CN104904104A - Coil former for a field coil, field coil arrangement, insulation mask, stator arrangement and also stator for a homopolar machine - Google Patents
Coil former for a field coil, field coil arrangement, insulation mask, stator arrangement and also stator for a homopolar machine Download PDFInfo
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- CN104904104A CN104904104A CN201480004688.9A CN201480004688A CN104904104A CN 104904104 A CN104904104 A CN 104904104A CN 201480004688 A CN201480004688 A CN 201480004688A CN 104904104 A CN104904104 A CN 104904104A
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- 230000005284 excitation Effects 0.000 claims description 114
- 201000011180 Dental Pulp Calcification Diseases 0.000 claims description 17
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- 238000004512 die casting Methods 0.000 claims description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- 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
- H02K21/02—Details
- H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
- H02K21/046—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with rotating permanent magnets and stationary field winding
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a coil former (13) for a field coil arrangement (11) for insertion into a stator arrangement (9) of a homopolar machine (1), comprising: - one or more coil former parts (16) for receiving an annular field coil (12); and - one or more holding elements (121) which are provided on the one or more coil former parts (16) and are arranged on the coil former parts (16) such that they point radially outward when the coil former parts (16) are fitted on the field coil (12).
Description
Technical field
The present invention relates to the field of the homopolar machine with the excitation coil structure fixed with stator.
Background technology
The motor of homopolar machine form is applicable to certain application, requires very little torque ripple and very little cogging torque in this application, is especially occurring that electric fault is as under short circuit and analogue.Especially for for the application in the steering of motor vehicle, as turning to, homopolar machine can support that drive unit uses.
By the known a kind of homopolar machine of German patent application DE102010043970, wherein the rotation of excitation coil structure and internal rotor is arranged in stator apparatus at a right angle.Excitation coil structure now protrudes in the interior zone between two part rotor.
In order to excitation coil structure is arranged in the inside of stator apparatus, usually this stator apparatus must provide in the mode of two or more parts because otherwise magnet exciting coil is inserted in stator apparatus, fixed excitation coil and guide the connection wire being used for magnet exciting coil to be very complicated technically in stator apparatus.
Owing to expecting to carry out pre-installation to stator apparatus with regard to structure and motors designs aspect, therefore the degree of freedom being connected wire is accordingly guided to be very limited for magnet exciting coil being arranged on stator interior with being used for.So far method does not ensure the enough durability when fixed excitation loop construction in addition.Difficulty is especially the connection wire outwards guided for excitation coil structure, because they must be arranged in the region of the air-gap between stator tooth and rotor pole in pre-installation stator apparatus situation.But due to the wire thickness situation of connection wire that will use, this is very difficult, because they are thicker than therebetween air-gap.
The object of the invention is, so the excitation coil structure being used for building homopolar machine is fixed in stator apparatus in a straightforward manner, namely can realize the high reliability of the motor be so configured to.
Of the present invention open
This object by a kind of according to claim 1, for the bobbin of the magnet exciting coil of homopolar machine and by according to the excitation coil structure of claim arranged side by side, stator and the method for installing excitation coil structure in the stator apparatus of homopolar machine realize.
Other favourable design of the present invention provides in the dependent claims.
According to first aspect, arrange a kind of bobbin for excitation coil structure, this excitation coil structure, for inserting in the stator apparatus of homopolar machine, comprising:
-one or more for keeping the bobbin parts of the magnet exciting coil of annular; With
-one or more holding element be arranged on described one or more bobbin parts, can be fixed on bobbin whereby around on the stator apparatus of bobbin outer rim.
The one or more holding elements be arranged on described one or more bobbin parts especially can so be arranged on bobbin parts, and namely they radially outward point to when bobbin parts are installed on magnet exciting coil.
According to another aspect, arrange a kind of excitation coil structure for inserting in the stator apparatus of homopolar machine, comprise the magnet exciting coil of above-mentioned bobbin and annular, it is contained in described one or more bobbin parts.
The design of above-mentioned bobbin is, constructs an excitation coil structure, and it can insert stator apparatus inside and be fixed on there.Bobbin has suitable maintaining body for this reason, and it has one or more holding element, and excitation coil structure can be fixed on the position of wishing in stator apparatus inside by the latter.Bobbin is so formed for this reason, namely can realize being fixed on prespecified position in the columniform stator apparatus inside of external stator.Can arrange the fixed mechanism with one or more retaining element, it is such as by means of screw, bolt for this reason, and the connection of kayser or other form fit or power cooperation or material fit provides.Integral type, the maintaining body of bobbin, bobbin forms excitation coil structure whereby, so forms, after being inserted by excitation coil structure in columniform stator apparatus inside, namely can be implemented in the fixing installation at the place place limited in advance in stator apparatus.
In addition, one or more bobbin parts can have cross section that especially outwards open, U-shaped, for holding magnet exciting coil.
According to a kind of execution mode, holding element can correspond to a slide block, and it especially has the screwed hole for holding screw.
Can specify, holding element has setting element, for being positioned in the radially-inwardly outstanding retaining element in the internal voids of groove in the internal voids of stator apparatus or stator apparatus.
Can specify, holding element has clamping element, and it is designed to, for being positioned in the stator slot in the internal voids of stator apparatus.
Multiple bobbin parts can tangentially be put together each other or put together each other in the axial direction.
According to another execution mode, described one or more holding element can circlewise or ring section shape ground form and in the outside that it radially outward points to, there is mechanism, especially the housing of the void formation of through hole or channel shaped, for bobbin being fixed in the inside of a columniform structure, especially in the inside of columniform stator apparatus.
According to another aspect, a kind of retaining element of the fixed mechanism for stator apparatus is set, comprises:
-for power ordinatedly and or form fit insert columniform stator apparatus inner loop around stator slot in matrix; With
-be arranged on matrix, diametrically can the setting element of elastic deflection.
In addition, retaining element can be made of plastics, and especially as die casting, or is made up of stamped sheet metal as bool.
According to another aspect, a kind of cage for isolating the stator coil on stator tooth being set, comprising:
Isolated component between the side of-one or more denticle for being arranged in stator tooth and the coil sides of stator coil; With
-above-mentioned retaining element.
In addition, multiple isolated component can pass through retaining element, and especially bridge-type ground, is interconnected.
