CN102025253B - Magnetic vibrator - Google Patents
Magnetic vibrator Download PDFInfo
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- CN102025253B CN102025253B CN2009101735470A CN200910173547A CN102025253B CN 102025253 B CN102025253 B CN 102025253B CN 2009101735470 A CN2009101735470 A CN 2009101735470A CN 200910173547 A CN200910173547 A CN 200910173547A CN 102025253 B CN102025253 B CN 102025253B
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Abstract
The present invention discloses a magnetic vibrator, comprising a first magnetic part and a second magnetic part, wherein the first magnetic part comprises an inner plate body, a first magnet and a second magnet, and the inner plate body is clamped between the first magnet and the second magnet; the second magnetic part comprises a coil and a cover body, with the coil encircling the first magnetic part and the cover body covering the coil and having an offset corresponding to the inner plate body. A gap is formed between the first magnetic part and the second magnetic part. When current goes through the coil, the first magnetic part and the second magnetic part relatively move in axial direction.
Description
Technical field
The present invention relates to a kind of magnetic vibrator, but particularly relate to a kind of vertical vibration and can reach the magnetic vibrator of slimming design.
Background technology
Traditional vibrator is mainly consisted of the unbalanced rotor of weight, as No. 5942833rd, United States Patent (USP), see also Figure 1A, this vibrator forms rotor portion by related elements such as coil 12, body 10, fixed parts 9, this rotor is the unbalanced rotors of weight with respect to rotating shaft 8, and by magnet 5, bearing 4a and the related elements such as 4b, brush 7a, forms stationary part.When electric current is communicated to the coil 12 of rotor via brush 7a, the magnetic field that the magnetic field that produces by coil 12 because of electric current and the magnet of stator 5 produce is mutually exclusive, this repels each other tries hard to recommend moving rotor centered by rotating shaft 8 and rotates, because rotor is a unbalanced rotor of weight, therefore when rotor during in rotation, rotor can produce centrifugal force and the vibration of mass unbalance, and vibration force for vibrator, is to be presented on the direction of level.
Yet the vibrator of this kind pattern must motor starting and while rotating to specific rotation speeds, just can experience vibration; Same, after cutting off the electricity supply, because the effect of inertia of rotor, can't shut down immediately and the state that vibrates, still can experience vibration in certain hour after cutting off the electricity supply, therefore, the vibration of this kind vibrator has the phenomenon generation of delay with respect to power supply or vibroseismic signal.In addition, the vibration force of this kind vibrator is to present in the horizontal direction with respect to electronic installation or pcb board, can not provide effective vertical vibration, yet for the user, the vibration on vertical direction is the vibration kenel that comparison can obviously be experienced.
The vibrator of another kind of pattern, can produce the vibration on vertical direction, as No. 6777895th, United States Patent (USP), see also Figure 1B, form vibrating elements by outside yoke 4 and magnet 5, magnet 5 is hollow circular ring shape, its pole orientation is horizontal direction, and Inside coil 2 and inner yoke 3 form stator, after electric current flows through coil 2, the magnetic force that produces produces the relation of repelling each other or inhaling mutually with the magnetic pole of magnet 5, so promotes Inside coil 2 and carries out the vibration of up and down with the stator that inner yoke 3 elements such as grade form.
Yet, this design still has some shortcomings, the vibrating elements that outside yoke 4 and magnet 5 form can produce the up-down vibration of vertical direction, therefore can not contact or this vibrating elements of clamping, must install a lid 7 additional avoids vibrating elements to be touched and harms vibration, so cause the size of body vibration device to be restricted, be unfavorable for the design improved of slimming; In addition, the pole orientation of the magnet 5 of this design hollow ring is horizontal direction,, if size is too little, can be restricted on volume production, is unfavorable for equally the design improved of slimming.
Summary of the invention
The object of the present invention is to provide a kind of magnetic vibrator, but a kind of vertical vibration and can reach the magnetic vibrator of slimming design particularly.
Edge is, for reaching above-mentioned purpose, according to magnetic vibrator of the present invention, comprise one first magnetic section and one second magnetic section, this the first magnetic section comprises an inner plate body, one first magnet and one second magnet, the arrangement that repels each other of this first magnet and this second magnet shaft magnetropism, sandwiched this inner plate body between this first magnet and this second magnet; This second magnetic section comprises a coil and a nappe, this first magnetic section of this coil encircling, and this nappe coats this coil, and has an offset corresponding to this inner plate body; Wherein have gap between this first magnetic section and this second magnetic section, when in this coil, current flowing being arranged, produce axial relative motion between this first magnetic section and this second magnetic section.
Wherein, when in coil, current flowing being arranged, this second magnetic section is stationary state, and this first magnetic section produces axial relative motion with respect to this second magnetic section; Or this first magnetic section is stationary state, and this second magnetic section produces axial relative motion with respect to this first magnetic section.
This first magnetic section more comprises a pair of outer plate body, is arranged at respectively this first magnet and this second magnet opposite side with respect to this inner plate body.This magnetic vibrator more comprises a plurality of elastic components, is arranged at respectively the two ends of the first magnetic section or the second magnetic section, returns back to the active force of initial position when this first magnetic section or the axial relative motion of this second magnetic section to be provided.
The distance in the gap of these the first magnetic section two ends and this second magnetic section is preferably the distance with the gap of this second magnetic section greater than these central authorities of the first magnetic section.This nappe can have respectively an inclined-plane or cambered surface corresponding to these the first magnetic section two ends, and this inclined-plane or this cambered surface ecto-entad tilt towards these central authorities of the first magnetic section; This nappe can have a protuberance that extends to this first magnetic section in these offset both sides.
The distance of the offset of this nappe is greater than the distance of these central authorities of the second magnetic section with the gap of this first magnetic section.
This second magnetic section more comprises a separator, is arranged in this nappe, this coil is separated into two parts, and protrudes among the offset of this nappe.
When the contact-making surface of this first magnet and this second magnet and this inner plate body was the N utmost point, the magnetic line of force that this first magnet and this second magnet produce radially extended to the offset place of this nappe from inside to outside from this inner plate body; When the contact-making surface of this first magnet and this second magnet and this inner plate body was the S utmost point, the magnetic line of force that this first magnet and this second magnet produce radially extended to this inner plate body from the offset place of this nappe ecto-entad.
This nappe is a hollow ring body, and around this first magnetic section, its hollow inside is in order to accommodating this coil, and the axial cross section of this nappe is preferably rectangle, hexagon, polygon, circle, ellipse or irregular shape.
This inner plate body, this nappe, this separator or this outer plate body be preferably a yoke, and this first magnet, this second magnet, this inner plate body or this outer plate body be preferably discoid or the polygon plate-like.The axial height of this second magnetic section greater than, be equal to or less than this axial height of the first magnetic section.
For reaching above-mentioned purpose, according to magnetic vibrator of the present invention, comprise one first magnetic section and one second magnetic section, this the first magnetic section comprises a pair of outer plate body, one first magnet and one second magnet, the arrangement that repels each other of this first magnet and this second magnet shaft magnetropism, this a pair of outer plate body is arranged at respectively the outside of this first magnet and this second magnet, and this first magnet and this second magnetic catch are placed in one; This second magnetic section comprises a coil and a nappe, this first magnetic section of this coil encircling, and this nappe coats this coil, and has an offset corresponding to this inner plate body; Wherein have gap between this first magnetic section and this second magnetic section, when in this coil, current flowing being arranged, produce axial relative motion between this first magnetic section and this second magnetic section.
Description of drawings
Figure 1A and Figure 1B show the schematic diagram of existing vibrator;
Fig. 2 shows the cutaway view of the preferred embodiment of magnetic vibrator of the present invention;
Fig. 3 A and Fig. 3 F show that magnetic vibrator of the present invention possesses the cutaway view of the preferred embodiment of outer plate body;
Fig. 3 B and Fig. 3 C show the first magnet of Fig. 3 A and the magnetic line of force distribution map of the second magnet;
Fig. 3 D and Fig. 3 E show the magnetic line of force distribution map of flowing through Fig. 3 A coil electric current producing; And
Fig. 4-Fig. 9 shows the cutaway view of all the other preferred embodiments of magnetic vibrator of the present invention.
The main element symbol description
211: inner plate body
212: outer plate body
221: the first magnet
222: the second magnet
23: coil
24: nappe
241: inclined-plane
242: protuberance
243: cambered surface
25: elastic component
26: separator
A: axially
R: radially
G: offset
I, I1, I2: gap
M1: the first magnetic section
M2: the second magnetic section
P1～P4: the magnetic line of force
Embodiment
Hereinafter with reference to relevant drawings, according to preferred embodiment of the present invention, wherein identical element will be illustrated with identical reference marks with explanation.
