WO2023103223A1 - 电机、电动助力转向***和车辆 - Google Patents

电机、电动助力转向***和车辆 Download PDF

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Publication number
WO2023103223A1
WO2023103223A1 PCT/CN2022/082570 CN2022082570W WO2023103223A1 WO 2023103223 A1 WO2023103223 A1 WO 2023103223A1 CN 2022082570 W CN2022082570 W CN 2022082570W WO 2023103223 A1 WO2023103223 A1 WO 2023103223A1
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WO
WIPO (PCT)
Prior art keywords
wall
motor
distance
stator
base
Prior art date
Application number
PCT/CN2022/082570
Other languages
English (en)
French (fr)
Inventor
孙田田
施涛
葛笑
Original Assignee
安徽威灵汽车部件有限公司
广东威灵汽车部件有限公司
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
Priority claimed from CN202111500727.2A external-priority patent/CN116260271A/zh
Priority claimed from CN202123085058.5U external-priority patent/CN217115814U/zh
Application filed by 安徽威灵汽车部件有限公司, 广东威灵汽车部件有限公司 filed Critical 安徽威灵汽车部件有限公司
Publication of WO2023103223A1 publication Critical patent/WO2023103223A1/zh

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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

Definitions

  • the present application relates to the technical field of motors, in particular, to a motor, an electric power steering system and a vehicle.
  • An electric machine includes a number of components including a housing, a stator, a rotor, and the like. Unreasonable coordination of various components will result in waste of space and increase the overall volume and mass of the motor, which not only brings difficulties to the automotive system that the motor is adapted to, but also affects the performance of the motor such as vibration and noise.
  • This application aims to solve at least one of the technical problems existing in the prior art or related art.
  • the first aspect of the application proposes an electric machine.
  • a second aspect of the present application proposes an electric power steering system.
  • a third aspect of the present application proposes a vehicle.
  • the first aspect of the present application proposes a motor, including: a casing, the inner surface of the casing has a first wall and a second wall, and in the axial direction of the motor, the first wall is located on one side of the second wall.
  • the stator is arranged in the casing, and the stator includes: a bus bar, which is arranged in the casing, the bus bar includes a base and a plurality of bus bars, the bus bar is arranged on the base, the bus bar includes a connection part, and the base is relative to the first One wall is closer to the second wall, and there is a gap between the base and the second wall; the winding, the winding has a winding coil and a winding lead-out line, and the winding lead-out line is connected to the connecting part; wherein, the distance H1 from the connecting part to the second wall .
  • the distance H2 from the end of the lead-out wire of the winding to the second wall and the distance H3 from the base to the second wall satisfy: H3 ⁇ H2 ⁇ H1.
  • a motor provided by the application includes a casing and a stator.
  • the housing includes a first wall and a second wall, and in the axial direction of the motor, the first wall is located on one side of the second wall.
  • the bus bar includes a base and a plurality of bus bars, any bus bar in the plurality of bus bars is connected to the base, and the bus bar includes a connecting part, and the connecting part is used for connecting the winding lead-out wires.
  • the base is closer to the second wall relative to the first wall, the distance H1 from the connection part to the second wall, the distance H2 from the end of the winding lead-out line to the second wall, and the base
  • the distance H3 to the second wall satisfies: H3 ⁇ H2 ⁇ H1. That is, in the axial direction of the motor, the matching dimensions of the housing and the stator are defined.
  • the end of the base facing the second wall is closer to the second wall than the winding and the connecting part.
  • the internal structure of the motor is made more compact, thereby improving the safety and reliability of the product, helping to reduce the volume and weight of the motor, improving the adaptability of the motor, and reducing the production cost of the motor.
  • the winding lead-out line needs to protrude a longer distance toward the second wall side , then, if it is necessary to ensure the safe distance of the ends of the winding lead-out wires, the second wall will move accordingly, which will increase the overall size of the motor and increase the weight of the motor.
  • the distance H1 from the connecting portion to the second wall, the distance H2 from the end of the winding lead-out line to the second wall, and the distance H3 from the base to the second wall satisfy: H3 ⁇ H2 ⁇ H1.
  • the distance H1 from the connecting part to the second wall, and the distance H2 from the end of the winding lead-out line to the second wall satisfy:
  • the distance H1 from the connection part to the second wall surface and the distance H2 from the end of the winding lead wire to the second wall surface satisfy: It can protect the effectiveness and feasibility of the confluence function.
  • the values of include: 0.4, 0.5, 0.6, 0.7 and 0.8, etc., which are not listed here.
  • the stator further includes an insulating frame, and the bus bar is connected to the insulating frame; the distance L1 from the end of the winding away from the lead wire to the first wall, and the distance L2 from the insulating frame to the first wall satisfy: L2 ⁇ L1.
  • the stator further includes an insulating frame, and by defining the matching structure of the winding, the casing, and the insulating frame, the distance L2 from the insulating frame to the first wall is smaller than the distance L1 from the end of the winding away from the lead wire to the first wall.
  • the end face of the winding will not protrude from the end face of the insulating frame.
  • the insulating frame has the function of protecting the winding, so that even if the assembly space between the shell and the winding is reduced due to misoperation, only the insulating frame will be in contact with the shell, and the There will be no interference between the winding and the casing, which is conducive to improving the safety and reliability of product use.
  • both the insulating frame and the winding have gaps with the first wall, providing structural support for ensuring the safety and reliability of the motor.
  • the insulating frame includes two oppositely disposed insulating parts, the two insulating parts are located on opposite sides of the stator core, and the matching dimensions of the two insulating parts with the stator core and the winding are the same or approximately the same. If the distance L2 from the insulating frame to the first wall is greater than or equal to the distance L1 from the end of the winding away from the lead-out wire to the first wall, it means that the end face of the winding protrudes from the end face of the insulating frame. Then, when assembling the insulating frame and When the busbar is used, the winding will interfere with the busbar, so the matching size of the busbar and the insulating frame cannot be guaranteed.
  • the shell includes: a shell body; an end cover connected to the shell body, the end cover includes a cover plate and a first bearing seat, the cover plate is connected to the shell body, and a part of the cover plate forms the second On the wall surface, the first bearing seat is connected to the side of the cover plate facing the first wall surface.
  • the shell includes a shell body and an end cover, and the end cover is connected with the shell body.
  • the end cover includes a cover plate and a first bearing seat, the first bearing seat is connected to the side of the cover plate facing the first wall, the cover plate has the function of supporting and fixing the first bearing seat, and the first bearing seat has the function of fixing the bearing.
  • the base is provided with a relief portion, and at least a part of the first bearing seat can be inserted into the relief portion.
  • the base is provided with a relief portion, and at least a part of the first bearing seat can be inserted into the relief portion. That is, the matching structure of the first bearing seat and the escape portion is defined.
  • This arrangement can reduce the overall size of the motor in the axial direction of the motor while ensuring the effectiveness of the assembly of the housing and the bus bar, thereby helping to reduce the weight of the motor and reduce the production cost of the product.
  • the escape portion includes an avoidance hole.
  • the escape portion includes an avoidance hole, and after the housing and the bus bar are assembled, at least a part of the first bearing seat can be inserted into the avoidance hole.
  • the escape portion includes an escape groove.
  • the escape portion includes an avoidance groove, and after the housing and the bus bar are assembled, at least a part of the first bearing seat can be inserted into the avoidance groove.
  • a part of the base is recessed toward the first wall surface to form an escape groove.
  • the first bearing seat is located on one side of the base.
  • the first bearing seat is located on one side of the base, that is, a matching structure between the first bearing seat and the base is defined.
  • the matching structure of the first bearing seat and the base provides effective and reliable structural support for the matching structure of the second wall, the connecting portion and the winding.
  • the stator includes a stator core, and by defining the matching structure of the stator core and the first bearing seat, there is a gap between the stator core of the stator and the first bearing seat.
  • the positive fit, and the positive fit of the winding and the first bearing housing provide structural support.
  • stator iron core of the stator abuts against the first bearing seat, the accommodating space of the winding is compressed, and the effective assembly of the winding and the stator iron core cannot be ensured.
  • the shell body includes: a cylinder connected to the end cover; a cover connected to the cylinder, a part of the cover forms the first wall surface; a second bearing seat is arranged on the cover facing One side of the second wall; wherein, there is a gap between the stator iron core of the stator and the second bearing seat.
  • the shell body includes a cylinder and a cover, the cover is connected to the cylinder, the end cover is connected to the cylinder, a part of the cover forms the first wall, a part of the end cover forms the second wall, and the cover and the end cover form the second wall.
  • the end caps are set accordingly.
  • the second bearing seat is arranged on the side of the cover facing the second wall, the cover has the function of supporting and fixing the second bearing seat, and the second bearing seat has the function of fixing the bearing.
  • a bearing and an elastic washer are provided in the first bearing seat, the first bearing seat is connected to the first end of the elastic washer, and the bearing is connected to the second end of the elastic washer; wherein, the bearing is connected to the motor of the motor shaft.
  • a bearing and an elastic washer are arranged in the first bearing seat, the first bearing seat is connected to the first end of the elastic washer, and the bearing is connected to the second end of the elastic washer. That is to say, the first bearing seat is mated and connected with the bearing and the elastic washer.
  • the elastic washer can slow down the force acting on the bearing and the first bearing seat, and this setting can play a role of vibration reduction and noise reduction.
  • the bearing is connected to the motor shaft of the motor, that is, the bearing is sleeved on the motor shaft.
  • first bearing seat and the second bearing seat both have an open end and a bottom wall; the distance H4 from the open end to the bottom wall, and the distance H5 between the bearing and the bottom wall satisfy:
  • the first bearing seat has an open end and a bottom wall
  • the second bearing seat has an open end and a bottom wall
  • the open end and the bottom wall are arranged correspondingly.
  • the matching structure of the first bearing seat and the bearing is defined, and the matching structure of the second bearing seat and the bearing is defined. That is, fit dimensions for accommodating the elastic washer and the bearing are defined. This setting can effectively slow down the force acting on the bearing and ensure the vibration and noise reduction effects of the product.
  • the space for accommodating the elastic washer is small, that is, the larger the pre-deformation of the elastic washer, the elastic washer will easily push the bearing out of the first bearing seat or the fit between the end cover and the shell will be loose, which cannot be guaranteed.
  • the space for accommodating the elastic washer is large, that is, the pre-deformation of the elastic washer is small, and the deformation range of the elastic washer is small during operation, which will weaken the effect of vibration reduction and noise reduction.
  • the cylinder part and the cover part are integrally formed.
  • the cylinder part and the cover part are integrally formed.
  • This structural arrangement saves the assembly process of the cylinder part and the cover part, so the process of assembling and subsequent disassembly of the cylinder part and the cover part is simplified, which is beneficial to the lifting assembly. And disassembly efficiency, which can reduce production and maintenance costs.
  • the integral formation of the cylinder part and the cover part can ensure the dimensional accuracy requirements of the molding of the shell body.
  • the motor is taken along the axial direction perpendicular to the cross-section, in the cross-section, the outer contour of the stator core of the stator is denoted as the first contour line, and the outer contour line of the connecting part is denoted as Make the second contour line; the maximum distance D1 between any two points on the first contour line and the maximum distance D2 between any two points on the second contour line in the bus satisfy: D2 ⁇ D1.
  • the matching structure of the connecting part of the stator core and the bus bar is reasonably set, so that in the section, the outer contour of the stator core of the stator is recorded as the first contour line, and the outer contour of the connecting part is recorded as Second contour line. And define the matching size of the first contour line and the second contour line, specifically, the maximum distance D2 between any two points on the second contour line in the bus bar is less than or equal to the distance between any two points on the first contour line The maximum distance D1 between.
  • This setting can ensure the fit size of the stator core and the bus bar, and thus can ensure the effective fit of the stator and the bus bar.
  • D2 is greater than D1
  • interference between the casing and the bus bar is likely to occur, and the stability and reliability of the motor assembly cannot be guaranteed.
  • the shape enclosed by the outer contour of the stator core of the stator is a circle. Then, the maximum distance between any two points on the first contour line is the outer diameter of the stator core.
  • the shape enclosed by the outer contour of the stator core is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • the shape enclosed by the outer contours of the plurality of connecting parts is an irregular shape, wherein the irregular shape refers to a structure with an irregular shape.
  • the shape of the base is ring-shaped, and the motor also includes a rotor, which is rotatably arranged inside the stator; there is a gap between the rotor and the second bearing seat; along the axial direction perpendicular to the motor Carry out a section on the motor, in the section, the inner contour of the base is recorded as the third contour, the inner contour of the stator core of the stator is recorded as the fourth contour, and the outer contour of the rotor is recorded as the fifth contour;
  • the maximum distance D3 between any two points on the third contour line, the maximum distance D4 between any two points on the fourth contour line and the maximum distance D5 between any two points on the fifth contour line satisfy: D5 ⁇ D4 ⁇ D3.
  • the shape of the base is ring-shaped, and the motor further includes a rotor, which is rotatably arranged inside the stator.
  • the inner contour of the base is recorded as the third contour
  • the inner contour of the stator core of the stator is recorded as the fourth contour
  • the outer contour of the rotor is recorded as Make the fifth contour.
  • This setting can ensure the matching dimensions of the iron core, the rotor and the bus bar, thereby ensuring the effective matching of the stator and the rotor.
  • D3 is smaller than D4, or D3 is smaller than D5
  • interference will occur during assembly of the stator and rotor, and effective assembly of the motor cannot be guaranteed.
  • the shape enclosed by the inner contour of the base is a circle. Then, the maximum distance D3 between any two points on the third contour line is the inner diameter of the base.
  • the shape enclosed by the inner contour of the base is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • the shape enclosed by the inner contour line of the stator core of the stator is a circle. Then, the maximum distance between any two points on the fourth contour line is the inner diameter of the stator core.
  • the shape enclosed by the inner contour of the stator core is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • the shape enclosed by the outer contour of the rotor is a circle. Then, the maximum distance between any two points on the fifth contour line is the outer diameter of the rotor.
  • the shape enclosed by the outer contour of the rotor is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • the motor includes a power steering motor.
  • the second aspect of the present application provides an electric power steering system, including: the motor according to any one of the technical solutions in the first aspect.
  • the electric power steering system provided by the present application includes the motor according to any one of the technical solutions in the first aspect, it has all the beneficial effects of the above-mentioned motor, and will not describe them here.
  • the third aspect of the present application provides a vehicle, including: the electric motor according to any one of the technical solutions in the first aspect; or the electric power steering system in the second aspect.
  • the vehicle provided by this application includes the motor of any technical solution in the first aspect, or the electric power steering system in the second aspect, so it has all the beneficial effects of the above-mentioned motor or electric power steering system. a statement.
  • the vehicle proposed in this application may be a traditional fuel vehicle or a new energy vehicle.
  • new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.
  • FIG. 1 shows a schematic structural view of a first viewing angle of a motor according to an embodiment of the present application
  • Figure 2 is a partial enlarged view of A in Figure 1;
  • Fig. 3 is a partial enlarged view of place B in Fig. 1;
  • FIG. 4 shows a schematic structural diagram of a first viewing angle of a motor according to an embodiment of the present application
  • Fig. 5 shows a schematic structural diagram of an electric power steering system according to an embodiment of the present application.
  • motor 110 shell, 112 first wall, 114 second wall, 116 shell body, 118 end cover, 120 cover plate, 122 first bearing seat, 124 cylinder part, 126 cover part, 128 second bearing seat, 130 confluence Row, 132 base, 134 bus bar, 136 connection part, 138 avoidance part, 139 stator, 140 stator core, 142 winding, 143 end of winding lead wire, 144 insulating frame, 150 bearing, 160 elastic washer, 170 motor Axle, 300 Electric Power Steering, 310 Steering Wheel, 320 Wheels, 330 Axle, 340 Steering Axle.
  • a motor 100 , an electric power steering system 300 and a vehicle according to some embodiments of the present application are described below with reference to FIGS. 1 to 5 .
  • the embodiment of the first aspect of the present application proposes a motor 100 including a casing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the motor 100 includes a housing 110 and a stator 139 .
  • the housing 110 includes a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the bus bar 130 includes a base and a plurality of bus bars 134 , any bus bar 134 in the plurality of bus bars 134 is connected to the base 132 , and the bus bar 134 includes a connection portion 136 for connecting the winding lead wires.
  • the base 132 is closer to the second wall 114 relative to the first wall 112, the distance H1 from the connecting part 136 to the second wall 114, the end 143 of the winding lead-out wire to the second wall
  • the distance H2 between the two walls 114 and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1. That is, in the axial direction of the motor 100 , the matching dimensions of the housing 110 and the stator 139 are defined.
  • the end of the base 132 facing the second wall 114 is closer to the second wall 114 than the winding 142 and the connecting portion 136 , and through the matching structure between the base 132 and the housing 110 , While ensuring a safe distance between the winding 142 and the connecting portion 136 , it is beneficial to reduce the fit size between the winding 142 , the connecting portion 136 and the second wall surface 114 of the casing 110 .
  • the internal structure of the motor 100 is more compact, thereby improving the safety and reliability of the product, helping to reduce the volume and weight of the motor 100, improving the adaptability of the motor 100, and reducing the size of the motor 100. production cost.
  • the internal structure of the motor 100 is more compact, thereby improving the safety and reliability of the product, helping to reduce the volume and weight of the motor 100, improving the adaptability of the motor 100, and reducing the size of the motor 100. production cost.
  • the winding lead-out wire needs to protrude toward the second wall 114 side If the distance is longer, if the safety distance of the end 143 of the winding lead-out line is to be ensured, the second wall surface 114 will move accordingly, so the overall size of the motor 100 will be increased, and the motor 100 will be enlarged. 100 weight.
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • This arrangement can ensure that the winding 142 will not contact the second wall 114 of the casing 110 , that is, the winding 142 will not interfere with the second wall 114 . In this way, while ensuring the effectiveness of the assembly of the motor 100 , it is possible to reduce the accuracy requirements for product assembly, which is beneficial to improving assembly efficiency and further reducing the production cost of the product.
  • the base 132 is an insulator, and the base 132 is used to support the bus bars 134 and isolate adjacent bus bars 134 among the multiple bus bars 134 , so as to function as electrical insulation.
  • the bus bar 134 is a conductor, and the bus bar 134 is used to connect the ends of multiple windings 142 that need to be connected together in the windings 142 , so as to realize the electrical connection of the ends of the multiple windings 142 and realize the current converging function.
  • the base 132 is an insulator, and the base 132 is used to support the bus bars 134 and isolate adjacent bus bars 134 among the multiple bus bars 134 , so as to function as electrical insulation.
  • the bus bar 134 is a conductor, and the bus bar 134 is used to connect the ends of multiple windings 142 that need to be connected together in the windings 142 , so as to realize the electrical connection of the ends of the multiple windings 142 and realize the current converging function.
  • embodiment 2 provides a motor 100 , and the motor 100 includes a housing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the distance H1 from the connecting portion 136 to the second wall 114 and the distance H2 from the end 143 of the lead-out wire of the winding to the second wall satisfy:
  • connection portion 136 of the bus bar 130 and the second wall surface 114 of the housing 110, the distance H1 from the connection portion 136 to the second wall surface 114, the end portion 143 of the winding lead-out wire to the second wall surface 114
  • the distance H2 satisfies: It can protect the effectiveness and feasibility of the confluence function.
  • the space of the base 132 for accommodating the bus bar 130 is increased, which is a waste of space.
  • the external dimension of the motor 100 and the weight of the motor 100 will be increased, resulting in high production costs.
  • the values of include: 0.4, 0.5, 0.6, 0.7 and 0.8, etc., which are not listed here.
  • embodiment 3 provides a motor 100 , and the motor 100 includes a housing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the stator 139 further includes an insulating frame 144 , and the bus bar 130 is connected to the insulating frame 144 .
  • the distance L1 from the winding 142 to the first wall 112 and the distance L2 from the insulating frame 144 to the first wall 112 satisfy: L2 ⁇ L1.
  • the stator 139 also includes an insulating frame 144, by defining the matching structure of the winding 142, the casing 110 and the insulating frame 144, the distance L2 from the insulating frame 144 to the first wall 112 is smaller than the distance L1 from the winding 142 to the first wall 112.
  • the end face of the winding 142 will not protrude from the end face of the insulating frame 144, and the insulating frame 144 has the effect of protecting the winding 142, so that even if the assembly space between the casing 110 and the winding 142 is reduced due to misoperation, the insulating frame 144 is ahead of the winding 142.
  • the winding 142 interferes with the casing 110 without interference between the winding 142 and the casing 110 , which is beneficial to improving the safety and reliability of the product.
  • the insulating frame 144 includes two insulating parts arranged oppositely, the two insulating parts are located on opposite sides of the stator core 140, and the matching dimensions of the two insulating parts with the stator core 140 and the winding 142 are the same or similar same.