According to another aspect, a kind of columniform stator apparatus for homopolar machine is set, there is the columniform internal voids for holding rotor, wherein, arrange one in inside at least in part around stator slot or in inside at least in part around, extend radially inwardly, for the backstop of excitation coil structure.
In addition, multiple above-mentioned retaining element for fixing above-mentioned excitation coil structure can be arranged in stator slot.
Stator apparatus especially can by multiple stator tooth section structure, and they support one or more stator tooth respectively, and wherein, stator tooth has above-mentioned cage at least partially.
According to another aspect, a kind of stator for homopolar machine is set, comprises:
-there is the stator apparatus of the columniform internal voids for holding rotor;
-one or more retaining element be arranged in internal voids; With
-above-mentioned excitation coil structure;
Wherein, the holding element of excitation coil structure can be coupled with described one or more retaining element, especially can lock, excitation coil structure and internal voids to be kept coaxially.
In addition, excitation coil structure can have overall diameter, and it is less than the interior diameter of the internal voids of stator apparatus.
Can specify, at least one in holding element has slide block, and it is maintained in stator apparatus by screw.
According to a kind of execution mode, magnet exciting coil can pass through screw electrical contact.
According to a kind of execution mode, excitation coil structure can have overall diameter, it is greater than the interior diameter of the internal voids of stator apparatus, wherein, described one or more holding element is flexibly formed, and excitation coil structure can insert internal voids neutralization in the axial direction and be locked in there by described one or more retaining element thus.
In space, retaining element especially includable portion around stator slot or around projection.
According to another aspect, a kind of method for building the stator for homopolar machine being set, comprising:
-insert above-mentioned excitation coil structure in the stator apparatus with columniform internal voids; With
-with stator apparatus at least in part around stator slot or one or more retaining element power ordinatedly, material fit ground and/or form fit be coupled one or more holding element, for being fixed in the internal voids of stator apparatus by excitation coil structure.
Accompanying drawing is sketched
The preferred embodiment of the present invention is explained in detail below by means of accompanying drawing.Shown in accompanying drawing:
Fig. 1 is the viewgraph of cross-section of the homopolar machine by having the excitation coil structure be arranged in stator apparatus inside;
Fig. 2 is the excitation coil structure for inserting in the homopolar machine of Fig. 1;
Fig. 3 is the detailed view of the cross section by the stator apparatus for homopolar machine;
Fig. 4 is the perspective view of the bobbin of another execution mode, its for hold have flexible, for being positioned at the magnet exciting coil of the setting element in stator apparatus; With
Fig. 5 is another execution mode of bobbin, and it has the setting element arranged obliquely;
Fig. 6 is the scrap detail view of another motor, and it has another stator apparatus, installs another excitation coil structure thereon;
Fig. 7 is the perspective view of a stator tooth section, and it is for building another stator apparatus;
Fig. 8 a and 8b is the perspective view of the example of cage;
Fig. 9 is the viewgraph of cross-section of the stator tooth section of retaining element by having cage and the fixed mechanism installed;
Figure 10 a and 10b is the perspective view of the execution mode of the holding element of bobbin;
Figure 11 is the local of the viewgraph of cross-section by being positioned at the other excitation coil structure in retaining element;
Figure 12 is the view of the retaining element as the component separated with cage;
Figure 13 a and 13b is the view of the design be made up of multi-part of the cage with the different isolated component implemented;
Figure 14 a and 14b is the view of the bool of metal as retaining element;
Figure 15 a and 15b is the view of the profile of the end of the inside sensing of the denticle of stator tooth section in the region of stator teeth groove;
Figure 16 a and 16b is the viewgraph of cross-section of the stator by having the excitation coil structure inserted in stator apparatus;
Figure 17 is the view of the complete cage with retaining element, and wherein the end surface of stator tooth is also isolated;
Figure 18 a and 18b is the view of excitation coil structure, its have radially multiple or with the clamping element given prominence to of radial skew ground;
Figure 19 is schematic cross-sectional view, wherein arrange not with around the stator apparatus of stator slot and excitation coil structure kept by backstop and snap ring; With
Figure 20 be have around stator slot stator apparatus and there is the view of excitation coil structure of bobbin, bobbin has flexible ring spring.
The description of execution mode
Fig. 1 illustrates the longitudinal cross-sectional view by homopolarity (one pole) motor 1.Homopolar machine 1 has shell 2, and it has the case member 21 of tank shape and closes at the end cover part 22 opened wide of the case member 21 of tank shape.
Form bearing at the bottom side of the case member 21 of tank shape and keep space 3, insert clutch shaft bearing 4 wherein.Cover part 22 has opening 23, and the second bearing 5 is arranged in this opening.The axle 6 of homopolar machine 1 is kept by the first and second bearings 4,5 and is reached by cover part 22 in the environment of homopolar machine 1.
Axle 6 forms rotor 7.Rotor 7 has Part I rotor 71 and Part II rotor 72, they stagger in the axial direction and be arranged on axle 6 spaced reciprocally.Part rotor 71,72 respectively have rotor pole, and wherein, each second rotor pole of each part rotor 71,72 is provided with permanent magnet 8, and its pole is directed diametrically.Part rotor 71, the quantity of the rotor pole 8 of 72 is even number and the polarity being arranged on permanent magnet 8 is wherein identical for each part rotor 71,72.
Rotor 7 is surrounded by stator apparatus 9, and it inserts in the case member 21 of tank shape, and wherein, the excircle of stator apparatus 9 corresponds essentially to the inner periphery of the case member 21 of tank shape, and stator apparatus is maintained in shell 2 securely thus.
Stator apparatus 9 has stator coil 10, and it is each in the illustrated embodiment around a stator tooth layout.One or more stator coil 10 can also surround multiple stator tooth in other execution mode.
The excitation coil structure 11 of annular is substantially set, wherein arranges the magnet exciting coil 12 of annular.Magnet exciting coil 12 so remains on stator apparatus 9 by means of bobbin 13, and namely excitation coil structure 11 extends at two part rotor 71, and in the space arranged between 72, this space is formed by the layout separately of part rotor 71,72 on axle 6.Magnet exciting coil 12 has a winding substantially, and its coil surface extends transverse to the axis of rotor 7 or axle 6.That is, the winding of magnet exciting coil 12 extends around the rotation of rotor 7.Especially the winding of magnet exciting coil 12 and rotor 7 are arranged with one heart.In the illustrated embodiment excitation coil structure 11 insert stator apparatus 9 neutralize by screw 14 be maintained at there, screw engagement is in the screw thread in excitation coil structure 11.
Fig. 2 illustrates the exemplary view of excitation coil structure 11.Excitation coil structure 11 comprises magnet exciting coil 12, and it such as can be prefabricated into the winding of quadrature cycle, and namely this winding has the cross section of rectangle mutually.Such as, by means of suitable fixed mechanism, bonding agent, bonding paint and analog, can ensure, after taking off up-coiler, keep annular shape.The winding of magnet exciting coil 12 has the overall diameter of the interior diameter being less than stator apparatus 9 and is less than the interior diameter of overall diameter of rotor 7.
Magnet exciting coil 12 is furnished with multiple, and three in the illustrated embodiment, bobbin parts 16, they are inserted on winding.Bobbin parts 16 are formed with the cross section of U-shaped substantially.Bobbin parts 16 can so be arranged on magnet exciting coil 12, and namely the supporting leg of the cross section of U-shaped surrounds the base apical grafting of the cross section of the side of magnet exciting coil 12 and the U-shaped of bobbin parts 16 on the inner peripheral surface of the magnet exciting coil 12 of annular.Bobbin parts 16 circular segment ground forms the tangential dimension with four/mono-to half of the circumference of the internal voids of the magnet exciting coil 12 respectively with annular.In the illustrated embodiment, the circular segment bobbin parts 16 that two bobbin parts 16 of size with 1/4th of the circumference of the internal voids of the magnet exciting coil 12 of annular and have the size of the circumference of the half of internal voids are set.
On outside the coil of magnet exciting coil 12 bobbin parts 16 be open and there is bindiny mechanism 19, for reliably keeping the slide block 17 as holding element.Bindiny mechanism 19 can such as be formed with the form fit of slide block 17 or connection that power coordinates, slide block 17 reliably remains on bobbin parts 16 thus, especially resists the power of pulling force and tangential effect.Slide block 17 has the female hole of band to be fixed by screw 14, and excitation coil structure 11 reliably can be remained in stator apparatus 9 by the screw 14 in stator apparatus 9 thus.
Fig. 3 illustrates the detailed view in the region of stator apparatus 9, arranges excitation coil structure 11 at its place.Stator apparatus 9 be provided with on this within it periphery around stator slot 18 (groove), be arranged in wherein for the stator hole holding screw 14.Stator slot 18 can or be processed via cutting technology or by laminated mould.
When building homopolar machine 1, stator apparatus 9 is installed to for 12 times in the case member 21 of tank shape not having magnet exciting coil, wherein, and can by means of the backstop restriction fitting depth in shell 2.In the case member 21 of tank shape, also can arrange shell aperture 24, wherein, stator apparatus 9 so inserts in shell 2, and namely shell aperture 24 is alignd with the stator hole in stator apparatus 9.
Such as by means of installation supplementary structure, excitation coil structure 11 be inserted in stator apparatus 9 after insertion Part II rotor 72 and remain on the height of stator slot 18.Excitation coil structure 11 is positioned such, and the threaded openings namely in slide block 17 is alignd with the shell aperture 24 in the case member 21 of tank shape and the stator hole in stator apparatus 9.Insert screw 14 by the shell aperture 24 in shell 2, it is engaged in the screw thread in slide block 17, wherein, is outwards drawn in stator slot 18 by bobbin parts 16 by stretching screw 14.Thus magnet exciting coil 12 to enter between slide block 17 and bobbin parts 16 and process be kept in position.The length of screw 14 is so arranged, and namely screw is reliably engaged in the internal thread of slide block 17, but does not contact magnet exciting coil 12 and can not damage thus.
Free space neutralization between two stator tooths of the connection wire insertion stator of magnet exciting coil 12 is by means of fixed mechanism, such as bonding agent, immobilization material, clamp or or papery cover, locking, prevents from skidding off in the air-gap between the inner periphery of stator apparatus 9 and the excircle of rotor 7.
Can apply film on the outside of shell 2 after stretching screw 14, it should prevent moisture or foul from entering from outside by shell aperture 24 and stator hole.With regard on needs, film can apply by means of suitable bonding agent or resin.
Excitation coil structure 11 is set in the manner described above, between excitation coil structure 11 and stator apparatus 9, realizes one firmly connect.Especially thus excitation coil structure 11 is reliably fixed relative to the rotor 7 rotated in the stator slot 18 of stator apparatus 9.By the heat transfer using screw 14 to can be provided in the improvement between excitation coil structure 11 and shell 2 in addition, wherein, screw 14 can realize from the quick heat removal magnet exciting coil 12.Heat extraction effect and thermal convection are important for the function of homopolar machine 1, if do not have other cooling possibility for.
The electrical contact of magnet exciting coil 12 can be realized via screw 14, if screw 14 is conductions and is conducted through shell aperture 24 and stator hole by means of slider in an alternative execution mode.Electric current is connected and can be realized by two approach:
A) in motor case, arrange lug boss in the longitudinal direction of motor drive shaft in shell 2, such as crimping (groove), raceway groove and similar structures, place connector wherein, and the outside connector leading to two screws 14 of itself and is separated from each other.The electrical contact with magnet exciting coil 12 is realized by the screw thread in the slide block 17 of conduction formation by means of screw 14.Magnet exciting coil 12 is connected with two ends on two slide blocks 17 for this reason.
B) alternatively, directly from outside to screw, electrical contact can be realized on 14.
Substitute screw 14, also can use rivet (Rivet).
Excitation coil structure 11 can not have slide block 17 ground to form yet, and wherein, arranges retaining element, and it is arranged in stator apparatus 9 by means of screw 14 in advance and then excitation coil structure 11 can be clamped in wherein.Retaining element forms the projection with corresponding location (kayser) mechanism in stator apparatus 9 inside, and the bobbin 13 of the correspondence of excitation coil structure 11 can clamp thereon after inserting in stator apparatus 9 thus.The direction of the location between excitation coil structure 11 and retaining element can be or axially or tangential.Can arrange anchor point on the short side of retaining element under positioning scenarios in the axial direction, it extends abreast with axial on outer peripheral face.When tangential location, anchor point can be arranged on the side of retaining element, and the end face that this side is parallel to stator apparatus 9 respectively extends.
