CN1581652A - Method for driving oscillating body and electromagnetic driving mechanism - Google Patents
Method for driving oscillating body and electromagnetic driving mechanism Download PDFInfo
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- CN1581652A CN1581652A CNA03143939XA CN03143939A CN1581652A CN 1581652 A CN1581652 A CN 1581652A CN A03143939X A CNA03143939X A CN A03143939XA CN 03143939 A CN03143939 A CN 03143939A CN 1581652 A CN1581652 A CN 1581652A
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Abstract
Driving mechanism for rocking chair, rocking bed and swing is driven by electromagnetism. Permanent magnet is as stator, and electromagnetic core wrapped by operating coil and induction coil is as rotor. Induced current from induction coil and location signal of rotor control current direction of operation coil and operated location, making magnetic poles of rotor be changed properly so as to obtain moment in direction identical to rotation direction alternately and in impulse. The said moment brings along swing body, which is connected to axis of rotation of rotor, rocking automatically.
Description
Technical field
The present invention relates to a kind of method and electromagnetic drive mechanism that drives pendular body.Or rather, the present invention relates to a kind ofly drive driving method and electromagnetic drive mechanism that baby or children's similar pendular bodies such as rocking chair, shaking table, swing, wooden horse, toy are waved automatically by electromagnetic force.
Background technology
People wish to have a kind of like this mechanism always, with the electric energy is power, driving baby or children's rocking chair, shaking table, swing, wooden horse, toy etc. are pendular body (hereinafter to be referred as pendular body) similarly, does not need people's push-and-pull it is swung freely as playing on a swing.The agent structure of this pendular body normally, there are two (individual cases can be one down) to be suspended on the cantilever on the trunnion axis, the bottom of cantilever fixedly connected rocking chair, by the support (also can be other supporting way) of the supporting leg that is located at two ends, trunnion axis is set on certain level height.Under the driving of external force, seat is the center of circle together with cantilever with the horizontal axis, does the arc swing.
Usually external force has two kinds to apply mode, and a kind of is that external force is ordered about trunnion axis (hereinafter referred to as rotation axis) rotation, drives the cantilever that is fixed on the rotation axis, and does the arc swing by cantilever drive rocking chair; Another kind is when rocking chair moves to a certain position, and external force is applied directly to the rocking chair bottom, and making rocking chair and cantilever is that the arc swing is done at the center with the trunnion axis.In disclosed technology, the inventor adopts mostly by motor-driven, in time imposes the power of stirring to rotation axis by mechanical switching device, keeps the swing of pendular body.Representative wherein such as U.S. Pat 4722521, European patent EP 0286321 etc.The scheme that other has some inventors to propose is, in time, utilize the magnetic core moving linearly in the magnetic drive coil that coil produces after switching on, drive the trunnion axis rotation by the mechanical switching device that is connected again to the solenoid energising, as U.S. Pat 4616824, US4491317 etc.And the method for propositions such as U.S. Pat 3883136 and Japan Patent JP53074953 is, permanent magnet of installation below pendular body, on the fixed position that links to each other with support below the pendular body, install one and can produce the electromagnet identical and a magnetic relay switch with permanent magnet polarity, when waving the body swing through out-of-date, permanent magnet attraction magnetic relay switch closure, make electromagnet produce magnetic, the repulsive force promotion permanent magnet that produces between the electromagnet like pole relative with permanent magnet is reciprocally swung together with pendular body.
