WO2023173267A1 - Motor - Google Patents

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Publication number
WO2023173267A1
WO2023173267A1 PCT/CN2022/080806 CN2022080806W WO2023173267A1 WO 2023173267 A1 WO2023173267 A1 WO 2023173267A1 CN 2022080806 W CN2022080806 W CN 2022080806W WO 2023173267 A1 WO2023173267 A1 WO 2023173267A1
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WO
WIPO (PCT)
Prior art keywords
motor cover
housing body
oil
motor
oil injection
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PCT/CN2022/080806
Other languages
French (fr)
Chinese (zh)
Inventor
刘磊
严忆泉
宋志强
Original Assignee
舍弗勒技术股份两合公司
刘磊
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Application filed by 舍弗勒技术股份两合公司, 刘磊 filed Critical 舍弗勒技术股份两合公司
Priority to PCT/CN2022/080806 priority Critical patent/WO2023173267A1/en
Publication of WO2023173267A1 publication Critical patent/WO2023173267A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Definitions

  • This application relates to an electric motor.
  • a possible motor includes a motor housing 100, a stator 200, a rotor 300 and a fuel injection ring 400.
  • the stator 200 includes a stator core 201 and windings 202.
  • the windings 202 are formed from the stator core 201.
  • the axis protrudes towards both ends.
  • the above-mentioned motor includes two fuel injection rings 400, two sealing rings 500 and a number of bolts 600.
  • Many parts need to be manufactured separately, and there are many processing features, resulting in higher production costs, and more parts are connected. Reducing the reliability of the motor.
  • the inner walls of the fuel injection ring 400 and the motor housing 100 need to be sealed, so the requirements for machining accuracy are high, which further increases the production cost.
  • the bolts 600 that fix the fuel injection ring 400 need to occupy the internal space of the motor housing 100, so that the motor housing 100 has some protruding parts to accommodate the bolts 600.
  • the shape of the motor housing 100 is complex, which is not conducive to packaging. And it will increase the cost and weight of the motor housing.
  • the purpose of this application is to overcome or at least alleviate the above-mentioned shortcomings of the prior art and provide a motor with lower production cost.
  • a housing body having an opening on one axial side thereof and defining a motor cavity
  • Figure 1 shows an axial cross-section of a possible electric machine.
  • Figure 2 shows a schematic diagram of the internal structure of a possible motor.
  • Figure 5 shows an axial cross-sectional view of the motor according to one embodiment of the present application.
  • FIG. 6 shows a schematic structural diagram of the housing body of the motor housing according to one embodiment of the present application.
  • the housing body 1 is provided with a housing body fuel injection plate 11.
  • the housing body fuel injection plate 11 is inside the motor cavity 102.
  • the housing body fuel injection plate 11 can be accessed from the inside of the housing body 1.
  • the bottom end extends along the circumferential direction C and the axial direction A of the housing body 1 , and the housing body fuel injection plate 11 can be parallel to the inner peripheral surface of the housing body 1 .
  • the side wall of the housing body 1 is provided with an oil passage 101 for cooling oil to flow.
  • the arrow in Figure 5 indicates the flow direction of the cooling oil.
  • the oil injection plate 11 of the casing body, the inner peripheral surface of the casing body 1 and the stator core 201 may enclose an oil chamber (ie, the oil chamber on the side of the casing body), which is connected to the oil passage 101 .
  • the oil injection plate 11 of the housing body is in contact with the stator core 201, and the oil chamber can be sealed.
  • the casing body oil injection plate 11 is provided with a casing body oil injection groove 12 as an example of a casing body oil injection passage.
  • the casing body oil injection groove 12 may be provided with multiple numbers along the circumferential direction C of the casing body oil injection plate 11 . indivual.
  • the housing body oil injection groove 12 penetrates the housing body oil injection plate 11 in the radial direction R, so that the cooling oil can flow from the radial outside of the housing body oil injection plate 11 to the radial inside of the housing body oil injection plate 11 .
  • the stator 200 in particular, flows to the windings located at the end of the stator 200 in the axial direction A.
  • the housing body oil injection groove 12 may be formed in a strip shape extending along the axial direction A of the housing body oil injection plate 11 .
  • the housing body oil injection groove 12 can extend to the far end of the housing body oil injection plate 11 away from the base (ie, the part where the housing body oil injection plate 11 is connected to the housing body 1 ).
  • a gap is formed at the far end of 11, so that the oil injection groove 12 of the housing body can be formed during the casting process of the housing body 1 without using machining to form the oil injection groove 12 of the housing body, thereby reducing the production cost of the motor housing 100. .
  • the motor cover fuel injection plate 21 is provided with a motor cover fuel injection groove 22 as an example of a motor cover fuel injection channel.
  • a plurality of the motor cover fuel injection grooves 22 may be provided along the circumferential direction C of the motor cover fuel injection plate 21 .
  • the motor cover oil injection groove 22 penetrates the motor cover oil injection plate 21 so that the cooling oil can flow from the radial outside of the motor cover oil injection plate 21 to the stator 200 on the radial inside of the motor cover oil injection plate 21, especially to the stator 200. winding on the end of axis A.
  • the motor cover oil injection groove 22 may be formed in a strip shape extending along the axial direction A.
  • the motor cover fuel injection groove 22 can extend to the far end of the motor cover fuel injection plate 21 away from the base (ie, the part where the motor cover fuel injection plate 21 is connected to the motor cover 2 ), and is formed at the distal end of the motor cover fuel injection plate 21 Notch, so that the motor cover oil injection groove 22 can be formed in the process of casting the motor cover 2 without using machining to form the motor cover oil injection groove 22, thereby reducing the production cost of the motor cover 2 (motor housing 100).
  • this application does not require two separate fuel injection rings, two sealing rings, and several bolts for installing the fuel injection rings, reducing the number of parts in the motor housing and simplifying installation. process, the assembled motor has higher reliability and reduces production costs. There is no need to machine the sealing surface and bolt holes that match the fuel injection ring on the housing body 1, and the processing cost is low. Moreover, the housing body oil injection plate 11 and the housing body oil injection groove 12 on the housing body 1 and the motor cover oil injection plate 21 and the motor cover oil injection groove 22 on the motor cover 2 can be directly formed by casting, without the need for Machining, which allows the motor housing 100 to be produced at a lower cost.
  • At least part of the above-mentioned oil injection grooves 12 of the housing body and the oil injection grooves 22 of the motor cover can be turned into oil injection holes.
  • Shell body 11 Shell body fuel injection plate 12 Shell body fuel injection groove

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The present application provides a motor. The motor comprises: a shell body (1), the shell body (1) being provided with an opening on one axial side of the shell body (1) and defining a motor cavity (102); a stator (200), the stator (200) being arranged inside the motor cavity (102); and a motor cover (2), the motor cover (2) being connected to the opening of the shell body (1). A motor cover oil injection plate (21) is integrally formed on the motor cover (2); the motor cover oil injection plate (21) is inside the motor cavity (102); the motor cover oil injection plate (21) extends in a circumferential direction (C) and an axial direction (A) of the motor cover (2); the motor cover oil injection plate (21) is provided with a motor cover oil injection channel passing through the motor cover oil injection plate (21), so that a motor cover side oil cavity is defined between the motor cover (2) and the shell body (1), and oil input into the motor cover side oil cavity can reach the stator (200) through the motor cover oil injection channel, so as to cool the stator (200).

Description

电机Motor 技术领域Technical field
本申请涉及一种电机。This application relates to an electric motor.
背景技术Background technique
如图1至图4所示，一种可能的电机包括电机壳体100、定子200、转子300和喷油环400，定子200包括定子铁芯201和绕组202，绕组202从定子铁芯201的轴向两端突出。As shown in Figures 1 to 4, a possible motor includes a motor housing 100, a stator 200, a rotor 300 and a fuel injection ring 400. The stator 200 includes a stator core 201 and windings 202. The windings 202 are formed from the stator core 201. The axis protrudes towards both ends.
电机壳体100设置有供冷却油通过的油液通道101，两个喷油环400分别设置于定子200的轴向两侧，喷油环400、定子铁芯201与电机壳体100的内壁围成空腔，空腔与油液通道连通。靠近电机壳体100的开口的喷油环400可以通过螺栓600固定于电机壳体100。电机壳体100和喷油环400之间还设置有密封圈500，从而使空腔可以保持密封。喷油环400设置有油孔。图1中的箭头表示冷却油的流动方向。冷却油可以通过电机壳体100上的油液通道101流入两个空腔，然后冷却油可以通过油孔喷到定子200，特别是绕组202上对其进行冷却。The motor housing 100 is provided with an oil channel 101 for cooling oil to pass through. Two oil injection rings 400 are respectively arranged on both axial sides of the stator 200. The oil injection rings 400, the stator core 201 and the motor housing 100 The inner wall surrounds a cavity, which is connected to the oil channel. The fuel injection ring 400 close to the opening of the motor housing 100 may be fixed to the motor housing 100 through bolts 600 . A sealing ring 500 is also provided between the motor housing 100 and the fuel injection ring 400, so that the cavity can be kept sealed. The fuel injection ring 400 is provided with oil holes. The arrows in Figure 1 indicate the flow direction of the cooling oil. The cooling oil can flow into the two cavities through the oil passage 101 on the motor housing 100, and then the cooling oil can be sprayed through the oil holes to the stator 200, especially the windings 202, to cool them.
上述的电机包括两个喷油环400、两个密封圈500和若干螺栓600，较多的部件需要分别制造，且加工的特征较多，导致生产成本较高，并且较多的部件连接也会导致电机的可靠性降低。喷油环400和电机壳体100的内壁需要密封，因此加工精度的要求较高，进一步提高了生产成本。固定喷油环400的螺栓600需要占用了电机壳体100的内部空间，使电机壳体100有一些凸出的部分用于容纳螺栓600，电机壳体100形状复杂，不利于封装，并且会增加电机壳体的成本和重量。The above-mentioned motor includes two fuel injection rings 400, two sealing rings 500 and a number of bolts 600. Many parts need to be manufactured separately, and there are many processing features, resulting in higher production costs, and more parts are connected. Reducing the reliability of the motor. The inner walls of the fuel injection ring 400 and the motor housing 100 need to be sealed, so the requirements for machining accuracy are high, which further increases the production cost. The bolts 600 that fix the fuel injection ring 400 need to occupy the internal space of the motor housing 100, so that the motor housing 100 has some protruding parts to accommodate the bolts 600. The shape of the motor housing 100 is complex, which is not conducive to packaging. And it will increase the cost and weight of the motor housing.
发明内容Contents of the invention
本申请的目的在于克服或至少减轻上述现有技术存在的不足，提供一种生产成本较低的电机。The purpose of this application is to overcome or at least alleviate the above-mentioned shortcomings of the prior art and provide a motor with lower production cost.
本申请提供一种电机，包括：This application provides a motor, including:
壳体主体，所述壳体主体具有位于其轴向一侧的开口并且限定出电机腔；a housing body having an opening on one axial side thereof and defining a motor cavity;
定子，所述定子设置于所述电机腔的内部，所述定子包括定子铁芯和绕组，所述绕组从所述定子铁芯的轴向上的两端突出；以及A stator, the stator is disposed inside the motor cavity, the stator includes a stator core and windings, the windings protrude from both ends of the stator core in the axial direction; and
电机盖，所述电机盖连接于所述壳体主体的开口处，所述电机盖一体成型地设置有电机盖喷油板，所述电机盖喷油板在所述电机腔的内部，所述电机盖喷油板沿所述电机盖的周向和轴向延伸，所述电机盖喷油板设置有贯穿所述电机盖喷油板的电机盖喷油通道，这样，在所述电机盖和所述壳体主体之间限定出电机盖侧油腔，输入到所述电机盖侧油腔中的油液能够通过所述电机盖喷油通道到达所述定子，从而冷却所述定子。Motor cover, the motor cover is connected to the opening of the housing body, the motor cover is integrally provided with a motor cover fuel injection plate, the motor cover fuel injection plate is inside the motor cavity, the The motor cover fuel injection plate extends along the circumferential and axial directions of the motor cover. The motor cover fuel injection plate is provided with a motor cover fuel injection channel that penetrates the motor cover fuel injection plate. In this way, between the motor cover and the motor cover fuel injection plate, An oil chamber on the side of the motor cover is defined between the main bodies of the housing. The oil input into the oil chamber on the side of the motor cover can reach the stator through the oil injection channel of the motor cover, thereby cooling the stator.
在至少一个实施方式中，所述电机盖喷油通道位于所述绕组的突出部分的径向外侧，从而从所述电机盖喷油通道喷出的油液能够到达所述绕组的所述突出部分，从而冷却所述绕组。In at least one embodiment, the motor cover oil injection channel is located radially outside the protruding part of the winding, so that the oil sprayed from the motor cover oil injection channel can reach the protruding part of the winding. , thereby cooling the winding.
在至少一个实施方式中，所述电机盖喷油通道包括多个电机盖喷油槽，所述电机盖喷油槽延伸至所述电机盖喷油板的远端，在所述电机盖喷油板的远端形成缺口。In at least one embodiment, the motor cover oil injection channel includes a plurality of motor cover oil injection grooves, and the motor cover oil injection grooves extend to the distal end of the motor cover oil injection plate. The distal end of the plate is notched.
在至少一个实施方式中，所述壳体主体一体成型地设置有壳体主体喷油板，所述壳体主体喷油板沿所述壳体主体的周向和轴向延伸，所述壳体主体喷油板设置有贯穿所述壳体主体喷油板的壳体主体喷油通道，这样，在所述壳体主体中限定出壳体主体侧油腔，输入到所述壳体主体侧油腔中的油液能 够通过所述壳体主体喷油通道到达所述定子，从而冷却所述定子。In at least one embodiment, the housing body is integrally provided with a housing body fuel injection plate, the housing body fuel injection plate extends along the circumferential and axial directions of the housing body, and the housing body The main body oil injection plate is provided with a casing main body oil injection channel that penetrates the casing main body oil injection plate. In this way, a casing main body side oil chamber is defined in the casing main body, and the oil on the casing main body side is input to the casing main body side oil chamber. The oil in the cavity can reach the stator through the oil injection channel of the housing body, thereby cooling the stator.
在至少一个实施方式中，所述壳体主体喷油通道位于所述绕组的突出部分的径向外侧从而从所述壳体主体喷油通道喷出的油液能够到达所述绕组的所述突出部分，从而冷却所述绕组。In at least one embodiment, the housing body oil injection channel is located radially outside the protruding portion of the winding so that the oil sprayed from the housing body oil injection channel can reach the protrusion of the winding. part, thereby cooling the winding.
在至少一个实施方式中，所述壳体主体喷油通道包括多个壳体主体喷油槽，所述壳体主体喷油槽延伸至所述壳体主体喷油板的远端，在所述壳体主体喷油板的远端形成缺口。In at least one embodiment, the housing body oil injection channel includes a plurality of housing body oil injection grooves, and the housing body oil injection grooves extend to the distal end of the housing body oil injection plate. A gap is formed at the far end of the fuel injection plate of the housing body.
在至少一个实施方式中，所述壳体主体喷油板通过铸造一体成型地设置于所述壳体主体，所述电机盖喷油板通过铸造一体成型地设置于所述电机盖。In at least one embodiment, the housing body fuel injection plate is integrally formed on the housing body by casting, and the motor cover fuel injection plate is integrally provided on the motor cover by casting.
在至少一个实施方式中，所述壳体主体喷油通道和所述电机盖喷油通道在铸造中形成。In at least one embodiment, the housing body oil injection channel and the motor cover oil injection channel are formed in casting.
在至少一个实施方式中，所述壳体主体设置有油液通道，所述油液通道连通到所述壳体主体侧油腔和所述电机盖侧油腔。In at least one embodiment, the housing body is provided with an oil channel, and the oil channel is connected to the oil chamber on the side of the housing body and the oil chamber on the motor cover side.
在至少一个实施方式中，所述壳体主体喷油板和所述电机盖喷油板分别位于所述定子铁芯的轴向两侧。In at least one embodiment, the housing body oil injection plate and the motor cover oil injection plate are respectively located on both axial sides of the stator core.
通过采用上述技术方案，使电机盖喷油板一体成型地设置于电机盖，从而电机壳体的零件数量较少，加工和组装容易，生产成本较低。By adopting the above technical solution, the motor cover fuel injection plate is integrally provided on the motor cover, so that the motor housing has fewer parts, is easy to process and assemble, and has low production costs.
附图说明Description of the drawings
图1示出了一种可能的电机的轴向剖视图。Figure 1 shows an axial cross-section of a possible electric machine.
图2示出了一种可能的电机的内部结构示意图。Figure 2 shows a schematic diagram of the internal structure of a possible motor.
图3示出了一种可能的电机的一个喷油环的结构示意图。Figure 3 shows a schematic structural diagram of a fuel injection ring of a possible motor.
图4示出了一种可能的电机的另一个喷油环的结构示意图。Figure 4 shows a schematic structural diagram of another possible fuel injection ring of the motor.
图5示出了本申请的一个实施方式的电机的轴向剖视图。Figure 5 shows an axial cross-sectional view of the motor according to one embodiment of the present application.
图6示出了本申请的一个实施方式的电机壳体的壳体主体的结构示意图。FIG. 6 shows a schematic structural diagram of the housing body of the motor housing according to one embodiment of the present application.
图7示出了本申请的一个实施方式的电机壳体的电机盖的结构示意图。FIG. 7 shows a schematic structural diagram of the motor cover of the motor housing according to an embodiment of the present application.
具体实施方式Detailed ways
下面参照附图描述本申请的示例性实施方式。Exemplary embodiments of the present application are described below with reference to the accompanying drawings.
为了更加清楚地阐述本申请的上述目的、特征和优点，在该部分结合附图详细说明本申请的具体实施方式。除了在本部分描述的各个实施方式以外，本申请还能够通过其他不同的方式来实施，在不违背本申请精神的情况下，本领域技术人员可以做相应的改进、变形和替换，因此本申请不受该部分公开的具体实施例的限制。本申请的保护范围应以权利要求为准。In order to more clearly explain the above objects, features and advantages of the present application, specific implementation modes of the present application are described in detail in this section with reference to the accompanying drawings. In addition to the various implementations described in this section, the present application can also be implemented in other different ways. Without violating the spirit of the present application, those skilled in the art can make corresponding improvements, modifications and replacements. Therefore, the present application It is not limited to the specific embodiments disclosed in this section. The scope of protection of this application shall be determined by the claims.
参照图5至图7，本申请提供一种电机，该电机可以用于纯电动汽车或混合动力汽车。电机包括电机壳体100、定子200和转子300，转子300能够转动地连接于电机壳体100，定子200可以设置于转子300的径向外侧。定子200包括定子铁芯201和绕组202，绕组202可以从定子铁芯201的轴向A上的两端突出。本申请中，有时还将绕组202的从定子铁芯201的轴向A上的两端突出的部分称为端部绕组。Referring to Figures 5 to 7, this application provides a motor that can be used in pure electric vehicles or hybrid vehicles. The motor includes a motor housing 100, a stator 200 and a rotor 300. The rotor 300 is rotatably connected to the motor housing 100. The stator 200 may be disposed radially outside the rotor 300. The stator 200 includes a stator core 201 and windings 202. The windings 202 may protrude from both ends of the stator core 201 in the axial direction A. In this application, the portions of the winding 202 that protrude from both ends in the axial direction A of the stator core 201 are sometimes also referred to as end windings.
电机壳体100包括壳体主体1和电机盖2，壳体主体1在其轴向A上的一侧具有开口，并且限定出电机腔102，电机盖2连接于壳体主体1的开口处，壳体主体1和电机盖2连接在一起可以形成用于容纳定子200和转子300的空间。The motor housing 100 includes a housing body 1 and a motor cover 2. The housing body 1 has an opening on one side in the axial direction A and defines a motor cavity 102. The motor cover 2 is connected to the opening of the housing body 1. , the housing body 1 and the motor cover 2 are connected together to form a space for accommodating the stator 200 and the rotor 300 .
参照图5和图6，壳体主体1设置有壳体主体喷油板11，壳体主体喷油板11在电机腔102的内部，壳体主体喷油板11可以从壳体主体1的内部底端沿壳体主体1的周向C和轴向A延伸，壳体主体喷油板11可以与壳体主体1的内周面平行。Referring to Figures 5 and 6, the housing body 1 is provided with a housing body fuel injection plate 11. The housing body fuel injection plate 11 is inside the motor cavity 102. The housing body fuel injection plate 11 can be accessed from the inside of the housing body 1. The bottom end extends along the circumferential direction C and the axial direction A of the housing body 1 , and the housing body fuel injection plate 11 can be parallel to the inner peripheral surface of the housing body 1 .
壳体主体1的侧壁设置有供冷却油流动的油液通道101，图5中的箭头表示冷却油的流动方向。壳体主体喷油板11、壳体主体1的内周面及定子铁芯201可以围成油腔(即，壳体主体侧油腔)，该油腔与油液通道101连通。在安装定子200的状态下，壳体主体喷油板11和定子铁芯201接触，该油腔可以被密封。The side wall of the housing body 1 is provided with an oil passage 101 for cooling oil to flow. The arrow in Figure 5 indicates the flow direction of the cooling oil. The oil injection plate 11 of the casing body, the inner peripheral surface of the casing body 1 and the stator core 201 may enclose an oil chamber (ie, the oil chamber on the side of the casing body), which is connected to the oil passage 101 . When the stator 200 is installed, the oil injection plate 11 of the housing body is in contact with the stator core 201, and the oil chamber can be sealed.
壳体主体喷油板11与壳体主体1可以是一体成型的，例如可以通过铸造使壳体主体1和壳体主体喷油板11一体成型，从而电机壳体100的零件较少，成本较低，简化组装过程，组装而成的电机可靠性较高。并且由于壳体主体喷油板11与壳体主体1一体成型，壳体主体喷油板11和壳体主体1之间无需使用密封圈保证密封性。The housing body fuel injection plate 11 and the housing body 1 can be integrally formed. For example, the housing body 1 and the housing body fuel injection plate 11 can be integrally formed by casting, so that the motor housing 100 requires fewer parts and reduces the cost. It is lower, simplifies the assembly process, and the assembled motor has higher reliability. Moreover, since the housing body fuel injection plate 11 and the housing body 1 are integrally formed, there is no need to use a sealing ring between the housing body fuel injection plate 11 and the housing body 1 to ensure sealing.
壳体主体喷油板11设置有作为壳体主体喷油通道的示例的壳体主体喷油槽12，壳体主体喷油槽12可以沿壳体主体喷油板11的周向C设置有多个。壳体主体喷油槽12在径向R上贯穿壳体主体喷油板11，使冷却油可以从壳体主体喷油板11的径向外侧流向壳体主体喷油板11的径向内侧的定子200，特别是流向位于定子200的轴向A上的端部的绕组。The casing body oil injection plate 11 is provided with a casing body oil injection groove 12 as an example of a casing body oil injection passage. The casing body oil injection groove 12 may be provided with multiple numbers along the circumferential direction C of the casing body oil injection plate 11 . indivual. The housing body oil injection groove 12 penetrates the housing body oil injection plate 11 in the radial direction R, so that the cooling oil can flow from the radial outside of the housing body oil injection plate 11 to the radial inside of the housing body oil injection plate 11 . The stator 200 , in particular, flows to the windings located at the end of the stator 200 in the axial direction A.
壳体主体喷油槽12可以形成为沿壳体主体喷油板11的轴向A延伸的条形。壳体主体喷油槽12可以延伸至壳体主体喷油板11的远离基部(即，壳体主体喷油板11与壳体主体1连接的部分)的远端，在壳体主体喷油板11的远端形成缺口，这样壳体主体喷油槽12可以在铸造壳体主体1的过程中形成，而无需使用机加工形成壳体主体喷油槽12，降低电机壳体100的生产成本。The housing body oil injection groove 12 may be formed in a strip shape extending along the axial direction A of the housing body oil injection plate 11 . The housing body oil injection groove 12 can extend to the far end of the housing body oil injection plate 11 away from the base (ie, the part where the housing body oil injection plate 11 is connected to the housing body 1 ). A gap is formed at the far end of 11, so that the oil injection groove 12 of the housing body can be formed during the casting process of the housing body 1 without using machining to form the oil injection groove 12 of the housing body, thereby reducing the production cost of the motor housing 100. .
参照图5和图7，电机盖2设置有电机盖喷油板21，电机盖喷油板21在电机腔102的内部，电机盖喷油板21可以从电机盖2沿电机盖2的周向C和轴向A向壳体主体1的内部延伸。电机盖喷油板21可以与壳体主体喷油板11平行，电机盖喷油板21和壳体主体喷油板11分别位于定子铁芯201的轴向A上的两 端的绕组的径向外侧。Referring to Figures 5 and 7, the motor cover 2 is provided with a motor cover fuel injection plate 21. The motor cover fuel injection plate 21 is inside the motor cavity 102. The motor cover fuel injection plate 21 can be moved from the motor cover 2 along the circumferential direction of the motor cover 2. C and axial direction A extend toward the inside of the housing body 1 . The motor cover fuel injection plate 21 can be parallel to the housing body fuel injection plate 11. The motor cover fuel injection plate 21 and the housing body fuel injection plate 11 are respectively located radially outside the windings at both ends of the stator core 201 in the axial direction A. .
考虑到电机的实际整体造型，电机盖2的内周面和电机盖喷油板21都可以不形成完整的圆周。Considering the actual overall shape of the motor, the inner circumferential surface of the motor cover 2 and the motor cover fuel injection plate 21 do not need to form a complete circle.
电机盖喷油板21、壳体主体1的内周面及定子铁芯201可以围成油腔(即，电机盖侧油腔)，该油腔与油液通道101连通。在安装定子200的状态下，定子铁芯201和电机盖喷油板21接触，该油腔可以被密封。开放形状(非闭合圆周)的电机盖喷油板21的两端部可以向壳体主体1的内周面延伸，从而围成油腔。The oil injection plate 21 of the motor cover, the inner peripheral surface of the housing body 1 and the stator core 201 can form an oil chamber (ie, the oil chamber on the side of the motor cover), and the oil chamber is connected with the oil channel 101 . When the stator 200 is installed, the stator core 201 is in contact with the motor cover oil injection plate 21, and the oil chamber can be sealed. The two ends of the open-shaped (non-closed circumference) motor cover fuel injection plate 21 can extend toward the inner peripheral surface of the housing body 1 to enclose an oil chamber.
电机盖喷油板21与电机盖2可以是一体成型的，例如可以通过铸造使电机盖2和电机盖喷油板21一体成型，从而电机盖2(电机壳体100)的零件较少，成本较低，简化组装过程，组装而成的电机可靠性较高。The motor cover fuel injection plate 21 and the motor cover 2 can be integrally formed. For example, the motor cover 2 and the motor cover fuel injection plate 21 can be integrally formed by casting, so that the motor cover 2 (motor housing 100) has fewer parts. The cost is lower, the assembly process is simplified, and the assembled motor has higher reliability.
电机盖喷油板21设置有作为电机盖喷油通道的示例的电机盖喷油槽22，电机盖喷油槽22可以沿电机盖喷油板21的周向C设置有多个。电机盖喷油槽22贯穿电机盖喷油板21，使冷却油可以从电机盖喷油板21的径向外侧流向电机盖喷油板21的径向内侧的定子200，特别是流向位于定子200的轴向A上的端部的绕组。The motor cover fuel injection plate 21 is provided with a motor cover fuel injection groove 22 as an example of a motor cover fuel injection channel. A plurality of the motor cover fuel injection grooves 22 may be provided along the circumferential direction C of the motor cover fuel injection plate 21 . The motor cover oil injection groove 22 penetrates the motor cover oil injection plate 21 so that the cooling oil can flow from the radial outside of the motor cover oil injection plate 21 to the stator 200 on the radial inside of the motor cover oil injection plate 21, especially to the stator 200. winding on the end of axis A.
电机盖喷油槽22可以形成为沿轴向A延伸的条形。电机盖喷油槽22可以延伸至电机盖喷油板21的远离基部(即，电机盖喷油板21与电机盖2连接的部分)的远端，在电机盖喷油板21的远端形成缺口，这样电机盖喷油槽22可以在铸造电机盖2的过程中形成，而无需使用机加工形成电机盖喷油槽22，降低电机盖2(电机壳体100)的生产成本。The motor cover oil injection groove 22 may be formed in a strip shape extending along the axial direction A. The motor cover fuel injection groove 22 can extend to the far end of the motor cover fuel injection plate 21 away from the base (ie, the part where the motor cover fuel injection plate 21 is connected to the motor cover 2 ), and is formed at the distal end of the motor cover fuel injection plate 21 Notch, so that the motor cover oil injection groove 22 can be formed in the process of casting the motor cover 2 without using machining to form the motor cover oil injection groove 22, thereby reducing the production cost of the motor cover 2 (motor housing 100).
在本实施方式中，壳体主体喷油板11和电机盖喷油板21的直径可以相同，从而壳体主体喷油板11和端部绕组的距离与电机盖喷油板21和端部绕组的距离可以相同。In this embodiment, the diameters of the oil injection plate 11 of the housing body and the oil injection plate 21 of the motor cover can be the same, so that the distance between the oil injection plate 11 of the housing body and the end windings is the same as that of the oil injection plate 21 of the motor cover and the end windings. The distance can be the same.
本申请相比于背景技术中描述的电机，不需要单独的两个喷油环、两个密封圈以及用于安装喷油环的若干螺栓，减少了电机壳体的零件数量，简化了安装过程，组装而成的电机可靠性较高，并且降低了生产成本。不需要在壳体主体1上机加工与喷油环配合的密封面及螺栓孔，加工成本低。并且，壳体主体1上的壳体主体喷油板11和壳体主体喷油槽12以及电机盖2上的电机盖喷油板21和电机盖喷油槽22都可以通过铸造直接形成，无需机加工，这使电机壳体100的生产成较低。Compared with the motor described in the background art, this application does not require two separate fuel injection rings, two sealing rings, and several bolts for installing the fuel injection rings, reducing the number of parts in the motor housing and simplifying installation. process, the assembled motor has higher reliability and reduces production costs. There is no need to machine the sealing surface and bolt holes that match the fuel injection ring on the housing body 1, and the processing cost is low. Moreover, the housing body oil injection plate 11 and the housing body oil injection groove 12 on the housing body 1 and the motor cover oil injection plate 21 and the motor cover oil injection groove 22 on the motor cover 2 can be directly formed by casting, without the need for Machining, which allows the motor housing 100 to be produced at a lower cost.
可以理解，本申请不限于上述实施方式。It can be understood that the present application is not limited to the above-described embodiments.
例如，可以将上述壳体主体喷油槽12和电机盖喷油槽22中的至少一部分喷油槽变成喷油孔。For example, at least part of the above-mentioned oil injection grooves 12 of the housing body and the oil injection grooves 22 of the motor cover can be turned into oil injection holes.
上述喷油槽或喷油孔也不限于通过铸造的方式形成，也可以通过机加工形成。The above-mentioned oil injection groove or oil injection hole is not limited to being formed by casting, and may also be formed by machining.
虽使用上述实施方式对本申请进行了详细说明，但对于本领域技术人员来说，本申请显然并不限于在本说明书中说明的实施方式。本申请能够在不脱离由权利要求书所确定的本申请的主旨以及范围的前提下加以修改并作为变更实施方式加以实施。因此，本说明书中的记载以示例说明为目的，对于本申请并不具有任何限制性的含义。Although the present application has been described in detail using the above embodiments, it is obvious to those skilled in the art that the present application is not limited to the embodiments described in this specification. This application can be modified and implemented as a modified embodiment without departing from the gist and scope of the application defined by the claims. Therefore, the description in this specification is for the purpose of illustration and does not have any restrictive meaning on the present application.
附图标记列表List of reference signs
100电机壳体 101油液通道 102电机腔 200定子 201定子铁芯 202绕组 300转子 400喷油环 500密封圈 600螺栓100 motor housing 101 oil channel 102 motor cavity 200 stator 201 stator core 202 winding 300 rotor 400 injection ring 500 sealing ring 600 bolts
1壳体主体 11壳体主体喷油板 12壳体主体喷油槽1 Shell body 11 Shell body fuel injection plate 12 Shell body fuel injection groove
2电机盖 21电机盖喷油板 22电机盖喷油槽2 Motor cover 21 Motor cover fuel injection plate 22 Motor cover fuel injection slot
A轴向 R径向 C周向A Axial R Radial C Circumferential

Claims (10)

  1. 一种电机，其特征在于，包括：A motor, characterized in that it includes:
    壳体主体(1)，所述壳体主体(1)具有位于其轴向一侧的开口并且限定出电机腔(102)；A housing body (1) having an opening on one axial side thereof and defining a motor cavity (102);
    定子(200)，所述定子(200)设置于所述电机腔(102)的内部，所述定子(200)包括定子铁芯(201)和绕组(202)，所述绕组(202)从所述定子铁芯(201)的轴向(A)上的两端突出；以及Stator (200), the stator (200) is arranged inside the motor cavity (102), the stator (200) includes a stator core (201) and a winding (202), and the winding (202) is formed from the stator core (201). Two ends of the stator core (201) protrude in the axial direction (A); and
    电机盖(2)，所述电机盖(2)连接于所述壳体主体(1)的开口处，所述电机盖(2)一体成型地设置有电机盖喷油板(21)，所述电机盖喷油板(21)在所述电机腔(102)的内部，所述电机盖喷油板(21)沿所述电机盖(2)的周向(C)和轴向(A)延伸，所述电机盖喷油板(21)设置有贯穿所述电机盖喷油板(21)的电机盖喷油通道，这样，在所述电机盖(2)和所述壳体主体(1)之间限定出电机盖侧油腔，输入到所述电机盖侧油腔中的油液能够通过所述电机盖喷油通道到达所述定子(200)，从而冷却所述定子(200)。Motor cover (2). The motor cover (2) is connected to the opening of the housing body (1). The motor cover (2) is integrally provided with a motor cover fuel injection plate (21). The motor cover fuel injection plate (21) is inside the motor cavity (102), and the motor cover fuel injection plate (21) extends along the circumferential direction (C) and axial direction (A) of the motor cover (2). , the motor cover fuel injection plate (21) is provided with a motor cover fuel injection channel that penetrates the motor cover fuel injection plate (21), so that between the motor cover (2) and the housing body (1) An oil chamber on the side of the motor cover is defined between them, and the oil input into the oil chamber on the side of the motor cover can reach the stator (200) through the oil injection channel of the motor cover, thereby cooling the stator (200).
  2. 根据权利要求1所述的电机，其特征在于，所述电机盖喷油通道位于所述绕组(202)的突出部分的径向外侧，从而从所述电机盖喷油通道喷出的油液能够到达所述绕组(202)的所述突出部分，从而冷却所述绕组(202)。The motor according to claim 1, characterized in that the motor cover oil injection channel is located radially outside the protruding part of the winding (202), so that the oil sprayed from the motor cover oil injection channel can The protruding portion of the winding (202) is reached, thereby cooling the winding (202).
  3. 根据权利要求1所述的电机，其特征在于，所述电机盖喷油通道包括多个电机盖喷油槽(22)，所述电机盖喷油槽(22)延伸至所述电机盖喷油板(21)的远端，在所述电机盖喷油板(21)的远端形成缺口。The motor according to claim 1, characterized in that the motor cover oil injection channel includes a plurality of motor cover oil injection grooves (22), and the motor cover oil injection grooves (22) extend to the motor cover oil injection groove. The distal end of the plate (21) forms a gap at the distal end of the motor cover fuel injection plate (21).
  4. 根据权利要求1所述的电机，其特征在于，所述壳体主体(1)一体成型地设置有壳体主体喷油板(11)，所述壳体主体喷油板(11)沿所述壳体主体(1)的周向(C)和轴向(A)延伸，所述壳体主体喷油板(11)设置有贯穿所述壳体主体喷油板(11)的壳体主体喷油通道，这样，在所述壳 体主体(1)中限定出壳体主体侧油腔，输入到所述壳体主体侧油腔中的油液能够通过所述壳体主体喷油通道到达所述定子(200)，从而冷却所述定子(200)。The motor according to claim 1, characterized in that the housing body (1) is integrally provided with a housing body oil injection plate (11), and the housing body oil injection plate (11) is formed along the The housing body (1) extends in the circumferential direction (C) and the axial direction (A), and the housing body fuel injection plate (11) is provided with a housing body fuel injection plate (11) that penetrates the housing body fuel injection plate (11). oil channel, in this way, a housing body side oil chamber is defined in the housing body (1), and the oil input into the housing body side oil chamber can reach all locations through the housing body oil injection channel. The stator (200) is cooled thereby cooling the stator (200).
  5. 根据权利要求4所述的电机，其特征在于，所述壳体主体喷油通道位于所述绕组(202)的突出部分的径向外侧从而从所述壳体主体喷油通道喷出的油液能够到达所述绕组(202)的所述突出部分，从而冷却所述绕组(202)。The motor according to claim 4, characterized in that the housing body oil injection channel is located radially outside the protruding part of the winding (202) so that the oil sprayed from the housing body oil injection channel The protruding portion of the winding (202) can be reached, thereby cooling the winding (202).
  6. 根据权利要求4所述的电机，其特征在于，所述壳体主体喷油通道包括多个壳体主体喷油槽(12)，所述壳体主体喷油槽(12)延伸至所述壳体主体喷油板(11)的远端，在所述壳体主体喷油板(11)的远端形成缺口。The motor according to claim 4, characterized in that the housing body oil injection channel includes a plurality of housing body oil injection grooves (12), and the housing body oil injection grooves (12) extend to the housing. A gap is formed at the far end of the oil injection plate (11) of the housing body.
  7. 根据权利要求4所述的电机，其特征在于，所述壳体主体喷油板(11)通过铸造一体成型地设置于所述壳体主体(1)，所述电机盖喷油板(21)通过铸造一体成型地设置于所述电机盖(2)。The motor according to claim 4, characterized in that the housing body fuel injection plate (11) is integrally formed on the housing body (1) by casting, and the motor cover fuel injection plate (21) It is integrally formed on the motor cover (2) by casting.
  8. 根据权利要求7所述的电机，其特征在于，所述壳体主体喷油通道和所述电机盖喷油通道在铸造中形成。The motor according to claim 7, wherein the housing body oil injection channel and the motor cover oil injection channel are formed in casting.
  9. 根据权利要求4所述的电机，其特征在于，所述壳体主体(1)设置有油液通道(101)，所述油液通道(101)连通到所述壳体主体侧油腔和所述电机盖侧油腔。The motor according to claim 4, characterized in that the housing body (1) is provided with an oil passage (101), and the oil passage (101) is connected to the oil chamber on the side of the housing body and the oil chamber. The oil chamber on the side of the motor cover.
  10. 根据权利要求4所述的电机，其特征在于，所述壳体主体喷油板(11)和所述电机盖喷油板(21)分别位于所述定子铁芯(201)的轴向两侧。The motor according to claim 4, characterized in that the housing body oil injection plate (11) and the motor cover oil injection plate (21) are respectively located on both axial sides of the stator core (201). .
PCT/CN2022/080806 2022-03-15 2022-03-15 Motor WO2023173267A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207939351U (en) * 2018-03-30 2018-10-02 北京理工大学 A kind of liquid cooling driving motor
CN109831062A (en) * 2017-11-23 2019-05-31 上海汽车集团股份有限公司 The speed changer of integrated driving motor module and hybrid power assembly with it
WO2021004102A1 (en) * 2019-07-08 2021-01-14 华为技术有限公司 Motor, power assembly and vehicle
CN212909262U (en) * 2020-08-03 2021-04-06 安徽威灵汽车部件有限公司 Motor and vehicle
CN114069916A (en) * 2020-08-07 2022-02-18 上海汽车电驱动有限公司 Combined oil-cooled motor system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109831062A (en) * 2017-11-23 2019-05-31 上海汽车集团股份有限公司 The speed changer of integrated driving motor module and hybrid power assembly with it
CN207939351U (en) * 2018-03-30 2018-10-02 北京理工大学 A kind of liquid cooling driving motor
WO2021004102A1 (en) * 2019-07-08 2021-01-14 华为技术有限公司 Motor, power assembly and vehicle
CN212909262U (en) * 2020-08-03 2021-04-06 安徽威灵汽车部件有限公司 Motor and vehicle
CN114069916A (en) * 2020-08-07 2022-02-18 上海汽车电驱动有限公司 Combined oil-cooled motor system

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