WO2025200440A1 - 定子组件、直线电机、悬架组件和车辆 - Google Patents

定子组件、直线电机、悬架组件和车辆

Info

Publication number
WO2025200440A1
WO2025200440A1 PCT/CN2024/128987 CN2024128987W WO2025200440A1 WO 2025200440 A1 WO2025200440 A1 WO 2025200440A1 CN 2024128987 W CN2024128987 W CN 2024128987W WO 2025200440 A1 WO2025200440 A1 WO 2025200440A1
Authority
WO
WIPO (PCT)
Prior art keywords
water channel
cooling water
stator
assembly
core shaft
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.)
Pending
Application number
PCT/CN2024/128987
Other languages
English (en)
French (fr)
Inventor
刘军
马冰青
谭国栋
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.)
BYD Co Ltd
Original Assignee
BYD Co 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 BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025200440A1 publication Critical patent/WO2025200440A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K41/00Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02Linear motors; Sectional motors
    • H02K41/03Synchronous motors; Motors moving step by step; Reluctance motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21Devices for sensing speed or position, or actuated thereby
    • H02K11/215Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets

Definitions

  • a motor comprises a primary assembly, a secondary assembly, and a position detection assembly.
  • the position detection assembly includes a first detection component and a second sensing element, which work together to detect relative motion between the primary and secondary assemblies.
  • a water channel is also provided on the primary assembly. The arrangement of the water channel and the detection assembly is unreasonable, reducing space utilization and hindering the simplification of the motor structure.
  • the present application aims to at least solve the technical problems existing in the prior art. To this end, the present application proposes a stator assembly that improves the structural compactness of the stator assembly by arranging the water channel and the first detection component at intervals in the circumferential direction, thereby simplifying the motor structure.
  • the stator assembly includes: a stator winding, a stator core shaft, and a first detection component.
  • a first cooling water channel and a second cooling water channel extending in the axial direction of the stator core shaft are provided in the shaft wall of the stator core shaft, and the first cooling water channel and the second cooling water channel are used at least to cool the stator winding;
  • the first detection component is provided on the shaft wall of the stator core shaft, and the first detection component is used to detect the position of the mover assembly; wherein, in the circumferential direction of the stator core shaft, the first detection component, the first cooling water channel and the second cooling water channel are arranged at intervals.
  • stator assembly according to the above embodiment of the present application may also have the following additional technical features:
  • a first end of the first cooling water channel is provided with a water channel inlet
  • the second cooling water channel is provided with a water channel inlet.
  • a water channel outlet is provided at the first end of the water channel, the water channel inlet and the water channel outlet are located on the same side of the stator core shaft, and the second end of the first cooling water channel is connected to the second end of the second cooling water channel.
  • an outer peripheral wall of the stator core shaft is provided with a placement groove, and the first detection component is arranged in the placement groove.
  • one axial end of the placement slot is open to define a mounting opening for the first detection component, and the stator assembly further includes a blocking member for blocking the mounting opening.
  • the cover is externally mounted on the outer peripheral wall of the stator core shaft.
  • the suspension assembly according to the embodiment of the present application includes the aforementioned linear motor.
  • the suspension assembly of the embodiment of the present application by arranging the aforementioned linear motor on the suspension assembly, and the first detection component, the first cooling water channel and the second cooling water channel in the linear motor are arranged at circumferential intervals along the stator core shaft, the compactness of the structure can be improved, which is conducive to simplifying the structure of the suspension assembly and improving the stability of the operation of the suspension assembly.
  • the vehicle according to the embodiment of the present application includes the front suspension assembly according to .
  • the vehicle structure can be simplified and the vehicle operation stability can be improved.
  • FIG1 is a schematic structural diagram of a stator assembly in some embodiments of the present application.
  • FIG2 is a cross-sectional view of the stator assembly and the conductive assembly in some embodiments of the present application;
  • FIG3 is a schematic diagram of a partial structure of a stator assembly in some embodiments of the present application (wherein the conductive assembly and stator winding are not shown);
  • FIG5 is a schematic structural diagram of a stator core shaft in some embodiments of the present application.
  • FIG6 is a schematic structural diagram of a stator assembly in some embodiments of the present application (showing a state where a cover plate covers the first detection component);
  • the first cooling water channel 110 and the second cooling water channel 120 extend in the axial direction of the stator core shaft 11, which can increase the extension length of the cooling water channel and increase the matching area between the cooling water channel and the stator core shaft 11, thereby improving heat exchange efficiency and cooling effect.
  • the stator assembly 100 also includes a first detection component 31, which is disposed on the axial wall of the stator core shaft 11 and is used to detect the position of the moving assembly.
  • the first detection component 31, the first cooling water channel 110, and the second cooling water channel 120 are spaced apart in the circumferential direction of the stator core shaft 11. Specifically, when the motor is operating, the moving assembly and the stator assembly 100 will move relative to each other. By providing the first detection component 31, the position change of the moving assembly can be detected, which helps to improve the stability and accuracy of the detection, thereby improving the operating stability of the motor.
  • the first detection component 31, the first cooling water channel 110, and the second cooling water channel 120 are spaced apart in the circumferential direction of the stator core shaft 11.
  • stator assembly 100 of the embodiment of the present application by reasonably arranging the positions of the first detection component 31, the first cooling water channel 110 and the second cooling water channel 120 on the stator core shaft 11, the structural compactness of the stator assembly 100 can be improved and the cooling effect can be improved.
  • a first end of the first cooling water channel 110 is provided with a water channel inlet 101
  • a first end of the second cooling water channel 120 is provided with a water channel outlet 102
  • the second end of the first cooling water channel 110 is connected to the second end of the second cooling water channel 120.
  • the first cooling water channel 110 is connected to the second cooling water channel 120, and the cooling medium can enter from the water channel inlet 101 of the first cooling water channel 110 and then flow through the first cooling water channel 110 and the second cooling water channel 120.
  • the cooling water channel 120 then flows out from the water channel outlet 102 of the second cooling water channel 120.
  • the stator core shaft 11 has a first end and a second end in the axial direction, and the water channel inlet 101 and the water channel outlet 102 can be provided at the first end or the second end of the stator core shaft 11 .
  • the first detection component 31 is located between the first cooling water channel 110 and the second cooling water channel 120, which can improve space utilization and help improve structural balance. That is, the first detection component 31 separates the first cooling water channel 110 and the second cooling water channel 120, or the first detection component 31, the first cooling water channel 110 and the second cooling water channel 120 are staggered along the circumferential direction. Specifically, since the first cooling water channel 110 and the second cooling water channel 120 are arranged in the axial wall of the stator core shaft 11, the strength of the position where the water channel is located is slightly weak.
  • the first and second cooling channels 110, 120 are less likely to interfere with each other circumferentially around the stator shaft 11. This allows for the appropriate increase in area to ensure sufficient heat exchange between the cooling medium within the channels.
  • the dimensions of the first and second cooling channels 110, 120 can be tailored to the size of the first detection component 31, fully utilizing the circumferential space around the stator shaft 11.
  • the inner circumferential wall of the stator core shaft 11 is further provided with a first, second, and third radially inwardly projecting boss 111, 112, and 113.
  • These bosses 111, 112, and 113 are spaced apart circumferentially around the stator core shaft 11. Specifically, by providing multiple bosses on the inner wall of the stator core shaft 11 and spacing them apart, support can be provided for the stator core shaft 11, enhancing its structural strength.
  • the first cooling water channel 110 can be provided within the first boss 111
  • the second cooling water channel 120 can be provided within the second boss 112
  • the first detection component 31 can be provided on the outer circumferential wall of the stator core shaft 11 corresponding to the third boss 113.
  • three side holes 104 are formed by the first boss 111, the second boss 112, and the third boss 113 in the circumferential direction of the stator core shaft 11.
  • a middle hole 105 is formed radially inwardly of the first boss 111, the second boss 112, and the third boss 113.
  • the middle hole 105 is located radially inwardly of the first cooling water channel 110 and the second cooling water channel 120.
  • the three side holes 104 are respectively provided between the first cooling water channel 110 and the second cooling water channel 120, between the first cooling water channel 110 and the first detection component 31, and between the second cooling water channel 120 and the first detection component 31.
  • the three side holes 104 can separate the first detection component 31, the first cooling water channel 110, and the second cooling water channel 120 along the circumferential direction.
  • the first cooling water channel 110 and the second cooling water channel 120 jointly exchange heat with the conductive component 40 and the stator winding 12. That is, the first cooling water channel 110 and the second cooling water channel 120 can both exchange heat with the stator winding 12 and the conductive component 40, and the first cooling water channel 110 and the second cooling water channel 120 cooperate with each other to improve the cooling effect.
  • the stator core shaft 11 includes a first shaft segment 115 and a second shaft segment 116.
  • the shaft diameter of the shaft segment 115 is larger than that of the second shaft segment 116 .
  • the conductive component 40 is disposed in the first shaft segment 115 , and the stator winding 12 is sleeved in the second shaft segment 116 .
  • the bottom end of the first shaft segment 115 is connected to the top end of the second shaft segment 116. Since the axial diameter of the first shaft segment 115 is larger than the axial diameter of the second shaft segment 116, the conductive component 40 can be set in the first shaft segment 115 to ensure that the conductive component 40 has sufficient installation space.
  • the stator winding 12 is arranged on the radial outside of the second shaft segment 116, and the end of the conductive component 40 close to the second shaft segment 116 in the axial direction is electrically connected to the stator winding 12. By setting the conductive component 40 in the first shaft segment 115, the conductive component 40 is electrically connected to the stator winding 12 and the motor controller.
  • one axial end of the placement groove 103 is open to define a mounting opening of the first detection component 31, so that the first detection component 31 can be assembled in the placement groove 103 from the mounting opening.
  • the stator assembly 100 also includes a sealing member 60 for sealing the mounting opening, which can seal the mounting opening after assembly, stably position the first detection component 31 in the placement groove 103, and protect the sensing component from interference from the external environment, thereby improving the detection effect of the first detection component 31.
  • the cover 50 is externally mounted on the outer peripheral wall of the stator core shaft 11 , thereby the cover 50 can protect the stator core shaft 11 and enhance the overall structural strength of the stator core shaft 11 .
  • the cover 50 in combination with Figures 6 and 7, includes a main body 51 and a cover plate 52.
  • the main body 51 and the cover plate 52 are separate parts.
  • the main body 51 is fixed to the stator core shaft 11 and is a magnetic conductive material part, that is, the main body 51 can improve the structural stability of the stator core shaft 11, and is conducive to guiding and concentrating the magnetic field, which is conducive to improving the working efficiency and performance of the stator assembly 100.
  • the cover plate 52 is fixed to the main body 51 and is arranged radially opposite to the first detection component 31.
  • the cover plate 52 is made of non-magnetic material. Specifically, the magnetic field generated by the magnetic strip of the first detection component 31 will not pass through the non-magnetic material, so that the second detection component on the mover assembly can read the waveform of the first detection component 31.
  • the cover 50 can be constructed in the form of a part of magnetic material and a part of non-magnetic material, which can improve the structural strength. At the same time, the detection effect is guaranteed.
  • a cover 50 can be sleeved on the outer peripheral wall of the stator core shaft 11.
  • the cover 50 includes a main body 51 and a cover plate 52.
  • the main body 51 with higher hardness and strength that is, a magnetic stainless steel material
  • an opening can be provided on the main body 51, and the position of the opening is opposite to the first detection component 31.
  • the cover plate 52 is assembled at the opening.
  • the cover plate 52 can be a non-magnetic steel material, and the main body 51 and the cover plate 52 can be welded as a whole.
  • Figure 6 shows the state when the cover plate 52 covers the first detection component
  • Figure 7 shows the state when the cover plate 52 is separated from the main body 51.
  • the first detection component 31 can detect position by detecting changes in the magnetic field. By configuring the cover plate 52 as a non-magnetic member, interference with the first detection component 31 caused by the magnetization of the cover plate 52 can be avoided, thereby ensuring that the magnetic field of the first detection component 31 is not affected and improving detection accuracy.
  • the first detection component 31 can be a magnetic position sensor.
  • mounting bosses 53 provide a stable support point for the stator core shaft 11. For example, they provide a stable support point when assembling the stator core shaft 11 with other components, facilitating the fixing and support of the stator core shaft 11, thereby facilitating assembly of the stator core shaft 11 with other components.
  • Multiple mounting bosses 53 can be arranged at intervals along the circumference of the stator core shaft 11 to enhance support effectiveness and improve structural stability.
  • the structure of the stator assembly 100 is more compact, thereby improving the structural compactness of the structural motor, simplifying the motor structure, and improving the motor performance.
  • the movable assembly may move relative to the stator assembly 100 , or the stator assembly 100 may move relative to the movable assembly.
  • the suspension assembly 1000 of the embodiment of the present application including the aforementioned linear motor 200, by arranging the aforementioned linear motor on the suspension assembly, and the first detection component 31, the first cooling water channel 110 and the second cooling water channel 120 in the linear motor are arranged at circumferential intervals along the stator core shaft 11, the compactness of the structure can be improved, which is conducive to simplifying the structure of the suspension assembly and improving the stability of the suspension assembly operation.
  • the suspension assembly 1000 of the embodiment of the present application includes the linear motor 200 of any of the above embodiments. It should be noted that, since the suspension assembly in this embodiment includes the linear motor of the above embodiment, the suspension assembly at least includes the same beneficial effects as the motor, which will not be described in detail here.
  • the vehicle 10000 includes the aforementioned suspension assembly 1000.
  • the vehicle structure can be simplified and the vehicle operation stability can be improved.
  • the vehicle further includes a body and wheels, the wheels being mounted on the wheels and capable of moving relative to the body.
  • the suspension assembly further includes a suspension, the linear motor being mounted on the suspension, and one end of the linear motor being connected to the body.
  • the linear motor When the linear motor is operating stably, it can drive the wheels to move relative to the body.
  • the detection device can determine the relative displacement between the body and the wheels based on the positional change between the stator assembly 100 and the mover assembly (or the primary assembly and the secondary assembly).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

一种定子组件(100)、直线电机(200)、悬架组件(1000)和车辆(10000)。定子组件(100)包括:定子绕组(12)、定子芯轴(11)、第一检测部件(31),定子芯轴(11)的轴壁内设有沿定子芯轴(11)的轴向方向延伸的第一冷却水道(110)和第二冷却水道(120),第一冷却水道(110)和第二冷却水道(120)至少用于给定子绕组(12)冷却;第一检测部件(31)设于定子芯轴(11)的轴壁,第一检测部件(31)用于检测动子组件的位置;在定子芯轴(11)的周向上,第一检测部件(31)、第一冷却水道(110)和第二冷却水道(120)间隔设置。

Description

定子组件、直线电机、悬架组件和车辆
相关申请的交叉引用
本申请基于申请号为:2024206630780,申请日为2024年03月29日的中国专利申请提出,并要求该中国专利申请的优先权,该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及车辆技术领域,尤其是涉及一种定子组件、直线电机、悬架组件及车辆。
背景技术
一般地,电机包括初级组件、次级组件及位置检测组件,位置检测组件包括第一检测部件及第二感应件,第一检测部件和第二感应件配合以检测初级组件和次级组件之间的相对运动。相关技术中,初级组件上还设有水道,水道与检测组件的布置方式不合理,降低了空间利用率,不利于简化电机结构。
申请内容
本申请旨在至少解决现有技术中存在的技术问题。为此,本申请提出一种定子组件,通过将水道和第一检测部件在周向方向间隔排布,可以提高定子组件的结构紧凑性,利于简化电机结构。
根据本申请实施例的定子组件,包括:定子绕组、定子芯轴、第一检测部件,所述定子芯轴的轴壁内设有沿所述定子芯轴的轴向方向延伸的第一冷却水道和第二冷却水道,所述第一冷却水道和所述第二冷却水道至少用于给所述定子绕组冷却;所述第一检测部件设于所述定子芯轴的轴壁,所述第一检测部件用于检测动子组件的位置;其中,在所述定子芯轴的周向上,所述第一检测部件、所述第一冷却水道和所述第二冷却水道间隔设置。
根据本申请实施例的定子组件,通过合理布置第一检测部件、第一冷却水道和第二冷却水道在定子芯轴上的位置,可以提高定子组件的结构紧凑性,提高冷却效果。
另外,根据本申请上述实施例的定子组件还可以具有如下附加的技术特征:
在本申请的一些示例中,所述第一冷却水道的第一端设有水道入口,所述第二冷却 水道的第一端设有水道出口,所述水道入口和所述水道出口位于所述定子芯轴的同一侧,所述第一冷却水道的第二端和所述第二冷却水道的第二端连通。
在本申请的一些示例中,所述定子芯轴的内周壁还设有径向内凸的第一凸台、第二凸台和第三凸台,在所述定子芯轴的周向上,所述第一凸台、所述第二凸台和所述第三凸台间隔设置,所述第一冷却水道设于所述第一凸台内,所述第二冷却水道设于所述第二凸台内,所述第一检测部件设于所述第三凸台对应的所述定子芯轴的外周壁上。
在本申请的一些示例中,所述定子组件还包括导电组件,所述导电组件包括导电件,所述导电件用于电连接所述定子绕组和电机控制器;所述第一冷却水道和所述第二冷却水道共同与所述导电组件和所述定子绕组热交换。
在本申请的一些示例中,所述定子芯轴的外周壁设有放置槽,所述第一检测部件设于所述放置槽内。
在本申请的一些示例中,还包括覆盖件,所述覆盖件覆盖所述放置槽的开口。
在本申请的一些示例中,所述定子芯轴的一部分周壁构造出所述放置槽。
在本申请的一些示例中,所述放置槽的轴向一端敞开以限定出所述第一检测部件的安装口,所述定子组件还包括封堵所述安装口的封堵件。
在本申请的一些示例中,所述覆盖件外套于所述定子芯轴的外周壁。
在本申请的一些示例中,所述覆盖件包括本体部和盖板,所述本体部和所述盖板为分体件,所述本体部固定至定子芯轴且为导磁材料件,所述盖板固定至所述本体部且与所述第一检测部件径向正对设置,所述盖板为非导磁材料件。
根据本申请实施例的直线电机,包括前述的定子组件,动子组件,所述动子组件上设有第二检测部件,所述第二检测部件与所述第一检测部件配合以检测所述动子组件的位置。
根据本申请实施例的直线电机,通过设置前述的定子组件,可以提高结构电机的结构紧凑性,利于简化电机结构。
根据本申请实施例的悬架组件,包括前述的直线电机。
根据本申请实施例的悬架组件,通过在悬架组件上设置前述的直线电机,且直线电机中第一检测部件、第一冷却水道和第二冷却水道沿定子芯轴的周向间隔设置,可以提高结构紧凑性,利于简化悬架组件的结构,提高悬架组件运行的稳定性。
根据本申请实施例的车辆,包括根据的前悬架组件。
根据本申请实施例的车辆,通过在车辆上应用前述的悬架组件,可以简化车辆结构,提高车辆运行稳定性。
本申请的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,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是本申请一些实施例中定子组件的结构示意图;
图2是本申请一些实施例中定子组件与导电组件配合的剖视图;
图3是本申请一些实施例中定子组件的局部结构示意图(其中导电组件和定子绕组未示出);
图4是本申请一些实施例中定子组件的结构示意图;
图5是本申请一些实施例中定子芯轴的结构示意图;
图6是本申请一些实施例中定子组件的结构示意图(示出了盖板覆盖第一检测部件时的状态);
图7是本申请一些实施例中定子组件的结构示意图(示出了盖板与本体部分体时的状态);
图8是本申请一些实施例中基座的结构示意图;
图9是本申请一些实施例中第一冷却水道和第二冷却水道的模型图;
图10是本申请一些实施例的车辆的示意图。
附图标记:
10000、车辆;1000、悬架系统;200、直线电机;100、定子组件;11、定子芯轴;
111、第一凸台;112、第二凸台;113、第三凸台;115、第一轴段;116、第二轴段;117、第一安装面;118、第二安装面;110、第一冷却水道;110a、第一进水段;110b、第二进水段;101、水道入口;120、第二冷却水道;120a、第一出水段;120b、第二出水段;102、水道出口;103、放置槽;104、边孔;105、中间孔;12、定子绕组;121、引出线;13、定子铁芯;30、检测装置;31、第一检测部件;40、导电组件;41、基座;411、凸筋;412、定位配合部;401、连接槽;42、导电件;50、覆盖件;51、本体部;52、盖板;53、安装凸台;60、封堵件。
具体实施方式
下面详细描述本申请的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本申请,而不能理解为对本申请的限制。
下面参考图1-图9描述根据本申请实施例的定子组件100,定子组件100包括:定子绕组12和定子芯轴11,定子芯轴11的轴壁内设有沿定子芯轴11的轴向方向延伸的第一冷却水道110和第二冷却水道120,第一冷却水道110和第二冷却水道120内可以流通冷却介质,用于给定子绕组12冷却,可以降低定子绕组12工作时的温度,利于提高电机功率保证电机运行稳定性。其中,第一冷却水道110和第二冷却水道120沿定子芯轴11的轴向延伸,可以增大冷却水道的延伸长度,提高冷却水道与定子芯轴11的配合面积,从而提高换热效率和冷却效果。
进一步地,结合图3和图4,定子组件100还包括第一检测部件31,第一检测部件31设于定子芯轴11的轴壁,第一检测部件31用于检测动子组件的位置;其中,在定子芯轴11的周向上,第一检测部件31、第一冷却水道110和第二冷却水道120间隔设置。具体而言,电机工作时,动子组件与定子组件100会产生相对移动,通过设置第一检测部件31可以检测动子组件的位置变化,利于提高检测的稳定性和检测的精准性,从而提高电机的运行稳定性。其中,在定子芯轴11的周向上,第一检测部件31、第一冷却水道110和第二冷却水道120间隔设置,由此,可以充分利用定子芯轴11的周向空间,实现第一检测部件31、第一冷却水道110和第二冷却水道120的合理排布,可以提高定子组件100的结构紧凑性,还可以同时实现位置检测和冷却的效果。此外,第一检测部件31、第一冷却水道110和第二冷却水道120间隔设置,还可以提高定子芯轴11的平衡性。其中,第一检测部件31、第一冷却水道110和第二冷却水道120之间的间隔距离可以相同,以提高定子芯轴11的结构稳定性;也可以是,根据实际应用情况将第一检测部件31、第一冷却水道110和第二冷却水道120设置成间隔距离不同的形式,本申请不限于此。
根据本申请实施例的定子组件100,通过合理布置第一检测部件31、第一冷却水道110和第二冷却水道120在定子芯轴11上的位置,可提高定子组件100的结构紧凑性,提高冷却效果。
结合图2,在本申请的一些实施例中,第一冷却水道110的第一端设有水道入口101,第二冷却水道120的第一端设有水道出口102,第一冷却水道110的第二端和第二冷却水道120的第二端连通。也就是说,第一冷却水道110与第二冷却水道120连通,冷却介质可以从第一冷却水道110的水道入口101进入后流经第一冷却水道110和第二 冷却水道120后从第二冷却水道120的水道出口102流出,冷却介质可以充分流经第一冷却水道110和第二冷却水道120,可以增加冷却介质在冷却水道中的流动时间,提高了换热效率,从而提高冷却效果。其中,水道入口101和水道出口102位于定子芯轴11的同一侧,即冷却介质可以环绕定子芯轴11进行换热,此外,水道入口101和水道出口102位于定子芯轴11的同一侧,一方面可以便于向冷却水道中注入冷却介质和回收冷却介质,能够便于水道入口101和水道出口102与其他结构件的连接,例如,便于水道入口101和水道出口102与外部管道或连接器进行连通,从而能够提升定子组件100的装配效率;另一方面能够减小水道入口101和水道出口102与定子芯轴11的周壁上的结构件(例如定子铁芯13或定子绕组12等)发生干涉的可能性,保证定子组件100的正常装配。可选地,定子芯轴11沿轴向具有第一端和第二端,水道入口101和水道出口102可以设置于定子芯轴11的第一端,或第二端。
结合图2和图3,在本申请的一些实施例中,第一检测部件31位于第一冷却水道110和第二冷却水道120之间,可以提高空间利用率且利于提高结构平衡性。即第一检测部件31间隔开第一冷却水道110和第二冷却水道120,或第一检测部件31、第一冷却水道110和第二冷却水道120沿周向错开布置。具体而言,由于第一冷却水道110和第二冷却水道120设于定子芯轴11的轴壁内,水道所在位置的强度稍弱,因此通过第一检测部件31将第一冷却水道110和第二冷却水道120的布置位置间隔开,可以避免定子组件100的局部结构强度低,提高定子组件100整体结构的稳定性和平衡性。另外,第一冷却水道110和第二冷却水道120在定子芯轴11的周向上不容易发生干涉,可以适当增加第一冷却水道110和第二冷却水道120的面积,使得冷却水道内的冷却介质能进行充分换热。实际应用时,可以根据第一检测部件31的尺寸设置第一冷却水道110和第二冷却水道120的尺寸,从而可以充分利用定子芯轴11的周向空间。
具体地,结合图9,根据本申请一个具体实施例的定子组件100,第一冷却水道110和第二冷却水道120在第二端相连形成“U”形结构,即第一冷却水道110和第二冷却水道120沿定子芯轴11的径向的两侧相对布置,并在定子芯轴11轴向的端部相连,水道入口101和水道出口102设于定子芯轴11轴向的另一端,或“U”形结构的开口端,这样,第一冷却水道110和第二冷却水道120可以环绕定子芯轴11布置,利于增加冷却介质在冷却水道内的流动时间,从而实现充分换热,可以提高冷却效果,可以避免能源浪费。
由于水道为虚体,为了便于理解,图9示出了第一冷却水道110和第二冷却水道120的模型图,结合图9,第一冷却水道110包括第一进水段110a和第二进水段110b, 第一进水段110a和第二进水段110b沿定子芯轴11的轴向相连,第一进水段110a的第一端设有水道入口101,第一进水段110a的第二端与第二进水段110b的第一端连通。第二冷却水道120包括第一出水段120a和第二出水段120b,第一出水段120a和第二出水段120b沿轴向相连,第一出水段120a的第一端设有水道出口102,第一出水段120a的第二端与第二出水段120b的第一端连通。第二进水端的第二端与第二出水段120b的第二端连通。
结合图3,在本申请的一些实施例中,定子芯轴11的内周壁还设有径向内凸的第一凸台111、第二凸台112和第三凸台113,在定子芯轴11的周向上,第一凸台111、第二凸台112和第三凸台113间隔设置,具体地,通过在定子芯轴11内壁设有多个凸台,且多个凸台间隔设置,可以为定子芯轴11提供支撑,增强结构强度。此外,第一冷却水道110可以设于第一凸台111内,第二冷却水道120可以设于第二凸台112内,第一检测部件31设于第三凸台113对应的定子芯轴11的外周壁上。这样,第一凸台111和第二凸台112相对于定子芯轴11周壁凸起的空间可以充分被利用,冷却水道设于凸台内,凸台还可以保护冷却水道,进一步提高结构稳定性,第一检测部件31与第三凸台113相对设置,也可以提高第一检测部件31安装位置的结构稳定性,且便于定位第一检测部件31。由此,第一凸台111、第二凸台112和第三凸台113既可以便于沿周向定位第一冷却水道110、第二冷却水道120和第一检测部件31,还可以提高定子组件100的结构紧凑性和结构强度。
在本申请的一些实施例中,结合图2和图3,在定子芯轴11的周向上,第一凸台111、第二凸台112和第三凸台113形成三个边孔104,在定子芯轴11的径向上,第一凸台111、第二凸台112和第三凸台113的径向内侧形成中间孔105,中间孔105位于第一冷却水道110和第二冷却水道120的径向内侧,其中,三个边孔104分别设在第一冷却水道110和第二冷却水道120之间、第一冷却水道110和第一检测部件31之间、第二冷却水道120和第一检测部件31之间。三个边孔104可以将第一检测部件31、第一冷却水道110和第二冷却水道120沿周向间隔开。
结合图2,在本申请的一些实施例中,定子组件100还包括导电组件40,导电组件40包括导电件42,导电件42用于电连接定子绕组12和电机控制器,以为传递电能。
第一冷却水道110和第二冷却水道120共同与导电组件40和定子绕组12热交换。即第一冷却水道110和第二冷却水道120均可以与定子绕组12和导电组件40进行换热,第一冷却水道110和第二冷却水道120互相配合可以提高冷却效果。
具体而言,结合图2和图5,定子芯轴11包括第一轴段115和第二轴段116,第一 轴段115的轴径大于第二轴段116的轴径,导电组件40设于第一轴段115内,定子绕组12套设于第二轴段116。
第一轴段115的底端与第二轴段116的顶端相连,由于第一轴段115的轴径大于第二轴段116的轴径,因此可以将导电组件40设置在第一轴段115内,以保证导电组件40有足够的安装空间,定子绕组12套设在第二轴段116的径向外侧,导电组件40在轴向方向上靠近第二轴段116的一端与定子绕组12电连接,通过将导电组件40设置在第一轴段115内,以便于导电组件40与定子绕组12和电机控制器电连接。
进一步结合图1、图5和图9,第一进水段110a和第一出水段120a设于第一轴段115,第二进水段110b和第二出水段120b设于第二轴段116,由此,可以实现第一冷却水道110分别与导电组件40和定子绕组12的热交换,第二冷却水道120分别与导电组件40和定子绕组12的热交换。
结合图2,定子绕组12的引出线121位于定子芯轴11的径向外侧;定子芯轴11的轴壁形成有连通孔106,电机控制器穿设于连通孔106且分别与引出线121和导电组件40电连接。其中,导电件42分别与定子绕组12和电机控制器电连接。装配后,导电组件40的至少部分设置于定子芯轴11(或第一轴段115)内部,一方面能够降低导电组件40受到机械损伤的可能性,提升导电组件40的绝缘性,保证定子组件100的正常工作;另一方面能够减小导电组件40及定子芯轴11占据的空间,提升定子组件100的结构紧凑性,有利于定子组件100及定子组件100的小型化。
结合图2和图8,导电组件40包括基座41和三个导电件42,基座41包裹导电件42,基座41具有沿定子芯轴11轴向延伸的凸筋411,凸筋411止抵第一凸台111,以定位导电组件40。基座41的端部还设有定位配合部412,用于限定导电组件40的周向转动自由度。定位配合部412上设有连接槽401。具体地,电机控制器的一端通过连通孔106插入连接槽401中并与导电件42相连,以实现电机控制器与导电组件40的电连接,同样地,电机控制器的另一端与定子绕组12的引出线121焊接相连,从而实现电机控制器与引出线121的电连接。可选地,基座41为绝缘材料,例如塑料。
更为具体地,结合图3,基座41设于中间孔105,三个导电件42分别一一对应地设于三个边孔104,其中,中间孔105可以用于定位基座41,提高连接的稳定性。其中,三个边孔104可以将第一检测部件31、第一冷却水道110和第二冷却水道120间隔开,这样,三个边孔104的设置位置可以充分利用第一检测部件31、第一冷却水道110和第二冷却水道120之间的间隔,从而利于提高空间布置效果,提高空间利用率。此外,设于第一凸台111和第二凸台112内的第一冷却水道110和第二冷却水道120 也可以用于冷却导电组件40,且结构紧凑,利于提高冷却效果。
在本申请的一些实施例中,结合图2和图7,定子芯轴11的外周壁设有放置槽103,第一检测部件31设于放置槽103内,可以便于将第一检测部件31装配于定子芯轴11上,例如,在安装第一检测部件31时,可以将第一检测部件31插入放置槽103内,可以便于快速装配且提高装配位置的精准性。
结合图4和图6,在本申请的一些实施例中,还包括覆盖件50,覆盖件50覆盖放置槽103的开口,由此,覆盖件50可以将第一检测部件31定位于放置槽103内,可以保护和固定第一检测部件31,提高装配后的稳定性。
在本申请的一些实施例中,定子芯轴11的一部分周壁朝内形变以限定出放置槽103,由此,第一检测部件31可以与定子芯轴11直接相连,第一检测部件31可以直接定位于定子芯轴11上,无需设置单独的装配结构,利于简化结构,利于提高检测精准性。
具体地,结合图2,放置槽103的底壁形成第一安装面117,第一安装面117的相对两侧连接有第二安装面118,其中第一安装面117与第一检测部件31贴合,第二安装面118沿周向限制第一检测部件31的相对两侧,第一安装面117和第二安装面118均为平面,有利于第一检测部件31与放置槽103之间形成稳定的连接。
在本申请的一些实施例中,结合图4和图5,放置槽103的轴向一端敞开以限定出第一检测部件31的安装口,由此,第一检测部件31可以从安装口装配于放置槽103内,定子组件100还包括封堵安装口的封堵件60,可以在装配后封堵安装口,可以将第一检测部件31稳定定位于放置槽103内,还可以保护感应件,避免受外部环境干扰,利于提高第一检测部件31的检测效果。
在本申请的一些实施例中,覆盖件50外套于定子芯轴11的外周壁,由此,覆盖件50可以保护定子芯轴11,还可以增强定子芯轴11的整体结构强度。
在本申请的一些实施例中,结合图6和图7,覆盖件50包括本体部51和盖板52,本体部51和盖板52为分体件,本体部51固定至定子芯轴11且为导磁材料件,即本体部51可以提高定子芯轴11的结构稳定性,且利于引导和集中磁场,利于提高带定子组件100的工作效率和性能。
盖板52固定至本体部51且与第一检测部件31径向正对设置,盖板52为非导磁材料件,具体而言,第一检测部件31的磁条产生的磁场不会在非导磁材料内部通过,使得动子组件上的第二检测部件可以读取第一检测部件31的波形。也就是说,覆盖件50可以构造成一部分为导磁材料件一部分为非导磁材料件的形式,可以在提高结构强度 的同时,保证检测效果。为了提高定子芯轴11的整体硬度及强度,可以在定子芯轴的11的外周壁套设覆盖件50。覆盖件50包括本体部51和盖板52,装配时,可以在定子芯轴11的外周壁套设硬度和强度更高的本体部51,即导磁不锈钢材料,进一步地,可以在本体部51上设置开口,开口位置与第一检测部件31相对,将盖板52拼装于开口处,盖板52可以是无磁钢材料,本体部51与盖板52可以焊接为整体。如图6示出了盖板52覆盖第一检测部件31时的状态,图7示出了盖板52与本体部51分体时的状态。
第一检测部件31可以通过检测磁场变化来检测位置,通过将盖板52设置为非导磁件,可以避免因盖板52磁化而对第一检测部件31产生干扰,以确保第一检测部件31的磁场不受影响,提高检测的准确性。其中,第一检测部件31可以是磁性位置传感器。
结合图4,覆盖件50的外周壁形成有安装凸台53,安装凸台53可以为定子芯轴11提供稳定的支撑点,例如可以为定子芯轴11与其它部件装配时提供一个稳定的支撑点,便于固定与支撑定子芯轴11,从而便于定子芯轴11与其它部件的装配。安装凸台53可以沿定子芯轴11的周向间隔布置多个,以提高支撑的效果,提高结构稳定性。
根据本发明实施例的直线电机,包括前述的定子组件100和动子组件,动子组件上设有第二检测部件,第二检测部件与第一检测部件31配合以检测所述动子组件的位置。具体地,动子组件和定子组件100配合以往复移动,可以驱动负载实现直线运动,而设于定子组件100上的第一检测部件31和设于动子组件上的第二检测部件,可以检测定子组件100和动子组件之间的相对位置。例如,第一检测部件31可以检测动子组件相对于定子组件100的位置,第二检测部件可以检测定子组件100相对于动子组件的位置,第一检测部件31与第二检测部件配合可以提高检测的精准性。
根据本发明实施例的直线电机200,通过设置前述的定子组件100,定子组件100的结构更紧凑,从而可以提高结构电机的结构紧凑性,利于简化电机结构,提升电机性能。
需要说明的是,根据本申请实施例的定子组件100,可以是动子组件相对于定子组件100运动,也可以是定子组件100相对于动子组件运动。
根据本申请实施例的悬架组件1000,包括前述的直线电机200,通过在悬架组件上设置前述的直线电机,且直线电机中第一检测部件31、第一冷却水道110和第二冷却水道120沿定子芯轴11的周向间隔设置,可以提高结构紧凑性,利于简化悬架组件的结构,提高悬架组件运行的稳定性。
本申请实施方式的悬架组件1000包括上述任一实施方式的直线电机200。可以理 解的是,由于本实施方式中的悬架组件包括上述实施方式的直线电机,因此,悬架组件至少包括了与电机相同的有益效果,在此不作赘述。
根据本申请实施例的车辆10000,包括前述的悬架组件1000,通过在车辆上应用前述的悬架组件1000,可以简化车辆结构,提高车辆运行稳定性。
本申请实施方式的车辆包括上述实施方式的悬架组件。其中,车辆包括但不限于纯电动车辆、混动车辆等乘用车辆或者工况不是很恶劣的大型工程车辆等。可以理解的是,由于本实施方式中的车辆包括上述实施方式的悬架组件,因此,车辆至少包括了与悬架组件相同的有益效果,在此不作赘述。
具体地,在某些实施方式中,车辆还包括车身及车轮,车轮设置于车轮并能够相对车身运动。悬架组件还包括悬架,直线电机设置于悬架,且直线电机的一端与车身连接。其中,在直线电机稳定运行的情况下,直线电机能够驱动车轮相对车身运动,由此,检测装置能够根据定子组件100与动子组件(或初级组件与次级组件)之间的位置变化,以确定车身与车轮之间的相对位移。
在本申请的描述中,需要理解的是,术语“长度”、“上”、“下”、“前”、“后”、“底”“内”、“外”、“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的限制。此外,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。在本申请的描述中,除非另有说明,“多个”的含义是两个或两个以上。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;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。对于本领域的普通技术人员而言,可以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,参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者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示例。而且,描述的具体特征、结构、材料或者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。
尽管已经示出和描述了本申请的实施例,本领域的普通技术人员可以理解:在不脱 离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本申请的范围由权利要求及其等同物限定。

Claims (13)

  1. 一种定子组件(100),其中,包括:
    定子绕组(12);
    定子芯轴(11),所述定子芯轴(11)的轴壁内设有沿所述定子芯轴(11)的轴向方向延伸的第一冷却水道(110)和第二冷却水道(120),所述第一冷却水道(110)和所述第二冷却水道(120)至少用于给所述定子绕组(12)冷却;
    第一检测部件(31),所述第一检测部件(31)设于所述定子芯轴(11)的轴壁,所述第一检测部件(31)用于检测动子组件的位置;
    其中,在所述定子芯轴(11)的周向上,所述第一检测部件(31)、所述第一冷却水道(110)和所述第二冷却水道(120)间隔设置。
  2. 根据权利要求1所述的定子组件(100),其中,所述第一冷却水道(110)的第一端设有水道入口(101),所述第二冷却水道(120)的第一端设有水道出口(102),所述水道入口(101)和所述水道出口(102)位于所述定子芯轴(11)的同一侧,所述第一冷却水道(110)的第二端和所述第二冷却水道(120)的第二端连通。
  3. 根据权利要求2所述的定子组件(100),其中,所述定子芯轴(11)的内周壁还设有径向内凸的第一凸台(111)、第二凸台(112)和第三凸台(113),在所述定子芯轴(11)的周向上,所述第一凸台(111)、所述第二凸台(112)和所述第三凸台(113)间隔设置,所述第一冷却水道(110)设于所述第一凸台(111)内,所述第二冷却水道(120)设于所述第二凸台(112)内,所述第一检测部件(31)设于所述第三凸台(113)对应的所述定子芯轴(11)的外周壁上。
  4. 根据权利要求2或3所述的定子组件(100),其中,所述定子组件(100)还包括导电组件(40),所述导电组件(40)包括导电件(42),所述导电件(42)用于电连接所述定子绕组(12)和电机控制器;
    所述第一冷却水道(110)和所述第二冷却水道(120)共同与所述导电组件(40)和所述定子绕组(12)热交换。
  5. 根据权利要求1-4中任一项所述的定子组件(100),其中,所述定子芯轴(11)的外周壁设有放置槽(103),所述第一检测部件(31)设于所述放置槽(103)内。
  6. 根据权利要求5所述的定子组件(100),其中,还包括覆盖件(50),所述覆盖件(50)覆盖所述放置槽(103)的开口。
  7. 根据权利要求6所述的定子组件(100),其中,所述定子芯轴(11)的一部分 周壁构造出所述放置槽(103)。
  8. 根据权利要求7所述的定子组件(100),其中,所述放置槽(103)的轴向一端敞开以限定出所述第一检测部件(31)的安装口,所述定子组件(100)还包括封堵所述安装口的封堵件(60)。
  9. 根据权利要求7所述的定子组件(100),其中,所述覆盖件(50)外套于所述定子芯轴(11)的外周壁。
  10. 根据权利要求9所述的定子组件(100),其中,所述覆盖件(50)包括本体部(51)和盖板(52),所述本体部(51)和所述盖板(52)为分体件,所述本体部(51)固定至所述定子芯轴(11)且为导磁材料件,所述盖板(52)固定至所述本体部(51)且与所述第一检测部件(31)径向正对设置,所述盖板(52)为非导磁材料件。
  11. 一种直线电机(200),其中,包括:
    根据权利要求1-10中任一项所述的定子组件(100),
    动子组件,所述动子组件上设有第二检测部件,所述第二检测部件与所述第一检测部件(31)配合以检测所述动子组件的位置。
  12. 一种悬架组件(1000),其中,包括根据权利要求1-10中任一项所述的定子组件(100)或根据权利要求11所述的直线电机(200)。
  13. 一种车辆(10000),其中,包括根据权利要求12所述的悬架组件(1000)。
PCT/CN2024/128987 2024-03-29 2024-10-31 定子组件、直线电机、悬架组件和车辆 Pending WO2025200440A1 (zh)

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JP7157628B2 (ja) * 2018-10-26 2022-10-20 Kyb株式会社 筒型リニアモータ
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JP2010093911A (ja) * 2008-10-07 2010-04-22 Seiko Epson Corp 電気機械装置及び電気機械装置を用いた装置
CN114430206A (zh) * 2020-10-29 2022-05-03 法雷奥西门子新能源汽车德国有限责任公司 电机分配环
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