Please refer to Fig. 2, it shows the cutaway view of the preferred embodiment of magnetic vibrator of the present invention, it comprises one first M1 of magnetic section and one second M2 of magnetic section, this first magnetic M1 of section comprises an inner plate body 211, one first magnet 221 and one second magnet 222, the arrangement that repels each other of this first magnet 221 and the second axial a magnetic of magnet 222,222 sandwiched these inner plate bodies 211 of this first magnet 221 and the second magnet, this second magnetic M2 of section comprises a coil 23 and a nappe 24, this coil 23 is around the first M1 of magnetic section, and has a G of the offset corresponding to this inner plate body 211.Wherein have gap S between this first magnetic M1 of section and this second magnetic M2 of section, when in this coil 23, current flowing being arranged, produce axial a relative motion between this first magnetic M1 of section and the second M2 of magnetic section.In the present embodiment, this second magnetic M2 of section is stationary state, this first magnetic M1 of section produces axial a relative motion with respect to this second magnetic M2 of section, but, needing also to make the first M1 of magnetic section depending on actual conditions is stationary state, and makes the second M2 of magnetic section produce axial a relative motion with respect to this first magnetic M1 of section.The present embodiment separately comprises a plurality of elastic components 25, is arranged at respectively the two ends of the first M1 of magnetic section or the second M2 of magnetic section, returns back to the active force of initial position when this first magnetic M1 of section or the axial a relative motion of this second magnetic M2 of section to be provided.
This first magnetic M1 of section can comprise a pair of outer plate body 212, as shown in Figure 3A, is arranged at respectively this first magnet 221 and this second magnet 222 opposite side with respect to this inner plate body 211.
This nappe 24 is preferably a hollow ring body, around this first magnetic M1 of section, its hollow inside is in order to accommodating this coil 23, and the axial cross section of this nappe 24 is preferably rectangle or hexagon, as shown in Fig. 2 and Fig. 3 A, also can be polygon, circle, ellipse or irregular shape.
When the contact-making surface of this first magnet 221 and this second magnet 222 and this inner plate body 211 is the N utmost point, as shown in Figure 3 B, the magnetic line of force P2 that the magnetic line of force P1 that this first magnet 221 produces and this second magnet 222 produce from this inner plate body 211 from inside to outside radially r extend to the G of offset place of this nappe 24, then extend to nappe 24 to two ends, the place of plate body 212 outer rims enters outer plate body 212 outside nappe 24 approaches, magnetic line of force P1, P2 again by outer plate body 212 to central authorities pass the first magnet 221, the second magnet 222 extends to inner plate body 211.
During the flowing through coil of (by top, seeing it) with clockwise when electric current, as shown in Figure 3 D, the magnetic line of force P3 that produces can be in the interior revolution of nappe 24, when rotating magnetic line of force P3 comes middle offset G place by the upper limb of nappe 24, magnetic line of force P3 can turn the lower edge that enters nappe 24 via inner plate body 211, and forms whole loop.At this moment, the offset G of magnetic line of force P3 in the middle of nappe 24 that the magnetic line of force P1 that the first magnet 221 produces and coil 23 electric currents produce meets, produce mutually exclusive strength, with the first magnetic section depress, simultaneously, the offset G of magnetic line of force P3 in the middle of nappe 24 that the magnetic line of force P2 that the second magnet 222 produces and coil 23 electric currents produce meets, and produces the strength of attracting each other, also with the first M1 of magnetic section depress.
In like manner, when electric current during with counterclockwise (by top, seeing it) flowing through coil, as shown in Fig. 3 E, the magnetic line of force P4 that the magnetic line of force P1 that the first magnet 221 produces and coil 23 electric currents produce can produce the strength of attracting each other, the first magnetic section is up pushed away, and the magnetic line of force P4 that the magnetic line of force P2 that the second magnet 222 produces and coil 23 electric currents produce can produce mutually exclusive strength, also the first M1 of magnetic section is up pushed away.
In addition, when the contact-making surface of this first magnet 221 and this second magnet 222 and this inner plate body 211 is the S utmost point, as shown in Figure 3 C, magnetic line of force P1, the P2 that this first magnet 221 and this second magnet 222 produce from the G of offset place of this nappe 24 ecto-entad radially r extend to this inner plate body 211, pass the first magnet 221 to two ends by inner plate body 211, the second magnet 222 enters outer plate body 212, and by the outer rim of outer plate body 212, enter nappe 24, then by two ends, extend to the central offset G of nappe 24 place.To produce between the magnetic line of force relation of inhaling mutually or repelling each other similar to 3B and it is to coil current, at this repeated description no longer.
Thus, the sense of current (clockwise or inverse clock) by change flowing through coil 23, can change the direction of generation magnetic force, thereby change the moving direction of the first M1 of magnetic section; Adjust the switch speed of flowing through coil 23 senses of current, can change the frequency of the first M1 of magnetic section vertical tremor, and change the size of current of flowing through coil 23, can adjust the size of the first M1 of magnetic section vertical tremor strength.
In addition, the distance of the gap I1 of these the first magnetic M1 of section two ends and this second magnetic M2 of section is preferably the distance with the gap I2 of this second magnetic M2 of section greater than this first magnetic M1 of section central authorities, as shown in Fig. 3 F, the distance of the offset G of this nappe 24 is preferably the distance with the gap I2 of this first magnetic M1 of section greater than this second magnetic M2 of section central authorities.
The height of the axial a of this second magnetic M2 of section can, greater than the height of the first axial a of the M1 of magnetic section, as shown in Fig. 2 or Fig. 3 A, can, less than the height of the first axial a of the M1 of magnetic section, as shown in Figure 4, also can equal the height of the first axial a of the M1 of magnetic section.
This nappe 24 can have respectively an inclined-plane 241 corresponding to this first magnetic M1 of section two ends, and as shown in Figure 3A, these inclined-plane 241 ecto-entads tilt towards this first magnetic M1 of section central authorities, and this inclined-plane 241 is also replaceable is a cambered surface 243, as shown in Figure 6.
This nappe 24 can have a protuberance 242 that extends to this first magnetic M1 of section in this offset G both sides, as shown in Figure 5.
This second magnetic M2 of section can further comprise a separator 26, as shown in Figure 9, is arranged in this nappe 24, coil 23 is separated into two parts, and protrudes from the offset G of nappe 24.
The magnetic vibrator of above-mentioned Fig. 3 A is removable this inner plate body 211 also, as shown in Figure 8.
This inner plate body 211, this nappe 24, this separator 26 or this outer plate body 212 be preferably a yoke, and this first magnet 221, this second magnet 222, this inner plate body 211 or this outer plate body 212 be preferably discoid or the polygon plate-like.
In sum, but magnetic vibrator vertical vibration of the present invention for the user, can comparatively significantly be experienced the vibration of electronic installation, and magnetic vibrator of the present invention need not be subject to the restriction of lid, can carry out arbitrarily the thin type design.The magnet that preferred embodiment of the present invention is used is flat, and its pole orientation is vertical direction, and for the circular ring magnet that pole orientation is horizontal direction, production process is comparatively easy.Moreover coil of the present invention when current flowing is arranged, at once just can produce the strength repel each other or to inhale mutually and vibrate with magnet, for the reaction of power supply or vibroseismic signal, is immediately.In addition, the present invention can input different power supplys or vibration signal, produces different vibration kenels, meets therefrom various vibration situation demand.
The foregoing is only illustrative, but not be restricted person.Anyly do not break away from spirit of the present invention and category, and, to its equivalent modifications of carrying out or change, all should comprise in the appended claims.
Claims (30)
1. magnetic vibrator comprises:
The first magnetic section comprises:
Inner plate body;
The first magnet; And
The second magnet, and sandwiched this inner plate body between this first magnet; And
The second magnetic section comprises:
Coil, around this first magnetic section; And
Nappe, coat this coil, and have an offset corresponding to this inner plate body;
Wherein has gap between this first magnetic section and this second magnetic section, when in this coil, current flowing being arranged, produce axial relative motion between this first magnetic section and this second magnetic section, this inner plate body and this nappe are a yoke, the magnetic line of force that this first magnet and this second magnet produce radially extends to this inner plate body from this offset place ecto-entad of this nappe, or this inner plate body radially extends to this offset place of this nappe from inside to outside certainly, and extend to this nappe to two ends
Wherein the offset of the magnetic line of force in the middle of nappe that produce of the magnetic line of force that produces of the first magnet and coil current meets, and the offset of the magnetic line of force that the magnetic line of force that the second magnet produces and coil current produce in the middle of nappe meets,
Wherein said nappe extends and forms the described offset that has corresponding to this inner plate body position along the axial direction of magnetic vibrator.
2. magnetic vibrator as claimed in claim 1, wherein this first magnet and this second magnet shaft magnetropism arrangement that repels each other.
3. magnetic vibrator as claimed in claim 1, wherein when in this coil, current flowing being arranged, this second magnetic section is stationary state, this first magnetic section produces axial relative motion with respect to this second magnetic section; Or this first magnetic section is stationary state, and this second magnetic section produces axial relative motion with respect to this first magnetic section.
4. magnetic vibrator as claimed in claim 1, wherein this first magnetic section also comprises a pair of outer plate body, is arranged at respectively this first magnet and this second magnet opposite side with respect to this inner plate body.
5. as the described magnetic vibrator of claim 1-4 any one, it also comprises a plurality of elastic components, be arranged at respectively the two ends of this first magnetic section or this second magnetic section, return back to the active force of initial position when this first magnetic section or the axial relative motion of this second magnetic section to be provided.
6. as the described magnetic vibrator of claim 1-4 any one, wherein the distance in the gap of these the first magnetic section two ends and this second magnetic section is greater than the distance of these central authorities of the first magnetic section with the gap of this second magnetic section.
7. as the described magnetic vibrator of claim 1-4 any one, wherein this nappe has respectively an inclined-plane or cambered surface corresponding to these the first magnetic section two ends, and this inclined-plane or this cambered surface ecto-entad tilt towards these central authorities of the first magnetic section.
8. as the described magnetic vibrator of claim 1-4 any one, wherein this nappe has respectively a protuberance that extends to this first magnetic section in these offset both sides.
9. as the described magnetic vibrator of claim 1-4 any one, wherein the distance of this offset of this nappe is greater than the distance of these central authorities of the second magnetic section with the gap of this first magnetic section.
10. as the described magnetic vibrator of claim 1-4 any one, wherein this second magnetic section also comprises a separator, is arranged in this nappe, and this coil is separated into two parts, and protrudes among this offset of this nappe.
11. magnetic vibrator as claimed in claim 10, wherein this separator is yoke.
12. as the described magnetic vibrator of claim 1-4 any one, the magnetic line of force that wherein for this first magnet and this second magnet, produces radially extends to the situation at this offset place of this nappe from inside to outside from this inner plate body, the contact-making surface of this first magnet and this second magnet and this inner plate body is the N utmost point.
13. as the described magnetic vibrator of claim 1-4 any one, the magnetic line of force that wherein for this first magnet and this second magnet, produces radially extends to the situation of this inner plate body from this offset place ecto-entad of this nappe, the contact-making surface of this first magnet and this second magnet and this inner plate body is the S utmost point.
14. as the described magnetic vibrator of claim 1-4 any one, wherein this first magnet, this second magnet or this inner plate body are discoid or the polygon plate-like.
15. as the described magnetic vibrator of claim 1-4 any one, wherein this nappe is a hollow ring body, and around this first magnetic section, the axial cross section of this nappe is rectangle, hexagon, circle, ellipse or irregular shape, its inside has a space, in order to accommodating this coil.
16. as the described magnetic vibrator of claim 1-4 any one, wherein this nappe is a hollow ring body, around this first magnetic section, the axial cross section of this nappe is polygon, and its inside has a space, in order to accommodating this coil.
17. as the described magnetic vibrator of claim 1-4 any one, wherein the axial height of this second magnetic section greater than, be equal to or less than this axial height of the first magnetic section.
18. a magnetic vibrator comprises:
The first magnetic section comprises:
The first magnet;
The second magnet; And
A pair of outer plate body, be arranged at respectively the outside of this first magnet and this second magnet, and this first magnet and this second magnetic catch are placed in one; And
The second magnetic section comprises:
Coil, around this first magnetic section; And
Nappe, coat this coil, and have an offset corresponding to these central authorities of the first magnetic section;
Wherein has gap between this first magnetic section and this second magnetic section, when in this coil, current flowing being arranged, produce axial relative motion between this first magnetic section and this second magnetic section, being somebody's turn to do outer plate body and this nappe is a yoke, the magnetic line of force that this first magnet and this second magnet produce enters this nappe from the outer rim of being somebody's turn to do outer plate body, or this nappe outer rim of entering this outer plate body certainly
Wherein the offset of the magnetic line of force in the middle of nappe that produce of the magnetic line of force that produces of the first magnet and coil current meets, and the offset of the magnetic line of force that the magnetic line of force that the second magnet produces and coil current produce in the middle of nappe meets,
Wherein said nappe extends and forms described offset along the axial direction of magnetic vibrator.
19. magnetic vibrator as claimed in claim 18, wherein this first magnet and this second magnet shaft magnetropism arrangement that repels each other.
20. as the described magnetic vibrator of claim 18-19 any one, it also comprises a plurality of elastic components, be arranged at respectively the two ends of this first magnetic section or this second magnetic section, return back to the active force of initial position when this first magnetic section or the axial relative motion of this second magnetic section to be provided.
21. as the described magnetic vibrator of claim 18-19 any one, wherein the distance in the gap of these the first magnetic section two ends and this second magnetic section is greater than the distance of these central authorities of the first magnetic section with the gap of this second magnetic section.
22. as the described magnetic vibrator of claim 18-19 any one, wherein this nappe has respectively an inclined-plane or cambered surface corresponding to these the first magnetic section two ends, this inclined-plane or this cambered surface ecto-entad tilt towards these central authorities of the first magnetic section.
23. as the described magnetic vibrator of claim 18-19 any one, wherein this nappe has respectively a protuberance that extends to this first magnetic section in these offset both sides.
24. as the described magnetic vibrator of claim 18-19 any one, wherein the distance of this offset of this nappe is greater than the distance of these central authorities of the second magnetic section with the gap of this first magnetic section.
25. as the described magnetic vibrator of claim 18-19 any one, wherein this second magnetic section also comprises a separator, is arranged in this nappe, and this coil is separated into two parts, and protrudes among this offset of this nappe.
26. magnetic vibrator as claimed in claim 25, wherein this separator is yoke.
27. as the described magnetic vibrator of claim 18-19 any one, wherein this first magnet, this second magnet or this outer plate body be discoid or the polygon plate-like.
28. as the described magnetic vibrator of claim 18-19 any one, wherein this nappe is a hollow ring body, and around this first magnetic section, the axial cross section of this nappe is rectangle, hexagon, circle, ellipse or irregular shape, its inside has a space, in order to accommodating this coil.
29. as the described magnetic vibrator of claim 18-19 any one, wherein this nappe is a hollow ring body, around this first magnetic section, the axial cross section of this nappe is polygon, and its inside has a space, in order to accommodating this coil.
30. as the described magnetic vibrator of claim 18-19 any one, wherein the axial height of this second magnetic section greater than, be equal to or less than this axial height of the first magnetic section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101735470A CN102025253B (en) | 2009-09-15 | 2009-09-15 | Magnetic vibrator |
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| CN2009101735470A CN102025253B (en) | 2009-09-15 | 2009-09-15 | Magnetic vibrator |
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| CN102025253B true CN102025253B (en) | 2013-11-13 |
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|---|---|---|---|---|
| US4363980A (en) * | 1979-06-05 | 1982-12-14 | Polaroid Corporation | Linear motor |
| EP0580117A2 (en) * | 1992-07-20 | 1994-01-26 | TDK Corporation | Moving magnet-type actuator |
| JP4028606B2 (en) * | 1996-06-07 | 2007-12-26 | 株式会社デルタツーリング | Magnetic levitation type vibration isolation unit with magnetic circuit |
| CN101252305A (en) * | 2007-02-21 | 2008-08-27 | 富士电机系统株式会社 | Vibrating-type motor |
| CN101316065A (en) * | 2008-07-22 | 2008-12-03 | 浙江省东阳市诚基电机有限公司 | Linear vibration motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148066A (en) * | 1991-08-19 | 1992-09-15 | Sunpower, Inc. | Linear generator or motor with integral magnetic spring |
| JP2006296127A (en) * | 2005-04-13 | 2006-10-26 | Alps Electric Co Ltd | Electromagnetic actuator |
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2009
- 2009-09-15 CN CN2009101735470A patent/CN102025253B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4363980A (en) * | 1979-06-05 | 1982-12-14 | Polaroid Corporation | Linear motor |
| EP0580117A2 (en) * | 1992-07-20 | 1994-01-26 | TDK Corporation | Moving magnet-type actuator |
| JP4028606B2 (en) * | 1996-06-07 | 2007-12-26 | 株式会社デルタツーリング | Magnetic levitation type vibration isolation unit with magnetic circuit |
| CN101252305A (en) * | 2007-02-21 | 2008-08-27 | 富士电机系统株式会社 | Vibrating-type motor |
| CN101316065A (en) * | 2008-07-22 | 2008-12-03 | 浙江省东阳市诚基电机有限公司 | Linear vibration motor |
Non-Patent Citations (3)
| Title |
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| JP特开2004-316750A 2004.11.11 |
| JP特开平9-163709A 1997.06.20 |
| JP特许第4028606号B2 2007.12.26 |
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