But existing these solutions all exist many deficiencies.Rotation or straight-line power need be changed into the power of stirring with motor or coil drive magnetic core as power source to axle, and transfer process mainly is to realize by mechanical device, thereby structure more complicated, efficient is lower, vibratory sensation is arranged during the application of force, noise is bigger, and manufacturing cost is also than higher certainly; Adopt the hunting period of pendular body of this type of drive fixing often in addition, not only the length of cantilever can not be regulated, and the variation of excessive load also can exert an influence because of the variation of frictional resistance and air drag the hunting period to pendular body.And the method for driving that US3883136 and JP53074953 propose, because of having only a magnetic pole interaction, and the distance between the iron core of permanent magnet and electromagnet is difficult to control smallerly, thereby efficient is also lower; Moreover pendular body has been crossed the centre position when how to guarantee that the magnetic relay switch is closed, be unlikely to since when not crossing the centre position as yet relay switch just closed and pendular body is imposed propulsive thrust; It also is the problem that this method need solve; In addition, the pendular body of swinging and be arranged on the ground alternate of relative position between electromagnet might crush child, draws safe problem.Exactly because the driving method of existing pendular body and its implementation exist problems, many pendular bodies that wave automatically are not by the marketization widely.
Summary of the invention
The objective of the invention is to propose a kind of method and electromagnetic force simple in structure, efficient is high, noise is little, safe and reliable driving pendular body and drive the driving mechanism that pendular body waves automatically.
Inventor's research experiment is found, purpose of the present invention can be achieved by the following method: make stator with permanent magnet, with the electromagnetic core that is twining actuating coil and induction coil is rotor, the sense of current and the effect position of the position signal controlling actuating coil by the induced current that obtains from induction coil and rotor rotation, or pass through from the sense of current of the induced current Control work coil of induction coil acquisition, make the magnetic pole conversion in time of rotor, magnetic field force between rotor and the stator interacts, alternately, make rotor obtain the moment identical pulsedly, and drive is automatically waved with the pendular body that the rotation axis of rotor links to each other with its rotation direction.
Inventor's research experiment is also found, by regulating the size or the supply voltage of electromagnetic force effect position, the amplitude of oscillation that all can regulate pendular body effectively.
Inventor's research experiment is also found in addition, when needs allow pendular body stop fast, with the actuating coil power supply of the electric current just in time opposite to rotor with operating state, at this moment, the action direction of rotor and stator magnet field force is just in time opposite with operating state, can make rotor obtain a propulsive thrust square, make pendular body stop in the short period of time waving.
The pendular body driving mechanism of Shi Xianing mainly is made of three parts according to the method described above:
● swing part comprises by the electromagnetic core that is twining actuating coil and induction coil and rotor of forming and the pendular bodies that link to each other with rotation axis etc. such as the rotation axis that passes electromagnetic core;
● standing part comprises the stator that the fixed cover of the arc permanent magnet of being answered by pole pair and fixed permanent magnet is formed, and supports the bearing of rotation axis, housing etc.;
● the swing that electric and control section is included as rotor and pendular body provides the operating circuit of power and the control circuit of Control work circuit working etc.
The stator of pendular body electromagnetic drive mechanism of the present invention and the structural relation of rotor and operation principle and direct current machine broadly similar, different is, the result of the variation of latter rotor field drives rotor constantly to rotate along same direction, and the result that the former rotor field changes drives rotor to swing back and forth about in certain amplitude of oscillation.Because the magnetic field force direct driving rotor also drives the pendular body swing, do not have other mechanical switching device, thereby its efficient obviously is higher than the driving mechanism that adopts motor-driven or coil drive iron core; In addition, rotor is surrounded by the magnetic field of stator, and each position of rotor all is subjected to the unanimity effect of magnetic field force, and the gap between rotor and the stator is easy to process smallerly, thereby magnetic loss is little, compares with the structure of other Electromagnetic Drive pendular body, and it is high that efficient is also obviously wanted.The high efficiency meaning of this driving mechanism not only is saves energy itself, the more important thing is, when do not have AC power or without AC power only battery-powered occasion, can lengthen working hours greatly.Certainly, the structure of this electromagnetic drive mechanism itself means that also its noise is especially little.
Theoretically, stator adopts permanent magnet and rotor employing electromagnetic core, perhaps stator adopts electromagnetic core and rotor adopts permanent magnet can realize purpose of the present invention, but take all factors into consideration factors such as difficulty of processing, stator adopts permanent magnet and rotor adopts the structure of electromagnetic core more reasonable.
The interactional number of magnet poles of stator and rotor preferably equates, and when pendular body is in perpendicular bisector position (free inactive state), the just alternate layout of the magnetic polarity orientation of rotor and stator, pendular body is center when swinging with the perpendicular bisector position like this, the stressing conditions of rotor is best.
The number of magnetic poles of stator or rotor should be an even number, and is two utmost points at least.
The main effect of operating circuit is startup to be provided and to keep the required energy of pendular body swing for actuating coil.Working power can be through direct current or battery behind the rectifier rectification.In order to guarantee personal safety, the voltage of working power is preferably 3 to 36 volts.
The main effect of control circuit is, in working order down, by Control work sense of current and effect position, or Control work sense of current only, make rotor alternately, pulse obtains the moment identical with its rotation direction; And at dead ship condition, Control work sense of current and effect position, or Control work sense of current only, make rotor alternately, pulse obtains and the moment of its direction of rotation.
Control circuit can be realized by series current direction control unit on operating circuit and position control unit; Also can sense of current control unit only be set on operating circuit realizes.
Said sense of current control unit refers to such an extent that be, when rotor rotates with pendular body, the magnetic line of force in induction coil cutting stator magnetic field produces induced potential, produce induced current after the control circuit conducting, the direction of induced potential and induced current changes with the direction of rotor rotation, this induced current amplifies back (also can without amplification) through dc amplification circuit, but the operating circuit of conducting sense of current checker alternately, it is consistent with the direction of rotor rotation that the moment that is applied to epitrochanterian magnetic field force under the operating state is remained, and the moment that is applied to epitrochanterian magnetic field force during dead ship condition remains opposite with the direction of rotor rotation.The implementation of sense of current control unit can have a variety of, and the professional with this domain knowledge can realize this controlling schemes in many ways.
The function of position control unit is, (preferably being in the position scope at center) time control circuit turn-on in the pendular body of swinging moves to a certain given position scope with the perpendicular bisector, drive the operating circuit conducting, that is to say that electromagnetic force is to the pendular body application of force in this position; When the movement position of pendular body exceeded this position, control circuit disconnected, and caused operating circuit to disconnect, and pendular body is in the nature swing state.Obviously, in control circuit, have only when two control units all satisfy turn-on condition by position control unit and sense of current control unit series connection control, the conducting of control circuit ability, the operating circuit electricity could conducting.Because induced potential almost exists when rotor rotation always, make sense of current control unit in position scope, possess turn-on condition than broad, thereby the size of position control unit conducting scope, also just determined to be subjected to the size of electromagnetic force effect position at the amplitude of oscillation internal rotor of pendular body.In other words, can regulate the size of the pendular body amplitude of oscillation by the size of regulating control unit conducting position, position.Under the constant situation of other condition, the scope of control unit conducting position, position is more little, and the amplitude of oscillation of pendular body is just more little; Otherwise the amplitude of oscillation of pendular body is just big more.
Position control can have multiple implementation method, as: the side dry-reed tube switch that the opposing party's relative fixed with the rotation axis rotation is made up of permanent magnet and tongue tube open in usual; Rotate with rotation axis and optoelectronic switch that the opposing party's relative fixed is made up of be in the light mechanism and optoelectronic switch by a side; Mechanical switch etc.
The size of regulating the pendular body amplitude of oscillation also can realize by the method for regulating supply voltage.
The size of regulating the pendular body amplitude of oscillation can also adopt the size of regulating control unit conducting position, position to make up with adjusting power source voltage dual mode and realize.
Above-mentioned flexile pendular body amplitude of oscillation regulative mode can make people regulate the amplitude of oscillation of pendular body at an easy rate under the situation of pendular body loads change.
