CN105914976A - Generator for bicycle - Google Patents
Generator for bicycle Download PDFInfo
- Publication number
- CN105914976A CN105914976A CN201610011901.XA CN201610011901A CN105914976A CN 105914976 A CN105914976 A CN 105914976A CN 201610011901 A CN201610011901 A CN 201610011901A CN 105914976 A CN105914976 A CN 105914976A
- Authority
- CN
- China
- Prior art keywords
- magnet
- generator
- bicycle
- yoke
- counterpart
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/125—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention provides a generator for a bicycle capable of improve the generation efficiency. The generator comprises a support body; a rotary body arranged to rotate relative to the center of the axis of the support body and inputted from the exterior; a coil supported by the support body; a yoke supported by the support body; and first and second magnets capable of rotating with the rotary body around the center of the axis. The yoke includes a magnet relative portion arranged between the first magnet and the second magnet.
Description
Technical field
The present invention relates to generator of bicycle.
Background technology
It is known to a kind of generator of bicycle in the past, is equipped on bicycle, along with bicycle
Driving carries out generate electricity (such as, patent document 1).
Prior art literature
Patent document:
Patent document 1: No. 5357937 publications of Japanese Patent No.
Summary of the invention
The problem that invention is to be solved
Light-weighted requirement or the consumption of motorized based on bicycle assembly for bicycle
The increase of electric power, seeks to improve the generating efficiency of generator of bicycle.
It is an object of the invention to provide a kind of bicycle electrical generator that can improve generating efficiency
Machine.
For solving the scheme of problem
(1) according to a mode of the generator of bicycle of the present invention, possess: supporting mass；
Rotary body, is arranged to rotate around axis of rotation relative to supporting mass, by from outside input rotation
Turn；Coil, is supported by described supporting mass；Yoke, is supported by described supporting mass；And first magnetic
Iron and the second magnet, it is possible to rotate around described axis of rotation together with described rotary body, described yoke
Iron includes the magnet counterpart being configured between described first magnet and described second magnet.
(2) according to a mode of described generator of bicycle, described first magnet and described
Second magnet can not rotate against.
(3) according to a mode of described generator of bicycle, described yoke also includes part
Be configured at the main part between described first magnet and described coil.
(4) according to a mode of described generator of bicycle, from described axis of rotation side
Observing to orthogonal direction, described magnet counterpart is not overlapping with described coil.
(5) according to a mode of described generator of bicycle, described magnet counterpart is compared
Described coil is positioned at outside described axis of rotation direction.
(6) according to a mode of described generator of bicycle, described first magnet possesses
Multiple magnetic poles of arrangement in circumference, described second magnet possesses the multiple magnetic poles arranged in the circumferential,
The number of magnetic poles of described first magnet is identical with the number of magnetic poles of described second magnet, described first magnet
The phase place of magnetic pole and the phase shifting predetermined angular of magnetic pole of described second magnet.
(7) according to a mode of described generator of bicycle, described predetermined angular relative to
The phase width of one magnetic pole of described first magnet and described second magnet is 15%～30%
In the range of.
(8) according to a mode of described generator of bicycle, described predetermined angular relative to
The phase width of one magnetic pole of described first magnet and described second magnet is 18%～20%
In the range of.
(9) according to a mode of described generator of bicycle, described first magnet possesses
Multiple magnetic poles of arrangement in circumference, described second magnet possesses the multiple magnetic poles arranged in the circumferential,
The number of magnetic poles of described first magnet is identical with the number of magnetic poles of described second magnet, described first magnet
The phase place of magnetic pole and the phase place of magnetic pole of described second magnet substantially uniform.
(10) according to a mode of described generator of bicycle, it is also equipped with detent mechanism,
Described first magnet and described second magnet are positioned relative to the phase place of described rotary body.
(11) according to a mode of described generator of bicycle, described yoke includes first
Yoke and the second yoke, described first yoke includes the first magnet counterpart, described second yoke
Including the second magnet counterpart, described first magnet counterpart and described second magnet counterpart structure
Become described magnet counterpart.
(12) according to a mode of described generator of bicycle, described first yoke is by many
Individual first yoke iron slice is constituted, and described second yoke is made up of multiple second yoke iron slices.
(13) according to a mode of described generator of bicycle, described first yoke iron slice and
Described second yoke iron slice is the most alternately arranged, described first magnet counterpart and described second
Magnet counterpart is alternately arranged in the circumferential.
(14) according to a mode of described generator of bicycle, described first yoke iron slice tool
Standby: the first main part of U-shaped and as the described U-shaped from described first main part
The described first magnet counterpart of part that extends to the open side of described U-shaped of one end,
Described second yoke iron slice possesses: the second main part of U-shaped and conduct are from described second main body
The part that the bottom of the described U-shaped in portion extends to the opposition side of the opening of described U-shaped
Described second magnet counterpart.
(15) according to a mode of described generator of bicycle, described first yoke iron slice and
Described second yoke iron slice is configured to, and makes described first main part and the institute of described second main part
State the opening of U-shaped on described axis of rotation direction towards on the contrary.
(16) according to a mode of described generator of bicycle, described coil is configured at institute
State inside and the described U-shaped of described second main part of the described U-shaped of the first main part
Described coil in the inside of shape, described first main part and described second main part and described
The part held between body is magnetically connected with each other.
(17) according to a mode of described generator of bicycle, the magnetic of described first magnet
Number of poles is equal with the sum of described first yoke iron slice and described second yoke iron slice, described second magnet
Number of magnetic poles equal with the sum of described first yoke iron slice and described second yoke iron slice.
(18) according to a mode of described generator of bicycle, described first yoke iron slice and
The face relative with described first magnet of described second yoke iron slice and relative with described second magnet
Stagger in the circumference of described supporting mass in face.
(19) according to a mode of described generator of bicycle, described first yoke iron slice and
Described second yoke iron slice by the magnetic of tabular in the circumference of described supporting mass lamination and formed.
(20) according to a mode of described generator of bicycle, described first magnet is relative
Being configured at radial outside in described magnet counterpart, described second magnet is relative to described magnet phase
Portion is configured at radially inner side.
(21) according to a mode of described generator of bicycle, in described axis of rotation side
Upwards, described first magnet is longer than described second magnet.
(22) according to a mode of described generator of bicycle, described rotary body possesses:
It is arranged at the outer peripheral portion of the periphery of described supporting mass；And compare described second magnet configuration in institute
Stating the wall portion in the outside in axis of rotation direction, described first magnet is arranged at described outer peripheral portion
Inner surface, described second magnet is arranged at from the described wall portion of described rotary body to described rotary shaft
The support that the inner side in heart direction extends.
(23) according to a mode of described generator of bicycle, described bicycle electrical generator
Machine is hub generator.
Invention effect
Above-mentioned generator of bicycle can improve generating efficiency.
Accompanying drawing explanation
Fig. 1 is the partial sectional view of the generator of bicycle of an embodiment.
Fig. 2 is the exploded perspective view of the generator of bicycle of Fig. 1.
Fig. 3 is the sectional view of the generator of bicycle of Fig. 1.
Fig. 4 is the sectional view of the generator of bicycle of the 4-4 line along Fig. 3.
Fig. 5 is the sectional view of the relation representing first magnet of Fig. 4 and the second magnet.
Fig. 6 is the curve map of the torque pulsation of the generator of bicycle representing Fig. 1.
Fig. 7 is the sectional view of the generator of bicycle of modified example.
Fig. 8 is the partial sectional view of the generator of bicycle of modified example.
Detailed description of the invention
With reference to Fig. 1, the hub generator as generator of bicycle is illustrated.
Hub generator 10 is so-called claw-pole type generator, possess supporting mass 12, rotary body 14,
Coil the 16, first magnet the 18, second magnet 20 and yoke 22.
Supporting mass 12 includes the hub spindle of front-wheel, and both ends are supported by the front fork F of bicycle B
For not rotating.
Rotary body 14 includes hub shell, in the periphery of supporting mass 12 using can be around as supporting mass
The mode that the axis of rotation C of the central shaft of 12 rotates is arranged.Therefore, rotary body 14 is set
One-tenth can rotate relative to supporting mass 12.Rotary body 14 possesses: the one of axis of rotation C direction
The open-ended main part 24 in side；And it is screwed into the cap 26 of the opening of main part 24.Main part
24 possess: the outer peripheral portion 28 of drum；It is arranged on the axis of rotation C of outer peripheral portion 28
The wall portion of the opposition side of the opening in direction；And in the axial both ends of outer peripheral portion 28, phase
The flange part 32 more prominent to the radial outside of rotary body 14 than outer peripheral portion 28.
Inner circumferential and the cap 26 in wall portion 30 can be supported in supporting mass rotatably via bearing 34
12.Rotary body 14 possess between supporting mass 12 and outer peripheral portion 28 from wall portion 30 to along
The direction of axis of rotation C and center side (hereinafter referred to as " the axis of rotation C's of axis of rotation C
Axial inner side ") the cylindric support 30A that extends.Flange part 32 possesses for installing
Bolt hole 32A to the spoke of not shown front-wheel.It addition, support 30A and wall portion 30
Form but it also may be split and solid in the most revolvable mode relative to wall portion 30
Fixed.It addition, support 30A can also be arranged to from cap 26 to along axis of rotation C's
The center side of direction and axis of rotation C extends.But in this case, in order to by the first magnetic
The Relatively orientation of the circumference of iron 18 and the second magnet 20 and need cap 26 and main part
The detent mechanism of 24, therefore preferably support 30A is arranged at and forms with main part 24
Wall portion 30.
Coil 16 rotary body 14 be radially arranged in supporting mass 12 and outer peripheral portion 28 it
Between.Coil 16 is hung on the coil rack 36 shown in Fig. 2.Coil 16 is by coil rack 36
It is supported by body 12 to support in the most revolvable mode.It addition, the coil rack 36 of Fig. 2 omits
The toothed portion at the both ends in axis of rotation C direction.
The first magnet 18 shown in Fig. 1 can rotate around axis of rotation C together with rotary body 14.
First magnet 18 is arranged on the inner peripheral surface of first holding member 38 with drum.Such as figure
Shown in 2, the first magnet 18 possesses the multiple magnetic pole 18A arranged in the circumferential.Multiple magnetic pole 18A
Quantity e.g. 32.
As it is shown on figure 3, the first magnet 18 is installed on outer peripheral portion via the first holding member 38
The inner surface 28A of 28.First holding member 38 and the first magnet 18 are with relative to outer peripheral portion
28 the most revolvable modes are supported by.Therefore, the first magnet 18 can be with rotary body 14 one
Rotate.First holding member 38 is such as pressed in outer peripheral portion 28.At the first holding member 38
Periphery be formed at axis of rotation C side upwardly extending protuberance 38A.Protuberance 38A is embedded in
The recess 28B along axis of rotation C direction formed on inner surface 28A.Protuberance 38A and
Recess 28B constitutes the localization machine positioned in the circumferential by the first magnet 18 relative to rotary body 14
Structure.Alternatively, it is also possible to form recess at the first holding member 38, formed at inner surface 28A
The protuberance engaged with this recess is to constitute described detent mechanism.
Second magnet 20 can rotate around axis of rotation C together with rotary body 14.Second magnet
20 outer peripheral faces being arranged on second holding member 40 with drum.As in figure 2 it is shown,
Second magnet 20 possesses the multiple magnetic pole 20A arranged in the circumferential.The number of multiple magnetic pole 20A
Amount e.g. 32.The quantity of the magnetic pole 18A of the quantity of multiple magnetic pole 20A and the first magnet 18
Identical.
As it is shown on figure 3, the second magnet 20 is installed on support 30A via the second holding member 40
Outer surface 30B.Second holding member 40 and the second magnet 20 are with relative to support 30A
The most revolvable mode is supported by.Therefore, the second magnet 20 can be with rotary body 14 one rotation
Turn.Second holding member 40 is such as pressed in support 30A.At the second holding member 40
Periphery is formed at axis of rotation C side upwardly extending recess 40A.Recess 40A is embedded in
On outer surface 30B formed at axis of rotation C side upwardly extending protuberance 30C.Recess 40A
The location positioned in the circumferential by the second magnet 20 is constituted relative to rotary body 14 with protuberance 30C
Mechanism.Alternatively, it is also possible to form protuberance at the second holding member 40, in outer surface 30B shape
Become the recess engaged with this protuberance to constitute described detent mechanism.It is possible to easily by first
Magnet and the second magnet Relatively orientation in the circumferential.
As it is shown in figure 1, on axis of rotation C direction, the first magnet 18 to the second magnet 20
Long.The position of the end of first magnet 18 side, wall portion 30 on axis of rotation C direction and
The position of the end of two magnet 20 side, wall portion 30 on axis of rotation C direction is substantially uniform.
The position of the end of first magnet 18 cap 26 side on axis of rotation C direction compares second
The position of the end of the magnet 20 cap 26 side on axis of rotation C direction is positioned at cap 26
Side.
First magnet 18 and the second magnet 20 are all with relative to the most revolvable mode of rotary body 14
It is supported by.Therefore, the first magnet 18 and the second magnet 20 can not rotate against.That is, first
Magnet 18 and the second magnet 20 are with can be relative to supporting mass 12 one together with rotary body 14
The mode that ground rotates is supported by.As it is shown in figure 5, the magnetic pole 18A of the first magnet 18 around rotation
The phase place of rotating shaft heart C and the phase dislocation around axis of rotation C of the magnetic pole 20A of the second magnet 20
Open predetermined angular D.Predetermined angular is preferably with respect to the first magnet 18 and the one of the second magnet 20
The phase width H of individual magnetic pole 18A, 20A, in the range of 15%～30%, more preferably exists
In the range of 18%～20%.
As it is shown on figure 3, yoke 22 is radially arranged in supporting mass 12 and outer at rotary body 14
Between circumferential portion 28.Yoke 22 is supported on supporting mass 12 the most revolvably.At yoke 22
The both ends in axis of rotation C direction be configured with the positioning element 12A of toroidal.Location division
Part 12A is installed on the periphery of supporting mass 12.Yoke 22 is limited by two positioning element 12A
The system movement in axis of rotation C direction.Yoke 22 possesses: supporting mass 12 radially with
Main part 42 that coil 16 is relative and the magnet counterpart 44 relative with magnet 18,22.
Observing from the direction (longitudinal direction of such as Fig. 3) orthogonal with axis of rotation C direction, magnet is relative
Portion 44 is arranged in not overlapping with coil 16 position.Magnet counterpart 44 compares coil 16
Outside axis of rotation C direction (side, wall portion 30).
As in figure 2 it is shown, yoke 22 includes the first yoke 46 and the second yoke 48.
First yoke 46 is made up of multiple first yoke iron slices 50.As it is shown on figure 3, the first yoke
Sheet 50 possesses the first main part 52 and the first magnet counterpart 54 of U-shaped.First magnet
Counterpart 54 is to extend from one end of the first main part 52 to opening 56 side of U-shaped
Part.First yoke iron slice 50 is by the magnetic of tabular lamination and shape in the circumference of supporting mass 12
Become.
First main part 52 is partially disposed between the first magnet 18 and coil 16.First magnetic
Iron counterpart 54 is configured between the first magnet 18 and the second magnet 20.From with axis of rotation C
Direction (longitudinal direction of the such as Fig. 3) observation that direction is orthogonal, the first magnet counterpart 54 is arranged in
Not overlapping with coil 16 position.First magnet counterpart 54 is compared coil 16 and is positioned at rotary shaft
Outside heart C direction (side, wall portion 30).
As in figure 2 it is shown, the second yoke 48 is made up of multiple second yoke iron slices 58.Such as Fig. 3 institute
Showing, the second yoke iron slice 58 possesses the second main part 60 and the second magnet counterpart of U-shaped
62.Second magnet counterpart 62 is to the opening of U-shaped from the bottom of the second main part 60
The part that the opposition side of 64 extends.Second yoke iron slice 58 by the magnetic of tabular at supporting mass 12
Circumference on lamination and formed.
Second main part 60 is partially disposed between the first magnet 18 and coil 16.Second magnetic
Iron counterpart 62 is configured between the first magnet 18 and the second magnet 20.From with axis of rotation C
The direction observation that direction is orthogonal, the second magnet counterpart 62 is arranged in not overlapping with coil 16
Position.Second magnet counterpart 62 is compared coil 16 and is positioned at (wall outside axis of rotation C direction
Side, portion 30).That is, the second magnet counterpart 62 relative to coil 16 in axis of rotation C direction
On be arranged in and first magnet counterpart 54 phase the same side.
First magnet 18 is arranged in the radial direction of supporting mass 12 relative to magnet counterpart 54,62
Outside.Second magnet 20 is arranged in the radial direction of supporting mass 12 relative to magnet counterpart 54,62
Inner side.
The quantity of the preferably first yoke iron slice 50 and the quantity of the second yoke iron slice 58 are equal.First yoke
The quantity of iron plate 50 is identical with the quantity of the second yoke iron slice 58.Preferably first yoke iron slice 50 and
The quantity of the sum of two yoke iron slices 58 and the magnetic pole 18A of the first magnet 18 is equal.Preferably first
The quantity of the magnetic pole 20A of yoke iron slice 50 and the sum of the second yoke iron slice 58 and the second magnet 20
Equal.
As in figure 2 it is shown, yoke 22 is by the first yoke iron slice 50 and the second yoke iron slice 58 in the circumferential
Alternately arranged and constitute.As it is shown on figure 3, the first yoke iron slice 50 and the second yoke iron slice 58 are joined
It is set to, makes the opening 64 of U-shaped of the first main part 52 and the second main part 60 in rotation
On rotating shaft heart C direction towards on the contrary.It is made up of the first main part 52 and the second main part 60
Main part 42.As shown in Figure 4, the first magnet counterpart 54 and the second magnet counterpart 62 exist
It is alternately arranged in circumference.Magnetic is constituted by the first magnet counterpart 54 and the second magnet counterpart 62
Iron counterpart 44.
The inside of U-shaped and the U-shaped of the second main part 60 at the first main part 52
Inside be configured with coil 16.Coil 16 in first main part 52 and the second main part 60
With the part between supporting mass 12 is magnetically connected with each other.It addition, magnetic connects includes the first main part
52 states directly contacted with the second main part 60 and be formed at the first main part 52 and second
The state that air-gap between main part 60 is the least.
Effect to hub generator 10 illustrates.
When bicycle B shown in Fig. 1 drives, along with the rotation of rotary body 14, the first magnet
18 rotate in the periphery of magnet counterpart 54,62.Further, along with the rotation of rotary body 14,
Second magnet 20 rotates in the inner circumferential of magnet counterpart 54,62.First magnet 18 and the second magnetic
Iron 20 rotates relative to magnet counterpart 54,62, from there through magnet counterpart 54,62
The magnetic flux that improve magnetic force passes coil 16, flows through electric current in coil 16.Hub generator
In 10, the magnetic flux of the first magnet 18 and the second magnet 20 both sides is to magnet counterpart 54,62
Produce impact, therefore compared with the situation only possessing a side, it is possible to increase through coil 16
Magnetic force.And then, along with the rotation of rotary body 14, the first magnet 18 is relative to main part 42
Rotating, thus the magnetic flux from the first magnet 18 also passes coil 16 via main part 42.
As shown in the double dot dash line L1 of Fig. 6, in the phase place of the magnetic pole 18A making the first magnet 18
In the case of the hub generator consistent with the phase place of the magnetic pole 20A of the second magnet 20, and only
Possess the situation (the solid line L4 of Fig. 6) of the first magnet 18 and only possess the feelings of the second magnet 20
Condition (the chain-dotted line L3 of Fig. 6) compares, and torque pulsation becomes big.
The phase place of the magnetic pole 18A of the first magnet 18 of hub generator 10 and the second magnet 20
The phase shifting predetermined angular D of magnetic pole 20A.Therefore, the first magnet 18 and the second magnet
The waveform of 20 cogging torques caused produces deviation.Therefore, as shown in the dotted line L2 of Fig. 6,
Phase place and second with the magnetic pole 18A making the first magnet 18 shown in the double dot dash line L1 of Fig. 6
Shown in hub generator that the phase place of the magnetic pole 20A of magnet 20 is consistent and solid line L4 only
The hub generator possessing the first magnet 18 compares, it is possible to reduce torque pulsation.
Hub generator 10 can play following effect and effect.
(1) the magnet counterpart 54,62 that hub generator 10 possesses across yoke 22 configures
The first magnet 18 and the second magnet 20.Therefore, it is possible to make yoke 22 bear two magnet
18, the magnetic flux of 20, it is thus possible to improve generating efficiency.
The phase place of the magnetic pole 18A of (2) first magnet 18 and the magnetic pole 20A of the second magnet 20
Phase shifting predetermined angular D.Therefore, with the phase place of the magnetic pole 18A making the first magnet 18
The hub generator consistent with the phase place of the magnetic pole 20A of the second magnet 20 compares, it is possible to subtract
Little torque pulsation.
(3) hub generator 10 possesses: by the first magnet 18 relative to the phase of rotary body 14
The recess 28B and protuberance 38A of location, position；And by the second magnet 20 relative to rotary body 14
The protuberance 30C and recess 40A of phase place location.Therefore, it is possible to carry out simply by magnet 18,
20 are installed to phase bit during rotary body 14.Further, the phase of the magnetic pole 18A of the first magnet 18
The phase place of the magnetic pole 20A of position and the second magnet 20 is difficult to offset.
Coil 16 in (4) first main parts 52 and the second main part 60 and supporting mass 12
Between part be magnetically connected with each other.It is thus possible, for instance with the first main part 52 and the second main part
The situation being formed with big air-gap between 60 compares, and the magnetic force applying coil 16 becomes big,
Therefore, it is possible to raising generating efficiency.
(5) first yoke iron slices 50 and the second yoke iron slice 58 by the magnetic of tabular at supporting mass
Lamination in the circumference of 12 and formed.Therefore, utilize punching press etc. to be shaped by homogenous material with use and
The situation of the yoke iron slice become compares, it is possible to the inside of suppression yoke iron slice 50,58 produces vortex flow.
Therefore, it is possible to the problem of decrease of power generation that suppression vortex flow causes.
(6) first magnet 18 to the second magnet 20 are long.Therefore, it is possible to by the first magnet 18
A part being radially arranged on the position consistent with coil 16 at supporting mass 12, it is possible to
Increase the part that the first magnet 18 is relative with yoke 22.Therefore, with the first magnet 18 to the second
The short situation of magnet 20 compares, it is possible to increase generating efficiency.
(7) cap 26 is screwed into main part 24.Therefore, cap 26 and the phase place of main part 24
Easily stagger.Magnet 18,20 is positioned at side, wall portion 30 on axis of rotation C direction, in periphery
Part 28 and from wall portion 30 extend support 30A be formed with detent mechanism.Therefore,
The phase place of one magnet 18 and the second magnet 20 is difficult to stagger.
The concrete mode that generator of bicycle can be taked is not limited to above-mentioned embodiment example
Mode.Generator of bicycle can take to be different from the various modes of above-mentioned embodiment.
The modified example of above-mentioned embodiment shown below be generator of bicycle can take various
One example of mode.
Phase place and the magnetic pole of the second magnet 20 of the magnetic pole 18A of the first magnet 18 can also be made
The phase place of 20A is substantially uniform.
Can also as it is shown in fig. 7, formed face 66D, 68D relative with the first magnet 18 and
The first yoke that face 66E, 68E relative with the second magnet 20 staggers in the circumference of supporting mass
Sheet 66 and the second yoke iron slice 68.In this case, the first yoke iron slice 66 and the second yoke iron slice
Each yoke iron slice 66,68 of 68 is different with the relation of the phase place of magnet 18,20, therefore, it is possible to press down
Torque pulsation processed.It addition, in this modified example, preferably as it is shown in fig. 7, make the first magnet 18
The phase place of magnetic pole 18A and the phase place of magnetic pole 20A of the second magnet 20 substantially uniform.
First magnet 18 length on axis of rotation C direction and the second magnet can also be made
The length of 20 is substantially uniform.In this case, as shown in Figure 8, it is possible to so that the first main body
The periphery of portion 52 and the second main part 60 is altered to the inner surface 28A closer to rotary body 14
Shape.
Thereby, it is possible to increase inside and second main part of the U-shaped of the first main part 52
The inside of the U-shaped of 60, therefore, it is possible to increase the volume number of coil 16.
By punch process etc., the first yoke iron slice 50 and the second yoke iron slice 58 can also be shaped.
Can also be constituted the first magnet 18 relative to determining that rotary body 14 positions by spline
Position mechanism.In a word, as long as the first magnet 18 can be determined relative to the phase place of rotary body 14
The mechanism of position, can use arbitrary structures.Alternatively, it is also possible to omission detent mechanism, and in system
By visually etc. determining first magnet 18 phase place relative to rotary body 14 when making.
Can also be constituted the second magnet 20 relative to determining that rotary body 14 positions by spline
Position mechanism.In a word, as long as the second magnet 20 can be determined relative to the phase place of rotary body 14
The mechanism of position, can use arbitrary structures.Alternatively, it is also possible to omission detent mechanism, and in system
By visually etc. determining second magnet 20 phase place relative to rotary body 14 when making.
The first magnet 18 can also be constituted by making holding member 38,40 or rotary body magnetization
At least one party with the second magnet 20.
Quantity and the magnetic pole of the second magnet 20 of the magnetic pole 18A of the first magnet 18 can also be made
The quantity of 20A is different.
Can also omit a side of the first yoke 46 and the second yoke 48 magnet counterpart 54,
62。
The end of first magnet 18 side, wall portion 30 on axis of rotation C direction can also be made
Position and the position of end of second magnet 20 side, wall portion 30 on axis of rotation C direction
Different.In this case, yoke 22 is configured at the first magnet 18 and the second magnetic diametrically
Part between iron 20 is magnet counterpart 44.
The present invention can also be applicable to rotary body 14 and be configured at the supporting mass 12 of drum
The generator of bicycle of inner circumferential.In this case, as generator of bicycle, example
By the contacting of wheel rim with tire or wheel, rotary body 14 is carried out as listed
The cylinder generator rotated.And, it is also possible to the present invention is suitably mounted to around bent axle also
By the generator of bicycle generated electricity as the rotation of the bent axle of rotary body.And, it is possible to
The present invention is applicable to by generating electricity as the rotation of the guide wheel of the rotary body of Rear Derailleur
Generator of bicycle.
Symbol description
B: bicycle；
10: hub generator；
12: supporting mass；
14: rotary body；
16: coil；
18: the first magnet；
18A: magnetic pole；
20: the second magnet；
20A: magnetic pole；
22: yoke；
28: outer peripheral portion；
28A: inner surface；
28B: recess (detent mechanism)；
30: wall portion；
30A: support；
30B: outer surface；
30C: protuberance (detent mechanism)；
38A: protuberance (detent mechanism)；
40A: recess (detent mechanism)；
42: main part；
44: magnet counterpart；
46: the first yokes；
48: the second yokes；
50: the first yoke iron slices；
52: the first main parts；
54: the first magnet counterparts；
56: opening；
58: the second yoke iron slices；
60: the second main parts；
62: the second magnet counterparts；
64: opening.
Claims (23)
1. a generator of bicycle, possesses:
Supporting mass；
Rotary body, is arranged to rotate around axis of rotation relative to described supporting mass, by from outward
Portion's input rotates；
Coil, is supported by described supporting mass；
Yoke, is supported by described supporting mass；And
First magnet and the second magnet, it is possible to revolve around described axis of rotation together with described rotary body
Turn,
Described yoke includes the magnet phase being configured between described first magnet and described second magnet
To portion.
Generator of bicycle the most according to claim 1, it is characterised in that
Described first magnet and described second magnet can not rotate against.
Generator of bicycle the most according to claim 2, it is characterised in that
Described yoke also includes the master being partially disposed between described first magnet and described coil
Body.
4. according to the generator of bicycle described in Claims 2 or 3, it is characterised in that
Observe from the direction orthogonal with described axis of rotation direction, described magnet counterpart not with institute
State coil overlapping.
5. according to the generator of bicycle according to any one of claim 2 to 4, its feature
It is,
Compared with described coil, described magnet opposite site is outside described axis of rotation direction.
6. according to the generator of bicycle according to any one of claim 2 to 5, its feature
It is,
Described first magnet possesses the multiple magnetic poles arranged in the circumferential,
Described second magnet possesses the multiple magnetic poles arranged in the circumferential,
The number of magnetic poles of described first magnet is identical with the number of magnetic poles of described second magnet,
The phase shifting of the phase place of the magnetic pole of described first magnet and the magnetic pole of described second magnet is pre-
Determine angle.
Generator of bicycle the most according to claim 6, it is characterised in that
Described predetermined angular is relative to a magnetic pole of described first magnet and described second magnet
Phase width is in the range of 15%～30%.
Generator of bicycle the most according to claim 4, it is characterised in that
Described predetermined angular is relative to a magnetic pole of described first magnet and described second magnet
Phase width is in the range of 18%～20%.
9. according to the generator of bicycle according to any one of claim 2 to 5, its feature
It is,
Described first magnet possesses the multiple magnetic poles arranged in the circumferential,
Described second magnet possesses the multiple magnetic poles arranged in the circumferential,
The number of magnetic poles of described first magnet is identical with the number of magnetic poles of described second magnet,
The phase place of the magnetic pole of described first magnet and the phase place substantially of the magnetic pole of described second magnet
Cause.
10., according to the generator of bicycle according to any one of claim 2 to 9, it is special
Levy and be,
It is also equipped with detent mechanism, by described first magnet and described second magnet relative to described rotation
The phase place turned positions.
11. according to the generator of bicycle according to any one of claim 2 to 10, and it is special
Levy and be,
Described yoke includes the first yoke and the second yoke,
Described first yoke includes the first magnet counterpart,
Described second yoke includes the second magnet counterpart,
It is relative that described first magnet counterpart constitutes described magnet with described second magnet counterpart
Portion.
12. generator of bicycle according to claim 11, it is characterised in that
Described first yoke is made up of multiple first yoke iron slices,
Described second yoke is made up of multiple second yoke iron slices.
13. generator of bicycle according to claim 12, it is characterised in that
Described first yoke iron slice and described second yoke iron slice are the most alternately arranged,
Described first magnet counterpart and described second magnet counterpart are alternately arranged in the circumferential.
14. according to the generator of bicycle described in claim 12 or 13, it is characterised in that
Described first yoke iron slice possesses: the first main part of U-shaped；And described first magnetic
Iron counterpart, described first magnet counterpart is the described U-shaped from described first main part
Open side from one end to described U-shaped extend part,
Described second yoke iron slice possesses: the second main part of U-shaped；And described second magnetic
Iron counterpart, described second magnet counterpart is the described U-shaped from described second main part
The part that extends to the opposition side of the opening of described U-shaped of bottom.
15. generator of bicycle according to claim 14, it is characterised in that
Described first yoke iron slice and described second yoke iron slice are configured to, and make described first main part
With the opening of the described U-shaped of described second main part court on described axis of rotation direction
To on the contrary.
16. according to the generator of bicycle described in claims 14 or 15, it is characterised in that
Described coil is configured at the inside and described of the described U-shaped of described first main part
The inside of the described U-shaped of two main parts,
Described coil in described first main part and described second main part and described supporting mass it
Between part be magnetically connected with each other.
17. according to the generator of bicycle according to any one of claim 12 to 16, its
It is characterised by,
The number of magnetic poles of described first magnet and described first yoke iron slice and described second yoke iron slice total
Number is equal,
The number of magnetic poles of described second magnet and described first yoke iron slice and described second yoke iron slice total
Number is equal.
18. according to the generator of bicycle according to any one of claim 12 to 17, its
It is characterised by,
The face relative with described first magnet of described first yoke iron slice and described second yoke iron slice and
Stagger in the circumference of described supporting mass in the face relative with described second magnet.
19. according to the generator of bicycle according to any one of claim 12 to 18, its
It is characterised by,
Described first yoke iron slice and described second yoke iron slice by the magnetic of tabular at described supporting mass
Circumference on lamination and formed.
20. according to the generator of bicycle according to any one of claim 1 to 19, and it is special
Levy and be,
Described first magnet is configured at radial outside relative to described magnet counterpart,
Described second magnet is configured at radially inner side relative to described magnet counterpart.
21. generator of bicycle according to claim 20, it is characterised in that
On described axis of rotation direction, described first magnet is longer than described second magnet.
22. according to the generator of bicycle described in claim 20 or 21, it is characterised in that
Described rotary body possesses: be arranged at the outer peripheral portion of the periphery of described supporting mass；And compare institute
State second magnet configuration wall portion in the outside in described axis of rotation direction,
Described first magnet is arranged at the inner surface of described outer peripheral portion,
Described second magnet is arranged at from the described wall portion of described rotary body to described axis of rotation side
To inner side extend support.
23. according to the generator of bicycle according to any one of claim 1 to 22, and it is special
Levy and be,
Described bicycle dynamo is hub generator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015035403A JP6445350B2 (en) | 2015-02-25 | 2015-02-25 | Bicycle generator |
| JP2015-035403 | 2015-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105914976A true CN105914976A (en) | 2016-08-31 |
| CN105914976B CN105914976B (en) | 2019-05-07 |
Family
ID=56577644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610011901.XA Active CN105914976B (en) | 2015-02-25 | 2016-01-08 | Generator of bicycle |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6445350B2 (en) |
| CN (1) | CN105914976B (en) |
| DE (1) | DE102016103089A1 (en) |
| TW (1) | TWI685181B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07143710A (en) * | 1993-11-15 | 1995-06-02 | Norimasa Motohashi | Electric motor |
| CN1590201A (en) * | 2003-08-29 | 2005-03-09 | 株式会社岛野 | Bicycle hub generator |
| CN1615572A (en) * | 2001-12-25 | 2005-05-11 | 平松敬司 | Generator |
| US20060244338A1 (en) * | 2005-04-29 | 2006-11-02 | Petersen Technology Corporation | Vertical stator double gas d.c. PM motors |
| JP2007143358A (en) * | 2005-11-22 | 2007-06-07 | Fjc:Kk | Multi-head generator |
| CN101322303A (en) * | 2006-04-20 | 2008-12-10 | 松下电器产业株式会社 | Motor |
| CN102290936A (en) * | 2011-08-11 | 2011-12-21 | 国电联合动力技术有限公司 | Large double-rotor permanent magnet generator directly driven by wind and generating set consisting of same |
| CN102310763A (en) * | 2010-07-02 | 2012-01-11 | 思考电机（上海）有限公司 | In-wheel motor and electric vehicle |
| CN102957225A (en) * | 2011-08-26 | 2013-03-06 | 株式会社岛野 | Stator for bicycle generator hub and bicycle generator hub |
| JP2013169805A (en) * | 2012-02-17 | 2013-09-02 | Seiko Instruments Inc | Small generator |
| JP2014161225A (en) * | 2014-06-10 | 2014-09-04 | M-Link Co Ltd | In wheel motor and electric vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6264182U (en) * | 1985-10-09 | 1987-04-21 | ||
| JP4457777B2 (en) * | 2004-06-28 | 2010-04-28 | 日産自動車株式会社 | Rotating electric machine |
| JP2008113480A (en) * | 2006-10-30 | 2008-05-15 | Matsushita Electric Ind Co Ltd | Motor |
| US7812500B1 (en) * | 2008-11-12 | 2010-10-12 | Demetrius Calvin Ham | Generator / electric motor |
| JP6251919B2 (en) * | 2013-03-26 | 2017-12-27 | 株式会社ミツバ | Hub dynamo |
-
2015
- 2015-02-25 JP JP2015035403A patent/JP6445350B2/en active Active
- 2015-12-29 TW TW104144185A patent/TWI685181B/en active
-
2016
- 2016-01-08 CN CN201610011901.XA patent/CN105914976B/en active Active
- 2016-02-23 DE DE102016103089.9A patent/DE102016103089A1/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07143710A (en) * | 1993-11-15 | 1995-06-02 | Norimasa Motohashi | Electric motor |
| CN1615572A (en) * | 2001-12-25 | 2005-05-11 | 平松敬司 | Generator |
| CN1590201A (en) * | 2003-08-29 | 2005-03-09 | 株式会社岛野 | Bicycle hub generator |
| US20060244338A1 (en) * | 2005-04-29 | 2006-11-02 | Petersen Technology Corporation | Vertical stator double gas d.c. PM motors |
| JP2007143358A (en) * | 2005-11-22 | 2007-06-07 | Fjc:Kk | Multi-head generator |
| CN101322303A (en) * | 2006-04-20 | 2008-12-10 | 松下电器产业株式会社 | Motor |
| CN102310763A (en) * | 2010-07-02 | 2012-01-11 | 思考电机（上海）有限公司 | In-wheel motor and electric vehicle |
| CN102290936A (en) * | 2011-08-11 | 2011-12-21 | 国电联合动力技术有限公司 | Large double-rotor permanent magnet generator directly driven by wind and generating set consisting of same |
| CN102957225A (en) * | 2011-08-26 | 2013-03-06 | 株式会社岛野 | Stator for bicycle generator hub and bicycle generator hub |
| JP2013169805A (en) * | 2012-02-17 | 2013-09-02 | Seiko Instruments Inc | Small generator |
| JP2014161225A (en) * | 2014-06-10 | 2014-09-04 | M-Link Co Ltd | In wheel motor and electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI685181B (en) | 2020-02-11 |
| JP6445350B2 (en) | 2018-12-26 |
| CN105914976B (en) | 2019-05-07 |
| DE102016103089A1 (en) | 2016-08-25 |
| JP2016158421A (en) | 2016-09-01 |
| TW201631873A (en) | 2016-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8674573B2 (en) | Direct-current motor and hub unit | |
| US20100263959A1 (en) | External-rotor electric motor with or without a planetary gear mechanism, motor vehicle with an external-rotor electric motor and a method for operating such a vehicle | |
| EP2178738B1 (en) | A generator for a bicycle | |
| KR20070114634A (en) | Coreless motor having rotors arranged concentrically and driving apparatus having the motor | |
| WO2008130139A2 (en) | Motor having rotors arranged concentrically and driving apparatus having the motor | |
| JP2010119178A (en) | Claw pole generator and bicycle generator hub | |
| WO2018180038A1 (en) | Motor and electric power steering device | |
| KR20140132216A (en) | In wheel motor system | |
| JP2023018031A (en) | Motor for electric vehicle | |
| JP2015033287A (en) | Axial gap motor | |
| CN103532328B (en) | Electric rotating machine | |
| KR101163108B1 (en) | An Electromotor for an Electric Automobile | |
| JP2006069275A (en) | Power generation hub for bicycle | |
| CN105914976A (en) | Generator for bicycle | |
| JP6974036B2 (en) | Bicycle power generator | |
| TWI712248B (en) | Generator for bicycle | |
| JP5039308B2 (en) | Rotating electric machine | |
| US20230396138A1 (en) | Electric disk motor for driving a wheel rim | |
| JP5998323B2 (en) | Bicycle generator | |
| JP3224745U (en) | Wheel power generation system | |
| JP2006187131A (en) | Permanent magnet rotary electric machine, electric machine system for on-board electric actuator employng it, and electric machine system for electric power steering system | |
| CN205440740U (en) | Drive motor | |
| JPH1052017A (en) | Generator device for bicycle | |
| CN103560617A (en) | Magnetic rubber wheel motor for electric bicycle | |
| CN107171504A (en) | A kind of high precision velocity feedback wheel hub motor based on annular magnetic coder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |