CN101404439A - Brushless electric machine - Google Patents
Brushless electric machine Download PDFInfo
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- CN101404439A CN101404439A CNA2008101491857A CN200810149185A CN101404439A CN 101404439 A CN101404439 A CN 101404439A CN A2008101491857 A CNA2008101491857 A CN A2008101491857A CN 200810149185 A CN200810149185 A CN 200810149185A CN 101404439 A CN101404439 A CN 101404439A
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Abstract
The present invention provides a brushless electric machine that is able to efficiently utilize the magnetic flux of the permanent magnets. The brushless electric machine is provided wiht a first member (40a) and a second member (50a). The first member (40a) has a magnet assembly (20) that includes a plurality of permanent magnets (10) held with their homopoles contacting one another. The second member (50a) includes magnet coils (30), and is designed to be changeable in position relative to the first member. The magnet assembly (20) generates the strongest magnetic field in a magnetic field direction lying in the homopolar contact plane at which the homopoles contact one another, the magnetic field direction being oriented outward from the magnet assembly (20) along the magnetic field direction.
Description
Technical field
The present invention relates to a kind of brushless electric machine that has used permanent magnet and solenoid.
Background technology
Brushless electric machine is the term with the meaning that comprises brushless motor and brushless generator.As brushless motor, for example known have a brushless motor described in the following patent documentation 1.
Patent documentation 1: TOHKEMY 2001-298982 communique
Yet existing brushless electric machine has the abundant surely problem of utilizing the magnetic flux of permanent magnet efficiently that differs.
Summary of the invention
The object of the present invention is to provide the brushless electric machine of the magnetic flux that utilizes permanent magnet efficiently.
The present invention finishes at least a portion that addresses the above problem, can be in the following manner or suitable example realize.
[being suitable for example 1]
A kind of brushless electric machine is characterized in that, this brushless electric machine has: first mobile member, and it has magnet assemblies, and this magnet assemblies comprises a plurality of permanent magnets that are maintained under the state that is in contact with one another between the homopolarity; And second mobile member, it comprises solenoid, and the relative position of this second mobile member and described first mobile member is variable, described magnet assemblies is along the magnetic direction on the homopolarity contact-making surface that is in contact with one another between the homopolarity and from described magnet assemblies magnetic direction toward the outer side, produce the strongest magnetic field, described solenoid is configured to the electric current edge and flows with the direction that described magnetic direction intersects.
According to this structure, can be on the homopolarity contact-making surface of magnet assemblies, along producing the strongest magnetic field from magnet assemblies magnetic direction toward the outer side.Therefore, can realize to utilize efficiently the brushless electric machine of the magnetic flux of permanent magnet.
[being suitable for example 2]
As being suitable for example 1 described brushless electric machine, it is characterized in that, this brushless electric machine also has control circuit, this control circuit control is to described solenoid power supply or from described solenoid regenerated electric power, described control circuit can be carried out at least a of following control: (i) regeneration control, along with described first mobile member and described second mobile member relatively move along predetermined direction, make the direct current power regeneration that produces in the described solenoid; (ii) drive controlling does not change the sense of current of supplying with described solenoid, by supply with the drive current of the first predetermined sense of current to described solenoid, makes described brushless electric machine along predetermined driving direction action.
According to this structure, can realize to utilize efficiently the brushless motor and the brushless generator of the magnetic flux of permanent magnet.
[being suitable for example 3]
As being suitable for example 1 or 2 described brushless electric machines, it is characterized in that described a plurality of permanent magnets form flat shape respectively, described magnet assemblies be described a plurality of permanent magnet with the perpendicular direction of described homopolarity contact-making surface on the laminate that forms of lamination.
In this structure, owing to can therefore can realize to utilize the brushless electric machine efficiently in this magnetic field towards producing high-intensity magnetic field with the perpendicular direction of lamination direction.
[being suitable for example 4]
As being suitable for example 1 or 2 described brushless electric machines, it is characterized in that, described a plurality of permanent magnet forms the shape of fan-shaped or arc respectively, described magnet assemblies forms fan-shaped described a plurality of permanent magnets is configured to the discoid shape that forms, and the described a plurality of permanent magnets that perhaps have arc are configured to the circular shape that forms.
In this structure, owing to can therefore can realize to utilize the brushless electric machine efficiently in this magnetic field along the radially generation high-intensity magnetic field of the circle of discoid shape or circular shape.
[being suitable for example 5]
As being suitable for each the described brushless electric machine in the example 1 to 4, it is characterized in that, described first mobile member and described second mobile member constitute with the perpendicular direction of described homopolarity contact-making surface on can relatively move.
In addition, the present invention can accomplished in various ways, for example can realize as follows: motor, generator, their control method, use their actuator or electronic equipment, fuel cell power plant, robot, vehicle etc.
Description of drawings
Fig. 1 is the key diagram of the summary structure of the employed magnet assemblies of expression various embodiment of the present invention.
Fig. 2 is the cutaway view of expression as the structure of the linear motor of first embodiment.
Fig. 3 is the figure of the variation of expression first embodiment.
Fig. 4 is the cutaway view of expression as the structure of the linear motor of second embodiment.
Fig. 5 is the cutaway view of expression as the structure of the brushless rotary electromotor of the 3rd embodiment.
Fig. 6 is the figure of the variation of expression the 3rd embodiment.
Fig. 7 is the cutaway view of expression as the structure of the brushless rotary electromotor of the 4th embodiment.
Fig. 8 is the cutaway view of expression as the structure of the brushless rotary electromotor of the 5th embodiment.
Fig. 9 is the cutaway view of expression as the structure of the brushless rotary electromotor of the 6th embodiment.
Figure 10 is the block diagram of structure of the control circuit of expression brushless electric machine.
Figure 11 is the circuit diagram of the structure of expression drive circuit portion.
Figure 12 is the circuit diagram of the internal structure of expression regeneration control part.
Figure 13 is that the key diagram according to the projecting apparatus of the motor of embodiments of the invention has been used in expression.
Figure 14 is that the key diagram according to the fuel cell formula mobile phone of the motor of embodiments of the invention has been used in expression.
Figure 15 is that the key diagram as the electric bicycle (electric assisted bicycle) of an example of vehicle according to the motor/generator of embodiments of the invention has been used in expression.
Figure 16 is that the key diagram according to an example of the robot of the motor of embodiments of the invention has been used in expression.
Label declaration
10: permanent magnet
10c: homopolarity contact-making surface
10p: permanent magnet is right
20: magnet assemblies
26: the electromagnetic yoke member
30: solenoid
40a, 40b: first mobile member
40c～40f: rotor (first mobile member)
50a, 50b: second mobile member
50c～50f: stator (second mobile member)
52: framework
54: Magnetic Sensor
56: the electromagnetic yoke member
100a, 100b: brushless linear motor
100c～100f: rotary electromotor
110: upper axis
114: spring
120: lower shaft
124: hold-down screw
130: housing
200: the drive signal generating unit
210: drive circuit portion
220: the regeneration control part
222: rectification circuit
224: switching transistor
230: electric storage means
240: the electric power storage control part
The 300:CPU system
500: Drive and Control Circuit
600: projecting apparatus
610R, 61G, 610B: light source
640R, 64G, 640B: liquid crystal light valve
650: cross dichroic prism
660: projection lens system
670: cooling fan
680: control part
700: mobile phone
710:MPU (microprocessor)
720: fan
730: fuel cell
800: bicycle
810: motor
820: control circuit
830: rechargeable battery
900: robot
910,920: mechanical arm
930: motor
Embodiment
Then, embodiments of the present invention are described according to following order.
