WO2022224662A1 - モータ - Google Patents
モータ Download PDFInfo
- Publication number
- WO2022224662A1 WO2022224662A1 PCT/JP2022/012776 JP2022012776W WO2022224662A1 WO 2022224662 A1 WO2022224662 A1 WO 2022224662A1 JP 2022012776 W JP2022012776 W JP 2022012776W WO 2022224662 A1 WO2022224662 A1 WO 2022224662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminals
- terminal
- winding
- guide portion
- winding terminal
- Prior art date
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000013256 coordination polymer Substances 0.000 abstract description 9
- 238000004804 winding Methods 0.000 description 100
- 239000012212 insulator Substances 0.000 description 67
- 230000004048 modification Effects 0.000 description 18
- 238000012986 modification Methods 0.000 description 18
- 210000001503 joint Anatomy 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000000151 deposition Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
-
- 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
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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 present invention relates to motors.
- connection points increases due to parallel connection.
- an insulated wire coated with an insulating material such as a heat-resistant resin is connected to a rotating electrical machine such as a motor, a current is passed through the insulated wire and the terminal to generate heat, thereby reducing the conductor of the insulated wire.
- Fusing techniques are known to expose and allow electrical conduction with terminals. A decrease in productivity can be suppressed by using the fusing technology.
- the purpose is to provide a motor that can improve productivity.
- a motor in one aspect, includes a stator having coils, a crossover wire connecting a plurality of the coils, and a plurality of flat terminals provided on the stator.
- the crossover wire includes a coating film and a conducting wire covered with the coating film and in contact with the flat terminal.
- the plurality of flat plate-shaped terminals extend in the rotation axis direction.
- the motor has a guide portion that guides the connecting wire between the plurality of flat plate-like terminals in the circumferential direction.
- productivity can be improved.
- FIG. 1 is a perspective view showing an example of a stator to which busbar portions are connected according to the embodiment.
- FIG. 2 is an exploded perspective view showing an example of a busbar portion and a stator in the embodiment.
- FIG. 3 is a perspective view showing an example of a winding terminal in the embodiment;
- FIG. 4 is a perspective view showing an example of an insulator around which an insulated wire is wound according to the embodiment.
- FIG. 5 is a side view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- FIG. 6 is a side view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- FIG. 1 is a perspective view showing an example of a stator to which busbar portions are connected according to the embodiment.
- FIG. 2 is an exploded perspective view showing an example of a busbar portion and a stator in the embodiment.
- FIG. 3 is a perspective view showing an example of a
- FIG. 7 is a side view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- FIG. 8 is a side view showing an example of an insulated wire attached to a winding terminal in the embodiment.
- FIG. 9 is a perspective view showing an example of a connection terminal to which an insulated wire is attached according to the embodiment.
- FIG. 10 is a top view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- FIG. 11 is a side view showing an example of a busbar in the embodiment;
- FIG. 12 is an exploded perspective view showing an example of attachment of terminals to busbars in the embodiment.
- FIG. 13 is a top view showing an example of a busbar portion in the embodiment.
- FIG. 14 is a top view showing an example of a busbar in the embodiment;
- FIG. 15 is a side view showing an example of the upper insulator in the first modified example.
- FIG. 16 is a top view showing an example of how the insulated wire is wound around the upper insulator in the first modified example.
- FIG. 17 is a side view showing an example of winding the insulated wire around the upper insulator in the first modification.
- FIG. 18 is a top view showing an example of a stator to which busbars are connected in the second modified example.
- FIG. 19 is a perspective view showing an example of a busbar in the second modified example.
- FIG. 20 is an exploded perspective view showing an example of a busbar in the second modified example.
- FIG. 20 is an exploded perspective view showing an example of a busbar in the second modified example.
- FIG. 21 is a top view showing an example of winding the insulated wire around the upper insulator in the second modification.
- FIG. 22 is a perspective view showing an example of a stator in the third modified example.
