WO2018206324A1 - Stator pour une machine électrique et machine électrique - Google Patents

Stator pour une machine électrique et machine électrique Download PDF

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Publication number
WO2018206324A1
WO2018206324A1 PCT/EP2018/060941 EP2018060941W WO2018206324A1 WO 2018206324 A1 WO2018206324 A1 WO 2018206324A1 EP 2018060941 W EP2018060941 W EP 2018060941W WO 2018206324 A1 WO2018206324 A1 WO 2018206324A1
Authority
WO
WIPO (PCT)
Prior art keywords
line
stator
bridge element
bridge
elements
Prior art date
Application number
PCT/EP2018/060941
Other languages
German (de)
English (en)
Inventor
Lennart Leopold
Original Assignee
Continental Automotive Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2018206324A1 publication Critical patent/WO2018206324A1/fr

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Classifications

    • 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
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0056—Manufacturing winding connections
    • H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
    • H02K15/0081—Connecting winding sections; Forming leads; Connecting leads to terminals for form-wound windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations

Definitions

  • the invention relates to a stator for an electric machine ⁇ Ma.
  • the stator has a laminated core with a plurality of grooves, wherein in the grooves in each case at least one line element of an electrical winding is arranged.
  • line ends of the line elements protrude in the axial direction out of the end face.
  • the line ends preferably form part of the winding head of the stator.
  • the invention also relates to an electric machine with a stator.
  • Electric machines which are used as motors or generators, each have a rotor and a stator, which are magnetically active.
  • stator or rotor line elements of a winding or coil are inserted.
  • the line elements may be, for example, an insulated wire or winding rods in the form of copper rods. If copper rods are used as line elements, then the line elements can be arranged in a so-called bar winding.
  • the line elements of the electrical winding in particular the line ends of the line elements, must be connected to each other in electrical machines according to a specific scheme.
  • the so-called “twist process” be ⁇ known. In such a process the led out of the end face of the laminated core conductor ends of the conduit members together as far as twisted in the circumferential direction of the electric machine or bent, so " getwisted “until the line elements to be connected abut each other and can be connected together.
  • windings produced by the so-called twist process have the disadvantage that they have a lot of installation space in the axial direction occupy, which is at the expense of the active length and thus the power density of the electric machine.
  • stator of an electrical machine.
  • the stator includes a stator main body having a plurality of slots and segmented windings.
  • the segmented windings consist of winding rods which are inserted into the grooves of Stator ground stressess and Verbin ⁇ extension rods which connect the respective ends of the winding bars to each other, together.
  • the invention is based on the object, the structure of an electrical machine, in particular a stator of the
  • the invention provides a stator for an electrical machine.
  • the stator has a laminated core with several grooves. In each case at least one line element of an electrical winding is arranged or received in the grooves.
  • At a front side of the laminated core projecting cable ends of Conduit elements in the axial direction from the end face of the laminated core out.
  • the at least one line element can be, for example, an insulated wire or an insulated rod, for example a copper rod or a copper rod.
  • axial direction is meant the main direction of extension of the electrical machine or of the stator, ie in particular the direction in the direction of the axis of rotation of the electric machine
  • one side of an end plate of the laminated core of the stator can form an end face
  • the invention is characterized in that at least one electrical connection is provided by means of a bridge element between at least two of the line ends and / or the bridge element is part of the winding head.
  • bridge element is meant in particular a connecting element which is formed from an electrically conductive material and is arranged to electrically connect at least two line ends of the line elements to one another connect to. The connected line ends are further arranged in different ones of the plurality of slots of the laminated core.
  • connection is meant here that in ⁇ example, a line end of a line element - a line end of a first line element in a groove of the laminated core in the circumferential direction of the stator with a Lei ⁇ tion end of another line element - a line end of a second line element - in another or other slot of the stator is electrically connected.
  • the bridge member can therefore be adapted to provide or paired into ⁇ special electrical connection between two of the line ends of the plurality of line elements to produce.
  • the bridge element is formed as a one-piece sheet metal part.
  • “Sheet portion” is preferably meant a rolled metal. Be ⁇ vorzugt the sheet metal part or the bridge member is formed of copper.
