CN1909336B - Rotary electrical machine - Google Patents
Rotary electrical machine Download PDFInfo
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- CN1909336B CN1909336B CN2006101106210A CN200610110621A CN1909336B CN 1909336 B CN1909336 B CN 1909336B CN 2006101106210 A CN2006101106210 A CN 2006101106210A CN 200610110621 A CN200610110621 A CN 200610110621A CN 1909336 B CN1909336 B CN 1909336B
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- 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 invention provides a rotating electric machine enabling a user to accurately set a clearance between a field magnet of a rotor and a stator with simple work. The rotating electric machine (20) includes the rotor (21) which is mounted to a flywheel (56) so as to be unrotatable around the axis relative to the flywheel (56) rotatable around the axis of a crankshaft (51), and the stator (30) arranged oppositely to the rotor (21) and mounted to a case cover (19) so as to be unrotatable around the axis relative to the case cover (19). Either of the rotor (21) and the stator (30) is mounted to the flywheel (56) or the case cover (19), to which either of the rotor (21) and the stator (30) is mounted so as to be axially unmovable. Either the other of the rotor (21) and the stator (30) is mounted to the flywheel (56) or the case cover (19) so as to be axially movable. The stator (30) is provided with a support for supporting the rotor (21) so as to make the clearance between the stator (30) and the rotor (21) constant.
Description
Technical field
The present invention relates to a kind of electric rotating machine, a kind of engine and a kind of vehicle that this electric rotating machine is housed that this electric rotating machine is housed; More specifically, engine and the vehicle that relates to a kind of electric rotating machine mounting structure and electric rotating machine has been installed with this electric rotating machine mounting structure.
Background technology
Routinely, be developed on some Straddle-type vehicle such as the motorcycle and comprise the electric rotating machine (for example referring to patent documentation 1) that can assisted engine power maybe can make vehicle ' by himself power.One of this electric rotating machine that is used for Straddle-type vehicle is axial-gap rotary electric machine, i.e. the electric rotating machine that is spaced apart from each other in the axial direction of its rotor and stator.Axial-gap rotary electric machine comprise engage disc-like rotor that the magnet that produces magnetic field is arranged and rotating shaft axially on relative with rotor and be wound with the stator of coil.In general, rotor directly is installed to rotating shaft self or is installed to the rotatable parts (as flywheel) that are fixed in the rotating shaft and goes up and rotate with rotating shaft.Stator then is fixed on fixed part such as the housing.Another example for axial-gap rotary electric machine has proposed such motor, and this motor has and changes rotor and the mechanism of stator the relative position of each other with the change output characteristic, and stator is fixed to fixed part (for example referring to patent documentation 2).
The output characteristic of this axial-gap rotary electric machine is subjected to the influence of the spacing between rotor and the stator very big.That is, the spacing between rotor and the stator has a significant impact the magnetic flux that is produced between the field magnet of rotor and the stator, thereby influences the maximum (top) speed and the breakdown torque of this electric rotating machine greatly.Therefore in assembling process etc., must accurately set the spacing between rotor and the stator.
(patent documentation 1) JP-A-2000-013913
(patent documentation 2) international publication number 2004/088826, brochure
Summary of the invention
Simultaneously, in conventional electric rotating machine, rotor and stator are respectively fixed on rotatable parts and the fixed part.Therefore, the field magnet of rotor and the spacing between the stator are subjected to the influence of the position of the structure of fixed part and rotatable parts, are difficult to accurately set this spacing.In addition, in the electric rotating machine that the position of rotor and stator changes toward each other, because rotor is with high speed rotating, so be difficult to accurately set spacing between rotor and the stator.
The present invention considers the problems referred to above and makes, purpose be to provide a kind of can be accurately and set the field magnet of rotor and the electric rotating machine of the spacing between the stator easily, engine and vehicle that this electric rotating machine is installed are provided in addition.
For addressing the above problem, electric rotating machine according to the present invention comprises: rotor, described rotor not to be allowing this rotor at least with respect to can being installed to described rotatable parts around the mode of described rotational around the rotatable parts of rotational, and described rotor with described rotatable parts around described rotational; And on the direction of described axis the stator relative with described rotor, described stator is not installed to described fixed part with respect to fixed part around the mode of described rotational not allow this stator at least, wherein, not allow one in described rotor and the described stator moving on the described axis direction and allowing another mode that on described axis direction, moves that described rotor or described stator are installed to described rotatable parts or described fixed part, the apparent surface relative with described rotor of described stator has the device embedding circular magnetic flux generation district wherein that is used to produce magnetic flux, and described stator has support, and this support is so that the fixing mode of spacing that the apparent surface relative with described magnetic flux generation district of described rotor and described magnetic flux produce between the district supports described rotor.
Here, rotatable parts can be the parts around this rotational, for example the belt wheel of bent axle, flywheel, clutch housing and buncher.Fixed part can be lid, crankcase, the Poewr transmission mechanism of covering from the engine to the trailing wheel such as the case of transmission of chain, band and axle etc. that covers electric rotating machine.
According to the present invention,, also can accurately set the spacing between rotor and the stator even there are some errors the structure of rotatable parts or fixed part or position.One in rotor and the stator has field magnet, and another has coil etc.The magnetic flux generation device can be coil, field magnet etc.
In one aspect of the invention, to allow described another in described rotor and the described stator described another in described rotor and the described stator to be installed to described rotatable parts or described fixed part on described axis direction by the mode that a carriage moves, and described carriage comprises junction surface and joint, described junction surface forms on described rotatable parts or described fixed part and extends on described axis direction, and described joint forms on described rotor or described stator and engages with the described junction surface slip in described axis direction upper edge with described junction surface.According to this aspect,, also can accurately set the spacing between rotor and the stator even there are some errors the structure of rotatable parts or fixed part or position.The junction surface can be recess or the through hole that for example extends on axis direction, and the joint can be pin, bolt that for example protrudes or the protuberance that is formed by resin, metal etc.
In another aspect of this invention, the described support of described stator directly or indirectly carries out pivoting action against described rotor to support described rotor.According to this aspect,, also can accurately set the spacing between rotor and the stator even there are some errors the structure of rotatable parts or fixed part or position.
In aspect this, the described support of described stator can support described rotor via bearing and carry out pivoting action.According to this aspect, rotor is supported to the relative stator smooth rotation.
In addition, in aspect this, described stator can have and comprises that magnetic flux produces the apparent surface in district and can have relative with described rotor and cross section is the circular relative portion of rotor, and described support can be formed in the inner peripheral surface or outer peripheral face of the relative portion of described rotor.The magnetic flux that the magnetic flux generation device is embedded in the relative portion of rotor produces in the district.Therefore, the inner peripheral surface of the relative portion of rotor and outer peripheral face all have certain width on axis direction.According to this on the one hand, this support is formed in the inner peripheral surface or outer peripheral face of the relative portion of rotor, and promptly be formed on along axis direction and magnetic flux and produce interval position spaced place, and this support part supports rotor.Therefore, the spacing between magnetic flux generation district and the rotor can be very short.
In addition, in aspect this, at least one in the joint of this bearing of the support of stator and rotor can be made by resin material.Rotor or stator have and are formed with coil and unshakable in one's determination tooth, field magnet etc.Because bearing is not directly against these parts but against the part of being made by resin material, so can prevent wearing and tearing of bearing or the like.
Engine according to the present invention connects with above-mentioned arbitrary electric rotating machine.Owing in arbitrary electric rotating machine, accurately set the spacing between rotor and the stator, so can accurately control its output characteristic.Therefore, when the electric rotating machine assisted engine moves, can accurately control this and assist.
Vehicle according to the invention comprises above-mentioned arbitrary electric rotating machine.Owing in arbitrary electric rotating machine, accurately set the spacing between rotor and the stator, so can accurately control its output characteristic.Therefore, move when making vehicle ', can accurately control travelling of vehicle at electric rotating machine.In addition, this vehicle comprises for example motorcycle (bicycle (electric bicycle) and the motor scooter that comprise charged motivation), four-wheel car (off highway vehicle), snowmoblie and the riding four-wheel cars of 2 to 4 people (off highway vehicle) etc.
Description of drawings
Fig. 1 is the end view that comprises the motorcycle of the electric rotating machine of constructing according to the embodiment of the invention;
Fig. 2 is the end view at this motorcycle rear portion;
Fig. 3 is the sectional view of being got along III-III line among Fig. 2;
Fig. 4 is the zoomed-in view of Fig. 3;
Fig. 5 is the schematic diagram that the state that the relative flywheel of the rotor of electric rotating machine slides is shown;
Fig. 6 is the schematic, exploded perspective view of electric rotating machine;
Fig. 7 comprises the schematic diagram of the various states of the movable stator relative fixed stator rotation that electric rotating machine is shown;
Fig. 8 is the sectional view according to the electric rotating machine of another embodiment of the present invention structure;
Fig. 9 is the zoomed-in view of Fig. 8.
Embodiment
Below in conjunction with description of drawings one embodiment of the present of invention.
Fig. 1 is the end view as the motorcycle 1 of the example of the Straddle-type vehicle of constructing according to one embodiment of present invention.Fig. 2 is the end view at this motorcycle 1 rear portion.Fig. 3 is the sectional view of being got along III-III line among Fig. 2.Fig. 4 is the zoomed-in view of the electric rotating machine 20 of Fig. 3.Fig. 5 be illustrate this electric rotating machine 20 rotor 25 can bent axle 51 axially on the schematic diagram of the state that slides.Fig. 6 is the schematic, exploded perspective view of this electric rotating machine 20.In addition, muffler, car body lid etc. have been omitted among Fig. 2.
As shown in Figure 1, motorcycle 1 has front-wheel 3 in the preceding bottom of car body.Front fork 5 rotates at its bottom supporting front-wheel 3.Steering spindle 7 connects with the top ends of front fork 5 and extends upward.Steering handle 9 is installed to the top ends of steering spindle 7 and extends on the width of the carbody direction.Respectively there is a handle 11 at the two ends of steering handle 9.Vehicle frame 10 is installed on the central portion of steering spindle 7.
Extend to rear vehicle under vehicle frame 10 is oblique, crooked then and horizontal-extending.Afterwards, the further crooked and straight-line extension of vehicle frame 10.Vehicle seat 13 is arranged in the upper back of vehicle frame 10.The top of rear suspension 15 connects with the rearward end of vehicle frame 10.The bottom of rear suspension 15 connects (see figure 2) with the rearward end 16a of postbrachium 16.Postbrachium 16 supporting wheels 17 rotate.The actuating force of engine 50 is delivered to trailing wheel 17 by the actuating force transmission mechanism such as variable v-belt drive so that trailing wheel 17 rotates.Engine 50 is arranged on the central lower of vehicle frame 10.
The central portion of engine 50 has cylinder block 50a.Accommodate piston 50b among the cylinder block 50a.The top of connecting rod 50c connects with piston 50b.Bent axle 51 is installed to the bottom of connecting rod 50c.
Electric rotating machine 20 is arranged on engine 50 external position of (being direction shown in Fig. 3 symbol) on the width of the carbody direction.Electric rotating machine 20 is installed to bent axle 51 (see figure 3)s.The power of electric rotating machine 20 assisted engines 50 or make vehicle ' by himself power.In addition, when the electric weight of storage battery (not shown) is lower than predetermined amount or under the analogue, electric rotating machine 20 is as generator.
Shown in Fig. 3 and 4, bearing 52 supporting crankshafts 51 rotate.The case lid 19 that covers crankcase 50d from the side keeps this bearing 52.Oil-containing and the bearing 53 that is kept by crankcase 50d rotate at bent axle 51 centre supporting crankshafts 51.Seal member 54 is installed on the far-end 51c of bent axle 51 from the position outside the width of the carbody direction upper bearing (metal) 52.
Start and deceleration gear 61, one-way clutch 55, flywheel 56 and electric rotating machine 20 are installed on the bent axle 51 to its far-end 51c in this order from the central portion (being the side of coupler link 50c) of bent axle 51.
At first, output shaft engagement with explanation start and deceleration gear 61 and one-way clutch 55. gears 62 and self-drive motor 60. start and deceleration gear 61 and this gear 62 engagements. when piloting engine operation, start and deceleration gear 61 is delivered to this actuating force that one-way clutch 55. is delivered to one-way clutch 55 with the actuating force of self-drive motor 60 and is delivered to bent axle 51. on the other hand by the flywheel 56 that rotates with one-way clutch 55, after engine 50 startings, self-drive motor 60 stops operating, one-way clutch 55 relative start and deceleration gear 61 independent rotation. so the actuating force of engine 50 is not delivered to self-drive motor 60. in addition, 61 relative bent axle 51 idle running of start and deceleration gear.
Flywheel 56 (rotatable parts) then will be described.Flywheel 56 comprises the major diameter tube 56b of portion of discoid round plate 56a, tubular and the minor diameter tube 56c of portion of tubular.The central authorities of round plate 56a have the hole that bent axle 51 extends through.The major diameter tube 56b of portion from the edge of round plate 56a towards electric rotating machine 20 bent axle 51 axially on (below be called " on the pivot center direction ") extend.The minor diameter tube 56c of portion extends in the pivot center direction towards electric rotating machine 20 from the edge in the hole of round plate 56a.
Circumferentially be formed with a plurality of bolts hole along the round plate 56a of flywheel 56 in some radial position place of round plate 56a.And, be formed with bolt hole in the corresponding position, these positions of one-way clutch 55 and round plate 56a.Also fastening in the bolt hole of bolt insertion round plate 56a and the bolt hole of one-way clutch 55, thus flywheel 56 is fixed to one-way clutch 55.
The inner peripheral surface of the minor diameter tube 56c of portion of flywheel 56 has linearly extended groove shape recess 56d on the pivot center direction.On the other hand, the periphery of bent axle 51 has a recess in the position relative with the inner peripheral surface of flywheel 56, and this recess forms and makes this periphery semicircular in shape indent.The attachment 65 that are suitable for this recess structure cooperate in this recess of packing into.The circumference of these attachment 65 is given prominence to and is engaged with the recess 56d of the minor diameter tube 56c of portion from the periphery of bent axle 51.Because both engage these attachment 65 and flywheel 56 and bent axle 51, so flywheel 56 can be with bent axle 51 rotations.
The inner peripheral surface of the minor diameter tube 56c of portion of flywheel 56 is tapered towards the far-end 51c of bent axle 51.Bent axle 51 has the tapered tapering 51b towards far-end 51c.Bent axle 51 inserts among the minor diameter tube 56c of portion of flywheel 56, and the inner peripheral surface of the minor diameter tube 56c of portion of flywheel 56 is against the outer peripheral face of tapering 51b.Prevent that thus flywheel 56 from shifting out tapering 51b towards bent axle 51 central authorities, thereby determined the position of flywheel 56 on bent axle 51.Nut 57 is contained on the bent axle 51 from the far-end 51c of bent axle 51.Nut 57 is pushed flywheel 56 to bent axle 51 central authorities, thereby the inner peripheral surface of the minor diameter tube 56c of portion of flywheel 56 is pressed onto on the outer peripheral face of tapering 51b.Therefore, flywheel 56 connects with bent axle 51 by friction.
The inner peripheral surface of the major diameter tube 56b of portion of flywheel 56 has linearly extended a plurality of groove shape recess 56e on the pivot center direction.York piece 22 engages with recess 56e, and rotor 21 rotates with flywheel 56.Engaging and to describe in detail hereinafter between york piece 22 and the flywheel 56.
Then electric rotating machine 20 will be described.Electric rotating machine 20 comprises rotor 21 and stator 25 successively from bent axle 51 central authorities.In this embodiment, adopt following stator unit as stator 25, this stator unit have with rotor 21 be relatively fixed stator 30 and with rotor 21 opposite sides on the movable stator 40 relative with fixed stator 30.As mentioned below, the magnetic field that stator 25 produces can change arbitrarily.
The internal diameter of inner cylinder portion 22b is a bit larger tham the external diameter of the minor diameter tube 56c of portion of flywheel 56. and the minor diameter tube 56c of portion of bent axle 51 and flywheel 56 inserts among the inner cylinder portion 22b. two circular elastomeric elements 58, in 58 spaces that cooperate between the outer peripheral face of the minor diameter tube 56c of portion of the inner peripheral surface of the inner cylinder portion 22b that packs into and flywheel 56. elastomeric element 58, space between the outer peripheral face of the inner peripheral surface of 58 sealing inner cylinder portion 22b and the minor diameter tube 56c of portion of flywheel 56, thereby for example when rotating, electric rotating machine 20 prevents rotor 21 vibrations. in addition, a plurality of field magnets 23 are circular layout, and join to round plate 22a on the surface of fixed stator 30.
As Fig. 4 or shown in Figure 5, rotor 21 is installed to flywheel 56 with removable on the pivot center direction.Particularly, the external diameter of the round plate 22a of york piece 22 equals the internal diameter of the major diameter tube 56b of portion of flywheel 56 substantially.The peripheral part of round plate 22a has the quantity radially outwards outstanding protuberance 22c (joint) identical with the quantity of the recess 56e (junction surface) of flywheel 56.Protuberance 22c engages with recess 56e and can slide at pivot center direction upper edge recess 56e.Therefore, rotor 21 is installed to flywheel 56 by this way, promptly allows rotor 21 to move on the pivot center direction but does not allow it to rotate relative to flywheel 56.In addition, each recess 56e extends to the end 56g of the major diameter tube 56b of portion in electric rotating machine 20 1 sides from the major diameter tube 56b of portion at the end 56h of round plate 56a one side.Therefore, rotor 21 can be from end 56g along the pivot center direction slide in rotor 21 does not contact the limit of bolt head, wherein utilizes this bolt that flywheel 56 is fixed to one-way clutch 55.
Now stator 25 will be described.As mentioned above, stator 25 comprises fixed stator 30 and movable stator 40.Shown in Fig. 3 and 4, fixed stator 30 has a plurality of fixed teeth 34, and each fixed teeth 34 all is formed with an iron core.These a plurality of fixed teeth 34 annulus are arranged to center on bent axle 51.The end surfaces 34a towards rotor 21 of each fixed teeth 34 (magnetic flux produces the district) is relative with the field magnet 23 of rotor 21.Coil 31 is wound on each fixed teeth 34, to produce magnetic flux when electric current flows through.The resin portion 36 that these a plurality of fixed teeth 34 and coil 31 usefulness are made by the resin material that contains lubricant is molded and shaped.Resin portion 36 is circular formation around the axis of bent axle 51.Resin portion 36 has than the coil case that the is formed with a plurality of coils 31 interior perimembranous 36a (see figure 3) of the roughly tubular of the inner side of a plurality of coil 31 more close bent axle 51 axis (promptly than).In addition, resin portion 36 has the roughly peripheral part 36b of tubular in the outside of this coil case diametrically.
As Fig. 4 or shown in Figure 6, fixed teeth 34, interior perimembranous 36a and peripheral part 36b form the relative portion 32 of circular rotor together.The relative portion 32 of rotor and rotor 21 are relative and form axis (see figure 4) around bent axle 51.That is, the end surfaces towards rotor 21 of each end surfaces of fixed teeth 34 and peripheral part 36b is relative with the round plate 22a of york piece 22.Interior perimembranous 36a is relative with the inner cylinder portion 22b of york piece 22.Bearing 63 is positioned at the inboard of the inner peripheral surface of the relative portion 32 of rotor.Thereby the relative portion 32 of rotor carries out pivoting action via bearing 63 supporting rotors 21.
Particularly, interior perimembranous 36a has bearing maintaining part 36i.Bearing maintaining part 36i has circular bearing and keeps surperficial 36c and bearing abutment surface 36j.Bearing keeps surperficial 36c relative with rotor 21 perpendicular to bent axle 51 extends, and in being arranged in perimembranous 36a at it towards the end of rotor 21 and it is near the centre position between the end of movable stator 40.Bearing abutment surface 36j is against the outer peripheral face 63a of bearing 63.
The inner cylinder portion 22b of york piece 22 has the bearing of being subjected to maintaining part 22e at more close bent axle 51 far-end 51c places.Be subjected to bearing maintaining part 22e to have the circular bearing that is subjected to and keep the bearing abutment surface 22f of surperficial 22d and tubular.Be subjected to bearing keep surperficial 22d perpendicular to bent axle 51 extends at inner cylinder portion 22b along relative near the centre position of pivot center direction with fixed stator 30.Bearing abutment surface 22f is against the inner peripheral surface 63b of bearing 63.
To illustrate below towards the structure of the fixed stator 30 of movable stator 40.The interior perimembranous 36a towards movable stator 40 of fixed stator 30 has circular bearing and keeps surperficial 36f and circular protuberance 36g.Bearing keeps surperficial 36f relative with movable stator 40 perpendicular to bent axle 51 extends.Protuberance 36g keeps the inner peripheral end of surperficial 36f to extend towards movable stator 40 from bearing.The inner peripheral surface of bearing 64 is against the outer peripheral face 63a of protuberance 36g.Bearing keep surperficial 36f to keep bearing 64 and guarantee movable stator 40 and fixed stator 30 between spacing.Bearing keeps surperficial 36f how to guarantee that this spacing will be described in more detail hereinafter.
As mentioned above, movable stator 40 is relative with fixed stator 30 in a side opposite with rotor 21.Movable stator 40 has circular base 42 and the quantity removable tooth 41 identical with the quantity of fixed teeth 34.The removable tooth 41 of base 42 supportings makes removable tooth 41 be circular layout around the axis of bent axle 51.The resin portion 43 that base 42 and removable tooth 41 usefulness are made by the resin material that contains lubricant is molded and shaped.Resin portion 43 has the circular perimembranous 43e that is positioned at described a plurality of removable tooth 41 and base 42 inboard (inboard, position of the axis of promptly more close bent axle 51) diametrically.
Particularly, each removable tooth 41 all is formed with an iron core.The magnetic force that flows through the electric current generation of coil 31 inhales removable tooth 41 to fixed teeth 34.Bearing 64 keeps the bearing of surperficial 43a and fixed stator 30 to keep between the surperficial 36f at bearing.Bearing keeps surperficial 36f to overcome this attraction via bearing 64 and keeps surperficial 43a towards case lid 19 block bearings.Therefore, the end surfaces 34b k spaced apart of the end surfaces 41a of each removable tooth 41 and each fixed teeth 34.
The inner peripheral surface of the interior perimembranous 43e of movable stator 40 has the abutment surface 43b against the outer peripheral face of bearing 64.Abutment surface 43b is against the whole outer peripheral face of bearing 64.Movable stator 40 rotation axis that rotates is rotated and can't be moved diametrically.
According to above-mentioned electric rotating machine 20, fixed stator 30 is fixed to case lid 19 in the mode that does not allow fixed stator 30 on the pivot center direction, to move.Simultaneously, in the mode that allows rotor 21 on the pivot center direction, to move rotor 21 is installed to flywheel 56.In addition, fixed stator 30 has bearing maintaining part 36i.Bearing 63 is installed on the bearing maintaining part 36i.Therefore, even there is any error in the installation site of the structure of case lid 19 or flywheel 56, rotor 21 also can slide and the bearing maintaining part 36i of the stator 30 that is fixed supports and rotates.In addition, can guarantee accurate spacing between the end surfaces 34a of the apparent surface 23a of field magnet 23 and fixed teeth 34.
In addition, in this electric rotating machine 20, movable stator 40 rotates rotation axis with respect to fixed stator 30 rotations. thus,, electric rotating machine 20 in high torque (HT) low engine speed range or low torque high engine speed range, works thereby can changing its output characteristic.
Fig. 7 comprises the schematic diagram of the various states that 30 rotations of movable stator 40 relative fixed stators are shown.For ease of explanation, the resin portion 36 of fixed stator 30 shown in Figure 3 and resin portion 43 both and the bent axle 51 and the coils 31 of movable stator 40 have been omitted in the figure.In addition, the part identical with Fig. 3 represented with same numeral among this figure.
Fig. 7 (a) illustrates the fixed teeth 34 of the removable tooth 41 of movable stator 40 over against fixed stator 30.In the case, each fixed teeth 34 is minimum value k (see figure 4)s towards the end surfaces 34b of each removable tooth 41 and the spacing towards between the end surfaces 41a of each fixed teeth 34 of each removable tooth 41.Under this state, magnetic flux passes fixed teeth 34, removable tooth 41, base 42 and field magnet 23.Magnetic flux promptly flows through each coil 31 inboards from the end surfaces 34b that the end surfaces 34a towards field magnet 23 of each fixed teeth 34 flows to its opposition side.
Hereinafter the motor 66 with explanation drives movable stator 40 rotations.Behind centre position shown in Fig. 7 (b), movable stator 40 turns to position shown in Fig. 7 (c), promptly up to the position of each removable tooth 41 middle between each fixed teeth 34 and adjacent fixed teeth 34.Under this state, each fixed teeth 34 towards the end surfaces 34b of each removable tooth 41 and strengthening of each removable tooth 41 towards the spacing between the end surfaces 41a of each fixed teeth 34.Therefore, magnetic flux does not flow through removable tooth 41 but flows through fixed teeth 34 and field magnet 23 near the rotor 21.Because magnetic flux do not flow through coil 31 inboards, thus magnetic flux than the magnetic flux under Fig. 7 (a) state a little less than.In addition and since magnetic flux under the state shown in Fig. 7 (c) a little less than, so electric rotating machine 20 is worked as the high rotating speed formula of low torque electric rotating machine.On the other hand, under state shown in Fig. 7 (a), because magnetic flux flow is crossed coil 31 inboards, so magnetic flux is stronger than the magnetic flux under the state of Fig. 7 (c).Thereby electric rotating machine 20 is worked as high torque (HT) slow-speed of revolution formula electric rotating machine.
In addition, to be driven by motor 66 be practicable in this rotation of movable stator 40.That is, the part of the outer peripheral face of the resin portion 43 of movable stator 40 protruding diametrically and with from the outward extending diametrically gears engaged of electric rotating machine 20.Cable 66a is on this gear, and this cable 66a is connected to motor 66 (see figure 2)s.When motor 66 rotated forward or backwards, movable stator 40 rotated rotation axis with respect to fixed stator 30 rotations.
The invention is not restricted to above-mentioned electric rotating machine 20, but various replacement schemes can be arranged.For example, in electric rotating machine 20, the inner peripheral surface of the major diameter tube 56b of portion of flywheel 56 has recess 56e.But, also can be that the round plate 56a of flywheel 56 has a plurality of protuberances that stretch out towards electric rotating machine 20.In this replacement scheme, the round plate 22a of york piece 22 can have through hole corresponding with the protuberance of flywheel 56 or recess, and the protuberance of flywheel 56 can removably cooperate in pack into these through holes or the recess.Therefore.Rotor 21 is installed to flywheel 56, and feasible permission rotor 21 moves on the pivot center direction but do not allow it to rotate relative to flywheel 56.
In addition, in above-mentioned electric rotating machine 20, rotor 21 is installed to flywheel 56, makes to allow rotor 21 to move on the pivot center direction.But, also rotor 21 can be installed to case lid 19, make to allow fixed stator 30 on the pivot center direction, to move.Fig. 8 is the sectional view of the electric rotating machine 20a in this alternate embodiment.Fig. 9 is the zoomed-in view of Fig. 8.In these figure, the part identical with electric rotating machine 20 represented with same numeral.
In electric rotating machine 20a, rotor 70 is installed to bent axle 51 (rotatable parts), makes that not allowing rotor 70 to rotate relative to bent axle 51 does not allow it to move on the pivot center direction yet.Fixed stator 30 is installed to case lid 19, makes to allow fixed stator 30 to move on the pivot center direction.
To illustrate that at first rotor 70. rotors 70 have bowl-shape york piece 71. york pieces 71 and comprise that the central portion of the inner cylinder portion 71c. round plate 71a of the 71b of urceolus portion of discoid round plate 71a, tubular and tubular has the through hole that bent axle 51 extends through. inner cylinder portion 71c extends in the pivot center direction from the edge of this through hole. and the 71b of urceolus portion extends in the pivot center direction towards fixed stator 30 from the edge of round plate 71a.
The inner peripheral surface of the inner cylinder portion 71c of york piece 71 is tapered towards the far-end 51c of bent axle 51.Simultaneously, bent axle 51 has the tapered tapering 51b towards far-end 51c.Nut 57 is contained on the bent axle 51 and with york piece 71 and pushes bent axle 51 central authorities to.The inner peripheral surface of the inner cylinder portion 71c of york piece 71 is forced on the outer peripheral face of tapering 51b thus.Therefore, york piece 71 connects with bent axle 51 by friction, thereby does not allow york piece 71 relative to bent axle 51 rotations and also do not allow it to move on the pivot center direction.
Be similar to flywheel 56, york piece 71 engages with attachment 65, and attachment 65 engage with the tapering 51b of bent axle 51.That is, the inner peripheral surface of the inner cylinder portion 71c of york piece 71 has linearly extended groove shape recess 71i on the pivot center direction.On the other hand, the periphery of the tapering 51b of bent axle 51 has a recess, and this recess is so that the mode of this periphery semicircular in shape indent forms.Attachment 65 cooperate in this recess of packing into, and the circumference of attachment 65 engages with the recess 71i of york piece 71.Prevent that thus york piece 71 from rotating relative to bent axle 51.
The round plate 71a of york piece 71 has a plurality of bolts hole.Simultaneously, one-way clutch 55 has the spiral shell verify on the position corresponding with the bolt hole of round plate 71a.By the hole of bolted round plate 71a and the bolt hole of one-way clutch 55, thereby york piece 71 also is fixed to one-way clutch 55.In addition, the 71b of urceolus portion forms very thick in to increase the quality of york piece 71.York piece 71 also can be used as flywheel thus.
Then fixed stator 30 will be described.Fixed stator 30 has the pin 38 (joint) that extends on pivot center.Case lid 19 has the recess 59a (junction surface) towards fixed stator 30 openings.Pin 38 removably cooperates among each recess 59a (junction surface) that packs into, and fixed stator 30 is installed to case lid 19 thus, makes to allow fixed stator 30 to move on the pivot center direction.
Particularly, the circumference towards the peripheral part 36b of case lid 19 of fixed stator 30 has a plurality of lock parts 37.Each lock part 37 has separately the recess towards case lid 19 openings.The head cooperation of each pin 38 is enclosed in this recess.Case lid 19 has recess 59a in the position corresponding with each lock part 37.Each recess 59a forms the top towards case lid 19 that is a bit larger tham each pin 38.Removably insert among the relevant recess 59a on the top of each pin 38.As a result, fixed stator 30 is installed to case lid 19, make to allow it move on pivot center but does not allow its rotation axis that rotates to rotate.
In this embodiment, be similar to the foregoing description, the interior perimembranous 36a of fixed stator 30 has bearing maintaining part 36i, and fixed stator 30 supporting rotors 70 rotate.Particularly, the inner cylinder portion 71c of york piece 71 has the bearing of being subjected to maintaining part 71e.Being subjected to form among the bearing maintaining part 71e is subjected to bearing to keep surperficial 71d and bearing abutment surface 71f.On the other hand, form bearing among the bearing maintaining part 36i of interior perimembranous 36a and keep surperficial 36c and bearing abutment surface 36j.Bearing 63 keeps the bearing of surperficial 71d and fixed stator 30 to keep between the surperficial 36c at the bearing that is subjected to of york piece 71.Therefore, although fixed stator 30 is inhaled to rotor 70 by the magnetic force of field magnet 23, bearing 63 is supporting fixed stator 30 not against rotor 70.The bearing abutment surface 71f of york piece 71 is against the inner peripheral surface of bearing 63, and the bearing abutment surface 36j of fixed stator 30 is against the outer peripheral face of bearing 63.Thus, fixed stator 30 supporting rotors 70 rotate.
In Fig. 8 and Fig. 9, case lid 19 has towards electric rotating machine 20a extension and has the cylindrical portion 19a that its center is the tubular of pivot center.Form tubular abutment surface 36e in the inner peripheral surface of fixed stator 30.This abutment surface 36e prevents thus that against the whole outer peripheral face of cylindrical portion 19a fixed stator 30 vibrates when electric rotating machine 20a works.
The inner peripheral surface 43d of the resin portion 43 of movable stator 40 is also against the outer peripheral face of cylindrical portion 19a.Inner peripheral surface 43d has also prevented the vibration of movable stator 40 thus against the whole outer peripheral face of cylindrical portion 19a.
In Fig. 8 and electric rotating machine 20a shown in Figure 9, do not have bearing between fixed stator 30 and the movable stator 40, thereby and fixed stator 30 and movable stator 40 mutually directly against. guaranteed spacing.
Particularly, the end surfaces 36h towards movable stator 40 of the interior perimembranous 36a of fixed stator 30 is relative with movable stator 40 perpendicular to bent axle 51 extends.On the other hand, the interior perimembranous 43e of movable stator 40 has the apparent surface 43c relative with end surfaces 36h perpendicular to bent axle 51 extensions.The end surfaces 36h of this apparent surface 43c and interior perimembranous 36a against each other, the end surfaces 41a k spaced apart of the end surfaces 34b of fixed teeth 34 and removable tooth 41 thus.
As mentioned above, in electric rotating machine 20a, rotor 70 is fixed to bent axle 51 in the mode that cannot move on the pivot center direction.Simultaneously, fixed stator 30 is installed to case lid 19 in the mode that can move on pivot center.Therefore, even there is any error in the installation site of the structure of case lid 19 or bent axle 51, fixed stator 30 also can move on pivot center, and the spacing between the end surfaces 34a of the apparent surface 23a of field magnet 23 and fixed teeth 34 can accurately be set.In addition, since bearing between rotor 70 and fixed stator 30, so fixed stator 30 supporting rotors 70 rotate.
In addition, above-mentioned electric rotating machine 20,20a also have the movable stator 40 that relative fixed stator 30 rotates except the fixed stator 30 that the rotation axis that can't rotate is rotated.But electric rotating machine 20,20a also can only can't rotate fixed stator 30 that rotation axis rotates and not have movable stator 40.
Label declaration
1: motorcycle
3: front-wheel
5: front fork
7: steering spindle
9: steering handle
11: handle
13: vehicle seat
15: rear suspension
16: postbrachium
17: trailing wheel
19: case lid
20: electric rotating machine
21: rotor
22: york piece
23: field magnet
30: fixed stator
31: coil
32: the relative portion of rotor
34: fixed teeth
36a: the interior perimembranous of fixed stator
36b: the peripheral part of fixed stator
37: lock part
40: movable stator
41: removable tooth
42: base
43: resin portion
50: engine
51: bent axle
52: bearing
53: oiliness bearing
54: seal member
55: one-way clutch
56: flywheel
57: nut
59: bolt hole
60: self-drive motor
61: the start and deceleration gear
62: gear
63: bearing
64: bearing
65: attachment
66: motor
70: rotor
71: york piece
Claims (7)
1. electric rotating machine comprises:
Rotor, described rotor to be allowing this rotor with respect to can being installed to described rotatable parts around the mode of described rotational around the rotatable parts of rotational, and described rotor with described rotatable parts around described rotational; And
The stator relative on the direction of described axis with described rotor, described stator is installed to described fixed part with respect to fixed part around the mode of described rotational not allow this stator,
Wherein, moving on the described axis direction and allowing another mode that on described axis direction, moves that described rotor is installed to described rotatable parts, described stator is installed to described fixed part not allow one in described rotor and the described stator,
The apparent surface relative with described rotor of described stator has circular magnetic flux and produces the district, and the device that is used for producing magnetic flux embeds described magnetic flux and produces the district, and
Described stator has support, and this support is so that the fixing mode of spacing that the apparent surface relative with described magnetic flux generation district of described rotor and described magnetic flux produce between the district supports described rotor.
2. electric rotating machine according to claim 1, it is characterized in that, to allow the described mode that another moves by a carriage in described rotor and the described stator on described axis direction described another in described rotor and the described stator is installed to described rotatable parts or described fixed part, and described carriage comprises junction surface and joint, described junction surface forms on described rotatable parts or described fixed part and extends on described axis direction, and described joint forms on described rotor or described stator and engages with the described junction surface slip in described axis direction upper edge with described junction surface.
3. electric rotating machine according to claim 1 and 2 is characterized in that, the described support of described stator directly or indirectly carries out pivoting action against described rotor to support described rotor.
4. electric rotating machine according to claim 3 is characterized in that, the described support of described stator supports described rotor via bearing and carries out pivoting action.
5. according to claim 3 or 4 described electric rotating machines, it is characterized in that, described stator has and comprises that magnetic flux produces the apparent surface in district and has relative with described rotor and cross section is the circular relative portion of rotor, and described support is formed in the inner peripheral surface or outer peripheral face of the relative portion of described rotor.
6. electric rotating machine according to claim 4 is characterized in that, the described support of described stator is made by resin material.
7. one kind comprises the vehicle according to each described electric rotating machine in the claim 1 to 6.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP228943/2005 | 2005-08-05 | ||
| JP2005228943 | 2005-08-05 | ||
| JP2006058662A JP5039308B2 (en) | 2005-08-05 | 2006-03-03 | Rotating electric machine |
| JP058662/2006 | 2006-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1909336A CN1909336A (en) | 2007-02-07 |
| CN1909336B true CN1909336B (en) | 2010-05-12 |
Family
ID=37700355
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101106225A Expired - Fee Related CN100574056C (en) | 2005-08-05 | 2006-08-04 | The method of the Straddle-type vehicle and the mounting rotary electric machine of electric rotating machine is housed |
| CN2006101106210A Expired - Fee Related CN1909336B (en) | 2005-08-05 | 2006-08-04 | Rotary electrical machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101106225A Expired - Fee Related CN100574056C (en) | 2005-08-05 | 2006-08-04 | The method of the Straddle-type vehicle and the mounting rotary electric machine of electric rotating machine is housed |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN100574056C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8742641B2 (en) * | 2010-11-23 | 2014-06-03 | Remy Technologies, L.L.C. | Concentric motor power generation and drive system |
| JP2024029797A (en) * | 2022-08-23 | 2024-03-07 | ヤマハ発動機株式会社 | Electric power unit and straddle-type vehicle equipped with it |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105887A (en) * | 1985-08-28 | 1987-02-25 | 五十铃汽车有限公司 | The auxiliary device of internal-combustion engine |
-
2006
- 2006-08-04 CN CNB2006101106225A patent/CN100574056C/en not_active Expired - Fee Related
- 2006-08-04 CN CN2006101106210A patent/CN1909336B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105887A (en) * | 1985-08-28 | 1987-02-25 | 五十铃汽车有限公司 | The auxiliary device of internal-combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1909336A (en) | 2007-02-07 |
| CN100574056C (en) | 2009-12-23 |
| CN1909337A (en) | 2007-02-07 |
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