CN101789661B - Multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor - Google Patents
Multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor Download PDFInfo
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- CN101789661B CN101789661B CN2009100768782A CN200910076878A CN101789661B CN 101789661 B CN101789661 B CN 101789661B CN 2009100768782 A CN2009100768782 A CN 2009100768782A CN 200910076878 A CN200910076878 A CN 200910076878A CN 101789661 B CN101789661 B CN 101789661B
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Abstract
A kind of multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor, stator component include: that outer surface is positive polyhedral tubular cavity; The magnetic circuit unit being placed on its each outer surface; Magnetic circuit unit includes: that longitudinal section is in
Magnetic conductor among shape,Coiling on its center pillar; Two are placed in the magnetic conductor of intermediate magnetic conductor two sides,Strip air gap is set between intermediate magnetic conductor and magnetic conductor; Mover component includes: the multipair flaky permanent magnet being radially vertically mounted on connector,Flaky permanent magnet is extended on another end connection in slot by being inserted into slot on the connector of tubular cavity one end; Each magnetic circuit unit is between flaky permanent magnet; Intermediate magnetic conductor and magnetic conductor symmetrically magnetize to form symmetrical magnetic circuit in intermediate magnetic conductor length direction,Coil indirect current generates magnetic field,The alternate magnetic field of both forward and reverse directions is formed in strip air gap by symmetrical magnetic circuit,Mover does reciprocating vibration along gas length direction in strip air gap under magnetic fields and moves.
Description
Technical field
What the present invention relates to is the linear electric motors fields.
Background technology
Linear vibration motor is meant the motor of doing the high frequency linear reciprocating motion.A kind of as linear electric motors; The various advantages that it has linear electric motors equally and is had; Directly produce electromagnetic push such as electric energy, directly promote load and do rectilinear motion, not needing traditional electric rotating machine is straight-line conversion equipment with rotational transform; Improve transmission efficiency, reduced mechanical wear etc.So linear vibration motor is because its mover is done reciprocating vibration motion usually as the driving mechanism of equipment such as small-sized reciprocating compressor, sewing machine, electric hammer machine.
Linear vibration motor mainly contains two kinds of classification: linear induction vibration motor and straight line synchronized oscillation motor, and straight line synchronized oscillation motor is less with respect to the loss of linear induction vibration motor, efficient is higher, and good application development prospect is arranged.Straight line synchronized oscillation motor is divided into three kinds of moving-coil type, moving-iron type and moving-magnetic types according to mover form difference.The moving-iron type linear motor mover is made with core material; Magnetic field is then produced by magnet exciting coil; Motor can produce bigger actuating force and compression ratio; But on mover, have very big radial load, this type of is the expensive transition scheme of taking of evading permanent magnetic material as the linear vibration motor early stage of development, is eliminated basically.The moving-coil type linear vibration motor is that mover is made up of coil, and excitation is provided by another coil, is perhaps provided by fixing permanent magnet element; This type of motor advantage is that Stroke Control is easier, does not have radial load and moment of torsion on the mover, and the axial force when not having zero load exists; Do not have magnetic hysteresis loss, but actuating force is less relatively, pin problem is difficult for solving; Directly have influence on the useful life of motor, and because the energy consumption that coil electricity brings, efficient is lower comparatively speaking.The mover of moving-magnetic linear vibration motor is made up of permanent magnetic material, and excitation is still accomplished by coil, and this type of motor is compared with moving-coil type; Can improve 2～3 times of stock utilizations, make motor compact more, the mover quality reduces; Help the design of corresponding resonant springs; Thrust is bigger, and efficient is higher, is obtaining increasing application.
For the moving-magnetic linear vibration motor, the later stage nineties 20th century people such as the Redlich moving-magnetic linear vibration motor of having developed Redlich type structure of the U.S. is used for compressor, and this is a kind ofly on the circumference of magnet exciting coil, permeability magnetic material to be installed; Form the magnetic structure with the concentric cylindrical air gap of magnet exciting coil, the cylindrical permanent-magnet body of radial magnetizing moves reciprocatingly in air gap, passes through the performance test analysis; The linear motor performance of this form is reliable, and efficient is higher, for guaranteeing the even of cylindrical air gap internal magnetic field; The processing and the assembly precision of each parts of motor are had relatively high expectations; Korea S's lg electronics applied it on the refrigerator in 2003, had realized its commercialization, and on this basis through the stator profile of change motor and the geometric parameter of magnet exciting coil; Air-gap field is distributed reach more excellent, and applied for related patent U.S. Patent No..Chemical machinery research institute of Zhejiang University developed a square moving-magnetic linear vibration motor in 2005 as the drive motors of refrigerator with compressor.Sheffield,England university in 2007 has developed a kind of novel single-phase short stroke drum type brake vibration motor of the moving permanent magnet with similar Halbach structure and has tested; Confirm that this structure can strengthen the magnetic density in the air gap, improve the power density of motor.
Along with the novel permanent magnetic Development of Materials, the advantage of moving-magnetic linear vibration motor is also obvious further, makes a general survey of the linear electric motors development; The research and the developing history of moving-magnetic linear vibration motor are shorter; Existing achievement in research is less, and therefore through more deep research, it is higher to develop efficient; Structure is simpler, and the novel electric machine structure of being more convenient for regulating is to guarantee that the moving-magnetic linear vibration motor obtains a vital task of more wide application.
Summary of the invention
What the present invention proposed is a kind of novel multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor, mainly is made up of stator component and mover component.Stator comprises that an outer surface is polygonal tubular cavity and a plurality of magnetic circuit unit, and each magnetic circuit unit is made up of magnetic conductor, air gap and coil, is installed in the cavity outside and is polygonal; Mover is installed on the connector by a plurality of chip permanent magnets and constitutes.The permanent-magnet linear oscillating motor that this invention proposes has simple in structure, easy to make, is beneficial to characteristics such as carrying out Load Regulation.
Technical scheme of the present invention is following:
Multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor provided by the invention is made up of with the mover component that links to each other with load stator component; It is characterized in that said stator component comprises:
One tubular cavity; Said tubular cavity external surface is a regular polygon; The regular polygon size of said tubular cavity external surface interlude is less than the regular polygon size of tubular cavity external surface two ends section;
Place the magnetic circuit unit on said each outer surface of tubular cavity respectively;
Said magnetic circuit unit comprises:
An intermediate magnetic conductor; said intermediate magnetic conductor by multiple pieces were
shape of the sheet made of magnetic material stacked vertical cross-section was
-shaped magnetic conductor; said intermediate conductor in the magnetic field coil winding column;
Two cuboid magnetic conductors that place said intermediate magnetic conductor both sides respectively;
Said intermediate magnetic conductor and between the magnetic conductor of its both sides, leave the strip air gap;
Two sheet first connectors are separately fixed at the two ends of said tubular cavity;
Said sheet first connector is provided with pilot hole and many slots that dispersion shape is arranged that are to parallel placement;
Said mover component comprises:
Many flaky permanent magnet is vertically mounted on one second shape connector radially, two flaky permanent magnets in the every pair of flaky permanent magnet are parallel to each other;
Insert in the slot of said every pair of flaky permanent magnet by first connector of said tubular cavity one end, extend in the slot of first connector of the said tubular cavity other end;
Each magnetic circuit unit of said stator module is between the flaky permanent magnet of every pair of flaky permanent magnet 4 of said mover component;
Two magnetic conductors that place said intermediate magnetic conductor both sides magnetize in the length direction symmetry of said intermediate magnetic conductor 1 and form the symmetrical expression magnetic circuit; Said magnet exciting coil indirect current produces magnetic field; In the strip air gap, form the magnetic field that both forward and reverse directions replaces through the symmetrical expression magnetic circuit, said mover component is done reciprocating vibration along the gas length direction and is moved in the strip air gap under the action of a magnetic field.
Described intermediate magnetic conductor and magnetic conductor are the magnetic conductor that ferrite powder processes, or stack the magnetic conductor that forms for silicon steel sheet.
Said tubular cavity external surface interlude length slightly is wider than the length of magnet exciting coil.
Being connected to of said mover component and load: load is placed in the tubular cavity of said stator component.
Said mover component and load be connected to the external connected mode of tubular cavity that load places said stator component.
Multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of the present invention has following advantage:
1, manufacture craft is simple, through the modularized design of magnetic circuit unit, helps product lot quantity production.
2, the multipath magnetic circuit cellular construction is flexible and changeable, can satisfy the motor different power, various application demands such as overall dimension according to the quantity of practical application needs design alternative motor magnetic circuit unit.
3, Load Regulation is convenient, in motor operation course, can carry out the adjusting of motor output work easily through changing the quantity that comes into operation of magnetic circuit unit.
Description of drawings
Accompanying drawing 1 is multipath magnetic circuit of the present invention unit (three magnetic circuit unit) chip permanent-magnet linear oscillating motor structure and a principle schematic;
Accompanying drawing 2 is multipath magnetic circuit of the present invention unit (six magnetic circuit unit) chip permanent-magnet linear oscillating motor structure and principle schematic;
Accompanying drawing 3 is magnetic structure and principle schematic of each magnetic circuit unit;
Accompanying drawing 5 is structural representations of tubular cavity 5;
Accompanying drawing 6 is structural representations that mover component shows B;
Accompanying drawing 7 is to load on the application example sketch map that moves in the tubular cavity 5 of multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of the present invention.
Embodiment
Said stator component A comprises:
One tubular cavity 5; Said tubular cavity 5 outer surfaces are regular polygon; The regular polygon size of said tubular cavity 5 outer surface interludes is less than the regular polygon size of tubular cavity 5 outer surface two ends sections;
Place the magnetic circuit unit on said tubular cavity 5 each outer surface respectively;
Said magnetic circuit unit comprises:
An intermediate magnetic conductor 1; Said intermediate magnetic conductor 1 is the magnetic conductor of
shape for the longitudinal section; Twine magnet exciting coil 3 on the center pillar of said intermediate magnetic conductor 1;
Two cuboid magnetic conductors 2 that place said intermediate magnetic conductor 1 both sides respectively;
Said intermediate magnetic conductor 1 and between the magnetic conductor 2 of its both sides, leave the strip air gap;
Two sheet first connectors 6 are separately fixed at the two ends of said tubular cavity 5;
Said sheet first connector 6 is provided with pilot hole 7 and many slots 8 that dispersion shape is arranged that are to parallel placement;
Said mover component B comprises:
Many flaky permanent magnet 4 is vertically mounted on one second shape connector 9 radially, two flaky permanent magnets in the every pair of flaky permanent magnet 4 are parallel to each other;
Said every pair of flaky permanent magnet 4 is by inserting in the slot of first connector 6 of said tubular cavity 5 one ends 8, extends in the slot 8 of first connector 6 of said tubular cavity 5 other ends;
Each magnetic circuit unit of said stator module A is between the flaky permanent magnet of every pair of flaky permanent magnet 4 of said mover component B;
Two magnetic conductors 2 that place said intermediate magnetic conductor 1 both sides magnetize in the length direction symmetry of said intermediate magnetic conductor 1 and form the symmetrical expression magnetic circuit; Said magnet exciting coil 3 indirect currents produce magnetic field; In the strip air gap, form the magnetic field that both forward and reverse directions replaces through the symmetrical expression magnetic circuit, said mover component B does reciprocating vibration along the gas length direction and moves in the strip air gap under the action of a magnetic field.
Described intermediate magnetic conductor 1 is the magnetic conductor that ferrite powder processes with magnetic conductor 2, or stacks the magnetic conductor that forms for silicon steel sheet.
Said tubular cavity 5 outer surface interlude length slightly are wider than the length of magnet exciting coil 3.
Being connected to of said mover component B and load: load is placed in the tubular cavity 5 of said stator component.
Said mover component B and load be connected to the outer connected mode of tubular cavity 5 that load places said stator component.
Further describe the present invention through accompanying drawing and embodiment below:
One tubular cavity 5; The outer surface of said tubular cavity 5 is positive trihedral; The positive trihedral size of tubular cavity 5 outer surface interludes is less than the positive trihedral size of tubular cavity 5 outer surface two ends sections;
Place three magnetic circuit unit on tubular cavity 5 outer surfaces;
Each magnetic circuit unit comprises:
An intermediate magnetic conductor 1; Said intermediate magnetic conductor 1 is the magnetic conductor (ferrite powder processes) of
shape for the longitudinal section;
Two cuboid magnetic conductors 2 (ferrite powder processes) that place intermediate magnetic conductor 1 both sides respectively;
Intermediate magnetic conductor 1 and between the magnetic conductor 2 of its both sides, leave the strip air gap;
Twine magnet exciting coil 3 on the center pillar of said intermediate magnetic conductor 1;
Two sheet first connectors 6 are separately fixed at the two ends of said stator module A;
Said sheet first connector 6 is provided with the slot 8 that dispersion shape is arranged that is of pilot hole 7 and three pairs of parallel placements;
Said mover component B comprises:
Three pairs of flaky permanent magnets are vertically mounted on a slice shape second connector 9 radially, and two flaky permanent magnets 4 in the every pair of flaky permanent magnet are parallel to each other;
Every pair of flaky permanent magnet among the said mover component B inserts in the slot 8 of first connector 6 of slot 8 to the other end of first connector 6 of said stator component A one end;
Each magnetic circuit unit of stator module A and every pair of flaky permanent magnet of said mover component B form the closed magnetic loop of a pair of symmetry;
Two magnetic conductors 2 that place said intermediate magnetic conductor 1 both sides magnetize in the length direction symmetry of said intermediate magnetic conductor 1 and form the symmetrical expression magnetic circuit; Said magnet exciting coil 3 indirect currents produce magnetic field; In the strip air gap, form the magnetic field that both forward and reverse directions replaces through the symmetrical expression magnetic circuit, said permanent magnet 4 is done reciprocating vibration along the gas length direction and is moved in the strip air gap under the action of a magnetic field.
Accompanying drawing 2 is multipath magnetic circuit of the present invention unit (six magnetic circuit unit) chip permanent-magnet linear oscillating motor structure and principle schematic; Six magnetic circuit unit chip permanent-magnet linear oscillating motors of present embodiment are made up of stator component A and mover component B;
Said stator component A comprises:
One tubular cavity 5; The outer surface of said tubular cavity 5 is a regular hexahedron; The regular hexahedron size of said tubular cavity 5 outer surface interludes is less than the regular hexahedron size of tubular cavity 5 outer surface two ends sections;
Place six magnetic circuit unit on said tubular cavity 5 outer surfaces;
Each magnetic circuit unit comprises:
An intermediate magnetic conductor 1; said intermediate magnetic conductor 1 by multiple pieces were
shape of the sheet made of magnetic material stacked vertical cross-section was
-shaped magnetic conductor (silicon stacked together);
Two cuboid magnetic conductors 2 (silicon steel sheet stacks and forms) that place said intermediate magnetic conductor 1 both sides respectively;
Said intermediate magnetic conductor 1 and between the magnetic conductor 2 of its both sides, leave the strip air gap;
Twine magnet exciting coil 3 on the center pillar of said intermediate magnetic conductor 1;
Two sheet first connectors 6 are separately fixed at the two ends of said stator module A;
Said sheet first connector 6 is provided with pilot hole 7 and many slots 8 that dispersion shape is arranged that are to parallel placement;
Said mover component B comprises:
Six pairs of flaky permanent magnets are vertically mounted on the one second disc connector 9 radially, and two flaky permanent magnets 4 in the every pair of flaky permanent magnet are parallel to each other;
Every pair of flaky permanent magnet among the said mover component B inserts in the slot 8 of first connector 6 of slot 8 to the other end of first connector 6 of said stator component A one end;
Each magnetic circuit unit of stator module A and every pair of flaky permanent magnet of said mover component B form the closed magnetic loop of a pair of symmetry;
Two magnetic conductors 2 that place said intermediate magnetic conductor 1 both sides magnetize in the length direction symmetry of said intermediate magnetic conductor 1 and form the symmetrical expression magnetic circuit; Said magnet exciting coil 3 indirect currents produce magnetic field; In the strip air gap, form the magnetic field that both forward and reverse directions replaces through the symmetrical expression magnetic circuit, said permanent magnet 4 is done reciprocating vibration along the gas length direction and is moved in the strip air gap under the action of a magnetic field.
Described intermediate magnetic conductor 1 is silicon steel sheet with magnetic conductor 2 and stacks the magnetic conductor that forms, or is ferrite powder, amorphous nano peritectic alloy or the beryllium magnetic conductor that processes of permeability magnetic material such as alloy not.
Said tubular cavity 5 outer surface interlude length slightly are wider than the length of magnet exciting coil 3.
The mover component B and the load connected mode of present embodiment are: shown in the accompanying drawing 7; Load on the tubular cavity 5 interior motions of six magnetic circuit unit chip permanent-magnet linear oscillating motors of present embodiment; Mover component B is with after load 10 is connected; The reciprocating vibration motion is done in load 10 (like the piston of compressor) in tubular cavity 5, this mode has made full use of the inner space of motor, compact conformation;
Certainly, mover component B can also be connected with load through various forms of connectors, loads on the tubular cavity 5 outer motions of motor, and this mode is not limited by electric machine structure, can be applied to the application scenario of various linear vibration motors.
As its name suggests, the multipath magnetic circuit unit in the multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of the present invention can be by 3,4,5 ... wait a plurality of magnetic circuit unit to form.
Claims (6)
1. a multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor is made up of with the mover component that links to each other with load stator component, it is characterized in that,
Said stator component comprises:
One tubular cavity, said tubular cavity external surface is a regular polygon, the regular polygon size of said tubular cavity external surface interlude is less than the regular polygon size of tubular cavity external surface two ends section;
Place the magnetic circuit unit on said each outer surface of tubular cavity respectively, said magnetic circuit unit comprises:
An intermediate magnetic conductor; Said intermediate magnetic conductor stacks the magnetic conductor that the longitudinal section that forms is
shape for the sheet permeability magnetic material that is
shape by multi-disc; Twine magnet exciting coil on the center pillar of said intermediate magnetic conductor
Two cuboid magnetic conductors that place said intermediate magnetic conductor both sides respectively, said intermediate magnetic conductor and between the cuboid magnetic conductor of its both sides, leave the strip air gap;
Two sheet first connectors are separately fixed at the two ends of said tubular cavity, and said sheet first connector is provided with pilot hole and many slots that dispersion shape is arranged that are to parallel placement;
Said mover component comprises:
Many flaky permanent magnet is vertically mounted on the one second circular connector radially; Two flaky permanent magnets in the every pair of flaky permanent magnet are parallel to each other; Insert in the slot of said every pair of flaky permanent magnet by first connector of said tubular cavity one end, extend in the slot of first connector of the said tubular cavity other end;
Wherein, Each magnetic circuit unit of said stator component is between the flaky permanent magnet of every pair of flaky permanent magnet of said mover component; Two cuboid magnetic conductors that place said intermediate magnetic conductor both sides magnetize in the length direction symmetry of said intermediate magnetic conductor and form the symmetrical expression magnetic circuit; Said magnet exciting coil indirect current produces magnetic field; In the strip air gap, form the magnetic field that both forward and reverse directions replaces through the symmetrical expression magnetic circuit, said mover component is done reciprocating vibration along the gas length direction and is moved in the strip air gap under the action of a magnetic field.
2. by the described multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of claim 1, it is characterized in that described intermediate magnetic conductor and cuboid magnetic conductor are that permeability magnetic material processes.
3. by the described multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of claim 2, it is characterized in that described permeability magnetic material is a not alloy of silicon steel sheet, ferrite powder, amorphous nano peritectic alloy or beryllium.
4. by the described multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of claim 1, it is characterized in that said tubular cavity external surface interlude length slightly is wider than the length of magnet exciting coil.
5. by the described multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of claim 1, it is characterized in that being connected to of said mover component and load: load is placed in the tubular cavity of said stator component.
6. by the described multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor of claim 1, it is characterized in that, said mover component and load be connected to the external connected mode of tubular cavity that load places said stator component.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100768782A CN101789661B (en) | 2009-01-23 | 2009-01-23 | Multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100768782A CN101789661B (en) | 2009-01-23 | 2009-01-23 | Multipath magnetic circuit unit lamellar permanent-magnet linear oscillating motor |
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| Publication Number | Publication Date |
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| CN101789661A CN101789661A (en) | 2010-07-28 |
| CN101789661B true CN101789661B (en) | 2012-05-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110212732A (en) * | 2019-06-22 | 2019-09-06 | 杨啟波 | Magnet reciprocating type linear electric generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000228855A (en) * | 1999-02-08 | 2000-08-15 | Sanyo Electric Co Ltd | Moving magnet linear motor |
| WO2005069467A1 (en) * | 2004-01-20 | 2005-07-28 | Kabushiki Kaisha Yaskawa Denki | Core-less linear motor and canned linear motor |
| CN1756053A (en) * | 2004-09-29 | 2006-04-05 | 张玉宝 | Reluctance type linear oscillating motor and its integrative application device and power supply method |
| CN2935613Y (en) * | 2006-08-09 | 2007-08-15 | 浙江大学 | Permanent-magnet linear oscillating motor |
| KR20070082443A (en) * | 2006-02-16 | 2007-08-21 | 세우산전(주) | Linear motor and the manufacturing method |
| CN201378793Y (en) * | 2009-01-23 | 2010-01-06 | 中国科学院理化技术研究所 | Chip permanent magnet linear oscillation motor with multi-magnetic circuit cells |
-
2009
- 2009-01-23 CN CN2009100768782A patent/CN101789661B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000228855A (en) * | 1999-02-08 | 2000-08-15 | Sanyo Electric Co Ltd | Moving magnet linear motor |
| WO2005069467A1 (en) * | 2004-01-20 | 2005-07-28 | Kabushiki Kaisha Yaskawa Denki | Core-less linear motor and canned linear motor |
| CN1756053A (en) * | 2004-09-29 | 2006-04-05 | 张玉宝 | Reluctance type linear oscillating motor and its integrative application device and power supply method |
| KR20070082443A (en) * | 2006-02-16 | 2007-08-21 | 세우산전(주) | Linear motor and the manufacturing method |
| CN2935613Y (en) * | 2006-08-09 | 2007-08-15 | 浙江大学 | Permanent-magnet linear oscillating motor |
| CN201378793Y (en) * | 2009-01-23 | 2010-01-06 | 中国科学院理化技术研究所 | Chip permanent magnet linear oscillation motor with multi-magnetic circuit cells |
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