdly, load capacity of a required radial suspension magnetic bearing is small; fourthly, efficient and energy-saving advantage is achieved; fifthly, a crankshaft link mechanism and a mechanical transmission system are not required, and the structure is simple; and sixthly, the direction of drive force for a piston is also kept to be consistent with a movement direction of the piston, and therefore, the piston is free of lateral force.
Description
Technical field
The present invention relates to a kind of compressor, particularly relate to a kind of cylinder type magnetic suspension permanent magnet linear compressor for chiller plant, belong to art of refrigeration units.
Background technique
Traditional piston reciprocating compressor is by crank, connecting rod, cylinder, piston, suction valve, the composition such as outlet valve and electric rotating machine, turning motor driving crank linkage mechanism, drives piston to do oscillating rectilinear motion.Due to the frictional loss in crank linkage driving system caused by crank imbalance rotation generation centrifugal inertia force and spin friction loss, reduce compressor efficiency, increase volume and noise, reduce the life-span, and be difficult to realize oil-free lubrication due to it, harmless refrigeration is restricted.
Summary of the invention
Goal of the invention: the invention provides a kind of cylinder type magnetic suspension permanent magnet linear compressor, its objective is that solution linear compressor efficiency is low, noise large, drives the linear motor self of compressor to there is the problem of friction and wear.
Technological scheme: the present invention is achieved by the following technical solutions.
A kind of cylinder type magnetic suspension permanent magnet linear compressor, described linear compressor comprises cylinder, piston, motor mover and motor stator-core; Piston to be arranged in tubular cylinder and can to-and-fro motion in the cylinder, piston is connected with motor mover, motor mover posts annular permanent magnet, and described motor mover is the structure that can relatively move with motor stator-core, is provided with annular armature winding in stator core.Motor mover is by magnetic bearing radial suspension.
Described motor mover is run by magnetic bearing effect radial suspension in movement process.
The two ends of cylinder are provided with suction valve and outlet valve.
Position near cylinder two ends is provided with limit sensors.
Cylinder type magnetic suspension permanent magnet linear motor mover only adopts radial magnetic bearing to suspend.
Annular permanent magnet on cylinder type magnetic suspension permanent magnet linear motor mover and the magnetic pull between ring shaped stator core are cancelled out each other.
Annular permanent magnet uses the annular neodymium-iron-boron permanent excitation of high energy product.
Advantage and effect: in order to solve, piston reciprocating compressor efficiency is in the past low, noise large, drive the linear motor self of compressor to there is the problem of friction and wear.The present invention adopts energy-efficient cylinder type permanent magnet linear motor, with magnetic bearing, mover is suspended, and the friction fundamentally eliminating cylinder type magnetic suspension permanent magnet linear motor self realizes frictionless motion.
The concrete advantage of the present invention is as follows:
1, cylinder type magnetic suspension permanent magnet linear motor mover adopts axial magnetic, and axially without the need to magnetic bearing, this must the feature of axial magnetic suspension distinguish with electric rotating machine.
2, linear motor mover is in magnetic suspension state, and motor self does not exist the problem of friction and wear, and loss is little, and the life-span is long, easily realizes oil-free lubrication.
3, the annular permanent magnet on cylinder type magnetic suspension permanent magnet linear motor mover and the magnetic pull between ring shaped stator core are cancelled out each other, and the capacity of required radial suspension magnetic bearing is little, economical and energy saving, are convenient to install, and are easy to realize magnetic suspension.
4, cylinder type magnetic suspension permanent magnet linear motor uses the annular neodymium-iron-boron permanent excitation of high energy product, has energy-efficient advantage.
5, the motion of cylinder type magnetic suspension permanent magnet linear motor Direct driver piston, do not need connecting rod and machine driven system, structure is simple.
6, the driving force of piston is consistent with its moving direction all the time, and therefore piston is not by lateral forces.
accompanying drawing illustrates:
Fig. 1 is cylinder type magnetic suspension permanent magnet linear compressor arrangement schematic diagram of the present invention;
Number in the figure is described as follows:
1, cylinder; 2, piston; 3, magnetic bearing; 4, motor mover; 5, permanent magnet; 6, motor stator-core; 7, armature winding; 8, suction valve; 9, outlet valve; 10, limit sensors.
embodiment:below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, a kind of cylinder type magnetic suspension permanent magnet linear compressor, described linear compressor comprises cylinder 1, piston 2, motor mover 4 and motor stator-core 6; Piston 2 to be arranged in tubular cylinder 1 and can to-and-fro motion in cylinder 1, piston 2 is connected with motor mover 4, motor mover 4 posts annular permanent magnet 5, described motor mover 4 is the structure that can relatively move with motor stator-core 6, is provided with annular armature winding 7 in stator core 6.Described motor mover 4 acts on radial suspension by magnetic bearing 3 and runs in movement process.
The two ends of cylinder 1 are provided with suction valve 8 and outlet valve 9.Position near cylinder 1 two ends is provided with limit sensors 10.Cylinder type magnetic suspension permanent magnet linear motor mover only adopts radial magnetic bearing to suspend, and axially without the need to magnetic bearing, this is the essential distinction of the necessary axial magnetic suspension with electric rotating machine.
Linear motor mover is in magnetic suspension state, and motor self does not exist the problem of friction and wear, and loss is little, and the life-span is long, easily realizes oil-free lubrication.Annular permanent magnet on cylinder type magnetic suspension permanent magnet linear motor mover and the magnetic pull between ring shaped stator core are cancelled out each other, and the capacity of required radial suspension magnetic bearing is little, economical and energy saving, are convenient to install, and are easy to realize magnetic suspension.Annular permanent magnet 5 uses the annular neodymium-iron-boron permanent excitation of high energy product, has energy-efficient advantage.The motion of cylinder type magnetic suspension permanent magnet linear motor Direct driver piston, does not need connecting rod and machine driven system, and structure is simple, and the driving force of piston is consistent with its moving direction all the time, and therefore piston is not by lateral forces.
When motor mover drives piston to move reciprocatingly, the volume of cylinder 1 side reduces, when the pressure in cylinder 1 be greater than exhaust pressure then outlet valve 9 open, otherwise suction valve 8 is opened, and starts to move round about when described piston 2 runs to limit sensors 10.Described motor mover 4 is run by magnetic bearing 3 radial suspension in movement process.
Cylinder type magnetic suspension permanent magnet linear compressor, comprises cylinder type magnetic suspension permanent magnet linear motor, magnetic bearing, piston, cylinder, suction valve, outlet valve, limit sensors.Described cylinder type magnetic suspension permanent magnet linear motor mainly comprises stator and mover, is provided with annular armature winding, described mover core is provided with annular neodymium-iron-boron permanent in described stator core, can relative movement between mover and stator.Described magnetic bearing is arranged on two ends of cylinder type permanent magnet linear motor, provides the axial magnetic power of permanent-magnet linear motor mover.Described piston and mover are fixedly linked, in the cylinder to-and-fro motion, change moving direction when running into limit sensors.
The piston compressor of linear motor direct drive, owing to there is no connecting rod, there is not rotary motion, the driving force direction of piston remains on same straight line with its moving direction all the time, therefore piston do not have lateral force, can reduce friction and the loss of piston significantly, thus extend the life-span of compressor, overcome the shortcoming of conventional reciprocating formula compressor, make linear compressor compact structure, volume is little, energy consumption is low, efficiency is high.Its friction fundamentally can eliminating cylinder type magnetic suspension permanent magnet linear motor self while realizing Direct driver realizes frictionless motion, reaches object that is efficient, energy-conservation, that abate the noise.
Claims (6)
1. a cylinder type magnetic suspension permanent magnet linear compressor, is characterized in that: described linear compressor comprises cylinder (1), piston (2), motor mover (4) and motor stator-core (6); Piston (2) is arranged on also can in to-and-fro motion in cylinder (1) in tubular cylinder (1), piston (2) is connected with motor mover (4), motor mover (4) posts annular permanent magnet (5), described motor mover (4) is the structure that can relatively move with motor stator-core (6), be provided with annular armature winding (7) in stator core (6), motor mover (4) is by magnetic bearing (3) radial suspension.
2. cylinder type magnetic suspension permanent magnet linear compressor according to claim 1, is characterized in that: the two ends of cylinder (1) are provided with suction valve (8) and outlet valve (9).
3. cylinder type magnetic suspension permanent magnet linear compressor according to claim 1, is characterized in that: the position near cylinder (1) two ends is provided with limit sensors (10).
4. cylinder type magnetic suspension permanent magnet linear compressor according to claim 1, is characterized in that: cylinder type magnetic suspension permanent magnet linear motor mover only adopts radial magnetic bearing to suspend.
5. cylinder type magnetic suspension permanent magnet linear compressor according to claim 1, is characterized in that: the annular permanent magnet on cylinder type magnetic suspension permanent magnet linear motor mover and the magnetic pull between ring shaped stator core are cancelled out each other.
6. cylinder type magnetic suspension permanent magnet linear compressor according to claim 1, is characterized in that: annular permanent magnet (5) uses the annular neodymium-iron-boron permanent excitation of high energy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802759.6A CN105332890A (en) | 2015-11-19 | 2015-11-19 | Cylindrical magnetic-suspension permanent magnet linear compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802759.6A CN105332890A (en) | 2015-11-19 | 2015-11-19 | Cylindrical magnetic-suspension permanent magnet linear compressor |
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| CN105332890A true CN105332890A (en) | 2016-02-17 |
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| CN201510802759.6A Pending CN105332890A (en) | 2015-11-19 | 2015-11-19 | Cylindrical magnetic-suspension permanent magnet linear compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246504A (en) * | 2016-09-12 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor |
| CN106704144A (en) * | 2017-02-28 | 2017-05-24 | 青岛海尔智能技术研发有限公司 | Single-cylinder type linear compressor and control method thereof |
| CN108757460A (en) * | 2018-07-11 | 2018-11-06 | 井冈山大学 | A kind of bearing of permanent magnetism and electromagnetic direct-drive screw compressor |
| 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 |
| CN115013284A (en) * | 2022-01-29 | 2022-09-06 | 北京顿超科技有限公司 | Electromagnetic control device |
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| CN101958672A (en) * | 2009-07-15 | 2011-01-26 | 江苏洛克电气有限公司 | Motor of magnetic suspension refrigeration compressor |
| CN101976989A (en) * | 2010-10-08 | 2011-02-16 | 中南大学 | Active magnetic bearing cylindrical linear motor |
| CN103967739A (en) * | 2014-05-29 | 2014-08-06 | 苏州大学张家港工业技术研究院 | Electromagnetic plunger pump |
| CN205154536U (en) * | 2015-11-19 | 2016-04-13 | 沈阳工业大学 | Drum type magnetic suspension permanent magnetism straight line compressor |
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| CN1138889A (en) * | 1994-11-14 | 1996-12-25 | 安东·施泰格尔 | Device for guiding and centering a machine component |
| US20060127252A1 (en) * | 2004-12-13 | 2006-06-15 | Hamilton Sundstrand Corporation | Reciprocating pump system |
| CN101958672A (en) * | 2009-07-15 | 2011-01-26 | 江苏洛克电气有限公司 | Motor of magnetic suspension refrigeration compressor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246504A (en) * | 2016-09-12 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor |
| WO2018045710A1 (en) * | 2016-09-12 | 2018-03-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor |
| US10876524B2 (en) | 2016-09-12 | 2020-12-29 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Linear compressor |
| CN106704144A (en) * | 2017-02-28 | 2017-05-24 | 青岛海尔智能技术研发有限公司 | Single-cylinder type linear compressor and control method thereof |
| CN108757460A (en) * | 2018-07-11 | 2018-11-06 | 井冈山大学 | A kind of bearing of permanent magnetism and electromagnetic direct-drive screw compressor |
| 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 |
| CN115013284A (en) * | 2022-01-29 | 2022-09-06 | 北京顿超科技有限公司 | Electromagnetic control device |
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Application publication date: 20160217 |
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