A. the structure of magnet assemblies;
B. various embodiment;
C. circuit structure;
D. variation.
A. the structure of magnet assemblies:
Fig. 1 (A)～(E) is the key diagram of the summary structure of the employed magnet assemblies of expression various embodiment of the present invention.Fig. 1 (A) represents a permanent magnet 10.This magnet 10 is magnetized along the vertical direction.Represent the magnetic line of force from the N utmost point arrow that comes out and the arrow that enters the S utmost point.The permanent magnet that Fig. 1 (B) represents to be made of two magnet 10 is to 10p.This permanent magnet is to be maintained at two magnet 10 to form down with the state that is in contact with one another between the N utmost point to 10p.Under this state, keep two magnet 10, then shown in thick arrow,, produce the strongest magnetic field along from the magnetic direction MD of its homopolarity contact-making surface 10c towards the outside.Wherein, " homopolarity contact-making surface " means by the surperficial determined plane between the homopolarity that is in contact with one another.Fig. 1 (C) expression permanent magnet is to the distribution of the surface magnetic flux density of 10p.In addition, magnetic direction MD is the direction on homopolarity contact-making surface 10c and is from inside (more preferably from central authorities) toward the outer side the direction of permanent magnet to 10p.This magnetic direction MD is from inside (more preferably from central authorities) toward the outer side the radial direction of permanent magnet to 10p under the less situation of the size of magnet 10.According to inventor's test, find that permanent magnet has reached about twice of the surface magnetic flux density (being the magnetic flux density of the upper surface of Fig. 1 (A)) of single magnet 10 to the surface magnetic flux density of the magnetic direction MD of 10p.Therefore, in various embodiment of the present invention, utilize the high-intensity magnetic field of magnetic direction MD to constitute motor or generator.In addition, also can constitute the permanent magnet that is not the N utmost point but contacts between the S utmost point to 10p.
Fig. 1 (D) expression comprises the magnet assemblies 20 of six flat permanent magnets 10.The adjacent magnets of magnet assemblies 20 is maintained between the N utmost point or under the state that is in contact with one another between the S utmost point.The distribution of the surface magnetic flux density of Fig. 1 (E) expression magnet assemblies 20.Be appreciated that from this chart around magnet assemblies 20 (position, the left and right sides of Fig. 1 (D)), among homopolarity contact-making surface 10c between the N utmost point and the homopolarity contact-making surface 10c between the S utmost point, producing respectively has very big surface magnetic flux density.From this example, be appreciated that, comprise that the magnet assemblies of three above magnet can produce big magnetic flux density respectively at the N utmost point and the S utmost point.In addition, usually, magnet assemblies 20 can be made of a plurality of permanent magnets that remain under the state that is in contact with one another between the homopolarity.
B. various embodiment
Fig. 2 (A) is the longitudinal sectional view of expression as the structure of the brushless DC motor of first embodiment.This linear motor 100a has: the first mobile member 40a that comprises magnet assemblies 20; With the second mobile member 50a that comprises solenoid 30.In this example, magnet assemblies 20 is laminates that eight flat permanent magnets of lamination form.Fig. 2 (B) has only represented the second mobile member 50a.This mobile member 50a has: the framework of hollow cylindrical (frame member) 52, be disposed at framework 52 a plurality of solenoids 30, be centered around electromagnetic yoke parts 56 and Magnetic Sensor 54 around these solenoids 30.Magnetic Sensor 54 is as the position transducer of the relative position relation that detects two mobile member 40a, 50a.Each solenoid 30 along continuous straight runs (left and right directions among the figure) is respectively reeled.In addition, shown in Fig. 2 (A), solenoid 30 with magnet assemblies 20 in the N utmost point of a plurality of magnet (herein being 5 magnet) and the extremely corresponding position of S be configured.In addition, in two kinds of marks shown in the section of coil, have first mark of stain to represent that electric current flows to face side from the rear side of paper in the circle, have in the circle * second mark represent that electric current flows to rear side from the face side of paper.In addition, the difference of the phase place of two of current opposite in direction solenoids 30 is π.In electric motors, the difference of phase place is the coil that the coil of π can be thought homophase.According to this definition, this linear motor 100a is a single-phase motor.
Fig. 2 (C) is the upward view of linear motor 100a.(perhaps central authorities) are radially and extend near the extremely magnetic direction MD of N toward the outer side from magnet assemblies 20 inside.In Fig. 2 (C), when electric current flows through solenoid 30 along sense of current CD, on the solenoid 30 there be from the rear side of the paper actuating force towards the face side direction effect.Under the situation that the second mobile member 50a with solenoid 30 is fixed, the first mobile member 40a is driven towards the direction of rear side to the face side from the paper of Fig. 2 (C).This sense of current switches at the N utmost point of each coil 30 arrival magnet assemblies 20 and the moment of S utmost point position intermediate.Like this, this brushless linear motor 100a switches the electric current that flows through solenoid 30 along with being in due course, and can make driving direction DD (above-below direction) action of magnet assemblies 20 along Fig. 2 (A).
In the example of Fig. 2 (C), the horizontal profile of magnet assemblies 20 is a rectangle, but the horizontal profile shape of magnet assemblies 20 also can adopt arbitrary shapes such as circle or triangle.But each permanent magnet 10 that is preferably formation magnet assemblies 20 is not the bigger bar-like shape of distance between the magnetic pole, but the less plate-like shape of the distance between the magnetic pole (thickness).Its reason is, use magnet assemblies 20 the electric machinery utilization be the high-intensity magnetic field of homopolarity contact-making surface 10c place generation, so the more little efficient of the thickness of magnet 10 is high more.In this case, the direction of magnetization of preferred permanent magnet 10 is consistent with the direction of thickness minimum.
Fig. 3 represents the variation of the motor of first embodiment shown in Figure 2.In this variation, appended the core material of yoke member 58 as coil.Append yoke member 58 and can obtain bigger moment.
Fig. 4 (A) is the longitudinal sectional view of expression as the structure of the brushless DC motor of second embodiment.This linear motor 100b has: the first mobile member 40b that comprises magnet assemblies 20; With the second mobile member 50b that comprises solenoid 30.Fig. 4 (B) has only represented the second mobile member 50b.Different with the mobile member 50a shown in Fig. 2 (B), this mobile member 50b comprises two phase coils of A phase coil 30A and B phase coil 30B.In addition, Magnetic Sensor also is provided with A phase transducer 54A and B two of transducer 54B mutually.And then framework 52 is provided with Drive and Control Circuit 500.A phase coil 30A and B phase coil 30B are interconnected under uniform distances.Spacing between A phase coil 30A and the B phase coil 30B is set at identical with the spacing of the homopolarity contact-making surface of magnet assemblies 20 in addition.
In the state shown in Fig. 4 (A), (B), there is electric current to flow through among the B phase coil 30B, and do not have electric current to flow through among the A phase coil 30A.But the relative position of two mobile member 40b, 50b changes from the state of Fig. 4 (A), and when the N utmost point of a magnet of A phase transducer 54A arrival and the moment of S utmost point position intermediate, electric current flows through A phase coil 30A, and the electric current of B phase coil 30B stops.Like this,, carry out two-phase and drive, can drive along driving direction DD by suitably switching the electric current (promptly applying voltage) of A phase coil 30A and B phase coil 30B.
Fig. 5 (A) is the longitudinal sectional view of expression as the structure of the brushless rotary electromotor of the 3rd embodiment, and Fig. 5 (B) is the cutaway view along B-B line among Fig. 5 (A).This rotary electromotor 100c has: rotor (first mobile member) 40c that comprises magnet assemblies 20c; With the stator that comprises solenoid (second mobile member) 50c.Solenoid is fixed in the interior week of housing 130.The upper axis 110 of rotor 40c and lower shaft 120 keep by bearing 112,122 respectively.The bottom of magnet assemblies 20c is connected with lower shaft 120 by hold-down screw 124.On the other hand, be provided with spring 114 around the upper axis that is connected with the upper end of magnet assemblies 20c 110, pressure from housing 130 inner surfaces is born by this spring 114 in the upper end of magnet assemblies 20c.But such syndeton only is an example, also can adopt other various syndetons.
Shown in Fig. 5 (B), the magnet assemblies 20c of the 3rd embodiment forms a plurality of fan-shaped permanent magnets and is maintained at discoid shape under the state that is in contact with one another between the homopolarity.The part of the top of magnet, bottom and periphery is kept by electromagnetic yoke member 26.Therefore, high-intensity magnetic field is shown in black arrow radially and produces along a plurality of directions.
Be provided with A phase coil 30A and B phase coil 30B as solenoid.In the example of Fig. 5 (B), A phase coil 30A and B phase coil 30B respectively are provided with six respectively, and A phase coil 30A is configured near interior all sides, and B phase coil 30B is configured near outer circumferential side.In addition, the outside of B phase coil 30B disposes electromagnetic yoke member 56.Each coil serves as axle with radial direction in Fig. 5 (B) and reels around this axle, and this radial direction is from the center of motor toward the outer side.In addition, omit the diagram of Magnetic Sensor.In this motor 100c,, just can drive along the direction of main story and counter-rotating by suitably switching the sense of current of A phase coil 30A and B phase coil 30B.
In addition, in the 3rd embodiment, represent as example, also can adopt other numbers of poles or the number of phases with the sextupole two-phase motor that has used six permanent magnets.But from reducing axial vibration this respect, preferred number of poles is set at 2
nIndividual (n is the integer more than 2).
Fig. 6 represents the variation of the motor of the 3rd embodiment.It is the structure of circle shape (circular) that this motor 100c ' has the integral body that is made of a plurality of magnet 20c '.In addition, also can be at interior all side configuration yoke members of a plurality of magnet 20c.In addition, in this motor 100c ', A phase coil 30A and B phase coil 30B are disposed on the same circumference.And then, append yoke member 32 respectively as the core material of A phase coil 30A and B phase coil 30B.This variation also can obtain the effect identical with the 3rd embodiment.In addition, owing to appended yoke member 32, therefore can obtain bigger torque.
Fig. 7 is the cutaway view of expression as the structure of the brushless rotary electromotor of the 4th embodiment.This rotary electromotor 100d is disposed on interior all side this point of magnet assemblies 20d different with the 3rd embodiment at the magnet assemblies 20d this point of having used ring-type and A phase coil 30A.Each permanent magnet that constitutes magnet assemblies 20d forms the shape of arcuation (being circular-arc more definitely).Use a plurality of permanent magnets of these arcuations to form the magnet assemblies 20d of ring-type.This motor 100d also can make rotor 40d relative stator 50d drive along the direction that rotates and reverse.In addition, in this embodiment,, therefore can further raise the efficiency owing to the inboard of the magnet assemblies 20d that can use ring-type and the outside two sides' magnetic flux density.
Fig. 8 (A) is the longitudinal section of expression as the structure of the brushless rotary electromotor of the 5th embodiment, and Fig. 8 (B)～(D) is its sectional elevation.Shown in Fig. 8 (C), this rotary electromotor 100e has rotor 40e, and this rotor 40e comprises the discoid magnet assemblies 20e that is made of a plurality of fan-shaped permanent magnets.The inner periphery and the outer periphery of this magnet assemblies 20e keep by electromagnetic yoke member 26.Therefore, magnet assemblies 20e edge and perpendicular direction (above-below direction of Fig. 8 (A)) the generation high-intensity magnetic field of the paper of Fig. 8 (C).Stator 50e is provided with B phase coil 30B shown in A phase coil 30A shown in Fig. 8 (B) and Fig. 8 (D).As by can appreciate that among Fig. 8 (A) that A phase coil 30A and B phase coil 30B are configured in its both sides (promptly configuration) up and down across rotor 40e.High-intensity magnetic field (magnetic flux density) mainly towards the above-below direction of Fig. 8 (A), therefore can be effectively utilized by these coils 30A, 30B in the magnetic field of magnet assemblies 20e.
Fig. 9 (A) is the longitudinal section of expression as the structure of the brushless rotary electromotor of the 6th embodiment, and Fig. 9 (B)～(D) is its sectional elevation.The rotor 40f of this rotary electromotor 100f has upper magnet assembly 20fu and bottom magnet assemblies 20fd.Shown in Fig. 9 (B), (D), these magnet assemblies 20fu, 20fd form the discoid shape that is made of a plurality of fan-shaped permanent magnets respectively.Each magnet positions of these magnet assemblies 20fu, 20fd staggers mutually with each distance between two poles 1/2.Stator 50f has A phase coil 30A and the B phase coil 30B that faces magnet assemblies 20fu, 20fd respectively.Shown in Fig. 9 (C), (E), also stagger mutually with 1/2 of each coil-span in the position of these coils 30A, 30B.According to the 6th embodiment, same with the motor of the 5th embodiment, can apply flexibly effectively from the high-intensity magnetic field of the above-below direction of magnet assemblies 20fu, 20fd generation.
As what be appreciated that by above various embodiment, the brushless electric machine of embodiments of the invention has: first member (being also referred to as " first mobile member "), and it has magnet assemblies, and this magnet assemblies comprises a plurality of permanent magnets; And second member (being also referred to as " second mobile member ") with solenoid, can realize the various brushless electric machines that first and second mobile members can relatively move.In addition, can adopt the number of poles and the number of phases of any amount.
C. circuit structure:
Figure 10 is the block diagram of structure of the control circuit of the brushless electric machine of expression among the embodiment.This control circuit has cpu system 300, drive signal generating unit 200, drive circuit portion 210, regeneration control part 220, electric storage means 230 and electric power storage control part 240.Drive signal generating unit 200 generates the drive signal that is used to supply with drive circuit portion 210.
Figure 11 is the circuit diagram of the structure of expression drive circuit portion 210.This drive circuit portion 210 constitutes H type bridge circuit.Provide the first drive signal DRVA1 and the second drive signal DRVA2 one from drive signal generating unit 200 to drive circuit portion 210.Electric current I A1 shown in Figure 10, IA2 represent the direction with the mobile electric current (being also referred to as " drive current ") of these drive signals DRVA1, DRVA2.In addition, the switching of electric current I A1, IA2 is suitably to carry out according to the output signal of Magnetic Sensor 54.
Figure 12 is the circuit diagram of the internal structure of expression regeneration control part 220.Regeneration control part 220 relative solenoids 30 and being connected side by side with drive circuit portion.Regeneration control part 220 has rectification circuit 222 and the switching transistor 224 that is made of diode.After making switching transistor 224 become on-state by electric power storage control part 240, can make electric power regeneration that solenoid 30 produces and electric storage means 230 is charged.In addition, also can be by electric storage means 230 to solenoid 30 power supplies.In addition, regeneration control part 220, electric storage means 230 and electric power storage control part 240 be can from control part, omit, drive signal generating unit 200 and drive circuit portion 210 perhaps also can be omitted.In addition, Figure 10～Figure 12 is the control circuit that single-phase motor is used, but also can easily be configured for the control circuit of the above any number of phases of two-phase.
Like this, in the brushless motor of the various embodiments described above, by being formed in the magnet assemblies that keeps under the state that is in contact with one another between the homopolarity, produce high-intensity magnetic field, utilize the electromagnetic interaction of this magnetic field and solenoid to produce actuating force, therefore by making electric current flow through solenoid, can in motor, produce actuating force efficiently.In addition, constitute at brushless electric machine under the situation of brushless generator, can generate electricity efficiently.In addition,, therefore become the structure that the interval is very narrow and number of poles is very many between the homopolarity, therefore can easily realize the motor efficiently of slow-speed of revolution high torque (HT) type in order between the homopolarity of permanent magnet, to form magnetic field.In addition, even the slow-speed of revolution also can access generator and reproducing characteristic efficiently.And then, in the above-described embodiments, having adopted the electric motor structure that does not have electromagnetic yoke, the present invention also can be applied to the brushless motor of charged yoke.
D. variation:
In addition, this invention is not limited to the foregoing description and execution mode, can carry out the enforcement of variety of way in the scope that does not break away from its purport, for example can be following distortion.
D1. variation 1:
In the above-described embodiments, the mechanical structure of brushless electric machine and the concrete example of circuit structure are illustrated, but the mechanical structure and the circuit structure of brushless electric machine of the present invention also can adopt except that the arbitrary structures these.
D2. variation 2:
The present invention can be applied to the motor of various devices such as fan motor, clock (pin driving), roller washing machine (unidirectional rotation), sleigh, vibrating motor.When the present invention was applied in the fan motor, above-mentioned various effects (low power consumption, low vibration, low noise, uneven, the low heating of low rotation, high life) were remarkable especially.Such fan motor can be as for example fan motor of various devices such as fuel cell power plant, projecting apparatus such as numeric display unit, mobile unit, fuel cell formula computer, fuel cell formula digital camera, fuel cell formula Digital Video, fuel cell formula mobile phone.And then motor of the present invention also can be as the motor of various home appliances and electronic equipment.For example in light storage device, magnetic memory apparatus, polygon mirror drive unit etc., motor of the present invention can be used as spindle drive motor.In addition, motor of the present invention also can be used as the motor that vehicle or robot use.
Figure 13 is that the key diagram according to the projecting apparatus of the motor of embodiments of the invention has been used in expression.This projecting apparatus 600 has: three light source 610R, the 610G, the 610B that send red, green, blue three coloured light; Three liquid crystal light valve 640R, 640G, the 640B that this three coloured light is modulated respectively; To the cross dichroic prism 650 that synthesizes of three coloured light after the modulation; Three synthetic coloured light are projected to projection lens system 660 on the screen SC; Be used to cool off the cooling fan 670 of projecting apparatus inside; And the control part 680 of control projecting apparatus 600 integral body.The motor that drives cooling fan 670 can adopt above-mentioned various brushless motors.
Figure 14 (A)～(C) is that the key diagram according to the fuel cell formula mobile phone of the motor of embodiments of the invention has been used in expression.The outward appearance of Figure 14 (A) expression mobile phone 700, the example of Figure 14 (B) expression internal structure.Mobile phone 700 has MPU 710, fan 720 and the fuel cell 730 of control mobile phone 700 work.Fuel cell 730 is to MPU 710 and fan 720 power supplies.Fan 720 be used for for to fuel cell 730 air supplies and from the outside of mobile phone 700 to inner blower, perhaps be used for moisture that fuel cell 730 is produced and discharge from the inside of mobile phone 700.In addition, fan 720 also can be configured in shown in Figure 14 (C) on the MPU 710 with cooling MPU710.The motor of drive fan 720 can adopt above-mentioned various brushless motors.
Figure 15 is that the key diagram as the electric bicycle (electric assisted bicycle) of an example of vehicle according to the motor/generator of embodiments of the invention has been used in expression.The front-wheel of this bicycle 800 is provided with motor 810, and the vehicle frame of below-seat is provided with control circuit 820 and rechargeable battery 830.Motor 810 is used to the driven by power front-wheel of self-charging battery 830, thereby provides power-assisted to advancing.In addition, the electric power of motor 810 regeneration makes rechargeable battery 830 chargings during brake.Control circuit 820 is the driving of control motor and the circuit of regeneration.This motor 810 can adopt above-mentioned various brushless motors.
Figure 16 is that the key diagram according to an example of the robot of the motor of embodiments of the invention has been used in expression.This robot 900 has first and second mechanical arm 910,920 and the motor 930.This motor 930 is used to make second mechanical arm 920 as being driven parts to horizontally rotate.This motor 930 can adopt above-mentioned various brushless motors.
Claims (11)
1. a brushless electric machine is characterized in that,
This brushless electric machine power tool has:
First mobile member, it has magnet assemblies, and this magnet assemblies comprises a plurality of permanent magnets that are maintained under the state that is in contact with one another between the homopolarity; And
Second mobile member, it comprises solenoid, and the relative position of this second mobile member and described first mobile member is variable,
Described magnet assemblies produces the strongest magnetic field along the magnetic direction on the homopolarity contact-making surface that is in contact with one another between the homopolarity and from described magnet assemblies magnetic direction toward the outer side,
Described solenoid is configured to the electric current edge and flows with the direction that described magnetic direction intersects.
2. brushless electric machine as claimed in claim 1 is characterized in that,
This brushless electric machine also has control circuit, and this control circuit is controlled to described solenoid power supply or from described solenoid regenerated electric power,
Described control circuit can be carried out at least a of following control:
(i) regeneration control along with described first mobile member and described second mobile member relatively move along predetermined direction, makes the direct current power regeneration that produces in the described solenoid;
(ii) drive controlling does not change the sense of current of supplying with described solenoid, by supply with the drive current of the first predetermined sense of current to described solenoid, makes described brushless electric machine along predetermined driving direction action.
3. brushless electric machine as claimed in claim 1 or 2 is characterized in that,
Described a plurality of permanent magnet forms flat shape respectively,
Described magnet assemblies be described a plurality of permanent magnet with the perpendicular direction of described homopolarity contact-making surface on the laminate that forms of lamination.
4. brushless electric machine as claimed in claim 1 or 2 is characterized in that,
Described a plurality of permanent magnet forms the shape of fan-shaped or arc respectively,
Described magnet assemblies forms fan-shaped described a plurality of permanent magnets is configured to the discoid shape that forms, and the described a plurality of permanent magnets that perhaps have arc are configured to the circular shape that forms.
5. brushless electric machine as claimed in claim 1 is characterized in that,
Described first mobile member and described second mobile member constitute with the perpendicular direction of described homopolarity contact-making surface on can relatively move.
6. the device with brushless electric machine is characterized in that,
The device of this band brushless electric machine has:
The described brushless electric machine of claim 1; And
The member that is driven by described brushless electric machine driving.
7. the device of band brushless electric machine as claimed in claim 6 is characterized in that,
The device of described band brushless electric machine is an electronic equipment.
8. the device of band brushless electric machine as claimed in claim 7 is characterized in that,
Described electronic equipment is a projecting apparatus.
9. the device of band brushless electric machine as claimed in claim 6 is characterized in that,
The device of described band brushless electric machine is a fuel cell power plant, and this fuel cell power plant has the fuel cell that power supply is provided to described brushless electric machine.
10. the device of band brushless electric machine as claimed in claim 6 is characterized in that,
The device of described band brushless electric machine is a robot.
11. the device of band brushless electric machine as claimed in claim 6 is characterized in that,
The device of described band brushless electric machine is a vehicle.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-259063 | 2007-10-02 | ||
| JP2007259063 | 2007-10-02 | ||
| JP2007259063 | 2007-10-02 | ||
| JP2008-001564 | 2008-01-08 | ||
| JP2008001564A JP4518148B2 (en) | 2007-10-02 | 2008-01-08 | Brushless rotary motor, robot with brushless rotary motor, and moving body with brushless rotary motor |
| JP2008001564 | 2008-01-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101404439A true CN101404439A (en) | 2009-04-08 |
| CN101404439B CN101404439B (en) | 2012-10-31 |
Family
ID=40538339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101491857A Expired - Fee Related CN101404439B (en) | 2007-10-02 | 2008-09-19 | Brushless electric machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4518148B2 (en) |
| CN (1) | CN101404439B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011144006A1 (en) * | 2010-05-18 | 2011-11-24 | Jian Xingliang | Permanent magnet electromagnetic driving device, control method and special control circuit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938601B (en) * | 2012-10-17 | 2014-07-02 | 西安交通大学 | Large-displacement magnetic actuator capable of carrying out position locking by utilizing piezoelectric stack |
| JP7369477B1 (en) | 2022-05-18 | 2023-10-26 | 介▲隆▼興齒輪股▲ふん▼有限公司 | Internal transmission clutch drive device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4908533A (en) * | 1988-01-15 | 1990-03-13 | Shinko Electric Co., Ltd. | Transporting apparatus |
| JP2945441B2 (en) * | 1990-05-29 | 1999-09-06 | 日本電産株式会社 | Motor using permanent magnet |
| JP4472283B2 (en) * | 2003-07-30 | 2010-06-02 | ヤマハ発動機株式会社 | Linear encoder device, linear motor and single-axis robot |
| JP2005306661A (en) * | 2004-04-21 | 2005-11-04 | Seiko Epson Corp | Reformed hydrogen generator |
| WO2005112230A1 (en) * | 2004-05-18 | 2005-11-24 | Seiko Epson Corporation | Motor |
| US20070234552A1 (en) * | 2004-06-21 | 2007-10-11 | Hajime Nozawa | Method for Manufacturing Linear Motor |
| KR101202528B1 (en) * | 2004-09-30 | 2012-11-16 | 티에치케이 가부시끼가이샤 | Rod-type linear motor |
| JP2006115607A (en) * | 2004-10-14 | 2006-04-27 | Seiko Epson Corp | Motor apparatus and projector |
-
2008
- 2008-01-08 JP JP2008001564A patent/JP4518148B2/en not_active Expired - Fee Related
- 2008-09-19 CN CN2008101491857A patent/CN101404439B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011144006A1 (en) * | 2010-05-18 | 2011-11-24 | Jian Xingliang | Permanent magnet electromagnetic driving device, control method and special control circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101404439B (en) | 2012-10-31 |
| JP4518148B2 (en) | 2010-08-04 |
| JP2009106143A (en) | 2009-05-14 |
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Effective date of registration: 20161021 Address after: Tokyo, Japan, Japan Patentee after: GODO KAISHA IP BRIDGE 1 Address before: Tokyo, Japan Patentee before: Seiko Epson Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |