CN204145177U - A kind of electric hub device based on electric motor car - Google Patents
A kind of electric hub device based on electric motor car Download PDFInfo
- Publication number
- CN204145177U CN204145177U CN201420660677.3U CN201420660677U CN204145177U CN 204145177 U CN204145177 U CN 204145177U CN 201420660677 U CN201420660677 U CN 201420660677U CN 204145177 U CN204145177 U CN 204145177U
- Authority
- CN
- China
- Prior art keywords
- electric
- coaxially
- power supply
- unit
- stator unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model discloses a kind of electric hub device of backbone electric motor car, comprise power supply modulator (1), deceleration/torque changing apparatus (2), wheel hub (6), drive actuation means (9a) and at least a set of electric device (3); Described electric device comprises the 3e that coaxially turns, at least one stator unit (3a) and at least one magnetic conductor rotor unit (3b); Described coaxially turning is an annular machinery circle with rotation axis; On described rotor unit is arranged at and coaxially turns; Described stator unit be arranged on coaxially turn inside and corresponding thereto air gap (3d) be not more than 60mm; Described coaxially turning coaxially is arranged with wheel hub, and electric device and deceleration/torque changing apparatus are all arranged in wheel hub; Power supply modulator is by driving actuation means to obtain driving/braking instruction and in the winding output current of corresponding time sequence to stator unit, electric device is realized and wheel hub machine driving by decelerations/torque changing apparatus.
Description
Technical field
The utility model relates to the mains power design field of electric motor car, particularly a kind of power modulation control program that produces periodic timing electric current and the method for designing of electric device that drives.
Background technology
The current main flow in domestic electric bicycle market is adapted Electric Motor Wheel, this kind of Electric Motor Wheel is actual is that motor tradition be arranged on axle is out of shape in wheel hub, rotor extending design be by mechanical device transmission of torque to rim, rotor is extended around the pivoted arm of axle, is conducive to same power consumption and increases torque.Domestic electric machine industry all attempts the technology successful experience being used in electric bicycle, is extended to the hub-type electric machine that electric automobile uses.
Wheel hub motor technology is also known as wheel inner electric machine technology, strict, narrow sense wheel hub refers to the part such as flange, bearing pedestal be connected with power transmission shaft, and the current domestic user wheel rim that refers to, the wheel hub described in this specification contains wheel hub and wheel rim two parts of narrow sense more.Power, transmission and brake apparatus are all incorporated in wheel hub by the maximum feature of wheel hub motor technology exactly, are therefore greatly simplified by the mechanical part of motor vehicle.Wheel hub motor technology is not new things, and as far back as 1900, first Porsche just produced the electric automobile of front-wheel equipment wheel hub motor, and at 20 century 70s, this technology is applied in fields such as Mine haul cars; For the wheel hub motor that passenger car is used, many international automobile industry giants are in exploitation at present, and domestic manufacturers also start to set foot in.
The Electric Motor Wheel that international electric automobile market main flow uses, its structure is except hub body, critical piece generally comprises wheel hub motor, brake disc, brake callipers, Active Suspensions motor, suspension, damping spring etc., weight designs far beyond traditional hub body, and electric automobile requires higher to the deadweight of wheel hub motor, with the data instance of automobile, aluminium alloy wheel hub only light about the 2kg average than conventional steel wheel hub of conventional car, when the speed of a motor vehicle is 60km/h, oil-saving rate can reach 5%-7%, if therefore motor can not subtract pound in multiple, the technical meaning being deformed into wheel hub is very limited, in recent years the technology much attempting traditional structure motor to be simply deformed into wheel hub motor is attempted, effect is all undesirable, only weigh with power density index of unit volume, existing motor does not reach the general designing requirement of wheel hub electric motor far away, uses conventional art to manufacture and design wheel hub electric motor and also has longer road to walk.
Current electric motor car market receives the larger limitation of the way of thinking in technical development thinking; Such as motor manufacture, market generally believes that motor technology is full-fledged, and for the motor of electric motor car special designs is very little, competition mainly concentrates on the control of versatile material and human cost; Such as Electric Machine Control again, in recent years market oneself generally apply PWM, i.e. pulse width modulating technology to control the rotating speed of motor, controlled by its turn-on and turn-off to semiconductor electrical device, but the Energy control thought of this advanced person, because being based upon on motor interior electromagnetic force motion model, the immovable basis of winding construction, technological development income is unsatisfactory.
The permanent-magnet brushless DC electric machine of fast development in recent years, form primarily of motor body, position detector and power inverter controller, general structure is that permanent magnet is arranged on rotor, the arrangement of magnetic pole N/S interleaved, some windings are arranged on stator, position detector forms electronic commutator and replaces mechanical contact reversing arrangement together with inverter controller, and winding energising forms rotating magnetic field and rotor is rotated; Control aspect generally have employed PWQ technology, and the obvious problem of this conventional design is the degree of approximation control of deformed sine wave, although its power is powered adopt the modulation of PWQ technology, control thought method is still limited to the traditional design of motor interior rotating magnetic field.
Utility model content
The purpose of this utility model, be to overcome the defect of existing electric motor car adapted wheel hub electric motor in supply power mode, a kind of power supply plan by power supply modulator, direct current being changed into sequential electric current is provided, the electric wheel hub mechanical device that a kind of internal structure is different from traditional design is provided simultaneously, structure is simple, torque is large, and technique easily realizes.
A kind of electric hub device that the utility model provides, described electric hub device comprises power supply modulator 1, deceleration/torque changing apparatus 2, wheel hub 6, drives actuation means 9a and at least arrange a set of electric device 3; Described power supply modulator comprises power input 1a, sequential current output terminal 1b and driving signal input 1d, the both positive and negative polarity of described power input electrical connection battery pack 8; Described electric device comprises the 3e that coaxially turns, at least one stator unit 3a and at least one rotor unit 3b; Described coaxially turning is an annular machinery circle with rotation axis; On described rotor unit is arranged at and coaxially turns, it is made up of magnetic conductive media solid or software moulding material, and with rotation of coaxially turning; Described stator unit is arranged on the fixed position near coaxial rotating inner edge, and stator unit is not more than 60mm with the relative air gap 3d formed that coaxially turns; Described coaxially turning coaxially is arranged with wheel hub, and electric device and deceleration/torque changing apparatus are all arranged in wheel hub;
The inside winding of the sequential current output terminal electrical connection stator unit of described power supply modulator, driving signal input electrical connection drives actuation means; Described power supply modulator obtains the driving instruction of user by driving actuation means, and in the inside winding output current of corresponding time sequence to stator unit, makes electric device realize driving/braking by deceleration/torque changing apparatus to wheel hub.
Design is replaced each other in the position that described stator unit 3a/ rotor unit 3b can turn at confronting coaxial, coordinates relevant apparatus design also can obtain motorized effect.
Preferably, the rated power of electric hub device described in the utility model is no more than 20KW.
Preferably, the electric device of described electric hub device at least arranges a set of in wheel hub inside.
Described rotor unit 3b comprises on being arranged at and coaxially turning and is entrenched in outer rim of coaxially turning, inner edge or inner and carry out integrated design manufacture with coaxially turning; Rotor unit does not limit shape not affecting under the prerequisite being installed on and coaxially turning; The alternate setting when coaxially turning installation of several rotor units, preferably evenly arrangement.
Preferably, described deceleration/torque changing apparatus 2 forms for some gear combination, its drive input and 3e mechanical attachment of coaxially turning, its transmission output and wheel hub 6 mechanical attachment; Deceleration/torque changing apparatus can independently be arranged, or with coaxially turn or wheel hub integrated setting.
Preferably, described deceleration/torque changing apparatus 2 is arranged at coaxially turns and between wheel hub, and coaxially arranges with the 3e that coaxially turns.
Preferably, described stator unit 3a is formed around the magnetic core of magnetic media material by least one group of good conductor loop, and its Inside coil winding can connect by series, parallel arbitrarily, or by drawing the multi-thread external loop of centre tap composition between different winding; The mode of external electrical connection can be the loop of two lines or multi-thread formation;
Preferably, described stator unit around core arrangement or several combinations, it is preferred for obtaining maximum with its inner winding energising through the magnetic flux of air gap 3d.
Preferably, described electric hub device also comprises sensing device, and described sensing device comprises some sensing unit 3c that can respond to described rotor unit 3b and stator unit 3a relative position; Described sensing unit is electrically connected with the transducing signal input 1c of described power supply modulator; Described electric hub device is at least at the inside of coaxially turning or outer setting one sensing unit;
Preferably, described sensing device comprises the inside winding of stator unit, and described inner winding comprises around the winding of stator unit magnetic core or by the multi-thread external loop be in series between some stator unit windings.
Preferably, described electric hub device also comprises electro-magnetic braking device 9b, described power supply modulator 1 also comprises brake signal input 1e, it is electrically connected electro-magnetic braking device, by electro-magnetic braking device obtain user brake instruction and in the winding output current of corresponding time sequence to the stator unit of electric device.
Described driving actuation means 9a can be set to conventional rotating handles formula, plug-type joystick or other any manual control modes, is set to remote control outside comprising.
In the utility model, DC power supply is converted to sequential electric current by described power supply modulator, and the stator unit in electric hub device is energized and power-off with being limited at the time domain periodic of power supply modulator setting.
In the utility model, the electric motor car of described arbitrary electric hub device comprises the electric motor car of one or more wheel and electronic, autocycle; The wheel of described electric motor car comprises the accurate single-wheel structure of single-wheel and coaxial compact installation two wheel hubs.
The invention also discloses a kind of driving method of aforementioned electric hub device, the method is coaxially turned and hub rotation by power supply modulator output timing Current Control according to the position relationship of described rotor unit 3a and described stator unit 3b;
Described sequential is according to coaxially turning direction of rotation and defining, described sequential electric current combines the rotor unit number on coaxially turning according to the useful effect interval of stator unit electromagnetic field on coaxially turning and arranges several make and break periods T, and each make and break period T comprises power supply time domain and power-off time domain; Described power supply time domain is positioned at
the corresponding time period, described in
the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, described in
for rotor unit overlaps determined around axle tangential direction with electromagnetic force direction suffered by it
value; Power supply modulator 1 not output current in described power-off time domain.
Preferably, the electric current of described power supply time domain not notch shape, frequency and duty ratio.
Preferably, described power supply modulator at least comprises the different period of the day from 11 p.m. to 1 a.m territory of two sections of current amplitudes in power supply time domain, and up time sequence be amplitude diminishes successively, and the amplitude in time domain of powering or its period of the day from 11 p.m. to 1 a.m territory linearly to be successively decreased relation with sequential; Or in 2
kto successively decrease relation, described index K value 0.55 to 0.95; Or be following relation: I
t/ A=(I
0-I
g)
wherein I
0for initial energising intensity, I
gfor the current strength of the end time that is energized.
Preferably, described energising time domain T
1in the magnetic flux density of initial electric current, voltage or stator unit obtain by sensing device rotating speed instantaneous value of coaxially turning and combine the instruction that drives actuation means 9a to provide and adjust.
Preferably, described method also comprises aligning step; Described aligning step be by stator unit and rotor unit periodically relative, the state that is in same normal of trapping gap (
be 0) as benchmark coordinate and fiducial time, when rotor unit goes to reference seat timestamp at every turn, power supply modulator carries out a time and returns 0 calibration and record this cycle time, compare cycle time by going to reference seat target with rotor unit last time, thus know and coaxially turn and the spin cycle time of wheel hub, and control output current.
The invention also discloses the braking method of described electric hub device, the method is at least one time domain away from state according to described rotor unit convergence stator unit, rotor unit relative with the same normal in stator unit place (∠ θ is 0) and rotor unit and stator unit, power supply modulator 1 output timing Current Control is coaxially turned and wheel hub braking by manipulation electro-magnetic braking device 9b;
Described sequential defines according to rotation of wheel direction; Described rotor unit convergence stator unit is
the corresponding time period of state, described in
the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, described in
for rotor unit overlaps determined around axle tangential direction with electromagnetic force direction suffered by it
value.
Preferably, described method also comprises aligning step, and described aligning step will
be 0 as benchmark coordinate and fiducial time, know rotor unit convergence/relatively/away from the location status of stator unit by sensing device.
The logical relation of described power supply modulator to the driving of electric device energising and braking energising be set to or.
Preferably, described output current rate-determining steps comprises:
1) when driving actuation means 9 pairs of power supply modulators 1 without input instruction, power supply modulator dormancy;
2) when driving actuation means 9 to provide assisted instruction, power supply modulator 1 output timing electric current;
3) when electric device rotating speed or energising frequency reach the threshold value of setting, described power supply modulator power-off.
The utility model, for the application characteristic of electric hub device, implants the Technology of NC Programming optimized to electrical source of power, specify that the work-based logics such as the sequential supply power mode of drive current are formed.Because the sensing device of electric hub device inside is always periodically responded to, power supply modulator can sentence the relative position knowing rotor unit and stator unit by generating date, thus stator unit winding is optionally sent to the sequential electric current with regularity.
This sequential supply power mode can bring two obvious energy-saving efficiencies: one is power supply modulator in the time domain periodic ground work that is energized of setting, is not needing the time domain dormancy of work, is both saving electric energy and additionally reduced energising accumulated heat; Two is within the work period of power supply modulator setting, and the rule change of energising intensity in setting, the service efficiency of electric energy is improved further, and energising accumulated heat reduces further.
The utility model has the advantage of: there is the obvious energy-saving effect that sequential power supply control brings, simple with the electric hub device structure that this scheme carries out designing, to may correspond to various electric motor car wheel variation is combined, cost is low, effectively adapts to the designing requirement of high-end energy-saving electric vehicle.
Accompanying drawing explanation
Fig. 1 is a kind of foundation structure schematic diagram of the utility model electric hub device.
Fig. 2 a is a kind of partial structurtes schematic diagram that the utility model is applied to electro-tricycle.
Fig. 2 b is a kind of partial structurtes schematic diagram that the utility model is applied to electric four-wheel vehicle.
Fig. 3 a is that stator unit column type is set to the schematic diagram vertical with normal of coaxially turning around core.
Fig. 3 b is the schematic diagram that stator unit column type is set to around core overlap with normal of coaxially turning.
Fig. 3 c be stator unit matrix around core top just to the structural representation of coaxial rotating inner edge.
Fig. 4 a is relative motion relation and the force direction decomposing schematic representation of electric device inside.
Fig. 4 b is that rotor unit is in the view of coaxial normal with stator unit.
Fig. 5 a is the groundwork logical schematic of power supply modulator.
Fig. 5 b is a kind of block combiner schematic diagram realizing the digital technology logic of power supply modulator.
Fig. 5 c is the work-based logic schematic diagram that power supply modulator sets up electro-magnetic braking device input.
Fig. 6 a is the time diagram of power supply modulator output current in periodicity break-make.
Fig. 6 b is that a kind of two rank constant currents taper off the electric current time diagram of relation.
Fig. 6 c is the time diagram of a kind of first rank current constant, the curved relation of successively decreasing of second order electric current.
Fig. 6 d is the time diagram of a kind of multi-stage current in relation of successively decreasing continuously.
Fig. 6 e is the pulse subset envelope schematic diagram of the curved relation of successively decreasing of a kind of amplitude.
Fig. 6 f is the one energising logical schematic that a corresponding stator unit combines a rotor unit.
Fig. 7 a is a kind of partial structurtes schematic diagram that a stator unit combines 8 rotor units.
Fig. 7 b is the power on/off time domain schematic diagram of swing circle corresponding power modulator of coaxially turning.
Fig. 7 c is the one energising logical schematic that a corresponding stator unit combines 8 rotor units.
Fig. 8 is a kind of partial structurtes schematic diagram that two stator units combine 8 rotor units.
Fig. 9 is a kind of partial structurtes schematic diagram that 12 stator units combine 12 rotor units.
Accompanying drawing identifies:
1, power supply modulator; 1a, DC supply input; 1b, sequential current output terminal; 1c, induced signal input; 1d, train signal input; 1e, brake signal input; 2, deceleration/torque changing apparatus; 3, electric device; 3a, stator unit; 3b, rotor unit; 3c, sensing unit; 3d, air gap; 3e, coaxially to turn; 4, vehicle frame; 5, wheel; 6, wheel hub; 7, wheel shaft; 8, battery pack; 9a, driving actuation means; 9b, electro-magnetic braking device; 10, coaxial normal; 11, to turn tangent line; 12, winding two extreme direction line;
normal angle.
Embodiment
Further the utility model is described in detail below in conjunction with drawings and Examples.
Fig. 1 is a kind of Mechanical Fundamentals structural representation of the utility model electric hub device body, and the obvious difference of this mechanical structure and general hub-type electric machine is:
1, stationary part: electromagnetic force is the separate unit coming from good wire wounded core, this structure is different from the basic technology scheme that the inner winding of conventional electric motor is arranged on stator groove; Described good wire uses copper material or copper-plated metal usually, and magnetic core uses conventional magnetic media material, such magnetizing mediums be known to the skilled person a kind of under magnetic fields internal state change and affect conversely magnetic field exist or distribution material.
2, rotor: rotor unit 3b material adopts the magnetic conductor of non-permanent magnet, and it is arranged on coaxially turning does not exist N/S pole orientation, there is not the alternately arrangement of N/S magnetic pole in several alternate settings yet.
Above foundation structure determines within the scope of the electromagnetic field effect of stator unit winding energising formation, and no matter winding energising is positive and negative direction electric current, and the electromagnetic force that rotor unit is responded to magnetisation and is subject to is all attracting.
As shown in fig. 4 a, a rotor unit is arranged on the outer rim of coaxially turning, a stator unit is arranged on the inner position near its inner rim of coaxially turning, the relative air gap of both motions is enough little, then rotor unit convergence energising stator unit time, electromagnetic attraction can be subject to and make coaxially to turn accelerated motion; Electromagnetic force F suffered by rotor unit can be analyzed to the normal 10 direction F coaxially turning corresponding with axle
10with tangent line 11 direction F
11, wherein contributive around axle to rotor unit is tangential forces F
11.Rotor unit around axle stressed relevant between the active region of stator unit electromagnetic field, to the stator unit of a column around core, its electromagnetism line of force passes through the maximum interval of air gap, corresponding to electromagnetic pole the two poles of the earth line 12 vertical to the corresponding normal 10 of coaxially turning (parallel with corresponding tangent line 11), as shown in Figure 3 a; The two poles of the earth line that column also can be set to electromagnetic pole around core overlaps to the corresponding normal of coaxially turning, and as shown in Figure 3 b, selects when this set-up mode is generally multiple stator unit combination arrangement.For matrix around core, its electromagnetic force, between the active region of rotor unit, is positioned at matrix around core top just to the two ends scope of coaxially turning, as shown in Figure 3 c.
When rotor unit moves around axle on turning, itself and the determined normal of axle and stator unit and the determined normal of axle are a dynamic angle
it is a special state, now angle that its tangential direction around axle convergence stator unit overlaps with suffered electromagnetic force F action direction
for definite value
the useful effect of electromagnetic force suffered by rotor unit is interval, be positioned at
to be 0 state be benchmark ±
in lane place (described ± relatively to define according to the direction of rotation of coaxially turning).Because electromagnetic force F direction suffered by rotor unit is a magnetic interaction hidden variable, and
be aobvious state value, relatively easily obtain induced signal by sensing device location; When
when being 0, F
10for maximum, F
11be 0, now to rotor unit around axle without contribution, as shown in Figure 4 b.When rotor unit because moment of inertia breaks through normal, stator unit energising gives rotor unit and remains suction, coaxially turns and will become retarded motion.To this relative motion state, routine techniques continues to run by controlling electric current paraphase, direct current is modulated to energising direction checker by general use brush or electronic installation, thus supervenes the conventional arts such as current phase, induced current and corresponding phase angle position control thereof; But above model is not suitable for paraphase (magnetic effect and stator unit winding are energized orientation independent).
At rotor unit in axle motion process, F
11and F
10be a pair shifting kinematic variables, its theoretical strong and weak conversion with
for separation, when power supply modulator correspondence exists
state area between be energized, to show as actuating force F
11be main; And when power supply modulator correspondence exists
state area between be energized, to show as braking force F
10be main.The drive scheme principle of the utility model electric hub device uses F
11be be energized between main state area, between all the other state areas, power-off is to make full use of the moment of inertia of coaxially turning, and coaxially turns by the real-time transmission of deceleration/torque changing apparatus, corresponding driving/braking state transfer on wheel hub.
The technical scheme of the utility model electric hub device driving power supply is: power supply modulator is corresponding
state time domain energising, all the other time domain power-off; When main design goal is for economize on electricity, preferably
even
corresponding time domain energising; When needing to make full use of the moment of inertia of coaxially turning, preferably
even
corresponding time domain energising; Cause
state with considerable F
10,
state energising rotates driving and has lost optimal design meaning; The break-make time domain of this drive current described as shown in Figure 6 a, wherein T
1for conduction time, T
2and T
0be power-off time, (T
1+ T
2+ T
0) constitute Timing driver current cycle T.The technical scheme of the utility model electric hub device braking power supply is: the corresponding T of power supply modulator
2and T
0part time domain or all time domain be set to energising, described T
2for rotor unit is corresponding around axle
time domain, T
0for rotor unit is away from the corresponding time domain of stator unit, preferably this time domain braking be because
?
extremely
there is considerable tangential force F in corresponding states
11, unhelpful to Brake Design.
Above-mentioned according to ∠
the switching electric control of corresponding states, in the scope that industrial design error allows, can approximate transform be that relative time controls, because
be 0 state and
state is aobvious state, and power supply modulator is easily sentenced by timing alignment and known
from
to 0, i.e. (T
1+ T
2) time period, as long as setting T
1with T
2relative time, it is right to be namely equivalent to
the switching electricity temporal scalable of corresponding state; Such as control ∠
corresponding
extremely
time domain energising, can briefly be set as: at (T
1+ T
2) time period initial 1/2 time domain energising, 1/2 time domain power-off afterwards; In like manner, as control ∠
corresponding
to the time domain energising of 0, can briefly be set as: at (T
1+ T
2) time period initial 2/3 time domain power-off, afterwards 1/3 time domain energising; (T
1+ T
2) be an amount relevant to rotating speed of coaxially turning, determine with the relative time of sequential current cycle
state can there is deviation when speed change, this deviation can corresponding each cycle
be 0 state carry out time calibration, thus to correct in time in next cycle.
After stator unit setting (comprising combination) scheme is determined,
aobvious state position determined simultaneously, during actual design, normally use
aobvious state position judge the one foundation of the inner relative position of electric device as sensing device; ∠
exact position be one with radian of turning, air-gap separation, stator unit around the value of the parameter correlations such as core shape and arrangement thereof, have multiple theoretical model, should through test inhabitant area during specific design.The corresponding work-based logic exporting driving or stalling current of power supply modulator can be realized by ordinary tap control circuit, and CPU also can be adopted to programme in conjunction with power model group circuit realiration, or the special chip adopting large scale integrated circuit technology to manufacture realizes.
At rotor unit in axle motion, T
1time domain is attended by the F showing as braking force
10, have one during design and drive the optimal selection problem with braking, useful work and power consumption/heat radiation.Due to cannot by F in drive current
10thorough separation, a kind of weakening F
10on the scheme of the potential accumulated heat impact of electric device be: energising intensity/amplitude is set to successively decrease with sequential, comprise and m>=2 subset that energising intensity sequential is successively decreased is set, m can be set to 2,20,3K or 30K etc., the constant current that the constant current that such as, after arranging two sections rank are less than front rank intensity, 5 stage strengths successively decrease successively or the pulse current that 30K stage amplitude is successively decreased continuously; And in the period of the day from 11 p.m. to 1 a.m territory of energising subset, in like manner can be set to intensity/amplitude successively decrease according to sequential, this technical scheme is different from the action effect by driving actuation means 9a to reduce electric current mean intensity, because the optimum amounts of current of manual control always exists real-time micro-deviation, can not in very short time, fall stream in time by due optimal way and fully save electric energy.In the actual manufacture of power supply modulator, the scheme that energising intensity sequential is successively decreased is numerous, and be such as set to sequential linear decrease, also can be set to be successively decreased by 2K relation sequential by maximum, K span is the positive number of 0.55 to 0.95, etc.; Shown in Fig. 6 b is the design that a kind of two rank constant currents are successively decreased with sequential, Fig. 6 c is a kind of first rank current constant, the curved design of successively decreasing of second order electric current, Fig. 6 d is a kind of multi-stage current is the design of successively decreasing continuously, and the amplitude envelope of its multi-stage current intensity is more close to I
t/ A=(I
0-I
g) Sin
preference relation, power savings is better; The amplitude envelope trend schematic diagram that Fig. 6 e successively decreases to be a kind of electric current of the sequential end time that is energized be not 0, therebetween intensity sequential.
Concerning a stator unit 3a combination coaxial turn a upper rotor unit 3b analysis case, rotor unit is not in the electromagnetic force valid interval of stator unit around the axial period most of the time, first should consider the power-off time T in electric current timing cycles T during programming
0, and then preferred power-off time T
2with driving T conduction time
1, improve the utilance of electric energy, Fig. 6 f is a kind of sequential logic schematic diagram driving energising of this analysis case.
Concerning a stator unit 3a combines the analysis case of n rotor unit 3b, stator unit 3a is, with n rotor unit 3b, electromagnetic action occurs at the swing circle π that coaxially turns, power supply modulator preferably sends the energising sequential that n cycle is T, and the correspondence swing circle π that coaxially turns has n T
1, a n T
2and n T
0sequential working logic, this Combination Design proposes high requirement to power supply modulator.Rotor unit not arranges The more the better, and its number n on coaxially turning is limited to the interval corresponding space occupy-place of suffered stator unit electromagnetic force useful effect, otherwise the sequential current cycle that power supply modulator correspondence exports can be overlapping.
Fig. 7 a is the structural representation sketch that a stator unit combines 8 rotor units, stator unit coaxially turn swing circle π respectively with 8 rotor unit generation magnetic action, the theoretical sequential electric current that power supply modulator is corresponding is divided into 8 (T
1+ T
2+ T
0) cycle, Fig. 7 b denote a kind of T of setting be π/8, at T corresponding to direction of rotation of coaxially turning
1, T
2and T
0schematic frequency domain, Fig. 7 c is the energising logical schematic of one of them cycle T.
As shown in Figure 8, inside of coaxially turning is provided with two stator unit 3a, is provided with 8 rotor unit 3b on coaxially turning, and in the swing circle of coaxially turning, power supply modulator will provide 8 cycles for (T for two stator units respectively
1+ T
2+ T
0) sequential electric current, this combination proposes higher designing requirement to power supply modulator.4 stator units can be selected further to combine 10 rotor units, 12 stator units combine 12 rotor units (as shown in Figure 9) etc.In theory when H stator unit and n rotor unit Combination Design, if power supply modulator is to H the discrete power supply of stator unit winding, need corresponding design n*H electric current sequential, i.e. n*H (T
1+ T
2+ T
0) electric current sequential, programming will be very complicated; Therefore in the utility system design of multiple stator unit 3a, preferred H stator unit winding electric tandem compound, or H stator unit winding is divided into some groups of external power supply modulators, the inside windings in series of such as 4 stator units, tap totally three external electric connection of power supply modulators of line are drawn in the middle of series connection winding, the difference of the differetial-potential that technically these three lines also can be utilized to compare between two, as the signal source that a kind of rotor unit and stator unit relative position differentiate, substitute the independent sensing unit arranged.
In theory, also can combine at coaxially turn installation rotor unit and several stator units, though this equivalent arrangements can be implemented technically, but because of the cost of stator unit relatively high, not preferred scheme.
Power supply modulator 1 can realize by ordinary tap circuit design or pulse digit technology, the fundamental functional modules of the latter generally comprises power converting circuit, the microprocessor of internal memory contain working procedure and signal input and output circuit, the sequential electric current of driver module output is correspondingly controlled by sensing unit 3c feedback signal, Dynamic controlling is carried out to electric device 3, its work-based logic such as Fig. 5 a shows, and Fig. 5 b is a kind of block combiner schematic diagram realizing the digital technology logic of power supply modulator basic function.
The work-based logic transformation directive signal of power supply modulator normally obtains from the sensing unit being connected in coaxially turn inside or outside, sensing unit is not limited to use magnetoelectric induction winding or Hall element, also photoelectric encoder etc. can be used, when rotor unit is around axle 7 cycle movement, the rate of change that sensing unit can obtain electric current (voltage) feeds back to power supply modulator, and power supply modulator is sentenced according to this induced signal the relative position of knowing rotor unit 3b and correspondingly sent electric current sequential.According to the operating accuracy of sensing unit 3c and reliability requirement, sensing unit 3c can coaxially turn inside or outer setting one or several, even be deformed into become the mode of multi-thread circuit feedback from above-mentioned multiple stator unit windings in series and use stator unit 3a Double-wire ring around winding feedback mode obtain work-based logic transformation directive signal, now the induced signal input 1c of power supply modulator is corresponding built-in, and its response process proposes high requirement to the working procedure logic of power supply modulator 1.Due to the development of large scale integrated circuit technology, the programming technique realizing the conversion of above-mentioned work-based logic is that industry professional person is known, and institute is it is to be understood that sequential current cycle, energising subset time domain and the basic design parameter such as amplitude change and power-off time domain therebetween.
To sum up, described power supply modulator is a logic power switching system comprising the design of two-stage period/frequency, and one is T
1the period/frequency design of m subset in energising time domain, the amplitude that this frequency is more high is more beneficial to approaching theory economize on electricity optimization is successively decreased relation; Two is sequential power cycles/frequencies, reflect unit interval internal stator unit 3a to the energization action number of times of rotor unit 3b, this time sequence frequency remote definition rotating speed of electric hub device and the energising amplitude required for stator unit or electromagnetic force (coming from power supply modulator to be energized to the winding of stator unit), because T
1the average amplitude of energising time domain is larger, and unit interval internal stator unit energising is larger to the active force of rotor unit, effect number of times is more, and the rotating speed that its result reflects electric hub device is faster.The sequential power frequency that power supply modulator exports, rotates the implicit (T of one-period with coaxially turning
1+ T
2+ T
0) sequential effect number of times, energising mean intensity and electric hub device rotating speed be mutually corresponding all physical quantity relations, after power supply modulator many imposes a condition and enter logic working state, control sequential energising frequency and namely control the speed of a motor vehicle.This manually operated electric hub device rotating speed is by driving the input 1d of actuation means 9a electric connection of power supply modulator to realize.
The utility model electric hub device can use T
2electromagnetic force braking function is set up in time domain energising, and the corresponding brake signal input 1e set up of power supply modulator is electrically connected with electro-magnetic braking device 9b, as shown in Figure 5 c; When electric hub device is used for electric motor car, it brakes not only T
2time domain starts energising, and preferred T
0part or all of time domain corresponding be transformed to energising strengthen braking effect, from the design concept of safety first, need not for braking energising power saving too much consider; Electro-magnetic braking device 9b can be set to a continuous or multistage rheostat, and its function is the stalling current intensity controlling power supply modulator output, and stalling current is larger, and electromagnetic braking effect is better.
What stator unit 3a was connected in coaxially turn 3e inside or outside and solid mechanical device arranges main points, the relative air gap 3d that will make rotor unit that magnetic action effectively occurs with its formation in Periodic Rotating, this air gap is that stator unit transmits the energy channel of electromagnetic force to rotor unit, air gap is more little is more conducive to magnetic energy effect transmission, but the too small easy generation Mechanical Contact of air gap, needs comprehensive rigidity and the machining accuracy of holding material during design; Described inner solid mechanical device of coaxially turning, is similar to the stator of conventional motors.
Described deceleration/torque changing apparatus 2 is generally formed by some gear combination, the rotating speed changing machine driving input or the technical goal changing torque can be reached by the combination of some gears, the design of deceleration/torque changing apparatus is more, the 3e that preferably and coaxially turns coaxially arranges and is arranged at and coaxially to turn and between wheel hub, as shown in Figure 1.Deceleration/torque changing apparatus both can independently be arranged, also can with coaxially to turn or electric device entirety carries out integrated design, be even arranged at and coaxially turn and the local location of endless belt between wheel hub, or be deformed into and wheel hub integrated design; But this kind of design arranging deceleration/torque changing apparatus at the inner local location of wheel hub, need configure the device such as suspension, damping spring adjustment center of gravity, not preferred technical scheme usually in wheel hub.
The traditional product of described driving actuation means 9a is rheostat or the potentiometer of a deformation design, artificial easily manipulation, with technical development in recent years, the special actuation means be much based upon on photosensitive, Hall control principle basis reaches its maturity, this series products is generally designed to conventional rotating handles formula, also can be designed to plug-type joystick or other any manual control modes, comprise remote control.The controlling functions such as illuminating lamp, turning/stop, tail and number plate light, sound ring that electric motor car routine uses, generally be made up of the switch of several electric connection of power supply, such mains switch can be arranged separately, also correlation function can be implanted power supply modulator shared data bus and unify programming realization.
The utility model electric hub device is with electric motor car for stating example, but its application is not limited to electric motor car, is applicable to all electronic rotation systems.Described preference is only recommendation, and some technical schemes may be combined with and use, partly can use and also can add other mature technologies.As long as according to the magnetic current energy feature of electric device 3, by the sequential electric current that can accurately control power supply modulator design, the basic fundamental target of the utility model scheme can be realized.
To the professional person that electric motor car and wheel hub motor technology are comparatively understood in depth, be all not difficult on scheme basis described in the utility model, be out of shape with drawing inferences about other cases from one instance and implement the utility model content.The organization plan of electric hub device described in the utility model and the distortion of derivative technology thereof are implemented, and all should be put into protection range of the present utility model.
Embodiment 1,
An electric hub device for assistance type electro-tricycle, is arranged at front-wheel, and as shown in Figure 2 a, wheel hub 6 outer rim girth is 1000mm to supporting vehicle frame 4, and battery pack 8 selects plumbic acid colloid battery to be arranged on the inside of vehicle frame.The 3e that coaxially turns of electric device 3 is the annular titanium-aluminium alloy circle that has rotation axis, girth is 300mm, and the outer rim of alloy ring is connected a rotor unit 3b, on the inner mechanical device be connected with dead axle of alloy ring, installs a stator unit 3a; Coaxially turn 3e and wheel hub 6 is coaxially installed, and is provided with a deceleration/torque changing apparatus 2 by some gear combination therebetween, as shown in Figure 1; Electric device is realized and wheel hub machine driving by deceleration/torque changing apparatus, and the speed reducing ratio of deceleration/torque changing apparatus is 10:1.
The rotor unit 3b Material selec-tion market of electric device is easy to the ferromagnet purchased, and be processed into cell type junior unit, the Design of length of this junior unit is 10mm, and width gets maximum when not affecting installation, snugly fits into the outer rim of the 3e that coaxially turns, stator unit 3a selects market to be easy to the channel magnet purchased around core, there is more magnetic domain in this ferromagnet inside, under outside magnetic field effect, magnetic domain easily turns to and produces the complementary field consistent and much better than with outer magnetic field direction, spill is processed into and corresponding arc of coaxially turning around core bottom, coil windings is formed around spill magnetic core 50 circle by the copper cash of a diameter 0.65mm, Installation features: fixed position stator unit being arranged on coaxially turn inside close its inner rim 8mm, captive screw is fixed, spill around core top just to coaxial rotating inner edge (as shown in Figure 3 c), two ends correspondence is coaxially turned occupy-place 32 degree of mechanical angles.
The maximum speed per hour of setting electro-tricycle is about 20km/h and 5.6m/s (5.6 turns/s), and meter is picked up the car and taken turns corresponding spin cycle time is 180ms; The 3e that coaxially turns is 56 turns/s through the speed limit of deceleration/torque changing apparatus 2 correspondence, corresponding spin cycle time 18ms, i.e. (the T that powers of power supply modulator 1 pair of electric device
1+ T
2+ T
0) timing cycles minimum value T is 18ms; Power supply modulator 1 is realized by conventional electrical control circuit, design maximum overload capacity 650W, T in setting timing cycles
1: (T
2+ T
0) be 1:35, the T that the timing cycles that namely speed limit is corresponding is powered
1value 0.5ms, all the other 17.5ms are off-position; The current strength that the corresponding maximum speed per hour of power supply modulator exports is 22A when rated voltage is set to 24V, and this current value to design in conjunction with electric device 3 according to complete vehicle weight, the specified body weight of driver and through test inhabitant area.
The power input 1a of power supply modulator 1 is electrically connected the both positive and negative polarity of battery pack 8, Timing driver current output terminal 1b is electrically connected the coil windings of stator unit 3a, induced signal input 1c is electrically connected sensing unit 3c, and train signal input 1d is electrically connected and drives actuation means 9a.Sensing unit 3c is made up of a magnetoelectric induction winding, by captive screw, sensing unit is connected in the position of coaxially turn 3e inside close its inner rim.
The external driving actuation means 9a of this electro-tricycle adopts the rotating potentiometer of stepless variable resistance, Conventional hand grips formula, by the Aided design with electronic control circuit, control the current strength of power supply modulator 1 output in real time by changing resistance, thus control the normal speed of a motor vehicle of electro-tricycle.The control unit 2 of the power on/off such as illuminating lamp, turning/stop, tail and number plate light, the sound ring manipulation that electric motor car routine uses, all adopts commercial products supporting.
The work-based logic that power supply modulator 1 sets is: relative with stator unit 3a and rotor unit 3b periodicity trapping gap 3d, be in same normal 10 (
be 0) state be designated as benchmark coordinate and fiducial time, when manpower assistant or drive actuation means 9a to provide drive singal and sensing unit 3c perception rotor unit 3b goes to around axle 7
reach
in the moment (about 16 degree, respective rotor unit enters spill initial time relative within the scope of core two ends, and the meticulous moment is as the criterion with experiment value) of position, power supply modulator starts output 15A electric current; When rotor unit 3b goes to reference seat timestamp around axle at every turn, power supply modulator carries out a time and returns 0 calibration and record this cycle time, compare cycle time by going to reference seat target last time with rotor unit, know the instantaneous value of this cycle time, and according to real-time status, further work logic is judged: if drive actuation means 9a to power supply modulator without input instruction, power supply modulator dormancy; If the instruction driving actuation means 9a to provide accelerates, then power supply modulator goes to around axle at next cycle respective rotor unit 3b
in the moment of position, perform T
1with (T
2+ T
0) ratio is the switching electricity sequential of 1:35, the mean intensity of in real time energising provides by driving actuation means; If drive actuation means to maintain the state of power supply modulator output current close to 22A, the logic state of above-mentioned setting will make the sequential of power supply modulator energising frequency more and more higher, in corresponding wheel 5 each cycle, stator unit 3a gets more and more to the electromagnetic force number of times of rotor unit 3b, and the speed of a motor vehicle is more and more faster; When sequential energising frequency higher than set 1/18ms (correspondence coaxially turn rotating speed 56 turns/s) or the continuous 3s of power supply modulator output current maintains the state of 22 A time, the unconditional power-off of power supply modulator and reach the design object of automatic speed-limiting.
Embodiment 2,
The sequential electric current of the power supply modulator of embodiment 1 electric hub device is changed into: T
1energising time domain is set to the mutually corresponding constant current of two sections of time and intensities, and feature is the current strength I of rear 1/2 time
2/ A is front 1/2 time current intensity I
1the half of/A; Power supply modulator work-based logic is adjusted to: when power supply modulator is notified to start energising by sensing unit 3c, with I in 4s
1intensity 16A (corresponding I
2for 8A) for benchmark, corresponding rotation of wheel cycle every next cycle strengthen 12% output intensity automatically, the relative scale of two sections of energising time domains is 1:1; From actuation means further work to be driven instructions such as 5s are initial: if drive actuation means 9a without input instruction, power supply modulator dormancy; If the instruction driving actuation means 9a to provide accelerates, then power supply modulator is when next cycle starts energising, performs T
1with (T
2+ T
0) ratio is 1:35 and I
1with I
2current strength 2:1, conduction time ratio 1:1 electric current sequential, the mean intensity of in real time energising provides by driving actuation means.
Remaining design is identical with embodiment 1, and the present embodiment, because being designed to slow acceleration mode, obtains level and smooth acceleration effect, adapts to electric motor car with the designing requirement of safety first.Stator former unit winding starts the moment of energising, also can change into rotor unit 3b around axle extremely
reach 15.5 degree or 14.5 degree of corresponding states.
Embodiment 3,
The basis of embodiment 2 electric hub device is optimized the power-up procedure of power supply modulator: by T
1energising time domain is set to the electric current that 5 periods of conduction time, identical but current strength rule was successively decreased, and 5 sections of energising intensity press K*I
1the linear relationship hierarchical subtractive clustering of/A, degradation factor K is 0.70, namely works as T
1when the initial current intensity of 5 periods of conduction times of sequential is 22.0A, at T
1the rule of current strength in sequential automatically in 22.0A, 15.4A, 10.8A, 7.6A, 5.3A is successively decreased.The design that this power-up procedure logic uses conventional electronic circuitry to realize controlling is more complicated, and manufacturing cost is also higher, adopts ripe pulse digit technology to realize power supply modulator.
Power supply modulator nucleus module comprises the driver module of a conventional CPU and design power 500W, its refinement work-based logic as shown in Figure 5 b, wherein impulse transfer modulate circuit mainly completes and pulse signal is converted to step signal, pulse signal generator mainly produces required pulse signal, secondly through the pulse of differential circuit output spike, then through the negative half period filtering of amplitude limiter circuit by spike, only remaining positive axis spike, carry out integration with the integrating circuit of integrated transporting discharging composition to add up, add voltage comparator and control circuit, just constitute complete step pulse signal, parameter adjustment is carried out to each element of circuit, thus be met the step signal of work-based logic requirement.Power supply modulator 1 is at T
1in energising sequential, by the pulse current that control chip (CPU) makes driver module produce a series of amplitude to successively decrease with sequential, pulse frequency 30KHz, all the other and embodiment 2 are roughly the same, acquired power performance is similar to Example 2, but power savings is relatively good.
Embodiment 4,
The pulse subset amplitude of embodiment 3 electric hub device changed and be set to successively decrease continuously, when namely the corresponding T1 starting current of power supply modulator is 22A, the amplitude envelope trend of energising time domain is in (22-5.3)
rule successively decrease.For improving the functional reliability of position signalling sensing, sensing unit is set to two by the present embodiment.
The present embodiment to successively decrease relation because pulse subset envelope that power supply modulator 1 exports have selected the sequential more optimized, and the saving electric energy effect that electric motor car travels is better than embodiment 3.Electric hub device described in the present embodiment, also can correspondingly be arranged on the front-wheel of two wheeler, trailing wheel and single block.
Embodiment 5,
Use T
2time domain energising sets up electromagnetic force braking function to the electric hub device of embodiment 4.
Power supply modulator corresponding increase brake signal input 1e is electrically connected electro-magnetic braking device 9b, and as shown in Figure 5 c, electro-magnetic braking device is ten grades of rheostats; When Artificial Control electro-magnetic braking device sends brake signal, power supply modulator cuts off T
1the electric current of corresponding sequential, starts T
2time domain is energized, and this braking energising time domain is set in sensing unit 3c perception rotor unit 3b around axle extremely
for
arrive
it is the time period of 0 degree of position; This braking energising time domain T
2also can corresponding cycle sequential and being briefly set as: power supply modulator is at (T
1+ T
2) in electric current sequential, initial 2/3 time domain power-off, afterwards 1/3 time domain energising.
The stalling current that power supply modulator exports, ten grades of resistance shelves of corresponding electro-magnetic braking device 9b are set to ten grades of intensity, and the current strength that setting exports is: chopped-off head 5A, final stage 16A, ten grades of electric currents are on average arranged.
The present embodiment electric hub device is owing to having additional the soft braking function of electromagnetism, and slowing effect is mild.
Embodiment 6,
The brake logic of embodiment 5 electric hub device is optimized for further: power supply modulator starts T
2while time domain energising, by T
0the work-based logic of part time domain is synchronously transformed to energising, this T
0numerical value and the (T of part time domain
1+ T
2) equal, T
0energising Startup time with
it is 0 beginning timing; Power supply modulator is at this T
0the current strength that part time domain exports and T
2time domain is identical, and this scheme can strengthen electromagnetic force braking effect.
The present embodiment adds rotor unit and stator unit to the braking of stator unit winding energising and is in time domain away from state; This braking energising time domain T
2also can corresponding cycle sequential T and briefly setting: at (T
1+ T
2+ T
0) in sequential, initial 1/3 time domain power-off, 2/3 time domain reads aloud electricity afterwards.
Aforementioned braking time domain
for
the time period of position also can change to
the time period of position.
Embodiment 7,
The electric hub device of the extraordinary two wheeler of coaxial parallel installation two wheel of configuration, wheel hub outer rim girth is 1500mm, and battery pack 8 selects plumbic acid colloid battery, is arranged on the ad hoc position of vehicle frame 4 of bottom, compartment.
In each electric hub device, the 3e that coaxially turns of electric device 3 is the annular alloy steel ring that has rotation axis, girth is 500mm, steel ring inner homogeneous is chimeric 8 rotor unit 3b respectively, on the inner mechanical device be connected with dead axle of steel ring, install one with the stator unit 3a of steel ring inner edge spacing 11mm; Coaxially turn and to install with wheel hub 6 concentric, a deceleration/torque changing apparatus 2 by some gear combination is set therebetween, deceleration/torque changing apparatus with coaxially to turn and wheel hub 6 concentric is installed, the speed reducing ratio of deceleration/torque changing apparatus is 9:1.
The present embodiment underlying parameter designs with reference to embodiment 1 and adjusts, the coil windings of stator unit is adjusted to 60 circles, the mechanical angle of corresponding occupy-place of coaxially turning is 45 degree, continue to select speed limit 20Km/h and 5.6m/s (3.7 turns/s), the speed limit of coaxially turning through deceleration/torque changing apparatus 2 correspondence is 33.3 turns/s, spin cycle time corresponding to speed limit got by meter is 30ms, because of the stator unit that is arranged on 3e outside of coaxially turning coaxially to turn in a swing circle respectively with 8 rotor unit generation electromagnetic forces, (the T that power supply modulator is powered to electric device
1+ T
2+ T
0) the corresponding speed limit value of timing cycles is 3.75ms, chooses (T
1: T
2: T
0) be 0.675:1.2:1.875; Power supply modulator selects large scale digital logic switch integrated circuit to realize, design maximum overload capacity 1200W.
The work-based logic of power supply modulator setting and the method for embodiment 1 are roughly the same, by the sequential energising frequency of period regulation record, the real-time speed of a motor vehicle can be known, when sequential energising frequency is higher than 1/3.75ms (correspondence coaxially turn rotating speed 33.3 turns/s), the unconditional power-off of power supply modulator and reach the design object of automatic speed-limiting.
The present embodiment uses two cover electric devices to drive two wheels, and electrical vehicular power is doubled; Because two electric hub devices are coaxially installed on the back rest, during turning driving, there is differential, therefore should design speed limit especially, or by the differential program to the built-in turning driving of power supply modulator 1, make turning driving more stable.
Embodiment 8,
Being set up by the stator unit 3a of embodiment 7 electric hub device is two, and the titanium-aluminium alloy 3e that coaxially turns is fitted together to the rotor unit 3b of 8 alternate settings in inside with integrated forming technique.Changing into around core of two stator units is cylindrical, and umber of turn is all 60 circles, cylindrical vertical to the normal 10 of coaxially turning corresponding around core two ends during installation, as shown in Figure 3 a; Two stator units are arranged on the center of the inner plane normal of the 3e that coaxially turns, the annular position near coaxial rotating inner edge 8mm, the mechanical spacing that technical requirement and direction of rotation adjoin rotor unit 3b is identical, the winding electric of two stator units is connected in series, at common 8 rotor unit generation electromagnetic forces equally distributed with it in 3e swing circle of coaxially turning; Power supply modulator correspondence spin cycle time of coaxially turning is identical.
In the present embodiment, power supply time domain is driven to be defined as
the corresponding time period from 22.5 degree to 10 degree, braking power supply time domain is defined as
from the time period of 7 degree to 0 degree; Because have employed two stator unit 3a, power effect doubles.
The present embodiment two stator unit 3a also can change into and installing at both sides space symmetr of turning, and winding electric is connected in series, and electromagnetic pole direction is identical.
Embodiment 9,
Be arranged on the electric hub device of electric four-wheel vehicle two trailing wheels, the mechanical device that the 3e that coaxially turns is inner ad hoc arranges 12 stator unit 3a, selecting around core of stator unit is cylindrical, umber of turn is identical with embodiment 7, cylindrically during installation to overlap to the normal 10 of coaxially turning corresponding around core two ends line 12, as shown in Figure 3 b, and be uniformly distributed near the annular position of coaxial rotating inner edge 7mm; The titanium-aluminium alloy 3e that coaxially turns is fitted together to the rotor unit 3b of 12 alternate settings in inside with integrated forming technique.
The winding electric of 12 stator units is connected in series, tap is drawn in the middle of the winding of every 4 stator units, external formation 3 electric external loops of line composition (being similar to the Δ shape connection of the inner winding of conventional motors), at 12 rotor unit generation electromagnetic forces equally distributed with it in 3e swing circle of coaxially turning; The electric connection mode correspondence of power supply modulator is designed to three wire circuit, time sequential pulse electric current mean allocation in each loop that three lines are formed of its corresponding output; What the present embodiment can utilize the external two-phase of stator unit 3a winding to feed back further compares differetial-potential difference between two, as the signal source that a kind of interior location differentiates, substitutes the independent sensing unit arranged.
The driving of the present embodiment, brake control mode and stator former unit are arranged at coaxially turns inner Method And Principle roughly the same, drives power supply time domain to be defined as
from
arrive
the corresponding time period, can briefly be set as: at (T
1+ T
2+ T
0) in sequential, initial 1/6 time domain energising, 5/6 time domain power-off afterwards; Braking power supply time domain is defined as
from
to 0 degree and rotor unit away from the corresponding (T of stator unit
1+ T
2) time period, can briefly be set as: at (T
1+ T
2+ T
0) in sequential, initial 1/3 time domain power-off, afterwards 2/3 time domain energising.
The present embodiment is because have employed 12 stator unit combinations, and power effect strengthens greatly.
Embodiment 10,
In embodiment 1 spill around the top of core just to coaxially turning in the design basis of 3e inner edge, by spill around the top of core against rotation of wheel direction deflection 5 degree of angles, all the other and embodiment 1 are roughly the same.The present embodiment is because forming the deflection angle of electromagnetic field after the winding energising of stator unit 3a inside, more meet rotor unit 3b with dynamic model periodically attracting in 3e rotation of coaxially turning, acquired implementation result is better than embodiment 1.
Embodiment 11,
Sensing unit 3c described in embodiment 1 is the 3e inside of coaxially turning being connected in electric hub device, sensing unit 3c is arranged on the vehicle frame 4 of front-wheel by the present embodiment, annular region any part in front-wheel 5 cycle in the face of sensing unit 3c, one piece of permanent magnet is set specially, make the induction winding of sensing unit 3d periodically obtain induced signal with wheel 5 rotates, acquired implementation result and embodiment 1 are roughly the same.
Embodiment 12,
The stator unit winding of embodiment 1 is changed into two-wire wounded core, two windings are formed around spill magnetic core 50 circle by the copper cash of two diameter 0.65mm, one of them winding electric connects power supply modulator 1 and powers for power, another winding is used as to substitute the independent sensing unit arranged, as the judgment signal source of rotor unit interior location.
Can the further optimal design of winding of stator unit be in addition: the power copper cash of winding by a diameter 0.65mm of powering encloses around spill magnetic core 50 and form, sensing winding is formed around spill magnetic core 15 circle by the copper cash of a diameter 0.18mm, more can save copper material.
Embodiment 15,
By the electric hub device of aforementioned any embodiment, in the electric motor car that conventional four-wheel electric motor car or more wheel is arranged, corresponding at least one take turns and install electric hub device described in the utility model additional, make electric hub device described in the utility model become one of main power driven system or auxiliary power driven system, multipath effectively saves electric energy.
Above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or equivalent replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. an electric hub device, it is characterized in that, described electric hub device comprises power supply modulator (1), deceleration/torque changing apparatus (2), wheel hub (6), drives actuation means (9a) and at least arrange a set of electric device (3); Described power supply modulator comprises power input (1a), sequential current output terminal (1b) and driving signal input (1d), the both positive and negative polarity of described power input electrical connection battery pack (8); Described electric device (3) comprises coaxially turn (3e), at least one stator unit (3a) and at least one rotor unit (3b); Described coaxially turning is an annular machinery circle with rotation axis; On described rotor unit is arranged at and coaxially turns, it is made up of magnetic conductive media solid or software moulding material, and with rotation of coaxially turning; Described stator unit is arranged on the fixed position near coaxial rotating inner edge, and stator unit is not more than 60mm with the relative air gap (3d) formed of coaxially turning; Described coaxially turning coaxially is arranged with wheel hub, and electric device and deceleration/torque changing apparatus are all arranged in wheel hub;
The inside winding of the sequential current output terminal electrical connection stator unit of described power supply modulator, driving signal input electrical connection drives actuation means.
2. electric hub device according to claim 1, it is characterized in that, described deceleration/torque changing apparatus (2) comprises some gear combination, its drive input and (3e) mechanical attachment of coaxially turning, its transmission output and wheel hub (6) mechanical attachment; Deceleration/torque changing apparatus is independently arranged, or with coaxially turn or wheel hub integrated setting.
3. electric hub device according to claim 1, it is characterized in that, described stator unit (3a) is formed around the magnetic core of magnetic media material by least one group of good conductor loop, by connected in series or in parallel between the winding that its several combination obtains, or by drawing the multi-thread external loop of centre tap composition between different winding.
4. electric hub device according to claim 1, it is characterized in that, described electric device also comprises sensing device, and described sensing device comprises some sensing units (3c) responding to described rotor unit (3b) and stator unit (3a) relative position; Described sensing unit is electrically connected with the transducing signal input (1c) of described power supply modulator; Described electric device is at least at the inside of coaxially turning or outer setting one sensing unit.
5. electric hub device according to claim 4, it is characterized in that, described sensing device comprises the inside winding of stator unit (3a), and described inner winding comprises around the winding of stator unit magnetic core and by the multi-thread external loop be in series between some stator unit windings.
6. electric hub device according to claim 1, it is characterized in that, described electric hub device also comprises electro-magnetic braking device (9b), and described power supply modulator also comprises brake signal input (1e), its electrical connection electro-magnetic braking device (9b).
7. the electric motor car containing the arbitrary electric hub device of claim 1 ~ 6, described electric motor car comprises the electric motor car of one or more wheel and electronic, autocycle; The wheel of described electric motor car comprises the accurate single-wheel structure of single-wheel and coaxial compact installation two wheel hubs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660677.3U CN204145177U (en) | 2014-11-06 | 2014-11-06 | A kind of electric hub device based on electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660677.3U CN204145177U (en) | 2014-11-06 | 2014-11-06 | A kind of electric hub device based on electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145177U true CN204145177U (en) | 2015-02-04 |
Family
ID=52421841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420660677.3U Expired - Fee Related CN204145177U (en) | 2014-11-06 | 2014-11-06 | A kind of electric hub device based on electric motor car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204145177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990981A (en) * | 2015-02-05 | 2016-10-05 | 刘粤荣 | Pedal-controlled electric apparatus, electric vehicle, and method of driving, braking and range extending of the same |
| CN114131060A (en) * | 2021-12-29 | 2022-03-04 | 南方科技大学 | Aerostatic high-speed electric spindle based on titanium-aluminum alloy mandrel |
-
2014
- 2014-11-06 CN CN201420660677.3U patent/CN204145177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990981A (en) * | 2015-02-05 | 2016-10-05 | 刘粤荣 | Pedal-controlled electric apparatus, electric vehicle, and method of driving, braking and range extending of the same |
| CN114131060A (en) * | 2021-12-29 | 2022-03-04 | 南方科技大学 | Aerostatic high-speed electric spindle based on titanium-aluminum alloy mandrel |
| CN114131060B (en) * | 2021-12-29 | 2022-11-11 | 南方科技大学 | Aerostatic high-speed electric spindle based on titanium-aluminum alloy mandrel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204118953U (en) | A kind of electric hub device based on electric motor car | |
| CN204145177U (en) | A kind of electric hub device based on electric motor car | |
| CN204145171U (en) | A kind of electric device | |
| CN204145178U (en) | A kind of electric hub device based on electric motor car | |
| CN204110304U (en) | A kind of energy-saving electric vehicle | |
| CN204334255U (en) | A kind of hub for electric vehicle system and electric motor car thereof | |
| CN204310010U (en) | A kind of battery-driven car controlled based on magnetic current | |
| CN204383162U (en) | A kind of electric hub device and the battery-driven car containing this device | |
| CN204216818U (en) | A kind of electric device and the electric motor car containing this electric device | |
| CN204271973U (en) | A kind of sequential operated type electric device and electric motor car | |
| CN105620272A (en) | Magnetic current controlling electric hub device and driving and braking methods thereof | |
| CN105634195A (en) | Electric vehicle-based electric wheel hub device and driving and braking method thereof | |
| CN204216717U (en) | A kind of electric device based on magnetic current control and electric motor car | |
| CN204197211U (en) | A kind of LEV (Light Electric Vehicle) | |
| CN204205810U (en) | A kind of wheel hub integrated electric device | |
| CN105620270A (en) | Timing sequence power supply hub one-piece electric device and driving and braking methods thereof | |
| CN105634196A (en) | Electric vehicle-based electric wheel hub device and driving and braking method thereof | |
| CN204452075U (en) | A kind of electric vehicle power system and battery-driven car thereof | |
| CN204206058U (en) | A kind of electric motor car of sequential power supply control | |
| CN105634194A (en) | Electric vehicle-based electric wheel hub device and driving and braking method thereof | |
| CN105811691A (en) | Electric vehicle wheel hub system and driving, braking and electric energy compensation method for the same | |
| CN105634377A (en) | Electric vehicle adopting timing sequence power supply control and driving and braking method | |
| CN105564582A (en) | Light electric vehicle and driving and brake method thereof | |
| CN204605504U (en) | A kind of hub for electric vehicle system and battery-driven car | |
| CN105577070A (en) | Electric device and driving and braking method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20191106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |