CN1169278C - Starting brushless DC magnetor for motorcycle - Google Patents
Starting brushless DC magnetor for motorcycle Download PDFInfo
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- CN1169278C CN1169278C CNB021002746A CN02100274A CN1169278C CN 1169278 C CN1169278 C CN 1169278C CN B021002746 A CNB021002746 A CN B021002746A CN 02100274 A CN02100274 A CN 02100274A CN 1169278 C CN1169278 C CN 1169278C
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Abstract
The present invention discloses a DC brushless starting magneto for a motorcycle, which comprises a motor base, an outer rotor flywheel, an inner stator and a starting drive circuit, wherein the present invention adopts ferrite magnetic steel materials with low price, and three-phase starting full pitch coil assemblies with span slots and single-phase power generation full pitch coil assemblies with span slots are respectively arranged in coil slots of the inner stator. In each three-phase starting full pitch coil assembly with span slots, coils with the same phase under each pole have the same turn number and are arranged in the same slot in a layered mode, and the coils are in parallel connection or in series connection; coils with different phases are arranged in different slots and are in superposition arrangement in a layered mode, and the coils with all the phases are in parallel connection or in series connection; the series connection turn numbers of all parallel branches of windings with all phases are equal. The single-phase power generation full pitch coil assemblies with span slots are arranged on the outer layers of the three-phase starting full pitch coil assemblies with span slots, and the single-phase power generation full pitch coil assemblies are in series connection. The cost of the present invention is greatly reduced under the same motor starting performance, so the present invention has high practicality and high economic benefit.
Description
Technical field
The invention belongs to the motorcycle electric appliance class, relate in particular to starting brushless DC magnetor for motorcycle.
Background technology
Actuating motor and magneto are respectively the motors of two platform independent on the motorcycle of electricity starting at present.Actuating motor is for there being the brush permanent magnet direct current motor, the working speed height, but need through the work that links of reducing gear and freewheel clutch and engine shaft.The external rotor flywheel and the engine shaft of magneto directly link, and play the effect of generating electricity and the igniting triggering signal being provided to engine igniting system.When actuating motor starts motorcycle engine, at first, because of linking complex structure through reducing gear and freewheel clutch and engine shaft; Secondly, when freewheel clutch skids, can have a strong impact on the starting characteristic of motorcycle; Moreover actuating motor is brush-commutated because of passing through, and wear of brush is serious, needs often to safeguard.
Existing a kind of starting brushless DC magnetor unites two into one starting brushless DC motor and magneto.It has saved reducing gear and freewheel clutch, has simplified engine structure, has improved reliability of operation.But it adopts short distance to concentrate the winding scheme in order to reduce the winding overhang height in design, promptly under every pair of magnetic pole three teeth are arranged, each tooth of every phase of three-phase, and nested one concentrates winding mutually on each tooth, and spatially there is not the overlapping region in three phase windings.Though the motor production and processing technology is simple, the winding actual stride is 120 ° of electrical degrees, and winding coefficient is lower; It is 60 ° of electrical degrees that every phase winding basic electromagnetic is changeed the wideest apart from the flat part of trapezoidal wave, the synthetic basic electromagnetic of three phase windings changes bigger apart from pulsating quantity, be superimposed with magnetic resistance again and change distance, maximum electromagnetic torque and minimum electromagnetic torque differ nearly one times, change distance greater than setting for making minimum starting, have to adopt expensive Nd-Fe-B magnet steel watt material, thereby the motor cost height, but its performance is not good.
Summary of the invention
The purpose of this invention is to provide a kind of starting brushless DC magnetor for motorcycle, to solve an above-mentioned difficult problem.
The object of the present invention is achieved like this, and a kind of starting brushless DC magnetor for motorcycle comprises motor base, external rotor flywheel, rotating shaft, internal stator and starting drive circuit; External rotor flywheel inner chamber is equipped with several to N, S permanent magnetic steel, is equipped with several stator slot windings on the internal stator.The present invention is respectively arranged with three-phase starting cross-slot full-pitched coil group and single-phase of generating electricity cross-slot full-pitched coil group in the inner stator coil groove.Described three-phase starting cross-slot full-pitched coil group is to arrange like this, and the identical cross-slot full-pitched coil of the coiling number of turn successively in the groove that belongs to the A phase at a distance of all of three grooves earlier constitutes the ground floor of A phase winding; Belong to the identical cross-slot full-pitched coil of the coiling number of turn successively in the B phase groove in adjacent same all at a distance of three grooves again, constitute the ground floor of B phase winding; Belong to the identical groove full-pitched coil of the coiling number of turn successively in the groove of C phase in remaining same all at a distance of three grooves subsequently, constitute the ground floor of C phase winding.And then by above-mentioned identical method, coiling belongs to A respectively, B, the second layer of C three-phase, the 3rd layer of winding, each of each phase layer winding should connect by the identical successively mode serial or parallel connection of electromotive force direction, constitute three-phase starting winding, three-phase starting winding Y connects, comprise that Y connects mid point and draws four starting winding lead-out wires altogether, single-phase of generating electricity cross-slot full-pitched coil group is arranged on the skin of three-phase starting cross-slot full-pitched coil group, the i.e. identical single-phase of generating electricity coil of the coiling number of turn successively in the groove that belongs to the A phase at a distance of all of three grooves, be set to coupled in series between each single-phase of generating electricity coil, single-phase of generating electricity coil groups two union ends are drawn by lead.
The present invention is owing to adopted above technical scheme, its three-phase starting cross-slot full-pitched coil group has adopted the multilayer cross-slot whole apart from the superimposed layout of layering, not only reduced the winding overhang height, it is long to strengthen internal stator in limited space, and has improved winding coefficient and wire casing utilization of space.And adopted cheap ferrite magnetic steel, when the polar arc angle of ferrite magnetic steel watt during greater than 120 electrical degrees, the flat part of every phase winding basic electromagnetic torque trapezoidal wave is greater than 120 electrical degrees, and the synthetic basic electromagnetic torque of three phase windings is a steady state value.The groove number of internal stator is many, and the reluctance torque that the ferrite magnetic shoe produces is less, and the torque pulsation amount is little.And owing to adopt common ferrite magnetic steel watt material, under same electric motor starting performance, cost descends significantly, has fabulous practical value and economic benefit.
Description of drawings
Fig. 1 is a kind of starting brushless DC magnetor for motorcycle structural representation of the present invention;
Fig. 2 is the structural representation of a kind of starting brushless DC magnetor for motorcycle internal stator winding of the present invention;
Fig. 3 is the principle schematic of a kind of starting brushless DC magnetor for motorcycle drive circuit of the present invention
Among the figure,
1, external rotor flywheel 2, internal stator 3, stator coil
3-1, three-phase actuating coil 3-2 single-phase of generating electricity coil 4, motor base
5, rotating shaft 6, magnet steel 7, transducer magnet steel
8, Hall element 9, sensor circuit board 10, trigger
11, connecting line
Embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is explained as follows:
In Fig. 1, starting brushless DC magnetor is made of motor base 4, external rotor flywheel 1, internal stator 2, stator coil 3, rotating shaft 5, magnet steel 6, transducer magnet steel 7, Hall element 8, sensor circuit board 9, trigger 10 etc.Wherein, external rotor flywheel 1 forms by mild steel is cold drawn.The inner chamber of external rotor flywheel 1 evenly is pasted with 6 blocks of magnet steel 6 that N, S are extremely alternate, and magnet steel 6 can adopt magnet steel that common cheap ferrite magnetic steel makes watt.Internal stator 2 is provided with 18 coil grooves.Owing to adopt the whole square winding of multilayer cross-slot on the internal stator 2 of the present invention, in order to obtain bigger electromagnetic torque, reduce pulsation, the polar arc angle Selection of magnet steel watt should be much larger than 120 ° of electrical degrees, and it is good adopting 140 ° of electrical degrees in the reality.
The energising of brachium pontis is always arranged in the three-phase half-bridge when moving constantly in order to ensure each, avoid starting the dead band, the space electrical degree of the arc position transducer magnet steel 7 that external rotor flywheel 1 end face is provided with should be greater than 120 °, and actual design is 140 ° of electrical degrees for well.
In Fig. 2, the internal stator winding partial structurtes of starting brushless DC magnetor under a pair of magnetic pole have been illustrated.Starting brushless DC magnetor internal stator 2 is provided with 18 coil teeth groove, and tooth slot-number ratio short distance is concentrated many one times of winding scheme, and each is to there being 6 teeth groove under the magnetic pole.Be that 3 teeth groove are arranged under each magnetic pole, A, B, 1 groove of the every phase of C three-phase.And when arranging three-phase actuating coil 3-1 in pilot trench decided at the higher level but not officially announced, the identical cross-slot full-pitched coil of the coiling number of turn successively in the groove that belongs to the A phase at a distance of all of three grooves earlier constitutes the ground floor of A phase winding; Belong to the identical cross-slot full-pitched coil of the coiling number of turn successively in the B phase groove in adjacent same all at a distance of three grooves again, constitute the ground floor of B phase winding; Belong to the identical groove full-pitched coil of the coiling number of turn successively in the groove of C phase in remaining same all at a distance of three grooves subsequently, constitute the ground floor of C phase winding.Then, by above-mentioned identical method, coiling belongs to the second layer of A, B, C three-phase, the 3rd layer of winding respectively again.Each of each phase layer winding should constitute A, B, C three-phase actuating coil 3-1 by the identical successively mode coupled in series of electromotive force direction, and three-phase actuating coil Y connects, and comprises that Y connects mid point and draws four starting winding lead-out wires altogether, and is connected in the drive circuit.In discrete separately A, B, C three-phase actuating coil 3-1, the coil turn of every parallel branch of every phase, each layer, parallel connection or series connection should be identical.At last, it is whole apart from single-phase of generating electricity coil 3-2 at the skin of three-phase starting cross-slot full-pitched coil 3-1 cross-slot to be set again, the i.e. identical single-phase of generating electricity coil of the coiling number of turn successively 3-2 in the groove that belongs to the A phase at a distance of all of three grooves, be set to coupled in series between each single-phase of generating electricity coil 3-2, single-phase of generating electricity coil 3-2 organizes two union ends and is drawn by lead.Each winding coil is forcing together tightly all, effectively reduces winding and take up space.Though the technique for coiling of winding of the present invention is complicated a bit, it can reduce the winding overhang height effectively, increases the iron core effective length, and winding coefficient is 1, the winding utilization height.Especially, when the polar arc angle that adopts common ferrite magnetic steel 6 during greater than 120 ° of electrical degrees, the flat part of every phase winding basic electromagnetic torque trapezoidal wave is greater than 120 ° of electrical degrees, and the synthetic basic electromagnetic torque of three phase windings is a steady state value.Simultaneously, reluctance torque that the ferrite magnetic shoe produces and synthetic torque pulsation are all less, thereby motorcycle DC started with no brush motor of the present invention, though use common, cheap ferrite magnetic steel can reach the requirement of motorcycle starting performance.
In Fig. 3, because the starting current of starting brushless DC magnetor is bigger,, save power MOS pipe for simplified driving circuit, select three-phase half-bridge scheme.Every phase winding takes turns 120 ° of electrical degrees of each conducting, compares with three phase full bridge, and the power device expense has reduced half, also prevented power tube that full-bridge might occur with arm conducting phenomenon, thereby the job security of power tube improves greatly.Not only reduce cost, and improved reliability.Because the power MOS pipe conducting resistance has positive temperature coefficient, and the automatic current equalizing characteristic is arranged during parallel running, three-phase all adopts the work of three 2SK1506 power MOS tube parallels.
Usually, unfavorable if starting current is too big when motorcycle starts to battery, so any two phase windings can not be switched on simultaneously in the starting brushless DC magnetor.The space electrical degree of external rotor flywheel 1 end arc shaped position transducer magnet steel 7 is greater than 120 °, be 140 ° of electrical degrees, three component space positions of position Hall element 8 are at a distance of 120 ° of electrical degrees, two Hall elements can occur position signalling output simultaneously, must handle position signalling in control circuit.When next Hall element has just had position signalling when output, drive the conducting of corresponding power pipe immediately, block last phase power tube drive signal simultaneously, be carved with when guaranteeing each and a phase winding conducting is only arranged, guarantee normal starting.
In the drive circuit of starting brushless DC magnetor, T1～T10 is 9014, and T11～T13 is 8050, and T14～T16 is 8550, and M1～M3 is a power MOS pipe, and A, B, C are motor three-phase starting winding.R15～R17 and C2～C4 constitutes resistance capaciting absorpting circuit.Power MOS pipe is that voltage follow is recommended the output driving, and the pipe consumption is low.When system switched on, the last voltage of C1 slowly rose, and T10 ends, and T4, T5, T6 conducting guarantee that each power tube metal-oxide-semiconductor all is in cut-off state, avoided misoperation to damage power MOS pipe.Through a few tens of milliseconds time-delay, the T10 conducting, T4, T5, T6 end, and allow electric motor starting.HA, HB, HC are three Hall elements 8, and transducer need connect and draw resistance for being motor open circuit output, Hall element 8 outputs 0 when magnetic field is arranged, and Hall element 8 exports 1 during no magnetic field.Supposing has magnetic field earlier on the HA of energising back and exports 0, and T1 ends, M1 conducting, the energising of A phase winding, electric motor starting; Simultaneously make the T9 conducting through R10, M3 can not conducting, only A phase winding energising.The motor rotation, when exporting 0 when on the HB magnetic field being arranged, T2 ends, the M2 conducting, B switches on mutually; The A phase is blocked in T7 conducting simultaneously.Equally, when exporting 0 when on the HC magnetic field being arranged, C switches on mutually, blocks the B phase by R12.Go round and begin again like this, motor gets up rapidly.This circuit is simple, reliable, cost is low.
In the drawings, the Y of brush DC magneto connects three-phase starting winding and connects with the three-phase half-bridge drive circuit, three position signallings that the switching mode element is sent on the position Hall element 8 are controlled conducting of three-phase half-bridge drive circuit or disconnection after treatment, realize the starting brushless DC magnetor commutation.During the motorcycle starting, starting brushless DC motor part is battery-powered.After the motorcycle starting, the outage of starting brushless DC magnetor three-phase starting winding, the size of single-phase of generating electricity winding output and frequency charge the battery through the motorcycle voltage regulator with the electromotive force of external rotor flywheel 1 rotation speed change, give other electric power supply of motorcycle simultaneously.
Claims (3)
1. starting brushless DC magnetor for motorcycle, comprise motor base, external rotor flywheel, rotating shaft, internal stator and starting drive circuit, external rotor flywheel inner chamber is equipped with several to magnet steel, be equipped with several stator slot windings on the internal stator, it is characterized in that, be respectively arranged with three-phase starting cross-slot full-pitched coil group and single-phase of generating electricity cross-slot full-pitched coil group in the inner stator coil groove; Described three-phase starting cross-slot full-pitched coil group is to arrange like this, and the identical cross-slot full-pitched coil of the coiling number of turn successively in the groove that belongs to the A phase at a distance of all of three grooves earlier constitutes the ground floor of A phase winding; Belong to the identical cross-slot full-pitched coil of the coiling number of turn successively in the B phase groove in adjacent same all at a distance of three grooves again, constitute the ground floor of B phase winding, belong to the identical groove full-pitched coil of the coiling number of turn successively in the groove of C phase in remaining same all at a distance of three grooves subsequently, constitute the ground floor of C phase winding.And then by above-mentioned identical method, coiling belongs to the second layer of A, B, C three-phase, the 3rd layer of winding respectively; Each of each phase layer winding should be by the identical successively mode coupled in series of electromotive force direction, constitute three-phase starting winding, three-phase starting winding Y connects, comprise that Y connects mid point and draws four starting winding lead-out wires altogether, single-phase of generating electricity cross-slot full-pitched coil group is arranged on the skin of three-phase starting cross-slot full-pitched coil group, the i.e. identical single-phase of generating electricity coil of the coiling number of turn successively in the groove that belongs to the A phase at a distance of all of three grooves, be set to coupled in series between each single-phase of generating electricity coil, single-phase of generating electricity coil groups two union ends are drawn by lead.
2. a kind of starting brushless DC magnetor for motorcycle according to claim 1 is characterized in that, three-phase starting cross-slot full-pitched coil group is set to stride the three-phase actuating coil group of three-flute.
3. a kind of starting brushless DC magnetor for motorcycle according to claim 1 is characterized in that, is set to ferrite magnetic material in the external rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021002746A CN1169278C (en) | 2002-01-15 | 2002-01-15 | Starting brushless DC magnetor for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021002746A CN1169278C (en) | 2002-01-15 | 2002-01-15 | Starting brushless DC magnetor for motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1360390A CN1360390A (en) | 2002-07-24 |
| CN1169278C true CN1169278C (en) | 2004-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021002746A Expired - Fee Related CN1169278C (en) | 2002-01-15 | 2002-01-15 | Starting brushless DC magnetor for motorcycle |
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| Country | Link |
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| CN (1) | CN1169278C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762812A (en) * | 2014-01-20 | 2014-04-30 | 南通大青节能科技有限公司 | Direct-current brushless starting magneto for vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762914A (en) * | 2014-01-20 | 2014-04-30 | 南通大青节能科技有限公司 | Driving circuit of direct-current brushless starting magneto for vehicle |
-
2002
- 2002-01-15 CN CNB021002746A patent/CN1169278C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762812A (en) * | 2014-01-20 | 2014-04-30 | 南通大青节能科技有限公司 | Direct-current brushless starting magneto for vehicle |
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| Publication number | Publication date |
|---|---|
| CN1360390A (en) | 2002-07-24 |
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