CN1063594C - Rotor in magnetic generator - Google Patents
Rotor in magnetic generator Download PDFInfo
- Publication number
- CN1063594C CN1063594C CN95103562A CN95103562A CN1063594C CN 1063594 C CN1063594 C CN 1063594C CN 95103562 A CN95103562 A CN 95103562A CN 95103562 A CN95103562 A CN 95103562A CN 1063594 C CN1063594 C CN 1063594C
- Authority
- CN
- China
- Prior art keywords
- magnet
- yoke
- radius
- rotor
- cylindrical wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- 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
Abstract
A rotor of a magnet generator wherein a plurality of arc-shaped magnets 20 are located at regular intervals within the inner periphery of a yoke where a reluctor is expansion-formed in a part of a cylindrical wall outside the radial direction, a radius (Ra) of a central portion 22a in peripheral direction of the outer periphery of each magnet is set larger than a radius (ra) of the inner periphery of a yoke cylindrical wall, and a radius (Rb) of both the ends 22b in peripheral direction is set smaller than the radius (ra) of the inner periphery of the yoke cylindrical wall.
Description
The present invention relates to the rotor in a kind of permanent magnet generator, more particularly relate to the structural improvement that is used for fixing permanent magnet, for example, relate to the technology that is effectively applied to the permanent magnet generator rotor, this permanent magnet generator is contained on the small-sized or special vehicles that resemble motorcycle, handcart or similar vehicles.
Generally,, adopt a permanent magnet generator, the permanent magnet (later on be referred to as " magnet ") of this generator utilization resemble the ferrite lattice resembling on the so small-sized or special vehicles of motorcycle, handcart or similar vehicles.
This type of permanent magnet generator comprises a rotor, on this rotor, equidistantly arrange one group of magnet, and they are fixed to the interior week of yoke, and an armature, its structure constitutes like this makes coil center on radially protuberance winding unshakable in one's determination, thus by the generator drive rotor, make rotor center on armature and rotate, make in the coil that is distributed on the armature magnetic pole and induce electromotive force.
Up to now, constituted the rotor in this class permanent magnet generator, made the magnet of a plurality of circular arcs be arranged in interior week of tubular yoke at certain intervals, the recline interior perimeter surface of yoke of the outer surface of magnet.Then, for the outer surface of magnet closely being attached on the interior perimeter surface of yoke, make the numerical value of the peripheral radius setting of each magnet equal all radiuses in the yoke in design as far as possible.
Further say, as the used conventional rotor on this type of permanent magnet generator, for the igniter of giving engine provides ignition signal, used so a kind of rotor so far, wherein by mold pressing expansion ground formation magnetic resistance spare on a position of the cylindrical wall of yoke laterally radially.Therefore, adopt such layout, make when the motor driven rotor rotates around armature, the magnetic resistance spare that expansion ground forms on the yoke is walked around signal generator for ignition (pulser), this generator is provided with near a position in the outside of rotor of permanent-magnetic power generator, signal generator for ignition produces ignition signal like this, and this signal is provided for the igniter of engine.
But what the present inventor had clarified is to have following shortcoming on the conventional rotor of this permanent magnet generator.
On the viewpoint of the production efficiency of rotor, useful is reduces a magnet multipole magnetized of magnet number.In addition, on the viewpoint of the correlation between effective use of the output of permanent magnet generator and magnet, the neutral fraction (not producing the position of magnetic field intensity) of useful is magnet is shortened length, on above-mentioned viewpoint, useful is that each magnet length (being called " circumferential length " later on) in a circumferential direction is longer.
On the other hand, when with being embossed on the yoke when forming magnetic resistance spare with extended mode, on propagation direction, be subjected to a pulling force by the barrel that constitutes magnetic resistance spare owing to mold pressing, the radius on week and its peripheral part are out of shape on such direction in the yoke on magnetic resistance spare position whereby, promptly be reduced to less than on the direction of the value of all radiuses in the yoke before the mold pressing, thereby reduced the circularity of yoke.
And, when the magnet with long peripheral length is distributed on the periphery edge of the inner rim at magnetic resistance spare place and yoke, its circularity is lowered as mentioned above, the recline inner rim of yoke of the neighboring opposed end of magnet, thus magnet is brought into such state, be that magnet is centroclinal to yoke, make and in yoke, be equipped with under the state of a plurality of magnet that the interior diameter part of group of magnets diminishes.
When the interior diameter of group of magnets becomes hour, the rotor that rotates around armature is hindered by armature easily.Yet,, design the space between armature and the rotor (air gap) greatlyyer in advance for fear of this obstruction.But, big if this air gap becomes, then reduce the output (generate output) of permanent magnet generator.
The purpose of this invention is to provide the rotor in a kind of permanent magnet generator, wherein, in order to get rid of above-mentioned defective, be contained in magnet on the yoke rightly, on this yoke, be formed with magnetic resistance spare with extended mode, and avoided reducing on the group of magnets interior diameter, make with the air gap of armature and can set with a little value.
For this reason, the rotor that provides a kind of permanent magnet generator to end, wherein on the interior week of cylindrical shape yoke, arrange one group of circular arc magnet at interval, the neighboring of the magnet yoke that reclines, on a position of the cylindrical wall of this yoke, form a magnetic resistance spare with extended mode ground radially outwardly, it is characterized in that: each magnet and the interior point of contact of this yoke between the neighboring radius of mid portion be set at greater than this yoke internal diameter; Relative end, the neighboring of each magnet separates with the yoke inner rim.
As mentioned above through measuring and calculating, when both the circularity of convenient yoke is reduced as mentioned above the periphery mid portion of each magnet also just further near magnet to the centroclinal state of yoke, magnet can be avoided to the centroclinal state of yoke.So, can avoid being equipped with on the yoke under a plurality of magnet states, the internal diameter of group of magnets reduces.Thereby can avoid rotor to be hindered the generation of this situation by armature in advance, the air gap of setting between rotor and the armature with the high value becomes unnecessary.
Description of drawings is as follows:
Fig. 1 is a local plan view that amplifies, among its embodiment of expression according to permanent magnet generator upper rotor part of the present invention, and the correlation between yoke and the magnet.
Fig. 2 (a) and 2 (b) are the plan views that is used for explaining its effect.
Fig. 3 represents the embodiment according to permanent magnet generator rotor of the present invention, and Fig. 3 (a) is a plan view, and Fig. 3 (b) is the preceding profile that the line b-b along Fig. 3 (a) cuts open.
In this embodiment, comprise a yoke, a plurality of magnet and cylindrical shape magnetosheath according to the rotor on the permanent magnet generator of the present invention.
Yoke 11 is made by magnetic material and is integrally constituted, the cross section is circular drum, it has the basal surface that a surface and of opening wide is blocked, and magnetic resistance spare 13, magnetic resistance spare 13 has on the circumference and the preset width axially, and relative with pulser 39, this magnetic resistance spare radially outwards is formed on the cylindrical wall 12 with mold pressing.Axis hole 15 is opened the central authorities of the retaining wall 14 on the bottom surface of yoke 11, being used to hold one is directly connected on the engine, do not give the axle bush of expression, a pair of circular hole 16 that is used to install the yoke positioning fixture during magnet in assembling is formed on the position of 180 ° of phase differences on axis hole 15 concentric circles laterally.In addition, on a concentric circles line, also be formed equidistantly the one group of notch 17 (quantity is 12 on this embodiment) that is used to hold the magnet positioning fixture in a circumferential direction at the peripheral position of yoke 11 retaining walls 14.
On this embodiment, magnetic resistance spare 13 forms at a position of the cylindrical wall 12 of yoke 11 radially outwardly, thus, on the cylindrical wall 12 of yoke 11, this position of the residing cylindrical wall in position of magnetic resistance spare 13 and its periphery is subjected to pulling force, make on the cylindrical wall 12 of yoke 11, there is the radius (rb) littler than pure radius of circle (ra) at this position of the residing cylindrical wall in position of magnetic resistance spare 13 and its periphery.
In addition, the a plurality of projections 18 (quantity is 8 in this embodiment) that are used for fixing cover axially go up to projecting inward formation, its as from the outside to the protuberance shelves wall 14 part and be disposed on the bottom surface of yoke 11 retaining walls 14, equidistant in a circumferential direction concyclic heart is formed between one group of circular hole 16 and the one group of notch 17, these projections 18 with the mode of stretching out by folding and unfolding in location hole, this location hole is formed on putting of being used for fixing.
In addition, be used for this one group of internal thread hole 19 that cooling fan is installed and open retaining wall 14 in yoke 11, this screwed hole is equidistant on circumference, is positioned on the concentric circles, near one group of circular hole 16.
In this embodiment, the rotor on the permanent magnet generator is constructed to 4 magnet 20.Say that simply total circumferential length (L) of the back surfaces of each magnet 20 is taken as and accounts for 1/4 of yoke cylindrical wall 12 inner peripherys length, thereby is provided with quite long length.Therefore, from the production efficiency of magnet with effectively on the viewpoint of usefulness, these factors are advantages.
In this embodiment, on the circular arc back surfaces 22 of each magnet 20, with the radius on the pars intermedia on the value setting circumferencial direction 22a of the radius on the opposed end that is different from circumferencial direction 22b, promptly the radius (Ra) on the middle part is set greater than the radius of in the design formerly cylindrical wall 12 inner rims of yoke 11 being set (ra) on the circumferencial direction 22a of back surfaces 22 in advance.Say that further radius (Rb) on opposed end on the circumferencial direction 22b of back surfaces 22 decide less than in advance to the radius (ra) of the interior week setting of yoke cylindrical wall 12.At this, radius (ra) is in advance interior week of yoke cylindrical wall 12 to be set, the radius (ra) in the situation that the corresponding yoke cylindrical wall 12 of this radius is pure circles.By the way, circumferential length La between the interior point of contact of two circular arcs is set 2/3 of the whole neighboring length L that is about each magnet, and the neighboring of each magnet comprises two circular arcs being drawn by the circular arc of being drawn by the radius R a of mid portion 22a and radius R b by relative end 22b on the circumferencial direction of each magnet neighboring
Form the abdominal surface 21 of magnet 20, thereby provide and a circular shape that circle is concentric, this circle limits the inner rim of the cylindrical wall 12 of yoke 11, and its value of radius (Rc) of setting this abdominal surface compares lessly with the inner rim radius (ra) of yoke cylindrical wall 12, differs one by magnet 20 amount that radially thickness limited.In addition, because magnet 20 is hardened in the mode of pushing with mould, and baking on producing after this, the profile of magnet 20 is set as requested by the structure that preestablishes mould.
Further say, before assembling, integrally form inward flange portion 33, thereby on the bottom of cover 30 cylindrical wall 31, provide an annular shape.The interior diameter of this inward flange portion 33 is established the diameter of arranging that this interior diameter equals circular hole 16 and 16 less than the diameter of arranging that is arranged in one group of projection 18 on the yoke 11, or more bigger.Location hole 34 quantitatively equals one group of projection 18 quantity (this number is 8 in this embodiment) of yoke 11, open on the middle part of inward flange portion 33, the one group of projection 18 that cooperates yoke 11 by this way constitutes each location hole 34 can receive each projection 18.
Further say, form one group of notch 35 (quantity is 8 in this embodiment), the inner rim in inward flange portion 33 is provided with semi-circular shape substantially, can be arranged out by these group 35, one groups of circular holes 16 of notch and one group of whole screw 19 that constitutes.In addition, by being bent, the inner rim of inward flange 33 forms rigidity backing portion 36 in comprising total circumference range of notch 35.Be processed to form rigidity backing portion 36 by drawing, make the inner rim of inward flange 33 in the whole circumference scope, bend to a predetermined altitude vertically to the inside, make when grip 30 is pressed into, can present satisfied rigidity along portion.
Secondly, the main explanation of use according to the rotor of permanent-magnetic power generator assembly working of the parts of said structure will be provided.At first, be pressed into cover 30, wherein a plurality of magnet 20 (quantity is 4 in this embodiment) are arranged on yoke 11 with ring-type.
In the inward flange portion 33 of cover 30, form rigidity backing portion 36, cover 30 is packed into rightly.In the state after packing into, the recline basal surface of yoke 11 retaining walls 14 of the inward flange portion 33 of cover, the recline top surface 25 of 20 groups of magnet of the outward flange portion 32 of cover 30.Say that further be pressed into cover 30, whereby, first extension 37 is formed between the group of magnets 20, thereby be implemented between in groups the magnet 20 along the circumferential direction relative positioning and chain.
In addition, be pressed into cover 30, whereby, make cover 30 outer surface install to the interior perimeter surface 21 and the inclined surface part 23 of magnet 20 tightly, this is organized magnet 20 radially to extrapolation, feasible handle is in the mid portion of the circumferencial direction of magnet 20 back surfaces 22 and brings the state of being pressed against the interior perimeter surface of yoke cylindrical wall 12 into, therefore finishes radial location.Under this state, the back surfaces 22 of magnet 20 is brought into such state, promptly the interior perimeter surface of yoke cylindrical wall 12 is approached in the middle part on its circumferencial direction 22a, makes the internal diameter of cover 30 concentric with the internal diameter (ra) of yoke cylindrical wall 12.Above-mentioned internal diameter is determined by the internal diameter (Rc) of magnet.
Subsequently, the protrusion end of the projection 18 of yoke 11 is fixed, and above-mentioned protuberance is received through overlapping 30 location hole 34, then, one group of projection 18 after fixing whereby, cover 30 is fixed to the retaining wall 14 of yoke 11 with annular in the scope of the whole circumference limit of inward flange portion 33.In this state, along the circumferential direction this group magnet 20 is positioned and rotates Be Controlled with respect to the swing of yoke.
Next, plasticising instrument (not shown) is inserted 30 li in cover, the space that forms between the yoke retaining wall of cover 30 cylindrical wall 31 and the magnet end surface element on the yoke retaining wall side is outwards expanded with annular, or at least the magnet end surface on the yoke retaining wall side outwards with annular expansion, thereby form second extension 38, whereby, this group magnet is located vertically and is fixing.After this, upwards extract the plasticising instrument 30 out from overlapping.By the rotor on the permanent magnet generator shown in the above technology shop drawings 3.
Shown in Fig. 2 (a), under general case, wherein make magnet 20 ' back 22 ' radius of curvature R ＇ equal the pure radius of circle (ra) of yoke cylindrical wall 12 as much as possible, when the interior week of the plastic deformation of this magnet 20 ' be positioned at yoke 11 is gone up, magnet 20 ' radially slope inwardly widely.Promptly, shown in Fig. 2 (a), magnet 20 ' the opposed end of back surfaces 22 ＇ recline interior week of yoke cylindrical wall 12 parts that are expanded and are out of shape, wherein internal diameter becomes minor diameter rb, therefore, magnet back surfaces 22 ' and yoke cylindrical wall 12 in the space G ＇ that forms between week be exaggerated, make magnet 20 ' become to the yoke cylindrical wall 12 centers eccentricity value E that tilts greatly.Then, magnet 20 ' circumferential length become long more, the expansion deformation of yoke cylindrical wall 12 is big more, the back surfaces 22 of magnet ' and interior week of yoke cylindrical wall 12 between the space G ＇ that forms big more.
But, in this embodiment, with than the middle part radius (Ra) on the big value setting magnet 20 circular arc back surfaces 22 circumferencial direction 22a of interior week institute's predefined radius (ra) of the cylindrical wall 12 of yoke 11, with the little value setting of interior week institute's predefined radius (ra) than the cylindrical wall 12 of yoke 11, radius on the opposed end on the circumferencial direction 22b (Rb), even on the inner rim of the yoke cylindrical wall 12 of expansion deformation, also can avoid the radially intilted phenomenon of magnet 20 to magnet configuration.Promptly, shown in Fig. 2 (b), interior circumferential portion reclines, because the expansion deformation of yoke cylindrical wall 12, the position that internal diameter becomes minor diameter (rb) is the opposed end of the mid portion on the circumferencial direction of back surfaces 22 of magnet, whereby, the space (G) that forms between the interior week of the back surfaces 22 of magnet and yoke cylindrical wall 12 is difficult to centroclinal to yoke cylindrical wall 12, even total peripheral length (L) of magnet increases, as long as it is the same that the interval between the opposite end of pars intermedia 22a keeps, do not increase the space (G) that forms between week in magnet back surfaces 22 and the yoke cylindrical wall 12, and keep a predetermined value, influence is limited to the degree of the circularity minimizing of yoke cylindrical wall 12.
Can obtain following advantage by the foregoing description.
(1) magnetic resistance spare is formed on the yoke cylindrical wall with extended mode, in this case, even on interior all radiuses of the yoke cylindrical wall of this magnetic resistance spare and its peripheral skirt direction that all radiuses are little in becoming than the yoke in the position of above-mentioned magnetic resistance spare, reduce circularity, the middle part of magnet back surfaces also only reach with the yoke cylindrical wall in the state that reclines of Zhou Jingchang, make and can avoid the centroclinal state of magnet to the yoke cylindrical wall.
(2) installing on this yoke under the situation of a plurality of magnet, by last (1), the internal diameter that can prevent group of magnets diminishes, and can prevent the situation that rotor is hindered by armature in advance whereby, and feasible becoming by big setting value rotor and the air gap between the armature there is no need.
(3) by the 2nd, can be by big setting value armature volume, making increases the generate output of permanent magnet generator upper rotor part.Further say, can make the permanent magnet generator compactness with little setting value air gap, in light weight.
(4) even magnet has long total circumferential length, the situation of the approaching yoke cylindrical wall inner rim that reclines of the back surfaces mid portion of this magnet, thus can avoid the inclination of magnet to yoke cylindrical wall center.As a result, might use magnet, thereby improve the production efficiency of permanent magnet generator rotor with oval Zhou Changdu.Say that further quantity is made the neutral portion of magnet lessly, can effectively utilize magnet more, can improve the generate output of permanent magnet generator.
(5) under the state of engine rotation, the yoke cylindrical wall is subjected to acting on the centrifugal force on the magnet, make the very big distortion of formation on the position between the adjacent magnets, but, with general case phase specific energy the action of centrifugal force point is separated from each other, the opposite end of magnet reclines the interior week of yoke in general case, thereby reduces the distortion of yoke cylindrical wall, can change the air gap that constitutes between pulse member and the magnetic resistance spare to control lessly.
With reference to embodiment, provided the detailed description of the invention that the present inventor finished, still, the present invention is not limited to the foregoing description.What there is no need is to make various modifications to the present invention in the scope of not leaving technical essential.
For example, the little value of all radiuses in radius on the opposed end on magnet back surfaces circumferencial direction there is no need to limit and is provided with than yoke, in this case, circumferencial direction two ends of magnet back surfaces can be set and equal all radiuses in the yoke, or form a straight line.
As mentioned above, according to the present invention, can be contained in magnet rightly on the yoke, this yoke is formed with a magnetic resistance spare with extended mode ground, and avoids the magnet internal diameter to reduce.
Claims (6)
1. the rotor on the permanent magnet generator, wherein on the interior week of cylindrical shape yoke, arrange one group of circular arc magnet at interval, the neighboring of the magnet yoke that reclines, on a position of the cylindrical wall of this yoke, form a magnetic resistance spare with extended mode ground radially outwardly, it is characterized in that: each magnet and the interior point of contact of this yoke between the neighboring radius of mid portion be set at greater than this yoke internal diameter; Relative end, the neighboring of each magnet separates with the yoke inner rim.
2. according to the rotor on the permanent magnet generator of aforesaid right requirement 1, it is characterized in that the radius on each magnet neighboring opposed end is set with the value less than the radius on week in the yoke cylindrical wall.
3. according to the rotor on the permanent magnet generator of aforesaid right requirement 1, it is characterized in that, circumferential length between the interior point of contact of two circular arcs be set at each magnet whole neighboring length 2/3, the neighboring of each magnet comprises the circular arc that is marked by the radius of described mid portion by on the circumferencial direction of each magnet neighboring, with two circular arcs that marked by relative end radius.
4. require rotor on 1 the permanent magnet generator according to aforesaid right, it is characterized in that the magnet number is 4, set the whole circumference length of each magnet periphery with about 1/4 of the inner circumferential length of cylindrical wall.
5. according to the rotor on the permanent magnet generator of aforesaid right requirement 1, it is characterized in that, form the interior perimeter surface of each magnet, thereby provide the concentric circular arc of circle with the inner rim that limits cylindrical wall, the radius of the inner rim of the radius ratio cylindrical wall of perimeter surface is little in each magnet, and the difference of the two equals the radial thickness of this magnet.
6. according to the rotor on the permanent magnet generator of aforesaid right requirement 1, it is characterized in that, multipole magnetized this magnet that is used for partly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP79474/94 | 1994-03-25 | ||
| JP79474/1994 | 1994-03-25 | ||
| JP6079474A JPH07274421A (en) | 1994-03-25 | 1994-03-25 | Rotor of magnetic generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1127439A CN1127439A (en) | 1996-07-24 |
| CN1063594C true CN1063594C (en) | 2001-03-21 |
Family
ID=13690895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95103562A Expired - Lifetime CN1063594C (en) | 1994-03-25 | 1995-03-25 | Rotor in magnetic generator |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH07274421A (en) |
| KR (1) | KR100267725B1 (en) |
| CN (1) | CN1063594C (en) |
| FR (1) | FR2717963B1 (en) |
| IT (1) | IT1280814B1 (en) |
| TW (1) | TW256960B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9504773A (en) * | 1995-10-04 | 1997-09-02 | Brasil Compressores Sa | Rotor with permanent magnets for electric motor |
| EP1492216A4 (en) | 2002-03-29 | 2011-03-23 | Panasonic Corp | Motor |
| KR20040105698A (en) * | 2002-05-29 | 2004-12-16 | 마츠시타 덴끼 산교 가부시키가이샤 | Motor generator |
| GB201016324D0 (en) * | 2010-09-28 | 2010-11-10 | Nexxtdrive Ltd | An electrical machine and a rotor for an electrical machine |
| JP6657894B2 (en) * | 2015-12-09 | 2020-03-04 | Tdk株式会社 | Sintered magnet for motor and motor |
| CN106411008B (en) * | 2016-11-24 | 2019-06-21 | 东昌电机(深圳)有限公司 | The electric machine structure of electric wheelchair |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492638A (en) * | 1974-04-24 | 1977-11-23 | Siemens Ag | Electrical motor having permanent magnet excitation |
| JPS60187248A (en) * | 1984-03-06 | 1985-09-24 | Nippon Denso Co Ltd | Rotor of magneto generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1340636A (en) * | 1962-12-06 | 1963-10-18 | Bosch Gmbh Robert | Magnetic flywheel for ignition and lighting magneto |
| JP2507113Y2 (en) * | 1990-06-22 | 1996-08-14 | 株式会社三ッ葉電機製作所 | Magnet generator |
-
1994
- 1994-03-25 JP JP6079474A patent/JPH07274421A/en active Pending
-
1995
- 1995-03-09 TW TW084102250A patent/TW256960B/en active
- 1995-03-21 FR FR9503283A patent/FR2717963B1/en not_active Expired - Fee Related
- 1995-03-21 IT IT95TO000214A patent/IT1280814B1/en active IP Right Grant
- 1995-03-23 KR KR1019950006260A patent/KR100267725B1/en not_active IP Right Cessation
- 1995-03-25 CN CN95103562A patent/CN1063594C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492638A (en) * | 1974-04-24 | 1977-11-23 | Siemens Ag | Electrical motor having permanent magnet excitation |
| JPS60187248A (en) * | 1984-03-06 | 1985-09-24 | Nippon Denso Co Ltd | Rotor of magneto generator |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1280814B1 (en) | 1998-02-11 |
| ITTO950214A1 (en) | 1996-09-21 |
| KR950035006A (en) | 1995-12-30 |
| TW256960B (en) | 1995-09-11 |
| KR100267725B1 (en) | 2000-10-16 |
| ITTO950214A0 (en) | 1995-03-21 |
| FR2717963A1 (en) | 1995-09-29 |
| FR2717963B1 (en) | 1996-09-27 |
| CN1127439A (en) | 1996-07-24 |
| JPH07274421A (en) | 1995-10-20 |
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