JP2004282995A - Electric motor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To position stator units in an electric motor relatively with high accuracy to each other by a simple method, and to reduce the cost of the electric motor and to suppress the cogging torque of the electric motor. <P>SOLUTION: The electric motor is equipped with a motor housing, a rotor which has a magnetic pole arranged so as to be continuous in an azimuth direction to a rotary shaft and is rotatably supported around the shaft by the motor housing, and a stator that is arranged in the motor housing and composed of the stator units which are equipped with magnetic pole piece heads facing one or more rotor discs of the rotor and arranged around the rotary shaft. The stator units are embedded in a hardened embedding material which forms a stator unit supporting body to fix the stator units relatively to each other and relatively to the motor housing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention provides a motor housing, a magnetic pole disposed so as to be continuous in an azimuthal direction with respect to the rotation axis, a rotor rotatably supported by the motor housing so as to be rotatable about the rotation axis, and at least the rotor An electric motor, in particular a brushless electric motor, comprising a stator arranged in a motor housing, comprising a stator unit arranged around a rotation axis, having a pole piece head facing one rotor disk. Motor related.

  Electric motors of this kind are known from the prior art.

  However, in such an electric motor, there is a first problem of positioning the stator units relative to each other with the highest possible accuracy and the simplest possible means.

  In addition, in the case of such an electric motor, there is always a second problem that the electric motor can be configured at the lowest possible cost in view of the problem of cost.

  Furthermore, such an electric motor has a third problem of suppressing the cogging torque of the motor as much as possible.

  The first object is, according to the invention, in an electric motor of the type mentioned at the outset, in which the stator unit is embedded in a hardened embedding material, the hardened embedding material interlocking the stator units. The problem is solved by forming a support for the stator unit, which is fixed relatively and relatively to the motor housing.

  According to the present invention, according to the present invention, in an electric motor of the type mentioned at the outset, the motor housing has a plurality of housing parts, at least one of which has a stator with a stator unit. The housing segment is configured as an accommodating housing segment, the housing segment supporting the first shape joining member on one end side, and supporting the second shape joining portion on the opposite end side, The two form-fitting members are solved by being configured to be able to engage another first form-fitting member of another housing part.

  The advantage of this solution is that the motor housing as a whole is thus constructed in modular form, possibly from different housing parts, in particular from, for example, one or more housing segments, so that different types of electric motors, i.e. It can be seen, for example, that electric motors with different outputs can be manufactured in a simple and thus particularly low-cost manner.

  A basic embodiment of the electric motor according to the invention is characterized in that the motor housing has, as a separate housing part, another second shape-coupling member and cooperates with the first shape-coupling member. Preferably, it is configured to have a cover.

  Furthermore, in the motor housing according to the basic embodiment, the motor housing includes, as another housing part, another first shape joint member and a second housing cover cooperating with the second shape joint member. Conveniently configured to have.

  Furthermore, in a basic embodiment of the electric motor according to the invention, the rotor is preferably configured to include a first rotor disk with a magnetic pole attached to the first pole piece head of the stator unit of the housing segment. .

  In principle, in this type of case, the rotor is configured with only one rotor disk, in which case the second pole piece of the stator unit of the housing segment, facing the first pole piece head It is conceivable to attach the head with a magnetic coercive, which is arranged relatively stationary with respect to it, from the pole piece head which is assigned to one pole to the other which is attached to another pole. To actuate the magnetic flux to close itself.

  Alternatively, another embodiment provides that the rotor includes a second rotor disk non-rotatably coupled to the first rotor disk, the poles of which face the first pole piece head. , Attached to the second pole piece head of the stator unit of the housing segment, whereby it is possible to improve the rotational characteristics of the electric motor through the two rotor disks of the rotor.

  On the basis of the basic embodiment of the electric motor according to the invention comprising a single housing segment, in an expanded embodiment of the electric motor according to the invention, the motor housing comprises, as a housing part, a form-fitting member. A first housing segment and a further housing segment for accommodating another stator having another stator unit, the further housing segment having the same form-locking member as the first housing segment. In addition, it is intended to form-connect with the corresponding other shape-connecting member of the first housing segment via the shape-connecting member.

  That is, in this embodiment of the electric motor according to the present invention, two housing segments are employed instead of one housing segment, so that different electric motors having at least partially identical components can be manufactured. It is possible to manufacture a high-power electric motor that can use a simple module system.

  In this case, at least one further housing segment is identical to the first housing segment, so that when manufacturing different electric motors, the same component is used for the housing segment that is the most expensive housing part. Can be used, whereby the most convenient electric motor can be manufactured.

  In this type of system, the form-fitting members hold the housing segments aligned with respect to one another relative to each other, whereby the shape-fitting members make the housing units relative to each other relative to the stator units of the housing segments. If a high degree of alignment accuracy can be assured in a simple manner, electric motors of different construction types can be manufactured particularly advantageously.

  A particularly advantageous solution is to provide one housing segment between the opposing pole piece heads of one housing segment and the pole piece head of the other housing segment following this one housing segment. It is intended that a rotor disk is provided which has on its opposite side a pole piece facing the pole piece head of the other housing segment and the pole piece head of the other housing segment.

  With a rotor disk of this kind, the magnetic field that can be generated by both housing segments can be used in the best way to drive the rotor.

  At this time, it is particularly advantageous if the magnetic poles are respectively arranged on opposite sides of a common magnetic coercive body which guarantees the magnetic coercivity of the magnetic poles facing the different pole piece heads. .

  The configuration of the housing segment itself has not been described in detail in relation to the description of the embodiments so far. In principle, the housing segments can be configured in various ways.

  One particularly advantageous form of construction of such a housing segment is that the stator unit is embedded in a hardened embedding material, which hardens the stator units relative to each other and It is intended to form a support for the stator unit, which is fixed relative to the respective housing segment.

  The third object is, according to the invention, in an electric motor of the type mentioned at the outset, wherein the pole piece head has a first surface shape and the poles have a second surface shape, and both The surface shapes are configured such that when the surface shapes begin to overlap, the overlapping surface increases non-linearly with the path length of the rotary trajectory, and moves along the rotary trajectory relatively to each other. Solved by

  The advantage of the solution according to the invention is that the interaction between the respective poles and the respective pole piece heads is different from the linear increase at the start of the overlap, so that the start of the surface shape overlaps. It can be seen that it can be configured so that its effect on the cogging torque is reduced.

  Alternatively, the third problem mentioned above is that in an electric motor of the type mentioned at the outset, the pole piece head has a first surface shape and the poles have a second surface shape, and these surfaces The shape is such that the overlapping surface is configured to decrease non-linearly with the path length of the rotating orbit just before the end of the overlapping of these surface shapes, and by moving along the rotating orbit relative to each other. Will be resolved.

  Even with such a configuration of the surface shape, the influence of the overlap on the cogging torque, which is generated when the overlap of the surface shapes ends, is reduced, and in particular, the cogging torque of the electric motor can be reduced.

  This kind of non-linear change of the overlapping surface, either at the start of the overlap or just before the end of the overlap, can be realized particularly advantageously when the first and second surface shapes are different.

  In that case, the differences can be varied. One solution contemplates that the first and second surface shapes are different for each outer contour.

  Alternatively or additionally, it is intended that the first surface shape and the second surface shape are different with respect to their respective areas.

  Additionally or alternatively, yet another feature of the difference between the first and second surface shapes is that the first surface shape and the second surface shape are relative to the rotational trajectory of the second surface shape. In that the non-linear changes in the overlapping surface can be realized at the beginning of the overlap or just before the end of the overlap.

  In the electric motor, in order to simultaneously obtain the highest possible torque in addition to the reduction of the cogging torque, the second surface shape moves in the rotation orbit so that the first surface shape maximizes the first surface shape. It is preferably intended that the first surface shape and the second surface shape can be brought to a position covered by the overlapping surface of.

  At this time, the maximum overlapping surface is in principle smaller than the area of each surface shape.

  However, it is particularly advantageous if the largest overlapping surface of the surfaces corresponds to at least one of the surface shapes.

  In this case, it is suitable that the idea of the present invention can be embodied by making the other surface shape wider than one surface shape.

  One embodiment is embodied such that the other surface shape has a greater length in the direction of the rotational trajectory than the largest overlapping surface.

  In this case, it is preferred that one surface shape is intended to extend in the direction of the rotational trajectory beyond a region containing at least one edge region, which corresponds to the largest overlapping surface.

  By providing at least one edge region of this kind, the non-linear increase and / or the non-linear decrease of the overlapping surface at the beginning of the overlapping and / or immediately before the end of the overlapping is achieved, while maintaining the maximum overlapping surface. In order to minimize the cogging torque as much as possible, additional degrees of freedom are obtained.

  In that case, it is particularly advantageous if there are edge regions on both sides of the region corresponding to the largest overlapping surface, as viewed from the direction of the rotational trajectory.

  A particularly advantageous concept in which the cogging torque can be advantageously reduced is that the other surface shape extends over a wider angular range in the direction of the rotational trajectory than 360 ° divided by the number of stator units. It is intended to have

  That is, this kind of length of the other surface shape is such that this surface shape extends beyond one stator unit over a large area of the path along the rotary trajectory, whereby In the same way, ie, interact with each other.

  The type of configuration of the end contour of the surface shape facing the direction of the rotation trajectory has not been described in detail so far.

  For example, the solution according to the invention is particularly advantageous if at least one of the surface shapes has an end profile extending transversely to the rotational trajectory, which extends in a state different from the radial direction. Can be embodied.

  These types of differences can be embodied in various forms.

  For example, such a difference can be embodied by the end profile extending at an acute angle to the radial direction intersecting it.

  Alternatively, it is also conceivable that the end profile itself is not straight but has a curved transition, even in the case of a curved transition, at least in part, between the end profile and the radial direction intersecting it. An angle occurs.

  In this connection, it is intended, for example, that the end contours which intersect each other when the overlap begins are different and radially different.

  On the other hand, as a supplement or alternative, it is intended that the end contours which intersect each other immediately before the end of the overlap are different and radially different.

  The detailed description has not been given in relation to the specific configuration of the surface shape. For example, one particularly advantageous embodiment contemplates that one of the surface shapes is configured to resemble a polygon.

  Further, such polygons can have a wide variety of embodiments. For example, it is conceivable that one of the surface shapes is configured to resemble a trapezoid.

  As another alternative, one surface shape may be configured as a rectangle, and the special shape of the rectangle may be a square.

  Alternatively, a surface shape similar to a parallelogram may be provided.

  Another advantageous solution is intended for one of the surface shapes to be configured substantially in the form of an annular segment, i.e. to be based on the basic shape of the annular segment, in which case an annular ring of this kind Modification of the section is also conceivable.

  An advantage of the above-described solution according to the invention is that the cured embedding material allows exceptionally simple and effective protection of the stator unit, which also imposes special requirements on the construction of the stator unit. Without fixing the stator units in a relatively simple manner relative to each other and to the motor housing or housing segments, thereby opening up the possibility of positioning the stator overall in the motor housing as a whole. Can be seen.

  A further advantage of this solution can be seen in that the embedding material for the stator unit makes it possible to realize a particularly simple and accurate positioning of the stator unit. Because the stator unit can be very easily and accurately aligned for embedding in the embedding material, the embedding of the stator unit in a hardenable embedding material and the hardening of the embedding material are This is because it does not lead to any relative positioning error of the units.

  It is particularly preferred that the cured embedding material is an electrically insulating material. This allows the use of an electrically insulating support, on which the stator unit can be directly embedded, in particular with its coil, and additional protection for maintaining electrical breakdown strength. No action is required.

  This type of plastic material may be, for example, a thermoplastic resin or a thermosetting resin.

  The embedding material is a catalytically polymerized material, whereby the embedding of the stator unit is carried out without the use of expensive injection molding techniques, by simply casting the shape holding the stator unit. Has proven to be particularly favorable.

  In particular, it is highly advantageous from a manufacturing engineering standpoint that stable and accurate positioning of the stator units relative to each other is performed substantially only through the support.

  The support forms at least one part of the motor housing or the housing segments, whereby not only does the support serve to position and protect the stator units relative to each other, but at the same time to one part of the motor housing. If the number of parts of the electric motor according to the present invention and the manufacturing cost associated therewith are further reduced by forming a part, the mechanical structure of the electric motor according to the present invention can be realized particularly easily in design. can do.

  From the point of view of the lowest possible production, the support forms at least one housing segment of the motor housing, i.e. it forms one whole part of the motor housing itself, whereby in this housing segment: It is expedient to eliminate the need for any other parts of the motor housing.

  A wide variety of possibilities are conceivable for the form of the form-fitting member. One simple possibility of constructing the form-fitting member is to provide it as a separate part and connect it to the support.

  However, it is particularly expedient if the support forms the first shaped connection of each housing segment.

  Furthermore, it is likewise preferred if the support forms the second form-fitting member of each housing segment.

  As regards the bearing of the rotor, the support has a bearing mount for a pivot bearing that supports the rotor, so that no separate parts need to be provided in the motor housing for this bearing mount, too. It has proven to be particularly advantageous if the bearing mount for the pivot bearing can be formed together in one shot when the body is formed.

  The configuration of the rotor has not been described in detail so far. One particularly advantageous embodiment provides that the at least one rotor disk is seated on a rotor shaft which is rotatably mounted on the motor housing, in which case the shaft of the rotor shaft The support is preferably provided via a pivot bearing, which is supported on a support, which supports the support.

  The configuration of the stator unit itself has not been specified in detail in relation to the description of the embodiments. The stator unit may extend obliquely with respect to the rotation axis, for example.

  A particularly advantageous design embodiment provides that the stator unit extends parallel to the axis of rotation starting from the pole piece head.

  In principle, it is conceivable to configure the stator unit with a relatively short length in the direction of the rotation axis.

  To obtain the best motor output, the stator unit extends in the direction of the axis of rotation over a length that is greater than the square root of the length of the end face of the pole piece head facing at least one rotor disk. It is particularly convenient to be present. That is, the stator unit is configured to extend over a substantial area in the direction of the axis of rotation.

  It is furthermore advantageous if the length of the stator unit is greater than twice the square root of the length of the end face of the pole piece head, in order to obtain sufficient space to construct a stator unit having as strong a magnetic field as possible.

  The structure of the stator unit has not been described in detail so far. For example, the advantageous embodiments contemplate that each stator unit includes a pole piece and a coil surrounding the pole piece.

  In order to make the structure as simple and universally available as possible, the pole pieces of the stator unit extend from the first pole piece head to the second pole piece head; Preferably, it is intended to have a pole piece head on the opposite side.

  At this time, the coils are preferably arranged so as to be located between the respective pole piece heads.

  The coil may in principle be seated directly on the pole piece. However, it is particularly expedient if the coils are arranged in a winding body which is penetrated by the pole pieces.

  Further, the pole pieces themselves may be variously configured. For example, it is conceivable to integrally form the pole pieces. However, it has proven to be particularly advantageous if the pole piece is configured as a laminate (stack) of laminated thin layers.

  At this time, the thin plate layer is preferably constituted by a thin plate aligned in parallel with the rotation axis.

  The stacking direction is expediently selected to extend transversely to the axis of rotation.

  At this time, the thin plate forming the thin plate layer may have various configurations. In the simplest case, it is conceivable to configure the sheets forming the sheet layer into a rectangular shape, which can be deformed in order to form a specific cross-sectional shape of the pole piece.

  At this time, the pole piece is preferably configured as a cylindrical body, and such a cylindrical body can have any cross section. The cross section may be, for example, circular.

  Because of the simple structure of the pole piece, it is expedient if the pole piece has a polygonal cross section.

  In a particularly advantageous configuration of the pole piece, it is intended that the pole piece has a trapezoidal cross-sectional shape.

  Alternatively, the pole pieces could be configured to have a rectangular, square or any other type of cross-sectional shape.

  In order to achieve the most accurate positioning of the pole pieces, the windings are embedded in an embedding material, and the pole pieces are housed in a precisely guided manner, whereby the windings It is intended that the precise positioning of the pole pieces takes place relative to each other via the slab, and in particular the possibility of inserting the pole pieces after embedding the winding body and the coil in the embedding material is obtained. Is preferred. Accurate positioning is preferred because the relative positions of the pole pieces with respect to each other make a major contribution to the quality of the operating characteristics of the electric motor.

  The stator units may at least partially have a common coil unit.

  For reasons of rational production, it is particularly preferred that the stator units are individual units which are arranged so as not to be continuous.

  In the most convenient case, the stator units are all identically configured units.

  The configuration of the rotor disk has not been described in detail in relation to the previous description of the individual embodiments. For example, one advantageous embodiment contemplates that at least one rotor disk has a magnetic coercive body.

  At this time, the coercive body is preferably configured to be configured as a support for the magnet segment forming the magnetic pole.

  Other constituent features and advantages of the present invention are subject to the following description of the embodiments and the drawings of the embodiments.

  A first embodiment of an electric motor 10 according to the present invention shown in FIGS. 1 and 2 includes a motor housing, generally designated 12, which has a plurality of housing parts, i.e. 1 housing cover 14, a second housing cover 16 disposed opposite to the housing cover 14, and a housing segment 18 for housing the stator of the electric motor 10, generally denoted by reference numeral 20 interposed therebetween. And

  Further, the housing segment 18 has a central through-hole 22 extending from a first end surface 24 of the housing segment 18 to a second end surface 26 of the housing segment 18, the first end surface 24 being the first housing 24. Facing the cover 14, the second end surface 26 is facing the second housing cover 16.

  Further, the housing segment 18 is rotatably supported by a rotor, generally designated by the reference numeral 30, which comprises a rotor shaft 34 rotatable about a rotation shaft 32 and a first shaft of the housing segment 18. It includes a first rotor disk 36 oriented toward the end surface 24 and a second rotor disk 38 oriented toward the second end surface 26 of the housing segment 18. Both rotor disks 36, 38 are non-rotatably seated on the rotor shaft 34.

  The pivoting of the rotor shaft 34 relative to the housing segment 18 is performed via a first pivot bearing 42 and a second pivot bearing 44, which are, for example, of the first end face 24. In the vicinity, it is held by a first bearing mount 46 in contact with the central through-hole 22, whereas the second pivot bearing 44 is in the vicinity of the second end face 26 in a second contact with the through-hole 22. Is held by a bearing mount 48.

  As shown in FIGS. 1 and 3, the stator 20 includes a number of stator units 52, each having a pole piece 54, which is separated from the stacked individual sheet layers 58. These lamination layers 56 are formed by individual laminations 62 which are positioned one above the other in the laminating direction 60 and are electrically insulated from one another. Extends in parallel with the rotation axis 32, so that each magnetic pole piece 54 extends substantially in parallel with the rotation axis 32 in the longitudinal direction 64, and a first portion is provided at each of the opposed end portions. , And a second pole piece head 68.

  Further, each pole piece 54 extends through a winding 70, which turns from a first end flange 74 of the winding 70 to a second end flange 76 of the winding 70. And a winding body sleeve 72 extending therefrom.

  A coil 78 is wound around the winding body sleeve 72 between the end flanges 74 and 76.

  All the stator units 52 are embedded in a support 80 formed of a hardened embedding material, for example a hardened plastic material, which is for example embedded in a corresponding mold or injection mold. This is done by casting the stator unit 52 in a mold or by extrusion coating the stator unit 52, so that the support 80 allows all the stator units 52 of the stator 20 to move relative to each other. , And at the same time, surrounds the winding body sleeve 72 on the pole piece 50 so as to protect it together with the coil body 70.

  For example, the support 80 is configured such that the support itself forms the first end face 24 and the second end face 26 of the housing segment 18, in which the pole piece heads 66 and 68 are located. At its end faces 82 and 84, it is positioned so as to be aligned with the end faces 24 and 26 of the housing segment 18.

  Further, the support 80 is configured to simultaneously form the outer jacket surface 86 of the housing segment 18, so that this outer jacket surface simultaneously becomes the outer jacket surface of the motor housing 12.

  Further, the support 80 forms first and second bearing mounts 46, 48 for the pivot bearings 42 and 44, in addition to the above, and is formed to form the central through hole 22. Can be.

  In addition, the support 80 includes sleeve-like extensions 92 and 94 that surround the first rotor disk 36 and the second rotor disk 38 while being located radially outward, and have a first end face. A first sleeve-like extension 92 that extends beyond 24 supports a first form-fitting member 96 in the form of a groove 93 located facing the axis of rotation 32. , The second sleeve-shaped extension 94 comprises a second shaped joining member 98 in the form of a groove 95 located opposite the axis of rotation 32.

  In the first embodiment shown in FIG. 1, the first housing cover 14 including the corresponding second shape joining member 97 is engaged with the first shape joining member 96, and the second shape joining is performed. A second housing cover 16 provided with another first shape joining member 99 is engaged with the member 98.

  Thus, the support 80 is not only a component that holds the stator unit 52 relative to each other, but at the same time, all components required for the housing segment 18, such as the bearing mounts 46 and 48 and the form-fitting Having members 96 and 98, etc., the support 80 also forms the main part of the motor housing 12, which extends between the housing covers 14 and 16, this part being made of plastic material. Since it is made of a hardenable embedding material, on the one hand it can be manufactured at low cost and in the required shape, on the other hand the stator unit 52 is embedded in the support 80. Position, as well as a tightly enclosed and protected housing, and electrical insulation. Forming a generic protection unit to the coil 78 of Tayunitto 52.

  In the context of the previous description of the individual components of the electric motor 10 according to the invention, no special description has been given regarding the configuration of the rotor disks 36 and 38.

  Each of the rotor disks 36 and 38 includes a magnetic coercive body 102 made of a soft magnetic material, and the coercive body also forms a support for the magnetic pole 104 provided in pairs. Are abutted against the coercive body 102 on the keeper side 106 and are directed toward the end faces 82 and 84 of the pole piece heads 66 and 68 on the air gap side 108, so that the air Air gaps 110 and 112 are formed between the gap side 108 and the end faces 82 and 84 of the pole piece heads 66 and 68, respectively.

  As shown in FIGS. 3 and 4 (a), the pole piece 54 preferably has a trapezoidal cross section, so that the end face 82 is illustrated in FIGS. 4 (a) and 4 (b). As shown, the end faces 82 and 84 are also trapezoidal, and the shorter side 114 of the two parallel sides 114 and 116 of the trapezoid is arranged so as to face the rotation axis 32, whereas , The longer side 116 of the parallel sides 114, 116 is located on the side of the trapezoid opposite the axis of rotation 32, and both legs 118 and 120 of the trapezoid are parallel sides 114 and 116. It extends so as to be spaced apart from the rotation shaft 32 between 116.

  Thereby, both sides 114 and 116 and the end contour legs 118 and 120 are similarly aligned and arranged in each of the stator units 52 relative to the rotational trajectory U along which the magnetic pole 104 moves. The specified first surface shape F1 is defined.

  Further, as shown in FIGS. 4A and 4B, the magnetic pole 104 is configured as, for example, an annular segment, is divided by an inner circular arc 124 and an outer circular arc 126, and the rotation trajectory U Are separated by, for example, linearly extending edges 128 and 130, so that each magnetic pole 104 has the second surface shape F2 as a whole.

  The magnetic pole 104 having the second surface shape F2 that is the same for each magnetic pole 104 moves along the path along the rotation trajectory U beyond the first surface shape F1 of the end faces 82 and 84 of the magnetic pole sides 54. At this time, the energization of the coils 78 of the individual stator units 52 is performed by a known method as in the case of a linear motor, so that, for example, the magnetic poles 104 having alternating polarities in the direction of the rotation path U are formed. It moves on a rotating orbit U.

  At this time, when the number of the rotor disks 36 and 38 is two, in order to improve the rotation behavior of the rotor 30, the magnetic pole 104 of the first rotor disk 36 is It is preferably intended to be arranged offset by a certain rotation angle.

  As shown in FIGS. 4A and 4B, the second surface shape F2 is preferably configured to be able to completely overlap the first surface shape F1. However, the second surface shape F2 extends beyond it in the direction of the rotational trajectory U, even when completely overlapping the first surface shape F1.

  In the second embodiment (10 ') of the electric motor according to the present invention shown in FIGS. 5 and 6, components that are the same as the components of the first embodiment are given the same reference numerals. As for the description thereof, the description of the first embodiment can be fully incorporated.

Unlike the first embodiment, as shown in FIGS. 5 and 6, instead of the one housing segment 18 ₂ two housing segments 18 ₁ and 18 is provided as a housing part of the motor housing 12 ' and which, each housing segment 18 ₁ and 18 ₂ has a first shape joining member 96 ₁ and 96 ₂ a second shape joining member 98 ₁ and 98 _2.

For connecting both housing segments 18 ₁ and 18 _2, the first shaped joint member 96 _{and second} housing segments 18 ₂ engages the second shape joining member 98 ₁ of the housing segments 18 _1, as a result , both housing segments 18 ₁ and 18 ₂ are thereby connected to each other.

In this case, the cooperation of the shape joining member 98 ₁ and 96 ₂ are both housing segment 18 ₁ and 18 ₂ are arranged so as to mutually align on a straight line in each of through holes 22 ₁ and 22 _2, yet, bearing Mt. 46 ₁ and 48 ₁ and 46 ₂ and 48 ₂ mutually aligned on a straight line with respect to the rotating shaft 32, thereby to pivotally supports the rotor shaft 34, one housing the first pivot bearing 42 insert the bearing mount 46 _first segment 18 _1, by inserting the second pivot bearing 44 in the bearing mount 48 ₂ of the other housing segments 18 ₂ is sufficient, excessively defined journalled rotor shaft 34 to avoid, bearing mounts 48 ₁ and 46 ₂ may if leave not used.

Similarly, the shape joining member 98 ₁ and 96 ₂ are further configured to allow the non-rotatable fixation of the housing segment 18 ₁ and 18 _2, thereby mutually relative to stator 20 ₁ and 20 ₂ to be non-rotatably fixed is realized, for example, it can be a stator unit 52 ₁ and the stator unit 52 ₂ is so arranged in a straight line to each other.

For closing the motor housing 12 ', just as in the first embodiment, the first housing cover which engages the first shape joining member 96 ₁ of the housing segment 18 ₁ by the shape joining member 97 14 together is provided, engages into a second shape joint member 98 ₂ housing segment ₁₈₂ by another first shape joint member 99, the first housing cover 16 is provided to thereby be fixed thereto ing.

Each housing segment 18 ₁ and 18 ₂ includes a stator 20 ₁ and 20 ₂ with a stator unit 52 ₁ and 52 ₂ provided with opposing respectively to the side pole piece heads 66 ₁ and 68 ₁ and 66 ₂ and 68 ₂ I have. In other respects, the stator unit 52 ₁ and 52 ₂ is configured in the same manner as in the first embodiment, also, by the same method as in the first embodiment, and they cured because it is embedded in the support 80 ₁ and 80 ₂ made of embedding material, in that respect it is entirely incorporated to the description of the first embodiment.

Thus, in particular, housing segment 18 ₁ and 18 ₂ are constructed identically, hence, it can be manufactured as the same part.

Further, in the second embodiment, the rotor 30 ′ is seated on the rotor shaft 34 with the first rotor disk 36 already described in relation to the first embodiment, and the rotor disk is protected. pole 104 seated on the magnetized member 102 is configured to face toward the pole piece heads 66 _1.

Further, the magnetic pole 104 to be seated on holding magnetized member 102 is a rotor disk 38 is provided which faces the ₂ second pole piece head 68 of the housing segment 18 _2, both of these rotor discs 36 and 38, the rotor It is non-rotatably seated on the shaft 34.

Furthermore, non-rotatably seated on the rotor shaft 34, mutually support the pole 204 ₁ and 204 ₂ on the side opposite to, and also the rotor disk 136 includes a disk-shaped holding magnetized member 202 is provided, the magnetic pole 204 ₁ It is arranged so as to face toward the pole piece heads 68 _1, pole 204 ₂ are disposed so as to face toward the pole piece head 66 _2.

Thus, for a rotor disk 136, not only can generate torque through second pole piece heads 68 ₁ and the magnetic pole 204 ₁ in cooperation with the first pole piece head 66 ₂ and the magnetic pole 204 ₂ The torque that can be generated by cooperation with the above also acts.

  Thus, as a whole, the rotor 30 ′ in this case includes three rotor disks 36, 38, 136 all seating on the same rotor shaft 34.

  The other parts of the second embodiment are denoted by the same reference numerals, and are the same as the respective parts of the first embodiment. Therefore, the description of the first embodiment is entirely incorporated. Can be.

  The third embodiment of the electric motor 10 ″ according to the present invention shown in FIG. 7 is a modification of the first embodiment shown in FIGS. 1 to 4A and 4B. The second rotor disk 38 has been replaced by a coercive body 138 in the form of a soft magnetic ring, which, on the side 140 facing the pole piece head 68, has as far as possible air at its end face 84. It is abutted against a gap and is positioned relatively stationary with respect to the stator 20 and is thus a magnetic keeper for the pole piece 54, and thus this pole piece is Only the head 66 acts on the magnetic pole 104 of the only rotor disk 36 seated on the rotor shaft 34 to drive the rotor 30 ''.

  In other respects, each part of the third embodiment is the same as each part of the first embodiment, and therefore, the description of the first embodiment will be omitted. Can be recruited.

  As all three embodiments show, the concept of the invention allows a modular construction of the electric motors 10, 10 'and 10' 'consisting of substantially identical parts, The electric motors 10, 10 ', and 10' 'having different outputs and different rotation characteristics can be manufactured by the same parts at a low cost.

Now referring back to the first exemplary embodiment again, for example, the stator 20 is total has nine stator units 52 ₁ to 52 _9, accordingly, a total with the surface shape F1 9 It has a number of end faces 82 ₁ to 82 ₉ (Fig. 3).

  Furthermore, as shown in FIGS. 8 to 14, the magnetic pole 104 is configured, for example, in the form of circular segments that are directly continuous and in contact with each other, and these circular segments have a radius In the direction R, it is delimited by an inner arc 124 and an outer arc 126 and, in the direction of the rotational path U, by an end profile, for example extending linearly with a small acute angle α to the radial direction R As a result, each of the magnetic poles 104 has a second surface shape F2 as a whole (FIG. 8).

In order to reduce the cogging torque, the number of magnetic poles 104 always provided in pairs does not correspond to the number of stator units 52 in each rotor disk 36, 38; pole 104, for example, total has eight poles 104 ₁ to 104 _8, respectively, for example, magnetic poles always continuous, i.e., for example, pole 104 ₁ and ₁₀₄ 2, 104 ₃ and ₁₀₄ 4, 104 ₅ and ₁₀₄ 6, 104 ₇ and 104 ₈ are paired, respectively, whereby, for example, the magnetic pole _{104 1,} 104 3, 104 ₅ and 104 ₇ have the same magnetically polar, pole _1042, 104 4 104 ₆ and 104 ₈ in the same manner.

  Then, as described above, the magnetic pole 104 having the second surface shape F2 that is the same for each magnetic pole 104 has the first surface shape of the end surfaces 82 and 84 of the magnetic pole side 54 in the path along the rotation trajectory U. Movement beyond F1, the energization of the coils 78 of the individual stator units 52 takes place in a known manner as in the case of linear motors, so that, for example, alternating polarities in the direction of the rotational path U Move on the rotation path U.

  At this time, when the number of the rotor disks 36 and 38 is two, in order to improve the rotation behavior of the rotor 30, the magnetic pole 104 of the first rotor disk 36 is It is preferably intended to be arranged offset by a certain rotation angle.

As shown in FIGS. 9 to 14, the second surface shape F2 is configured to be able to completely overlap the first surface shape F1 at one or a plurality of positions (FIGS. 9 and 14). Preferably, this results in the largest overlapping surface UEF ₅ whose area corresponds to the area of the surface shape. Furthermore, the second surface shape F2 defines an area BUE of the second surface shape F2 that causes this complete overlap in the direction 132 of the rotational trajectory U, even when completely overlapping the first surface shape F1. It extends beyond and thus has edge regions RBV and RBH located on both sides of the region BUE.

  At this time, each of the ring segments forming the magnetic pole 104 preferably extends over an angle region WB corresponding to an angle larger than an angle obtained by dividing 360 ° by the number of the stator units 52.

  In the case of the first embodiment including nine stator units 52 and eight magnetic poles 104, the angle region WB is 45 °.

The 9 to 14, for example, pole 104 ₁ is in motion while increasing the overlap on the end faces 82 _1, further pole 104 ₁ whereas exercising while decreasing the overlap is on the end face 82 ₂ It is shown at each stage how the vehicle is located and how each overlap changes depending on the path that has passed on the rotation trajectory U.

For example, the pole 104 _1, as shown in FIG. 9, the end side 128 of the second surface geometry F2 is motion in the top of rotary trajectories U extent in contact with the leg 120 of the first surface shape F1, overlapping surfaces UEF ₁ is equal to zero, reach this position is when the path position W _1. Figure as seen in 10, the end side 128 of the second surface geometry F2 further movement beyond the first surface shape F1 of the end face 82 ₁ to route the position W _2, overlap surface is a surface of the triangle UEF ₂ Occurs. When the pole 104 ₁ is further movement in the top of the rotation path U, for example, when reaching the path position W _3, wider than the overlap surface UEF _2, between the second surface geometry F2 to the first surface shape 1 reached the overlap UEF _3, this time, in the course of the magnetic pole 104 ₁ moves from the path position _{W 1} on a rotating track U to the route position _{W 3,} overlapping surfaces UEF is from the path position _{W 1} to _{W 3} rather than increasing linearly with path passed, for example, as shown in FIG. 15, be increased by approximately quadratic function with the routes pass from the path position W ₁ to W _3.

The path position _{W 3} shown in FIG. 11 since I almost passed, the end side 128, now intersects the first parallel sides both of the surface shape F1 114 and 116, the moment after, overlapping surfaces UEF is to reach the route position _{W 4} of the overlap surface UEF ₄ as shown in FIG. 12, increases approximately linearly.

When the pole 104 ₁ having a surface shape F2 further movement, when the end side 128 in the path position W ₅ has reached the first surface shape first leg 118, a first surface shape 1 and the second surface shape F2 becomes possible to fully overlap, and reaches the overlap surface UEF ₅ corresponding to the first surface shape F1.

Furthermore, between the path position W ₄ and the route positions W _5, overlapping surfaces UEF, instead of increasing linearly with advanced path by rotation path U, 12, as can be seen from FIGS. 13 and 15 Increases non-linearly.

Path position _{W 5} after, as shown as an example path position _{W 6} 14, the size of the overlap surface UEF ₅ is maintained, i.e., the legs of the first surface shape F1 edge side 130 of the end faces 82 ₁ 120 until it reaches 120 (FIG. 15).

In this case, as can be seen overlap of the end face 82 ₁ from 11 to 14 and 16 taken as an example, from the same reason as described for the increase of the overlap surface UEF overlap surface UEF is overlap Starting from the surface UEF ₅ , first the edge 130 decreases non-linearly until it reaches both parallel sides 114 and 116, then the overlapping surface UEF decreases linearly, and finally the edge 130 and during the step of intersecting the side 118 from also reduced nonlinearly, finally overlap the pole 104 ₁ and the end face 82 ₁ becomes zero.

9 to 14, the number of the magnetic poles 104 is smaller than the number of the stator units 52, and the magnetic poles 104 are arranged on the respective rotor disks 36 or 38 so as to be directly continuous with each other. in 104 the route broad areas of the rotating track U, two end faces 82 of the stator unit 52 consecutive, for example, to the extent that extends across the end surface 82 ₁ and 82 _2, the angular range WB in the pole 104 is widened It can be seen that the successively arranged stator units 52 are magnetized in the opposite direction, i.e. each of the magnetic poles 104 is magnetized in the opposite direction in a large area of the path along the rotational path U. The operation of the two stator units 52 is performed.

Overlapping surfaces UEF increases nonlinearly with the advanced path in the path area between the path position W ₁ and W _3, increases differently from the linear behavior in the path section between the path position W4 and W ₅ whereas, at the same time, at least partial overlap with the end face 82 ₂ and the preceding magnetic pole 104 ₁ is still based on the fact that there, the first embodiment of the electric motor 10 according to the present invention Can be selected as conveniently as possible, and can be suppressed as low as possible.

  In the fourth embodiment of the electric motor according to the present invention shown in FIGS. 17 to 23, the end face 82 of the stator unit 52 is configured in the same manner as in the first embodiment.

  However, in the fourth embodiment, the magnetic pole 104 'has a surface shape F' different from the second surface shape F2 of the first embodiment.

For example, the second surface shape F2 'in the fourth embodiment is similarly configured to be trapezoidal, but the inner arc 124' is longer than the outer arc 126 ', and 128 ′, 130 ′ form trapezoidal legs extending at an acute angle β ₁ or β ₂ with respect to the radial direction R, the angles β ₁ , β ₂ being the same size or different It can be large.

  The overlap between the first surface shape F1 and the second surface shape F2 'is started when the edge 128' comes into contact with the first surface shape leg 120 as shown in FIG.

As the magnetic pole 104 ′ ₁ moves further on the rotation trajectory U, the end 128 ′ intersects not only the leg 120 of the first surface shape F 1 but also the side 114, and a triangular overlapping surface UEF ′ ₂ is formed. Occurs.

'If further movement, overlapping surfaces UEF' end side 128 'becomes _3, the overlap surface UEF' is spread overlap surface UEF ₃ is fulfilled when the magnetic pole 104 ₁ 'route position W' reaches _3.

As in the first embodiment, the _'1 path position W' route position W up to _3, overlapping surfaces UEF 'increases nonlinearly, for example, increased by approximately quadratic function.

After reaching the route position W ′ ₃ , the overlapping surface UEF ′ linearly increases with the route traveling on the rotation trajectory U until the route position W ₄ shown in FIG. When the pole 104 _'1 is relatively further movement to the end face 82 _1, overlap UEF ₄ is further increased, rather than longer linearly increases differently from the linear behavior, finally, is shown in FIG. 21 it reaches the maximum overlap surface UEF _'5 as.

Then, 'the ₅ pole 104' route position W because ₁ completely covers the end face 82 _1, the overlap surface UEF _'5, the maximum reachable overlap surface.

Furthermore, in the fourth embodiment, the second surface shape F2 'is such that the successive magnetic poles 104' are spaced apart from one another in the direction of the rotational trajectory U, i.e., are not directly continuous with one another. Has been selected. As a result, as also apparent from FIGS. 17 to 21, 'covers the two end faces 82, for example, the end faces 82 ₁ and 82 ₂ at the same time, each of the magnetic poles 104 on the rotating trajectory' one pole 104 path section of Has become shorter.

  In the fifth embodiment, as shown in FIG. 22 and FIG. 23, the stator 20 ′ includes a stator unit 52 ′ having a pole piece 54 ′ having a rectangular cross section. The advantage is that the production of the stator unit 52 'is further simplified since the laminate 56' consisting of the individual laminated laminates 58 'can be produced from the laminates 62', all of which have the same shape. ing.

  In such a stator unit 52 ', the end face 82' is also rectangular, particularly square, so that the first surface shape F1 'is also the same length for both parallel sides 114' and 116 ', The legs 118 ′ and 120 ′ extending between these sides are also square surface shapes of equal length.

  Furthermore, the legs 118 'and 120' of the first surface shape F1 'are of equal length.

In the fifth embodiment, the magnetic pole 104 '' is configured as an annular segment, the inner arc 124 '' of which is shorter than the outer arc 126 '', with the edges 128 '' and 130 ''. For example, these edges are opposite to each other, for example, the edge 128 ″ of the magnetic pole 104 ″ ₂ and the edge 130 ″ of the magnetic pole 104 ″ ₁ are substantially parallel to each other. , So that the side edges 128 ″ and 130 ″ extend at an acute angle γ with respect to the radial direction R.

  This means that, as shown in FIGS. 24 to 28, even in the case of the fifth embodiment, when the first surface shape F1 ′ and the second surface shape F2 ″ start to overlap, The surface UEF ″ increases non-linearly and then more linearly, which also leads to a further non-linear increase at the end of the overlap.

Further, as shown in FIGS. 24 to 28 by taking the surface shape F2 ″ and the overlapping surface UEF ″ between the end surfaces 82 ″ ₂ as an example, the overlapping surface UEF ″ is the overlapping surface in FIGS. 24 and 25. As is evident from UEF " ₆ and UEF" ₇ , it first decreases non-linearly, then decreases linearly as evident from FIG. 26, and then reduces overlap as evident from FIG. Sometimes decreases non-linearly.

  In the sixth embodiment shown in FIGS. 29 to 32, which is a modification of the fifth embodiment, the second surface shape F ″ has an inner arc 124 ″ and an outer arc 126 ′. , But there is no linearly extending edge in the direction of the rotational path U, and the second surface shape F2 ″ is in the direction of the rotational path U. At 132, end profiles 128 ′ ″, 130 ′ ″ with tips 152 and 154, extending from the arcs 124 ′ ″ and 126 ′ ″ and tapering toward tips 152 or 154. It is comprised so that it may have.

'When motion in on the _1, UEF overlap surface in FIGS. 30 and 31''' ₁ 'pole 104 includes a' of this kind second surface geometry F2 of '' the end face 82 '' ₂ and UEF '' As can be seen from ' ₃ , a significant non-linear increase of the overlapping surface UEF''' occurs.

As can be seen from FIG. 32, at this time, a position where the maximum overlapping surface UEF ′ ″ ₅ can be reached substantially has occurred, and the side of the region BUE ′ ″ of the second surface region F2 ′ ″ has been generated. Are defined by the end contours 128 '''and130''' with respect to their respective areas, so that the edge regions RBV ''' And RBH '''are responsible for causing the overlap surface UEF''' to increase or decrease nonlinearly at the beginning of the overlap and shortly before the overlap ends.

It is a longitudinal section showing a 1st embodiment of an electric motor concerning the present invention. FIG. 1 is an exploded view showing a first embodiment of an electric motor according to the present invention. FIG. 3 is a sectional view taken along lines 3-3 in FIG. FIG. 4A is a cross-sectional view along the line 4-4 in FIG. 1 and a partial view showing the start of the overlap between the first surface shape of the pole and the second surface shape of the pole piece head. (FIG. 4B). FIG. 4 is a longitudinal sectional view similar to FIG. 1, showing a second embodiment of the electric motor according to the present invention. FIG. 3 is an exploded view similar to FIG. 2, showing a second embodiment of the electric motor according to the present invention. FIG. 4 is a longitudinal sectional view similar to FIG. 1, showing a third embodiment of the electric motor according to the present invention. FIG. 4 is a sectional view taken along lines 4-4 in FIG. 1. FIG. 6 is a partial view showing the start of the overlap between the first surface shape of the pole and the second surface shape of the pole piece head. FIG. 10 is a view similar to FIG. 9 showing a region where the overlapping surface increases nonlinearly immediately after the first and second surface shapes begin to overlap; FIG. 11 is a diagram illustrating the overlap of the first and second surface shapes in a region where the overlap surface thereafter linearly increases along the path of the rotation trajectory. Immediately before reaching the maximum overlapping surface, similar to FIG. 9 showing the region of overlap between the first surface shape and the second surface shape, where the overlapping surface further increases non-linearly with the path of the rotating trajectory. FIG. It is a figure which shows the overlap of a 1st surface shape and a 2nd surface shape at the time of the largest overlap surface. It is a figure which shows the overlap of a 1st surface shape and a 2nd surface shape at the time of the largest overlap surface in the area | region where an overlap surface does not change as the path of a rotation track increases. FIG. 5 is a schematic diagram illustrating an increase in an overlapping surface when the overlapping starts in the first embodiment of the electric motor according to the present invention. FIG. 4 is a schematic diagram showing a decrease in an overlapping surface immediately before the overlapping ends in the first embodiment of the electric motor according to the present invention. FIG. 10 is a diagram showing a situation shown in FIG. 9 in a fourth embodiment of the electric motor according to the present invention. FIG. 11 is a diagram showing a situation shown in FIG. 10 in a fourth embodiment of the electric motor according to the present invention. FIG. 12 is a diagram showing a situation shown in FIG. 11 in a fourth embodiment of the electric motor according to the present invention. FIG. 13 is a view showing a situation shown in FIG. 12 in a fourth embodiment of the electric motor according to the present invention. FIG. 14 is a view showing a situation shown in FIG. 13 in a fourth embodiment of the electric motor according to the present invention. FIG. 11 is a sectional view similar to FIG. 3 in a fifth embodiment of the electric motor according to the present invention. FIG. 9 is a sectional view similar to FIG. 8 in a fifth embodiment of the electric motor according to the present invention. FIG. 11 is a view showing a situation similar to FIG. 9 in a fifth embodiment of the electric motor according to the present invention. FIG. 11 is a view showing a situation similar to FIG. 10 in a fifth embodiment of the electric motor according to the present invention. FIG. 12 is a view showing a situation similar to FIG. 11 in a fifth embodiment of the electric motor according to the present invention. FIG. 13 is a view showing a situation similar to FIG. 12 in a fifth embodiment of the electric motor according to the present invention. FIG. 15 is a view showing a situation similar to FIG. 14 in a fifth embodiment of the electric motor according to the present invention. FIG. 11 is a view showing a situation similar to FIG. 9 in a sixth embodiment of the electric motor according to the present invention. FIG. 11 is a view showing a situation similar to FIG. 10 in a sixth embodiment of the electric motor according to the present invention. FIG. 12 is a view showing a situation similar to FIG. 11 in a sixth embodiment of the electric motor according to the present invention. FIG. 14 is a view showing a situation similar to FIG. 13 in a sixth embodiment of the electric motor according to the present invention.

Explanation of reference numerals

Reference Signs List 10 electric motor 12 motor housing 14 first housing cover 16 second housing cover 18 housing segment 20 stator 22 through hole 24 first end face 26 second end face 30 rotor 32 rotation axis 34 rotor shaft 36 first rotor disk 38 second rotor disk 42 pivot bearing 44 pivot bearing 46 first bearing mount 48 second bearing mount 52 stator unit 54 pole piece 56 laminated plate 58 thin plate layer 60 lamination direction 62 thin plate 64 longitudinal direction 66 first pole piece Head 68 Second pole piece head 70 Winding body 72 Winding body sleeve 74 First end flange 76 Second end flange 78 Coil 80 Support 82 End face 84 End face 86 Outer mantle face 92 Extension 93 Groove 94 Extension 95 Groove 96 First shape joining member 97 Another second Joint member 98 second shape joint member 99 another first shape joint member 102 magnetic coercive body 104 magnetic pole 106 magnetizer side 108 air gap side 110 air gap 112 air gap 114 parallel side 116 parallel side 118 end Contour, leg 120 End contour, leg F1 First surface shape U Rotational trajectory R Radial direction 124 Inner arc 126 Outer arc 128 Edge contour, edge 130 Edge contour, edge F2 Second surface shape 138 Side 132 of coercive body 140 138 Direction BUE of rotation orbit BUE Region F2 when F1 and F2 completely overlap Region RBH Edge region RBV Edge region UEF Overlapping surface W Path position 152 Edge contour tip 154 Edge contour Tip of

Claims (84)

A motor housing (12);
A rotor (30) rotatably supported by a motor housing so as to be rotatable about the rotation axis (32), the rotor (30) having a magnetic pole (104) arranged to be continuous in the azimuthal direction with respect to the rotation axis (32); ,
A stator unit (52) arranged around the rotation axis (32), having a pole piece head (66, 68) facing at least one rotor disk (36, 38) of the rotor (30); A stator (20) disposed in said motor housing (12), comprising:
An electric motor (10) comprising:
The stator unit (52) is embedded in a hardened embedding material, the hardened embedding material moving the stator units (52) relative to each other and with respect to the motor housing (12). An electric motor, characterized in that it forms a support (80) for said stator unit (52), which is relatively fixed.   The electric motor according to claim 1, wherein the cured embedding material is a material that electrically insulates.   The electric motor according to claim 1, wherein the embedding material is a plastic material.   The electric motor according to claim 3, wherein the embedding material is a material polymerized by a catalyst.   5. The electric motor according to claim 1, wherein stable and accurate positioning of the stator units relative to each other is performed only through the support.   Electric motor according to any of the preceding claims, wherein the support (80) forms at least one part (18) of the motor housing (12).   The electric motor according to claim 6, wherein the support (80) forms a housing segment (18) of the motor housing (12).   8. The method according to claim 1, wherein the support comprises a bearing mount for a pivot bearing for supporting the rotor. 9. An electric motor according to any one of the preceding claims.   9. The motor of claim 1, wherein the at least one rotor disc is seated on a rotor shaft rotatably supported by the motor housing. An electric motor according to claim 1.   10. The device according to claim 1, wherein the stator unit extends in parallel with the axis of rotation starting from the pole piece head. 11. Electric motor.   The stator unit (52) has an end face (82,) of the pole piece head (66, 68) facing at least one of the rotor disks (36, 38) in the direction of the rotation axis (32). An electric motor according to claim 10, wherein the electric motor extends over a length greater than the square root of the length of 84).   The length of the stator unit (52) is greater than twice the square root of the length of the end face (82, 84) of the pole piece head (66, 68). Electric motor.   13. Each of the stator units (52) has a pole piece (54) and a coil (78) surrounding the pole piece (54). The electric motor according to the paragraph.   The pole piece (54) of the stator unit (52) extends from a first pole piece head (66) to a second pole piece head (68). An electric motor as described.   The electric motor according to claim 14, wherein the coil (78) is located between each of the pole piece heads (66, 68).   Electric motor according to one of the claims 13 to 15, wherein the coil (78) is arranged on a winding body (70) penetrated by the pole piece (54).   Electric motor according to one of the claims 13 to 16, characterized in that the pole pieces (54) are configured as a laminate (56) consisting of laminated thin layers (58).   The electric motor according to claim 17, wherein the sheet layer (58) is constituted by a sheet (62) aligned parallel to the rotation axis (32).   19. The electric motor according to claim 17, wherein the laminating direction (60) of the laminate (56) extends transversely to the rotation axis (32).   20. Electric motor according to any one of claims 17 to 19, wherein the sheets (62) forming the sheet layers (58) are configured in a rectangular shape.   21. Electric motor according to any of claims 13 to 20, characterized in that each said pole piece (54) is configured as a cylindrical body.   The electric motor according to any one of claims 13 to 21, wherein the pole piece (54) has a polygonal cross-sectional shape (F1).   The electric motor according to claim 22, wherein the pole piece (54) has a trapezoidal cross-sectional shape (F1).   The winding body (70) is embedded in the embedding material, and the pole piece (54) is housed in an accurately guided state. The electric motor according to the paragraph.   25. The electric motor according to any of the preceding claims, wherein the stator units (52) are individual units configured to be non-continuous.   26. The electric motor according to any one of claims 1 to 25, wherein the stator units (52) are all configured identically.   Electric motor according to any of the preceding claims, wherein at least one of the rotor disks (36, 38) has a magnetic coercive body (102).   28. The electric motor according to claim 27, wherein the coercive body (102) is configured as a support for a magnet segment (104) forming a magnetic pole. A motor housing (12);
A rotor rotatably supported by the motor housing (12) so as to be rotatable about the rotation axis (32) and having a magnetic pole (104) arranged to be continuous in the azimuthal direction with respect to the rotation axis (32); (30)
A stator unit (36) arranged around the rotation axis (32), having a pole piece head (66, 68) facing at least one rotor disk (36, 38, 136) of the rotor (30); 52) a stator (20) disposed in said motor housing (12), comprising:
An electric motor (10) comprising:
The motor housing (12) has a plurality of housing parts (14, 16, 18), at least one of the housing parts housing the stator (20) with the stator unit (52). The housing segment (18) is configured as a segment (18) and supports a first shape-joining member (96) at one end and a second shape-joining member at an opposite end. (98), wherein the second shape-locking member (98) engages another first shape-locking member (99, 96) of another housing portion (14, 16, 18). An electric motor characterized in that the electric motor is configured to be able to perform the operation.   The motor housing (12) has, as a separate housing part, another second shaped connection (97) and a first housing cover (96) cooperating with the first shaped connection (96). 30. The electric motor according to claim 29, comprising: (14).   The motor housing (12) has another housing part (99) as a separate housing part and cooperates with the second housing part (98) with a second housing cover (98). 31. The electric motor according to claim 29, wherein the electric motor comprises (16).   The rotor (30) includes a first rotor disk (36) with a magnetic pole (104) attached to a first pole piece head (66) of the stator unit (52) of the housing segment (18). An electric motor according to any one of claims 29 to 31, characterized in that:   Opposite to the first pole piece head (66), the second pole piece head (68) of the stator unit (52) of the housing segment (18) is positioned stationary relative thereto. 33. The electric motor according to claim 32, further comprising a magnetic coercive body (138).   The rotor (30) includes a second rotor disk (38) non-rotatably connected to the first rotor disk (36), the magnetic pole (104) of which is the first pole piece head. An electric motor according to claim 32, characterized in that it is associated with a second pole piece head (68) of the stator unit (52) of the housing segment (18), facing the (66). The motor housing (12 ') as a housing portion, the first housing segment comprises a shape joining member ₍₉₆ 1, 98 ₁₎ (18 _1), further stator including another stator unit (52 ₂₎ ( 20 ₂₎ has a separate housing segment (18 ₂₎ for accommodating the said another housing segment, the first housing segment (18 ₁₎ the same as the shape of the junction member ₍₉₆ 2, 98 ₂ ), And via one (96 ₂ ) of the shape-joining members (96 ₁ , 98 ₁ ), a corresponding other shape-joining member (98 ₁ ) of the first housing segment (18 ₁ ). 35) The electric motor according to any one of claims 29 to 34, wherein the electric motor is connected by shape joining. At least one further housing segments (18 _2), the electric motor according to claim 35, characterized in that it is configured in the same as the first housing segment (18 _1). Wherein the shape joining member ₍₉₈ 1, 96 ₂₎ is claimed in claim 35, characterized in that to hold the alignment state so as to be aligned in the housing segment ₍₁₈ 1, 18 ₂₎ relative to each other straight line a Or an electric motor according to 36. Mutually opposed, and one of the pole pieces head housing segment (18 ₁₎ (68 _1), the pole piece head of the other of said housing segments subsequent to the housing segment of the one (18 ₁₎ (18 ₂₎ between the (66 _2), towards the pole piece head of the pole piece head (68 ₁₎ and the other of the housings segments of one of the housings segments (18 ₁₎ (18 ₂₎ (66 ₂₎ toward electric motor as claimed in any one of claims 35 to 37 had magnetic pole (204 1, _{204 2)} the rotor disc (136) having respective opposite sides of the is characterized in that it is arranged. The magnetic pole (204 1, _{204 2),} the electric motor according to claim 38, characterized in that are arranged on opposite sides of a common magnetic coercive magnet body (202).   The stator units (52) are embedded in a hardened embedding material, the hardened embedding materials moving the stator units (52) relative to each other and to each of the housing segments (18). An electric motor according to any one of claims 29 to 39, characterized in that it forms a support (80) for the stator unit (52), which is fixed relative to the stator unit (52).   41. The electric motor according to claim 40, wherein the cured embedding material is a material that electrically insulates.   42. The electric motor according to claim 40, wherein the embedding material is a plastic material.   43. The electric motor according to claim 42, wherein the embedding material is a material polymerized by a catalyst.   44. The method according to any one of claims 40 to 43, wherein stable and accurate positioning of the stator units (52) relative to each other is performed substantially only through the support (80). Electric motor.   An electric motor according to any one of claims 40 to 44, wherein the support (80) forms at least one part of the housing segment (18).   The electric motor according to claim 45, wherein the support (80) forms at least one of the housing segments (18) of the motor housing (12).   47. The method according to any one of claims 40 to 46, wherein the support (80) forms the first shape joining member (96) of each of the motor housings (18). Electric motor.   48. The method according to any one of claims 40 to 47, wherein the support (80) forms the second shape joining member (98) of each of the motor housings (18). Electric motor.   49. The support according to claim 40, wherein the support has a bearing mount for a pivot bearing for supporting the rotor. An electric motor according to any one of the preceding claims.   The at least one rotor disk (36, 38, 136) is seated on a rotor shaft (34) rotatably supported by the motor housing (12). An electric motor according to any one of the preceding claims.   51. The method as claimed in claim 29, wherein the stator unit (52) extends parallel to the axis of rotation (32) starting from the pole piece head (66, 68). An electric motor as described.   The stator unit (52) has an end face (66, 68) of the pole piece head (66, 68) facing at least one of the rotor disks (36, 38, 136) in the direction of the rotation axis (32). 52. The electric motor according to claim 51, wherein the electric motor extends over a length greater than the square root of the length of the length.   53. The electricity of claim 52, wherein the length of the stator unit (52) is greater than twice the square root of the length of the end face (82, 84) of the pole piece head (66, 68). motor.   54. Each of said stator units (52) comprises a pole piece (54) and a coil (78) surrounding said pole piece (54). The electric motor according to the paragraph.   55. The method of claim 54, wherein the pole pieces (54) of the stator unit (52) extend from a first pole piece head (66) to a second pole piece head (68). An electric motor as described.   The electric motor according to claim 55, wherein said coil (78) is located between each of said pole piece heads (66, 68).   57. The electric motor according to any one of claims 54 to 56, wherein the coil (78) is arranged on a winding body (70) penetrated by the pole piece (54).   58. The electric motor according to any one of claims 54 to 57, wherein the pole piece (54) is configured as a laminate (56) consisting of laminated thin layers (58).   The electric motor according to claim 58, wherein the sheet layer (58) is constituted by a sheet (62) aligned parallel to the axis of rotation (32).   Electric motor according to claim 58 or 59, characterized in that the lamination direction (60) of the laminate (56) extends transversely to the rotation axis (32).   Electric motor according to any of the claims 54 to 60, characterized in that each said pole piece (54) is configured as a cylindrical body.   The electric motor according to any one of claims 54 to 61, wherein the pole piece (54) has a polygonal cross-sectional shape (F1). A motor housing (12);
A rotor rotatably supported by the motor housing (12) so as to be rotatable about the rotation axis (32) and having a magnetic pole (104) arranged to be continuous in the azimuthal direction with respect to the rotation axis (32); (30)
A stator unit (52) arranged around the rotation axis (32), having a pole piece head (66, 68) facing at least one rotor disk (36, 38) of the rotor (30); A stator (20) disposed in said motor housing (12), comprising:
An electric motor (10) comprising:
The pole piece head (66, 68) has a first surface shape (F1) and the pole (104) has a second surface shape (F2), and both the surface shapes (F1, F2) ) Are configured such that the overlap surface (UEF) increases non-linearly with the path length of the rotational trajectory (U) when the overlap of these surface shapes (F1, F2) begins, and is relative to each other. An electric motor characterized by moving along a rotational orbit (U). A motor housing (12);
A rotor rotatably supported by the motor housing (12) so as to be rotatable about the rotation axis (32) and having a magnetic pole (104) arranged to be continuous in the azimuthal direction with respect to the rotation axis (32); (30)
A stator unit (52) arranged around the rotation axis (32), having a pole piece head (66, 68) facing at least one rotor disk (36, 38) of the rotor (30); A stator (20) disposed in said motor housing (12), comprising:
An electric motor (10) comprising:
The pole piece head (66, 68) has a first surface shape (F1) and the pole (104) has a second surface shape (F2), and both the surface shapes (F1, F2) ) Is configured such that the overlapping surface (UEF) decreases non-linearly with the path length of the rotational trajectory (U) just before the overlapping of these surface shapes (F1, F2) ends and is relative to each other. An electric motor characterized by moving along a rotational orbit (U).   The pole piece head (66, 68) has a first surface shape (F1) and the pole (104) has a second surface shape (F2), and both the surface shapes (F1, F2) ) Is configured such that the overlapping surface (UEF) decreases non-linearly with the path length of the rotational trajectory (U) just before the overlapping of these surface shapes (F1, F2) ends and is relative to each other. 64. The electric motor according to claim 63, wherein the electric motor moves along a rotational trajectory (U).   64. The electric motor according to claim 63, wherein the first surface shape (F1) and the second surface shape (F2) are different.   The electric motor according to claim 66, wherein the first surface shape (F1) and the second surface shape (F2) are different with respect to respective outer contours.   The electric motor according to claim 66 or 67, wherein the first surface shape (F1) and the second surface shape (F2) are different with respect to respective areas.   The first surface shape (F1) and the second surface shape (F2) are different with respect to the relative arrangement of the second surface shape (F2) with respect to the rotation trajectory (U). The electric motor according to any one of claims 66 to 68, wherein: The rotation path by movement of said second surface geometry (F2) of over (U), the second surface shape (F2) is the first surface shape (F1) the maximum overlap surface _(UEF 5) 70. The method according to claim 63, wherein the first surface shape (F1) and the second surface shape (F2) can be brought to a position covered by the following. An electric motor as described. It said maximum overlap surface (UEF _5), the electric motor according to claim 70, characterized in that it corresponds to the surface of at least one (F1) of the sectional shape (F1, F2).   The electric motor according to claim 71, wherein the other (F2) of the surface shapes (F1, F2) is wider than one of the surface shapes (F1). Other (F2) of said surface configuration (F1, F2), in the direction (132) of the rotation path (U), to have a greater length than said maximum overlap surface (UEF ₅₎ The electric motor according to claim 72, characterized in that: The other of the surface shapes (F1, F2) (F2) in the direction (132) of the rotational trajectory (U) includes at least one edge region (RBV, RBH) with the largest overlapping surface (RB). the electric motor of claim 73, characterized in that it extends beyond the region (BUE) corresponding to UEF _5). The other (F2) of the surface shapes (F1, F2) is the area (BUE) of the area (BUE) corresponding to the maximum overlapping surface (UEF ₅ ) when viewed from the direction (132) of the rotation trajectory (U). 75. The electric motor according to claim 74, comprising the edge regions (RBV, RBH) on opposite sides.   The other (F2) of the surface shapes (F1, F2) has an angle region wider than an angle obtained by dividing 360 ° by the number of the stator units (52) in the direction (132) of the rotation trajectory (U). 77. The electric motor according to any one of claims 73 to 75, having a length spanning (WB).   At least one of said surface shapes (F1, F2) has an end profile (118, extending transversely to said rotational path (U), extending differently from the radial direction (R). An electric motor according to any one of claims 63 to 76, comprising: (120, 128, 130).   78. The electric motor according to claim 77, wherein the end regions (128, 120) that intersect when overlap begins differ from the radial direction (R) in different ways.   79. Electric motor according to claim 77 or 78, characterized in that the end regions (130, 118) which intersect immediately before the end of the overlap differ in a different manner from the radial direction (R).   80. The electric motor according to any one of claims 63 to 79, wherein one of the surface shapes (F1, F2) is configured to resemble a polygon.   The electric motor according to any one of claims 63 to 80, wherein one of the surface shapes (F1) is configured to resemble a trapezoid.   The electric motor according to any one of claims 63 to 81, wherein one of the surface shapes (F1 ') is configured to resemble a rectangle.   83. The electric motor according to claim 82, wherein one of said surface shapes (F1 ') is configured to be substantially square.   84. The electric motor according to any one of claims 63 to 83, wherein one of the surface shapes (F2) is substantially in the form of an annular section.

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