- FIG. 23 is an exploded perspective view showing an example of a stator in the third modified example.
- FIG. 1 is a perspective view showing an example of a stator to which busbar portions are connected according to the embodiment.
- FIG. 2 is an exploded perspective view showing an example of a busbar portion and a stator in the embodiment. 1 and 2, illustration of a connecting wire TR, which will be described later, is omitted.
- the motor 1 in the embodiment includes a stator 2 and a busbar portion 80.
- the motor 1 in this embodiment is, for example, an inner rotor type motor.
- the stator 2 and the busbar portion 80 are housed in, for example, a motor housing (not shown). Further, for example, a shaft and a rotor (not shown) are housed on the radially inner peripheral side of the stator 2 .
- the stator 2 and the busbar portion 80 are connected by a plurality of winding terminals T including winding terminals Tb3, Td3, Tc4, Ta5 and Td5 shown in FIG.
- external terminals Xa, Xb, and Xc are further connected to the busbar portion 80 .
- the winding terminal T is an example of a terminal on a flat plate.
- the stator 2 includes a stator core 20, insulators 30, and coils 71-76.
- the coils 71 to 76 when expressed without distinguishing between them, they may be simply referred to as a coil 79 in some cases.
- the stator core 20 in this embodiment is composed of a plurality of fan-shaped pieces 21 to 26 arranged in the circumferential direction, which will be described later.
- the pieces 21 to 26 may be referred to as a piece 29 when the pieces 21 to 26 are not distinguished from each other.
- two pieces 29 adjacent in the circumferential direction form a segment by being connected via a bendable connecting portion.
- pieces 21A and 22A whose front view is shown in FIG. 15 and whose plan view is shown in FIG. 16, constitute segment 20 ⁇ .
- pieces 23 and 24 shown in FIG. 2 constitute segment 20 ⁇ and pieces 25 and 26 constitute segment 20 ⁇ .
- the stator core 20 in this embodiment is formed by joining three segments 20 ⁇ , 20 ⁇ and 20 ⁇ in the circumferential direction.
- the insulator 30 is made of an insulating material such as resin, as shown in FIGS.
- the insulator 30 includes a plurality of upper insulators 31-36 and a plurality of lower insulators 61-66.
- the upper insulators 31 to 36 when they are not distinguished from each other, they may simply be referred to as the upper insulator 39 .
- the upper insulators 31 to 36 are attached to the pieces 21 to 26 respectively from the positive side in the Z-axis direction.
- the lower insulators 61 to 66 are attached to the pieces 21 to 26 respectively from the negative side in the Z-axis direction.
- the upper insulator 39 is provided with a concave portion 30X, for example, on the outer side in the radial direction.
- the recess 30X is used to press the stator core 20 with a jig when the core is press-fitted into the motor housing.
- the winding terminal T is a flat terminal made of a conductive metal such as copper.
- FIG. 3 is a perspective view showing an example of a winding terminal in the embodiment; As shown in FIG. 3, the winding terminal T includes a fixed portion T1, a connection portion T2 extending upward in the axial direction (positive Z-axis direction) from the fixed portion T1, and a fixed portion T1 and a connection portion T2. and a plurality of grooves G1 to G6 formed between.
- the fixed part T1 is inserted into the winding terminal sockets formed in the upper insulators 31 to 36 of the stator 2 .
- connection portion T2 is attached to the busbar portion 80 with a winding terminal clip.
- the winding terminal Tb3 shown in FIG. 2 is attached to the busbar portion 80 by a winding terminal clip Cb3.
- Other winding terminals T are the same.
- the winding terminal T is attached to the busbar portion 80 for explanation of the connection structure. is attached to the
- the plurality of grooves G1 to G6 extend in the X-axis direction of the winding terminal T and are dug down from the radially inner side (Y-axis negative direction side) to the outer side (Y-axis positive direction side). Note that the grooves G1 to G6 are examples of a plurality of recesses.