In fact the said control circuit that sense of current control unit only is set on operating circuit is equivalent to the position control unit and is in conducting state always in the whole amplitude of oscillation.In other words, only come the Control work circuit with sense of current control unit.In this case, electromagnetic force is the application of force always in the whole amplitude of oscillation of pendular body almost, only in the very little scope of pendular body during near amplitude of oscillation position, because the swing speed of pendular body is low excessively, cause induced potential or induced electricity to flow through low and can not the conducting operating circuit, pendular body just be in the state that freely swings.The size of at this moment regulating the pendular body amplitude of oscillation can only realize by the method for regulating supply voltage.
In fact the mode that realizes parking function is exactly that a bidirectional switch is installed on operating circuit, during parking with the supplier of electricity of actuating coil to oppositely, during at this moment operating circuit conducting, electromagnetic force applies a propulsive thrust square to pendular body, and the pendular body of swinging because of inertia force is stopped swinging rapidly.It is essential that this parking function is not all pendular bodies institute, but be particularly suitable for use in large-scale pendular body such as the swingboat that resembles the public place of entertainment or have on the driving mechanism that parking function requires.
Because the design feature of pendular body driving mechanism of the present invention and special control mode adopt to change the hunting period of the pendular body of this driving mechanism, in other words, can allow to regulate the length of pendular body cantilever.This function that can regulate jib-length has satisfied the requirement of people to flexibility.For example, the cantilever of baby rocking chair is made into telescopic structure, can satisfies the requirement of baby under all ages and classes stage different situations better.
The security features of driving mechanism of the present invention is very outstanding.At first, the dc powered with low-voltage has guaranteed Electrical Safety; Secondly, when pendular body is stuck because of improper reason, because rotor stops operating, the non-inductive electromotive force of induction coil, the non-inductive electric current of control circuit, operating circuit cuts off the power supply automatically, thereby can avoid the personal injury or the mechanical failure that cause thus; Moreover other driving mechanism structure compared of this driving mechanism and prior art is simple, volume is little, and when the rocking chair that is used for the baby was installed in the height and position of trunnion axis, the danger that rocking chair integral body is toppled over reduced, just in case topple over, the extent of injury also can reduce.
This pendular body is owing to rotor directly contacts with stator, no matter be to stop or running status, when the swing of artificial promotion pendular body, do not resemble have other driving mechanism that drives rotation axis jammed may, at this moment, driving mechanism and whole pendular body are still swung freely.
In addition, this driving mechanism almost can self-starting, because the slight swing of pendular body all can produce induced current in control circuit, makes operating circuit work.
Description of drawings
Below be the embodiment that proposes for ease of understanding the present invention better, the content of institute of the present invention letter lid can not be understood that to only limit to present embodiment.
The perspective view that waves body (baby rocking chair) of figure-1 drive mechanism of the present invention.
Figure-2 rotors are two utmost points, and the position control unit adopts the front section view of the driving mechanism of dry-reed tube switch.
The side sectional view of figure-3 driving mechanisms.
The perspective view of the optoelectronic switch that figure-4 is made up of adjustable be in the light mechanism and optoelectronic switch.
Figure-5 is composed in series the driving mechanism fundamental diagram of control circuit by sense of current control unit and position control unit.
The operating state schematic diagram of figure-6/1 ~ 6 driving mechanism in a hunting period.
Embodiment
Embodiment 1
Shown in the figure-1 is the baby rocking chair of trunnion axis disconnection type.In figure-1, two cantilevers (3) bottom of pendular body is connecting rocking chair (4), the top is connected with the driven shaft that is positioned at the other end (7) with the rotation axis of the driving mechanism that is arranged in an end (1) respectively, and 4 supporting legs of support (2) are supported on the certain altitude position with the driven bearing in driving mechanism (1) and the driven bearing box (5) respectively.Start button (6) and position are regulated knob (20) and are installed in respectively on the fixed head of driving mechanism (1).Under the driving of driving mechanism (1), cantilever (3) drives rocking chair (4) swing.
From figure-2 with scheme-3 structural relations of driving mechanism as can be seen.The internal layer of the dumbbell shape iron core (9) of rotor is twining actuating coil (12), skin is twining induction coil (13), the rotation axis of rotor (8) passes from iron core (9) center and by fixed, the both sides of rotation axis (8) are supported in the bearing (21) that is installed on the fixed head (23) respectively and are installed on the bearing (21 ') on the housing (24), one end of rotation axis (8) is fixedlyed connected with cantilever (3), and the variable-diameter structure of rotation axis (8) and gland (22) can limit the play back and forth of rotation axis (8) effectively.Stator is mainly by fixed cover (10) be fixed on about two inboard circular arc permanent magnet (11) and (11 of arranging ') of fixed cover (10) and form, the magnetic pole of two magnet inboards is corresponding mutually, inboard as magnet (11) is that the S utmost point outside is the N utmost point, and the inboard of magnet (11 ') then is that the N utmost point outside is the S utmost point.On rotation axis (8), fixing connector (14), its bottom is fixing that tongue tube open in usual (15) is corresponding with it to be, on disc (18), fixing cuboid magnet (17), the another side of disc (18) is connecting the bull stick (19) that passes fixed head (23) and be connected the hanging stick (16) on the fixed cover (10), the knob (20) that is fixed on the bull stick (19) by rotation can drive the 90 degree rotations of cuboid permanent magnet (17) do, and this compound mode constitutes one two gear position and regulates dry-reed tube switch.When wishing the less swing amplitude of pendular body, cuboid permanent magnet (17) is transferred to plumbness, at this moment the magnetic field of magnet is less relatively to the sphere of action of tongue tube; When wishing that pendular body is swung by a relatively large margin, cuboid permanent magnet (17) is transferred to level (as shown in figure-3), at this moment the magnetic field of magnet is relatively large to the sphere of action of tongue tube.Under the nature inactive state, the center line of centre of rotor line, connector (14) and hanging stick (16) and the center line of pendular body center of gravity all overlap with perpendicular bisector.Electric and the controlling parts of power supply and other is fixedly installed on the correct position of fixed head (20) (not drawing among the figure).
In the driving mechanism fundamental diagram shown in the figure-5, the iron core (9) that rotates with the rotation axis (8) of rotor is gone up internal layer and is being twined actuating coil (12), skin is twining induction coil (13), its both sides are two fixing circular arc permanent magnet (11) and (11 '), and the inboard of permanent magnet (11) is that the S utmost point outside is the N utmost point; And the inboard of permanent magnet (11 ') is to be the S utmost point outside the N utmost point.Under the nature inactive state, the center line of the iron core of rotor (9) overlaps with perpendicular bisector.β is the pivot angle (also being the pivot angle of pendular body) of the rotor of pendular body when being rocked to amplitude of oscillation position, and α is that electromagnetic force is to pendular body application of force position.Actuating coil (12) on power supply (33), mains switch (34), position control unit (35) (present embodiment is a dry-reed tube switch), sense of current control unit (36), bidirectional switch (37), the iron core (9) and induction coil (13) and the lead etc. that is connected each components and parts are formed operating circuit and control circuit.Turn on the power switch (34), pendular body is in running order, when wanting to allow pendular body stop swinging, switches bidirectional switch (37), and the propulsive thrust square stops swinging pendular body very soon.Powered-down switch (34), process finishes.
Describe the operating state (for simplicity, having omitted mains switch (34) and bidirectional switch (37) among the figure) of pendular body driving mechanism in a hunting period in detail below in conjunction with figure-6/1 ~ figure-6/6.
After mains switch is opened, touch pendular body (being depicted as clockwise direction) as figure-6/1, rotor clockwise rotates with pendular body, induction coil (13) is with the magnetic line of force of subvertical angle cutting stator permanent magnet (11) and (11 '), thereby produces induced potential in induction coil (13).This moment rotor the absolute value of pivot angle | θ |＜1/2 α is in the position that makes static relatively reed switch contact closure, position control unit (35) conducting (dry-reed tube switch conducting) with the magnetic field of the permanent magnet (17) of rotor swing.Meanwhile, sense of current control unit (36) conducting, the induced current that induction coil (13) produces is behind overcurrent direction control unit (36), cause the operating circuit conducting of corresponding operating current direction, so whole operating circuit is in conducting state, operating current makes in iron core (9) formation two magnetic poles of S under the N in the magnetic field that actuating coil (12) go up to produce.At this moment, the upper and lower of iron core (9) is subjected to the thrust on permanent magnet (11 ') top and the pulling force of bottom respectively, and the pulling force on permanent magnet (11) top and the thrust of bottom, coefficient result has applied a clockwise moment on the clockwise direction of rotor, promote pendular body further deflection along clockwise direction.When pendular body and rotor rotation extremely | θ | during＞1/2 α (position shown in figure-6/2), permanent magnet (17) turns to and has exceeded the position that can make the reed switch contact closure, tongue tube automatic disconnection open in usual, whole operating circuit outage, iron core (9) is in no magnetic state.But this moment, pendular body also can continue to rotate along clockwise direction under effect of inertia, and just speed is more and more slower, and kinetic energy reduces gradually, and potential energy increases gradually.Arrive the extreme higher position of this hunting period when the position of pendular body after, under the effect of gravity, pendular body begins in the counterclockwise direction to backswing moving (shown in figure-6/3), at this moment, though induction coil has induced potential in (13), but because | θ |＞1/2 α, dry-reed tube switch is obstructed, the operating circuit no current.When rotor continues to be rocked to position shown in the figure-6/4, pendular body enters | θ | and the position of＜1/2 α, dry-reed tube switch is closed once more, induction coil this moment (13) produces an induced potential and an induced current opposite when rotating with clockwise direction, induced current is behind overcurrent direction control unit (36), cause operating circuit to produce an opposite operating current of direction when rotating with clockwise direction, this operating current makes in iron core (9) generation two magnetic poles of N under the S, and the result of the magnetic field interaction of stator and rotor has applied an anticlockwise moment to the pendular body that counter clockwise direction is being rotated.At inertia force, under the acting in conjunction of gravity and magnetic field force, pendular body is accelerated until swinging to counterclockwise | θ | and=1/2 α.Afterwards, shown in figure-6/5, operating circuit cuts off the power supply once more, and pendular body continues to rotate in the counterclockwise direction under the effect of inertia force, until the peak that arrives this hunting period.Pendular body leans on gravity and inertia force to return beginning again and rotates (shown in figure-6/6) along clockwise direction then.When turning to | θ | during the position of＜1/2 α, operating circuit conducting again.In the same way, drive mechanism pendular body reciprocally swinging.In swing process, pendular body both had been subjected to the positive acting of magnetic field force, was subjected to simultaneously the acting in opposition of air drag and frictional force etc. again, when positive acting moment during greater than acting in opposition moment, and the amplitude of oscillation of pendular body increasing (startup stage belong to this kind state).Along with the increase of the amplitude of oscillation, opposing torque is also increasing, and when forward moment and opposing torque reached balance, the pivot angle of pendular body was β, and pendular body reaches stable operating state.