  • the distance L2 from the insulating frame 144 to the first wall 112 is greater than or equal to the distance L1 from the winding 142 to the first wall 112, it means that the end face of the winding 142 protrudes from the end face of the insulating frame 144, then, when assembling the insulating frame 144 When connecting with the bus bar 130 , the winding 142 will interfere with the bus bar 130 , so the matching size between the bus bar 130 and the insulating frame 144 cannot be guaranteed.
  • embodiment 4 provides a motor 100 , and the motor 100 includes a housing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the housing 110 includes a housing body 116 and an end cover 118 .
  • the end cover 118 is connected to the shell body 116 , the end cover 118 includes a cover plate 120 and a first bearing seat 122 , the cover plate 120 is connected to the shell body 116 , and a part of the cover plate 120 forms the second wall 114 .
  • the first bearing seat 122 is connected to a side of the cover plate 120 facing the first wall 112 .
  • the housing 110 includes a housing body 116 and an end cover 118 , and the end cover 118 is connected to the housing body 116 .
  • the end cover 118 includes a cover plate 120 and a first bearing seat 122, the first bearing seat 122 is connected to the side of the cover plate 120 facing the first wall 112, the cover plate 120 has the function of supporting and fixing the first bearing seat 122, the first The bearing seat 122 has the function of fixing the bearing 150 .
  • At least a part of the end cover 118 is located in the housing 110 , and the part of the end cover 118 located in the housing 110 is in interference fit with the first wall segment.
  • This setting avoids the investment of fasteners used to fasten the shell 110 and the end cover 118 in the related art, which is conducive to simplifying the disassembly and assembly process of the shell 110 and the end cover 118, is conducive to improving the efficiency of product disassembly and assembly, and is conducive to reducing The production cost of the product.
  • the part of the end cap 118 located in the housing 110 is in an interference fit with the housing 110. This setting can ensure that the end cap 118 and the housing 110 are organically combined as a whole, and the end cap 118 will not loosen or even pop out of the housing 110. , providing an effective structural support to ensure the safety and reliability of the product.
  • the inner surface of the housing 110 includes a first matching wall and a second matching wall, the first matching wall and the second matching wall are arranged around the axis of the motor 100, the second matching wall is connected to the first side of the first matching wall, The distance from the second matching wall to the outer surface of the housing 110 is greater than the distance from the first matching wall to the outer surface of the housing 110 , and the portion of the end cap 118 inside the housing 110 is interference fit with the first matching wall.
  • the second matching wall is connected to the first side of the first matching wall. The distance from the second matching wall to the outer surface of the housing 110 is greater than the distance from the first matching wall to the outer surface of the housing 110 .
  • the thickness of the part of the housing 110 at the second matching wall is greater than the thickness of the part of the housing 110 at the first matching wall.
  • a stepped structure can be formed between the first matching wall and the second matching wall, and the second matching wall can block the end cover 118 along the axial direction of the motor 100 , that is to say, the second matching wall has a limit end along the axial direction of the motor 100
  • the function of the cover 118 is to ensure the matching dimensions between the housing 110 and the end cover 118 , and further ensure the matching dimensions between the end cover 118 and other components in the housing 110 , so as to ensure the safety of the motor 100 .
  • embodiment 5 provides a motor 100 , and the motor 100 includes a casing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the housing 110 includes a housing body 116 and an end cap 118 .
  • the end cover 118 is connected to the shell body 116 , the end cover 118 includes a cover plate 120 and a first bearing seat 122 , the cover plate 120 is connected to the shell body 116 , and a part of the cover plate 120 forms the second wall 114 .
  • the first bearing seat 122 is connected to a side of the cover plate 120 facing the first wall 112 .
  • the base 132 is provided with a avoidance portion 138 , and at least a part of the first bearing seat 122 can be inserted into the avoidance portion 138 .
  • the structure of the base 132 so that the base 132 is provided with the avoidance portion 138 , at least a part of the first bearing seat 122 can be inserted into the avoidance portion 138 . That is, the matching structure of the first bearing seat 122 and the escape portion 138 is defined.
  • This setting can reduce the overall size of the motor 100 in the axial direction of the motor 100 while ensuring the effectiveness of the assembly of the housing 110 and the bus bar 130, thereby helping to reduce the weight of the motor 100 and reducing the production of the product. cost.
  • the escape portion 138 includes an avoidance hole.
  • the avoidance portion 138 includes a avoidance hole, and at least a part of the first bearing seat 122 can be inserted into the avoidance hole after the housing 110 and the bus bar 130 are assembled.
  • the escape portion 138 includes an escape groove.
  • the escape portion 138 includes an avoidance groove, and after the housing 110 and the bus bar 130 are assembled, at least a part of the first bearing seat 122 can be inserted into the avoidance groove.
  • a part of the base 132 is recessed toward the first wall surface 112 to form an escape groove.
  • Embodiment 6 is a diagrammatic representation of Embodiment 6
  • embodiment 6 provides a motor 100 , and the motor 100 includes a casing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the housing 110 includes a housing body 116 and an end cap 118 .
  • the end cover 118 is connected to the shell body 116 , the end cover 118 includes a cover plate 120 and a first bearing seat 122 , the cover plate 120 is connected to the shell body 116 , and a part of the cover plate 120 forms the second wall 114 .
  • the first bearing seat 122 is connected to a side of the cover plate 120 facing the first wall 112 .
  • first bearing seat 122 is located on one side of the base 132 .
  • the first bearing seat 122 is located on one side of the base 132, that is, a matching structure between the first bearing seat 122 and the base 132 is defined.
  • the matching structure of the first bearing seat 122 and the base 132 provides effective and reliable structural support for the matching structure of the second wall surface 114 , the connecting portion 136 and the winding 142 .
  • the stator 139 includes a stator core 140, by defining the matching structure of the stator core 140 and the first bearing seat 122, there is a gap between the stator core 140 of the stator 139 and the first bearing seat 122, which is set as the winding 142
  • the effective cooperation with the stator core 140 and the effective cooperation between the winding 142 and the first bearing seat 122 provide structural support.
  • stator core 140 of the stator 139 abuts against the first bearing seat 122 , the accommodating space of the winding 142 will be compressed, and the effective assembly of the winding 142 and the stator core 140 cannot be ensured.
  • Embodiment 7 is a diagrammatic representation of Embodiment 7:
  • embodiment 7 provides a motor 100 , and the motor 100 includes a casing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the housing 110 includes a housing body 116 and an end cap 118 .
  • the end cover 118 is connected to the shell body 116 , the end cover 118 includes a cover plate 120 and a first bearing seat 122 , the cover plate 120 is connected to the shell body 116 , and a part of the cover plate 120 forms the second wall 114 .
  • the first bearing seat 122 is connected to a side of the cover plate 120 facing the first wall 112 .
  • the shell body 116 includes a cylinder portion 124 , a cover portion 126 and a second bearing seat 128 .
  • the barrel portion 124 is connected to the end cap 118 .
  • the cover portion 126 is connected to the cylinder portion 124 , and a part of the cover portion 126 forms the first wall surface 112 .
  • the second bearing seat 128 is disposed on a side of the cover portion 126 facing the second wall surface 114 .
  • the shell body 116 includes a cylinder portion 124 and a cover portion 126, the cover portion 126 is connected to the cylinder portion 124, the end cap 118 is connected to the cylinder portion 124, a part of the cover portion 126 forms the first wall surface 112, and a part of the end cover 118 forms the The second wall surface 114 and the cover portion 126 are disposed corresponding to the end cover 118 .
  • the second bearing seat 128 is disposed on the side of the cover portion 126 facing the second wall 114 , the cover portion 126 has the function of supporting and fixing the second bearing seat 128 , and the second bearing seat 128 has the function of fixing the bearing 150 .
  • the second bearing seat 128 and the second bearing will be magnetically attached, thereby affecting the reliability of the second bearing. performance, thereby increasing the friction torque of the motor 100 and reducing the performance of the motor 100 .
  • a bearing 150 and an elastic washer 160 are disposed in the first bearing seat 122 .
  • the first bearing seat 122 is connected to the first end of the elastic washer 160
  • the bearing 150 is connected to the second end of the elastic washer 160 .
  • the bearing 150 is connected to the motor shaft 170 of the motor 100 .
  • the first bearing seat 122 is provided with a bearing 150 and an elastic washer 160 , the first bearing seat 122 is connected to the first end of the elastic washer 160 , and the bearing 150 is connected to the second end of the elastic washer 160 . That is to say, the first bearing seat 122 is mated with the bearing 150 and the elastic washer 160 .
  • the elastic washer 160 can slow down the force acting on the bearing 150 and the first bearing seat 122 , and this arrangement can play a role of vibration reduction and noise reduction.
  • the bearing 150 is connected to the motor shaft 170 of the motor 100 , that is, the bearing 150 is sleeved on the motor shaft 170 .
  • both the first bearing seat 122 and the second bearing seat 128 have an open end and a bottom wall.
  • the first bearing seat 122 has an open end and a bottom wall
  • the second bearing seat 128 has an open end and a bottom wall
  • the open end and the bottom wall are arranged correspondingly.
  • the matching structure of the first bearing seat 122 and the bearing 150 is defined, and the matching structure of the second bearing seat 128 and the bearing 150 is defined. That is, matching dimensions for accommodating the elastic washer 160 and the bearing 150 are defined. This setting can effectively slow down the force acting on the bearing 150 and the seat of the bearing 150, and ensure the effect of vibration reduction and noise reduction in the use of the product.
  • the space for accommodating the elastic washer 160 is small, that is, the larger the pre-deformation of the elastic washer 160, the elastic washer 160 is likely to push the bearing 150 out of the first bearing seat 122 or the gap between the end cover 118 and the housing 110. If the fit is loose, the safety and reliability of the product cannot be guaranteed.
  • the space for accommodating the elastic washer 160 is large, that is, the pre-deformation of the elastic washer 160 is small, and the deformation of the elastic washer 160 is small during operation, which will weaken the effects of vibration and noise reduction.
  • barrel portion 124 is integrally formed with the cover portion 126 .
  • the barrel portion 124 and the cover portion 126 are integrally formed, and this structure is provided because the assembly process of the barrel portion 124 and the cover portion 126 is omitted, so the process of assembling and subsequent disassembly of the barrel portion 124 and the cover portion 126 is simplified, which is beneficial to Improve assembly and disassembly efficiency, thereby reducing production and maintenance costs.
  • the integral formation of the barrel portion 124 and the cover portion 126 can ensure the dimensional accuracy requirements of the molding of the shell body 116 .
  • Embodiment 8 is a diagrammatic representation of Embodiment 8
  • embodiment 8 provides a motor 100 , and the motor 100 includes a casing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • a section of the motor 100 is taken along an axis perpendicular to the motor 100 .