Substitute by screw 14, also by welding or brazing, retaining element can be remained in stator apparatus 9.Excitation coil structure 11 now can be located by means of retaining element in an identical manner.
Retaining element also can be seated in by means of press-fit in the stator slot 18 in stator apparatus 9.In the case, must ensure, retaining element also reliably remains on stator apparatus 9 under being press-fitted in the heat load in motor operation by this.
Substitute the retaining element inserted before excitation coil structure 11 inserts in stator apparatus 9, can arrange the retaining element of ring spring as fixed mechanism, it has a kind of section, such as tee-section.Ring spring is so out of shape, and namely it can insert in stator apparatus 9, is especially arranged in the stator slot 18 of there.Formed by the section of ring spring the annular of the interior diameter of stator apparatus 9 narrowing or in the region of stator slot 18 around projection, wherein, ring spring overlaps stator slot 18 on both sides.
Excitation coil structure 11 can configure the first ring with less diameter around edge and have the larger-diameter maintaining body as correspondence holding element second around edge, wherein, extent between the diameter at two edges so designs, namely, when engaging, first the edge with small diameter is conducted through the narrowing in stator apparatus 9 inside and the following excircle at it encirclement ring spring that are caused by ring spring with a flexible distortion.The edge with larger diameter now leans on the opposite side of ring spring.Two edges and the ring spring of excitation coil structure 11 form form fit thus and are connected.This modification has advantage, between the edge that the connection wire of magnet exciting coil 12 is contained in excitation coil structure 11 and prevent from being thus slipped in air-gap.In addition winding can directly be arranged on bobbin 13, and it is substantially single part ground and and is formed with the cross section of the U-shaped outwards opened circlewise.
In another embodiment, retaining element can by substituting in the projection of installing regularly of stator apparatus 9 inside, and it can be formed by the thin slice be correspondingly shaped of certain quantity.That is, substitute the stator slot 18 in stator apparatus 9, be formed in circumferentially around projection.Alternatively, projection may not be and forms completely continuously, has independent on the contrary, the projection that piecewise is arranged.
As shown in Fig. 4, bobbin 13 can by rotational symmetric, outwards open, annular, the element of the cross section with U-shaped makes, reel magnet exciting coil 12 thereon.Additionally, bobbin 13 can have flange 20 radially outstanding on two edges as holding element.Excitation coil structure 11 can be located by radially outstanding flange 20 with the retaining element kayser be arranged in stator apparatus 9 inside or be directly pressed in stator slot 18 thus.The clip that radially outstanding flange 20 also can be understood as the projection had in the inside being arranged on stator apparatus 9 connects.
Excitation coil structure 11 directly can be clamped in stator slot 18 in this bobbin 13 situation of use, there is no need for the additional parts of fixed excitation loop construction 11.
In one embodiment, the edge of bobbin 16 can form with star and have convex nose in its end.The resilience and snapping in when reaching final position in stator slot 18 during installation process of this convex nose.
As shown in fig. 5, bobbin 13 can alternatively be constructed by two and half shells 30, and they have setting element 31 at its outer rim place, and setting element is outstanding under certain angle, wherein, between the sidewall 32 and setting element 31 of corresponding half shell 30, an obtuse angle is formed.Setting element 31 is by mutually relatively directed and mutually overlapped in the other side by half being mutually stacked together of shell 30, and they form X-shaped shape in a cross section view thus.
If the excitation coil structure 11 with this bobbin 13 is inserted in stator apparatus 9, so setting element 31 is flexibly out of shape and is positioned at this stator slot when reaching the stator slot 18 being arranged in stator apparatus 9.
Certainly, previously described, before insertion excitation coil structure 11, the retaining element inserted in stator apparatus 9 can be furnished with corresponding setting element, and they are positioned in stator apparatus 9 when inserting excitation coil structure 11.
Fig. 6 illustrates the more detailed view of the local of another motor, especially another homopolar machine 100, has another stator apparatus 101, installs another excitation coil structure 130 thereon.
Another stator apparatus 101 can construct by means of the stator tooth section 102 respectively with one or more stator tooth, such as, shown in the perspective view of Fig. 7.Stator tooth section 102 has microscler extension, and its length corresponds to the length of the stator apparatus 101 that will be formed.Stator tooth section 102 has the ground section (yoke section) 103 of cylindrical section shape and one or more denticle 104 inwardly outstanding diametrically.
Denticle 104 is furnished with the tooth top parts 105 of two mutual in the axial direction relative misalignment in the end opposite with ground section 103.Stator teeth groove 106 is set between tooth top parts 105.By fitting together of multiple stator tooth section 102 of implementing in a circumferential direction, form stator apparatus 101 and stator teeth groove 106 forms the stator slot 18 extended around central axis, it is for fixing this other excitation coil structure 130.Stator tooth section is such as interconnected by bonding or welding or is coupled in the case member 21 of tank shape by press-fit.Stator apparatus 101 around stator slot 18 there is the degree of depth, it such as at least can correspond to the height of radial direction of tooth top parts 105.
Stator tooth section 102 is wound before assembly.Before winding stator tooth section 102, lay cage 110 on the stator teeth, for avoiding the direct contact between stator coil 10 and the material of relevant stator tooth section 102 and making its electric insulation thus.
Example for cage 110 illustrates in the perspective in Fig. 8 a and 8b.In Fig. 8 a, cage 110 is shown with illustrating.This cage 110 has two phases isolated component 111 opposite one another, and they extend in the longitudinal directionl and are made up of the section of roughly U-shaped respectively.Each isolated component 111 has base portion isolated part 113 and tooth top isolated part 114, they be angularly connected to substantially flat denticle isolated part 115 transverse on the edge that longitudinal direction L extends, isolated component 111 is formed with the section of U-shaped thus, it corresponds essentially to by stator tooth section 102, denticle 104, the section of the U-shaped that ground section 103 and tooth top parts 105 are formed.Cage 110 has two isolated components 111, and their denticle isolated part 115 is each other in the mode that face, especially face are parallel, opposite, wherein, should hold the denticle 104 of relevant stator tooth between denticle isolated part 115.Stator coil 10 is winding in the section of the U-shaped of isolated component 111.
The isolated component 111 of cage 110 is in this embodiment by being held togather each other for the retaining element 116 of fixing other excitation coil structure 130, be arranged in retaining element bridge-type between isolated component 111, limit the mutual place position of two isolated components 111 especially on its tooth top isolated part 114 and thus.When the cage 110 of the one-piece so formed inserts or is installed on stator tooth, retaining element 116 is arranged in stator teeth groove 106 and neutralizes to be connected with the form fit of the profile of stator tooth by isolated component 111 and be maintained at there.Compared with the cage of routine, with regard to the isolation of winding conducting wire when reeling with regard to depositing, the cage 110 of Fig. 8 a and 8b provides identical characteristic in principle.
Fig. 9 illustrates the viewgraph of cross-section of the stator tooth section 102 by having the cage 110 installed in the region of retaining element 116.In principle, by the excitation coil structure 130 that the retaining element 116 additionally arranged can keep this other, it can be furnished with corresponding holding element 121, for being fixed in other stator apparatus 101 by other for this other excitation coil structure 130 thus.
Retaining element 116 can have convex nose 117 that is flexible or that suspend flexibly for this reason, and it is arranged on matrix 119 and is furnished with radially-inwardly outstanding setting element 118.Convex nose 117 bar shaped ground form and can diametrically or, as shown in figure, in the axial direction, that is, be parallel to longitudinal direction L, extend.Substitute the convex nose 117 of bar shaped, it also can be arranged as flexible location bridge, and this location bridge is maintained on matrix 119 in its end.
Matrix 119 has feature so on its size and shape, and namely it is fully accommodated within the inner end that relevant stator teeth groove 106 neutralizes the relevant stator tooth not protruding from relevant stator tooth or relevant stator tooth section 102 diametrically.Matrix 119 especially can insert stator teeth groove neutralize diametrically form fit connect ground or power be bearing in ordinatedly on stator tooth top 105.
In addition, convex nose 117 be placed in the matrix 119 of retaining element 116 edge directed in the axial direction on and the elasticity of flexure (diametrically) extend on matrix 119 on the side radially-inwardly pointed to.Setting element 118 can hemisphere ground or cylindrically to be formed in the Shangdi, direction of cylinder axis at the circumferencial direction of the stator apparatus 101 that will be formed.Setting element 118 protrudes from cage 110 and when inserting in stator apparatus 101, radially-inwardly directed.According to design, setting element 118 also can have other geometry, such as fork-shaped, square, with star, taper, pyramidal, annular or ellipse.
Cage 110 such as can pass through Conventional processing methods, and such as plastics injection moulding, manufactures integratedly.
The retaining element 116 of fixed mechanism, it is provided by cage 110, can be arranged on and other stator apparatus 101 times fixing, reliably to be remained in stator apparatus 101 by other excitation coil structure 130 for excitation coil structure 130 that is corresponding, that be furnished with holding element 121 are set.
Cage 110 in order to install be inserted in stator tooth section 102 stator tooth on or insert in the axial direction and be inserted in stator teeth groove 106 by matrix 119 and be securely held on it.Prevent cage 110 from unclamping diametrically by arranging stator tooth top 105.
Other excitation coil structure 130 can be fixed in other stator apparatus 101 by means of above-mentioned retaining element 116.According to structural design situation, this is fixed on this and at least carries out at two some places.That is, stator tooth is installing the cage 110 and conventional cage (not shown) that can to arrange selectively during stator apparatus 101 and to have retaining element 116, its not there is retaining element and can correspondingly freely select thus for, the quantity of the retaining element 116 with convex nose 117.But in order to reliably keep other excitation coil structure 130, the retaining element 116 that at least two have corresponding convex nose 117 is set.
Figure 10 a and 10b illustrates the perspective view of the execution mode of the holding element 121 of the bobbin 120 for other excitation coil structure 130.Holding element 121 is for being fixed on stator apparatus 101 by other excitation coil structure 130.In the illustrated embodiment, holding element 121 is the ring section of the segmental arc angle with 180 ° respectively, and its axial width corresponds essentially to the axial width of magnet exciting coil 12.Holding element 121 has corresponding housing 122, for setting element 118 acting in conjunction of the convex nose 117 with retaining element 116.Figure 10 c illustrates the cross section by bobbin 120.The local of the viewgraph of cross-section by being buckled in the other excitation coil structure 130 in retaining element 116 shown in Figure 11, wherein setting element 118 is engaged in the corresponding housing 122 of the holding element 121 of the bobbin 120 for magnet exciting coil 12.
Figure 10 a illustrates the holding element 121 as semiorbicular fan-shaped section, the housing 122 installed with having distribution, and it is configured for the hole holding hemispheric setting element 118.Figure 10 b illustrates that holding element 121 is as semiorbicular fan-shaped section, have and arrange about its Width approximate centre, on the outside in a circumferential direction around groove as housing 122, for holding the corresponding columniform setting element 118 of the retaining element 116 be correspondingly configured to.Ring segment-shaped holding element 121 can by metal, and plastics or similar material are formed, and it is suitable for the bobbin 120 forming dimensionally stable.Ring segment-shaped holding element 121 can or as annex, namely as the separate part separated, form or be combined in the bobbin 120 for magnet exciting coil 12.
As shown in Figure 10 c, bobbin 120 have annular or multiple ring segment-shaped bobbin parts 123, its as magnet exciting coil 12 housing element and in side, namely in the axial direction, restriction magnet exciting coil.The side radially outward pointed to of bobbin 120 is formed by ring segment-shaped holding element 121, and it is fixedly mounted on one or more housing element 123.Housing element (multiple housing element) 123 and holding element (multiple holding element) 121 formed be used for magnet exciting coil 12 around bobbin 120 or multiple bobbin parts and jointly there is the cross section of roughly U-shaped.
Stator apparatus 101 is constructed by stator tooth section 102 in a known manner.When pre-installation it should be noted that relevant stator tooth section 102 is moulded quantity with what select in advance and inserted on the position limited together with the cage 110 with retaining element 116, to ensure the later fixed function being used for other excitation coil structure 130.Remaining stator tooth section 102 arranges conventional cage.Next the stator tooth section 102 having arranged cage is reeled.
In order to automated visual inspection aspect when mounted better can identification, there is the cage 110 of retaining element 116 and do not have the cage of the routine of retaining element can implement in the mode of different colors.
Following stator tooth section 102 is inserted into and is maintained in the installation station in aid.The stator tooth section 102 that these assemble is interconnected, such as, by welding or technique for sticking or by being expressed in the case member 21 of tank shape.
The excitation coil structure 130 that following installation is other.This other excitation coil structure 130 can be inserted into for this reason and install in auxiliary spindle, to make it so insert in stator apparatus 101, namely it axially boots up in the side of stator slot 18 under coaxial orientation.If other excitation coil structure 130 reaches stator slot 18, the convex nose 117 being so arranged in retaining element 116 wherein can be deflected flexibly, until the corresponding housing 122 that it is inserted into holding element 121 neutralizes reliably keep other excitation coil structure 130 thus.
By around stator slot 18 in suitable retaining element 116 be set and arrange and the holding element 121 of retaining element 116 complementation, it realizes location (kayser) and is connected with form fit in the axial direction thus, can be formed for the other fixed function of excitation coil structure 130 in stator apparatus 101, it comprises firmly puts connection.By the combination of retaining element 116 with cage 110, the increase of the quantity of the separate part when installing stator can be avoided.In addition, arrange the cage having arranged retaining element 116 can be attached in a straightforward manner in existing installation procedure.
As shown in Figure 12, retaining element 116 also can as providing to the parts that cage 110 separates and inserting in corresponding stator teeth groove 106 after the cage of routine is arranged on a stator tooth of stator tooth section 102 or multiple stator tooth.Retaining element 116 can such as be connected by means of power, and such as, by means of spring force, or form fit connection is maintained in stator teeth groove 106.
In addition, cage 110 also can be made up of multiple part.Such as shown in the view of Figure 13 a and 13b, the isolated component 111 that cage 110 also can be implemented by multiple part difference provides.In this embodiment, cage 110 can when arrange have retaining element 116 mounted thereto isolated component 111 and not with retaining element isolated component 111 on the stator teeth assembled in an installation.As seen by Figure 13 a and 13b, be parallel to longitudinal axis and cage 110 is separated into two isolated components 111, each of isolated component has a denticle isolated part 115 thus.If should not arrange retaining element 116 in the stator teeth groove 106 of stator tooth section 102, the isolated component 111 of two identical types not with retaining element 116 so can be set to build corresponding cage 110.If the cage 110 with retaining element 116 should be provided, be so that a stator tooth section 102 uses an isolated component 111 with retaining element 116 and an isolated component 111 without retaining element 116.
Cage 110 also can be formed on multi-part ground to otherwise.Therefore cage 110 also can be divided transverse to its longitudinal direction L, and the first cage parts are designed to be placed on two stator tooth top parts 105 thus.Second cage parts correspond to the first cage parts, unlike, the latter has retaining element 116.By settling upper first cage parts and corresponding second cage parts, the cage 110 of retaining element 116 can be provided with, and the simple cage 110 not with retaining element 116 is set when use two the first cage parts.
When use conventional cage and implement dividually for this reason retaining element, retaining element also can by the material formation being different from cage as retaining element 140.Therefore retaining element 140 such as can use the bool of metal, and it can be made as stamping parts, as it is such as shown in Figure 14 a and 14b.Bool has corresponding setting element 141, and it is formed at location bridge 142 place that can clamp flexibly highlightedly as punching press or punching press body.In the end that two of bridge 142, location is opposite, arrange the support strip 143 extended perpendicular to location bridge 142 (radially outward), for settling retaining element 140 in the region of stator teeth groove 106 or be bearing in the end of denticle 104.Support strip 143 can be simple (see Figure 14 a) or there is U-shaped or other circular contour 146 (see Figure 14 b), for ensureing the flexible maintenance improved.
The stator teeth groove 106 that bool can insert stator tooth section 102 neutralizes the end having arranged support strip 143 by it and be maintained at there by clamping in the mode that power coordinates between stator tooth top part 105.In addition, bool must be configured for providing spring pressure, the direction of the housing of the holding element 121 at excitation coil structure 130 to apply a power on setting element 141, for its lasting fixing.Use the bool of metal, such as, be made up of stamped sheet metal, there is advantage, enough heat extractions can be ensured.
In order to be positioned in the groove of stator tooth section 102 by the retaining element 140 being implemented as bool, can arrange form fit and connect, bool is not pressed out by from the position in the stator teeth groove 106 of stator tooth section 102 when installing excitation coil structure 130 thus.In order to be provided for keeping the form fit of bool to connect, the end of inside sensing of denticle 104 of stator tooth section 102 in the region of stator teeth groove 106, a kind of profile can be had in a circumferential direction, as it is such as shown in Figure 15 a and 15b.This profile such as can have semicircular or leg-of-mutton cross section and with provided by support strip 143, the corresponding profile (not shown) of the contact-making surface 144 opposite with setting element 141 realizes a kind of form fit and connects between retaining element 140 and the end of denticle 104 in the region of stator teeth groove 106.
Except setting element 118, the shape of the bool of metal also can have the contact-making surface 145 such as surrounding setting element 141, and it is radially-inwardly directed upwards towards in the side of the holding element 121 of other excitation coil structure 130.Contact-making surface 145 can contact with the corresponding face 125 of holding element 121, to be provided for the contact-making surface of the improvement of heat extraction when inserting other excitation coil structure 130.
Shown in Figure 16 a and 16b by having the viewgraph of cross-section of the stator of the excitation coil structure 130 inserted in stator apparatus 101, wherein corresponding excitation coil structure 130 is kept by the bool of Figure 14 a and 14b.
The cage 110 of alternate figures 8a and 8b, wherein the face only pointed in a circumferential direction of stator flank can be isolated, as shown in Figure 17, also can provide the complete cage 150 with corresponding retaining element 116, wherein the face of the end face side of stator tooth is also isolated.This complete cage 150 is cylindrically formed substantially, namely have cylindrically around denticle isolated part 151, the seamed edge of its end face side connects corresponding base portion isolated part 152 and tooth top isolated part 153, form thus one around, the section of U-shaped substantially.Cylindrically around denticle isolated part 151 in can hold the columniform denticle 104 of stator tooth.This complete cage 150 can be provided with cut (Trennschnitt) 154, its with the direction of cylinder axis line parallel on extend, so that by the bending realization of the short time of complete cage 150 simply laying or plugging on the stator teeth.Complete cage 150 also can be made up of multiple parts, especially by arranging multiple cut radially.
In another embodiment, also retaining element in the groove of stator tooth section 102 can be abandoned and instead, be configured for the bobbin 161 of another excitation coil structure 160, its have radially multiple or with radial skew to give prominence to, the clamping element 162 of clip or intercell connector form, this is such as shown in the different view of Figure 18 a and 18b.Clamping element 162 flexibly forms and has width, and it roughly corresponds to the width of the stator teeth groove 106 of stator apparatus 101.Clamping element 162 can form point-blank or deviously and flexibly be out of shape when excitation coil structure 160 inserts in stator apparatus 101.If other excitation coil structure 160 be positioned at around stator slot 18 axial location on, so clamping element 162 is flexibly positioned on the side of formation stator teeth groove 106 of stator tooth top to external pressure with by its seamed edge 165 directed in the axial direction.The lead-in of the electric current supply of magnet exciting coil 12 can be directed to radially outwardly in stator apparatus 101 in one or more clamping element 162.
At another, shown in Figure 19, in execution mode, a schematic cross-sectional view is shown, wherein arrange not around another stator apparatus 170 of stator slot 18.Stator apparatus 170 other thus only has a continuous print stator tooth top for each stator tooth.Another excitation coil structure 180 is arranged in stator apparatus 170, and its position is limited by the backstop 171 in other stator apparatus 170 inside.Backstop 171 such as can be configured to the extension extended radially inwardly of multiple stamped sheet metal, and stator apparatus 170 can be configured to by this stamped sheet metal.After other excitation coil structure 180 inserts in other stator apparatus 170, until it leans in backstop 171, lock ring 172 can insert in other stator apparatus 170 in tensioning ground, lock ring is clamped in the end of the inside sensing of stator tooth and is remained there ordinatedly by power, and excitation coil structure 180 is kept in position between backstop 171 and the lock ring 172 inserted thus.In order to reduce the spacing of magnet exciting coil 12 and part rotor 71,72, excitation coil structure 180 can be provided with space 181, and backstop 171 and lock ring 172 are accommodated in this space.
Have around stator slot 18 stator apparatus 170 in another possibility of fixed excitation loop construction 180 can carry out by means of lock ring 172, it is inserted stator slot 18 pre-tensionerly and neutralizes to tilt relative to axial direction a little, and it leans on two axial end portions of stator slot 18 thus.
In an alternative execution mode, it is shown in Figure 20, when have around stator slot 191 stator apparatus 190 also can use another excitation coil structure 192 with bobbin 193 or bobbin parts, it has ring spring 194 as holding element.Ring spring 194 is maintained on bobbin 193 or bobbin parts flexibly and movably, thus excitation coil structure 192 can to insert in stator apparatus 190 and reach around stator slot 191 time with one or more projections mesh to around stator slot 191 in, to keep excitation coil structure 192.
In stator apparatus 190, another possibility of fixed excitation loop construction 192 is, for bobbin 193 arranges containers, it is heated by means of thermal source such as laser or analog.The bonding agent be arranged in containers liquefies thus, and can flow in the cavity for this reason arranged in stator apparatus 190.After liquid adhesive cooling, ensure the fixing of excitation coil structure 192 thus.
Another possibility of connection coordinated for power be to inject material into around stator slot 191 in, wherein, this material is so selected, i.e. its flexible effect of having.If this material around stator slot 191 in form a closed ring, so can use a kind of flexible material, flow into rubber, when the ring opened in holddown groove, can use hard, but the material of flexibility, thermoplastics.If excitation coil structure 192 inserts in stator apparatus 190, this material or compressed and/or be stressed separately thus, produces the confining force being used for corresponding excitation coil structure 192 thus.
Claims (18)
1., for the bobbin (13,120,161,193) of excitation coil structure (11), described excitation coil structure is used for being inserted in the stator apparatus (9) of homopolar machine (1), comprising:
-one or more for keeping the bobbin parts (16,123) of the magnet exciting coil (12) of annular; With
-be one or morely arranged on described one or more bobbin parts (16,123) holding element (20 on, 121,194), bobbin (13) can be fixed on the stator apparatus (9) of the outer rim surrounding bobbin (13) whereby.
2. bobbin according to claim 1 (13), wherein, describedly one or morely be arranged on described one or more bobbin parts (16,) on holding element (20,121,194) be so arranged on bobbin parts (16), namely they radially outward point to when bobbin parts (16) are installed on magnet exciting coil (12).
3. bobbin according to claim 2 (13), wherein, described one or more bobbin parts (16) have cross section that especially outwards open, U-shaped, for holding magnet exciting coil (12).
4. the bobbin (13) according to Claims 2 or 3, wherein, holding element (121) is corresponding to a slide block (17), and it has the screwed hole being particularly useful for holding screw (14), or
Corresponding to a setting element, it is designed to be positioned in a groove (18) in the internal voids of stator apparatus (9) or is positioned in a retaining element (14) radially-inwardly given prominence in the internal voids of stator apparatus (9), or
Have clamping element (162), it is designed to be positioned in the stator slot (18) in the internal voids of stator apparatus (9).
5. bobbin according to claim 1 (120), wherein, described one or more holding element (121) circlewise or ring section shape ground form and in the outside that it radially outward points to, there is a mechanism, especially the housing (122) of through-hole form or the space of channel shaped, for bobbin being fixed in the inside of columniform structure, in the inside of especially columniform stator apparatus (9).
6. excitation coil structure (11), it, for inserting in the stator apparatus (9) of homopolar machine (1), comprising:
-bobbin according to any one of claim 1 to 5 (13,120,161,193); With
The magnet exciting coil (12) of-annular, it is accommodated in described one or more bobbin parts (16,121).
7., for the retaining element (116,140) of the fixed mechanism of stator apparatus (9), comprising:
-matrix (119), its inner loop ordinatedly, material fit ground and/or form fit inserting columniform stator apparatus (9) for power around stator slot (18) in; With
-be arranged on matrix (119), diametrically can the setting element (118,141) of elastic deflection.
8. retaining element according to claim 7 (116), wherein, retaining element (116,140), by plastics, especially as die casting, or as bool by stamped sheet metal, is made.
9., for isolating the cage (110) of the stator coil (12) on stator tooth, comprising:
-one or more isolated component (111), for being arranged between the side of the denticle of stator tooth and the coil sides of stator coil (12); With
-retaining element (116) according to claim 8 or claim 9.
10. retaining element according to claim 9 (116), wherein, multiple isolated component (111) is by retaining element (116), and especially bridge-type ground, is interconnected.
11. for homopolar machine (1,100) columniform stator apparatus (9,101,170), there is the columniform internal voids for holding rotor (7), wherein, arrange one in inside at least in part around stator slot (18) or in inside at least in part around, the backstop (171) that extends radially inwardly, for keeping excitation coil structure (160).
12. stator apparatus according to claim 11 (9), wherein, arrange in the stator slot (18) according to any one of claim 7 and 8, for multiple retaining elements (116,140) of the fixed mechanism of fixing excitation coil structure according to claim 6 (11).
13. stator apparatus (9) according to claim 11 or 12, wherein, stator apparatus (9) is constructed by multiple stator tooth section (102), they support one or more stator tooth respectively, wherein, stator tooth is furnished with cage according to claim 9 (110) at least partially.
14., for the stator of homopolar machine (1), comprising:
-have columniform, for holding the stator apparatus (9) of the internal voids of rotor (7);
-one or more retaining element (116) be arranged in internal voids; With
-excitation coil structure according to claim 6 (11);
Wherein, the holding element (17,20 of excitation coil structure (11), 121,194) can be coupled with described one or more retaining element (116), especially can lock, to keep excitation coil structure (11) coaxially with internal voids.
15. stators according to claim 14, wherein, at least one holding element has slide block (17), and this slide block is maintained in stator apparatus (9) by screw (14).
16. stators according to claim 14, wherein, excitation coil structure (11) has overall diameter, this overall diameter is greater than the interior diameter of the internal voids of stator apparatus (9), wherein, described one or more holding element (121,194) is made up of flexible setting element, and excitation coil structure (11) can to insert in internal voids and in the axial direction there by described one or more retaining element (116) locking thus.
17. stators according to claim 16, wherein, retaining element (116) be included in internal voids around stator slot (18) or around projection.
18., for building the method for the stator being used for homopolar machine (1), comprising:
-excitation coil structure according to claim 6 (11) insertion is had in the stator apparatus (9) of columniform internal voids; With
-by one or more holding element (20,121,194) with described stator apparatus (9) at least in part around stator slot (18) or one or more retaining element (116) power ordinatedly, material fit ground and/or form fit be coupled, so that excitation coil structure (11) is fixed in the internal voids of stator apparatus (9).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310200436 DE102013200436A1 (en) | 2013-01-14 | 2013-01-14 | Coil carrier for an exciter coil, exciter coil assembly and stator assembly for a homopolar machine |
| DE102013200436.2 | 2013-01-14 | ||
| PCT/EP2014/050603 WO2014108563A2 (en) | 2013-01-14 | 2014-01-14 | Coil former for a field coil, field coil arrangement, insulation mask, stator arrangement and also stator for a homopolar machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104904104A true CN104904104A (en) | 2015-09-09 |
| CN104904104B CN104904104B (en) | 2018-06-08 |
Family
ID=49958478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480004688.9A Expired - Fee Related CN104904104B (en) | 2013-01-14 | 2014-01-14 | For the bobbin of magnet exciting coil, excitation coil structure, isolation cover, stator apparatus and the stator for homopolar machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2944015A2 (en) |
| CN (1) | CN104904104B (en) |
| DE (1) | DE102013200436A1 (en) |
| WO (1) | WO2014108563A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539892A (en) * | 2017-03-03 | 2018-09-14 | 丰田自动车株式会社 | Bind round mouth |
| CN110912301A (en) * | 2019-12-11 | 2020-03-24 | 山东大学 | Parallel hybrid excitation brushless claw-pole motor |
| CN111900817A (en) * | 2020-08-10 | 2020-11-06 | 淄博高新区华科大高效节能电机技术研发中心 | Excitation coil fixing device of asynchronous motor |
| CN113993666A (en) * | 2019-07-04 | 2022-01-28 | 喜利得股份公司 | Working tool |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416489A (en) * | 2020-04-29 | 2020-07-14 | 苏州汇智卓安自动化科技有限公司 | Exciting coil heating setting device |
| WO2022039612A1 (en) * | 2020-08-17 | 2022-02-24 | Общество С Ограниченной Ответственностью "Электротранспортные Технологии" | Separately excited electric brushless reluctance motor |
| RU2741053C1 (en) * | 2020-08-25 | 2021-01-22 | Вячеслав Авазович Чукреев | Switched reluctance motor with independent excitation with liquid cooling system |
| EP4037162A1 (en) | 2021-02-02 | 2022-08-03 | Black & Decker, Inc. | Brushless dc motor for a body-grip power tool |
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- 2013-01-14 DE DE201310200436 patent/DE102013200436A1/en not_active Withdrawn
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- 2014-01-14 CN CN201480004688.9A patent/CN104904104B/en not_active Expired - Fee Related
- 2014-01-14 WO PCT/EP2014/050603 patent/WO2014108563A2/en active Application Filing
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| FR2058168A2 (en) * | 1969-08-14 | 1971-05-28 | Sev Marchal | |
| EP0086443A1 (en) * | 1982-02-08 | 1983-08-24 | Hitachi, Ltd. | Fixed field inductor-type generator and method of producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108539892A (en) * | 2017-03-03 | 2018-09-14 | 丰田自动车株式会社 | Bind round mouth |
| US10971960B2 (en) | 2017-03-03 | 2021-04-06 | Toyota Jidosha Kabushiki Kaisha | Cuff support attached to an axial end surface of a stator core |
| CN113993666A (en) * | 2019-07-04 | 2022-01-28 | 喜利得股份公司 | Working tool |
| US11919134B2 (en) | 2019-07-04 | 2024-03-05 | Hilti Aktiengesellschaft | Working tool |
| CN110912301A (en) * | 2019-12-11 | 2020-03-24 | 山东大学 | Parallel hybrid excitation brushless claw-pole motor |
| CN111900817A (en) * | 2020-08-10 | 2020-11-06 | 淄博高新区华科大高效节能电机技术研发中心 | Excitation coil fixing device of asynchronous motor |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014108563A3 (en) | 2015-03-19 |
| WO2014108563A2 (en) | 2014-07-17 |
| EP2944015A2 (en) | 2015-11-18 |
| DE102013200436A1 (en) | 2014-07-17 |
| CN104904104B (en) | 2018-06-08 |
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