CN103095089B - A kind of Novel superparamagnetic electromagnetic actuator - Google Patents
A kind of Novel superparamagnetic electromagnetic actuator Download PDFInfo
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- CN103095089B CN103095089B CN201310002159.2A CN201310002159A CN103095089B CN 103095089 B CN103095089 B CN 103095089B CN 201310002159 A CN201310002159 A CN 201310002159A CN 103095089 B CN103095089 B CN 103095089B
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- end cap
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- energized solenoids
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Abstract
The invention provides a kind of Novel superparamagnetic electromagnetic actuator, comprise energized solenoids, magnetic test coil, coil support sleeve, sleeve end cap, ferromagnetic drop driver module, postive stop baffle and loop sleeve, coil support sleeve is as the bracing frame of coil around the home, its left and right is each evenly has 1 energized solenoids around the home, on each energized solenoids, there is 1 magnetic test coil respectively around the home, coil support sleeve two ends are all provided with 1 sleeve end cap, sleeve end cap central has 1 centre bore, ferromagnetic drop driver module structure is that centre has 1 baton round or glass marble being full of ferrofluid, two ends respectively have 1 stock to be connected on astrosphere, two stock conllinear, stock two ends are stretched out outside sleeve respectively by the centre bore at coil support sleeve two ends, each stock leading portion all has one and begins to crop up, 2 postive stop baffles respectively symmetry are arranged on 2 stocks.The present invention can control the displacement of driver and actuating force.
Description
Technical field
The present invention relates to a kind of novel electromagnetic driver, by giving 2 energized solenoids energisings, making to be inserted in ferromagnetic drop driver module in its centre bore can direction, the axis both sides motion in centrally hole, and can detect that current ferromagnetic drop module departs from displacement and the power of initial position by magnetic test coil simultaneously, be specifically related to a kind of Novel superparamagnetic electromagnetic actuator.
Background technology
Along with the fast development of micro-nano science and technology, in the fields such as MEMS (micro electro mechanical system), bioengineering, molecular atoms operation, in the urgent need to having the micromotion system of high performance accuracy.
Tradition microdrive principal mode has the driving of Piezoelectric Driving, marmem, electrostatic driving and Electromagnetic Drive etc.And Piezoelectric Driving, marmem drive and electrostatic driving etc. all can not meet the range of movement of microdrive, kinematic accuracy and motor imagination parameter simultaneously.And traditional Electromagnetic Drive is owing to generally having magnetic core, volume, quality are large, and inertia is large, and under same thrust, the response time is slow, can not meet the requirement performed fast.And most of microdrive does not possess the synchronous measuring ability of position and power, can not the precision of control and drive system exactly.
And ferromagnetic drop be a kind of superparamagnetism nano particle surfactant coated under be stably suspended in stable suspension in carrier fluid, there is the characteristic of superparamagnetism and fluid, can be molded in the container of any shape.The ferromagnetic drop of magnetic core in traditional electrical magnetic driven device is substituted, magnetic core mass and bulky problem can be eliminated.And add at excitation coil the precision that two magnetic test coils can increase driver outward again, realize high accuracy and control.
Summary of the invention
For defect of the prior art, the object of the invention is to substitute conventional cores in order to improve the implementation capacity of driver with ferromagnetic drop.
The present invention can measure the method that current drive departs from the Distance geometry actuating force of initial position, in order to the precision of control and drive system; The present invention be again a kind of can the electromagnetic driver of bilateral movement, driver can be made after being finished to get back to initial position.Activation configuration provided by the invention is simple, be easy to manufacture.
According to an aspect of the present invention, a kind of Novel superparamagnetic electromagnetic actuator is provided, comprise the first magnetic test coil, second magnetic test coil, first energized solenoids, second energized solenoids, coil support sleeve, first sleeve end cap, second sleeve end cap, ferromagnetic drop driver module, begin to crop up, postive stop baffle, wherein: coil support sleeve is as the bracing frame of coil around the home, on the position dividing sleeve axis equally, left and right is each evenly has the first energized solenoids and the second energized solenoids around the home, first energized solenoids there is the first magnetic test coil around the home, second energized solenoids there is the second magnetic test coil around the home, first magnetic test coil and the second magnetic test coil are position transducer, in order to detect the position of ferromagnetic drop driver module, first energized solenoids and the second energized solenoids are used for passing into the sinusoidal excitation signal with different DC biased respectively, coil support sleeve two ends are separately installed with the first sleeve end cap and the second sleeve end cap, the center of the first sleeve end cap and the second sleeve end cap all has a centre bore, ferromagnetic drop driver module is installed on coil support sleeve by two centre bores, and can along axis direction two lateral movement of centre bore, ferromagnetic drop driver module comprises the astrosphere being full of ferromagnetic drop, and two of conllinear stocks, it is outside that the centre bore that two stocks are each passed through the first sleeve end cap and the second sleeve end cap from astrosphere extends to coil support sleeve, the outer end of stock is stamped and is begun to crop up, two postive stop baffles respectively symmetry are arranged on two stocks.
Preferably, described astrosphere is baton round or glass marble.
Preferably, stock is made up of glass or rubber.
Preferably, begin to crop up and to be made up of rubber or metal.
When the present invention works, ferromagnetic drop driver module is at initial center position, at 2 excitation hold-in winding C, when there is the sinusoidal excitation signal of direct current biasing on D leads to respectively, direct current biasing makes solenoid inside produce gradient magnetic, this magnetic field is that the vector of 2 excitation hold-in windings adds up magnetic field, move in order to drive ferromagnetic drop glass marble, thus drive the movement of whole ferromagnetic drop driver module, control the difference with the sinusoidal excitation signal of direct current biasing added in 2 excitation hold-in windings, this magnetic signature is made to be that magnetic force that ferromagnetic drop driver module is subject at center initial position is large, and the magnetic force be subject to when departing from initial position reduces gradually.This characteristic can make the initial brief acceleration of driver large, meets and responds requirement fast, and makes the magnetic force that is subject in driving process little, avoids the object of destruction.When drive operation is complete, can be inverted 2 the signal encouraged on hold-in winding C, D, makes driver backhaul, and magnetic test coil and excitation hold-in winding form a differential transformer, in order to detect the side-play amount of ferromagnetic drop driver module and solenoid central point, and then carry out closed-loop control.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structure diagram of whole device.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
As shown in Figure 1, in the present embodiment, described Novel superparamagnetic electromagnetic actuator comprises: the first energized solenoids 3 and the second energized solenoids 4, first magnetic test coil 1 and the second magnetic test coil 2, coil support sleeve 5, first sleeve end cap 6 and the second sleeve end cap 7, ferromagnetic drop driver module 8, ferromagnetic drop driver module 8 comprises the astrosphere 9 being full of ferromagnetic drop, begin to crop up 10 and the postive stop baffle 11 at stock two ends, its annexation is: coil support sleeve 5 is as the bracing frame of coil around the home, on the position dividing sleeve axis equally, left and right is each evenly has the first energized solenoids 3 and the second energized solenoids 4 around the home, first energized solenoids 3 has the first magnetic test coil 1 around the home, second energized solenoids 4 has the second magnetic test coil 2 around the home, coil support sleeve 5 two ends are separately installed with the first sleeve end cap 6 and the second sleeve end cap 7, the center of the first sleeve end cap 6 and the second sleeve end cap 7 all has a centre bore, make ferromagnetic drop driver module 8 can along axis direction two lateral movement of centre bore, ferromagnetic drop driver module 8 structure is that centre has an astrosphere 9 being full of ferrofluid, bead is baton round or glass marble, two ends respectively have a stock to be connected on astrosphere 9, stock can be made up of the light material such as glass or rubber, in order to reduce the quality of ferromagnetic drop driver module 8, be specifically fixed with practical situations, two stock conllinear, a part for each stock is in coil stop sleeve 5, another part is outside it, stock two ends are stretched out outside sleeve respectively by the centre bore at coil support sleeve 5 two ends, each stock leading portion all has one and begins to crop up 10, different according to service condition, different materials can be adopted, as rubber, metal etc., cover on stock by welding or press mode, 2 postive stop baffles 11 respectively symmetry are arranged on 2 stocks.
Described first magnetic test coil 1 and the second magnetic test coil 2 are position transducer, are divided into A, B two, in order to detect the position of ferromagnetic drop driver module 8.
The first described energized solenoids 3 and the second energized solenoids 4 are magnetic drive portion, be divided into C, D two, pass into the sinusoidal excitation signal with different DC biased respectively, direct current biasing makes solenoid inside produce gradient magnetic, first energized solenoids 3 and the second energized solenoids 4 internal magnetic field vector superposed, a complicated field regions is caused in coil stop sleeve 5, ferromagnetic drop driver module 8 can be made to move to a certain side by regulating the direct current biasing of the first energized solenoids 3 and the second energized solenoids 4, and can the size of driving force.
Described ferromagnetic drop driver module 8 is the middle astrosphere 9 having to be baton round or glass marble, two ends are respectively with the long rod type module of a symmetrical stock, for being evenly full of ferrofluid in the astrosphere 9 of baton round or glass marble in the middle of it, its essence is an iron core of a differential transformer sensor.
Described first sleeve end cap 6 and the second sleeve end cap 7 respectively have a centre bore, with coil support sleeve 5 and stock coaxial, in order to place ferromagnetic drop driver module 8.
Described postive stop baffle 11 is for limiting the distance of ferromagnetic drop driver module 8 movement, in order to avoid ferromagnetic drop driver module 8 surpasses overdrive range and causes driving inaccuracy.
When the present invention works, the sinusoidal excitation signal of direct current biasing on first energized solenoids 3 and the second energized solenoids 4 are led to respectively, magnetic field is produced in solenoid, the ferromagnetic drop centered ball 9 of this field drives moves, the magnetic force that this magnetic field makes ferromagnetic drop driver module 8 be subject at initial position is large, and the magnetic force be subject to when departing from initial position reduces gradually.This characteristic can make the initial brief acceleration of driver large, meets and responds requirement fast, and makes the magnetic force that is subject in driving process little, avoids the object of destruction.When drive operation is complete, the signal that can be inverted in the first energized solenoids 3 and the second energized solenoids 4, make the backhaul of ferromagnetic drop driver module 8, first magnetic test coil 1 and the second magnetic test coil 2 and the first energized solenoids 3 and the second energized solenoids 4 form a differential transformer, in order to detect the side-play amount of ferromagnetic drop driver module 8 and solenoid central point, and then carry out closed-loop control.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (4)
1. a Novel superparamagnetic electromagnetic actuator, it is characterized in that, comprise the first magnetic test coil (1), second magnetic test coil (2), first energized solenoids (3), second energized solenoids (4), coil support sleeve (5), first sleeve end cap (6), second sleeve end cap (7), ferromagnetic drop driver module (8), begin to crop up (10), postive stop baffle (11), wherein: coil support sleeve (5) is as the bracing frame of coil around the home, on the position dividing sleeve axis equally, left and right is each evenly has the first energized solenoids (3) and the second energized solenoids (4) around the home, first energized solenoids (3) has the first magnetic test coil (1) around the home, second energized solenoids (4) has the second magnetic test coil (2) around the home, first magnetic test coil (1) and the second magnetic test coil (2) are position transducer, in order to detect the position of ferromagnetic drop driver module (8), first energized solenoids (3) and the second energized solenoids (4) are for passing into the sinusoidal excitation signal with different DC biased respectively, to produce gradient magnetic, coil support sleeve (5) two ends are separately installed with the first sleeve end cap (6) and the second sleeve end cap (7), first sleeve end cap (6) all has a centre bore with the center of the second sleeve end cap (7), ferromagnetic drop driver module (8) is installed on coil support sleeve (5) by two centre bores, and can along axis direction two lateral movement of centre bore, ferromagnetic drop driver module (8) comprises the astrosphere (9) being full of ferromagnetic drop, and two of conllinear stocks, it is outside that the centre bore that two stocks are each passed through the first sleeve end cap (6) and the second sleeve end cap (7) from astrosphere (9) extends to coil support sleeve (5), the outer end of stock is stamped begin to crop up (10), two postive stop baffles (11) respectively symmetry are arranged on two stocks.
2. Novel superparamagnetic electromagnetic actuator according to claim 1, is characterized in that, described astrosphere is packaged with magnetic droplet in (9), and astrosphere adopts the baton round of nonferromagnetic or glass to make.
3. Novel superparamagnetic electromagnetic actuator according to claim 1, is characterized in that, stock is made up of the glass of nonferromagnetic or rubber.
4. Novel superparamagnetic electromagnetic actuator according to claim 1, is characterized in that, begin to crop up (10) are made up of rubber or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310002159.2A CN103095089B (en) | 2013-01-04 | 2013-01-04 | A kind of Novel superparamagnetic electromagnetic actuator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310002159.2A CN103095089B (en) | 2013-01-04 | 2013-01-04 | A kind of Novel superparamagnetic electromagnetic actuator |
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| Publication Number | Publication Date |
|---|---|
| CN103095089A CN103095089A (en) | 2013-05-08 |
| CN103095089B true CN103095089B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310002159.2A Active CN103095089B (en) | 2013-01-04 | 2013-01-04 | A kind of Novel superparamagnetic electromagnetic actuator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180088121A (en) | 2017-01-26 | 2018-08-03 | 엘지전자 주식회사 | moving core type recyprocating motor and compressor having the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112226U (en) * | 1991-12-04 | 1992-08-05 | 吴延陵 | Solenoid type electric motor |
| CN102200425A (en) * | 2010-03-25 | 2011-09-28 | 雅马哈株式会社 | Apparatus for detecting displacement of electromagnetic actuator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200758A (en) * | 1984-03-23 | 1985-10-11 | Taitoo:Kk | Actuator using magnetic fluid |
| JPS61269659A (en) * | 1985-05-23 | 1986-11-29 | Nec Corp | Movement controller of rotational shaft |
-
2013
- 2013-01-04 CN CN201310002159.2A patent/CN103095089B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112226U (en) * | 1991-12-04 | 1992-08-05 | 吴延陵 | Solenoid type electric motor |
| CN102200425A (en) * | 2010-03-25 | 2011-09-28 | 雅马哈株式会社 | Apparatus for detecting displacement of electromagnetic actuator |
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| Publication number | Publication date |
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| CN103095089A (en) | 2013-05-08 |
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