  • the outer contour of the stator core 140 of the stator 139 is referred to as a first contour
  • the outer contour of the connecting portion 136 is referred to as a second contour
  • This setting can ensure the matching dimensions of the stator core 140 and the bus bar 130 , and thus can ensure the effective matching of the stator 139 and the bus bar 130 .
  • D2 is greater than D1 , interference between the housing 110 and the bus bar 130 is likely to occur, and the stability and reliability of the assembly of the motor 100 cannot be guaranteed.
  • the shape enclosed by the outer contour of the stator core 140 of the stator 139 is a circle. Then, the maximum distance between any two points on the first contour line is the outer diameter of the stator core 140 .
  • the shape enclosed by the outer contour of the stator core 140 is an irregular shape, wherein the irregular shape refers to a structure with an irregular shape.
  • the shape enclosed by the outer contours of the plurality of connecting portions 136 is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • Embodiment 9 is a diagrammatic representation of Embodiment 9:
  • embodiment 9 provides a motor 100 , and the motor 100 includes a casing 110 and a stator 139 .
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the base 132 is annular in shape, and the motor 100 further includes a rotor, which is rotatably disposed inside the stator 139 ; there is a gap between the rotor and the second bearing seat 128 .
  • the motor 100 is sectioned along an axial direction perpendicular to the motor 100 .
  • the inner contour of the base 132 is designated as the third contour
  • the inner contour of the stator core 140 of the stator 139 is designated as the fourth contour
  • the outer contour of the rotor is designated as the fifth contour.
  • the maximum distance D3 between any two points on the third contour line, the maximum distance D4 between any two points on the fourth contour line and the maximum distance D5 between any two points on the fifth contour line satisfy: D5 ⁇ D4 ⁇ D3.
  • the base 132 is annular in shape
  • the motor 100 further includes a rotor, which is rotatably disposed inside the stator 139 .
  • the inner contour line of the base 132 is marked as the third contour line
  • the inner contour line of the stator core 140 of the stator 139 is marked as the fourth contour line
  • the inner contour line of the rotor is marked as the fourth contour line.
  • the outer contour line is denoted as the fifth contour line.
  • This setting can ensure the matching dimensions of the iron core, the rotor and the bus bar 130 , thereby ensuring the effective matching between the stator 139 and the rotor.
  • D3 is smaller than D4, or D3 is smaller than D5
  • interference will occur when the stator 139 and the rotor are assembled, and the effective assembly of the motor 100 cannot be guaranteed.
  • the shape enclosed by the inner contour of the base 132 is a circle. Then, the maximum distance D3 between any two points on the third contour line is the inner diameter of the base 132 .
  • the shape enclosed by the inner contour of the base 132 is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • the shape enclosed by the inner contour of the stator core 140 of the stator 139 is a circle. Then, the maximum distance between any two points on the fourth contour line is the inner diameter of the stator core 140 .
  • the shape enclosed by the inner contour of the stator core 140 is an irregular shape, wherein the irregular shape refers to a structure with an irregular shape.
  • the shape enclosed by the outer contour of the rotor is a circle. Then, the maximum distance between any two points on the fifth contour line is the outer diameter of the rotor.
  • the shape enclosed by the outer contour of the rotor is a special shape, wherein the special shape refers to a structure with an irregular shape.
  • Embodiment 10 provides a motor 100, and the motor 100 includes a casing 110 and a stator 139.
  • the inner surface of the housing 110 has a first wall 112 and a second wall 114 , and the first wall 112 is located on one side of the second wall 114 in the axial direction of the motor 100 .
  • the stator 139 is arranged in the casing 110 , and the stator 139 includes: a bus bar 130 and a winding 142 .
  • the bus bar 130 is disposed in the housing 110 .
  • the bus bar 130 includes a base 132 and a plurality of bus bars 134 .
  • the base 132 is closer to the second wall 114 than the first wall 112 , and there is a gap between the base 132 and the second wall 114 .
  • the winding 142 has a winding coil and a winding lead-out wire, and the winding lead-out wire is connected to the connection part 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 , the distance H2 from the end portion 143 of the winding lead wire to the second wall 114 , and the distance H3 from the base 132 to the second wall 114 satisfy: H3 ⁇ H2 ⁇ H1.
  • the motor 100 includes a power steering motor.
  • the embodiment of the second aspect of the present application provides an electric power steering system 300 , including: the motor 100 according to any embodiment of the first aspect.
  • the electric power steering system 300 provided in the present application includes the motor 100 according to any embodiment of the first aspect, it has all the beneficial effects of the above-mentioned motor 100 , which will not be stated here.
  • the electric power steering system 300 (Electric Power Steering, abbreviated EPS) is a power steering system that directly relies on the motor 100 to provide auxiliary torque.
  • EPS Electronic Power Steering
  • HPS Hydrophilic Power Steering
  • the electric power steering system 300 includes multiple implementable manners. Wherein, one of the various implementable manners will be described in detail below. Specifically, in an implementable manner, the electric power steering system 300 is mounted on a steering mechanism of a wheel 320 of an automobile.
  • the electric power steering system 300 of the present embodiment is a column-type power steering system that directly reduces the steering force by the power of the motor 100 .
  • the electric power steering system 300 includes a motor 100 , a steering shaft 340 and an axle 330 .
  • Steering shaft 340 transfers input from steering wheel 310 to axle 330 with wheels 320 .
  • the power of the motor 100 is transmitted to the axle shaft 330 via a ball screw.
  • the motor 100 used in the column-type electric power steering system 300 is installed inside the engine room.
  • the electric power steering system 300 of the present application is not limited to a column type, and may be a rack type or the like.
  • the embodiment of the third aspect of the present application proposes a vehicle, including: the motor 100 according to any embodiment of the first aspect, or the electric power steering system 300 according to the second aspect.
  • the vehicle provided by the present application includes the motor of any embodiment in the first aspect, or the electric power steering system in the second aspect, so it has all the beneficial effects of the above-mentioned motor or electric power steering system, and no further details will be made here. a statement.
  • the vehicle proposed in this application may be a traditional fuel vehicle or a new energy vehicle.
  • new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.
  • the motor 100 includes a casing 110 , a bearing 150 , an elastic washer 160 , a rotor, and a stator 139 , and the casing 110 includes a casing body 116 and an end cover 118 .
  • the housing 110 accommodates the rotor and the stator 139 .
  • the case body 116 has a cylindrical portion 124 and a cover portion 126 .
  • the cover portion 126 is located on the first axial side of the stator 139 .
  • the cylindrical portion 124 extends from the radially outer edge portion of the cover portion 126 toward the second side in the axial direction.
  • the cover portion 126 has a second bearing seat 128 .
  • the end cover 118 is supported by the shell body 116 on the second side in the axial direction, and has a first bearing seat 122 extending in the axial direction at its center.
  • the number of bearings 150 is two, and the first bearing seat 122 and the second bearing seat 128 are both provided with one bearing 150 .
  • the rotor has a shaft arranged along a central axis.
  • a rotor iron core is sheathed on the shaft.
  • the stator 139 is radially opposed to the rotor with a gap therebetween.
  • the stator 139 includes: an annular stator core 140 , an insulating frame 144 formed by splicing multiple segments of the stator 139 , and a winding 142 installed on the insulating frame 144 . Winding 142 is connected to busbar 130 .
  • the bus bar 130 has a plurality of bus bars 134 and a base 132 .
  • the bus bar 134 includes a connection portion 136 .
  • the distance H1 from the connecting portion 136 to the second wall 114 and the distance H2 from the end 143 of the winding lead-out line to the second wall 114 satisfy:
  • connection means two or more, unless otherwise clearly defined.
  • connection can be fixed connection, detachable connection, or integral connection; “connection” can be directly or indirectly through an intermediary.

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Abstract

本申请提供了一种电机、电动助力转向***和车辆。其中，电机，包括：外壳，外壳的内表面具有第一壁面和第二壁面，在电机的轴向方向上，第一壁面位于第二壁面的一侧；定子，设于外壳内，定子包括：汇流排，设于外壳内，汇流排包括基座和多个汇流条，汇流条设于基座上，汇流条包括连接部，基座相对于第一壁面更靠近第二壁面，且基座与第二壁面之间具有间隙；绕组，绕组具有绕组线圈及绕组引出线，绕组引出线与连接部连接；连接部至第二壁面的距离H1、绕组引出线的端部至第二壁面的距离H2及基座至第二壁面的距离H3满足：H3＜H2＜H1。本申请在保证电机电气安全距离的前提下使得电机内部结构更紧凑。

Description

电机、电动助力转向***和车辆
本申请要求于2021年12月09日提交中国国家知识产权局、申请号为“202111500727.2”、发明名称为“电机、电动助力转向***和车辆”及2021年12月09日提交中国国家知识产权局、申请号为“202123085058.5”、发明名称为“电机、电动助力转向***和车辆”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电机技术领域，具体而言，涉及一种电机、一种电动助力转向***和一种车辆。
背景技术
电机包括多个部件，多个部件包括外壳、定子、转子等等。各个部件的配合设置不合理，会造成空间浪费，使得电机整体体积及质量大，不仅对电机适配的汽车***带来困难，还会影响电机振动噪声等性能。
发明内容
本申请旨在至少解决现有技术或相关技术中存在的技术问题之一。
为此，本申请的第一方面提出了一种电机。
本申请的第二方面提出了一种电动助力转向***。
本申请的第三方面提出了一种车辆。
有鉴于此，本申请的第一方面提出了一种电机，包括：外壳，外壳的内表面具有第一壁面和第二壁面，在电机的轴向方向上，第一壁面位于第二壁面的一侧；定子，设于外壳内，定子包括：汇流排，设于外壳内，汇流排包括基座和多个汇流条，汇流条设于基座上，汇流条包括连接部，基座相对于第一壁面更靠近第二壁面，且基座与第二壁面之间具有间隙；绕组，绕组具有绕组线圈及绕组引出线，绕组引出线与连接部连接；其中，连接部至第二壁面的距离H1、绕组引出线的端部至第二壁面的距离H2及 基座至第二壁面的距离H3满足：H3＜H2＜H1。
本申请提供的一种电机包括外壳和定子。外壳包括第一壁面和第二壁面，在电机的轴向方向上，第一壁面位于第二壁面的一侧。汇流排包括底座和多个汇流条，多个汇流条中的任一汇流条连接基座，汇流条包括连接部，连接部用于连接绕组引出线。
通过合理设置外壳和定子的配合结构，使得基座相对于第一壁面更靠近第二壁面，连接部至第二壁面的距离H1、绕组引出线的端部至第二壁面的距离H2及基座至第二壁面的距离H3满足：H3＜H2＜H1。即，在电机的轴向方向上，对外壳和定子的配合尺寸进行了限定。
具体地，基座朝向第二壁面的一端，相较于绕组和连接部更靠近第二壁面，通过基座与外壳的配合结构，在保证绕组和连接部的安全距离的同时，有利于减小绕组、连接部和外壳的第二壁面之间的配合尺寸。
这样在保证电机电气安全距离的前提下使得电机内部结构更紧凑，从而提高产品的安全可靠性，有利于减小电机体积及重量，提高电机的适配性，有利于降低电机的生产成本。
若，绕组引出线的端部位于基座朝向第二壁面的一端和第二壁面之间，即与本专利保护的形式相比，绕组引出线需要朝向第二壁面一侧伸出更长的距离，则，要保证绕组引出线的端部的安全距离的话，就会使第二壁面随之移动，那么就会增大电机的整机外形尺寸，且会增大电机的重量。
另外，连接部至第二壁面的距离H1、绕组引出线的端部至第二壁面的距离H2及基座至第二壁面的距离H3满足：H3＜H2＜H1。该设置可保证绕组不会与外壳的第二壁面接触，也即，绕组不会干涉第二壁面。这样，在保证电机装配的有效性的同时，能够降低对产品装配的精度要求，有利于提升装配效率，及有利于进一步降低产品的生产成本。
根据本申请上述的电机，还可以具有以下附加技术特征：
在上述技术方案中，进一步地，连接部至第二壁面的距离H1、绕组引出线的端部至第二壁面的距离H2满足：
Figure PCTCN2022082570-appb-000001
在该技术方案中，通过合理设置汇流排的连接部和外壳的第二壁面的配合结构，使得连接部至第二壁面的距离H1、绕组引出线的端部至第二壁 面的距离H2满足：
Figure PCTCN2022082570-appb-000002
能保护汇流功能的有效性及可行性。
在满足产品使用的安全距离要求的前提下：
若，
Figure PCTCN2022082570-appb-000003
则，增大了容置汇流排的基座的空间，是对空间的浪费，这样，会增大电机的外形尺寸，及增大电机的重量，生产成本高。
若，
Figure PCTCN2022082570-appb-000004
则，用于容置汇流排的基座的空间被缩小，易发生汇流排的基座和第二壁面干涉的情况。
具体地，
Figure PCTCN2022082570-appb-000005
的值包括：0.4、0.5、0.6、0.7和0.8等等，在此不一一例举。
在上述任一技术方案中，进一步地，定子还包括绝缘框架，汇流排与绝缘框架连接；绕组背离引出线的一端至第一壁面的距离L1、绝缘框架至第一壁面的距离L2满足：L2＜L1。
在该技术方案中，定子还包括绝缘框架，通过限定绕组、外壳和绝缘框架的配合结构，使得绝缘框架至第一壁面的距离L2小于，绕组背离引出线的一端至第一壁面的距离L1。绕组的端面不会凸伸出绝缘框架的端面，绝缘框架具有保护绕组的作用，使得即使由于误操作而缩小外壳和绕组之间的装配空间时，也仅会使绝缘框架与外壳相接触，而不会发生绕组与外壳干涉的情况，有利于提升产品使用的安全性及可靠性。
另外，绝缘框架和绕组均与第一壁面具有间隙，为保证电机使用的安全性及可靠性提供了结构支撑。
可以理解的是，由于绝缘框架包括相对设置的两个绝缘部，两个绝缘部位于定子铁芯的相对两侧，两个绝缘部与定子铁芯和绕组的配合尺寸相同或近似相同。若，绝缘框架至第一壁面的距离L2大于等于，绕组背离引出线的一端至第一壁面的距离L1，则，意味着绕组的端面凸伸出绝缘框架的端面，那么，在装配绝缘框架和汇流排时，绕组会与汇流排发生干涉，那么就无法保证汇流排与绝缘框架的配合尺寸。
在上述任一技术方案中，进一步地，外壳包括：壳本体；端盖，与壳本体连接，端盖包括盖板和第一轴承座，盖板与壳本体连接，盖板的一部分形成第二壁面，第一轴承座与盖板朝向第一壁面的一侧连接。
在该技术方案中，外壳包括壳本体和端盖，端盖与壳本体连接。端盖包括盖板和第一轴承座，第一轴承座与盖板朝向第一壁面的一侧连接，盖板具有支撑和固定第一轴承座的作用，第一轴承座具有固定轴承的作用。
在上述任一技术方案中，进一步地，基座设有避让部，第一轴承座的至少一部分能够***避让部内。
在该技术方案中，通过合理设置基座的结构，使得基座设有避让部，第一轴承座的至少一部分能够***避让部内。也即，限定了第一轴承座和避让部的配合结构。该设置在保证外壳和汇流排装配的有效性的同时，能够在电机的轴向上减小电机的整机尺寸，进而有利于减小电机的重量，有利于降低产品的生产成本。
在上述任一技术方案中，进一步地，避让部包括避让孔。
在该技术方案中，避让部包括避让孔，外壳和汇流排装配后，第一轴承座的至少一部分能够***避让孔内。
在上述任一技术方案中，进一步地，避让部包括避让槽。
在该技术方案中，避让部包括避让槽，外壳和汇流排装配后，第一轴承座的至少一部分能够***避让槽内。
具体地，基座的一部分朝向第一壁面的方向凹陷以形成避让槽。
在上述任一技术方案中，进一步地，第一轴承座位于基座的一侧。
在该技术方案中，第一轴承座位于基座的一侧，即，限定了第一轴承座和基座的配合结构。第一轴承座和基座的配合结构，为第二壁面、连接部及绕组的配合结构提供了有效且可靠的结构支撑。
在上述任一技术方案中，进一步地，定子的定子铁芯与第一轴承座之间具有间隙。
在该技术方案中，定子包括定子铁芯，通过限定定子铁芯和第一轴承座的配合结构，使得定子的定子铁芯与第一轴承座之间具有间隙，该设置为绕组与定子铁芯有效配合，及绕组与第一轴承座的有效配合提供了结构支撑。
若，定子的定子铁芯与第一轴承座相抵靠，那么，导致绕组的容置空间被压缩，无法保证绕组与定子铁芯的有效装配。
在上述任一技术方案中，进一步地，壳本体包括：筒部，与端盖连接；盖部，与筒部连接，盖部的一部分形成第一壁面；第二轴承座，设于盖部朝向第二壁面的一侧；其中，定子的定子铁芯与第二轴承座之间具有间隙。
在该技术方案中，壳本体包括筒部和盖部，盖部与筒部连接，端盖与筒部连接，盖部的一部分形成第一壁面，端盖的一部分形成第二壁面，盖部与端盖对应设置。
另外，第二轴承座设于盖部朝向第二壁面的一侧，盖部具有支撑和固定第二轴承座的作用，第二轴承座具有固定轴承的作用。
进一步地，转子的转子铁芯与第二轴承座之间具有间隙，该设置为转子铁芯与第二轴承座之间的提供了电气安全性能及第二轴承可靠性保证。
若，转子的转子铁芯与第二轴承座相抵靠，那么，由于转子铁芯的端部漏磁现象，会使第二轴承座及第二轴承附带磁性，从而影响第二轴承的可靠性，进而增大电机的摩擦转矩，降低电机的性能。
在上述任一技术方案中，进一步地，第一轴承座内设有轴承和弹性垫圈，第一轴承座与弹性垫圈的第一端连接，轴承连接弹性垫圈的第二端；其中，轴承连接电机的电机轴。
在该技术方案中，第一轴承座内设有轴承和弹性垫圈，第一轴承座与弹性垫圈的第一端连接，轴承连接弹性垫圈的第二端。也就是说，第一轴承座与轴承及弹性垫圈配合连接。弹性垫圈能够减缓作用于轴承和第一轴承座的作用力，该设置能够起到减振的作用，具有降噪的效果。
可以理解的是，轴承连接电机的电机轴，即，轴承套设于电机轴。
在上述任一技术方案中，进一步地，第一轴承座和第二轴承座均具有开口端和底壁；开口端至底壁的距离H4、轴承与底壁之间的距离H5满足：
Figure PCTCN2022082570-appb-000006
在该技术方案中，第一轴承座具有开口端和底壁，第二轴承座具有开口端和底壁，开口端与底壁对应设置。通过合理设置第一轴承座和第二轴承座的结构，使得开口端至底壁的距离H4、轴承与底壁之间的距离H5满足：
Figure PCTCN2022082570-appb-000007
即，限定了第一轴承座和轴承的配合结构，及限定了第二轴承座和轴 承的配合结构。也即，限定了用于容置弹性垫圈和轴承的配合尺寸。该设置能够有效减缓作用于轴承的作用力，保证产品使用的减振、降噪效果。
若，
Figure PCTCN2022082570-appb-000008
则，用于容置弹性垫圈的空间较小，即弹性垫圈的预变形量越大，则，易出现弹性垫圈将轴承顶出第一轴承座或者端盖与外壳的配合松动的情况，无法保证产品使用的安全性及可靠性。
若，
Figure PCTCN2022082570-appb-000009
则，用于容置弹性垫圈的空间较大，即弹性垫圈预变形量小，则，弹性垫圈工作时形变幅度较小，会减弱减振、降噪效果。
具体地，
Figure PCTCN2022082570-appb-000010
的值包括：0.08、0.1、0.15和0.18等等，在此不一一例举。
在上述任一技术方案中，进一步地，筒部与盖部一体形成。
在该技术方案中，筒部与盖部一体形成，该结构设置由于省去了筒部与盖部的装配工序，故而简化了筒部与盖部的装配及后续拆卸的工序，有利于提升装配及拆卸效率，进而可降低生产及维护成本。另外，筒部与盖部一体形成可保证壳本体成型的尺寸精度要求。
在上述任一技术方案中，进一步地，沿垂直于电机的轴向对电机进行截面，在截面中，定子的定子铁芯的外轮廓线记作第一轮廓线，连接部的外轮廓线记作第二轮廓线；第一轮廓线上的任意两点之间的最大距离D1、汇流排中的第二轮廓线上的任意两点之间的最大距离D2满足：D2≤D1。
在该技术方案中，合理设置定子铁芯、汇流排的连接部的配合结构，使得在截面中，定子的定子铁芯的外轮廓线记作第一轮廓线，连接部的外轮廓线记作第二轮廓线。并限定第一轮廓线和第二轮廓线的配合尺寸，具体地，汇流排中的第二轮廓线上的任意两点之间的最大距离D2，小于等于第一轮廓线上的任意两点之间的最大距离D1。
该设置能够保证定子铁芯和汇流排的配合尺寸，进而可保证定子和汇流排的有效配合。
若D2大于D1，则，易出现外壳与汇流排干涉的情况，无法保证电机装配的稳定性及可靠性。
可以理解的是，定子的定子铁芯的外轮廓线合围出的形状为圆形。那么，第一轮廓线上的任意两点之间的最大距离为定子铁芯的外径。
或者，定子铁芯的外轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
可以理解的是，多个连接部的外轮廓线合围出的形状为圆形。
或者，多个连接部的外轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
在上述任一技术方案中，进一步地，基座的形状为环形，电机还包括转子，转子可转动地设置在定子内部；转子与第二轴承座之间具有间隙；沿垂直于电机的轴向对电机进行截面，在截面中，基座的内轮廓线记作第三轮廓线，定子的定子铁芯的内轮廓线记作第四轮廓线，转子的外轮廓线记作第五轮廓线；第三轮廓线上的任意两点之间的最大距离D3、第四轮廓线上的任意两点之间的最大距离D4和第五轮廓线上的任意两点之间的最大距离D5满足：D5＜D4≤D3。
在该技术方案中，基座的形状为环形，电机还包括转子，转子可转动地设置在定子内部。通过合理设置定子和转子的配合结构，使得在截面中，基座的内轮廓线记作第三轮廓线，定子的定子铁芯的内轮廓线记作第四轮廓线，转子的外轮廓线记作第五轮廓线。
并限定第三轮廓线、第四轮廓线和第五轮廓线的配合尺寸，具体地，第三轮廓线上的任意两点之间的最大距离D3、第四轮廓线上的任意两点之间的最大距离D4和第五轮廓线上的任意两点之间的最大距离D5满足：D5＜D4≤D3。
该设置能够保证铁芯、转子和汇流排的配合尺寸，进而可保证定子和转子的有效配合。
若，D3小于D4，或者D3小于D5，则，定子和转子装配时会发生干涉，无法保证电机有效装配。
可以理解的是，基座的内轮廓线合围出的形状为圆形。那么，第三轮廓线上的任意两点之间的最大距离D3为基座的内径。
或者，基座的内轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
可以理解的是，定子的定子铁芯的内轮廓线合围出的形状为圆形。那 么，第四轮廓线上的任意两点之间的最大距离为定子铁芯的内径。
或者，定子铁芯的内轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
可以理解的是，转子的外轮廓线合围出的形状为圆形。那么，第五轮廓线上的任意两点之间的最大距离为转子的外径。
或者，转子的外轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
在上述任一技术方案中，进一步地，电机包括助力转向电机。
本申请的第二方面提出了一种电动助力转向***，包括：如第一方面中任一技术方案的电机。
本申请提供的电动助力转向***因包括如第一方面中任一技术方案的电机，因此具有上述电机的全部有益效果，在此不做一一陈述。
本申请的第三方面提出了一种车辆，包括：如第一方面中任一技术方案的电机；或如第二方面中的电动助力转向***。
本申请提供的车辆因包括如第一方面中任一技术方案的电机，或如第二方面中的电动助力转向***，因此具有上述电机或电动助力转向***的全部有益效果，在此不做一一陈述。
具体地，本申请提出的车辆可以为传统的燃油车，也可以为新能源汽车。其中，新能源汽车包括纯电动汽车、增程式电动汽车、混合动力汽车、燃料电池电动汽车、氢发动机汽车等。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1示出了本申请的一个实施例的电机的第一视角的结构示意图；
图2为图1的A处局部放大图；
图3为图1的B处局部放大图；
图4示出了本申请的一个实施例的电机的第一视角的结构示意图；
图5示出了本申请的一个实施例的电动助力转向***的结构示意图。
其中，图1至图5中的附图标记与部件名称之间的对应关系为：
100电机，110外壳，112第一壁面，114第二壁面，116壳本体，118端盖，120盖板，122第一轴承座，124筒部，126盖部，128第二轴承座，130汇流排，132基座，134汇流条，136连接部，138避让部，139定子，140定子铁芯，142绕组，143绕组引出线的端部，144绝缘框架，150轴承，160弹性垫圈，170电机轴，300电动助力转向***，310转向盘，320车轮，330车轴，340转向轴。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图5描述根据本申请一些实施例的电机100、电动助力转向***300和车辆。
实施例1：
如图1、图2和图3所示，本申请第一方面的实施例提出了一种电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
详细地，电机100包括外壳110和定子139。外壳110包括第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。汇流排130包括底座和多个汇流条134，多个汇流条134中的任一汇流条134连接基座132，汇流条134包括连接部136，连接部136用于连接绕组引出线。
通过合理设置外壳110和定子139的配合结构，使得基座132相对于第一壁面112更靠近第二壁面114，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。即，在电机100的轴向方向上，对外壳110和定子139的配合尺寸进行了限定。
具体地，如图1和图2所示，基座132朝向第二壁面114的一端，相较于绕组142和连接部136更靠近第二壁面114，通过基座132与外壳110的配合结构，在保证绕组142和连接部136的安全距离的同时，有利于减小绕组142、连接部136和外壳110的第二壁面114之间的配合尺寸。
这样在保证电机100电气安全距离的前提下使得电机100内部结构更紧凑，从而提高产品的安全可靠性，有利于减小电机100体积及重量，提高电机100的适配性，有利于降低电机100的生产成本。
这样在保证电机100电气安全距离的前提下使得电机100内部结构更紧凑，从而提高产品的安全可靠性，有利于减小电机100体积及重量，提高电机100的适配性，有利于降低电机100的生产成本。
若，绕组引出线的端部位于基座132朝向第二壁面114的一端和第二壁面114之间，即与本专利保护的形式相比，绕组引出线需要朝向第二壁面114一侧伸出更长的距离，则，要保证绕组引出线的端部143的安全距离的话，就会使第二壁面114随之移动，那么就会增大电机100的整机外形尺寸，且会增大电机100的重量。
另外，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。该设置可保证绕组142不会与外壳110的第二壁面114接触，也即，绕组142不会干涉第二壁面114。这样，在保证电机100装配的有效性的同时，能够降低对产品装配的精度要求，有利于提升装配效率，及有利于进一步降低产品的生产成本。
可以理解的是，基座132为绝缘件，基座132用于对汇流条134提供支撑作用并且将多个汇流条134中相邻的汇流条134进行隔离，起到电性绝缘的作用。汇流条134为导体，汇流条134用于连接绕组142中需要连接在一起的多个绕组142端部，进而实现多个绕组142端部的电性连接，实现汇流功能。
可以理解的是，基座132为绝缘件，基座132用于对汇流条134提供支撑作用并且将多个汇流条134中相邻的汇流条134进行隔离，起到电性绝缘的作用。汇流条134为导体，汇流条134用于连接绕组142中需要连接在一起的多个绕组142端部，进而实现多个绕组142端部的电性连接，实现汇流功能。
实施例2：
如图1、图2和图3所示，在实施例1的基础上，实施例2提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3 ＜H2＜H1。
进一步地，如图1和图2所示，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面的距离H2满足：
Figure PCTCN2022082570-appb-000011
详细地，通过合理设置汇流排130的连接部136和外壳110的第二壁面114的配合结构，使得连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2满足：
Figure PCTCN2022082570-appb-000012
能保护汇流功能的有效性及可行性。
在满足产品使用的安全距离要求的前提下：
若，
Figure PCTCN2022082570-appb-000013
则，增大了容置汇流排130的基座132的空间，是对空间的浪费，这样，会增大电机100的外形尺寸，及增大电机100的重量，生产成本高。
若，
Figure PCTCN2022082570-appb-000014
则，用于容置汇流排130的基座132的空间被缩小，易发生汇流排130的基座132和第二壁面114干涉的情况。
具体地，
Figure PCTCN2022082570-appb-000015
的值包括：0.4、0.5、0.6、0.7和0.8等等，在此不一一例举。
实施例3：
如图1、图2和图3所示，在实施例1的基础上，实施例3提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3 ＜H2＜H1。
进一步地，如图1和图3所示，定子139还包括绝缘框架144，汇流排130与绝缘框架144连接。
绕组142至第一壁面112的距离L1、绝缘框架144至第一壁面112的距离L2满足：L2＜L1。
详细地，定子139还包括绝缘框架144，通过限定绕组142、外壳110和绝缘框架144的配合结构，使得绝缘框架144至第一壁面112的距离L2小于绕组142至第一壁面112的距离L1。绕组142的端面不会凸伸出绝缘框架144的端面，绝缘框架144具有保护绕组142的作用，使得即使由于误操作而缩小外壳110和绕组142之间的装配空间时，也是绝缘框架144先于绕组142与外壳110发生干涉，而不会发生绕组142与外壳110干涉的情况，有利于提升产品使用的安全性及可靠性。
另外，绝缘框架144和绕组142均与第一壁面112具有间隙，为保证电机100使用的安全性及可靠性提供了结构支撑。
可以理解的是，由于绝缘框架144包括相对设置的两个绝缘部，两个绝缘部位于定子铁芯140的相对两侧，两个绝缘部与定子铁芯140和绕组142的配合尺寸相同或近似相同。若，绝缘框架144至第一壁面112的距离L2大于等于绕组142至第一壁面112的距离L1，则，意味着绕组142的端面凸伸出绝缘框架144的端面，那么，在装配绝缘框架144和汇流排130时，绕组142会与汇流排130发生干涉，那么就无法保证汇流排130与绝缘框架144的配合尺寸。
实施例4：
如图1、图2和图3所示，在实施例1的基础上，实施例4提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
进一步地，如图1所示，外壳110包括壳本体116和端盖118。
端盖118与壳本体116连接，端盖118包括盖板120和第一轴承座122，盖板120与壳本体116连接，盖板120的一部分形成第二壁面114。
第一轴承座122与盖板120朝向第一壁面112的一侧连接。
详细地，外壳110包括壳本体116和端盖118，端盖118与壳本体116连接。端盖118包括盖板120和第一轴承座122，第一轴承座122与盖板120朝向第一壁面112的一侧连接，盖板120具有支撑和固定第一轴承座122的作用，第一轴承座122具有固定轴承150的作用。
具体地，端盖118的至少一部分位于外壳110内，端盖118位于外壳110内的部分与第一壁段过盈配合。该设置避免了相关技术中用于紧固外壳110和端盖118的紧固件的投入，有利于简化外壳110和端盖118的拆装工序，有利于提升产品的拆装效率，有利于降低产品的生产成本。
另外，端盖118位于外壳110内的部分与外壳110过盈配合，该设置能够保证端盖118和外壳110有机结合为一个整体，不会出现端盖118松动甚至是弹出于外壳110的情况发生，为保证产品使用的安全性及可靠性提供了有效的结构支撑。
其中，外壳110的内表面包括第一配合壁和第二配合壁，第一配合壁和第二配合壁均绕电机100的轴线布置，第二配合壁连接于第一配合壁的第一侧，第二配合壁至外壳110的外表面的距离，大于第一配合壁至外壳110的外表面的距离，端盖118位于外壳110内的部分与第一配合壁过盈配合。第二配合壁连接于第一配合壁的第一侧。第二配合壁至外壳110的外表面的距离，大于第一配合壁至外壳110的外表面的距离。也即，外壳110在第二配合壁处的部分的厚度，大于外壳110在第一配合壁处的部分 的厚度。第一配合壁和第二配合壁之间能够形成台阶结构，第二配合壁能够沿电机100的轴向阻挡端盖118，也就是说，第二配合壁具有沿电机100的轴向限位端盖118的作用，能够保证外壳110和端盖118的配合尺寸，进而可保证端盖118与外壳110内的其他器件的配合尺寸，以保证电机100使用的安全性。
实施例5：
如图1、图2和图3所示，在实施例4的基础上，实施例5提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
外壳110包括壳本体116和端盖118。
端盖118与壳本体116连接，端盖118包括盖板120和第一轴承座122，盖板120与壳本体116连接，盖板120的一部分形成第二壁面114。
第一轴承座122与盖板120朝向第一壁面112的一侧连接。
进一步地，如图1所示，基座132设有避让部138，第一轴承座122的至少一部分能够***避让部138内。
详细地，通过合理设置基座132的结构，使得基座132设有避让部138，第一轴承座122的至少一部分能够***避让部138内。也即，限定了第一轴承座122和避让部138的配合结构。该设置在保证外壳110和汇流排130装配的有效性的同时，能够在电机100的轴向上减小电机100的整机尺寸， 进而有利于减小电机100的重量，有利于降低产品的生产成本。
进一步地，避让部138包括避让孔。
其中，避让部138包括避让孔，外壳110和汇流排130装配后，第一轴承座122的至少一部分能够***避让孔内。
进一步地，避让部138包括避让槽。
其中，避让部138包括避让槽，外壳110和汇流排130装配后，第一轴承座122的至少一部分能够***避让槽内。
具体地，如图1所示，基座132的一部分朝向第一壁面112的方向凹陷以形成避让槽。
实施例6：
如图1、图2和图3所示，在实施例4的基础上，实施例6提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
外壳110包括壳本体116和端盖118。
端盖118与壳本体116连接，端盖118包括盖板120和第一轴承座122，盖板120与壳本体116连接，盖板120的一部分形成第二壁面114。
第一轴承座122与盖板120朝向第一壁面112的一侧连接。
进一步地，第一轴承座122位于基座132的一侧。
详细地，第一轴承座122位于基座132的一侧，即，限定了第一轴承 座122和基座132的配合结构。第一轴承座122和基座132的配合结构，为第二壁面114、连接部136及绕组142的配合结构提供了有效且可靠的结构支撑。
进一步地，如图1和图3所示，定子139的定子铁芯140与第一轴承座122之间具有间隙。
其中，定子139包括定子铁芯140，通过限定定子铁芯140和第一轴承座122的配合结构，使得定子139的定子铁芯140与第一轴承座122之间具有间隙，该设置为绕组142与定子铁芯140有效配合，及绕组142与第一轴承座122的有效配合提供了结构支撑。
若，定子139的定子铁芯140与第一轴承座122相抵靠，那么，导致绕组142的容置空间被压缩，无法保证绕组142与定子铁芯140的有效装配。
实施例7：
如图1、图2和图3所示，在实施例4的基础上，实施例7提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
外壳110包括壳本体116和端盖118。
端盖118与壳本体116连接，端盖118包括盖板120和第一轴承座122，盖板120与壳本体116连接，盖板120的一部分形成第二壁面114。
第一轴承座122与盖板120朝向第一壁面112的一侧连接。
进一步地，如图1所示，壳本体116包括筒部124、盖部126和第二轴承座128。
筒部124与端盖118连接。
盖部126与筒部124连接，盖部126的一部分形成第一壁面112。
第二轴承座128，设于盖部126朝向第二壁面114的一侧。
其中，定子139的定子铁芯140与第二轴承座128之间具有间隙。
详细地，壳本体116包括筒部124和盖部126，盖部126与筒部124连接，端盖118与筒部124连接，盖部126的一部分形成第一壁面112，端盖118的一部分形成第二壁面114，盖部126与端盖118对应设置。
另外，第二轴承座128设于盖部126朝向第二壁面114的一侧，盖部126具有支撑和固定第二轴承座128的作用，第二轴承座128具有固定轴承150的作用。
进一步地，转子的转子铁芯与第二轴承座128之间具有间隙，该设置为转子铁芯与第二轴承座128之间的提供了电气安全性能及第二轴承可靠性保证。
若，转子的转子铁芯与第二轴承座128相抵靠，那么，由于转子铁芯的端部漏磁现象，会使第二轴承座128及第二轴承附带磁性，从而影响第二轴承的可靠性，进而增大电机100的摩擦转矩，降低电机100的性能。
进一步地，如图1所示，第一轴承座122内设有轴承150和弹性垫圈160。
第一轴承座122与弹性垫圈160的第一端连接，轴承150连接弹性垫圈160的第二端。
轴承150连接电机100的电机轴170。
其中，第一轴承座122内设有轴承150和弹性垫圈160，第一轴承座122与弹性垫圈160的第一端连接，轴承150连接弹性垫圈160的第二端。也就是说，第一轴承座122与轴承150及弹性垫圈160配合连接。弹性垫圈160能够减缓作用于轴承150和第一轴承座122的作用力，该设置能够起到减振的作用，具有降噪的效果。
可以理解的是，轴承150连接电机100的电机轴170，即，轴承150套设于电机轴170。
进一步地，如图1所示，第一轴承座122和第二轴承座128均具有开口端和底壁。
开口端至底壁的距离H4、轴承150与底壁之间的距离H5满足：
Figure PCTCN2022082570-appb-000016
其中，第一轴承座122具有开口端和底壁，第二轴承座128具有开口端和底壁，开口端与底壁对应设置。通过合理设置第一轴承座122和第二轴承座128的结构，使得开口端至底壁的距离H4、轴承150与底壁之间的距离H5满足：
Figure PCTCN2022082570-appb-000017
即，限定了第一轴承座122和轴承150的配合结构，及限定了第二轴承座128和轴承150的配合结构。也即，限定了用于容置弹性垫圈160和轴承150的配合尺寸。该设置能够有效减缓作用于轴承150和轴承150座的作用力，保证产品使用的减振、降噪效果。
若，
Figure PCTCN2022082570-appb-000018
则，用于容置弹性垫圈160的空间较小，即弹性垫圈160的预变形量越大，则，易出现弹性垫圈160将轴承150顶出第一轴承座122或者端盖118与外壳110的配合松动的情况，无法保证产品使用的安全性及可靠性。
若，
Figure PCTCN2022082570-appb-000019
则，用于容置弹性垫圈160的空间较大，即弹性垫圈160预变形量小，则，弹性垫圈160工作时形变幅度较小，会减弱减振、降噪效果。
具体地，
Figure PCTCN2022082570-appb-000020
的值包括：0.08、0.1、0.15和0.18等等，在此不一一例举。
进一步地，筒部124与盖部126一体形成。
其中，筒部124与盖部126一体形成，该结构设置由于省去了筒部124与盖部126的装配工序，故而简化了筒部124与盖部126的装配及后续拆卸的工序，有利于提升装配及拆卸效率，进而可降低生产及维护成本。另外，筒部124与盖部126一体形成可保证壳本体116成型的尺寸精度要求。
实施例8：
如图1、图2和图3所示，在实施例1的基础上，实施例8提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
进一步地，如图4所示，沿垂直于电机100的轴向对电机100进行截面。
在截面中，定子139的定子铁芯140的外轮廓线记作第一轮廓线，连接部136的外轮廓线记作第二轮廓线。
第一轮廓线上的任意两点之间的最大距离D1、汇流排130中的第二轮廓线上的任意两点之间的最大距离D2满足：D2≤D1。
详细地，合理设置定子铁芯140、汇流排130的连接部136的配合结构，使得在截面中，定子139的定子铁芯140的外轮廓线记作第一轮廓线，连接部136的外轮廓线记作第二轮廓线。并限定第一轮廓线和第二轮廓线的配合尺寸，具体地，汇流排130中的第二轮廓线上的任意两点之间的最大距离D2，小于等于第一轮廓线上的任意两点之间的最大距离D1。
该设置能够保证定子铁芯140和汇流排130的配合尺寸，进而可保证定子139和汇流排130的有效配合。
若D2大于D1，则，易出现外壳110与汇流排130干涉的情况，无法保证电机100装配的稳定性及可靠性。
可以理解的是，定子139的定子铁芯140的外轮廓线合围出的形状为圆形。那么，第一轮廓线上的任意两点之间的最大距离为定子铁芯140的外径。
或者，定子铁芯140的外轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
可以理解的是，多个连接部136的外轮廓线合围出的形状为圆形。
或者，多个连接部136的外轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
实施例9：
如图1、图2和图3所示，在实施例1的基础上，实施例9提供了一种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
进一步地，如图4所示，基座132的形状为环形，电机100还包括转子，转子可转动地设置在定子139内部；转子与第二轴承座128之间具有间隙。
沿垂直于电机100的轴向对电机100进行截面。
在截面中，基座132的内轮廓线记作第三轮廓线，定子139的定子铁芯140的内轮廓线记作第四轮廓线，转子的外轮廓线记作第五轮廓线。
第三轮廓线上的任意两点之间的最大距离D3、第四轮廓线上的任意两 点之间的最大距离D4和第五轮廓线上的任意两点之间的最大距离D5满足：D5＜D4≤D3。
详细地，基座132的形状为环形，电机100还包括转子，转子可转动地设置在定子139内部。通过合理设置定子139和转子的配合结构，使得在截面中，基座132的内轮廓线记作第三轮廓线，定子139的定子铁芯140的内轮廓线记作第四轮廓线，转子的外轮廓线记作第五轮廓线。
并限定第三轮廓线、第四轮廓线和第五轮廓线的配合尺寸，具体地，第三轮廓线上的任意两点之间的最大距离D3、第四轮廓线上的任意两点之间的最大距离D4和第五轮廓线上的任意两点之间的最大距离D5满足：D5＜D4≤D3。
该设置能够保证铁芯、转子和汇流排130的配合尺寸，进而可保证定子139和转子的有效配合。
若，D3小于D4，或者D3小于D5，则，定子139和转子装配时会发生干涉，无法保证电机100有效装配。
可以理解的是，基座132的内轮廓线合围出的形状为圆形。那么，第三轮廓线上的任意两点之间的最大距离D3为基座132的内径。
或者，基座132的内轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
可以理解的是，定子139的定子铁芯140的内轮廓线合围出的形状为圆形。那么，第四轮廓线上的任意两点之间的最大距离为定子铁芯140的内径。
或者，定子铁芯140的内轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
可以理解的是，转子的外轮廓线合围出的形状为圆形。那么，第五轮廓线上的任意两点之间的最大距离为转子的外径。
或者，转子的外轮廓线合围出的形状为异形，其中，异形指的是形状不规则的结构。
实施例10：
如图1、图2和图3所示，在实施例1的基础上，实施例10提供了一 种电机100，电机100包括外壳110和定子139。
外壳110的内表面具有第一壁面112和第二壁面114，在电机100的轴向方向上，第一壁面112位于第二壁面114的一侧。
定子139，设于外壳110内，定子139包括：汇流排130和绕组142。
汇流排130设于外壳110内，汇流排130包括基座132和多个汇流条134，汇流条134设于基座132上，汇流条134包括连接部136。
基座132相对于第一壁面112更靠近第二壁面114，且基座132与第二壁面114之间具有间隙。
绕组142具有绕组线圈及绕组引出线，绕组引出线与连接部136连接。
其中，连接部136至第二壁面114的距离H1、绕组引出线的端部143至第二壁面114的距离H2及基座132至第二壁面114的距离H3满足：H3＜H2＜H1。
具体地，电机100包括助力转向电机。
实施例11：
如图5所示，本申请第二方面的实施例提出了一种电动助力转向***300，包括：如第一方面中任一实施例的电机100。
本申请提供的电动助力转向***300因包括如第一方面中任一实施例的电机100，因此具有上述电机100的全部有益效果，在此不做一一陈述。
其中，电动助力转向***300(Electric Power Steering，缩写EPS)是一种直接依靠电机100提供辅助扭矩的动力转向***，与传统的液压助力转向***HPS(Hydraulic Power Steering)相比，EPS***的结构简单，装配灵活，既能节省能源，又能保护环境，现代车辆大多数的车型基本都配备了EPS***。
其中，电动助力转向***300包括多种可实现的方式。其中，以下将对多种可实现的方式中的一种方式进行具体说明。具体地，在一种可实施的方式中，电动助力转向***300搭载于汽车的车轮320的转向机构。
本实施方式的电动助力转向***300是通过电机100的动力直接减轻转向力的柱式的助力转向***。电动助力转向***300包括电机100、转向轴340和车轴330。
转向轴340将来自转向盘310的输入传递至具有车轮320的车轴330。电机100的动力经由滚珠丝杠而传递至车轴330。柱式的电动助力转向***300所采用的电机100设置于发动机室的内部。另外，本申请的电动助力转向***300不限于柱式，也可以是齿条式等。
实施例12：
本申请第三方面的实施例提出了一种车辆，包括：如第一方面中任一实施例的电机100，或如第二方面中的电动助力转向***300。
本申请提供的车辆因包括如第一方面中任一实施例的电机，或如第二方面中的电动助力转向***，因此具有上述电机或电动助力转向***的全部有益效果，在此不做一一陈述。
具体地，本申请提出的车辆可以为传统的燃油车，也可以为新能源汽车。其中，新能源汽车包括纯电动汽车、增程式电动汽车、混合动力汽车、燃料电池电动汽车、氢发动机汽车等。
实施例13：
电机100包括外壳110、轴承150、弹性垫圈160、转子、定子139，外壳110包括壳本体116和端盖118。
外壳110收纳转子和定子139。壳本体116具有筒部124和盖部126。
盖部126位于定子139的轴向第一侧。筒部124从盖部126的径向外缘部向轴向第二侧延伸。
盖部126具有第二轴承座128。
端盖118被壳本体116支承于轴向第二侧，其中心具有沿轴向延伸的第一轴承座122。轴承150的数量为两个，第一轴承座122和第二轴承座128均设置有一个轴承150。
转子具有沿中心轴线配置的轴。轴上套设有转子铁芯。
定子139隔着间隙与转子径向对置。定子139包括：环状的定子铁芯140、由多段定子139单元拼接形成绝缘框架144和安装于绝缘框架144的绕组142。绕组142与汇流排130连接。
汇流排130具有多个汇流条134和基座132。汇流条134包括连接部136。连接部136至第二壁面114的距离H1、绕组引出线的端部143至第 二壁面114的距离H2满足：
Figure PCTCN2022082570-appb-000021
在本申请中，术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种电机，其中，包括：
    外壳，所述外壳的内表面具有第一壁面和第二壁面，在所述电机的轴向方向上，所述第一壁面位于所述第二壁面的一侧；
    定子，设于所述外壳内，所述定子包括：
    汇流排，设于所述外壳内，所述汇流排包括基座和多个汇流条，所述汇流条设于所述基座上，所述汇流条包括连接部，所述基座相对于所述第一壁面更靠近所述第二壁面，且所述基座与所述第二壁面之间具有间隙；
    绕组，所述绕组具有绕组线圈及绕组引出线，所述绕组引出线与所述连接部连接；
    其中，所述连接部至所述第二壁面的距离H1、所述绕组引出线的端部至所述第二壁面的距离H2及所述基座至所述第二壁面的距离H3满足：H3＜H2＜H1。
  2. 根据权利要求1所述的电机，其中，
    所述连接部至所述第二壁面的距离H1、所述绕组引出线的端部至所述第二壁面的距离H2满足：
    Figure PCTCN2022082570-appb-100001
  3. 根据权利要求1或2所述的电机，其中，
    所述定子还包括绝缘框架，所述汇流排与所述绝缘框架连接；
    所述绕组背离所述引出线的一端至所述第一壁面的距离L1、所述绝缘框架至所述第一壁面的距离L2满足：L2＜L1。
  4. 根据权利要求1或2所述的电机，其中，所述外壳包括：
    壳本体；
    端盖，与所述壳本体连接，所述端盖包括盖板和第一轴承座，所述盖板与所述壳本体连接，所述盖板的一部分形成所述第二壁面，所述第一轴承座与所述盖板朝向所述第一壁面的一侧连接。
  5. 根据权利要求4所述的电机，其中，
    所述基座设有避让部，所述第一轴承座的至少一部分能够***所述避 让部内。
  6. 根据权利要求5所述的电机，其中，
    所述避让部包括避让孔或避让槽。
  7. 根据权利要求4所述的电机，其中，
    所述第一轴承座位于所述基座的一侧；和/或
    所述定子的定子铁芯与所述第一轴承座之间具有间隙。
  8. 根据权利要求4所述的电机，其中，所述壳本体包括：
    筒部，与所述端盖连接；
    盖部，与所述筒部连接，所述盖部的一部分形成所述第一壁面；
    第二轴承座，设于所述盖部朝向所述第二壁面的一侧；
    其中，所述定子的定子铁芯与所述第二轴承座之间具有间隙。
  9. 根据权利要求8所述的电机，其中，
    所述第一轴承座内设有轴承和弹性垫圈，所述第一轴承座与所述弹性垫圈的第一端连接，所述轴承连接所述弹性垫圈的第二端；
    其中，所述轴承连接所述电机的电机轴。
  10. 根据权利要求9所述的电机，其中，
    所述第一轴承座和所述第二轴承座均具有开口端和底壁；
    所述开口端至所述底壁的距离H4、所述轴承与所述底壁之间的距离H5满足：
    Figure PCTCN2022082570-appb-100002
  11. 根据权利要求8所述的电机，其中，
    所述筒部与所述盖部一体形成。
  12. 根据权利要求1或2所述的电机，其中，
    沿垂直于所述电机的轴向对所述电机进行截面，在截面中，所述定子的定子铁芯的外轮廓线记作第一轮廓线，所述连接部的外轮廓线记作第二轮廓线；
    所述第一轮廓线上的任意两点之间的最大距离D1、所述汇流排中的所述第二轮廓线上的任意两点之间的最大距离D2满足：D2≤D1。
  13. 根据权利要求8所述的电机，其中，
    所述基座的形状为环形，所述电机还包括转子，所述转子可转动地设 置在所述定子内部；所述转子与所述第二轴承座之间具有间隙；
    沿垂直于所述电机的轴向对所述电机进行截面，在截面中，所述基座的内轮廓线记作第三轮廓线，所述定子的定子铁芯的内轮廓线记作第四轮廓线，所述转子的外轮廓线记作第五轮廓线；
    所述第三轮廓线上的任意两点之间的最大距离D3、所述第四轮廓线上的任意两点之间的最大距离D4和所述第五轮廓线上的任意两点之间的最大距离D5满足：D5＜D4≤D3。
  14. 根据权利要求1或2所述的电机，其中，
    所述电机包括助力转向电机。
  15. 一种电动助力转向***，其中，包括：
    如权利要求1至14中任一项所述的电机。
  16. 一种车辆，其中，包括：
    如权利要求1至14中任一项所述的电机；或
    如权利要求15所述的电动助力转向***。
PCT/CN2022/082570 2021-12-09 2022-03-23 电机、电动助力转向***和车辆 WO2023103223A1 (zh)

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CN202111500727.2 2021-12-09
CN202123085058.5U CN217115814U (zh) 2021-12-09 2021-12-09 电机、电动助力转向***和车辆

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013102596A (ja) * 2011-11-08 2013-05-23 Mitsuba Corp バスバーユニットおよびブラシレスモータ
WO2013164082A2 (de) * 2012-05-03 2013-11-07 Sew-Eurodrive Gmbh & Co. Kg Elektromotor und verfahren zum herstellen eines elektromotors
CN209608462U (zh) * 2018-02-19 2019-11-08 日本电产株式会社 马达
CN112583171A (zh) * 2019-09-30 2021-03-30 日本电产株式会社 定子和马达
CN113162335A (zh) * 2020-01-22 2021-07-23 日本电产株式会社 马达

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013102596A (ja) * 2011-11-08 2013-05-23 Mitsuba Corp バスバーユニットおよびブラシレスモータ
WO2013164082A2 (de) * 2012-05-03 2013-11-07 Sew-Eurodrive Gmbh & Co. Kg Elektromotor und verfahren zum herstellen eines elektromotors
CN209608462U (zh) * 2018-02-19 2019-11-08 日本电产株式会社 马达
CN112583171A (zh) * 2019-09-30 2021-03-30 日本电产株式会社 定子和马达
CN113162335A (zh) * 2020-01-22 2021-07-23 日本电产株式会社 马达

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