WO2019102643A1 - Unité de barre omnibus et moteur - Google Patents

Unité de barre omnibus et moteur Download PDF

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Publication number
WO2019102643A1
WO2019102643A1 PCT/JP2018/026058 JP2018026058W WO2019102643A1 WO 2019102643 A1 WO2019102643 A1 WO 2019102643A1 JP 2018026058 W JP2018026058 W JP 2018026058W WO 2019102643 A1 WO2019102643 A1 WO 2019102643A1
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WO
WIPO (PCT)
Prior art keywords
bus bar
external connection
holder
axial direction
hole
Prior art date
Application number
PCT/JP2018/026058
Other languages
English (en)
Japanese (ja)
Inventor
雄策 吉田
梅田　智之
藤原　英雄
Original Assignee
日本電産株式会社
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 日本電産株式会社 filed Critical 日本電産株式会社
Priority to JP2019556093A priority Critical patent/JP7120251B2/ja
Priority to CN201880076309.5A priority patent/CN111386647B/zh
Publication of WO2019102643A1 publication Critical patent/WO2019102643A1/fr

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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
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

Definitions

  • the present invention relates to a bus bar unit and a motor.
  • Patent Document 1 discloses a bus bar unit conventionally known.
  • the bus bar unit includes a plurality of bus bars. Further, the bus bar has a terminal (external connection terminal) connected to an external device and a connection portion (coil wire connection portion) connected to a coil wire drawn from the stator.
  • the external connection terminal is required to be able to suppress the variation in size in order to stabilize the electrical connection with the control device.
  • the conventional external connection terminal is provided at one end of the elongated bus bar, it is difficult to suppress dimensional variation.
  • An object of one embodiment of the present invention is to provide a bus bar unit capable of suppressing dimensional deviation of external connection terminals by separately forming the external connection terminals and the bus bars.
  • a bus bar unit is a bus bar unit provided in a motor, and extends along an axial direction with a plurality of bus bars located on the upper side of a stator annularly arranged around a central axis extending in the vertical direction. And an external connection terminal.
  • the bus bar is provided with an insertion hole penetrating in the axial direction. The external connection terminal is inserted into the insertion hole.
  • a bus bar unit capable of suppressing dimensional deviation of the external connection terminals is provided.
  • FIG. 1 is a schematic cross-sectional view of a motor according to an embodiment.
  • FIG. 2 is an exploded view of the phase bus bar unit (bus bar unit) according to one embodiment.
  • FIG. 3 is a plan view of the phase bus bar (bus bar) and the bus bar holder of one embodiment.
  • FIG. 4 is a schematic view illustrating the positioning structure of the bus bar holder with respect to the bearing holder in the motor of one embodiment.
  • FIG. 5 is an enlarged view of the region V of FIG.
  • FIG. 6 is an enlarged view of area VI of FIG.
  • FIG. 7 is a partial cross-sectional view of the bus bar holder, the terminal receiving member, and the cover member in the phase bus bar unit of one embodiment.
  • FIG. 8 is a partial cross-sectional view of a bus bar holder, a terminal receiving member, and a cover member in which the fixing structure of Modification 1 is adopted.
  • FIG. 9 is a partial cross-sectional view of a bus bar holder, a terminal receiving member, and a cover member in which the fixing structure of Modification 2 is adopted.
  • FIG. 10 is a partial cross-sectional view of the terminal receiving member of the third modification.
  • FIG. 11 is a schematic view for explaining a modification 4 of the positioning structure of the bus bar holder with respect to the bearing holder.
  • FIG. 12 is a schematic view for explaining a fifth modification of the positioning structure of the bus bar holder with respect to the bearing holder.
  • the Z axis is shown as appropriate.
  • the Z-axis direction in each drawing is a direction parallel to the central axis J shown in FIG.
  • the positive side (+ Z side) in the Z-axis direction is referred to as "upper side”
  • the negative side (-Z side) in the Z-axis direction is referred to as "lower side”.
  • the upper and lower sides are directions used merely for the purpose of explanation, and do not limit the actual positional relationship or direction.
  • a direction (Z-axis direction) parallel to the central axis J is simply referred to as “axial direction” or “vertical direction”, and a radial direction centered on the central axis J is simply referred to as “radial direction”.
  • the circumferential direction around the central axis J that is, around the axis of the central axis J, is simply referred to as “circumferential direction”.
  • plane view means a state viewed from the axial direction.
  • FIG. 1 is a schematic cross-sectional view of a motor 1.
  • a control device (external device) 9 is connected to the motor 1.
  • the control device 9 supplies power to the motor 1 via the control terminal 9 a and controls the rotation of the motor 1.
  • the motor 1 includes a rotor 3, a stator 4, a housing 2, a bearing holder 5, an upper bearing 6 A, a lower bearing 6 B, a neutral point bus bar unit 10, and a phase bus bar unit (bus bar unit) 20. And.
  • the rotor 3 rotates around a central axis J extending in the vertical direction.
  • the rotor 3 has a shaft 3a, a rotor core 3b, and a rotor magnet 3c.
  • the shaft 3a is disposed along the central axis J around a central axis J extending in the vertical direction (axial direction).
  • the shaft 3a is rotatably supported around the central axis J by the upper bearing 6A and the lower bearing 6B.
  • the rotor core 3b is fixed to the outer peripheral surface of the shaft 3a.
  • the rotor magnet 3c is fixed to the outer peripheral surface of the rotor core 3b.
  • the housing 2 is in the form of a tube that opens to the upper side (+ Z side).
  • the housing 2 accommodates the rotor 3, the stator 4 and the bearing holder 5.
  • the housing 2 has a cylindrical portion 2a and a bottom portion 2b.
  • the cylindrical portion 2 a surrounds the stator 4 from the outer side in the radial direction.
  • the bottom 2b is located at the lower end of the cylinder 2a.
  • a lower bearing holding portion 2c for holding the lower bearing 6B is provided at the center of the bottom portion 2b in plan view.
  • the bearing holder 5 is located above the stator 4.
  • the bearing holder 5 is located between the phase busbar unit 20 and the neutral point busbar unit 10 in the axial direction. That is, the bearing holder 5 is located between the phase busbar unit 20 and the stator 4 in the axial direction.
  • the bearing holder 5 is made of metal.
  • the bearing holder 5 is held on the inner peripheral surface of the housing 2.
  • the bearing holder 5 holds the upper bearing 6A.
  • the bearing holder 5 has an upper bearing holding portion 5a.
  • the upper bearing holder 5a holds the upper bearing 6A.
  • the upper bearing holder 5 a is located at the center of the bearing holder 5 in plan view.
  • the upper bearing holding portion 5a has a holding cylindrical portion 5aa extending in the axial direction centering on the central axis J, and an upper end protruding portion 5ab extending inward in the radial direction from the upper end of the holding cylindrical portion 5aa.
  • the upper end protruding portion 5ab positions the upper bearing 6A in the vertical direction.
  • a hole 5c penetrating in the axial direction is provided at the center of the upper end protrusion 5ab in a plan view. The hole 5c allows the shaft 3a to pass therethrough.
  • the bearing holder 5 is provided with a coil wire passage hole 5d and a positioning hole 5e penetrating in the vertical direction.
  • the coil wire passage hole 5 d passes the coil wire 7 a which is pulled out of the coil 7 and connected to the phase bus bar unit 20.
  • Positioning projections 39 extending downward from the phase bus bar unit 20 are inserted into the positioning holes 5 e.
  • the stator 4 is annularly disposed around the central axis J.
  • the stator 4 radially faces the rotor 3 with a gap.
  • the stator 4 surrounds the radially outer side of the rotor 3.
  • the stator 4 is fixed to the inner circumferential surface of the housing 2.
  • the stator 4 has an annular stator core 4a, a pair of insulators 4b mounted on the stator core 4a in the vertical direction, and a coil 7 wound around the stator core 4a via the insulator 4b.
  • the plurality of coils 7 of the present embodiment constitute a three-phase circuit of a plurality of systems (two systems in the present embodiment). In each system, U-phase, V-phase and W-phase coils 7 are Y-connected.
  • the stator 4 of the present embodiment is provided with twelve coils 7. Coil wires 7a extend from the respective coils 7 respectively. Of the twelve coil wires 7 a, six coil wires 7 a are connected to the phase busbars 21 of the phase busbar unit 20. The other six coil wires 7 a are connected to the neutral point bus bar 11 of the neutral point bus bar unit 10.
  • the neutral point bus bar unit 10 is located above the stator 4.
  • the neutral point bus bar unit 10 has a neutral point bus bar holder 12 and a plurality of (two in the present embodiment) neutral point bus bars 11.
  • the neutral point bus bar holder 12 holds the neutral point bus bar 11.
  • the neutral point bus bar unit 10 is provided with a pair of neutral point bus bars 11.
  • the neutral point bus bar holder 12 extends along a plane orthogonal to the central axis J.
  • Neutral point bus bar holder 12 has legs 12 a.
  • the legs 12a extend downward along the axial direction.
  • the lower end of the leg 12a contacts the upper surface of the stator core 4a.
  • the neutral point bus bar holder 12 also has a support portion 12 b.
  • the support portion 12 b extends upward along the axial direction.
  • the support portion 12 b surrounds the coil wire 7 a and suppresses the contact of the coil wire 7 a with the coil wire passage hole 5 d of the bearing holder 5.
  • the neutral point bus bars 11 each have three coil wire connection parts 11 a.
  • the neutral point bus bar 11 is connected to the coil wire 7 a at the coil wire connection portion 11 a.
  • the neutral point bus bar 11 connects the coil wires 7 a extending from different coils 7 to form a neutral point of the three-phase circuit.
  • phase busbar unit 20 is located on the upper side of the bearing holder 5.
  • the phase bus bar unit 20 is provided to intervene between and electrically connect the coil wire 7 a drawn to the upper side of the bearing holder 5 and the control device 9.
  • FIG. 2 is an exploded view of phase busbar unit 20.
  • a plurality of (six in the present embodiment) phase bus bars (bus bars) 21, a plurality of (six in the present embodiment) external connection terminals 27, a bus bar holder 30, and a pair of covers A member 41 and a pair of terminal receiving members 45 are provided.
  • the phase bus bar 21, the external connection terminal 27, the bus bar holder 30, the cover member 41 and the terminal receiving member 45 are located on the upper side of the stator 4.
  • FIG. 3 is a plan view of phase bus bar 21 and bus bar holder 30.
  • the phase bus bar 21 has a bus bar main body portion 22, a terminal connection portion 23, and a coil wire connection portion 24.
  • the phase bus bar 21 has a plate shape and is formed by press processing.
  • the phase bus bar 21 is processed so that the axial direction is in the plate thickness direction in the bus bar main body portion 22 and the terminal connection portion 23.
  • the phase bus bar 21 is processed so that the direction orthogonal to the axial direction in the coil wire connection portion 24 is the thickness direction.
  • Phase bus bar 21 is embedded in bus bar holder 30 at bus bar main body portion 22 and terminal connection portion 23. That is, the bus bar holder 30 is manufactured by insert molding in which the phase bus bar 21 is embedded.
  • the bus bar main body portion 22 linearly extends along a plane orthogonal to the axial direction.
  • the terminal connection portion 23 is connected to one end of the bus bar main body portion 22.
  • the coil wire connection portion 24 is connected to the other end of the bus bar main body portion 22.
  • the coil wire connection portion 24 is connected to the coil wire 7a.
  • the coil wire connection portion 24 grips the coil wire 7a.
  • the planar view shape of the coil wire connection part 24 is a substantially U shape opened to the radial direction outer side.
  • the terminal connection portion 23 holds the external connection terminal 27.
  • the terminal connection portion 23 is provided with an insertion hole 23 a penetrating in the axial direction.
  • the external connection terminal 27 is press-fit into the insertion hole 23a from the lower side. Thereby, phase bus bar 21 and external connection terminal 27 are mechanically and electrically connected.
  • the terminal connection portion 23 may be connected to the bus bar main body portion 22 by laser welding. In this case, welding marks by laser welding remain at the boundary between the terminal connection portion 23 and the bus bar main body portion 22.
  • the terminal connection portion 23 is formed separately from the bus bar main body portion 22, the terminal connection portion 23 can be press-formed with a common mold in the plurality of phase bus bars 21. As a result, dimensional variation of the terminal connection portion 23 can be suppressed, and stability of connection between the terminal connection portion 23 and the external connection terminal 27 can be enhanced.
  • Phase bus bar 21 may have a crank portion located between terminal connection portion 23 and bus bar main body portion 22.
  • the crank portion is bent and shaped in a crank shape so as to make the axial positions of the terminal connection portion 23 and the bus bar main body portion 22 different.
  • phase bus bars 21 are classified into a first bus bar group 28 and a second bus bar group 29.
  • Each of the first bus bar group 28 and the second bus bar group 29 includes a plurality of (three in the present embodiment) phase bus bars 21.
  • Phase bus bars 21 belonging to first bus bar group 28 and second bus bar group 29 are connected to coils 7 of different systems.
  • Three coils connected to the three phase bus bars 21 of the first bus bar group 28 constitute a three-phase circuit of one system, and three coils connected to the three phase bus bars 21 of the second bus bar group 29 The coil constitutes a three-phase circuit of another system.
  • First bus bar group 28 and second bus bar group 29 each include a U-phase bus bar, a V-phase bus bar, and a W-phase bus bar. That is, the three phase bus bars 21 of the first bus bar group 28 and the second bus bar group 29 are connected to the U-phase, V-phase, and W-phase coils 7, respectively.
  • phase bus bars 21 of the first bus bar group 28 and the phase bus bars 21 of the second bus bar group 29 are point-symmetrical about the central axis J. Further, in the first bus bar group 28 and the second bus bar group 29, the in-phase phase bus bars 21 have the same shape. Therefore, in the phase bus bar unit 20, the number of parts can be reduced.
  • the bus bar holder 30 is made of a resin material.
  • the bus bar holder 30 is provided on the upper side (one side in the axial direction) of the stator.
  • the bus bar holder 30 supports the phase bus bar 21.
  • the bus bar holder 30 has a holder main body portion 31, a cylindrical portion 33, a plurality of ribs 32, and a positioning convex portion 39.
  • the holder body 31 extends along a plane orthogonal to the central axis J.
  • the holder main body portion 31 has an upper surface 31a facing the upper side (one side in the axial direction) and a lower surface 31b facing the lower side (the other side in the axial direction) (see FIG. 2).
  • the bus bar main body portion 22 and the terminal connection portion 23 of the phase bus bar 21 are embedded. Thereby, the holder main body 31 holds the phase bus bar 21.
  • the holder main body 31 is provided with a central hole 35 centered on the central axis J.
  • the central hole 35 penetrates in the axial direction.
  • the central hole 35 is circular as viewed in the axial direction.
  • the central hole 35 allows the shaft 3a to pass through inward.
  • the holder main body portion 31 is divided into a central region 31A, a pair of main body portion embedded regions 31B, and a pair of connection portion embedded regions 31C.
  • the central region 31A surrounds the central hole 35 from the radially outer side. In other words, central hole 35 is located in central region 31A.
  • the bus bar main portions 22 of the phase bus bar 21 are embedded in the pair of main body embedded regions 31B.
  • the pair of main body portion embedded regions 31B is located radially outward of the central region 31A.
  • the pair of body portion embedded regions 31B are disposed on the opposite side in the radial direction with respect to the central region 31A as viewed from the axial direction.
  • the three phase bus bars 21 belonging to the first bus bar group 28 are embedded in one of the pair of main body part embedding regions 31B, and the three phase bus bars 21 belonging to the second bus bar group 29 are embedded in the other. . Therefore, the first bus bar group 28 and the second bus bar group 29 are disposed on the opposite side in the radial direction with respect to the central hole 35 as viewed from the axial direction.
  • the terminal connection portions 23 of the phase bus bar 21 are embedded in the pair of connection portion embedded regions 31C.
  • One of the pair of connection portion embedding regions 31C is located radially outside the one main body portion embedding region 31B, and the three terminal connection portions 23 of the first bus bar group 28 are embedded.
  • the other of the pair of connection portion embedding regions 31C is located radially outside of the other main body portion embedding region 31B, and the three terminal connection portions 23 of the second bus bar group 29 are embedded.
  • the connection portion embedded region 31C is provided with an opening 38 which exposes the insertion hole 23a of the terminal connection portion 23 and the vicinity thereof in the vertical direction.
  • the cylindrical portion 33 extends in the axial direction from the peripheral edge of the central hole 35.
  • the cylindrical portion 33 extends downward. That is, the cylindrical portion 33 protrudes downward from the lower surface 31 b of the holder main body 31.
  • the outer peripheral surface of the cylindrical portion 33 is circular as viewed from the axial direction. Further, the inner peripheral surface of the cylindrical portion 33 coincides with the inner peripheral surface of the central hole 35 as viewed in the axial direction.
  • the outer peripheral surface of the cylindrical portion 33 is fitted into the hole 5 c provided in the bearing holder 5. Thereby, the phase bus bar unit 20 is positioned in the radial direction.
  • the rib 32 is provided on the lower surface (one surface facing the axial direction) 31 b of the holder main body 31. Therefore, the rib 32 protrudes downward from the lower surface 31 b of the holder main body 31. As shown in FIG. 3, the plurality of ribs 32 radially extend radially outward from the cylindrical portion 33.
  • the positioning protrusion 39 is provided on the lower surface (one surface facing the axial direction) 31 b of the holder main body 31.
  • the positioning convex portion 39 protrudes from the lower surface 31 b of the holder main body 31 to the lower side (the stator 4 side).
  • the positioning protrusion 39 is fitted into the positioning hole 5 e of the bearing holder 5.
  • the bus bar holder 30 is positioned in the circumferential direction.
  • FIG. 4 is a schematic view illustrating the positioning structure of the bus bar holder 30 relative to the bearing holder 5 more specifically.
  • the illustration of the coil wire passage hole 5 d provided in the bearing holder 5 is omitted.
  • the cylindrical portion 33 of the bus bar holder 30 is fitted in the hole 5 c provided at the center of the bearing holder 5.
  • the bus bar holder 30 is positioned in the radial direction with respect to the bearing holder 5.
  • the bearing holder 5 is provided with a pair of positioning holes 5 e.
  • the positioning hole 5 e penetrates in the vertical direction.
  • the positioning hole 5e is a hole that opens to the upper side, it does not have to open to the lower side.
  • the pair of positioning holes 5e are disposed at symmetrical positions with respect to the central axis J. That is, the pair of positioning hole portions 5e are arranged at equal intervals along the circumferential direction. Positioning convex part 39 fits into one of a pair of positioning hole parts 5e.
  • the positioning convex portion 39 of the bus bar holder 30 may be inserted into any of the pair of positioning holes 5 e.
  • the bus bar holder 30 can be assembled by rotating it 180 degrees with respect to the bearing holder 5.
  • the pair of positioning holes 5e may be elongated holes extending in the radial direction. In this case, the elongated hole contacts the positioning protrusion 39 at the side surface on one side in the circumferential direction and the side surface on the other side.
  • the external connection terminal 27 extends along the axial direction.
  • the external connection terminal 27 is formed by punching a plate material in the plate thickness direction.
  • the external connection terminal 27 is inserted into an insertion hole 23 a provided in the terminal connection portion 23 of the phase bus bar 21.
  • the external connection terminal 27 of the present embodiment is provided with a slit 27 a extending downward from the upper end.
  • the control terminal 9a of the control device 9 is inserted into the slit 27a.
  • the control device 9 is connected to the motor 1 through the external connection terminal 27.
  • the external connection terminal 27 and the phase bus bar 21 are configured as separate members. For this reason, even when the phase bus bar 21 has a complicated shape, the yield can be increased by increasing the number of pieces taken from the plate material.
  • the external connection terminal 27 and the phase bus bar 21 are formed as separate members, materials suitable for the respective applications can be used.
  • the material characteristics required for the external connection terminal 27 and the phase bus bar 21 are different from each other.
  • the external connection terminal 27 is preferably made of a highly rigid material that is hard to buckle because it receives stress directed in the axial direction from the control device 9 when connecting to the control device 9.
  • the phase bus bar 21 has a complicated shape, it is preferable to be made of a low-rigidity material so that the punching stress and the bending stress by the press become small.
  • the external connection terminals 27 and the phase bus bars 21 are formed as separate members, the phase bus bar unit 20 can be manufactured inexpensively as a whole while satisfying the material characteristics required for each part.
  • the plate thicknesses of the external connection terminals 27 and the phase bus bars 21 can be made different from each other.
  • the external connection terminal 27 preferably has a large plate thickness in order to suppress buckling.
  • the external connection terminal 27 and the phase bus bar 21 are formed as separate members, the rigidity required of the external connection terminal 27 and the phase bus bar 21 is taken into consideration.
  • the thickness of the external connection terminal 27 and the phase bus bar 21 can be set individually. Therefore, the external connection 27 and the bus bar 21 for phase can be manufactured at low cost as compared with the case of processing from a single plate material.
  • the external connection terminals 27 and the phase bus bar 21 are configured as separate members, the plurality of external connection terminals 27 can be manufactured with the same mold. For this reason, the dimensional variation of the external connection terminal 27 can be stabilized.
  • the external connection terminal 27 is electrically connected to the control device 9 by inserting the control terminal 9 a of the control device 9 into the slit 27 a. By stabilizing the dimensional dispersion of the external connection terminal 27, the stability of the electrical connection between the external connection terminal 27 and the control device 9 can be enhanced.
  • the external connection terminal 27 is inserted into the insertion hole 23 a of the phase bus bar 21. Therefore, the process of assembling the external connection terminals 27 to the phase bus bar 21 can be simplified. Further, according to the present embodiment, the external connection terminal 27 is press-fit into the insertion hole 23a. Therefore, the external connection terminal 27 and the phase bus bar 21 can be electrically connected only by the press-fitting process, and the manufacturing process can be simplified. Alternatively, after the external connection terminal 27 is inserted into the insertion hole 23a, welding such as laser welding may be performed to join the external connection terminal 27 and the phase bus bar 21.
  • FIG. 5 is an enlarged view of the region V of FIG.
  • the external connection terminal 27 inserted into the insertion hole 23a is illustrated by an imaginary line (two-dot chain line).
  • the external connection terminal 27 has a pair of first surfaces 27c facing in the thickness direction and a pair of second surfaces 27d facing in the width direction.
  • the surface directions of the first surface 27c and the second surface 27d are orthogonal to each other.
  • the external connection terminal 27 contacts the inner peripheral surface of the insertion hole 23a at the second surface 27d. On the other hand, a gap is provided between the first surface 27c of the external connection terminal 27 and the inner peripheral surface of the insertion hole 23a.
  • the external connection terminals 27 are formed by punching a plate material in the plate thickness direction, it is easy to improve the dimensional accuracy in the plate width direction, but it is difficult to manage the dimensional accuracy in the plate thickness direction. That is, the external connection terminal 27 can easily improve the accuracy of the distance dimension between the pair of second surfaces 27d, and can not easily improve the accuracy of the distance dimension between the pair of first surfaces 27c.
  • the second surface 27d which is relatively easy to manage dimensions, contacts the inner peripheral surface of the insertion hole 23a, so that the holding force of the external connection terminal 27 after press-fitting can be stabilized.
  • the first surface 27c whose dimension management is relatively difficult is disposed apart from the inner peripheral surface of the insertion hole 23a, the dimension of the first surface 27c is unlikely to affect the pressure input. For this reason, press fitting of the external connection terminal 27 into the insertion hole 23a can be stably performed.
  • the pair of first surfaces 27c are both disposed apart from the insertion hole 23a. However, a gap may be provided between at least one of the pair of first surfaces 27c and the insertion hole 23a.
  • the terminal receiving member 45 is in the form of a plate extending along a plane orthogonal to the axial direction.
  • the terminal receiving member 45 is fixed to the lower surface 31 b of the holder main body 31. That is, the terminal receiving member 45 is located below the bus bar holder 30 and fixed to the bus bar holder 30.
  • the terminal receiving member 45 is located below the connection portion embedded region 31C of the holder body 31.
  • the terminal receiving member 45 has a backup surface 45 a which is a surface facing upward.
  • the backup surface 45 a contacts the lower end portion of the external connection terminal 27.
  • the external connection terminal 27 receives stress downward from the control terminal 9 a of the control device 9 when connected to the control device 9.
  • the terminal receiving member 45 supports the external connection terminal 27 from the lower side on the backup surface 45 a, and suppresses the detachment of the external connection terminal 27 from the insertion hole 23 a of the phase bus bar 21.
  • the backup surface 45a is provided with a plurality of reinforcing ribs 45b.
  • the reinforcing rib 45 b is disposed so as to avoid an area in contact with the lower end portion of the external connection terminal 27 in the backup surface 45 a.
  • the reinforcing rib 45 b is provided to reinforce the terminal receiving member 45 and to enhance its rigidity.
  • the terminal receiving member 45 is rotationally symmetrical when viewed from the axial direction. Therefore, even when the terminal receiving member 45 is rotated by 180 ° as viewed from the axial direction, the terminal receiving member 45 can be assembled to the bus bar holder 30. That is, according to the present embodiment, the handling of the terminal receiving member 45 at the time of assembly of the phase busbar unit 20 can be facilitated, and the assembly process can be simplified.
  • the cover member 41 is fixed to the upper surface 31 a of the holder main body 31. That is, the cover member 41 is located on the upper side of the bus bar holder 30 and fixed to the bus bar holder 30.
  • the pair of cover members 41 is located on the upper side of the connection portion embedding area 31 ⁇ / b> C of the holder main body 31.
  • the cover member 41 has three rectangular tube portions 41 a.
  • a terminal passage hole 41b penetrating in the axial direction is provided on the inner side of each rectangular tube portion 41a.
  • the terminal passage hole 41 b surrounds the external connection terminal 27. Thereby, the rectangular tube portion 41 a protects the external connection terminal 27.
  • FIG. 6 is an enlarged view of area VI of FIG.
  • FIG. 7 is a partial cross-sectional view of the bus bar holder 30, the terminal receiving member 45 and the cover member 41.
  • the bus bar holder 30 has a first convex portion 51 projecting downward and a second convex portion 52 projecting upward.
  • the first convex portion 51 is provided on the lower surface 31 b of the holder main body 31.
  • the second convex portion 52 is provided on the upper surface 31 a of the holder main body 31.
  • the first convex portion 51 and the second convex portion 52 overlap when viewed from the axial direction.
  • the first convex portion 51 includes a columnar portion 51 a and a plurality of (four in the present embodiment) ribs (crush ribs) 51 c.
  • the columnar portion 51 a extends in a columnar shape along the vertical direction.
  • the rib 51c protrudes outward in the radial direction of the columnar portion 51a from the outer peripheral surface of the columnar portion 51a. Further, the rib 51c extends in a stripe shape in the vertical direction from the lower end to the upper end of the columnar portion 51a.
  • the rib 51 c is in the shape of a vertically elongated prism.
  • the plurality of ribs 51c are arranged at equal intervals along the circumferential direction of the columnar portion 51a.
  • the second convex portion 52 has substantially the same shape as the first convex portion 51. That is, the second convex portion 52 includes a columnar portion 52 a and a plurality of (four in the present embodiment) ribs (crush ribs) 52 c. In the second convex portion 52, the columnar portion 52a and the rib 52c have the same configuration as that of the first convex portion 51.
  • the terminal receiving member 45 is provided with a first concave portion 56 into which the first convex portion 51 is inserted.
  • the first recess 56 is recessed downward on the upper surface of the terminal receiving member 45.
  • the opening of the first recess 56 is provided with a step 56 a that increases the diameter of the first recess 56. That is, the diameter of the first concave portion 56 becomes larger on the upper side of the stepped portion 56a.
  • the stepped portion 56 a has a tapered shape in which the diameter increases toward the opening end of the first recess 56.
  • the first convex portion 51 is press-fit into the first concave portion 56.
  • the outer shape shown by a two-dot chain line is the outer shape of the rib 51 c of the first convex portion 51 before being press-fitted into the first concave portion 56.
  • each rib 51c is in a state of being plastically and elastically deformed toward the inner side in the radial direction of the columnar portion 51a. Therefore, a force is applied to the rib 51 c in the direction from the inner peripheral surface of the first recess 56 toward the columnar portion 51 a. Therefore, the terminal receiving member 45 can be firmly fixed to the bus bar holder 30. Further, since the terminal receiving member 45 can be assembled to the bus bar holder 30 only by the press-fitting process, the assembling process of the phase bus bar unit 20 can be simplified.
  • the rib (crash rib) 51 c is provided on the outer peripheral surface of the first convex portion 51 .
  • the crush rib may be provided on the inner circumferential surface of the first recess 56. That is, a crush rib extending along the axial direction may be provided on the outer peripheral surface of the first projection 51 or the inner peripheral surface of the first recess 56.
  • the first convex portion 51 is provided in the bus bar holder 30 and the first concave portion 56 is provided in the terminal receiving member 45 has been described.
  • the first projection 51 may be provided on the terminal receiving member 45, and the first recess 56 may be provided on the bus bar holder 30. That is, the first convex portion 51 may be provided on either one of the terminal receiving member 45 and the bus bar holder 30, and the first concave portion 56 may be provided on the other.
  • the terminal receiving member 45 is lifted from the bus bar holder 30.
  • the step portion 56a is provided at the opening of the first recess 56, a part of the scraped rib 51c is accommodated above the step portion 56a. Therefore, according to the present embodiment, it is possible to suppress the lifting of the terminal receiving member 45 with respect to the bus bar holder 30. In addition, it is possible to suppress scattering of a part of the scraped ribs 51 c inside the motor 1.
  • the cover member 41 is provided with a second concave portion 57 into which the second convex portion 52 is inserted.
  • the second recess 57 has substantially the same shape as the first recess 56.
  • the second recess 57 is recessed toward the upper side on the lower surface of the cover member 41.
  • the opening of the second recess 57 is provided with a step 57 a that increases the diameter of the second recess 57.
  • the step portion 57 a has a tapered shape in which the diameter increases toward the opening end of the second recess 57.
  • the second convex portion 52 is press-fit into the second concave portion 57.
  • each rib 52c is in a state of being plastically deformed and elastically deformed inward in the radial direction of the columnar portion 52a. Therefore, the cover member 41 can be firmly fixed to the bus bar holder 30. Moreover, since the cover member 41 can be assembled to the bus bar holder 30 only by the press-fitting process, the assembly process of the phase bus bar unit 20 can be simplified.
  • the rib (crash rib) 52 c is provided on the outer peripheral surface of the second convex portion 52 .
  • the crush rib may be provided on the inner circumferential surface of the second recess 57. That is, a crush rib extending along the axial direction may be provided on the outer peripheral surface of the second protrusion 52 or the inner peripheral surface of the second recess 57.
  • the second convex portion 52 is provided in the bus bar holder 30 and the second concave portion 57 is provided in the cover member 41 has been described.
  • the second convex portion 52 may be provided on one of the cover member 41 and the bus bar holder 30, and the second concave portion 57 may be provided on the other.
  • the step of press-fitting the first convex portion 51 into the first concave portion 56 and the second convex portion 52 can be performed simultaneously.
  • the process of assembling the phase busbar unit 20 can be further simplified.
  • the cover member 41 can be prevented from floating relative to the bus bar holder 30. Moreover, it can suppress that a part of rib 52 c scraped off scatters to the inside of the motor 1.
  • FIG. 8 is a partial cross-sectional view of the bus bar holder 130, the terminal receiving member 145, and the cover member 141 adopting the fixing structure of the first modification.
  • the description is abbreviate
  • the terminal receiving member 145 is provided with a first convex portion 151 projecting upward.
  • a rib (crush rib) 151 c is provided on the outer peripheral surface of the first convex portion 151.
  • the bus bar holder 130 is provided with a fixing hole (first recess) 156 into which the first protrusion 151 is inserted.
  • the fixing hole 156 penetrates the bus bar holder 130 along the axial direction.
  • a step portion 156a is provided which increases the diameter of the fixing hole 156 at the opening end.
  • the first convex portion 151 is press-fit into the fixing hole 156.
  • the rib 151 c is deformed, and the terminal receiving member 145 can be firmly fixed to the bus bar holder 130.
  • a part of the rib 151 c scraped by the press-fitting of the first convex portion 151 is accommodated below the step portion 156 a of the fixing hole 156. Therefore, it is possible to suppress that the rib 151 c affects the assembly of the terminal receiving member 145 and the bus bar holder 130.
  • the bus bar holder 130 is provided with a second convex portion 152 projecting upward.
  • a rib (crush rib) 152 c is provided on the outer peripheral surface of the second convex portion 152.
  • the second convex portion 152 overlaps the first convex portion 151 as viewed in the axial direction.
  • the cover member 141 is provided with a second concave portion 157 into which the second convex portion 152 is inserted.
  • the second recess 157 is recessed upward from the lower surface of the cover member 141.
  • the opening at the lower end of the second recess 157 is provided with a step portion 157 a that increases the diameter of the second recess 157 at the opening end.
  • the second convex portion 152 is press-fit into the second concave portion 157. Thereby, the rib 152 c is deformed, and the cover member 141 can be fixed firmly to the bus bar holder 130. In addition, a part of the rib 152 c scraped by the press-fitting of the second protrusion 152 is accommodated below the step portion 157 a of the second recess 157. For this reason, it is possible to suppress that the rib 152 c affects the assembly of the cover member 141 and the bus bar holder 130.
  • a rib (crash rib) is provided on the outer peripheral surface of the protrusion in the relationship between the first protrusion 151 and the fixing hole 156 and the relationship between the second protrusion 152 and the second recess 157.
  • the crush rib may be provided on the inner circumferential surface of the recess.
  • FIG. 9 is a partial cross-sectional view of the bus bar holder 230, the terminal receiving member 245, and the cover member 241 adopting the fixing structure of the second modification.
  • the description is abbreviate
  • the terminal receiving member 245 is provided with a convex portion 253 projecting upward.
  • the convex portion 253 has a large diameter portion 254 and a small diameter portion 255.
  • the large diameter portion 254 and the small diameter portion 255 are aligned along the axial direction.
  • the large diameter portion 254 has a convex portion 253 Located in the area on the root side of The small diameter portion 255 is located at the tip of the large diameter portion 254.
  • the small diameter portion 255 is smaller in diameter than the large diameter portion 254. That is, the convex portion 253 is a stepped projection having a thick root side and a thin distal end side.
  • a rib (crush rib) 254 c is provided on the outer peripheral surface of the large diameter portion 254.
  • a rib (crash rib) 255 c is provided on the outer peripheral surface of the small diameter portion 255.
  • the bus bar holder 230 is provided with a through hole 258 which penetrates in the axial direction and into which the large diameter portion 254 is inserted.
  • the opening at the lower end of the through hole 258 is provided with a step portion 258 a that increases the diameter of the through hole 258 at the open end.
  • the cover member 241 is provided with a recess 259 into which the small diameter portion 255 is inserted.
  • the recess 259 is recessed upward from the lower surface of the cover member 241.
  • the opening at the lower end of the recess 259 is provided with a step 259 a that increases the diameter of the recess 259 at the opening end.
  • the protrusion 253 is press-fit into the recess 259 at the small diameter portion 255 and is press-fit into the through hole 258 at the large diameter portion 254.
  • the ribs 254 c and 255 c are deformed, and the terminal receiving member 245 and the cover member 241 can be firmly fixed to the bus bar holder 230.
  • a part of the ribs 254c and 255c scraped by the press-fitting is accommodated below the step portions 258a and 259a, respectively. Therefore, it is possible to suppress that a part of the ribs 254 c and 255 c scraped by the press-in affect the assembly of the terminal receiving member 245 and the cover member 241 with respect to the bus bar holder 230.
  • crush ribs are provided on the outer peripheral surface of the large diameter portion 254 and the small diameter portion 255.
  • the crush rib may be provided on the outer peripheral surface of the large diameter portion 254 or the inner peripheral surface of the through hole 258.
  • a crush rib may be provided on the outer peripheral surface of the small diameter portion 255 or the inner peripheral surface of the recess 259.
  • the convex portion 253 is provided on the terminal receiving member 245 and the concave portion 259 is provided on the cover member 241 has been described.
  • the protrusion 253 may be provided on one of the terminal receiving member 245 and the cover member 241, and the recess 259 may be provided on the other.
  • FIG. 10 is a partial cross-sectional view of the terminal receiving member 345 of the third modification.
  • three external connection terminals 27 supported by the terminal receiving member 345 are shown by a two-dot chain line.
  • the description is abbreviate
  • the three external connection terminals 27 are arranged side by side as viewed from the axial direction.
  • a pair of external connection terminals 27 disposed at both ends of the three external connection terminals 27 when viewed from the axial direction is taken as a first external connection terminal 27A.
  • one external connection terminal 27 disposed between the first external connection terminals 27A is taken as a second external connection terminal 27B.
  • the second external connection terminals 27B are arranged to be deviated in a direction orthogonal to the virtual straight line VL with respect to the virtual straight line VL connecting the pair of first external connection terminals 27A.
  • the terminal receiving member 345 supports the pair of first external connection terminals 27A and one second external connection terminal 27B from the lower side.
  • the terminal receiving member 345 has a rotationally symmetrical shape when viewed from the axial direction.
  • the terminal receiving member 345 has an upper surface 345a facing upward.
  • the upper surface 345 a is provided with a recess 346.
  • the recess 346 is recessed downward in the upper surface 345a.
  • the recess 346 has a bottom surface 347 facing upward.
  • the bottom surface 347 extends along a plane orthogonal to the axial direction.
  • the recessed portion 346 is provided on the upper surface 345 a of the terminal receiving member 345, whereby the terminal receiving member 345 is provided with a thick portion so as to surround the recessed portion 346.
  • the rigidity of the terminal receiving member 345 can be enhanced.
  • the bottom surface 347 of the recess 346 extends along the virtual straight line VL with the virtual straight line VL as the longitudinal direction.
  • the bottom surface 347 of the recess 346 has a left-right symmetric shape with reference to the virtual straight line VL when viewed from the axial direction.
  • the bottom surface 347 has a pair of end regions 347a and one intermediate region 347b.
  • the pair of end regions 347a and one intermediate region 347b are continuous planes.
  • the middle region 347b is located between the pair of end regions 347a.
  • One end region 347a, the middle region 347b, and the other end region 347a are arranged in this order along the imaginary straight line VL.
  • the middle region 347b is wider than the pair of end regions 347a. More specifically, the width dimension of the intermediate region 347b in the direction orthogonal to the virtual straight line VL is larger than the width dimension of the pair of both end regions 347a in the direction orthogonal to the virtual straight line VL.
  • the width direction of the bottom surface 347 means a direction orthogonal to the imaginary straight line VL.
  • the bottom surface 347 contacts the lower end of the first external connection terminal 27A in the pair of both end areas 347a.
  • the bottom surface 347 is in contact with the lower end of the second external connection terminal 27B in the middle region 347b.
  • the lower end of the second external connection terminal 27B is disposed on one side in the width direction of the bottom surface 347 in the middle region 347b.
  • the second region 347b can be rotated in the intermediate region 347b even when the terminal receiving member 345 is rotated by 180 ° as viewed from the axial direction.
  • the lower end of the external connection terminal 27B can be stably brought into contact. That is, according to the present embodiment, the handling of the terminal receiving member 345 at the time of assembly of the phase busbar unit 20 can be facilitated, and the assembly process can be simplified.
  • Modification 4 of the positioning structure of the bus bar holder 430 adoptable to the above-described embodiment will be described based on FIG.
  • the cylindrical portion 33 of the bus bar holder 430 is fitted in the hole 5 c provided at the center of the bearing holder 405. Accordingly, the bus bar holder 430 is positioned in the radial direction with respect to the bearing holder 405.
  • the bearing holder 405 of this modification is provided with a positioning hole 405 e and a retraction hole 405 f.
  • the positioning hole 405 e and the retraction hole 405 f are circular when viewed from the axial direction. Further, the diameter of the retraction hole 405 f is larger than the diameter of the positioning hole 405 e.
  • the positioning hole 405 e and the retraction hole 405 f penetrate in the vertical direction. However, as long as the positioning hole 405 e and the retraction hole 405 f are holes that open upward, they do not have to open downward.
  • the positioning hole portion 405 e and the retraction hole portion 405 f are disposed at symmetrical positions with respect to the central axis J. That is, the positioning holes 405 e and the evacuation holes 405 f are arranged at equal intervals along the circumferential direction.
  • the bus bar holder 430 of this modification has a pair of positioning convex portions 439.
  • the pair of positioning projections 439 project downward from the bus bar holder 430 (on the side of the stator 4).
  • the pair of positioning protrusions 439 has a cylindrical shape. Further, the pair of positioning protrusions 439 have the same shape.
  • the pair of positioning protrusions 439 are disposed at symmetrical positions with respect to the central axis J.
  • One of the pair of positioning projections 439 fits into the positioning hole 405 e.
  • the bus bar holder 430 is positioned in the circumferential direction with respect to the bearing holder 405.
  • the other of the pair of positioning convex portions 439 is inserted into the retraction hole portion 405 f.
  • a clearance is provided between the positioning projection 439 inserted into the retraction hole 405 f and the inner peripheral surface of the retraction hole 405 f. Therefore, the positioning convex portion 439 inserted into the retraction hole portion 405 f does not affect the positioning of the bus bar holder 430.
  • the bus bar holder 430 can be assembled by rotating it 180 degrees with respect to the bearing holder 405.
  • the pair of positioning holes 405 e may be elongated holes extending in the radial direction. In this case, the long hole contacts the positioning protrusion 439 on the side surface on one side in the circumferential direction and the side surface on the other side.
  • the bearing holder 505 of this modification is provided with a positioning hole 505 e and a long hole positioning hole 505 g.
  • the positioning hole 505 e is circular as viewed from the axial direction.
  • the long hole positioning hole portion 505g is in the shape of a long hole extending in the radial direction.
  • the positioning hole portion 505e and the long hole positioning hole portion 505g penetrate in the vertical direction.
  • the positioning hole 505 e and the long hole positioning hole 505 g are holes that open upward, they do not have to open downward.
  • the positioning hole portion 505 e and the elongated hole positioning hole portion 505 g are disposed at symmetrical positions with respect to the central axis J. That is, the positioning holes 505 e and the long hole positioning holes 505 g are arranged at equal intervals along the circumferential direction.
  • the bus bar holder 530 of the present modified example has a pair of positioning convex portions 539.
  • the pair of positioning projections 539 project downward from the bus bar holder 530 (on the side of the stator 4).
  • the pair of positioning protrusions 539 have a cylindrical shape. Further, the pair of positioning convex portions 539 have the same shape.
  • the pair of positioning protrusions 539 are disposed at symmetrical positions with respect to the central axis J.
  • One of the pair of positioning projections 539 fits into the positioning hole 505 e.
  • the outer peripheral surface of the positioning convex portion 539 contacts the positioning hole portion 505 e on the entire circumference.
  • the other of the pair of positioning projections 539 is fitted into the long hole positioning hole 505 g.
  • the positioning convex portion 539 contacts the side surface on one side and the side surface on the other side in the circumferential direction of the long hole positioning hole 505 g.
  • one of the pair of positioning convex portions 539 fits into the positioning hole portion 505e, and the other fits into the long hole positioning hole portion 505g.
  • the bus bar holder 530 can be positioned in the radial direction and the circumferential direction with respect to the bearing holder 505. Further, the bus bar holder 530 can be assembled by rotating it 180 degrees with respect to the bearing holder 505. As a result, the handling of the phase busbar unit 20 during assembly of the motor 1 can be facilitated, and the assembly process can be simplified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

La présente invention concerne une unité de barre omnibus fournie à un moteur qui est équipée : d'une pluralité de barres omnibus positionnées sur le côté supérieur d'un stator qui est disposé de manière annulaire autour d'un axe central s'étendant dans la direction verticale ; et d'une borne de connexion externe s'étendant dans la direction axiale. La barre omnibus est pourvue d'un trou d'insertion pénétrant dans la direction axiale. La borne de connexion externe est insérée dans le trou d'insertion.
PCT/JP2018/026058 2017-11-27 2018-07-10 Unité de barre omnibus et moteur WO2019102643A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019556093A JP7120251B2 (ja) 2017-11-27 2018-07-10 バスバーユニットおよびモータ
CN201880076309.5A CN111386647B (zh) 2017-11-27 2018-07-10 汇流条单元和马达

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-227177 2017-11-27
JP2017227177 2017-11-27

Publications (1)

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WO2019102643A1 true WO2019102643A1 (fr) 2019-05-31

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PCT/JP2018/026058 WO2019102643A1 (fr) 2017-11-27 2018-07-10 Unité de barre omnibus et moteur

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JP (1) JP7120251B2 (fr)
CN (1) CN111386647B (fr)
WO (1) WO2019102643A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020261495A1 (fr) * 2019-06-27 2020-12-30 三菱電機株式会社 Dispositif d'entraînement électrique et dispositif de direction assistée électrique
JP2021097551A (ja) * 2019-12-19 2021-06-24 株式会社ミツバ ブラシレスモータ
EP4199314A4 (fr) * 2020-08-17 2023-10-04 Mitsubishi Electric Corporation Dispositif de machine électrique tournante et dispositif de direction assistée électrique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010268569A (ja) * 2009-05-13 2010-11-25 Nippon Densan Corp モータの給電構造及びモータ
JP2012110188A (ja) * 2010-11-19 2012-06-07 Nippon Densan Corp 中間接続部材、ステータ及びモータ
JP2014197951A (ja) * 2013-03-29 2014-10-16 株式会社ミツバ バスバーユニットおよびブラシレスモータ
JP2017103849A (ja) * 2015-11-30 2017-06-08 日本精工株式会社 電動機及びこれを備えた車載用装置、端子接続構造

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001211594A (ja) * 2000-01-24 2001-08-03 Mitsubishi Electric Corp 電動機の固定子及び電動機の固定子の製造方法
JP2005229721A (ja) * 2004-02-12 2005-08-25 Mitsubishi Electric Corp 電動パワーステアリング装置用モータ
JP2009290921A (ja) * 2008-05-27 2009-12-10 Mitsuba Corp ブラシレスモータ
JP6190599B2 (ja) * 2013-03-08 2017-08-30 Ｋｙｂ株式会社 バスバーユニットの製造方法
JP5661161B1 (ja) * 2013-10-07 2015-01-28 三菱電機株式会社 回転電機
US9866080B2 (en) * 2013-12-30 2018-01-09 Samsung Electronics Co., Ltd. Compressor, motor included therein, and method for manufacturing the motor
KR102212950B1 (ko) * 2015-01-07 2021-02-05 엘지이노텍 주식회사 모터
KR102353916B1 (ko) * 2015-04-15 2022-01-21 엘지이노텍 주식회사 터미널 어셈블리 및 이를 포함하는 모터
KR102529820B1 (ko) * 2015-11-03 2023-05-08 엘지이노텍 주식회사 모터

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010268569A (ja) * 2009-05-13 2010-11-25 Nippon Densan Corp モータの給電構造及びモータ
JP2012110188A (ja) * 2010-11-19 2012-06-07 Nippon Densan Corp 中間接続部材、ステータ及びモータ
JP2014197951A (ja) * 2013-03-29 2014-10-16 株式会社ミツバ バスバーユニットおよびブラシレスモータ
JP2017103849A (ja) * 2015-11-30 2017-06-08 日本精工株式会社 電動機及びこれを備えた車載用装置、端子接続構造

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020261495A1 (fr) * 2019-06-27 2020-12-30 三菱電機株式会社 Dispositif d'entraînement électrique et dispositif de direction assistée électrique
JPWO2020261495A1 (ja) * 2019-06-27 2021-11-11 三菱電機株式会社 電動駆動装置、及び電動パワーステアリング装置
CN114008896A (zh) * 2019-06-27 2022-02-01 三菱电机株式会社 电动驱动装置以及电动助力转向装置
EP3993232A4 (fr) * 2019-06-27 2022-07-06 Mitsubishi Electric Corporation Dispositif d'entraînement électrique et dispositif de direction assistée électrique
JP7262585B2 (ja) 2019-06-27 2023-04-21 三菱電機株式会社 電動駆動装置、及び電動パワーステアリング装置
CN114008896B (zh) * 2019-06-27 2023-10-10 三菱电机株式会社 电动驱动装置以及电动助力转向装置
US12046971B2 (en) 2019-06-27 2024-07-23 Mitsubishi Electric Corporation Electric driving device and electric power steering device
JP2021097551A (ja) * 2019-12-19 2021-06-24 株式会社ミツバ ブラシレスモータ
JP7437148B2 (ja) 2019-12-19 2024-02-22 株式会社ミツバ ブラシレスモータ
EP4199314A4 (fr) * 2020-08-17 2023-10-04 Mitsubishi Electric Corporation Dispositif de machine électrique tournante et dispositif de direction assistée électrique

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CN111386647B (zh) 2022-07-15
JPWO2019102643A1 (ja) 2020-11-19
CN111386647A (zh) 2020-07-07
JP7120251B2 (ja) 2022-08-17

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