  • the thickness of the sheet metal part is preferably narrower or thinner than the width of the sheet metal part.
  • the sheet metal part is particularly so connected to the at least two cable ends that the width of which extends in the axial direction of the plate package. a narrow side of the sheet metal part is therefore preferably the end face of the laminated core faces.
  • the cross sectional area of the bridge member is preferably adapted to a cross-sectional area of the respective line elements.
  • the cross-sectional area of the bridges ⁇ elements is identical to the cross-sectional area of the line ⁇ elements.
  • the cross-sectional area of the bridge member with the cross-sectional area of the Kausele- ment with which the bridge member is electrically connected to the same. by "integrally” here is preferably gemei nt, that the bridge element as a part or a piece, that is integrally formed.
  • the bridge element has a curved shape in the circumferential direction of the electric machine or the stator.
  • the bridge element is preferably adapted in the circumferential direction to the, in particular radial, shape or the radius of the laminated core
  • the bridge element in the circumferential direction may have a predetermined radius of curvature, in particular a constant or variable size.
  • the bridge element has the advantage that an electrical connection between the line ends of the line elements can be produced in a particularly simple and reliable manner. Furthermore, by the connecting element, the axial length of the line elements can be reduced. As a result, material can be saved and the size of the electric machine can be reduced. Due to the reduced size and the design of the connecting element As a sheet metal part, the weight of the electric machine is also reduced.
  • the invention also includes developments, the characteristics of which provide additional advantages.
  • the Brü ⁇ ckenelement is further formed step-shaped.
  • the bridge element in cross-section, in particular perpendicular to the main extension direction, a stepped shape or a stepped profile.
  • stepswise a zigzag shape or getreppte form is meant in particular.
  • the bridge element a plurality of stages, each stage comprising two legs or stages leg.
  • Each step leg is preferably inclined to a reference plane, respectively in a given before ⁇ angle to the
  • the legs of one step of the step-shaped bridge element can preferably be arranged at a predetermined angle to one another Alternatively, it may be provided that the respective stages have the same angle of their legs to each other.
  • each step leg with respect to the reference plane has a lower slope than the other step leg of the two adjacent step legs, in particular based on the same reference plane.
  • the step-shaped bridge element therefore preferably has a plurality of or a plurality of step legs, each step leg having a predetermined pitch relative to the reference plane or being arranged at a predetermined angle inclined to the reference plane.
  • the step legs may be inclined with respect to the preceding, adjacent step leg alternately to the reference plane and away from the reference plane.
  • the step legs preferably have the same orientation or are aligned identically or extend in the same direction.
  • the stages leg are such disposed Anei ⁇ Nander that they move away in an upward from the reference plane.
  • the steps are arranged in such a way that the step edges facing the reference plane and the distance of the step edge to the reference plane increases successively. Due to the stepped design of the bridge element, there is the advantage that, if several bridge elements connect each ⁇ - line ends of the stator to each other, a minimum distance between the bridge elements, is minimized in spite of radial dimensions ensured. Thereby can
  • the bridge element has a first end region which is connected to a first line end of the at least two line ends, wherein the first end region has an angled or bent shape and rests against one side of the line end ,
  • the first end region of the bridge element can be arranged at a predetermined angle to the remaining or remaining part of the bridge element.
  • the end region rests flat on one side of the line end at a predetermined distance from the end face of the laminated core.
  • the bridge element advantageously has a second end region opposite the first end region, which is connected to a further line end of the at least two line ends, wherein the second end region has a trapezoidal shape and bears against one side of the further line end.
  • the second end region preferably runs straight to the front side.
  • trapezoidal shape it is meant that the bridge element, in particular the sheet metal part, terminates in this area with a trapezoidal shape, the second end area is preferably designed as a trapezoidal prism
  • groove is meant in particular a recess or groove here. This groove serves to remove material from the bridge element when connecting the bridge element to the line end, in particular by welding, in order to be able to produce a cohesive connection with the line end.
  • a further embodiment provides that in the grooves in each case an inner pipe element and an outer pipe element are arranged side by side or one above the other, wherein the bridge element electrically connects the inner line ⁇ element, which is a groove opening of the groove, with the outer pipe element of another groove ,
  • the line elements are part of a two-layer winding.
  • two line elements - internal line ⁇ element and external line element - are arranged in a groove.
  • the inner conduit member is the conduit member which is directed to the slot opening of the groove.
  • the inner cable member is connected to a corresponding circumferential outer pipe element which is arranged in a different groove than connected to the Brü ⁇ ckenelement inboard conduit member.
  • the outer line element with a corresponding circumferential direction inside line element, which is arranged in a different groove than the outer element connected to the bridge element be connected.
  • the inner line element has a different length in the axial direction compared to the outer line element, wherein the inner lying line element is formed starting from the front side in the direction longer than the outer Lei ⁇ tion element.
  • the connected Lei ⁇ ends which are electrically connected to the connecting element, of different lengths.
  • the line end of the outer pipe member is such ge ⁇ arc that the line end of the outer Lei ⁇ processing elements extending radially along the end face of the laminated core.
  • the line end of the line au ⁇ refracting external element from the internal managerial processing element extends away.
  • the minimum distance between the bridge elements can be for example 1 mm perpendicular to the axial direction. Due to the minimum distance, short circuits, in particular in low-voltage applications, between the electrically conductive components of the stator, in particular between the bridge elements, can be avoided particularly reliably. As a result, the electric machine can be operated particularly reliably and safely.
  • the inner pipe element and the outer pipe element have the same length in the axial direction.
  • the first Conduit element and the second line element identical or identical.
  • the connected line ends and the bridge element can preferably be connected in a materially bonded manner.
  • the cohesive connection may be a welded connection and / or a solder connection, in particular a brazed connection.
  • the connected line ends and the bridge element are connected by means of an electrically conductive adhesive. This results in the advantage that the connected line ends can be connected to the coupling unit in a particularly simple and cost-effective manner.
  • the line ends and / or the bridge element are at least partially surrounded by a potting compound.
  • the potting compound may be formed for example of a plastic or resin or silicone.
  • the line ends and / or the bridge element can be soaked, dripped, potted or overmolded with the potting compound.
  • the potting compound ensures that the cable ends and the connecting element are electrically insulated. By potting a cost-effective way of electrical insulation of the current-carrying components of the electric machine is possible.
  • the potting compound gives the winding head - the line ends and the bridge element - ⁇ additional stability.
  • the potting compound of the winding head can be thermally connected to a housing of the electric machine or a cooling structure, such as a cooling channel. In this way, heat can be released from the winding heads to the housing or the cooling structure via the potting compound. By the heat dissipation efficiency of the electric machine can be increased.
  • the invention also includes an electric machine with the stator according to the invention.
  • the electric machine has a plurality of bridge elements, wherein a number of the bridge elements, in particular on an end face of the stator, coincides with the number of slots of the laminated core of the stator.
  • the electrical machine on a plurality of bridge elements wherein a number of bridge elements, in particular ⁇ sondere at an opposite end of the stator, is greater than or less than a number of the slots of the laminated core of the stator.
  • the respective bridge elements are connected to the respective line ends of the line elements such that a minimum distance is formed in the radial direction between the bridge elements.
  • the minimum distance between the respective bridge elements is preferably between 0.5 mm and 3 mm, more preferably between 1 mm and 2 mm.
  • the invention also includes a motor vehicle with an electric machine.
  • the motor vehicle is preferably designed as a motor vehicle, in particular as a passenger car.
  • the invention also includes developments of the electric machine according to the invention and of the motor vehicle, which have features as they have already been described in connection with the developments of the stator according to the invention. For this reason, the corresponding WEI are developments of the electric machine and the invention of the motor vehicle according to the invention here not again be ⁇ wrote.
  • Fig. 1 is a schematic representation of an embodiment of an electrical machine with a stator with a plurality of line elements and an embodiment of a bridge element in a perspective view;
  • FIG. 2 shows a schematic representation of the electric machine of FIG. 1 with a plurality of bridge elements in a perspective view
  • Fig. 3 is a schematic representation of the bridge element in a plan view
  • FIG. 4 shows a schematic illustration of a further embodiment of an electrical machine having a stator with a plurality of line elements and a further embodiment of a bridge element in a perspective view;
  • Fig. 5 is a schematic representation of the electrical machine of Fig. 4 with a plurality of bridge elements in a perspective view.