What figure-4 showed is a kind of optoelectronic switch structure that can regulate the position scope continuously, other mechanical structure and the operation principle of driving mechanism that adopts this optoelectronic switch structure similar substantially to shown in the embodiment 1.Different is, the dry-reed tube switch of position control unit among the embodiment 1 is substituted with the optoelectronic switch that can regulate the position scope continuously shown in the figure-4.This optoelectronic switch is made of two parts, optoelectronic switch that can rotate with rotation axis and the relatively-stationary scalable mechanism of being in the light.The correlation optoelectronic switch (25) that is fixed on the connector (14) is industrial slot type optoelectronic switch commonly used, its inside mainly is made up of photophore that splits and light-receiving device, when between photophore and the light-receiving device during have no occluder, light-receiving device receives the light that photophore sends, the optoelectronic switch conducting; On the contrary, when between photophore and the light-receiving device shelter being arranged, the light that photophore sends is blocked, and light-receiving device does not receive the light that photophore sends, and optoelectronic switch disconnects.There are initiatively a transfer roller (27) and a driven transfer roller (27 ') in the scalable of the present invention mechanism of being in the light, suit an endless-belt (28) that respectively has a rectangular opening (29) and (29 ') up and down between the two, the center of driven transfer roller (27 ') and affixed is mutually with it passed in rotating shaft (32), one end of rotating shaft (31) passes the center of transfer roller (27) initiatively and affixed mutually with it, the other end passes fixed head (23) and is fixedly mounting knob (20), what be installed in belt (28) below is that the middle part has a rectangular opening (30), be pressed into the rectangle light barrier (26) of arc, the part of turning up on two long limit has four circular holes, rotating shaft (31) and (32) are passed these four circular holes respectively and can be rotated in the hole, and a stile of turning up of light barrier (26) is fixed on the bottom of the fixed cover (10) of rotor.The long limit size of the rectangular opening (30) on the light barrier (26) is greater than the rectangular opening (29) on the endless-belt (28) and the long limit of (29 '), but less than the distance between the outer rim of two transfer rollers, thereby the light that the photophore that guarantees the optoelectronic switch (25) swung in the maximum amplitude of oscillation of pendular body sends has only three rectangular openings of seeing through could arrive light-receiving device, makes the optoelectronic switch conducting; Otherwise the light that photophore sends is blocked by belt (28) or light barrier (26), causes optoelectronic switch to be in closed condition.When needs are regulated the amplitude of oscillation, rotation knob (20), rotating shaft (31) and active transfer roller (27) rotate thereupon, by the frictional force between transfer roller and the belt, belt (28) rolls, and then drive driven transfer roller (27 ') and rotate, when belt (28) rolls, two rectangular openings (29) and (29 ') move horizontally with opposite direction about it, the scope of printing opacity is changed, when two residing positions of rectangular opening overlap up and down, the transparency range maximum, the position maximum that is equivalent to the electromagnetic force effect, this moment, the amplitude of oscillation of pendular body was also just maximum; With this position is the center, and knob (20) is no matter clockwise or be rotated counterclockwise transparency range is diminished, and the position that is equivalent to the electromagnetic force effect diminishes, and the amplitude of oscillation of pendular body also just diminishes; When two rectangular openings just stagger mutually, when the light that photophore sends in the whole amplitude of oscillation all was blocked, optoelectronic switch was in closed condition always in the whole amplitude of oscillation, and in this case, the amplitude of oscillation of pendular body is more and more littler of stopping swinging.
Claims (10)
1. with the electric energy power, drive baby or children's rocking chair, shaking table, swing, wooden horse, toys etc. are the method and the driving mechanism of pendular body similarly, it is characterized in that: make stator with permanent magnet, with the electromagnetic core that is twining actuating coil and induction coil is rotor, the sense of current and the effect position of the position signal controlling actuating coil by the induced current that obtains from induction coil and rotor rotation, or pass through from the sense of current of the induced current Control work coil of induction coil acquisition, make the magnetic pole conversion in time of rotor, magnetic field force between rotor and the stator interacts, alternately, make rotor obtain the moment identical pulsedly, and drive is automatically waved with the pendular body that the rotation axis of rotor links to each other with its rotation direction; The pendular body driving mechanism mainly is made of three parts:
● swing part comprises rotor of being made up of electromagnetic core (9) that is twining actuating coil (12) and induction coil (13) and the rotation axis that passes electromagnetic core (9) (8) and the pendular body that links to each other with rotation axis (8) etc.;
● standing part comprises the stator that the fixed cover (10) of the circular arc permanent magnet (11) of being answered by pole pair and (11 ') and fixed permanent magnet is formed, and supports bearing (18) and (18 ') of rotation axis, housing etc.;
● the swing that electric and control section is included as rotor and pendular body provides the operating circuit of power and the control circuit of Control work circuit working etc.
2. method according to claim 1 and driving mechanism is characterized in that: stator is a permanent magnet and rotor is the electromagnetic core that is twining actuating coil and induction coil.
3. according to claim 1 and 2 described method and driving mechanisms, it is characterized in that: the interactional number of magnet poles of stator and rotor equates, and for being 2 even number at least, and the just alternate layout of magnetic polarity orientation of rotor and stator during free inactive state.
4. method according to claim 1 and driving mechanism is characterized in that: the voltage of working power is 3～36 volts.
5. method according to claim 1 and driving mechanism is characterized in that; Control circuit is to realize by series current direction control unit on operating circuit and position control unit.
6. method according to claim 1 and driving mechanism is characterized in that: control circuit is to realize by sense of current control unit is set on operating circuit.
7. according to claim 1 and 5 described method and driving mechanisms, it is characterized in that: the size of regulating the pendular body amplitude of oscillation by the size of regulating control unit conducting position, position.
8. according to claim 1 and 5 and 6 described method and driving mechanisms, it is characterized in that: regulate the size of the pendular body amplitude of oscillation by regulating power source voltage.
9. according to claim 1 and 5 described method and driving mechanisms, it is characterized in that: make up the size of regulating the pendular body amplitude of oscillation by size and the adjusting power source voltage dual mode of regulating control unit conducting position, position.
10. method according to claim 1 and driving mechanism, it is characterized in that: a bidirectional switch optionally is installed on operating circuit, when needs stop, with the supplier of electricity of actuating coil to oppositely, with the actuating coil power supply of the electric current just in time opposite to rotor with operating state, make rotor obtain a propulsive thrust square, the pendular body of swinging because of inertia force is stopped swinging rapidly.
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| CNA03143939XA CN1581652A (en) | 2003-08-02 | 2003-08-02 | Method for driving oscillating body and electromagnetic driving mechanism |
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| CNA03143939XA CN1581652A (en) | 2003-08-02 | 2003-08-02 | Method for driving oscillating body and electromagnetic driving mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101042305B (en) * | 2006-03-20 | 2012-08-22 | 关西自动化机器有限公司 | Vibrator type level detection device |
| CN101369766B (en) * | 2007-08-16 | 2013-05-15 | 刘吉彬 | Directly driven motor device and its uses |
| CN103368481A (en) * | 2012-04-03 | 2013-10-23 | 儿童二代公司 | A driving system for an infant exercise device |
| CN106669149A (en) * | 2017-02-06 | 2017-05-17 | 昆山市苞蕾众创投资管理有限公司 | Magnetic-control children security swing |
| CN108499116A (en) * | 2018-03-31 | 2018-09-07 | 中山市通发自动化设备有限公司 | Swing convenient to use |
| CN112516600A (en) * | 2020-12-01 | 2021-03-19 | 邢台市华绿环保科技有限公司 | Unpowered rotary swing |
-
2003
- 2003-08-02 CN CNA03143939XA patent/CN1581652A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042305B (en) * | 2006-03-20 | 2012-08-22 | 关西自动化机器有限公司 | Vibrator type level detection device |
| CN101369766B (en) * | 2007-08-16 | 2013-05-15 | 刘吉彬 | Directly driven motor device and its uses |
| CN103368481A (en) * | 2012-04-03 | 2013-10-23 | 儿童二代公司 | A driving system for an infant exercise device |
| CN103368481B (en) * | 2012-04-03 | 2016-01-20 | 儿童二代公司 | A kind of drive system for baby sport device |
| CN106669149A (en) * | 2017-02-06 | 2017-05-17 | 昆山市苞蕾众创投资管理有限公司 | Magnetic-control children security swing |
| CN108499116A (en) * | 2018-03-31 | 2018-09-07 | 中山市通发自动化设备有限公司 | Swing convenient to use |
| CN112516600A (en) * | 2020-12-01 | 2021-03-19 | 邢台市华绿环保科技有限公司 | Unpowered rotary swing |
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