WO2025001380A1 - 槽绝缘纸、定子、轴向电机、电驱总成及驱动设备 - Google Patents

槽绝缘纸、定子、轴向电机、电驱总成及驱动设备 Download PDF

Info

Publication number
WO2025001380A1
WO2025001380A1 PCT/CN2024/084873 CN2024084873W WO2025001380A1 WO 2025001380 A1 WO2025001380 A1 WO 2025001380A1 CN 2024084873 W CN2024084873 W CN 2024084873W WO 2025001380 A1 WO2025001380 A1 WO 2025001380A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
slot
main body
section
segment
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2024/084873
Other languages
English (en)
French (fr)
Inventor
陈乾来
向斌
夏继
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Contemporary Amperex Intelligence Technology Shanghai Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Contemporary Amperex Intelligence Technology Shanghai Ltd
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 Contemporary Amperex Technology Co Ltd, Contemporary Amperex Intelligence Technology Shanghai Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of WO2025001380A1 publication Critical patent/WO2025001380A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

Definitions

  • the present application belongs to the field of motor technology, and more specifically, relates to a slot insulation paper, a stator, an axial motor, an electric drive assembly and a drive device.
  • Axial motors have gained increasing attention due to their compact structure, high efficiency, and high power density.
  • Insulating paper wrapped windings are arranged in the stator slots of axial motors to ensure good insulation between the windings and the stator core.
  • the purpose of the embodiments of the present application is to provide a slot insulation paper, a stator, an axial motor, an electric drive assembly and a drive device to solve the problem of inconvenient installation when insulating paper is provided in the stator slot of the axial motor in the related art.
  • an embodiment of the present application provides a slot insulation paper, comprising:
  • the main body, the middle portion in the width direction can be bent toward one side in the thickness direction for being placed in the stator slot of the stator;
  • a first covering portion is provided at one end of the main body in the width direction and extends toward one side in the thickness direction of the main body;
  • a second covering portion is provided at the other end in the width direction of the main body and extends toward one side in the thickness direction of the main body;
  • a first folding portion is disposed between the main body and the first covering portion and extends toward the other side in the thickness direction of the main body;
  • the second folding portion is arranged between the main body and the second covering portion, and is extended toward the other side in the thickness direction of the main body.
  • the sum of the widths of the first covering portion and the second covering portion is greater than or equal to the width of the stator slot.
  • the first covering portion and the second covering portion can cooperate to completely cover one side of the winding close to the slot opening of the stator slot to improve the insulation performance.
  • the difference between the sum of the widths of the first covering portion and the second covering portion and the width of the stator slot is greater than or equal to 1 mm.
  • the overlapping length of the first covering portion and the second covering portion can be greater than or equal to 1 mm, so as to improve the insulation performance.
  • the main body includes a first segment, a second segment and a bent segment, the bent segment is bent toward one side in the thickness direction of the main body, the bent segment is used to guide the first segment and the second segment into the stator slot, the first segment is arranged opposite to the second segment, The two ends of the curved section are respectively connected to the first section and the second section, the first folded portion is connected to one end of the first section away from the curved section, and the second folded portion is connected to one end of the second section away from the curved section.
  • the bent section when inserting the main body into the stator slot, the bent section can be inserted first, and the first section and the second section can be guided to be inserted into the stator slot for installation.
  • the curved segment is arc-shaped, or the curved segment includes a plurality of fold line segments connected in sequence.
  • the curved section is arranged in an arc shape, which can be easily processed and manufactured to guide the first section and the second section to enter the stator slot.
  • the curved section is provided with a plurality of folding line segments connected in sequence, which can be easily processed and manufactured.
  • the curved segment includes a first subsegment and a second subsegment arranged obliquely to the first subsegment, the first subsegment is connected to the second subsegment, the first segment is connected to the first subsegment, and the second segment is connected to the second subsegment.
  • the bending section also includes a first guide section and a second guide section, the first guide section connects the first sub-section and the first section, and the first guide section and the first sub-section are bent at an obtuse angle; the second guide section connects the second sub-section and the second section, and the second guide section and the second sub-section are bent at an obtuse angle.
  • a first guide segment and a second guide segment are provided.
  • the inclination angles between the first guide segment and the second guide segment and the side wall of the stator slot can be made smaller, so as to enter the stator slot and reduce scratches on the first guide segment and the second guide segment.
  • the first sub-segment is connected to the second sub-segment through an arc segment transition.
  • the arc segment is provided to reduce the crease damage at the connection between the first sub-segment and the second sub-segment, so as to improve the insulation performance of the slot insulation paper.
  • the body is a unitary structure.
  • the main body is formed in one piece to facilitate processing and manufacturing and to improve the insulation performance of the main body.
  • the slot insulation paper is an integrally formed structure.
  • the slot insulation paper is formed in one piece, which can facilitate production and improve the overall insulation performance of the slot insulation paper.
  • the first covering portion is bent and extended from one end of the first folding portion away from the main body;
  • the second covering portion is extended by bending from one end of the second folding portion away from the main body;
  • the first folding portion is bent and extended from one end of the main body
  • the second folding portion is bent and extended from the other end of the main body.
  • One end portion of the first folded portion is bent to form a first covering portion, which is convenient for processing and manufacturing.
  • One end portion of the second folded portion is bent to form a second covering portion, which is convenient for processing and manufacturing.
  • One end of the main body is bent to form a first folded portion for easy processing and manufacturing.
  • the other end of the main body is bent to form a first folded portion for easy processing and manufacturing.
  • the first folded portion is connected to the main body via an arc-shaped transition
  • the second folded portion is connected to the main body via an arc-shaped transition
  • the first covering portion and the first folding portion are connected via an arc-shaped transition
  • the second covering portion is connected to the second folding portion via an arc-shaped transition.
  • the first folded portion transitions to the main body in an arc shape, which can reduce crease damage and improve the insulation performance of the slot insulation paper.
  • the second folded portion transitions to the main body in an arc shape, which can reduce crease damage and improve the insulation performance of the slot insulation paper.
  • the first covering portion transitions to the first folding portion in an arc shape, which can reduce crease damage and improve the insulation performance of the slot insulation paper.
  • the second covering portion transitions to the second folded portion in an arc shape, which can reduce crease damage and improve the insulation performance of the slot insulation paper.
  • the stator further includes a positioning member for pressing the first covering portion and the second covering portion of the slot insulation paper, and the positioning member is installed in the stator slot.
  • a clamping groove is arranged on the side wall of the stator slot to clamp the positioning piece, so as to facilitate the installation and fixation of the positioning piece.
  • an embodiment of the present application provides an electric drive assembly, comprising an axial motor as described in the above embodiment.
  • FIG1 is a schematic structural diagram of a vehicle according to some embodiments of the present application.
  • FIG2 is a schematic diagram of the structure of an axial motor in some embodiments of the present application.
  • FIG3 is a schematic structural diagram of an axial motor in some other embodiments of the present application.
  • FIG4 is a schematic structural diagram of an axial motor in some other embodiments of the present application.
  • FIG5 is a schematic structural diagram of an axial motor in some other embodiments of the present application.
  • FIG6 is a schematic diagram of a partial structure of a stator in some embodiments of the present application.
  • FIG7 is a schematic diagram of the cross-sectional structure along line A-A in FIG6 ;
  • FIG8 is a schematic diagram of the structure of the slot insulation paper in FIG7;
  • FIG9 is a schematic structural diagram of the bent section of the slot insulation paper shown in FIG8 being inserted into the stator slot;
  • FIG11 is a schematic diagram of the structure of the slot insulation paper and windings installed in the stator slots in FIG7;
  • FIG12 is a schematic diagram of a structure in which a positioning member is installed in a stator slot according to some embodiments of the present application.
  • FIG13 is a schematic diagram of the structure of slot insulation paper in other embodiments of the present application.
  • FIG14 is a schematic diagram of the structure of slot insulation paper in some other embodiments of the present application.
  • FIG15 is a schematic diagram of the structure of slot insulation paper in some other embodiments of the present application.
  • FIG. 16 is a schematic diagram of the structure of slot insulation paper according to some further embodiments of the present application.
  • the main marks of the drawings in the figure are: 1000-vehicle; 1001-electric drive assembly; 100-axial motor; 200-transmission; 1002-controller; 1003-battery; 10- rotor; 20- stator; 21- stator core; 210- stator slot; 211- stator tooth; 22- winding; 23- slot insulation paper; 240- main body; 241- first section; 242- second section; 243- curved section; 2431- first subsection; 2432 - second sub-segment; 2433 - arc segment; 2434 - first guide segment; 2435 - second guide segment; 251 - first covering portion; 252 - second covering portion; 261 - first folding portion; 262 - second folding portion; 27- positioning member; 30-Rotation shaft.
  • first, second, etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined as “first” or “second” may explicitly or implicitly include one or more of the features.
  • the term "and/or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • Motors are also called electric motors. They are generally composed of two parts: a rotor and a stator.
  • a motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magnetic-electrical force rotation torque.
  • the fixed part of the motor is called the stator, and the rotating part of the motor is called the rotor.
  • the stator drives the rotor to rotate in the motor to convert electrical energy into mechanical energy, thereby outputting torque.
  • a speed change mechanism is also set in the casing of the electric drive assembly.
  • a reducer is often set in the casing to increase the torque and output power through the reducer; in some cases where the driving speed requirements are lower, a reducer is also used.
  • a speed increaser is also required to increase the output speed.
  • a speed change mechanism is also integrated in some electric drive assemblies.
  • the speed change mechanism also known as the gearbox, is a mechanism used to change the speed and torque from the motor. It can fix or change the transmission ratio of the output shaft and the input shaft in stages.
  • the speed change mechanism is composed of a speed change transmission assembly. Transmission assembly Most of them use ordinary gear transmission, some use planetary gear transmission, and some use belt transmission.
  • a radial motor is a motor in which the stator and rotor are arranged radially, such as a motor in which the stator is located on the outer periphery of the rotor or the rotor is located on the outer periphery of the stator, that is, a motor in which the stator is sleeved on the outer periphery of the rotor or the rotor is sleeved on the outer periphery of the stator.
  • Axial motors are motors in which the stator and rotor are arranged axially.
  • stator is located on the side of the rotor, and correspondingly, the rotor is also located on the side of the stator.
  • the side of the rotor close to the stator is defined as the stator side.
  • the stator Since the stator is located on the side of the rotor, the stator generally includes a stator core and a winding.
  • the side of the stator core is annularly arrayed with stator teeth, and stator slots are formed between adjacent stator teeth.
  • the stator windings are arranged in the stator slots to generate an electromagnetic field.
  • stator slots Since windings are arranged in the stator slots, a voltage difference will be formed between the windings and the slot walls of the stator slots when the windings are working. Therefore, insulating paper needs to be arranged in the stator slots to wrap the windings so as to insulate the windings from the slot walls of the stator slots and improve the insulation performance.
  • the slot wall of the stator slot refers to the two opposite side walls of the stator slot and the slot bottom wall of the stator slot.
  • the mouth of the stator slot opposite to the slot bottom is the slot opening of the stator slot.
  • the side wall between the slot opening and the slot bottom of the stator slot is the side wall of the stator slot.
  • an embodiment of the present application provides a slot insulation paper, wherein a first folding portion and a second folding portion are respectively arranged at both ends of the main body of the slot insulation paper, and a first covering portion is connected to the first folding portion, and a second covering portion is connected to the second folding portion, so that the first covering portion and the second covering portion both extend toward one side of the thickness direction of the main body, and the first folding portion and the second folding portion both extend toward the other side of the thickness direction of the main body.
  • the slot wall of the stator slot and the winding jointly push the first folding portion and the second folding portion to move, thereby driving the first covering portion and the second covering portion to approach each other to overlap, so as to wrap the winding and facilitate installation.
  • the slot insulating paper disclosed in the embodiment of the present application can be applied to the stator of an axial motor.
  • the stator disclosed in the embodiment of the present application can be used for an axial motor.
  • the axial motor can be used as a power structure to be applied to an electric drive assembly, a drive device, etc. as a power source.
  • the electric drive assembly can also be applied to a drive device.
  • the drive device can be, but is not limited to, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric car, a ship, a spacecraft, and the like.
  • Electric toys can include fixed or mobile electric toys, for example, game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like, and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, and the like.
  • the driving device can be an electric vehicle or a vehicle chassis.
  • the axial motor can be integrated with one or more of the power supply, controller, gearbox and other devices to form an electric drive assembly.
  • a driving device is provided in accordance with an embodiment of the present application, and the driving device is explained by taking a vehicle as an example.
  • FIG. 1 is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of the present application.
  • Vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle.
  • the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • An electric drive assembly 1001 is disposed inside the vehicle 1000.
  • the electric drive assembly 1001 may be disposed at the bottom, head or tail of the vehicle 1000.
  • the electric drive assembly 1001 may be used to increase the power of the vehicle 1000.
  • the vehicle 1000 may also include a controller 1002 and a battery 1003.
  • the controller 1002 is used to control the operation of the electric drive assembly 1001, for example For example, the controller 1002 controls the start, speed change and stop of the electric drive assembly 1001.
  • the controller 1002 can also be used to control the battery 1003 to supply power to the electric drive assembly 1001, for example, to meet the power requirements of the vehicle 1000 when starting, navigating and driving.
  • the electric drive assembly 1001 includes an axial motor 100, and the axial motor 100 is used as a power source for the electric drive assembly 1001. It can be understood that the electric drive assembly 1001 is not limited to being used in the vehicle 1000, but can also be used in other devices that require power output.
  • the electric drive assembly 1001 may further include a transmission 200, which is connected to the axial motor 100 to achieve torque change of the axial motor 100.
  • the transmission 200 also known as a gearbox, is a mechanism used to change the speed and torque from the engine, and it can change the output shaft and input shaft transmission ratio in a fixed or step-by-step manner.
  • the controller 1002 may be integrated with the axial motor 100 to form an electric drive assembly 1001 .
  • the battery 1003 may be integrated with the axial motor 100 to form an electric drive assembly 1001 .
  • the transmission 200 and the controller 1002 may be integrated with the axial motor 100 to form an electric drive assembly 1001 .
  • the transmission 200, the controller 1002 and the battery 1003 may be integrated with the axial motor 100 to form an electric drive assembly 1001.
  • the electric drive assembly 1001 may also be integrated with other structures, such as a cooling oil circuit.
  • FIG. 2 is a schematic diagram of the structure of an axial motor 100 provided in an embodiment of the present application.
  • the embodiment of the present application provides an axial motor 100 , which includes a rotating shaft 30 , a stator 20 , and a rotor 10 .
  • the rotor 10 is fixedly mounted on the rotating shaft 30
  • the stator 20 is located on a side of the rotor 10 .
  • the rotating shaft 30 refers to a shaft-shaped member in the axial motor 100 for outputting power.
  • the rotating shaft 30 is fixedly connected to the rotor 10 and can rotate driven by the rotor 10 to output power.
  • the stator 20 and the rotating shaft 30 can rotate relative to each other, so that the stator 20 and the rotor 10 can rotate relative to each other.
  • the stator 20 can be supported on the rotating shaft 30 by a bearing.
  • the stator 20 when the axial motor 100 includes a housing, the stator 20 can be fixed to the housing, and the stator 20 can be supported by the housing, and the rotor 10 and the rotating shaft 30 are rotatably installed in the housing, so that the stator 20 and the rotor 10 can rotate relative to each other, so that the stator 20 drives the rotor 10 to rotate.
  • the stator 20 is located on the side of the rotor 10 , which means that the stator 20 is located on one side of the axial direction of the rotor 10 , so that the stator 20 drives the rotor 10 to rotate, and further drives the rotating shaft 30 to rotate.
  • the axial direction refers to the axial direction of the rotating shaft 30
  • the axial direction of the rotating shaft 30 is also the axial direction of the stator 20 and the axial direction of the rotor 10 . Therefore, the axial direction also refers to the axial direction of the rotor 10 .
  • the circumferential direction refers to a direction around the axial direction of the rotating shaft 30 , which is also a direction around the axial direction of the rotor 10 .
  • the main body 240 is an integrally formed structure, which means that the main body 240 is integrally manufactured and formed, for example, a relatively wide insulating paper can be used and formed by bending.
  • the slot insulation paper 23 is integrally formed to facilitate manufacturing and improve the overall insulation performance of the slot insulation paper 23 .
  • One end of the first folded portion 261 is bent to form the first covering portion 251 , which is convenient for processing and manufacturing.
  • the first covering portion 251 can be manufactured separately and then connected to the first folding portion 261 .
  • the second covering portion 252 is formed by bending and extending the second folding portion 262 away from the main body 240 . That is, a portion of the second folding portion 262 is bent to form the second covering portion 252 .
  • the second covering portion 252 can be manufactured separately and then connected to the second folding portion 262 .
  • the first folding portion 261 is extended by bending one end of the main body 240. A portion of the body 240 is bent to form a first folded portion 261 .
  • One end of the main body 240 is bent to form a first folded portion 261 for ease of processing and manufacturing.
  • the first folded portion 261 can be manufactured separately and then connected to the main body 240 .
  • the second folding portion 262 is extended by bending from the other end of the main body 240. That is, a portion of the main body 240 is bent to form the second folding portion 262.
  • the other end of the main body 240 is bent to form a second folded portion 262 for ease of processing and manufacturing.
  • the second folded portion 262 can be manufactured separately and then connected to the main body 240 .
  • the first folded portion 261 is connected to the main body 240 via an arc transition, that is, the connection between the first folded portion 261 and the main body 240 is in an arc shape.
  • the arc transition of the first folded portion 261 to the main body 240 can reduce fold damage and improve the insulation performance of the slot insulation paper 23.
  • the first covering portion 251 is connected to the first folding portion 261 via an arc transition, and the connection between the first covering portion 251 and the first folding portion 261 is arc-shaped.
  • the arc transition from the first covering portion 251 to the first folding portion 261 can reduce fold damage to improve the insulation performance of the slot insulation paper 23.
  • the width H1 of the first covering portion 251 may be set to be greater than the width H2 of the second covering portion 252; the width H1 of the first covering portion 251 may also be set to be less than the width H2 of the second covering portion 252; the width H1 of the first covering portion 251 may also be set to be equal to the width H2 of the second covering portion 252.
  • the specific setting may be as required and is not limited here.
  • the space between the second covering portion 252 and the second folding portion 262 is The angle b ranges from 80 degrees to 120 degrees, such as 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, etc., so that the second covering portion 252 can be well moved to the side of the notch of the winding 22 close to the stator slot 210, and it is also convenient for the second covering portion 252 to overlap with the first covering portion 251.
  • the angle b between the second covering portion 252 and the second folding portion 262 is too small, such as less than 80 degrees, when the second folding portion 262 drives the second covering portion 252 to move toward the winding 22, it is easy to be stopped by the side of the winding 22.
  • the angle b between the second covering portion 252 and the second folding portion 262 is too large, such as greater than 120 degrees, after the second folding portion 262 drives the second covering portion 252 to move toward the winding 22, the second covering portion 252 and the first covering portion 251 are too wide, and it is difficult to overlap.
  • the angle m between the main body 240 and the first folded portion 261 ranges from 90 degrees to 150 degrees, such as 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees, etc.
  • the winding 22 can be easily installed, and when the winding 22 is pressed into the stator slot 210, it is easy to push the first folded portion 261 into the stator slot 210, thereby reducing the resistance of the side wall of the stator slot 210 to the first folded portion 261, reducing the scratches on the first folded portion 261, and improving the insulation performance.
  • the angle m between the main body 240 and the first folded portion 261 is too small, such as less than 90 degrees, before the first folded portion 261 enters the stator slot 210, the angle between the first folded portion 261 and the slot wall of the stator slot 210 is too small, which makes it difficult for the first folded portion 261 to be introduced into the stator slot 210, and may even damage the first folded portion 261 due to excessive resistance.
  • the angle m between the main body 240 and the first folded portion 261 is too large, such as greater than 150 degrees, after the middle portion of the main body 240 in the width direction is bent and inserted into the stator slot 210, the spacing between the first covering portion 251 and the second covering portion 252 will be small, which makes it inconvenient to install the winding 22.
  • the angle n between the main body 240 and the second folded portion 262 ranges from 90 degrees to 150 degrees, such as 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 140 degrees, 150 degrees, etc.
  • the winding 22 can be easily installed, and when the winding 22 is pressed into the stator slot 210, it is easy to push the second folded portion 262 into the stator slot 210, thereby reducing the resistance of the side wall of the stator slot 210 to the second folded portion 262, reducing the scratches on the second folded portion 262, and improving the insulation performance.
  • the angle between the second folded portion 262 and the slot wall of the stator slot 210 is too small, which makes it difficult for the second folded portion 262 to be introduced into the stator slot 210, and may even damage the second folded portion 262 due to excessive resistance.
  • the stator 20 of some embodiments of the present application further includes a positioning member 27 for pressing the first covering portion 251 and the second covering portion 252 of the slot insulation paper 23 .
  • the positioning member 27 is installed in the stator slot 210 .
  • the positioning member 27 is a structural member provided in the stator slot 210 and used to press the first covering portion 251 and the second covering portion 252 of the slot insulation paper 23 so as to keep the first covering portion 251 and the second covering portion 252 overlapped.
  • the positioning member 27 can generally be made of non-magnetic and non-conductive materials such as plastic, rubber, and bakelite, which can reduce the magnetic leakage between the stator teeth 211 on the one hand, and reduce the eddy current loss on the other hand.
  • the positioning member 27 is installed. Through the pressing and fixing of the positioning member 27, the first covering part 251 and the second covering part 252 can be supported on the winding 22 to better wrap the winding 22 and improve the insulation performance.
  • a positioning member 27 is provided to press the first covering portion 251 and the second covering portion 252, so as to position the slot insulation paper 23 close to the slot opening of the stator slot 210, which can effectively prevent the first covering portion 251 and the second covering portion 252 from tilting relative to the winding 22, so as to better surround the winding 22 and improve the insulation performance.
  • first covering portion 251 and the second covering portion 252 may be bonded together.
  • a slot for snapping the positioning member 27 is provided on the side wall of the stator slot 210 .
  • the clamping slot refers to a groove structure provided on the side wall of the stator slot 210 .
  • a clamping groove is provided on the side wall of the stator slot 210 to clamp the positioning member 27 , thereby facilitating the installation and fixation of the positioning member 27 .
  • the curved segment 243 only includes a first sub-segment 2431 , an arc segment 2433 , and a second sub-segment 2432 , and has a simple structure and is easy to manufacture.
  • the curved section 243 is arc-shaped.
  • the curved section 243 is configured in an arc shape, which can be easily processed and manufactured to guide the first section 241 and the second section 242 to enter the stator slot 210 .
  • the curved segment 243 includes a plurality of folded line segments connected in sequence.
  • the curved segment 243 is provided with a plurality of folded line segments, and the plurality of folded line segments are connected in sequence to form the curved segment 243, which can be easily processed and manufactured.
  • the main body 240 may be configured to be in a flat plate shape before use to facilitate processing and manufacturing, and it may be conveniently stacked during storage to reduce occupied space.
  • the slot insulation paper 23 provided in the embodiments of the present application includes a first covering portion 251, a first folding portion 261, a main body 240, a second folding portion 262 and a second covering portion 252 connected in sequence, and the first covering portion 251 is bent and extended from one end of the first folding portion 261 away from the main body 240 toward one side in the thickness direction of the main body 240.
  • the second covering portion 252 is bent and extended from one end of the second folding portion 262 away from the main body 240 toward one side in the thickness direction of the main body 240.
  • the first folding portion 261 is bent and extended from one end of the main body 240 toward the other side in the thickness direction of the main body 240
  • the second folding portion 262 is bent and extended from the other end of the main body 240 toward the other side in the thickness direction of the main body 240.
  • the main body 240 includes a first section 241, a second section 242 and a curved section 243.
  • the curved section 243 is bent toward one side in the thickness direction of the main body 240.
  • the first section 241 and the second section 242 are arranged opposite to each other.
  • the two ends of the curved section 243 are respectively connected to the first section 241 and the second section 242.
  • the first folding portion 261 is connected to one end of the first section 241 away from the curved section 243, and the second folding portion 262 is connected to one end of the second section 242 away from the curved section 243.
  • the winding 22 can be automatically wound, which is convenient to install and efficient.
  • the present application also provides a stator 20, including the slot insulation paper 23 described in any of the above embodiments.
  • the arrangement of the slot insulation paper 23 can facilitate the assembly of the stator 20.
  • the stator 20 further includes a stator core 21 and a winding 22.
  • Stator teeth 211 are provided on the side of the stator core 21.
  • Stator slots 210 are formed between adjacent stator teeth 211.
  • Slot insulation paper 23 and the winding 22 are placed in the stator slots 210. The slot insulation paper 23 is wrapped around the winding 22 to ensure good insulation performance between the winding 22 and the slot wall of the stator slot 210.
  • the embodiments of the present application further provide an axial motor 100 , comprising the stator 20 as described in the above embodiments.
  • the embodiments of the present application further provide an electric drive assembly 1001, comprising the axial motor 100 as described in the above embodiments.
  • the embodiments of the present application further provide a driving device, including the axial motor 100 as described in the above embodiments; or including the electric drive assembly 1001 as described in the above embodiments.

Landscapes

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

Abstract

提供了一种槽绝缘纸(23)、定子(20)、轴向电机(100)、电驱总成(1001)及驱动设备。槽绝缘纸(23),包括:主体(240),宽度方向的中部可朝向厚度方向的一侧弯曲;第一覆盖部(251),设于主体(240)宽度方向的一端,并朝向主体(240)厚度方向的一侧延伸设置;第二覆盖部(252),设于主体(240)宽度方向的另一端,并朝向主体(240)厚度方向的一侧延伸设置;第一翻折部(261),设于主体(240)与第一覆盖部(251)之间,并朝向主体(240)厚度方向的另一侧延伸设置;第二翻折部(262),设于主体(240)与第二覆盖部(252)之间,并朝向主体(240)厚度方向的另一侧延伸设置。

Description

槽绝缘纸、定子、轴向电机、电驱总成及驱动设备
本申请要求于2023年06月26日在中国专利局提交的、申请号为202310764792.9、发明名称为“槽绝缘纸、定子、轴向电机、电驱总成及驱动设备”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
本申请属于电机技术领域,更具体地说,是涉及一种槽绝缘纸、定子、轴向电机、电驱总成及驱动设备。
背景技术
这里的陈述仅提供与本申请有关的背景信息,而不必然构成现有技术。轴向电机,因其结构紧凑、效率高、功率密度大等优点获得越来越多的关注。轴向电机的定子槽中会设置绝缘纸包裹绕组,以使绕组与定子铁芯良好绝缘。然而要使绝缘纸包裹绕组位于定子槽中的部分,安装不方便。
申请内容
本申请实施例的目的在于提供一种槽绝缘纸、定子、轴向电机、电驱总成及驱动设备,以解决相关技术中轴向电机的定子槽中设置绝缘纸包裹绕组时,安装不方便的问题。
第一方面,本申请实施例提供了一种槽绝缘纸,包括:
主体,宽度方向的中部可朝向厚度方向的一侧弯曲以用于置于定子的定子槽中;
第一覆盖部,设于主体宽度方向的一端,并朝向主体厚度方向的一侧延伸设置;
第二覆盖部,设于主体宽度方向的另一端,并朝向主体厚度方向的一侧延伸设置;
第一翻折部,设于主体与第一覆盖部之间,并朝向主体厚度方向的另一侧延伸设置;
第二翻折部,设于主体与第二覆盖部之间,并朝向主体厚度方向的另一侧延伸设置。
本申请实施例的技术方案中,通过在主体的相对两端分别设置第一翻折部和第二翻折部,并设置与第一翻折部相连的第一覆盖部和与第二翻折部相连的第二覆盖部,在将主体置于定子槽中时,会使主体的两端向对弯曲,以便绕组置于定子槽,而在绕组进一步推动主体进入定子槽时,第一翻折部和第二翻折部相对靠近,以贴于定子槽的相对两侧壁,进而带动第一覆盖部与第二覆盖部相互靠近,以折叠于绕组靠近定子槽的槽口的一侧,从而在绕组安装时,实现槽绝缘纸自动围绕绕组,以方便组装,提升绕组与定子槽的槽壁间的绝缘性。
在一些实施例中,第一覆盖部与第二覆盖部的宽度之和大于或等于定子槽的宽度。
将第一覆盖部与第二覆盖部的宽度之和设置比定子槽的宽度大或相等,可以使绕组安装在定子槽中后,第一覆盖部与第二覆盖部可以配合完全覆盖绕组靠近定子槽的槽口的一侧,以提升绝缘性能。
在一些实施例中,第一覆盖部与第二覆盖部的宽度之和与定子槽的宽度之差的范围大于或等于1mm。
通过上述方案,可以使第一覆盖部与第二覆盖部重叠的长度大于或等于1mm,以提升绝缘性能。
在一些实施例中,主体包括第一段、第二段和弯曲段,弯曲段朝向主体厚度方向的一侧弯曲设置,弯曲段用于引用第一段和第二段进入定子槽,第一段与第二段相对设置, 弯曲段的两端分别连接第一段与第二段,第一翻折部与第一段远离弯曲段的一端相连,第二翻折部与第二段远离弯曲段的一端相连。
通过上述方案,在将主体插入到定子槽中时,可以先插入弯曲段,并引导第一段与第二段插入到定子槽中,以便安装。
在一些实施例中,弯曲段呈弧形,或者,弯曲段包括依次相连的多个折线段。
弯曲段设置呈弧形,可以便于加工制作,以引导第一段和第二段进入定子槽。
弯曲段设置依次相连的多个折线段,可以方便加工制作。
在一些实施例中,弯曲段包括第一子段、与第一子段倾斜设置的第二子段,第一子段与第二子段相连,第一段与第一子段相连,第二段与第二子段相连。
通过设置相互倾斜的第一子段和第二子段,制作方便,也便于插入到定子槽中。
在一些实施例中,弯曲段还包括第一导向段和第二导向段,第一导向段连接第一子段与第一段,第一导向段与第一子段呈钝角折弯设置;第二导向段连接第二子段与第二段,第二导向段与第二子段呈钝角折弯设置。
设置第一导向段和第二导向段,第一子段和第二子段插入定子槽中时,可以使第一导向段及第二导向段与定子槽的侧壁的倾角较小,以便进入定子槽,并减小对第一导向段和第二导向段的刮伤。
在一些实施例中,第一子段与第二子段通过弧形段过渡连接。
设置弧形段,以减小第一子段与第二子段连接处的折痕损伤,以提升槽绝缘纸的绝缘性能。
在一些实施例中,主体是一体成型结构。
将主体一体成型,以方便加工制作,并提升主体的绝缘性能。
在一些实施例中,槽绝缘纸是一体成型结构。
将槽绝缘纸一体成型,可以便于制作,提升槽绝缘纸整体的绝缘性能。
在一些实施例中,第一覆盖部由第一翻折部远离主体的一端折弯延伸设置;
和/或,第二覆盖部由第二翻折部远离主体的一端折弯延伸设置;
和/或,第一翻折部由主体的一端折弯延伸设置;
和/或,第二翻折部由主体的另一端折弯延伸设置。
将第一翻折部的一端部折弯,以形成第一覆盖部,便于加工制作。
将第二翻折部的一端部折弯,以形成第二覆盖部,便于加工制作。
将主体的一端部折弯,以形成第一翻折部,便于加工制作。
将主体的另一端部折弯,以形成第一翻折部,便于加工制作。
在一些实施例中,第一翻折部与主体经弧形过渡连接;
和/或,第二翻折部与主体经弧形过渡连接;
和/或,第一覆盖部与第一翻折部经弧形过渡连接;
和/或,第二覆盖部与第二翻折部经弧形过渡连接。
第一翻折部弧形过渡至主体,可以减小折痕损伤,以提升槽绝缘纸的绝缘性能。
第二翻折部弧形过渡至主体,可以减小折痕损伤,以提升槽绝缘纸的绝缘性能。
第一覆盖部弧形过渡至第一翻折部,可以减小折痕损伤,以提升槽绝缘纸的绝缘性能。
第二覆盖部弧形过渡至第二翻折部,可以减小折痕损伤,以提升槽绝缘纸的绝缘性能。
第二方面,本申请实施例提供了一种定子,包括如上任一实施例所述的槽绝缘纸。
在一些实施例中,定子还包括定子铁芯和绕组,定子铁芯上设有多个定子齿,相邻定子齿之间形成定子槽,绕组安装于定子槽中,槽绝缘纸置于定子槽中,槽绝缘纸围绕绕组设置。
通过在定子槽中设置槽绝缘纸,在绕组将槽绝缘纸压入定子槽中时,可以使槽绝缘绕围绕绕组,以提升绕组与定子槽的槽壁间的绝缘性能。
在一些实施例中,定子还包括用于抵压槽绝缘纸的第一覆盖部与第二覆盖部的定位件,定位件安装于定子槽中。
设置定位件,以抵压第一覆盖部与第二覆盖部,从而将槽绝缘纸靠近定子槽的槽口的一侧进行定位,可以良好地防止第一覆盖部与第二覆盖部张开,以更好地围绕绕组,提升绝缘性能。
在一些实施例中,定子槽的侧壁上设有用于卡接定位件的卡槽。
在定子槽的侧壁上设置卡槽,以便卡接定位件,便于定位件的安装固定。
第三方面,本申请实施例提供了一种轴向电机,包括如上述实施例所述的定子。
第四方面,本申请实施例提供了一种电驱总成,包括如上述实施例所述的轴向电机。
第五方面,本申请实施例提供了一种驱动设备,包括如上述实施例所述的轴向电机;或者包括如上述实施例所述的电驱总成。
上述说明仅是本申请技术方案的概述,为了能够更清楚了解本申请的技术手段,而可依照说明书的内容予以实施,并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂,以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请一些实施例的车辆的结构示意图;
图2为本申请一些实施例的轴向电机的结构示意图;
图3为本申请另一些实施例的轴向电机的结构示意图;
图4为本申请再一些实施例的轴向电机的结构示意图;
图5为本申请又一些实施例的轴向电机的结构示意图;
图6为本申请一些实施例的定子的局部结构示意图;
图7为图6中A-A线剖视结构示意图;
图8为图7中槽绝缘纸的结构示意图;
图9为图8所示的槽绝缘纸的弯曲段插入定子槽的结构示意图;
图10为图9中槽绝缘纸的主体插入定子槽的结构示意图;
图11为图7中槽绝缘纸与绕组安装于定子槽中的结构示意图;
图12为本申请一些实施例的定位件安装于定子槽中的结构示意图;
图13为本申请另一些实施例的槽绝缘纸的结构示意图;
图14为本申请再另一些实施例的槽绝缘纸的结构示意图;
图15为本申请又一些实施例的槽绝缘纸的结构示意图;
图16为本申请再一些实施例的槽绝缘纸的结构示意图。
其中,图中各附图主要标记:
1000-车辆;1001-电驱总成;100-轴向电机;200-变速器;1002-控制器;1003-电池;
10-转子;
20-定子;
21-定子铁芯;210-定子槽;211-定子齿;22-绕组;
23-槽绝缘纸;240-主体;241-第一段;242-第二段;243-弯曲段;2431-第一子段;
2432-第二子段;2433-弧形段;2434-第一导向段;2435-第二导向段;251-第一覆盖部;252-第二覆盖部;261-第一翻折部;262-第二翻折部;
27-定位件;
30-转轴。
具体实施方式
为了使本申请所要解决的技术问题、技术方案及有益效果更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同;本文中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本申请;本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形,意图在于覆盖不排他的包含。
在本申请实施例的描述中,技术术语“第一”、“第二”等仅用于区别不同对象,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。
在本文中提及“实施例”意味着,结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例,也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是,本文所描述的实施例可以以任何合适的方式与其它实施例相结合。
在本申请实施例的描述中,术语“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中,术语“多个”指的是两个以上(包括两个),同理,“多组”指的是两组以上(包括两组),“多片”指的是两片以上(包括两片)。“若干”的含义是一个或一个以上,除非另有明确具体的限定。
在本申请实施例的描述中,技术术语“中心”、“纵向”、“横向”、“长度”、“宽度”、 “厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请实施例和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中,除非另有明确的规定和限定,技术术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;也可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。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实施例中的具体含义。
在本申请实施例的描述中,除非另有明确的规定和限定,当元件被称为“固定于”或“设置于”另一个元件,它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件,它可以是直接连接到另一个元件或间接连接至该另一个元件上。
在本申请实施例的描述中,除非另有明确的规定和限定,技术术语“邻近”是指位置上接近。例如A1、A2和B三部件,A1与B之间的距离大于A2与B之间的距离,那么A2相比A1来说,A2更接近于B,即A2邻近B,也可以说B邻近A2。再如,当有多个C部件,多个C部件分别为C1、C2……CN,当其中一个C部件,如C2相比其他C部件更靠近B部件,那么B邻近C2,也可以说C2邻近B。
采用电机作为动力源的驱动结构一般称为电驱。将电机与冷却系统、变速机构、控制器等部件中的一个或几个进行集成,可以形成电驱总成。电驱总成也称为电驱动总成或电驱动装置。电驱总成是电动汽车的主要动力装置,电驱总成用于将电池所提供的电能转化为机械能以驱动电动汽车行驶。目前,电驱总成可以分为集中式电驱总成和分布式电驱总成,其中,集中式电驱总成是通过变速器、减速器等机械传动装置将电机的输出力矩传递到电动汽车的左、右车轮上,以驱动电动汽车行驶,而分布式电驱总成通常包括至少两个电机,每个电机的输出力矩传递至一个车轮上,以驱动电动汽车行驶,使得分布式电驱总成可以实现对电动汽车的单个车轮进行独立控制,因此,与采用集中式电驱总成的电动汽车相比,采用分布式电驱总成的电动汽车具有更好的操纵性,使分布式电驱总成越来越受汽车厂家青睐。
电机也称电动机(Motor),电机一般由转子和定子两部分组成,电机是把电能转换成机械能的一种设备。它是利用通电线圈产生旋转磁场并作用于转子形成磁电动力旋转扭矩。电机中固定的部分叫定子(stator);而电机中旋转部分叫转子(rotor)。电机中通过定子驱动转子转动,以实现将电能转为机械能,从而向外输出扭矩。
另外,在一些情况下,电机并不直接输出动力,还会在电驱总成的机壳中设置变速机构。如一些需要扭矩较大的情况下,往往会在机壳中设置减速器,以提升扭矩,经减速器输出动力;在一些驱动速度要求较低的情况下,也会使用减速器。而对于一些需要转速较高的情况下,还需要升速器,以提升输出转速。也就是说,一些电驱总成中还会集成变速机构。变速机构,又称变速箱,是用来改变来自电机的转速和转矩的机构,它能固定或分档改变输出轴和输入轴传动比。变速机构由变速传动组件组成。传动组件 大多用普通齿轮传动,也有的用行星齿轮传动,还有使用带传动。
电机可以分为径向电机和轴向电机。径向电机是指定子与转子沿径向排布的电机,如定子位于转子的外周或转子位于定子外周的电机,即定子套于转子外周或转子套于定子外周的电机为径向电机。轴向电机是指定子与转子沿轴向排布的电机。对于轴向电机,定子位于转子的侧面,相应地,转子也位于定子的侧面。为了便于描述,将转子上靠近定子的一侧定义为定子侧。
轴向电机,因其结构紧凑、效率高、功率密度大等优点获得越来越多的关注。由于定子位于转子的侧面,定子一般包括定子铁芯和绕组,定子铁芯的侧面环形阵列定子齿,相邻定子齿之间形成定子槽。定子的绕组设置于定子槽中,以形成产生电磁场。
由于定子槽中会设置绕组,而绕组工作时,会与定子槽的槽壁间形成电压差,这就需要在定子槽中设置绝缘纸,以包绕绕组,以将绕组与定子槽的槽壁进行绝缘隔离,提升绝缘性能。
定子槽的槽壁是指定子槽的相对两个侧壁,以及定子槽的槽底壁。定子槽上与槽底相对的口部为定子槽的槽口。定子槽的槽口与槽底之间的侧壁为定子槽的侧壁。
然而,由于绕组将槽绝缘纸压入定子槽中时,还需要弯曲折叠槽绝缘纸的相对两端,以包绕绕组,这就导致安装不方便,一旦折叠不好,还会导致绝缘性能下降。
基于上述考虑,为解决轴向电机的绕组将槽绝缘纸压入定子槽中后,需要折叠槽绝缘纸的端部,而导致安装不方便的问题,本申请实施例提供一种槽绝缘纸,在槽绝缘纸的主体的两端分别设置第一翻折部和第二翻折部,并在第一翻折部上连接第一覆盖部,第二翻折部上连接第二覆盖部,使第一覆盖部和第二覆盖部均朝向主体厚度方向的一侧延伸,而第一翻折部和第二翻折部均朝向主体厚度方向的另一侧延伸,在主体弯曲插入定子槽中,并使绕组将主体压入定子槽中时,定子槽的槽壁与绕组共同推动第一翻折部和第二翻折部移动,从而带动第一覆盖部与第二覆盖部相互靠近,以叠合,实现将绕组包绕,安装方便。
本申请实施例公开的槽绝缘纸可以应用于轴向电机的定子。而本申请实施例公开的定子可以用于轴向电机。轴向电机可以作为动力结构来应用于电驱总成、驱动设备等作为动力源。电驱总成也可以应用于驱动设备。驱动设备可以为但不限于电动玩具、电动工具、电动自行车、电动摩托车、电动汽车、轮船、航天器等等。电动玩具可以包括固定式或移动式的电动玩具,例如,游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等,航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
驱动设备可以为电动汽车,也可以为汽车底盘。可以将轴向电机与电源、控制器、变速箱等器件中的一个或几个进行集成,以形成电驱总成。
为了方便说明,以本申请一实施例提供一种驱动设备,该驱动设备以车辆为例进行说明。
请参照图1,图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000可以为燃油汽车、燃气汽车或新能源汽车,新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1000的内部设置有电驱总成1001,电驱总成1001可以设置在车辆1000的底部或头部或尾部。电驱总成1001可以用于车辆1000提升动力。车辆1000还可以包括控制器1002和电池1003,控制器1002用来控制电驱总成1001的运行,例 如,控制电驱总成1001的启动、变速和停止。控制器1002还可以用来控制电池1003向电驱总成1001供电,例如,用于车辆1000的启动、导航和行驶时的工作用电需求。
在一些实施例中,电驱总成1001包括轴向电机100,通过轴向电机100作为电驱总成1001的动力源。可以理解地,电驱总成1001不限于应用在车辆1000中,也可以应用在其他需要动力输出的设备中。
在一些实施例中,电驱总成1001还可以包括变速器200,变速器200与轴向电机100相连,以实现轴向电机100的扭矩改变。变速器200(Transmission),又称变速箱,是用来改变来自发动机的转速和转矩的机构,它能固定或分档改变输出轴和输入轴传动比。
在一些实施例中,可以将控制器1002与轴向电机100集成,以形成电驱总成1001。
在一些实施例中,可以将电池1003与轴向电机100集成,以形成电驱总成1001。
在一些实施例中,可以将变速器200和控制器1002与轴向电机100集成,以形成电驱总成1001。
在一些实施例中,可以将变速器200、控制器1002和电池1003均与轴向电机100集成,以形成电驱总成1001。当然,电驱总成1001还可以集成其他结构,如冷却油路等。
请参阅图2,图2为本申请实施例提供的轴向电机100的结构示意图。
本申请实施例提供一种轴向电机100,包括转轴30、定子20和转子10,转子10固定安装于转轴30上,定子20位于转子10的侧面。
转轴30是指轴向电机100中用来输出动力的轴状件,转轴30与转子10固定相连,可以在转子10的带动下转动,以输出动力。
定子20与转轴30可以相对转动,进而使定子20可以与转子10可以相对转动。如一些实施例中,定子20可以通过轴承支撑在转轴30上。再如一些实施例中,轴向电机100包括机壳时,可以将定子20固定在机壳上,通过机壳来支撑定子20,而转子10和转轴30转动安装在机壳中,以使定子20可以与转子10可以相对转动,便于定子20驱动转子10转动。
定子20位于转子10的侧面,是指定子20位于转子10轴向的一侧,以便定子20驱动转子10转动,进而带动转轴30转动。
轴向是指转轴30的轴向,而转轴30的轴向也是定子20的轴向,也是转子10的轴向,因而,轴向也是指转子10的轴向。
径向是指转轴30的径向,而转轴30的径向也是定子20的径向,也是转子10的径向,因而,径向也是指转子10的径向。
周向是指围绕转轴30轴向的方向,也是围绕转子10轴向的方向。
在一些实施例中,转子10可以为一个,定子20也可以为一个,定子20位于转子10的一侧,该轴向电机100结构简单,体积小。该结构中,转子10靠近定子20的一侧为定子侧。
请参阅图3,图3为本申请实施例提供的轴向电机100的结构示意图。
在一些实施例中,轴向电机100包括两个定子20和一个转子10,两个定子20位于转子10的相对两侧,这样可以通过两个定子20来驱动同一个转子10转动,以提升 输出功率,而且这种轴向电机100结构更为紧凑。该结构中,由于转子10的相对两侧均设有定子20,因而,转子10的相对两侧均为定子侧。
请参阅图4,图4为本申请实施例提供的轴向电机100的结构示意图。
在一些实施例中,轴向电机100包括两个转子10和一个定子20,两个转子10位于定子20的相对两侧,这样可以通过一个定子20来驱动同两个转子10转动,并带动同一个转轴30转动,以提升输出功率,而且这种轴向电机100结构更为紧凑。该结构中,由于各转子10的一侧设有定子20,因而,转子10靠近定子20的一侧为定子侧。
请参阅图5,图5为本申请实施例提供的轴向电机100的结构示意图。
在一些实施例中,轴向电机100包括多个转子10和多个定子20,相邻两个转子10之间设有定子20,相邻两个定子20之间设有转子10,通过多个定子20来驱动多个转子10转动,进而带动转轴30转动,以提升输出功率。这种结构中,各转子10靠近定子20的一侧为定子侧。
请参阅图6至图11,图6为本申请一些实施例的定子20的局部结构示意图。图7为沿图中A-A线的剖视结构示意图,图中绕组22仅将槽绝缘纸23的主体240压入定子槽210。图8为本申请一些实施例的槽绝缘纸23的结构示意图。图9为图8所示的槽绝缘纸23的弯曲段243插入定子槽210的结构示意图。图10为9中槽绝缘纸23的主体240插入定子槽210的结构示意图。图11为图7中槽绝缘纸23与绕组22安装于定子槽210中的结构示意图。
本申请实施例提供一种定子20,包括定子铁芯21、绕组22和槽绝缘纸23,定子铁芯21上设有多个定子齿211,相邻定子齿211之间形成定子槽210,绕组22安装于定子槽210中,槽绝缘纸23置于定子槽210中,槽绝缘纸23围绕绕组22设置。
定子铁芯21是定子20的重要部分,主要起到支撑与导磁作用。
定子齿211是设于定子铁芯21上的凸出部分,用来导磁。相邻定子齿211之间形成定子槽210,定子槽210用来容置绕组22,也就是说,绕组22安装在定子槽210中。
绕组22是指线圈按一定规律的排列和联结,用以在通电时产生电磁场的结构。
槽绝缘纸23是指设于定子槽210中,以用来将绕组22与定子槽210的槽壁绝缘分隔的绝缘纸。在槽绝缘纸23和绕组22安装于定子槽210中后,槽绝缘纸23是包绕住绕组22,以对绕组22与定子槽210的槽壁之间进行绝缘分隔。槽绝缘纸23可以使用纸材料制作,当然,也可以使用其他绝缘材料制作,如也可以使用绝缘的塑料片制作等。
通过在定子槽210中设置槽绝缘纸23,在绕组22将槽绝缘纸23压入定子槽210中时,可以使槽绝缘纸23围绕绕组22,以提升绕组22与定子槽210的槽壁间的绝缘性能。
槽绝缘纸23具有长度方向、宽度方向和厚度方向,在使用的情况下,槽绝缘纸23的长度方向与定子槽210的长度方向一致。槽绝缘纸23的宽度方向为槽绝缘纸23展开为平面的情况下的宽度方向,槽绝缘纸23展开为平面的情况下的宽度方向垂直于槽绝缘纸23的长度方向。槽绝缘纸23的厚度方向是指槽绝缘纸23展开为平面的情况下的厚度方向。
由于槽绝缘纸23是片状结构,其沿厚度方向具有相对的两侧,并且具有相对的两面,其相对的两面分别位于槽绝缘纸23厚度方向的两侧。
槽绝缘纸23具有相对的两端,其两端为沿槽绝缘纸23宽度方向的相对两端。
请参阅图6至图11,本申请实施例提供一种槽绝缘纸23,包括主体240,宽度方向的中部可朝向厚度方向的一侧弯曲以用于置于定子20的定子槽210中;第一覆盖部251,设于主体240宽度方向的一端,并朝向主体240厚度方向的一侧延伸设置;第二覆盖部252,设于主体240宽度方向的另一端,并朝向主体240厚度方向的一侧延伸设置;第一翻折部261,设于主体240与第一覆盖部251之间,并朝向主体240厚度方向的另一侧延伸设置;第二翻折部262,设于主体240与第二覆盖部252之间,并朝向主体240厚度方向的另一侧延伸设置。
主体240是指槽绝缘纸23展开后的宽度方向的中部区域。主体240宽度方向的中部可朝向厚度方向的一侧弯曲,以用于置于定子20的定子槽210中,是指:在安装使用的情况下,主体240可以从宽度方向的中部位置向主体240厚度方向的一侧弯曲,以便插入到定子槽210中。主体240弯曲时,可以是主动预弯曲,也可以是通过绕组22将主体240压入定子槽210的过程中,绕组22与定子槽210的侧壁配合挤压的被动弯曲。
在槽绝缘纸23展开为平面状时,槽绝缘纸23的厚度方向、主体240的厚度方向、第一覆盖部251的厚度方向、第二覆盖部252的厚度方向、第一翻折部261的厚度方向及第二翻折部262的厚度方向是一致的。
第一覆盖部251是指槽绝缘纸23宽度方向的一个端部,即第一覆盖部251设于主体240宽度方向的一端,在使用的情况下,第一覆盖部251是盖于绕组22靠近定子槽210的槽口的一侧。
第一覆盖部251朝向主体240厚度方向的一侧延伸设置是指,在将主体240展开呈平面状时,第一覆盖部251是朝向主体240厚度方向的一侧延伸。
第二覆盖部252是指槽绝缘纸23宽度方向的另一个端部,即第二覆盖部252设于主体240宽度方向的另一端,在使用的情况下,第二覆盖部252是盖于绕组22靠近定子槽210的槽口的一侧。
第二覆盖部252朝向主体240厚度方向的一侧延伸设置是指,在将主体240展开呈平面状时,第二覆盖部252是朝向主体240厚度方向的一侧延伸。
第一翻折部261是指槽绝缘纸23上的部分区域,并且第一翻折部261是槽绝缘纸23上处于第一覆盖部251与主体240之间的部分区域,第一翻折部261的两端分别连接主体240与第一覆盖部251。
第一翻折部261朝向主体240厚度方向的另一侧延伸设置是指,在将主体240展开呈平面状时,第一翻折部261是朝向主体240厚度方向的另一侧延伸。
由于第一翻折部261设于主体240与第一覆盖部251之间,在槽绝缘纸23展平时,第一覆盖部251是朝向第一翻折部261厚度方向的一侧延伸设置,而第一翻折部261是朝向主体240厚度方向的另一侧延伸。这种结构,在挤压第一翻折部261,使第一翻折部261与主体240的连接处持平时,会使第一翻折部261带动第一覆盖部251整体朝向主体240厚度方向的一侧倾斜。
第二翻折部262是指槽绝缘纸23上的部分区域,并且第二翻折部262是槽绝缘纸23上处于第二覆盖部252与主体240之间的部分区域,第二翻折部262的两端分别连接 主体240与第二覆盖部252。
第二翻折部262朝向主体240厚度方向的另一侧延伸设置是指,在将主体240展开呈平面状时,第二翻折部262是朝向主体240厚度方向的另一侧延伸。
由于第二翻折部262设于主体240与第二覆盖部252之间,在槽绝缘纸23展平时,第二覆盖部252是朝向第二翻折部262厚度方向的一侧延伸设置,而第二翻折部262是朝向主体240厚度方向的另一侧延伸。这种结构,在挤压第二翻折部262,使第二翻折部262与主体240的连接处持平时,会使第二翻折部262带动第二覆盖部252整体朝向主体240厚度方向的一侧倾斜。
主体240沿厚度方向具有相对的两侧,分别为第一侧和第二侧。第一翻折部261由主体240宽度方向的一端朝向主体240的第二侧延伸设置,第二翻折部262由主体240宽度方向的另一端朝向主体240的第二侧延伸设置。第一覆盖部251由第一翻折部261远离主体240的一端朝向主体240的第一侧延伸设置;第二覆盖部252由第二翻折部262远离主体240的一端朝向主体240的第一侧延伸设置。
在使用的过程中,由于主体240宽度方向的中部向一侧弯曲,可以使主体240的相对两端相对靠近,以便插入到定子槽210中;绕组22置于主体240的两端部之间,并压入到定子槽210中,在主体240的两端进入到定子槽210,并向第一翻折部261和第二翻折部262过渡,在第一翻折部261和第二翻折部262进入到定子槽210的过程中,第一翻折部261和第二翻折部262会在绕组22与定子槽210的侧壁的配合挤压下,相向靠近,进而带动第一覆盖部251和第二覆盖部252相向靠近,并叠于绕组22靠近定子槽210的槽口的一侧,以将绕组22包绕,以实现绕组22的自动包绕,安装方便,效率高。
本申请实施例的技术方案中,通过在主体240的相对两端分别设置第一翻折部261和第二翻折部262,并设置与第一翻折部261相连的第一覆盖部251和与第二翻折部262相连的第二覆盖部252,在将主体240置于定子槽210中时,会使主体240的两端向对弯曲,以便绕组22置于定子槽210,而在绕组22进一步推动主体240进入定子槽210时,第一翻折部261和第二翻折部262相对靠近,以贴于定子槽210的相对两侧壁,进而带动第一覆盖部251与第二覆盖部252相互靠近,以折叠于绕组22靠近定子槽210的槽口的一侧,从而在绕组22安装时,实现槽绝缘纸23自动围绕绕组22,以方便组装,提升绕组22与定子槽210的槽壁间的绝缘性。
在一些实施例中,请参阅图7、图8和图11,第一覆盖部251与第二覆盖部252的宽度之和大于或等于定子槽210的宽度。如第一覆盖部251的宽度为H1,第二覆盖部252的宽度为H2,定子槽210的宽度为H3,则H1+H2≥H3。
将第一覆盖部251与第二覆盖部252的宽度之和设置比定子槽210的宽度大或相等,绕组22安装在定子槽210中后,第一覆盖部251与第二覆盖部252可以配合完全覆盖绕组22靠近定子槽210的槽口的一侧,以提升绝缘性能。
在一些实施例中,第一覆盖部251与第二覆盖部252的宽度之和与定子槽210的宽度之差的范围大于或等于1毫米(mm)。如第一覆盖部251的宽度为H1,第二覆盖部252的宽度为H2,定子槽210的宽度为H3,则H1+H2-H3≥1mm,这种设置可以使第一覆盖部251与第二覆盖部252重叠的长度大于或等于1mm,便于第一覆盖部251与第 二覆盖部252更好地重叠覆盖绕组22靠近定子槽210的槽口的一侧,以提升绝缘性能。
在一些实施例中,请参阅图7、图8、图9和图11,主体240包括第一段241、第二段242和弯曲段243,弯曲段243朝向主体240厚度方向的一侧弯曲设置,弯曲段243用于引导第一段241和第二段242进入定子槽210,第一段241与第二段242相对设置,弯曲段243的两端分别连接第一段241与第二段242,第一翻折部261与第一段241远离弯曲段243的一端相连,第二翻折部262与第二段242远离弯曲段243的一端相连。
第一段241是指主体240宽度方向的一端的部分区域。
第二段242是指主体240宽度方向的另一端的部分区域。
弯曲段243是指设于第一段241与第二段242之间,并连接第一段241与第二段242的部分区域。
弯曲段243朝向主体240厚度方向的一侧弯曲设置,可以使第一段241与第二段242相互靠近,并相对间隔设置,这样既可以便于将弯曲段243插入到定子槽210中,并通过弯曲段243引导第一段241和第二段242进入到定子槽210,而且便于将绕组22置于第一段241与第二段242之间,以方便将绕组22安装在定子槽210中,便于组装。另外,弯曲段243的设置,还可以减小定子槽210的槽口的侧壁对弯曲段243的刮伤,提升绝缘性能。
第一翻折部261与第一段241远离弯曲段243的一端相连是指,第一段241位于弯曲段243与第一翻折部261之间,通过第一段241连接第一翻折部261与弯曲段243。
第二翻折部262与第二段242远离弯曲段243的一端相连是指,第二段242位于弯曲段243与第二翻折部262之间,通过第二段242连接第二翻折部262与弯曲段243。
设置第一段241经弯曲段243,弯曲过渡到第二段242,再将主体240插入到定子槽210中时,可以先插入弯曲段243,并引导第一段241与第二段242插入到定子槽210中,以便安装。
在一些实施例中,弯曲段243包括第一子段2431、相对第一子段2431倾斜设置的第二子段2432,第一子段2431与第二子段2432相连,第一段241与第一子段2431相连,第二段242与第二子段2432相连。
第一子段2431是指弯曲段243的一部分区域。
第二子段2432是指弯曲段243的一部分区域。
第一子段2431与第二子段2432相连,并且第一子段2431相对第二子段2432倾斜设置,以实现第一子段2431至第二子段2432的弯曲设置。
第一段241与第一子段2431相连是指,第一子段2431位于第一段241与第二子段2432之间,第一子段2431连接第一段241与第二子段2432。
第二段242与第二子段2432相连是指,第二子段2432位于第二段242与第一子段2431之间,第二子段2432连接第二段242与第一子段2431。
通过设置相互倾斜的第一子段2431和第二子段2432,制作方便,也便于插入到定子槽210中。
在一些实施例中,请参阅图7、图8、图9和图11,弯曲段243还包括第一导向段2434和第二导向段2435,第一导向段2434连接第一子段2431与第一段241,第一导向段2434与第一子段2431呈钝角折弯设置;第二导向段2435连接第二子段2432与第二段242,第二导向段2435与第二子段2432呈钝角折弯设置。
第一导向段2434是指弯曲段243靠近第一段241的部分区域。
第一导向段2434位于第一子段2431与第一段241之间,并且连接第一子段2431与第一段241。
第一导向段2434与第一子段2431呈钝角折弯设置是指,第一导向段2434与第一子段2431之间的夹角为钝角。
第二导向段2435是指弯曲段243靠近第二段242的部分区域。
第二导向段2435位于第二子段2432与第二段242之间,并且连接第二子段2432与第二段242。
第二导向段2435与第二子段2432呈钝角折弯设置是指,第二导向段2435与第二子段2432之间的夹角为钝角。
设置第一导向段2434和第二导向段2435,第一子段2431和第二子段2432插入定子槽210中时,可以使第一导向段2434及第二导向段2435与定子槽210的侧壁的倾角较小,以便进入定子槽210,并减小对第一导向段2434和第二导向段2435的刮伤。
在一些实施例中,请参阅图7、图8、图9和图11,第一子段2431与第二子段2432通过弧形段2433过渡连接。
弧形段2433是指弯曲段243中位于第一子段2431与第二子段2432之间的部分区域,弧形段2433在宽度上弯曲呈弧形。弧形段2433的两端分别连接第一子段2431与第二子段2432。
设置弧形段2433,以减小第一子段2431与第二子段2432连接处的折痕损伤,以提升槽绝缘纸23的绝缘性能。
在一些实施例中,主体240是一体成型结构。
主体240是一体成型结构是指,主体240是一体制作成型,如可以使用较大宽的绝缘纸,以弯折形成。
将主体240一体成型,以方便加工制作,并提升主体240的绝缘性能。
在一些实施例中,可以将主体240的各部分通过粘接等方式固定连接。
在一些实施例中,槽绝缘纸23是一体成型结构。
槽绝缘纸23是一体成型是指,槽绝缘纸23整体是一体成型,如可以使用较大的绝缘纸,直接冲压成型。
将槽绝缘纸23一体成型,可以便于制作,提升槽绝缘纸23整体的绝缘性能。
在一些实施例中,请参阅图7、图8、图9和图11,第一覆盖部251由第一翻折部261远离主体240的一端折弯延伸设置。也就是,第一翻折部261的一部分折弯形成第一覆盖部251。
将第一翻折部261的一端部折弯,以形成第一覆盖部251,便于加工制作。
在一些实施例中,第一覆盖部251可以单独制作后,再与第一翻折部261相连。
在一些实施例中,第二覆盖部252由第二翻折部262远离主体240的一端折弯延伸设置。也就是,第二翻折部262的一部分折弯形成第二覆盖部252。
将第二翻折部262的一端部折弯,以形成第二覆盖部252,便于加工制作。
在一些实施例中,第二覆盖部252可以单独制作后,再与第二翻折部262相连。
在一些实施例中,第一翻折部261由主体240的一端折弯延伸设置。也就是,主 体240的一部分折弯形成第一翻折部261。
将主体240的一端部折弯,以形成第一翻折部261,便于加工制作。
在一些实施例中,第一翻折部261可以单独制作后,再与主体240相连。
在一些实施例中,第二翻折部262由主体240的另一端折弯延伸设置。也就是,主体240的一部分折弯形成第二翻折部262。
将主体240的另一端部折弯,以形成第二翻折部262,便于加工制作。
在一些实施例中,第二翻折部262可以单独制作后,再与主体240相连。
在一些实施例中,第一翻折部261与主体240经弧形过渡连接,也就是说,第一翻折部261与主体240的连接处呈弧形状。将第一翻折部261弧形过渡至主体240,可以减小折痕损伤,以提升槽绝缘纸23的绝缘性能。
在一些实施例中,第二翻折部262与主体240经弧形过渡连接,也就是说,第二翻折部262与主体240的连接处呈弧形状。将第二翻折部262弧形过渡至主体240,可以减小折痕损伤,以提升槽绝缘纸23的绝缘性能。
在一些实施例中,第一覆盖部251与第一翻折部261经弧形过渡连接,第一覆盖部251与第一翻折部261的连接处呈弧形。将第一覆盖部251弧形过渡至第一翻折部261,可以减小折痕损伤,以提升槽绝缘纸23的绝缘性能。
在一些实施例中,第二覆盖部252与第二翻折部262经弧形过渡连接,第二覆盖部252与第二翻折部262的连接处呈弧形状。将第二覆盖部252弧形过渡至第二翻折部262,可以减小折痕损伤,以提升槽绝缘纸23的绝缘性能。
在一些实施例中,请参阅图7至图11,第一覆盖部251的宽度H1可以设置为大于第二覆盖部252的宽度H2;第一覆盖部251的宽度H1也可以设置为小于第二覆盖部252的宽度H2;第一覆盖部251的宽度H1还可以设置为等于第二覆盖部252的宽度H2,具体可以根据需要设置,在此不作唯一限定。
在一些实施例中,请参阅图7至图11,第一覆盖部251与第一翻折部261之间的夹角为a,第二覆盖部252与第二翻折部262之间的夹角为b,可以将a设置为大于b,也可以将a设置为小于b,还可以将a设置等于b,具体可以根据需要设置,在此不作唯一限定。
在一些实施例中,通过a和b的大小调节,以及H1和H2的调节,实现调节第一覆盖部251与第二覆盖部252在叠合时与绕组22的相对位置,具体可以根据需要进行调节。
在一些实施例中,请参阅图7至图11,第一覆盖部251与第一翻折部261之间的夹角a的范围为80度-120度,如可以为80度、90度、100度、110度、120度等,以便第一覆盖部251可以良好移动到绕组22靠近定子槽210的槽口一侧,也便于第一覆盖部251与第二覆盖部252叠合。当第一覆盖部251与第一翻折部261之间的夹角a过小,如小于80度,在第一翻折部261带动第一覆盖部251向绕组22移动时,易被绕组22侧面止挡。而当第一覆盖部251与第一翻折部261之间的夹角a过大,如大于120度,在第一翻折部261带动第一覆盖部251向绕组22移动后,第一覆盖部251与第二覆盖部252之间张开过大,而难以叠合。
在一些实施例中,请参阅图7至图11,第二覆盖部252与第二翻折部262之间的 夹角b的范围为80度-120度,如可以为80度、90度、100度、110度、120度等,以便第二覆盖部252可以良好移动到绕组22靠近定子槽210的槽口一侧,也便于第二覆盖部252与第一覆盖部251叠合。当第二覆盖部252与第二翻折部262之间的夹角b过小,如小于80度,在第二翻折部262带动第二覆盖部252向绕组22移动时,易被绕组22侧面止挡。而当第二覆盖部252与第二翻折部262之间的夹角b过大,如大于120度,在第二翻折部262带动第二覆盖部252向绕组22移动后,第二覆盖部252与第一覆盖部251之间张开过大,而难以叠合。
在一些实施例中,请参阅图7至图11,主体240与第一翻折部261之间的夹角m的范围为90度-150度,如可以为90度、100度、110度、120度、130度、140度、150度等,在主体240弯曲后插入定子槽210中时,可以方便安装绕组22,并且在绕组22压入定子槽210中时,便于推动第一翻折部261进入定子槽210,减小定子槽210的侧壁对第一翻折部261的阻力,减小对第一翻折部261的刮损,提升绝缘性能。当主体240与第一翻折部261之间的夹角m过小,如小于90度,在第一翻折部261进入定子槽210之前,第一翻折部261与定子槽210的槽壁之间的夹角过小,会导致第一翻折部261难以导入定子槽210,甚至可能因阻力过大,而导致第一翻折部261损坏。当主体240与第一翻折部261之间的夹角m过大,如大于150度,在主体240宽度方向的中部弯曲插入到定子槽210中后,第一覆盖部251与第二覆盖部252之间的间距会较小,这使得绕组22安装不方便。
在一些实施例中,请参阅图7至图11,主体240与第二翻折部262之间的夹角n的范围为90度-150度,如可以为90度、100度、110度、120度、130度、140度、150度等,在主体240弯曲后插入定子槽210中时,可以方便安装绕组22,并且在绕组22压入定子槽210中时,便于推动第二翻折部262进入定子槽210,减小定子槽210的侧壁对第二翻折部262的阻力,减小对第二翻折部262的刮损,提升绝缘性能。当主体240与第二翻折部262之间的夹角n过小,如小于90度,在第二翻折部262进入定子槽210之前,第二翻折部262与定子槽210的槽壁之间的夹角过小,会导致第二翻折部262难以导入定子槽210,甚至可能因阻力过大,而导致第二翻折部262损坏。当主体240与第二翻折部262之间的夹角n过大,如大于150度,在主体240宽度方向的中部弯曲插入到定子槽210中后,第二覆盖部252与第二覆盖部252之间的间距会较小,这使得绕组22安装不方便。
请一并参阅图6和图12,本申请一些实施例的定子20还包括用于抵压槽绝缘纸23的第一覆盖部251与第二覆盖部252的定位件27,定位件27安装于定子槽210中。
定位件27是指设于定子槽210中,用来抵压槽绝缘纸23的第一覆盖部251与第二覆盖部252,以使第一覆盖部251与第二覆盖部252保持叠合的结构件。定位件27一般可以使用塑料、橡胶、电木等非导磁且非导电材料制作,这样一方面可以减小定子齿211间的漏磁,另一方面可以减小涡流损耗。
绕组22推动槽绝缘纸23进入定子槽210中后,第一覆盖部251与第二覆盖部252不会完全叠合在绕组22上,这时安装定位件27,通过定位件27的抵压固定,可以使第一覆盖部251与第二覆盖部252抵持在绕组22上,以更好地包绕绕组22,提升绝缘性能。
设置定位件27,以抵压第一覆盖部251与第二覆盖部252,从而将槽绝缘纸23靠近定子槽210的槽口的一侧进行定位,可以良好地防止第一覆盖部251与第二覆盖部252相对绕组22翘起,以更好地围绕绕组22,提升绝缘性能。
在一些实施例中,可以将第一覆盖部251与第二覆盖部252粘接相连。
在一些实施例中,定子槽210的侧壁上设有用于卡接定位件27的卡槽。
卡槽是指设于定子槽210的侧壁上的凹槽结构。
在定子槽210的侧壁上设置卡槽,以便卡接定位件27,便于定位件27的安装固定。
在一些实施例中,请参阅图13,弯曲段243仅包括第一子段2431、弧形段2433和第二子段2432,结构简单,加工制作方便。
在一些实施例中,请参阅图14,弯曲段243呈弧形。弯曲段243设置呈弧形,可以便于加工制作,以引导第一段241和第二段242进入定子槽210。
在一些实施例中,请参阅图15,弯曲段243包括依次相连的多个折线段。弯曲段243设置多个折线段,并将多个折线段依次相连,以形成弯曲段243,可以方便加工制作。
在一些实施例中,请参阅图16,主体240在使用前,也可以设置呈平板状,以便加工制作,而且在存放时,可以方便堆叠,减小占用空间。
根据本申请的一些实施例中,请参阅图6至图11,本申请实施例提供的槽绝缘纸23包括依次连接的第一覆盖部251、第一翻折部261、主体240、第二翻折部262和第二覆盖部252,第一覆盖部251由第一翻折部261远离主体240的一端朝向主体240厚度方向的一侧折弯延伸设置。第二覆盖部252由第二翻折部262远离主体240的一端朝向主体240厚度方向的一侧折弯延伸设置。第一翻折部261由主体240的一端朝向主体240厚度方向的另一侧折弯延伸设置,第二翻折部262由主体240的另一端朝向主体240厚度方向的另一侧折弯延伸设置,主体240包括第一段241、第二段242和弯曲段243,弯曲段243朝向主体240厚度方向的一侧弯曲设置,第一段241与第二段242相对设置,弯曲段243的两端分别连接第一段241与第二段242,第一翻折部261与第一段241远离弯曲段243的一端相连,第二翻折部262与第二段242远离弯曲段243的一端相连。在使用时,通过绕组22将槽绝缘纸23推入定子槽210中后,可以实现绕组22的自动包绕,安装方便,效率高。
根据本申请的一些实施例中,请参阅图6至图11,本申请实施例还提供了一种定子20,包括如上任一实施例所述的槽绝缘纸23。通过上述槽绝缘纸23的设置,可以便于定子20的组装。
在一些实施例中,请参阅图6至图11,定子20还包括定子铁芯21和绕组22,定子铁芯21的侧面设有定子齿211,相邻定子齿211之间形成定子槽210,槽绝缘纸23和绕组22置于定子槽210中,槽绝缘纸23包绕绕组22,以使绕组22与定子槽210的槽壁间的绝缘性能良好。
根据本申请的一些实施例中,本申请实施例还提供了一种轴向电机100,包括如上述实施例所述的定子20。
根据本申请的一些实施例中,本申请实施例还提供了一种电驱总成1001,包括如上述实施例所述的轴向电机100。
根据本申请的一些实施例中,本申请实施例还提供了一种驱动设备,包括如上述实施例所述的轴向电机100;或者包括如上述实施例所述的电驱总成1001。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围,其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是,只要不存在结构冲突,各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例,而是包括落入权利要求的范围内的所有技术方案。

Claims (19)

  1. 一种槽绝缘纸,其特征在于,包括:
    主体,一侧宽度方向的中部可朝向厚度方向的一侧弯曲以用于置于定子的定子槽中;
    第一覆盖部,设于所述主体宽度方向的一端,并朝向所述主体厚度方向的一侧延伸设置;
    第二覆盖部,设于所述主体宽度方向的另一端,并朝向所述主体厚度方向的一侧延伸设置;
    第一翻折部,设于所述主体与所述第一覆盖部之间,并朝向所述主体厚度方向的另一侧延伸设置;
    第二翻折部,设于所述主体与所述第二覆盖部之间,并朝向所述主体厚度方向的另一侧延伸设置。
  2. 如权利要求1所述的槽绝缘纸,其特征在于:所述第一覆盖部与所述第二覆盖部的宽度之和大于或等于所述定子槽的宽度。
  3. 如权利要求1或2所述的槽绝缘纸,其特征在于,所述第一覆盖部与所述第二覆盖部的宽度之和与所述定子槽的宽度之差的范围大于或等于1mm。
  4. 如权利要求1-3任一项所述的槽绝缘纸,其特征在于,所述主体包括第一段、第二段和弯曲段,所述弯曲段朝向所述主体厚度方向的一侧弯曲设置,所述弯曲段用于引用所述第一段和所述第二段进入所述定子槽,所述第一段与所述第二段相对设置,所述弯曲段的两端分别连接所述第一段与所述第二段,所述第一翻折部与所述第一段远离所述弯曲段的一端相连,所述第二翻折部与所述第二段远离所述弯曲段的一端相连。
  5. 如权利要求4所述的槽绝缘纸,其特征在于:所述弯曲段呈弧形,或者,所述弯曲段包括依次相连的多个折线段。
  6. 如权利要求4或5所述的槽绝缘纸,其特征在于,所述弯曲段包括第一子段、与所述第一子段倾斜设置的第二子段,所述第一子段与所述第二子段相连,所述第一段与所述第一子段相连,所述第二段与所述第二子段相连。
  7. 如权利要求6所述的槽绝缘纸,其特征在于,所述弯曲段还包括第一导向段和第二导向段,所述第一导向段连接所述第一子段与所述第一段,所述第一导向段与所述第一子段呈钝角折弯设置;所述第二导向段连接所述第二子段与所述第二段,所述第二导向段与所述第二子段呈钝角折弯设置。
  8. 如权利要求6或7所述的槽绝缘纸,其特征在于:所述第一子段与所述第二子段通过弧形段过渡连接。
  9. 如权利要求1-8任一项所述的槽绝缘纸,其特征在于:所述主体是一体成型结构。
  10. 如权利要求1-9任一项所述的槽绝缘纸,其特征在于:所述槽绝缘纸是一体成型结构。
  11. 如权利要求10所述的槽绝缘纸,其特征在于:所述第一覆盖部由所述第一翻折部远离所述主体的一端折弯延伸设置;
    和/或,所述第二覆盖部由所述第二翻折部远离所述主体的一端折弯延伸设置;
    和/或,所述第一翻折部由所述主体的一端折弯延伸设置;
    和/或,所述第二翻折部由所述主体的另一端折弯延伸设置。
  12. 如权利要求10或11所述的槽绝缘纸,其特征在于:所述第一翻折部与所述主体经弧形过渡连接;
    和/或,所述第二翻折部与所述主体经弧形过渡连接;
    和/或,所述第一覆盖部与所述第一翻折部经弧形过渡连接;
    和/或,所述第二覆盖部与所述第二翻折部经弧形过渡连接。
  13. 一种定子,其特征在于:包括如权利要求1-12任一项所述的槽绝缘纸。
  14. 如权利要求13所述的定子,其特征在于:还包括定子铁芯和绕组,所述定子铁芯上设有多个定子齿,相邻所述定子齿之间形成定子槽,所述绕组安装于所述定子槽中,所述槽绝缘纸置于所述定子槽中,所述槽绝缘纸围绕所述绕组设置。
  15. 如权利要求14所述的定子,其特征在于:还包括用于抵压所述槽绝缘纸的第一覆盖部与第二覆盖部的定位件,所述定位件安装于所述定子槽中。
  16. 如权利要求15所述的定子,其特征在于:所述定子槽的侧壁上设有用于卡接所述定位件的卡槽。
  17. 一种轴向电机,其特征在于:包括如权利要求13-16任一项所述的定子。
  18. 一种电驱总成,其特征在于:包括如权利要求17所述的轴向电机。
  19. 一种驱动设备,其特征在于:包括如权利要求17所述的轴向电机;或者包括如权利要求18所述的电驱总成。
PCT/CN2024/084873 2023-06-26 2024-03-29 槽绝缘纸、定子、轴向电机、电驱总成及驱动设备 Ceased WO2025001380A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310764792.9A CN119209995A (zh) 2023-06-26 2023-06-26 槽绝缘纸、定子、轴向电机、电驱总成及驱动设备
CN202310764792.9 2023-06-26

Publications (1)

Publication Number Publication Date
WO2025001380A1 true WO2025001380A1 (zh) 2025-01-02

Family

ID=93937099

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/084873 Ceased WO2025001380A1 (zh) 2023-06-26 2024-03-29 槽绝缘纸、定子、轴向电机、电驱总成及驱动设备

Country Status (2)

Country Link
CN (1) CN119209995A (zh)
WO (1) WO2025001380A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016135060A (ja) * 2015-01-22 2016-07-25 トヨタ自動車株式会社 回転電機ステータ
CN110311494A (zh) * 2018-03-20 2019-10-08 本田技研工业株式会社 旋转电机用定子及电动车辆
CN110311495A (zh) * 2018-03-20 2019-10-08 本田技研工业株式会社 旋转电机用定子的组装方法及电动车辆的组装方法
CN214124982U (zh) * 2021-01-07 2021-09-03 恒大恒驰新能源汽车研究院(上海)有限公司 一种槽纸、定子结构及电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016135060A (ja) * 2015-01-22 2016-07-25 トヨタ自動車株式会社 回転電機ステータ
CN110311494A (zh) * 2018-03-20 2019-10-08 本田技研工业株式会社 旋转电机用定子及电动车辆
CN110311495A (zh) * 2018-03-20 2019-10-08 本田技研工业株式会社 旋转电机用定子的组装方法及电动车辆的组装方法
CN214124982U (zh) * 2021-01-07 2021-09-03 恒大恒驰新能源汽车研究院(上海)有限公司 一种槽纸、定子结构及电机

Also Published As

Publication number Publication date
CN119209995A (zh) 2024-12-27

Similar Documents

Publication Publication Date Title
JP3752431B2 (ja) 回転電機及びその製造方法
JP3613262B2 (ja) 回転電機およびその製造方法
US20100001609A1 (en) Rotating electric machine
JPS6258235B2 (zh)
CN101436796A (zh) 旋转电机及具备该旋转电机的车载用电机系统
JP2006101654A (ja) 回転電機及び電機巻線
CN103283123A (zh) 旋转电机
JP5233417B2 (ja) 回転電機
WO2024060039A1 (zh) 电机、定子及定子的制造方法
KR20010087113A (ko) 영구자석식 회전전기를 사용한 하이브리드 전기자동차
JP5909790B2 (ja) 回転電機、回転電機用ステータおよび車両
TW201818638A (zh) 永久磁鐵式旋轉電動機、及使用此的壓縮機
KR20060027704A (ko) 인슐레이터를 구비한 전동모터의 고정자
JP2009044829A (ja) アキシャルギャップ型モータ用のステータコア
WO2019102736A1 (ja) 回転電機、固定子
JP2014027873A (ja) モータ
CN114497756A (zh) 一种卷针驱动装置、卷绕头及卷绕机
CN119209995A (zh) 槽绝缘纸、定子、轴向电机、电驱总成及驱动设备
WO2024216957A1 (zh) 电机转子、电机、动力总成及电动设备
CN110168864B (zh) 旋转电机
CN218549718U (zh) 一种三相直流无刷电机
CN221531091U (zh) 一种定子支架、电机及电动设备
CN223912395U (zh) 电机定子组件、电机及车辆用动力系统
US5791585A (en) Apparatus for maintaining the position of a rotating bobbin relative to a transformer core leg
CN216564676U (zh) 电机及其电机定子

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24830030

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 24830030

Country of ref document: EP

Kind code of ref document: A1