WO2020048167A1 - 一种新能源驱动电机 - Google Patents

一种新能源驱动电机 Download PDF

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Publication number
WO2020048167A1
WO2020048167A1 PCT/CN2019/089467 CN2019089467W WO2020048167A1 WO 2020048167 A1 WO2020048167 A1 WO 2020048167A1 CN 2019089467 W CN2019089467 W CN 2019089467W WO 2020048167 A1 WO2020048167 A1 WO 2020048167A1
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WIPO (PCT)
Prior art keywords
oil seal
new energy
mounting hole
packing
drive motor
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PCT/CN2019/089467
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English (en)
French (fr)
Inventor
徐榕锋
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南京高崎电机有限公司
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Application filed by 南京高崎电机有限公司 filed Critical 南京高崎电机有限公司
Priority to DE212019000354.0U priority Critical patent/DE212019000354U1/de
Publication of WO2020048167A1 publication Critical patent/WO2020048167A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts

Definitions

  • the utility model belongs to the technical field of motors, and particularly relates to a new energy driving motor.
  • New energy drive motors are mainly used in new energy vehicles. Therefore, they are often referred to as new energy vehicle drive motors. Because the linear speed of the shaft extension of the new energy vehicle drive motor is usually greater than 10m / s, the rotary seal is prone to distortion and excessive wear. The seal fails. At present, the rotating shaft of the driving motor of new energy vehicles usually has a single skeleton oil seal. If the electric vehicle is accidentally or forced to run under severe weather conditions, it will easily cause damage to the motor. In addition, oil seals are generally made of rubber, which will cause wear and tear during long-term use, which will cause poor sealing.
  • the existing patent discloses a rotary sealing structure of a driving motor for a new energy vehicle (announcement number CN207504690U), which discloses a rotary sealing structure for a driving motor for a new energy vehicle.
  • a first mounting hole is sleeved on the rotating shaft, and the first mounting hole is circular.
  • a first oil seal is provided in the first mounting hole, and a plurality of cards are connected to a side wall of the sealing plate near the body.
  • Block, and the block is arranged at the edge of the sealing plate, a second mounting hole is provided on the side wall of the body near the sealing plate, and the second mounting hole is circular, and a second oil seal is provided in the second mounting hole.
  • the body is provided with card slots corresponding to the number of card blocks, and the card blocks are located in the card slots.
  • the utility model not only effectively improves the sealing performance of the rotating mechanism, but also prolongs the service life of the rotating mechanism and solves the problem of the single skeleton oil seal sealing. However, the first oil seal and the second oil seal will cause wear during long-term use, and the problem of poor sealing performance has not been solved.
  • the purpose of the utility model is to provide a new energy driving motor, which is provided with a self-sealing structure. Even if it is used for a long time, the first oil seal and the second oil seal can always be in close contact with the rotating shaft, thereby increasing the sealing performance.
  • a new energy driving motor includes a driving motor body.
  • the driving motor body includes a body and a rotating shaft.
  • the rotating shaft is inserted into the body, and a sealing plate is sleeved on the rotating shaft.
  • An O-shaped washer is provided on a side wall near one end of the body, and a circular first mounting hole is provided on a side wall remote from the body.
  • a first oil seal is provided in the first mounting hole.
  • a circular mounting second mounting hole is provided on a side wall of one end of the body near the sealing plate.
  • a second oil seal is provided in the second mounting hole, and both the first oil seal and the second oil seal are provided.
  • a circular inner cavity is provided with a self-sealing structure in the inner cavity.
  • the self-sealing structure can make the first oil seal and the second oil seal closely adhere to the rotating shaft at all times.
  • the first oil seal and the second oil seal are sealing elements, which can be made of rubber, but will cause wear during use, making the sealing effect poor, and when worn, there will be There is a gap.
  • the self-sealing structure will push the first oil seal or the second oil seal into close contact with the rotating shaft to ensure a good sealing effect.
  • the self-sealing structure includes a spring, a packing pressure ring and a packing group, and a plurality of the springs, a circular ring-shaped packing pressure ring and a circular ring-shaped A stuffing cavity, the stuffing cavity is filled with the stuffing group, all the springs are distributed in the circumferential direction of the inner cavity, the spring is always in a compressed state and connected to the stuffing pressure ring, Both sides are in close contact with the packing pressure ring and the inner wall of the inner cavity near the rotation axis side, respectively. When worn, there will be a gap between the shaft and the shaft. Because the spring is in a compressed state, it will automatically stretch to push the packing pressure ring against the packing group, and the packing group is pressed against the first packing group. An oil seal or the second oil seal makes it possible to have a better sealing effect.
  • the filler group is composed of asbestos fibers or plant fibers.
  • the body includes a housing, and the housing is provided with a plurality of heat sinks. Conducive to heat dissipation.
  • two sides of the housing are provided with a plurality of L-shaped mounting plates, and the mounting plates are provided with a plurality of threaded holes.
  • the mounting plate is clamped on a car frame.
  • a buffer pad is provided inside the mounting plate.
  • the car frame is provided with the buffer pads along with the vibration, which can alleviate the vibration intensity of the new energy drive motor.
  • the beneficial effect of the utility model is that a self-sealing structure is provided, and even if it is used for a long time, the first oil seal and the second oil seal can always be in close contact with the rotating shaft, and the sealing performance is increased.
  • Figure 1 is a perspective view of the utility model mounted on a car frame
  • FIG. 2 is an enlarged view at A in FIG. 1;
  • FIG. 3 is a front view of a partial cross-sectional view of the present invention.
  • FIG. 4 is a schematic diagram of a self-sealing structure.
  • the marks in the figure are: 1. Body; 2. Rotating shaft; 3. Sealing plate; 4. O-shaped washer; 5. First mounting hole; 6. First oil seal; 7. Second mounting hole; 8. Second Oil seal; 9, inner cavity; 10, spring; 11, packing pressure ring; 12, packing group; 13, shell; 131, heat sink; 14, mounting plate; 141, threaded hole; 15, cushion pad; 16, car frame.
  • a new energy drive motor includes a drive motor body.
  • the drive motor body includes a body 1 and a rotating shaft 2.
  • the rotating shaft 2 is inserted in the body 1, and the rotation A sealing plate 3 is sleeved on the shaft 2.
  • An O-shaped gasket 4 is provided on a side wall of the sealing plate 3 near the body 1, and a circular ring-shaped first side is provided on a side wall away from the body 1.
  • a mounting hole 5 is provided with a first oil seal 6 therein, and a circular ring-shaped second mounting hole 7 is provided on a side wall of one end of the body 1 near the sealing plate 3, and the first A second oil seal 8 is provided in the two mounting holes 7, and the first oil seal 6 and the second oil seal 8 are each provided with a circular inner cavity 9.
  • the inner cavity 9 is provided with a self-sealing structure.
  • the self-sealing structure can make the first oil seal 6 and the second oil seal 8 closely contact the rotating shaft 2 at all times.
  • the first oil seal 6 and the second oil seal 8 are sealing elements, which can be made of rubber, but will cause wear during use, resulting in poor sealing effect. There will be a gap between the two. At this time, the self-sealing structure will push the first oil seal 6 or the second oil seal 8 into close contact with the rotating shaft 2 to ensure a good sealing effect.
  • the self-sealing structure includes a spring 10, a packing pressure ring 11 and a packing group 12, and a plurality of the springs 10, a circular ring-shaped packing pressure ring 11 and a
  • the ring-shaped packing cavity is filled with the packing group 12, and all the springs 10 are distributed along the inner cavity 9 in a circumferential direction, and the spring 10 is always in a compressed state and is
  • the packing pressure ring 11 is connected, and two sides of the packing group 12 are in close contact with the inner wall of the packing pressure ring 11 and the inner cavity 9 near the rotating shaft 2 respectively. When worn, there will be a gap with the rotating shaft 2.
  • the filler group 12 may be composed of asbestos fibers or plant fibers.
  • the body 1 includes a housing 13, and a plurality of heat sinks 131 are provided on the housing 13. Conducive to heat dissipation.
  • two sides of the casing 13 are provided with a plurality of L-shaped mounting plates 14, and the mounting plates 14 are provided with a plurality of threaded holes 141.
  • the mounting plate 14 is clamped on the vehicle frame 16.
  • a cushion pad 15 is provided inside the mounting plate 14.
  • the car frame 16 When the car is running, the car frame 16 will be provided with the cushion pad 15 as it vibrates, which can alleviate the vibration intensity of the new energy drive motor.
  • FIG. 4 shows the self-sealing structure in the inner cavity in the first oil seal 6 as an example.
  • the self-sealing structure in the inner cavity in the second oil seal 8 is the same as the self-sealing structure in the inner cavity of the first oil seal.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sealing Devices (AREA)
  • Motor Or Generator Frames (AREA)
  • Gasket Seals (AREA)

Abstract

本实用新型提供一种新能源驱动电机，具体涉及电机技术领域，包括驱动电机本体，驱动电机本体包括机体和转动轴，转动轴插设在机体内，转动轴上套接有密封板，密封板的靠近机体的一端侧壁上设有O形垫圈，远离机体的一端侧壁上设有圆环形的第一安装孔，第一安装孔内设有第一油封，机体靠近密封板的一端侧壁上设有圆环形的第二安装孔，第二安装孔内设有第二油封，第一油封和第二油封均设有圆环形的内腔，内腔内设有自密封结构，自密封结构能够使得第一油封和第二油封始终与转动轴紧密相贴。本实用新型设有自密封结构，即使长时间的使用依然可以使得第一油封和第二油封始终与转动轴紧密接触，增加密封性。

Description

一种新能源驱动电机 技术领域
本实用新型属于电机技术领域，具体涉及一种新能源驱动电机。
背景技术
新能源驱动电机主要用在新能源汽车上，因此，通常被称为新能源汽车驱动电机，由于新能源汽车驱动电机轴伸处线速度通常大于10m/s，旋转密封易发生扭曲和过度磨损使密封失效，目前新能源汽车驱动电机旋转轴通常单一骨架油封密封，若电动汽车不慎或在恶劣天气条件下被迫淌水行驶容易造成电机损坏。另外，一般油封都是由橡胶制成，在长期的使用过程中会造成磨损，而使得密封性变差。
现有专利一种新能源汽车驱动电机的旋转密封结构(公告号CN207504690U)公开了一种新能源汽车驱动电机的旋转密封结构，包括驱动电机，驱动电机由机体和转动轴组成，转动轴插设在机体内，转动轴上套接有第一安装孔，且第一安装孔为圆环形，第一安装孔内设有第一油封，密封板靠近机体的一端侧壁上连接有多块卡块，且卡块设置于密封板的边缘处，机体靠近密封板的一端侧壁上设有第二安装孔，且第二安装孔为圆环形，第二安装孔内设有第二油封，机体上设有与卡块数量相对应的卡槽，且卡块位于卡槽内。该实用新型不仅有效提高旋转机构的密封性，而且还能延长旋转机构的使用寿命，解决单一骨架油封密封问题。但是第一油封和第二油封在长期的使用过程中会造成磨损，而使得密封性变差的问题并没有解决。
因此急需一种能够解决现有问题的新能源驱动电机。
实用新型内容
本实用新型的目的是提供新能源驱动电机，设有自密封结构，即使长时间的使用依然可以使得第一油封和第二油封始终与转动轴紧密接触，增加密封性。
本实用新型提供了如下的技术方案：
一种新能源驱动电机，包括驱动电机本体，所述驱动电机本体包括机体和转动轴，所述转动轴插设在所述机体内，所述转动轴上套接有密封板，所述密封板的靠近所述机体的一端侧壁上设有O形垫圈，远离所述机体的一端侧壁上设有圆环形的第一安装孔，所述第一安装孔内设有第一油封，所述机体靠近所述密封板的一端侧壁上设有圆环形的第二安装孔，所述第二安装孔内设有第二油封，所述第一油封和所述第二油封均设有圆环形的内腔，所述内腔内设有自密封结构，所述自密封结构能够使得所述第一油封和所述第二油封始终与所述转动轴紧密相贴。一般所述第一油封和第二油封都是密封元件，可以由橡胶制成，但是在使用过程中会造成磨损，而使得密封效果不佳，而当磨损后，与所述转动轴之间会存在间隙，此时所述自密封结构会推动所述第一油封或者第二油封与所述转动轴紧密相贴，确保良好的密封效果。
优选的，所述自密封结构包括弹簧、填料压环和填料组，所述内腔内设有多个所述弹簧、一个圆环形的所述填料压环和一个呈圆环形的所述填料腔，所述填料腔内填充有所 述填料组，所有的所述弹簧沿所述内腔周向分布，所述弹簧始终处于压缩状态且与所述填料压环相连，所述填料组的两侧分别与所述填料压环和所述内腔的靠近所述转动轴侧的内壁紧密相贴。当磨损后，与所述转动轴之间会存在间隙，所述弹簧由于处于压缩状态，会自动伸长推动所述填料压环压向所述填料组，而所述填料组压向所述第一油封或者所述第二油封从而使其能够具有更好的密封效果。
优选的，所述填料组由石棉纤维或植物纤维组成。
优选的，所述机体包括外壳，所述外壳上设有多个散热片。有利于散热。
优选的，所述外壳的两侧设有若干呈L形的安装板，所述安装板上设有若干螺纹孔。将所述安装板卡在汽车车架上。
优选的，所述安装板内侧设有缓冲垫。当汽车在行驶过程中，该汽车车架会随着震动，而设有所述缓冲垫，能够缓解该新能源驱动电机的震动强度。
本实用新型的有益效果是：设有自密封结构，即使长时间的使用依然可以使得第一油封和第二油封始终与转动轴紧密接触，增加密封性。
附图说明
附图用来提供对本实用新型的进一步理解，并且构成说明书的一部分，与本实用新型的实施例一起用于解释本实用新型，并不构成对本实用新型的限制。在附图中：
图1是本实用新型安装在汽车架上的立体图；
图2是图1中的A处放大图；
图3是本实用新型的部分剖面图的主视图；
图4是自密封结构的示意图。
其中图中标记为：1、机体；2、转动轴；3、密封板；4、O形垫圈；5、第一安装孔；6、第一油封；7、第二安装孔；8、第二油封；9、内腔；10、弹簧；11、填料压环；12、填料组；13、外壳；131、散热片；14、安装板；141、螺纹孔；15、缓冲垫；16、汽车车架。
具体实施方式
如图1-4所示，一种新能源驱动电机，包括驱动电机本体，所述驱动电机本体包括机体1和转动轴2，所述转动轴2插设在所述机体1内，所述转动轴2上套接有密封板3，所述密封板3的靠近所述机体1的一端侧壁上设有O形垫圈4，远离所述机体1的一端侧壁上设有圆环形的第一安装孔5，所述第一安装孔5内设有第一油封6，所述机体1靠近所述密封板3的一端侧壁上设有圆环形的第二安装孔7，所述第二安装孔7内设有第二油封8，所述第一油封6和所述第二油封8均设有圆环形的内腔9，所述内腔9内设有自密封结构，所述自密封结构能够使得所述第一油封6和所述第二油封8始终与所述转动轴2紧密相贴。一般所述第一油封6和第二油封8都是密封元件，可以由橡胶制成，但是在使用过程中会造成磨损，而使得密封效果不佳，而当磨损后，与所述转动轴2之间会存在间隙，此时所述自密封结构会推动所述第一油封6或者第二油封8与所述转动轴2紧密相贴，确保良好的密封效果。
具体的，所述自密封结构包括弹簧10、填料压环11和填料组12，所述内腔9内设有多个所述弹簧10、一个圆环形的所述填料压环11和一个呈圆环形的所述填料腔，所述填料腔内填充有所述填料组12，所有的所述弹簧10沿所述内腔9周向分布，所述弹簧10始终处于 压缩状态且与所述填料压环11相连，所述填料组12的两侧分别与所述填料压环11和所述内腔9的靠近所述转动轴2侧的内壁紧密相贴。当磨损后，与所述转动轴2之间会存在间隙，所述弹簧10由于处于压缩状态，会自动伸长推动所述填料压环11压向所述填料组12，而所述填料组12压向所述第一油封6或者所述第二油封8从而使其能够具有更好的密封效果。其中所述填料组12可以由石棉纤维或植物纤维组成。
具体的，所述机体1包括外壳13，所述外壳13上设有多个散热片131。有利于散热。
具体的，所述外壳13的两侧设有若干呈L形的安装板14，所述安装板14上设有若干螺纹孔141。将所述安装板14卡在汽车车架16上。
具体的，所述安装板14内侧设有缓冲垫15。当汽车在行驶过程中，该汽车车架16会随着震动，而设有所述缓冲垫15，能够缓解该新能源驱动电机的震动强度。
值得注意的是图1中为了更好的显示安装板14的结构，故未将螺栓画出，仅仅保留螺纹孔141的状态图。图4是以第一油封6内的内腔中的自密封结构为例，其中，第二油封8内的内腔中的自密封结构与第一油封的内腔中的自密封结构相同。
以上仅为本实用新型的优选实施例而已，并不用于限制本实用新型，尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (6)

  1. 一种新能源驱动电机，其特征在于，包括驱动电机本体，所述驱动电机本体包括机体和转动轴，所述转动轴插设在所述机体内，所述转动轴上套接有密封板，所述密封板的靠近所述机体的一端侧壁上设有O形垫圈，远离所述机体的一端侧壁上设有圆环形的第一安装孔，所述第一安装孔内设有第一油封，所述机体靠近所述密封板的一端侧壁上设有圆环形的第二安装孔，所述第二安装孔内设有第二油封，所述第一油封和所述第二油封均设有圆环形的内腔，所述内腔内设有自密封结构，所述自密封结构能够使得所述第一油封和所述第二油封始终与所述转动轴紧密相贴。
  2. 根据权利要求1所述的新能源驱动电机，其特征在于，所述自密封结构包括弹簧、填料压环和填料组，所述内腔内设有多个所述弹簧、一个圆环形的所述填料压环和一个呈圆环形的填料腔，所述填料腔内填充有所述填料组，所有的所述弹簧沿所述内腔周向分布，所述弹簧始终处于压缩状态且与所述填料压环相连，所述填料组的两侧分别与所述填料压环和所述内腔的靠近所述转动轴侧的内壁紧密相贴。
  3. 根据权利要求2所述的新能源驱动电机，其特征在于，所述填料组由石棉纤维或植物纤维组成。
  4. 根据权利要求1所述的新能源驱动电机，其特征在于，所述机体包括外壳，所述外壳上设有多个散热片。
  5. 根据权利要求4所述的新能源驱动电机，其特征在于，所述外壳的两侧设有若干呈L形的安装板，所述安装板上设有若干螺纹孔。
  6. 根据权利要求5所述的新能源驱动电机，其特征在于，所述安装板内侧设有缓冲垫。
PCT/CN2019/089467 2018-09-04 2019-05-31 一种新能源驱动电机 WO2020048167A1 (zh)

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