- FIG. 4 is a perspective view showing an example of an insulator around which an insulated wire is wound according to the embodiment. 4, the pieces 21 and 22 to which the upper insulators 31 and 32 are attached and the lower insulators 61 and 62 to which the pieces 21 and 22 are attached are omitted.
- the coil 71 is formed by winding the insulated wire C1 around the piece 21 via the upper insulator 31 and the lower insulator 61.
- the coil 72 is formed by winding the insulated wire C1 around the piece 22 via the upper insulator 32 and the lower insulator 62 .
- two coils adjacent in the circumferential direction are wound in directions opposite to each other.
- the coil 71 is wound in the clockwise direction (CW)
- the coil 72 adjacent to the coil 71 in the circumferential direction is wound in the counterclockwise direction (CCW).
- the connecting wire TR pulled out from the coil 79 to the upper side in the axial direction (the Z-axis positive direction side) is wound around the winding terminal T attached to the upper insulator 39 .
- the crossover wire TR is wound around a guide portion provided on the upper insulator 39 .
- a guide portion 51 is provided near the central portion of the upper insulator 31 in the X-axis direction, and a guide portion 52 is provided near the central portion of the upper insulator 32 in the X-axis direction.
- the guide portion 51 is arranged, for example, between the two winding terminals Tc1 and Td1 in the X-axis direction.
- the upper insulator 32 is further provided with a guide portion 57 at a position adjacent to the upper insulator 31 in the circumferential direction. It should be noted that hereinafter, when a plurality of guide portions including the guide portions 51, 52 and 57 are expressed without distinguishing between them, they may simply be expressed as a guide portion 59 in some cases.
- the crossover TR pulled out from the coil 71 is routed so as to contact the guide portion 51 before contacting the winding terminal Td1.
- the connecting wire TR pulled out from the coil 72 is routed so as to contact the guide portion 52 before contacting the winding terminal Ta2.
- a connecting wire TR drawn into the coil 72 from the winding terminal Td ⁇ b>1 is wound around the guide portion 57 .
- the crossover TR contacts the winding terminal Tc1 at the contact portion CSc1.
- the crossover TR contacts the winding terminal Td1 at the contact portion CSd1 and contacts the winding terminal Ta2 at the contact portion CSa2.
- the contact portion CS when a plurality of contact portions including the contact portions CSc1, CSd1, and CSa2 are expressed without distinguishing between them, they may be referred to as the contact portion CS.
- the plurality of contact portions CS are provided along a line H1 parallel to the direction in which the connecting wire TR extends. That is, the plurality of contact portions CS are provided at approximately the same height in the Z-axis direction. Further, the contact portion CS is provided between adjacent grooves among the plurality of grooves G1 to G6 of the winding terminal T. As shown in FIG. The contact portion CS in this embodiment is provided, for example, between the grooves G2 and G3 of the winding terminal T shown in FIG. 3 in the axial direction (Z-axis direction).
- grooves are provided on the radially outer sides of the guide portions 51A and 52A, and the contact portions CS are set at the height of the parallel lines H1 in the Z-axis direction. Further, the guide portion 57 is set at a position where excessive slack or tension does not occur in the connecting wire TR when the two adjacent pieces 29 are bent at the bendable connecting portion.
- FIG. 5 is a side view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- FIG. 6 is a side view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- the insulated wire C1 in this embodiment includes an insulating coating CT0 made of an insulator and a lead wire CP made of a conductor. Note that the insulating coating CT0 is an example of a coating film.
- the insulated wire C1 is ultrasonically welded to the winding terminal T, first, as shown in FIG. , is installed in a holding jig (not shown). Next, the ultrasonic horn SH is pressed in the direction indicated by the arrow P1 in FIG. 5, that is, outward in the radial direction (positive Y-axis direction). Vibration is applied to the pressed insulated wire C1 in the direction indicated by the arrow V1 in FIGS. 5 and 6, that is, in the axial direction (Z-axis direction).
- FIG. 7 is a side view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment. As shown in FIG. 7, part CT1 of the peeled coating film CT0 moves to the groove G3.
- FIG. 8 is a side view showing an example of an insulated wire attached to a winding terminal in the embodiment.
- FIG. 9 is a perspective view showing an example of a connection terminal to which an insulated wire is attached according to the embodiment.
- a portion CP1 of the conductor CP deformed by being pressed by the ultrasonic horn SH extends from the contact portion CS to both sides in the axial direction (Z-axis direction).
- the winding terminal T and the conducting wire CP are electrically connected by the conducting wire CP coming into contact with the contact portion CS.
- the ultrasonic horn SH operates, for example, only in the Y-axis direction (vertical direction) indicated by the arrow P1 in FIG.
- the jig is moved in the direction indicated by the arrow X1 in FIG. 10 (X-axis positive direction).
- FIG. 10 is a top view showing an example of a process of attaching an insulated wire to a winding terminal in the embodiment.
- the insulated wire C1 in contact with the contact portions CS provided at substantially the same height in the Z-axis direction is sequentially joined to the winding terminals Ta2, Td1 and Tc1.
- the time required for one bonding is as short as about 0.2 seconds, and the heat generation is small compared to fusing, and there is no need for cooling time. Then, the insulated wire C1 can be joined to the winding terminal T.
- the connecting wire TR is connected to the winding terminal Tc1 shown in FIG. It is cut on the direction side and the X-axis positive direction side of Ta2.
- the coils 71 and 72 which are wound in a single stroke, become coils having Td1 connected in common, so parallel connection by the bus bar is facilitated.
- the connecting wire TR is joined to each winding terminal T in the same manner.
- the motor 1 in the embodiment includes a stator 2 having coils 71 to 76, a connecting wire TR connecting the coils 71 to 76, and a plurality of flat terminals T provided on the stator 2.
- the crossover TR includes a coating film CT0 and a conducting wire CP covered with the coating film CT0 and in contact with a terminal T having a flat plate shape.
- a plurality of tabular terminals T extend in the rotation axis direction.
- the motor 1 has a guide portion 59 that guides the connecting wire TR between the plurality of tabular terminals T in the circumferential direction (X-axis direction). With such a configuration, the productivity of the motor 1 can be improved.
- each winding terminal T to which the connecting wire TR drawn from each coil 71 to 76 is electrically connected is connected to the busbar portion 80 shown in FIG.
- the busbar portion 80 includes four busbars Ba to Bd arranged in the axial direction (Z-axis direction).
- FIG. 11 is a side view showing an example of a busbar in the embodiment;
- the busbars Ba to Bd are made of a conductive material such as copper alloy.
- each of the busbars Ba to Bd has a plurality of winding terminal joints and external terminal joints projecting radially from a ring-shaped main body.
- FIG. 12 is an exploded perspective view showing an example of attachment of terminals to busbars in the embodiment. As shown in FIG. 12, the winding terminal joints including the winding terminal joints Bc1, Bd1, etc. extend in the positive axial direction (upper side in the drawing).
- Each winding terminal T is arranged such that the connecting portion T2 is in surface contact with the winding terminal joint portion in the radial direction.
- a winding terminal clip is attached from the positive direction side in the Z-axis direction to each winding terminal T and each winding terminal joint portion that are in surface contact with each other.
- the winding terminal Ta2 shown in FIG. 12 is fixed by a winding terminal clip Ca2 while being in surface contact with the winding terminal joint Ba2 of the bus bar Ba in the radial direction.
- each winding terminal T and each winding terminal junction are fixed in an electrically connected state.
- spacers 82 and washers 83 may be further attached to the busbars to secure a gap with other busbars.
- At least one of the bus bars Ba, Bb, Bc and Bd is further connected to an external terminal Xa, Xb or Xc.
- each external terminal is also arranged in surface contact with the external terminal joint portion of the bus bar in the radial direction.
- an external terminal clip is attached to each external terminal and each external terminal joint portion that are in surface contact with each other.
- the external terminal Xa shown in FIG. 12 is fixed by an external terminal clip CXa while being in surface contact with the external terminal joint portion BXa of the bus bar Ba in the radial direction.
- external terminals Xb and Xc are also fixed to external terminal joints BXb and BXc, respectively. Thereby, the external terminal and the bus bar are electrically connected.
- the connection may be reinforced with a clip using solder or a conductive adhesive.
- FIG. 13 is a top view showing an example of a busbar portion in the embodiment.
- the cover 89 in this embodiment is made of an insulating material such as resin.
- the cover 89 is formed with a plurality of holes for inserting, for example, winding terminal clips and external terminal clips.
- the cover 89 as shown in FIGS. 1 and 2, has a concave portion or a convex portion for engaging with the upper insulator 39. As shown in FIG.
- FIG. 14 is a top view showing an example of a busbar in the embodiment.
- FIG. 14 shows a state where the cover 89 shown in FIG. 13 is removed.
- the plurality of bus bars Ba, Bb, Bc, and Bd are arranged at substantially the same position when viewed from above.
- the coils 71 to 76 are connected in parallel via the winding terminals T electrically connected to the busbars Ba to Bd. As a result, the winding resistance of the motor 1 can be reduced and the motor characteristics can be improved.
- the embodiment is not limited to this.
- the winding terminal T is formed using oxygen-free copper.
- the insulated wire C1 can be electrically connected without the groove.
- the position of the guide portion 59 provided on the insulator is an example, and the guide portion 59 may be provided other than near the center of the upper insulator 39 in the X-axis direction. Further, a configuration may be adopted in which a plurality of crossover wires TR are wound around one guide portion 59 .
- FIG. 15 is a side view showing an example of the upper insulator in the first modified example.
- the same parts as those shown in the previously described drawings are given the same reference numerals, and overlapping explanations are omitted.
- upper insulators 31A and 32A and lower insulators 61A and 62A are attached to pieces 21A and 22A forming segment 20 ⁇ , and coils 71A and 72A are respectively wound.
- a guide portion 52G is further provided in the upper insulator 32A. Further, as shown in FIG. 15, the height of the guide portion 51A in the axial direction (Z-axis direction) is greater than the height of the guide portion 52A in the axial direction.
- the upper insulator 32A is formed with a depositing portion 52S around which the starting end of the insulated wire C1 constituting the coils 71A and 72A is wound, and the upper insulator 31A is formed with a depositing portion 51E around which the end of the insulated wire C1 is wound.
- FIG. 16 is a top view showing an example of winding the insulated wire around the upper insulator in the first modified example.
- FIG. 17 is a side view showing an example of winding the insulated wire around the upper insulator in the first modification. 17, illustration of the winding terminal T is omitted.
- the connecting wire TRA pulled out from the coil 72A is wound around the guide portion 52G and then comes into contact with the guide portion 51Z.
- a force is applied to the connecting wire TRA between adjacent pieces in the circumferential direction by winding the plurality of pieces in an annular shape.
- the vibration of the motor is transmitted to the connecting wire TRA, and the connecting wire TRA may be slackened or disconnected depending on the resonance frequency.
- the connecting wire TRA forms the coil 71A after coming into contact with the guide portion 51A. Then, the connecting wire TRA pulled out from the coil 71A is further in contact with the guide portion 51A. As described above, the guide portion 51A is formed to be higher than the guide portion 52A because the connecting wire TRA is in contact with the guide portion 51A a plurality of times.
- the insulated wire C1 wound around the depositing portion 51E may be further wound in the opposite direction toward the depositing portion 52S.
- a plurality of crossover wires TR with different potentials may be wound around the guide portion 51A.
- the connecting wires TRA having different potentials may be guided apart from each other in the axial direction (Z-axis direction).
- FIG. 18 is a top view showing an example of a stator to which busbars are connected in the second modified example. 18, illustration of the cover 89B of the busbar portion 80B is omitted.
- the stator 2B in the second modification comprises 12 pieces 20a to 20l. In the following, when the plurality of pieces 20a to 20l are expressed without distinguishing between them, they may be referred to as a piece 20z.
- upper insulators 3Ba to 3Bl and lower insulators 6Ba to 6Bl are attached to the plurality of pieces 20a to 20l, respectively.
- Coils 7Ba to 7Bl are wound around the plurality of pieces 20a to 20l via upper insulators 3Ba to 3Bl and lower insulators 6Ba to 6Bl, respectively.
- winding terminals T are attached to the upper insulators 3Ba to 3Bl, respectively.
- the winding terminals TUa and TYa are attached to the upper insulator 3Ba attached to the piece 20a.
- FIG. 19 is a perspective view showing an example of a busbar in the second modified example.
- the busbar portion 80B in the second modification includes four busbars BW, BV, BU and BY arranged in the axial direction (Z-axis direction).
- Each bus bar is axially spaced apart and opposed by insulating sheets 85B, 86B and 87B, respectively.
- Each bus bar has a winding terminal joint.
- the bus bar BW includes winding terminal junctions BVe, BVk and BVl.
- Each winding terminal joint portion and the winding terminal are electrically connected in a state of surface contact with solder, a conductive adhesive, or the like.
- FIG. 20 is an exploded perspective view showing an example of a busbar in the second modified example. 20, illustration of the insulating sheets 85B, 86B and 87B is omitted.
- external terminals WX, VX and UX are formed integrally with the busbars BW, BV and BU, respectively. External terminals WX, VX, and UX correspond to the power of each phase, W phase, V phase, and U phase, respectively.
- a winding terminal T which is a midpoint terminal, is connected to the bus bar BY, for example.
- FIG. 21 is a top view showing an example of winding the insulated wire around the upper insulator in the second modification.
- the pieces to which the upper insulators 3Ba to 3Bl are attached and the lower insulators 6Ba to 6Bl attached to the pieces are omitted.
- each segment 20 ⁇ , 20 ⁇ and 20 ⁇ is composed of first to fourth pieces.
- Upper insulators 3Ba to 3Bd are attached to each piece.
- Guide portions 5Ba to 5Bd are formed in the upper insulators 3Ba to 3Bd, respectively.
- one or two of the winding terminals T of the first to sixth terminals are attached to each of the upper insulators 3Ba to 3Bd.
- two of a first terminal TA and a second terminal TB are attached to the upper insulator 3Ba.
- a third terminal TC is attached to the upper insulator 3Bb
- a fourth terminal TD and a fifth terminal TE are attached to the upper insulator 3Bc
- a sixth terminal TF is attached to the upper insulator 3Bd.
- the coils wound around the first to fourth pieces respectively correspond to the winding phases of the motor shown in the table of FIG. Also, the winding terminal T in each segment corresponds to the winding terminal T shown in FIG.
- the insulated wire C1 is wound in the opposite direction, that is, from the depositing portion 51E toward the depositing portion 54S. is further wound.
- the insulated wires C1 having different potentials are wound around the guide portions 5Ba and 5Bd shown in FIG.
- the guide portions 5Ba and 5Bd have different axial heights so that the plurality of insulated wires C1 can be spaced apart in the axial direction (Z-axis direction). It is formed to be larger than the portions 5Bb and 5Bd.
- FIG. 21 illustrates a configuration in which the crossover wire TRB is further wound in the opposite direction from the deposited portion 51E toward the deposited portion 54S. configuration.
- stator core is not limited to the segmented cores formed in a fan shape, and may be an integral core formed in a substantially circular shape.
- FIG. 22 is a perspective view showing an example of a stator in the third modified example.
- FIG. 23 is an exploded perspective view showing an example of a stator in the third modified example.
- a stator 2C in the third modification includes a stator core 20C, an upper insulator 30C, and a lower insulator 60C.
- the stator core 20C is an annular member formed, for example, by laminating electromagnetic steel plates in the axial direction (Z-axis direction).
- the upper insulator 30C and the lower insulator 60C are annularly formed so as to cover the stator core 20C from both sides in the axial direction.
- the upper insulator 30C is also formed with a recess 3CX on the radially outer side thereof for pressing the stator core 20 with a jig when the core is press-fitted into a motor housing (not shown). Further, the stator core 20C is further formed with a convex portion 6CX serving as a guide portion to the motor housing.
- the upper insulator 30C into which the winding terminal T as shown in FIG. 23 is inserted is fixed to a jig (not shown). Then, by pressing the ultrasonic horn SH against the winding terminal T while rotating the jig in the circumferential direction, the connecting wire TR can be joined to each winding terminal T in sequence.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
図15は、第1の変形例における上側インシュレータの一例を示す側面図である。なお、以下の各変形例において、先に説明した図面に示す部位と同一の部位には同一の符号を付し、重複する説明は省略する。図15においては、セグメント20αを構成するピース21A及び22Aに、上側インシュレータ31A及び32A、並びに下側インシュレータ61A及び62Aが装着され、さらにコイル71A及び72Aがそれぞれ巻き回される。
また、実施形態ではコイル71乃至76を備えた6スロットのモータについて説明したが、コイルの数はこれに限られない。さらに、外部端子とバスバーとが別部品により構成され、クリップにより接続される例について説明したが、一体に形成されていてもよい。
また、ステータコアは、扇形に形成された分割コアに限られず、略円形に形成された一体型のコアであってもよい。図22は、第3の変形例におけるステータの一例を示す斜視図である。図23は、第3の変形例におけるステータの一例を示す分解斜視図である。図23に示すように、第3の変形例におけるステータ2Cは、ステータコア20Cと、上側インシュレータ30Cと、下側インシュレータ60Cとを備える。第3の変形例において、ステータコア20Cは、例えば電磁鋼板を軸方向(Z軸方向)に積層することによって形成される、環状の部材である。上側インシュレータ30C及び下側インシュレータ60Cは、ステータコア20Cを軸方向における両側から覆うように、環状に形成される。
Claims (8)
- コイルを有するステータと、
複数の前記コイルを接続する渡り線と、
前記ステータに設けられる、複数の平板状の端子と、を備え、
前記渡り線は、被覆膜と、当該被覆膜で覆われ、前記平板状の端子に接触した導線と、を備え、
前記複数の平板状の端子は回転軸方向に延在し、
周方向において、前記複数の平板状の端子の間に、前記渡り線をガイドするガイド部を有する、
モータ。 - 前記渡り線と前記複数の平板状の端子との接触部は、前記渡り線が延在する方向に沿って配置されている、請求項1に記載のモータ。
- 前記接触部は、前記複数の平板状の端子上に、それぞれ複数設けられる、請求項2に記載のモータ。
- 前記平板状の端子には、複数の凹部が形成され、
前記接触部は、軸方向において、前記複数の凹部の間に配置される、
請求項2又は3に記載のモータ。 - 前記複数の平板状の端子及び前記ガイド部は、前記渡り線が延在する方向に沿って並んで配置されている、請求項1乃至4のいずれか1つに記載のモータ。
- 前記導線は、前記複数の平板状の端子と溶着している、請求項1乃至5のいずれか1つに記載のモータ。
- 複数の前記導線は、前記複数の平板状の端子と溶着している、請求項1乃至6のいずれか1つに記載のモータ。
- 前記ステータは、周方向に並んだ複数のピースにより形成され、
周方向において、前記ガイド部と、前記ガイド部が設けられたピースに周方向において隣接する他のピースとの間に、さらに別のガイド部が形成される、請求項1乃至3のいずれか1つに記載のモータ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280011743.1A CN116848761A (zh) | 2021-04-21 | 2022-03-18 | 电机 |
EP22791441.3A EP4329155A1 (en) | 2021-04-21 | 2022-03-18 | Motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021071928A JP2022166606A (ja) | 2021-04-21 | 2021-04-21 | モータ |
JP2021-071928 | 2021-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022224662A1 true WO2022224662A1 (ja) | 2022-10-27 |
Family
ID=83722276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/012776 WO2022224662A1 (ja) | 2021-04-21 | 2022-03-18 | モータ |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4329155A1 (ja) |
JP (1) | JP2022166606A (ja) |
CN (1) | CN116848761A (ja) |
WO (1) | WO2022224662A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015025653A1 (ja) * | 2013-08-21 | 2015-02-26 | 日立オートモティブシステムズ株式会社 | 回転電機および回転電機の製造方法 |
JP2017118671A (ja) * | 2015-12-24 | 2017-06-29 | アイシン精機株式会社 | 回転電機 |
-
2021
- 2021-04-21 JP JP2021071928A patent/JP2022166606A/ja active Pending
-
2022
- 2022-03-18 EP EP22791441.3A patent/EP4329155A1/en active Pending
- 2022-03-18 WO PCT/JP2022/012776 patent/WO2022224662A1/ja active Application Filing
- 2022-03-18 CN CN202280011743.1A patent/CN116848761A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015025653A1 (ja) * | 2013-08-21 | 2015-02-26 | 日立オートモティブシステムズ株式会社 | 回転電機および回転電機の製造方法 |
JP2017118671A (ja) * | 2015-12-24 | 2017-06-29 | アイシン精機株式会社 | 回転電機 |
Also Published As
Publication number | Publication date |
---|---|
CN116848761A (zh) | 2023-10-03 |
JP2022166606A (ja) | 2022-11-02 |
EP4329155A1 (en) | 2024-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5930801B2 (ja) | 車載用モータ、及びそれを用いた電動パワーステアリング装置 | |
JP5140389B2 (ja) | 回転電機用の固定子、及びこれを用いた回転電機 | |
US10622861B2 (en) | Stator and bus bar connector configuration | |
JP3430839B2 (ja) | 固定子の結線構造 | |
US8922079B2 (en) | Electric motor and centralized power distribution member | |
WO2018142845A1 (ja) | ステータの製造方法、モータ | |
WO2013114735A1 (ja) | 回転電機 | |
WO2003096515A1 (fr) | Machine electrique tournante | |
JP5377702B2 (ja) | 回転電機およびその製造方法 | |
JP5991261B2 (ja) | 電動機の製造方法 | |
US11996749B2 (en) | Armature | |
WO2013114734A1 (ja) | コイルユニットの製造方法 | |
US9537366B2 (en) | Magnet-type generator | |
JP2010110144A (ja) | モータコイルの配線部品 | |
JP5304058B2 (ja) | 集中巻線式ステータの製造方法、及び集中巻線式ステータ | |
US11955857B2 (en) | Armature | |
JP2014217160A (ja) | 集配電リング | |
US20180115211A1 (en) | Rotary electric machine | |
WO2022224662A1 (ja) | モータ | |
JP2009106008A (ja) | 回転電機の固定子 | |
US11677290B2 (en) | Motor | |
JP7205505B2 (ja) | 配電部材 | |
JP6259907B2 (ja) | アキシャルギャップ型回転電機のステータコイル、ステータ及びそれを用いた回転電機 | |
JP2022190332A (ja) | ステータおよびモータ | |
JP2019118183A (ja) | 導電端子、導電端子の製造装置、及び導電端子を備えた回転電機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22791441 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280011743.1 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18555778 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022791441 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022791441 Country of ref document: EP Effective date: 20231121 |