  • the exemplary embodiment explained below is a preferred embodiment of the invention.
  • the described components of the embodiment each represent individual features of the invention that are to be considered independently of one another, which also each independently further develop the invention and thus also individually or in a different combination than the one shown as part of the invention.
  • the described embodiment can also be supplemented by further features of the invention already described.
  • FIG. 1 and Fig. 2 an embodiment of a stator 1 of an electric machine is shown.
  • FIG. 4 and FIG. 5 show a further embodiment of a stator 1 of an electrical machine.
  • a stator 1 of an electric machine is shown in a perspective view.
  • the stator 1 may, for example, be part of an alternator and / or prime mover of a motor vehicle, in particular of a passenger car.
  • the stator 1 has a laminated core 2, which may be formed in a conventional manner from soft magnetic sheet metal layers, which are electrically insulated from each other and stacked along an axial direction x or layered.
  • axial direction x is meant a main extension direction, which coincides in particular with the axis of rotation of the electric machine.
  • the laminated core 2 has grooves 3 in which line elements 4 of an electrical winding are inserted.
  • the line elements 4 are preferred as isolated rods, so-called ⁇ pins are formed.
  • the line elements 4 are insulated copper bars.
  • FIG. 1 shows that the line elements 4 are part of a two-layer winding. This can be seen, inter alia, from the fact that in a groove 3 in each case two line elements 4 - an inner line element 7 and an outer Lei ⁇ processing element 8 - are arranged.
  • the inner line element 7 is the line element 4, which is directed or turned to the slot opening of the groove 3.
  • the bridge element 9 has a curved shape in the circumferential direction u of the stator 1.
  • the bridge element will be discussed in more detail below.
  • the inner conduit member 7 with a circumferentially u corresponding outer conduit member 8, which is arranged in a different groove 3 than the inner conduit member 7, respectively.
  • the line elements 4 are, as shown in FIG. 1 can be seen the same.
  • the line elements 4 - internal Lei ⁇ processing elements 7 and outer line elements 8 - are formed in the embodiment shown in Fig. 1 and Fig. 2 as rods or rods with a rectangular profile or cross-section. Due to the rectangular, straight shape such line elements are also referred to as I-pin.
  • the line ends 6 of the line elements 4 have, in particular in the axial direction x, the same length. In particular, the line elements 4 are of equal length.
  • the bridge element 9, in particular a first end region 10 of the bridge element 9, abuts against one side of the line end 6 of an inner line element 7.
  • the bridge member is located at 9 to-facing on one of the groove opening side of the pipe end 6 of the inner Lei ⁇ tung element 7.
  • the bridge element 9 abuts the line end 6 of the inner line element 7 at a predetermined distance from the end face 5.
  • the bridge element 9, in particular a second end region 11 of the bridge element 9 lying opposite the first end region 10 bears against an outer line element 8 arranged adjacent to a groove in the circumferential direction u of the stator 1.
  • the bridge element 9, in particular the second end region 11 of the bridge element 9 rests against a side of the outer line element 8 facing away from the groove opening.
  • the first end portion 10 or end portion of the bridge member 9 forms an extension of the inner conduit member 7 in the axial direction x of the stator 1.
  • first end is meant the portion at a first end of the bridge member 9 which is parallel to the conduit end 6 in axial
  • the first end region 10 has an opening, in particular through-hole, or recess or hole on. This opening serves to remove material from the bridge element when connecting the bridge element 9 to the line end 6 by welding in order to produce a material connection with the line end 6.
  • the first end portion 10 of the bridge element 9 is formed in cross-section substantially rectangular. In this case, agrees a width of the first end 10 with the width of the inner line ⁇ elements 7, which extends perpendicular to the axial direction x ER-, match.
  • the second end region or end section of the bridge element 9 forms an extension of the outer line element 8 in the axial direction x of the stator 1.
  • second end region is meant the section at a second end of the bridge element 9, which is parallel to the line end 6 in the axial direction
  • the first end portion 11 and the second end portion 11 of the bridge member 9 have different geometries.
  • the first end portion 11 is substantially rectangular in cross-section, with the second end portion 11 at a lower portion adjacent to the conduit end 6 of the outer conduit member 8.
  • the side or edge facing the front side 5 runs parallel to the front side 5.
  • the side of the trapezoidal projection facing the front side 5 extends at a predetermined angle inclined to the front side 5 of FIG
  • the end face 5 opposite side of the trapezoidal approach can be arranged inclined at a predetermined angle to the end face 5.
  • the side can extend at an angle of 115 ° inclined to the axial direction x or in a direction perpendicular to the axial direction x of 65 °.
  • the second end portion 11 may be formed as or in the manner of a rectangle with corner portion. Further, the second end portion 11, as well as the first end portion 10, an opening, in particular through hole, or recess or have a hole. This opening serves to connect the bridge element 9 to the line end 6 by welding material remove from the bridge element 9 to produce a material connection with or to the line end 6.
  • the bridge element 9 may have a height of 20 mm in the axial direction.
  • the first end region 10 and the second end region 10 have a height of 20 mm.
  • the first end portion 10 has a width perpendicular to the axial direction of 4.2 mm.
  • the second end region 11 has two different shapes due to the trapezoidal projection
  • the second end region 11 has a width of 8.4 mm. In the area of the rectangular area, which adjoins the trapezoidal section, the second end area 11 has a width of 6, 9 mm.
  • the trapezoidal extension extends in the axial
  • Direction x between 6 mm and 7.1 mm.
  • the rectangular portion adjacent to the trapezoidal portion extends in the axial direction x with a length of 13 mm or 13.1 mm. Due to the curved shape of the bridge element 9, the second end region 11 has a length of 1.5 mm perpendicular to the axial direction x.
  • the bridge element 9 extends perpendicular to the axial direction x with a total extension of 64.6 mm.
  • the central area between the first end area 10 and the second end area 11 has a length or extension perpendicular to the axial direction x of 52 mm.
  • the thickness or thickness of the bridge element 9 is preferably 1.5 mm.
  • the bridge element 9 is formed as a sheet metal part.
  • the bridge element 9 is formed as a stamped bent sheet metal part. In the manufacture of such sheet metal parts are punched from a sheet and bent into a predetermined shape.
  • the bridge ⁇ element 9 is, as shown in FIG. 1 and Fig. 2 can be seen, stepped. With "stepped" is in particular an im
  • the bridge element 9 in cross section, in particular perpendicular to the main direction of extension or axial direction x, a step shape or a stepped profile.
  • the bridge element 9 has a plurality of steps 12, wherein each step 12 has two legs 13.
  • the legs 13 of each step 12 of the stepped bridge element 9 are arranged at a predetermined angle to each other.
  • the first end region 10 and the second end region 11 also each form a leg 13.
  • the bridge element 9 is arcuate.
  • the bridge element 9 is adapted in the circumferential direction u to the radius, in particular outer radius, of the laminated core 2.
  • the stator 1 is shown with a plurality of bridge elements 9.
  • all line elements 4 are connected in pairs with a bridge element 9.
  • the bridge elements 9 are arranged such that adjacent bridge elements are arranged at a predetermined distance in the radial direction, perpendicular to the axial direction x, to each other.
  • the distance between two adjacent bridge elements 9 is one millimeter.
  • the respective bridge elements are arranged parallel to one another in a predetermined, in particular uniform, distance.
  • the step-shaped bridge element 9 is shown in a plan view. From Fig. 3 shows how the individual step legs of the step-shaped, arched bridge element 9 are arranged or aligned with each other. Overall, the bridge element 9 shown in FIG. 3 has thirteen adjacent step legs 13. The individual step legs 13 are aligned relative to a reference plane B. In other words, the respective step legs 13 of the step-shaped bridge element 9 are aligned or arranged at a predetermined angle inclined to the reference plane B. In other words, the respective step legs 13 have a predetermined pitch relative to or relative to the reference plane B.
  • each step of the step-shaped bridge element 9 has one of the step legs with adjacent step legs the reference plane B has a smaller pitch than the other step leg of the two adjoining step legs.
  • the step-shaped bridge element 9 therefore preferably has a plurality of or a plurality of step legs, each step leg having a predetermined pitch relative to the reference plane B or being arranged at a predetermined angle inclined to the reference plane.
  • the orientation of the individual step legs 13 with respect to the reference plane B will be described below with reference to FIG.
  • the first step leg 13.1 is aligned along the reference plane B.
  • the second step leg 13.2 adjoins the first step leg 13.1 and is aligned at an angle of 31 ° to the reference plane B.
  • the third step leg 13.3 adjoins the second step leg 13.2 and is aligned at an angle of 15 ° to the reference plane B or relative to the reference plane B.
  • the fourth step leg 13.4 adjoins the third step leg 13.3 and is oriented at an angle of 35 ° to the reference plane B.
  • the fifth step leg 13.5 adjoins the fourth step leg 13.4 and is aligned at an angle of 23 ° to the reference plane B.
  • the sixth step leg 13.6 adjoins the fifth step leg 13.5 and is aligned at an angle of 42 ° to the reference plane B.
  • the seventh step leg 13.7 adjoins the sixth step leg 13.6 and is aligned at an angle of 30 ° to the reference plane B.
  • the eighth step leg 13.8 adjoins the seventh step leg 13.7 and is aligned at an angle of 50 ° to the reference plane B.
  • the ninth step leg 13.9 adjoins the eighth step leg 13.8 and is aligned at an angle of 38 ° to the reference plane B.
  • the tenth step leg 13.10 adjoins the ninth step leg 13.9 and is aligned at an angle of 69 ° to the reference plane B.
  • the eleventh step leg 13.11 adjoins the tenth step leg 13.10 and is aligned at an angle of 45 ° to the reference plane B.
  • the twelfth step leg 13.12 adjoins the eleventh step leg 13.11 and is aligned at an angle of 69 ° to the reference plane B.
  • an extension of the respective step legs in the direction of the reference plane B and a height of the respective step legs in a direction of a further reference plane A, which extends perpendicular to the reference plane B, is indicated.
  • the dimensions given in FIG. 3 are given in millimeters and refer to the corresponding reference planes A or B.
  • the first step leg 13.1 has an extension of 5.2 mm from the reference plane A into the reference plane B
  • the second step leg 13.2 has an extension of 5.2 mm starting from the first step leg 13.1
  • the third step leg 13.3 has an extension of 4, 9 mm, starting from the second step leg 13.2
  • the fourth step leg 13.4 an extension of 4.9 mm starting from the third step leg 13.3, the fifth step leg 13.5 a
  • the first step leg 13.1 has an extension of 1.5 mm from the reference plane B in the further reference plane A
  • the second step leg 13.2 has an extension of 1.4 mm from the first step leg 13.1, the third step leg 13.3 an extension of 2.8 mm, starting from the second step leg 13.2, the fourth step leg 13.4 an extension of 1, 6 mm starting from the third step leg 13.3, the fifth step leg 13.5 an extension of 3.5 mm starting from the fourth step leg 13.4, the sixth step leg 13.6 an extension of 2.4 mm starting from the fifth step leg 13.5
  • the ninth step leg 13.9 an extension of 4.1 mm starting from the eighth step leg 13.8, the tenth step leg 13.10 an extension of 1.7 mm starting from the ninth step leg 13.9
  • the eleventh step leg 13.11 an extension of 4.1 mm starting from the tenth step leg 13.10, the twelfth
  • the thirteenth stage is applied to the leg 13:13 line end 6 of the inner pipe element 7 and the first stage leg 13.1 of the cable end 6 of the au ⁇ refracting external line member 8.
  • the bridge element 9 in an area which faces the end face 5 of the laminated core 2, an arcuate transition.
  • the bridge element 9 in an area which faces the end face 5 of the laminated core, an arcuate transition.
  • the thirteenth stage leg 13:13 and the first stages leg 13.1 in the axial direction x are formed longer than the da commonlie ⁇ constricting stages leg 02/13 to 12/13.
  • the second end region 11 described above corresponds to the first step leg 13.1 and the first end section corresponds to the thirteenth step leg 13.13.
  • FIGS. 4 and 5 show a further embodiment of the stator 1 for an electrical machine.
  • the internal conduit elements 7 have a rectangular shape.
  • the inner pipe elements 7 have a rectangular shape in cross section.
  • the pipe ends of the outer pipe elements 8 are curved or bent.
  • the respective end of the outer line elements 8, ie the respective line end of the outer line elements 8, is bent in such a way that the line end is parallel to the
  • the outer conduit elements 8 have a rectangular shape. Due to the bent line ends such line elements 7 are also referred to as C-pin. In other words, such line elements have a C-shape in longitudinal section.
  • the bridge element 9 bridges in the connected state of the two line ends 6 a total of six grooves 3 of the laminated core 2. The bridge element 9 thus skips four grooves. Between the connected line ends 6, some of the remaining line ends 6 are arranged in the circumferential direction in between. As can be seen in FIG. 5, the stator has a plurality of bridge elements 9.
  • the bridge element 9 according to the embodiment in FIG. 4 and FIG. 5, like the embodiment shown in FIGS. 1 and 2, is designed as a sheet metal part and has a curved shape in the circumferential direction u of the stator 1.
  • the arched or arcuate shape of the bridge element 9 is adapted to the circumferential contour of the laminated core 2 of the stator 1.
  • the bridge element 9 in FIGS. 4 and 5 likewise has a first end region 10 and a second end region 12.
  • the first end region 10 is connected to the inner line end 7, the first end region 10 having an angled shape and abutting one side of the inner line element 7.
  • the end portion 10 rests flat on one side of the line end 6 of the inner pipe element 7 at a predetermined distance from the end face 5 of the laminated core 2.
  • the bridge element 9 has a second end region 11 opposite the first end region 10, which is connected to the outer line end 8, wherein the second end region 11 has a trapezoidal shape and bears against one side of the line end of the outer line element 8.
  • trapezoidal mold is meant that the bridging element 9 terminates in this region having a trapezoid shape.
  • the second end portion 11 is preferably being as a trapezoidal prism forms ⁇ .
  • the bridge element to the second end portion a groove 14 which extends parallel to the end face 5 of the
  • Laminated core 2 extends.
  • groove is meant in particular a depression or groove.
  • the line ends 6 and the bridge element 9 will be materially connected to one another by welding. After connecting the respective line ends 6 with the bridge element 9, the line ends and / or the bridge element are at least partially surrounded by a potting compound. Overall, the example shows how a space-reduced bridge winding head can be provided by the invention.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un stator (1) pour une machine électrique. Le stator (1) comprend un empilement de tôles (2) pourvu de rainures (3) multiples, au moins un élément de conduction (4) d'un enroulement électrique étant respectivement agencé dans les rainures (3). Sur une face avant (5) de l'empilement de tôles (2), des extrémités (6) de conduction des éléments de conduction (4) s'étendent dans la direction axiale (x) en sortant de la face avant (5). En outre, au moins une connexion électrique est établie au moyen d'un élément de pont (9) entre au moins deux des extrémités (6) de conduction des éléments de conduction (4), les extrémités (6) de conduction étant agencées dans différentes rainures (3) parmi les rainures (3) multiples de l'empilement de tôles (2). L'élément de pont (9) est destiné à connecter électriquement les au moins deux extrémités (6) de conduction en tant que pièce en tôle monolithique et présente une forme bombée dans la direction circonférentielle (u) de la machine électrique.
PCT/EP2018/060941 2017-05-10 2018-04-27 Stator pour une machine électrique et machine électrique WO2018206324A1 (fr)

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DE102017207885.5A DE102017207885B4 (de) 2017-05-10 2017-05-10 Stator für eine elektrische Maschine und elektrische Maschine
DE102017207885.5 2017-05-10

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WO2018206324A1 true WO2018206324A1 (fr) 2018-11-15

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KR20230029766A (ko) * 2020-06-19 2023-03-03 브루사 일렉트로닉 아게 전기 기계용 고정자

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EP1039616A2 (fr) * 1999-03-19 2000-09-27 Honda Giken Kogyo Kabushiki Kaisha Structure du stator d'un moteur
US20010010442A1 (en) * 2000-01-31 2001-08-02 Hitachi, Ltd. And Hitachi Car Engineering Co., Tld. Stator of rotating electric machine
US20050189833A1 (en) * 2004-02-27 2005-09-01 Unique Product & Design Co., Ltd. Stator winding structure of a motor or a generator
EP1639685A1 (fr) * 2003-07-01 2006-03-29 Compact Dynamics GmbH Machine a champ glissant
US7723879B2 (en) * 2006-12-12 2010-05-25 Nidec Corporation Motor having multiple busbar plates and wire for the same
US20120019081A1 (en) * 2010-07-20 2012-01-26 Denso Corporation Stator for electric rotating machine
EP2437378A1 (fr) * 2010-09-29 2012-04-04 Magneti Marelli S.p.A. Machine électrique dotée d'un enroulement de stator avec des barres rigides et procédé de construction correspondant
DE112010000704T5 (de) * 2009-02-18 2012-09-13 Toyota Jidosha K.K. Elektrisches Stromverteilungselement für einen Stator und Verfahren zur Herstellung desselben
US20130020890A1 (en) 2011-07-21 2013-01-24 Honda Motor Co., Ltd. Stator for electric rotary machine
US20130076175A1 (en) * 2011-09-22 2013-03-28 Paul F. Turnbull Connection module for a bar wound stator assembly and method of manufacturing a bar wound stator assembly
US20130200743A1 (en) * 2012-02-08 2013-08-08 Honda Motor Co,. Ltd. Stator for rotary electric machine
EP3088124A1 (fr) * 2015-04-16 2016-11-02 Magneti Marelli S.p.A. Procédé de soudage par laser de deux éléments métalliques adjacents d'un enroulement de stator avec barres rigides pour une machine électrique

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RU2275729C1 (ru) * 2004-10-15 2006-04-27 Павел Юрьевич Грачев Обмотка электрической машины
JP5789570B2 (ja) * 2012-07-03 2015-10-07 アイシン・エィ・ダブリュ株式会社 ステータ
KR101998420B1 (ko) * 2012-12-26 2019-07-09 현대모비스 주식회사 헤어핀 접속기구 및 이를 구비한 헤어핀 권선모터

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039616A2 (fr) * 1999-03-19 2000-09-27 Honda Giken Kogyo Kabushiki Kaisha Structure du stator d'un moteur
US20010010442A1 (en) * 2000-01-31 2001-08-02 Hitachi, Ltd. And Hitachi Car Engineering Co., Tld. Stator of rotating electric machine
EP1639685A1 (fr) * 2003-07-01 2006-03-29 Compact Dynamics GmbH Machine a champ glissant
US20050189833A1 (en) * 2004-02-27 2005-09-01 Unique Product & Design Co., Ltd. Stator winding structure of a motor or a generator
US7723879B2 (en) * 2006-12-12 2010-05-25 Nidec Corporation Motor having multiple busbar plates and wire for the same
DE112010000704T5 (de) * 2009-02-18 2012-09-13 Toyota Jidosha K.K. Elektrisches Stromverteilungselement für einen Stator und Verfahren zur Herstellung desselben
US20120019081A1 (en) * 2010-07-20 2012-01-26 Denso Corporation Stator for electric rotating machine
EP2437378A1 (fr) * 2010-09-29 2012-04-04 Magneti Marelli S.p.A. Machine électrique dotée d'un enroulement de stator avec des barres rigides et procédé de construction correspondant
US20130020890A1 (en) 2011-07-21 2013-01-24 Honda Motor Co., Ltd. Stator for electric rotary machine
US20130076175A1 (en) * 2011-09-22 2013-03-28 Paul F. Turnbull Connection module for a bar wound stator assembly and method of manufacturing a bar wound stator assembly
US20130200743A1 (en) * 2012-02-08 2013-08-08 Honda Motor Co,. Ltd. Stator for rotary electric machine
EP3088124A1 (fr) * 2015-04-16 2016-11-02 Magneti Marelli S.p.A. Procédé de soudage par laser de deux éléments métalliques adjacents d'un enroulement de stator avec barres rigides pour une machine électrique

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