CN1716735A - Hub generator and bicycle - Google Patents
Hub generator and bicycle Download PDFInfo
- Publication number
- CN1716735A CN1716735A CN 200510081038 CN200510081038A CN1716735A CN 1716735 A CN1716735 A CN 1716735A CN 200510081038 CN200510081038 CN 200510081038 CN 200510081038 A CN200510081038 A CN 200510081038A CN 1716735 A CN1716735 A CN 1716735A
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- stator core
- hub
- wheel hub
- stator
- positioning element
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Abstract
To provide a hub-type dynamo for suppressing the generation of an eddy current in a stator core and improving the power generation efficiency, and to provide a bicycle for mounting it. In a hub-type cycle dynamo, a slot 15 is provided and opened in outer circumferences of the stator cores 16, 17 on a hub shaft 11, and communicates from a center shaft hole 13 to the outer circumferences, and an insulation sheet 82 is interposed between positioning members 30, 31 on the hub shaft 11 for fixing the stator cores 16, 17.
Description
Technical field
The present invention relates to the wheel hub generator and has the bicycle of this wheel hub generator.
Background technology
Wheel hub generator as bicycle generating usefulness, as shown in Figure 2, wheel hub generator 10 is arranged, this wheel hub generator 10, it is a pair of stator core 16,17 of configuration on the hub spindle 11 of the front-wheel of bicycle or trailing wheel, the bobbin 20 and the formation stator that hold coiling coil 22 in the inside of this stator core 16,17 can rotate freely on the supported hub body 12 in ground for hub spindle 11, and be relative to described stator ground configuration permanent magnet 14 and formation rotor (patent documentation 1).
The electric end of coiling coil 22 is connected with the lamp (not shown) of bicycle by lead 22b etc.
The generating of wheel hub generator 10 is carried out according to following main points.
When wheel rotates, with permanent magnet 14 rotations of installing on the hub body 12 of wheel one rotation.The magnetic line of force that sends from permanent magnet 14 alternately produces magnetic field magnetic circuit, alternately repeat in the stator core 16,17 of opposite face one for the N utmost point, another for the S utmost point with one be the S utmost point, another is the state of the N utmost point.Produce electric current by this alternating magnetic field, make electric current by the coil 22 of reeling, thus generating.
The alternating magnetic field that is produced in the stator core 16,17 is shown in the thick arrow of Fig. 2, around 16,17 1 weeks of stator core.
In stator core 16,17, follow the carrying out of alternating magnetic field and produce eddy current.This eddy current can make generating efficiency descend, so should suppress the generation of eddy current as far as possible.
Therefore, to shown in Figure 12, on the side disc 78 of stator core 16,17, the ditch hole 15 of extending to the neighboring from the centre bore 13 of hub spindle 11 perforations is set as Figure 10, by disc 78 being disconnected the generation that prevents eddy current at a place.
Patent documentation 1: the spy opens the 2001-327139 communique.
Yet, extremely shown in Figure 15 as Figure 13, stator core the 16, the 17th is located with nut 35 and fixing by clamping stator core 16,17, the sleeve pipe 32 that is disposed at hub spindle 11, directly joins and strides over a ditch hole 15 as the disc 78 of the packing ring 36 of the composition surface of the hexagon-head 33 of the sleeve pipe 32 of electric conductor and nut 35 1 sides and stator core 16,17.
Therefore, the ditch hole 15 that applicant of the present invention has noticed stator core 16,17 presents the state that part is connected by sleeve pipe 32 and packing ring 36, can not give full play to the effect that suppresses eddy current.
Summary of the invention
The object of the present invention is to provide and a kind ofly can suppress the eddy current that produces because of stator effectively and can improve the wheel hub generator of generating efficiency and have the bicycle of this wheel hub generator.
Bicycle of the present invention is mounted with described wheel hub generator 10 on front-wheel or trailing wheel, this wheel hub generator 10 is electrically connected with headlamp 46 and/or taillight formation.
(invention effect)
Bicycle of the present invention, because be mounted with the wheel hub generator 10 of described high generating efficiency, the needed torque of generating electricity is little, and can make 10 miniaturizations of wheel hub generator, so can make the bicycle lightweight, also can reduce to act on the power on the bicycle pedal for generating.
Description of drawings
Fig. 1 is the front-wheel enlarged drawing partly that is mounted with the bicycle of wheel hub generator.
Fig. 2 is the figure that is represented the wheel hub generator by the cross section of the axle core of half hub spindle.
Fig. 3 is the axle core perpendicular sectional view with the wheel hub generator.
Fig. 4 is the left view of stator.
Fig. 5 is the right view of stator.
Fig. 6 is the right view of stator.
Fig. 7 is the front view that stator is installed on the state of hub spindle.
Fig. 8 is the same left view.
Fig. 9 is the same right view.
Figure 10 is the front view of stator always.
Figure 11 is the same right view.
Figure 12 is the same left view.
Figure 13 is the front view of the state on the hub spindle that in always the example stator is installed on.
Figure 14 is the same right view.
Figure 15 is the same left view.
Among the figure: 10-wheel hub generator, 11-hub spindle, 12-hub body, 16-stator core, 17-stator core, 22-coil, 30-positioning element, 31-positioning element, 32-sleeve pipe, 35-nut, 80-insulant.
Embodiment
Fig. 1 has represented to be mounted with at the front wheele part branch of bicycle 40 state of wheel hub generator 10 of the present invention.
The rotated freely ground of bicycle 40 supports the hub spindle 11 of front-wheel 42, is installed on the front fork 44, and wheel hub generator 10 is to the headlamp 46 of the horizontal side that is disposed at front-wheel 42 and be disposed at the taillight supply capabilities such as (not shown) of rear wheel-side.Front fork 44 is supported on the body frame 48, in the upper end of front fork 44, handlebar 50 and preceding bicycle basket 52 is installed.
As shown in Figure 2, the both sides of hub spindle 11 are fixed on the front fork 44,44 with nut, on hub spindle 11, can be equipped with the hub body 12 of tubular by bearing 54,54 with rotating freely.On hub body 12, a plurality of spokes 56 are installed, in the periphery of this spoke 56, as shown in Figure 1, tire 60 is installed by rim 58.
Dispose stator on the hub spindle 11, as shown in Figure 2, stator is to be made of the core 18 of heavy wall tubular, coiling coil 22 and 16,17 of a pair of stator cores.
As shown in Figure 3, the total length that has vertically of core 18 offers from the structure of the inside a plurality of long and narrow finedraw 24,26 of outer peripheral face.In order to reduce the magnetic resistance of core 18, the radial thickness of wishing core 18 is 7～9mm, also has, and hope can be formed by the electromagnetism soft iron material of sintered powder material such as ferrite or pure iron system.By increasing the thickness of core 18, can increase the sectional area of core 18, thereby reach the purpose of the magnetic resistance that reduces core 18.
The degree of depth of wishing the long and narrow finedraw 24 offered on the core 18 is 6～7mm, wishes that a long and narrow finedraw 26 offers the inner face that arrives tube, carries out electric insulation on Zhou Fangxiang.If this is because in core 18 by alternating flux and in core 18 when producing eddy current, can be by above-mentioned long and narrow finedraw 24,26 with the failure of current on core 18 all directions, thereby be suppressed on core 18 all directions and produce eddy current, have and prevent to cause the effect that generating efficiency is low because of eddy current.
In the periphery of core 18, the chimeric bobbin 20 that the coil 22 of reeling is arranged.One end of coiling coil 22 is connected in headlamp 46 by lead 22b, and the other end 22a of this coil 22 of reeling as hereinafter described, is connected in hub spindle 11 by earth connection plate 38, constitutes with headlamp 46 by front fork 44 to be electrically connected.
Bobbin 20 is made of synthetic resin, as shown in Figure 2, presents to peripheral openings, the cross section ring bodies for " C " font.On the inner peripheral surface of bobbin 20, as shown in Figure 3, projection is provided with one or more ribs 28, and the long and narrow finedraw 24 and/or long and narrow finedraw 26 tablings of each rib 28 and core 18 play rotation to core 18 and stop and the effect of locating.
In the left and right sides of core 18, be equipped with stator core 16,17.As Fig. 3, Fig. 4, shown in Figure 5, stator core 16,17 is equally spaced to give prominence to the parts that are provided with aduncate pole piece 74,75 in the periphery of disc 78 along Zhou Fangxiang.The pole piece 74 of the stator core 16 of one side is embedded between the pole piece 75,75 of the other side's stator core 17 on opposite and forms.Stator core 16,17 can be made of the rolled steel of general structure.
To shown in Figure 6, on the disc 78 of stator core 16,17, offer the ditch hole 15 of extending to the neighboring as Fig. 4 from the centre bore 13 of hub spindle 11 perforations.
The lead 22b that extends from coiling coil 22, the ditch hole 15 of the stator core 16 by a side and drawing laterally.
Said stator is clamped in the core 18 between the stator core 16,17 and holds on the bobbin 20 of coiling coil 22, and the position of decision on hub spindle 11 is also fixing therefrom by the positioning element on the hub spindle 11 30,31.
The positioning element 30 of a side is arranged on and is abutted against parts 32a on the hub spindle 11 among the embodiment, and the positioning element 31 of opposite side is a nut 35, at length says to be nut 35, packing ring 36 and the combination of spring washer 37.
Being abutted against parts 32a, is the parts of stop as the end position on the hub spindle 11 of decision stator, in an embodiment, is to be abutted against parts 32a with what sleeve pipe 32 threadingly engaged in hub spindle 11.Stator one side of sleeve pipe 32 is formed hexagon-head 33.
On sleeve pipe 32, offer the slot part 34 of drawing from the outside of wheel hub generator 10 for the lead 22b that embeds described coiling coil 22.
As Fig. 7, shown in Figure 9, between the stator core 16 on sleeve pipe 32 and this sleeve pipe opposite, earth connection plate 38 is installed, this earth connection plate 38 connects an end 22a of described coiling coil 22.
As Fig. 6, shown in Figure 9, on the disc 78 of the stator core 16 of described sleeve pipe 32, exist the interval and the projection of opposite side of the hexagon-head 33 of sleeve pipe 32 to be provided with spline projection 79.
The invention is characterized in, and the positioning element 30,31 of the lateral surface opposite face of stator core 16,17 between, have insulant 80, can prevent to cross over the ditch hole 15 of described stator core 16,17 and the conductor of positioning element 30,31 1 sides is contacted with stator core 16,17.Insulant 80 among the embodiment is insulating trips 82.
The insulating trip 82 of Fig. 6, sleeve pipe 32 1 sides shown in Figure 9, be with the hexagon-head 33 of this sleeve pipe 32 be wide cardinal principle rectangle to edge lengths, central authorities offer the hole 83 that hub spindle 11 connects.
The insulating trip 82 of nut 35 1 sides shown in Figure 4 presents the circle bigger than the diameter of packing ring 36, and central authorities offer the hole 83 that hub spindle 11 connects.
Between earth connection plate 38 (conductor) and stator core 16, have the insulating trip 82 that is embedded on the hub spindle 11.
Between the stator core 17 and packing ring 36 (conductor) of opposite side, have the insulating trip 82 that is embedded on the hub spindle 11, fastening nut 35, by spring washer 37 and packing ring 36 stator core 17 is pressed to sleeve pipe 32 1 thrusters, with the stator core 16,17 under clamping core 18 and bobbin 20 states, locate and be fixed on the hub spindle 11 by sleeve pipe 32 and nut 35.
Like this, travel at bicycle 40, wheel (front-wheel 42) when rotation, rotor rotates with respect to wheel hub generator 10 stators.Consequently, permanent magnet 14 moves for the outer sideway swivel of the pole piece 74,75 of stator core 16,17.
When the N utmost point opposite face of the pole piece 74 of the stator core 16 of a side and permanent magnet 14, the pole piece 75 of the stator core 17 of opposite side and the S utmost point opposite face of permanent magnet 14, shown in the thick arrow of Fig. 2, generation is by the magnetic flux of the disc 78 → pole piece 75 of the stator core 17 of the opposite side of pole piece 74 → disc 78 → core 18 → opposite face of the stator core 16 of a side.
Be further rotated front-wheel 42, when the pole piece 75 of the pole piece 74 of the stator core 16 of a side and the stator core 17 of S utmost point opposite face, opposite side during with N utmost point opposite face, with above-mentioned opposite, generation is by the magnetic flux of the disc 78 → pole piece 74 of the stator core 16 of pole piece 75 → disc 78 → core 18 → opposite face of the stator core 17 of a side.
Be accompanied by the rotation of front-wheel 42, change, thus, can alternately produce the above-mentioned magnetic line of force, become alternating magnetic field with the magnetic pole of the permanent magnet 14 of pole piece 74,75 opposite faces of stator core 16,17.
The alternation magnetic line of force by by stator core 16,17 and core 18 produces electric current, thereby generates electricity in coiling coil 22.
At this moment, in stator core 16,17, be accompanied by passing through of above-mentioned alternating magnetic field, also can produce eddy current.But, in stator core 16,17, offer the ditch hole 15 that extends outside from the hole 13 at center, stator core 16,17 is cut off along Zhou Fangxiang at a place, and, be used for stator fastening and be fixed in the earth connection plate 38 and the packing ring 36 of positioning element 30,31 1 sides on the hub spindle 11 from its both sides, be hampered by insulating trip 82 and make that crossing over described ditch hole 15 with stator core 16,17 receives obstruction mutually, go up the effect that produces eddy current so have the Zhou Fangxiang of the disc 78,78 of stator core of being suppressed at 16,17, generating efficiency is improved.
Under the situation of embodiment, with not being set, insulating trip 82 compares, and generating efficiency can be brought up to 5.85V from 5.7V, has improved about 2.6%.
So, can reach the miniaturization and the light-weighted purpose of wheel hub generator 10, and then, the needed torque of generating electricity can be reduced.
The foregoing description is set forth for the present invention is described, should not be construed the restriction to the invention of recording and narrating in the technical scheme scope, or to the reduction of scope.Also have, the structure of each several part of the present invention also is not limited to the foregoing description, can carry out various changes in the scope of recording and narrating in the technical scheme scope.
For example, earth connection plate 38 also can be arranged on nut 35 1 sides.
Again, can also omit earth connection plate 38, an end 22a of coiling coil directly is welded in sleeve pipe 32 by scolding tin or nut 35 is first-class, or an end 22a of coiling coil is disposed at sleeve pipe 32 or nut 35 1 sides, be connected in the conductor that is connected with hub spindle 11.
Again, the insulant 80 that exists between stator core 16,17 and the positioning element 30,31 also is not limited to insulating trip 82.For example, on the contact-making surface of stator core 17 1 sides of the contact-making surface of the hexagon-head 33 of sleeve pipe 32, packing ring 36, can utilize various resinous coats etc. and form insulating barrier.
Again, the ditch hole 15 of the disc 78 of stator core 16,17 is extended and is provided with to outer peripheral edges from medium pore 13, but there is no need necessarily to connect by this form, so long as 13 stretch out from the hole, just can obtain the effect of the generation of inhibition eddy current.
Claims (7)
1. wheel hub generator, dispose permanent magnet (14) in the inboard of hub body (12), have on the hub spindle (11): be provided with around and two stator cores (16,17) of a plurality of pole pieces (74,75) of the magnetic pole opposite face of permanent magnet (14) and be disposed at coiling coil (22) between this stator core (16,17), by clamping stator core (16,17) and be arranged on positioning element (30,31) on the hub spindle (11) and two stator cores (16,17) are located and be fixed on the hub spindle (11); It is characterized in that:
In stator core (16,17), offer ditch hole (15) from the hole (13) that connects hub spindle (11) to outer peripheral edges, between two stator cores (16,17) and positioning element (30,31), be provided with insulant (80), contact with stator core (16,17) in case the conductor of fastening position parts one side is crossed over the ditch hole (15) of stator core (16,17).
2. wheel hub generator according to claim 1 is characterized in that: a positioning element (30) is arranged on and is abutted against parts (32a) on the hub spindle (11), and another positioning element (31) is and hub spindle (11) nut of screw thread combination (35) mutually.
3. wheel hub generator according to claim 1 and 2 is characterized in that: be abutted against parts (32a) and be and hub spindle (11) sleeve pipe of screw thread combination (32) mutually.
4. wheel hub generator according to claim 1 and 2, it is characterized in that: in positioning element one side of any side, dispose earth connection plate (38), one end (22a) of coiling coil (22) is electrically connected with this earth connection plate (38) formation, and the other end of coiling coil (22) is outwards drawn from hub body (12) by lead (22b).
5. wheel hub generator according to claim 1 and 2 is characterized in that: insulant (80) is the heat insulating lamella (81,82) that is embedded in hub spindle (11) and contacts and dispose with positioning element (30,31).
6. wheel hub generator according to claim 1 and 2 is characterized in that: insulant (80) is by to applying the insulating barrier that coating etc. obtains with the contacted parts of stator core (16,17).
7. bicycle is characterized in that: be mounted with claim 1 or 2 described wheel hub generators (10), this wheel hub generator (10) constitutes with headlamp (46) and/or taillight and is electrically connected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004190663A JP2006014538A (en) | 2004-06-29 | 2004-06-29 | Hub-type dynamo and bicycle |
| JP2004190663 | 2004-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1716735A true CN1716735A (en) | 2006-01-04 |
| CN100533928C CN100533928C (en) | 2009-08-26 |
Family
ID=35781094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100810387A Expired - Fee Related CN100533928C (en) | 2004-06-29 | 2005-06-28 | Hub generator and bicycle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006014538A (en) |
| CN (1) | CN100533928C (en) |
| TW (1) | TWI252192B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510169A (en) * | 2011-12-27 | 2012-06-20 | 江苏元始高科技有限公司 | Integrated built-in motor for electric-bicycle motor wheel disc |
| CN103390941A (en) * | 2013-07-23 | 2013-11-13 | 江阴市新润电器有限公司 | Bicycle hub generator capable of outputting stable voltage |
| WO2015010471A1 (en) * | 2013-07-23 | 2015-01-29 | Xia Guoqiang | Hub generator of bicycle |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI318488B (en) * | 2006-08-25 | 2009-12-11 | Ind Tech Res Inst | Electric generator |
| WO2010067682A1 (en) | 2008-12-08 | 2010-06-17 | Ntn株式会社 | Centrifugal pump device |
| JP2012101703A (en) * | 2010-11-11 | 2012-05-31 | Mitsuba Corp | Hub dynamo |
| JP5369152B2 (en) * | 2011-08-26 | 2013-12-18 | 株式会社シマノ | Stator yoke for power generation hub for bicycle and manufacturing method thereof |
| US9371826B2 (en) | 2013-01-24 | 2016-06-21 | Thoratec Corporation | Impeller position compensation using field oriented control |
-
2004
- 2004-06-29 JP JP2004190663A patent/JP2006014538A/en active Pending
-
2005
- 2005-03-29 TW TW94109740A patent/TWI252192B/en not_active IP Right Cessation
- 2005-06-28 CN CNB2005100810387A patent/CN100533928C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510169A (en) * | 2011-12-27 | 2012-06-20 | 江苏元始高科技有限公司 | Integrated built-in motor for electric-bicycle motor wheel disc |
| CN103390941A (en) * | 2013-07-23 | 2013-11-13 | 江阴市新润电器有限公司 | Bicycle hub generator capable of outputting stable voltage |
| WO2015010471A1 (en) * | 2013-07-23 | 2015-01-29 | Xia Guoqiang | Hub generator of bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006014538A (en) | 2006-01-12 |
| CN100533928C (en) | 2009-08-26 |
| TW200600396A (en) | 2006-01-01 |
| TWI252192B (en) | 2006-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20060104 Assignee: Suzhou Sanyang Electromechanical Co.,Ltd. Assignor: Panasonic bicycle Technologies Ltd. Contract record no.: 2013990000022 Denomination of invention: Dynamo arranged in the wheel hub of bicycle and the bicycle Granted publication date: 20090826 License type: Common License Record date: 20130116 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |