CN108616205A - A kind of linear motor - Google Patents
A kind of linear motor Download PDFInfo
- Publication number
- CN108616205A CN108616205A CN201810782754.5A CN201810782754A CN108616205A CN 108616205 A CN108616205 A CN 108616205A CN 201810782754 A CN201810782754 A CN 201810782754A CN 108616205 A CN108616205 A CN 108616205A
- Authority
- CN
- China
- Prior art keywords
- coil
- annular yoke
- linear motor
- annular
- support arm
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
Abstract
The invention discloses a kind of linear motors, including coil, permanent magnet, permanent magnetism body support frame, flat spring and annular yoke, at two on the inside of the annular yoke support arm is extended with to axle center respectively, the coil is around in respectively on the support arm, it is fixedly connected respectively with the flat spring outer edge by spring support on two annular end face of the annular yoke, the permanent magnet support vertical is fixedly connected at the center of flat spring respectively across two support arms and by upper and lower ends, the permanent magnet is separately mounted on two sides of the permanent magnetism body support frame；Coil is fully enclosed in annular yoke by the present invention by annular magnet of the setting equipped with support arm, promote its magnetic conduction ability, and electromagnetism is realized in such a way that avris is vertically cut by permanent magnet, cutting area is big, the working efficiency and performance for making linear motor are substantially improved, in addition, present invention annular yoke structure is simple, processing and manufacturing, it is easy to spread.
Description
Technical field
The present invention is to be related to a kind of linear motor, specifically, is related to for the straight of acoustic energy refrigeration machine or sound energy power generation machine
Line electric machine structure.
Background technology
There are mainly three types of types by textural classification for linear motor：Dynamic coil linear motor, moving-iron type linear motor and dynamic magnetic
Formula linear motor.Wherein moving-magnetic type linear motor is because of its compact-sized, mover lighter weight, and specific thrust is larger, and efficiency is higher etc.
Plurality of advantages is widely used.The stationary part of moving-magnetic type linear motor includes yoke, coil and coil rack, and subpart is
Piston, connection component, flat spring, permanent magnet and its holder.Coil generates axial alternating magnetic field after being passed through one-way communication electric current,
The active force for the alternation that permanent magnet is subject in alternating magnetic field and do axial reciprocating linear motion.
Yoke in linear motor is soft magnetic materials, usually electric work pure iron, electric work silicon steel, iron-nickel alloy, ferroaluminium,
Soft magnetic ferrite etc..Yoke connects magnetic source and magnetic loading as magnetic conductive component, plays the important function of conducting magnetic circuit.
Therefore the structure design of yoke is particularly significant in linear motor, and the quality of magnetic conduction ability will directly affect the work of linear motor
Efficiency and performance.
Invention content
In view of the above-mentioned problems existing in the prior art and demand, the object of the present invention is to provide a kind of linear motors, use
The yoke of loop configuration, effectively promotes magnetic property, and the working efficiency and performance of linear motor are significantly promoted because meeting people
Application demand.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of linear motor, including coil, permanent magnet, permanent magnetism body support frame and flat spring, it is characterised in that：It further include annular
Yoke, on the inside of the annular yoke it is same radially two at be extended with support arm to axle center respectively, the coil rotating around
In on the support arm, on the annular end face of two axis side of the annular yoke respectively by equipped with spring support and the plate
Spring outer edge is fixedly connected, and the permanent magnet support vertical passes through the space of the two support arm opposite ends formation and passes through
Upper and lower ends are fixedly connected at the center of the flat spring of its two end side respectively, and two permanent magnets are separately mounted to institute
Permanent magnetism body support frame is stated to correspond on two sides of the coil.
Preferably, the outer diameter φ of the annular yoke is 100mm~140mm, and the anchor ring of the annular yoke is wide
Degree δ is 5mm~25mm, and the axial height h of the annular yoke is 5mm~40m.
As further preferred scheme, the width of the support arm with the anchor ring width δ of the annular yoke be 5mm~
The radical length L of 25mm, the support arm are 10mm~40mm.
Preferably, further include coil rack, the coil rack is equipped with through-hole compatible with the support arm,
The coil is around on the coil rack and is placed on the support arm by the coil rack.
As further preferred scheme, the coil rack both ends are equipped with the plug of outwardly convex, and the coil is wound in
In the recess space that the coil rack outer wall is formed with the plug.
As further preferred scheme, the coil rack is made using the material including ABS plastic through 3D printing.
Preferably, circumference uniform distribution is equipped with several connecting holes on the annular end face of two axis side of the annular yoke,
It is respectively equipped with mounting hole corresponding with the connecting hole on the spring support and the flat spring, the annular yoke,
The spring support is fixedly connected by connecting hole described in bolt-through with the mounting hole with the flat spring, the connecting hole
Deviate the support arm and the annular yoke combination root.
As further preferred scheme, the connecting hole deviates the water of the support arm and the annular yoke combination root
Flat angle α is 20 °~60 °.
Preferably, the outer diameter of the spring support is identical as the annular outer diameter φ of yoke, the spring branch
The internal diameter of frame is determined with according to the molded line of the flat spring, ensures that the spring support does not interfere the deformation of the flat spring.
As further preferred scheme, the spring support is made using aluminum alloy material.
Preferably, upper end, lower end or the upper and lower ends of the permanent magnetism body support frame also respectively with the biography of application apparatus
Motivation structure connects.
As further preferred scheme, the permanent magnetism body support frame is square column structure, in the permanent magnetism body support frame
Portion is symmetrically opened there are two square groove, and the permanent magnet is embedded at respectively in the square groove.
As further preferred scheme, the permanent magnetism body support frame is made using ABS plastic.
Preferably, the permanent magnet is made using Ru-Fe-Mn permanent-magnet material or alnico permanent magnetic material.
Preferably, the annular yoke for being extended with the support arm includes the silicon steel sheet of Multi-stacking compaction setting
Material, by being adhesively fixed between adjacent two layers silicon steel sheet material, the thickness of every layer of silicon steel sheet material is 0.2mm~0.7mm, every layer
The silicon steel sheet material is integral sheet material or including multiple segmentation sheet material, after every layer of silicon steel sheet material is powered with the coil
The line of magnetic induction of formation is arranged in parallel.
Compared with prior art, the present invention has the advantages that：
The present invention is by being annular magnet equipped with optimization yoke structure and making mounting coil in the support of the annular magnet
On arm, coil is fully enclosed in inside the loop configuration of annular yoke, effectively improves the magnetic conduction ability of yoke, meanwhile,
Electromagnetism is realized in such a way that avris is vertically cut by permanent magnet, the cutting area of bigger is obtained, makes the work of linear motor
Make efficiency and performance is substantially improved, in addition, the present invention also has many advantages, such as that annular yoke structure is simple, convenient processing and manufacture, tool
There are apparent progressive and application value.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for linear motor that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of decomposition state schematic diagram for linear motor that the embodiment of the present invention 1 provides；
Fig. 3 is the annular end face structural schematic diagram for the annular yoke that the embodiment of the present invention 1 provides；
Fig. 4 is the B-B sectional views of Fig. 3；
Fig. 5 is the decomposing state knot for the annular yoke that the multilayer integral sheet silicon steel sheet that the embodiment of the present invention 1 provides is constituted
Structure schematic diagram；
Fig. 6 is the decomposing state knot for the annular yoke that the multi-layer segmentation sheet material silicon steel sheet that the embodiment of the present invention 2 provides is constituted
Structure schematic diagram.
Figure label is schematically as follows：1, annular yoke；11, support arm；12, connecting hole；2, spring support；21, mounting hole；
3, permanent magnet；4, permanent magnetism body support frame；41, square groove；42, threaded hole one；43, threaded hole two；5, coil；6, coil rack；7、
Flat spring；8, bolt；9, screw.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with drawings and examples.
Embodiment 1
In conjunction with shown in Fig. 1 to Fig. 5, a kind of linear motor provided in this embodiment, including coil 5, permanent magnet 3, permanent magnet
Holder 4, flat spring 7 and annular yoke 1,1 inside of annular yoke it is same radially two at be extended with respectively to axle center
Support arm 11, the coil 5 are around in respectively on the support arm 11, are divided on the annular end face of 1 liang of axis side of the annular yoke
Not by equipped with spring support 2 be fixedly connected with 7 outer edge of the flat spring, the permanent magnetism body support frame 4 passes perpendicularly through two
11 opposite end of the support arm formed space and by upper and lower ends respectively at the center of the flat spring 7 of its two end side
It is fixedly connected, two permanent magnets 3 are separately mounted to the permanent magnetism body support frame 4 and correspond on two sides of the coil.
In the present embodiment, as shown in Figure 3 and Figure 4, the outer diameter φ of the annular yoke 1 is 100mm~140mm, described
The anchor ring width δ of annular yoke 1 is 5mm~25mm, and the axial height h of the annular yoke 1 is 5mm~40mm, the support
The width of arm 11 is 5mm~25mm with the anchor ring width δ of the annular yoke 1, and the radical length L of the support arm 1 is 10mm
~40mm.
Further include coil rack 6, the line as depicted in figs. 1 and 2 in the present embodiment in view of the fixation of coil 5
Ring framework 6 is equipped with through-hole compatible with the support arm 11, and for better fixed coil 5,6 both ends of the coil rack are set
Outwardly convex plug, the coil 5 are wound in the recess space that the coil rack outer wall is formed with the plug simultaneously
It is sleeved on the support arm 11 by the coil rack 6；The coil rack 6 is using the material including ABS plastic
It is made through 3D printing.
In view of the fixation of annular yoke 1 and flat spring 7, in the present embodiment, as shown in Figure 3 and Figure 4, in the annular
Circumference uniform distribution is equipped with several connecting holes 12 on the annular end face of 1 liang of axis side of yoke, in the spring support 2 and the flat spring 7
On be respectively equipped with mounting hole 21 corresponding with the connecting hole 12, the annular yoke 1, the spring support 2 and the plate
Spring 7 is fixedly connected through the connecting hole 12 with the mounting hole 21 by bolt 8, and the connecting hole 12 deviates the support
Arm 11 is combined root with the annular yoke 1；The connecting hole 12 deviates the support arm 11 and is combined root with the annular yoke 1
The horizontal sextant angle α in portion is 20 °~60 °.Find that it is existing easily to occur magnetic saturation at the root A of support arm 11 by finite element analysis
As, that is to say, that the magnetic flux density of annular yoke 1 is larger at A, if opening up connecting hole 12 here, magnetic circuit can be significantly increased
Magnetic resistance, be unfavorable for magnetic circuit conducting, and then the working efficiency of linear motor can be influenced, thus to be avoided when opening up connecting hole 12
At the larger A of magnetic flux density.
In view of 7 adaptations of spring support 2 and flat spring, in the present embodiment, as depicted in figs. 1 and 2, the spring branch
The outer diameter of frame 2 is identical as the outer diameter φ of the annular yoke 1, the internal diameter of the spring support 2 and the type according to the flat spring 7
Line determines, ensures that the spring support 2 does not interfere the deformation of the flat spring 7；The spring support uses aluminum alloy material
It is made.
In order to preferably realize the transmission with application apparatus, in the present embodiment, as shown in Figure 1 and Figure 2, the permanent magnet
Threaded hole 1 and threaded hole 2 43 are respectively equipped in the upper and lower ends face of holder 4, the threaded hole 1 is used to set with application
Standby piston (not indicated in figure) connection, 4 upper end of permanent magnetism body support frame, the flat spring 7 and the piston are connected to
Together, the threaded hole 2 43 by equipped with screw 9 flat spring 7 and 4 lower end of permanent magnetism body support frame is closely solid
Fixed connection.
In view of the fixation of permanent magnet, in the present embodiment, as depicted in figs. 1 and 2, the permanent magnetism body support frame 4 is rectangular
Column structure is symmetrically opened at the middle part of the permanent magnetism body support frame 4 there are two square groove 41, and the permanent magnet 3 is embedded at respectively
In the square groove 41；The permanent magnetism body support frame 4 is made using ABS plastic；The permanent magnet 3 using Ru-Fe-Mn permanent-magnet material or
Alnico permanent magnetic material is made.
For the eddy-current loss being further reduced in annular yoke 1, in the present embodiment, as shown in figure 5, being extended with described
The annular yoke 1 of support arm 11 includes the silicon steel sheet material of Multi-stacking compaction setting, by viscous between adjacent two layers silicon steel sheet material
Knot is fixed, and the thickness of every layer of silicon steel sheet material is 0.2mm~0.7mm, and every layer of silicon steel sheet material is integral sheet material, every layer
The line of magnetic induction that the silicon steel sheet material is formed after being powered with the coil 5 is arranged in parallel.
Embodiment 2
In conjunction with shown in Fig. 6, a kind of linear motor provided in this embodiment, with the difference is that only for embodiment 1：It is described
Coil rack both ends perpendicular to the plug for being axially arranged with outwardly convex, the coil be wound in the coil rack outer wall with it is described
In the recess space that plug is formed, circumference uniform distribution is equipped with 4 connecting holes on the annular end face of 1 liang of axis side of the annular yoke
12, it is 45 ° that the connecting hole, which deviates the support arm with the horizontal sextant angle α of the annular yoke combination root, is extended with described
The annular yoke 1 of support arm 11 includes the silicon steel sheet material of Multi-stacking compaction setting, by viscous between adjacent two layers silicon steel sheet material
Knot is fixed, and the thickness of every layer of silicon steel sheet material is 0.2mm~0.7mm, and every layer of silicon steel sheet material is 4 and is with connecting hole 12
What the segmentation sheet material on boundary was formed carries joint-cutting sheet material, and the line of magnetic induction that every layer of joint-cutting sheet material is formed after being powered with the coil 5 is flat
Row setting.
Since yoke is both magnetizer and electric conductor in linear motor, when it is in alternating magnetic field, in yoke
The induced current being voluntarily closed is will produce, is as vortexed, vortex generates joule thermal losses in yoke, is called eddy-current loss.By
In the resistance very little of yoke, therefore the vortex generated is very big.If annular yoke 1 of the present invention is monoblock, their electricity
Very little is hindered, vortex is very big, and the Joule heat being lost because of vortex is with regard to very much.Structural advantages using silicon steel sheet closed assembly are, phase
Annular yoke 1 than being formed in the mode of whole annular yoke 1, silicon steel sheet closed assembly can effectively reduce its internal vortex
Loss.In order to reduce eddy current loss, annular yoke 1 of the present invention may be used silicon steel sheet or other soft magnetism sheet materials make and
The line of magnetic induction formed after being powered at, every layer of silicon steel sheet material or other soft magnetism sheet materials and the coil 5 is parallel, thus
Vortex, which is limited in, to be constituted within 1 each sheet material of the annular yoke, so that vortex is greatly reduced, so as to reduce the vortex of linear motor
Loss improves electric efficiency.
It is visible in summary：By being equipped with, optimization yoke structure is annular magnet 1 to the present invention and so that coil 5 is sleeved on described
On the support arm of annular magnet 1, coil 5 is fully enclosed in inside the loop configuration of annular yoke 1, effectively improves yoke
Magnetic conduction ability, meanwhile, realize electromagnetism in such a way that avris is vertically cut by permanent magnet 3, obtain the cut surface of bigger
Product, also by the way that annular yoke 1 to be laminated to the setting form of composition using the tangent line that multilayer silicon steel sheet or silicon steel sheet cutting sheet form,
Reduce eddy current loss, the working efficiency of linear motor and performance is made to be substantially improved, in addition, annular 1 knot of yoke of the present invention
Structure is simple, convenient processing and manufacture.
It is last it is necessarily pointed out that：The foregoing is merely the preferable specific implementation mode of the present invention, but the present invention
Protection domain be not limited thereto, any one skilled in the art in the technical scope disclosed by the present invention,
The change or replacement that can be readily occurred in, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of linear motor, including coil, permanent magnet, permanent magnetism body support frame and flat spring, it is characterised in that：It further include ring-shaped yoke
Iron, on the inside of the annular yoke it is same radially two at be extended with support arm to axle center respectively, the coil is around in respectively
On the support arm, on the annular end face of the annular two axis side of yoke respectively by equipped with spring support and the plate bullet
Spring outer edge is fixedly connected, and the permanent magnet support vertical passes through the space of the two support arm opposite ends formation and by upper
Lower both ends are fixedly connected at the center of the flat spring of its two end side respectively, and two permanent magnets are separately mounted to described
Permanent magnetism body support frame corresponds on two sides of the coil.
2. linear motor according to claim 1, it is characterised in that：It is described annular yoke outer diameter φ be 100mm~
The anchor ring width δ of 140mm, the annular yoke are 5mm~25mm, and the axial height h of the annular yoke is 5mm~40m, institute
The anchor ring width δ that the width of support arm is stated with the annular yoke is 5mm~25mm, and the radical length L of the support arm is
10mm~40mm.
3. linear motor according to claim 1, it is characterised in that：Further include coil rack, the coil rack is equipped with
Through-hole compatible with the support arm, the coil are around on the coil rack and are placed in by the coil rack described
On support arm.
4. linear motor according to claim 3, it is characterised in that：The coil rack both ends are equipped with the stifled of outwardly convex
Head, the coil are wound in the recess space that the coil rack outer wall is formed with the plug.
5. linear motor according to claim 1, it is characterised in that：On the annular end face of two axis side of the annular yoke
Circumference uniform distribution is equipped with several connecting holes, is respectively equipped on the spring support and the flat spring corresponding with the connecting hole
Mounting hole, the annular yoke, the spring support and the flat spring pass through connecting hole described in bolt-through and described solid
Determine hole to be fixedly connected, the connecting hole deviates the support arm and with the annular yoke combination root is arranged.
6. linear motor according to claim 5, it is characterised in that：The connecting hole deviates the support arm and the ring
The horizontal sextant angle α of shape yoke combination root is 20 °~60 °.
7. linear motor according to claim 1, it is characterised in that：The outer diameter of the spring support and the annular yoke
Outer diameter φ it is identical, the internal diameter of the spring support is determined with according to the molded line of the flat spring.
8. linear motor according to claim 1, it is characterised in that：The permanent magnetism body support frame is square column structure,
The middle part of the permanent magnetism body support frame is symmetrically opened there are two square groove, and the permanent magnet is embedded at respectively in the square groove；Institute
The upper end, lower end or upper and lower ends for stating permanent magnetism body support frame are also connect with the transmission mechanism of application apparatus respectively.
9. according to the linear motor described in claim 1-8 any claims, it is characterised in that：It is extended with the support arm
The annular yoke includes the silicon steel sheet material of Multi-stacking compaction setting, by being adhesively fixed between adjacent two layers silicon steel sheet material, every layer
The thickness of the silicon steel sheet material is 0.2mm~0.7mm, and every layer of silicon steel sheet material is integral sheet material or including multiple segmentations
Sheet material, the line of magnetic induction that every layer of silicon steel sheet material is formed after being powered with the coil are arranged in parallel.
10. linear motor according to claim 9, it is characterised in that：The coil rack uses including ABS plastic
Material be made through 3D printing, or/and the spring support is made using aluminum alloy material, or/and the permanent magnetism body support frame adopts
It is made with ABS plastic, or/and the permanent magnet is made using Ru-Fe-Mn permanent-magnet material or alnico permanent magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782754.5A CN108616205A (en) | 2018-07-17 | 2018-07-17 | A kind of linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782754.5A CN108616205A (en) | 2018-07-17 | 2018-07-17 | A kind of linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108616205A true CN108616205A (en) | 2018-10-02 |
Family
ID=63666399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810782754.5A Pending CN108616205A (en) | 2018-07-17 | 2018-07-17 | A kind of linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108616205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639086A (en) * | 2018-12-24 | 2019-04-16 | 南京航空航天大学 | The voice coil motor of induction power supply |
| CN112576667A (en) * | 2020-11-06 | 2021-03-30 | 兰州空间技术物理研究所 | C-shaped spring support box of linear reciprocating motion part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01160342A (en) * | 1987-12-15 | 1989-06-23 | Akira Yamamura | Dc linear motor |
| CN1586031A (en) * | 2002-06-26 | 2005-02-23 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| CN101621244A (en) * | 2009-08-14 | 2010-01-06 | 华中科技大学 | Moving-magnetic type linear motor |
| JP2017204988A (en) * | 2016-05-13 | 2017-11-16 | 住友理工株式会社 | Electromagnetic actuator and active vibration damping device and active anti-vibration device |
| CN208571884U (en) * | 2018-07-17 | 2019-03-01 | 杨厚成 | A kind of linear motor |
-
2018
- 2018-07-17 CN CN201810782754.5A patent/CN108616205A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01160342A (en) * | 1987-12-15 | 1989-06-23 | Akira Yamamura | Dc linear motor |
| CN1586031A (en) * | 2002-06-26 | 2005-02-23 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| CN101621244A (en) * | 2009-08-14 | 2010-01-06 | 华中科技大学 | Moving-magnetic type linear motor |
| JP2017204988A (en) * | 2016-05-13 | 2017-11-16 | 住友理工株式会社 | Electromagnetic actuator and active vibration damping device and active anti-vibration device |
| CN208571884U (en) * | 2018-07-17 | 2019-03-01 | 杨厚成 | A kind of linear motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639086A (en) * | 2018-12-24 | 2019-04-16 | 南京航空航天大学 | The voice coil motor of induction power supply |
| CN112576667A (en) * | 2020-11-06 | 2021-03-30 | 兰州空间技术物理研究所 | C-shaped spring support box of linear reciprocating motion part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101107770B (en) | Improved tubular electrical generators | |
| TWI400858B (en) | Rotor-stator structure for electrodynamic machines | |
| US20070108850A1 (en) | Linear electrical machine for electric power generation or motive drive | |
| CN102042327B (en) | Low-power consumption large-bearing capacity permanent-magnet bias mixed radial magnetic bearing | |
| BRPI0416116A (en) | polyphase axial air gap dynamoelectric machine, and method for constructing a dynamoelectric dinamoelectric machine | |
| CN108616205A (en) | A kind of linear motor | |
| CN104967276A (en) | Liquid-cooling iron-coreless permanent-magnet linear motor | |
| CN208571884U (en) | A kind of linear motor | |
| CN107959367A (en) | A kind of bimorph transducer composite excitation eddy current damping device | |
| CN107681868A (en) | Efficient high starting torque desk permanent-magnet eddy-current coupling | |
| CN108183593A (en) | uniform parallel magnetic field type voice coil motor | |
| CN201925346U (en) | Permanent magnet biased radial hybrid magnetic bearing with low power consumption and large bearing capacity | |
| CN101841223B (en) | Armature of canned linear motor and canned linear motor | |
| CN109302023A (en) | The huge active force motor of high power torque highfield energy density permanent magnetism | |
| CN205725399U (en) | Permanent magnetic Reciprocative straight line motor | |
| US6927506B2 (en) | Low loss reciprocating electromagnetic device | |
| CN102064659A (en) | Manufacturing method and device of cylindrical linear motor | |
| CN208226689U (en) | A kind of stator core of novel permanent-magnet motor | |
| CN102013783B (en) | Light direct current (DC) linear motor | |
| CN212392798U (en) | Power device of permanent magnet and electromagnetic continuous pulling/pushing transmission structure | |
| CN210669845U (en) | Bipolar multi-winding permanent magnet power generation device body | |
| CN210041487U (en) | Stator coil of permanent magnet generator | |
| WO2006047499A2 (en) | Rotor-stator structure for electrodynamic machines | |
| CN208820554U (en) | Rotor magnetic-conduction plate and SMC are without yoke type motor in axial magnetic field | |
| KR20220138310A (en) | Stator assembly and center plate shaft core double rotor motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |