WO2023071015A1 - 一种外转子电机 - Google Patents

一种外转子电机 Download PDF

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Publication number
WO2023071015A1
WO2023071015A1 PCT/CN2022/079849 CN2022079849W WO2023071015A1 WO 2023071015 A1 WO2023071015 A1 WO 2023071015A1 CN 2022079849 W CN2022079849 W CN 2022079849W WO 2023071015 A1 WO2023071015 A1 WO 2023071015A1
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WIPO (PCT)
Prior art keywords
sleeve
plate
heat dissipation
electric control
control part
Prior art date
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PCT/CN2022/079849
Other languages
English (en)
French (fr)
Inventor
张善儿
张申
许明华
韩帅
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中山大洋电机股份有限公司
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Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2023071015A1 publication Critical patent/WO2023071015A1/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
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the utility model relates to an outer rotor motor.
  • the existing outer rotor motor system includes a motor and a controller.
  • the motor includes a shaft, a stator assembly, an outer rotor and a sleeve seat, wherein the stator assembly includes a stator core, end insulation and coil windings, and the sleeve
  • the seat includes a bottom plate and a sleeve protruding upward from the middle of the bottom plate.
  • the rotating shaft is located inside the sleeve and the two ends are respectively supported on the bearings.
  • the rotor includes a casing sleeve and a number of permanent magnets installed on the inner wall of the casing sleeve.
  • the stator assembly is nested and installed outside the sleeve.
  • the rotor is set outside the stator assembly, the opening of the casing sleeve has a flange protruding outward, and the wind wheel is installed at the bottom of the flange.
  • the controller includes a box body and control elements, and the box body is installed on the bottom plate.
  • the wind wheel includes the outer ring of the wind wheel at the bottom, the outer ring of the wind wheel is provided with several wind blades in the upper direction, and the inner ring of the wind wheel is arranged on the inner side of the outer ring of the wind wheel, and the diameter of the inner ring of the wind wheel is smaller than the diameter of the outer ring of the wind wheel , the inner side of the outer ring of the wind rotor is connected to the inner ring of the wind rotor through a number of connection points, the gap between the inner ring of the wind rotor and the outer ring of the wind rotor forms an air inlet, and several protrusions are arranged on the bottom plate below the wind rotor to dissipate heat Fins, an air duct is formed between two adjacent cooling fins, and the outer ring of the wind wheel covers the top of the air duct.
  • the outer ring of the wind wheel, the flange, and several blades form a centrifugal fan.
  • the outer rotor rotates Drive the wind wheel to rotate, the air flow radially enters the air duct, then flows into the gap, and is thrown out radially under the action of several fan blades.
  • This structure solves the internal heat dissipation of the motor.
  • the outer rotor motor system has the following problems:
  • the heat dissipation scheme of the controller for the outer rotor motor adopts the natural heat dissipation method.
  • the rotor part has cooling fan blades, because the cooling fan blades are set separately from the controller part, the heat dissipation of the outer rotor part cannot be effectively controlled. part for heat dissipation.
  • This utility model is to provide an external rotor motor, which can solve the technical problem in the prior art that the heat dissipation of the external rotor part cannot effectively dissipate heat for the controller part due to the separation of the heat dissipation blades from the controller part.
  • This utility model is to provide an external rotor motor, including a motor part and an electric control part, wherein:
  • the motor part includes a rotating shaft, a stator assembly, an outer rotor and a sleeve seat.
  • the sleeve seat includes a bottom plate and a sleeve protruding upward from the middle of the bottom plate.
  • the stator assembly is sleeved outside the sleeve
  • the outer rotor is sleeved outside the stator assembly.
  • the outer rotor includes a casing sleeve, a top plate and a number of permanent magnets, the top plate is arranged on the top of the casing sleeve, and a number of permanent magnets are installed on the inner wall of the casing sleeve;
  • the electric control part includes a housing, a lower cover and a control circuit board.
  • the lower cover is installed at the bottom of the housing.
  • a housing cavity is formed between the housing and the lower cover.
  • the control circuit board is installed in the housing cavity.
  • the housing includes an upper end plate and an upper end plate. A side wall with the edge of the plate extending axially;
  • a centrifugal fan blade is also arranged between the casing
  • second cooling ribs protruding from the top surface of the above-mentioned upper end plate, and a second air duct is formed between two adjacent second cooling ribs, and the inner ends of each second cooling ribs form an accommodating cavity , the centrifugal blades are located in the accommodating cavity, and the second air duct communicates with the first air duct through the vent.
  • third heat dissipation ribs protruding from the above-mentioned side panel, the third heat dissipation ribs correspond to the second heat dissipation ribs, and the third heat dissipation ribs and the second heat dissipation ribs are divergent around the accommodating cavity distributed.
  • a wind guide cover is sheathed on the periphery of the electric control part mentioned above, and the wind guide cover surrounds the outer part of the housing of the electric control part.
  • the wind guide cover described above is an annular plate.
  • the above electric control part is surrounded by a wind guide cover, the wind guide cover surrounds the electric control part as a whole, and the bottom of the wind guide cover is provided with an air guide hole, and the air guide hole communicates with the vent.
  • the wind guide cover mentioned above includes an end plate and an annular side plate protruding upward from the edge of the end plate, the air guide hole is arranged in the middle of the end plate, and the end plate and the annular side plate surround the electric control part.
  • the opening of the casing sleeve mentioned above is provided with a flange, and a waterproof baffle is installed at the bottom of the flange.
  • the retaining ring, the first groove is formed between the first retaining ring and the second retaining ring, and the bottom plate protrudes upwards to have an inner water retaining ring and an outer water retaining ring, which are located between the sleeve and the channel.
  • a water storage tank is formed between the inner water retaining ring and the outer water retaining ring, the top of the inner water retaining ring is inserted into the first groove, and the second retaining ring is inserted into the water storage tank, so that the waterproof baffle and the bottom plate A labyrinth waterproof structure is formed between them.
  • the top surface of the above-mentioned top plate is provided with a plurality of cooling fan vanes distributed around the rotation axis in the circumferential direction.
  • a plurality of fourth cooling ribs are arranged on the outer surface of the above-mentioned lower cover.
  • An external rotor motor including a motor part and an electric control part, the edge of the bottom plate axially extends out of the sleeve part, the opening of the sleeve part is covered by a baffle, and the baffle, the sleeve part and the bottom plate enclose the cooling rib cavity , the bottom plate is provided with a number of protruding first heat dissipation ribs distributed circumferentially around the rotating shaft, a first air duct is formed between two adjacent first heat dissipation ribs, and the first heat dissipation ribs are arranged in the cavity of the heat dissipation ribs , there is a ventilation hole in the middle of the baffle, and a number of through holes are opened on the bottom plate close to the sleeve part, each through hole is located between two adjacent first cooling ribs, the ventilation hole passes through the first air duct The hole is connected, and the shell is installed on the sleeve part.
  • centrifugal fan blade between the shell of the electronic control part and the sleeve part.
  • the centrifugal fan blade is located below the vent of the baffle plate.
  • the structure drives the centrifugal fan blade to rotate, the cold air enters the first air channel from the through hole, flows to the vent, and then flows from the vent to between the motor part and the electric control part, and passes through the centrifugal fan blade Throwing the hot air between the motor part and the electric control part to the outside can quickly take the internal heat of the motor part and the electric control part out of the motor part and the electric control part, so that the cooling effect of the parts is good, the heat dissipation effect is improved, and the The whole machine dissipates heat faster.
  • Fig. 1 is a perspective view provided by Embodiment 1 of the utility model
  • Fig. 2 is a front view provided by Embodiment 1 of the utility model
  • Fig. 3 is the sectional view of A-A among Fig. 2;
  • Fig. 4 is a partially enlarged view of B in Fig. 3;
  • Fig. 5 is a partial enlarged view of C in Fig. 3;
  • Fig. 6 is an exploded view of the motor part and the electric control part provided by the first embodiment of the utility model
  • Fig. 7 is another perspective exploded view of the motor part and the electric control part provided by the first embodiment of the utility model
  • Fig. 8 is a partial exploded view of the structure of the motor provided by Embodiment 1 of the present utility model;
  • Fig. 9 is an exploded view of the structure of the motor part provided by Embodiment 1 of the present utility model.
  • Fig. 10 is a perspective view of the sleeve seat provided by Embodiment 1 of the present invention.
  • Fig. 11 is another perspective view of the socket seat provided by Embodiment 1 of the present invention.
  • Fig. 12 is a perspective view provided by the second embodiment of the utility model
  • Fig. 13 is a front view provided by the second embodiment of the utility model
  • Fig. 14 is a sectional view of D-D in Fig. 13;
  • Fig. 15 is a partial enlarged view of E in Fig. 14;
  • Fig. 16 is an exploded view of the motor part and the electric control part provided by the second embodiment of the utility model
  • Fig. 17 is another perspective exploded view of the motor part and the electric control part provided by the second embodiment of the utility model.
  • this embodiment provides an external rotor motor, including a motor part 10 and an electric control part 20, wherein:
  • the motor part 10 includes a rotating shaft 1, a stator assembly 2, an outer rotor 3 and a sleeve seat 4.
  • the sleeve seat 4 includes a bottom plate 41 and a sleeve 42 protruding upward from the middle of the bottom plate 41.
  • the stator assembly 2 is set in the sleeve Outside the cylinder 42, the outer rotor 3 is set outside the stator assembly 2.
  • the outer rotor 3 includes a casing sleeve 31, a top plate 32 and a number of permanent magnets 34.
  • the top plate 32 is arranged on the top of the casing sleeve 31, and the casing sleeve 31 Several permanent magnets 34 are installed on the inner wall;
  • the electric control part 20 includes a housing 201, a lower cover 202 and a control circuit board 203, the lower cover 202 is installed on the bottom of the housing 201, a housing cavity 204 is formed between the housing 201 and the lower cover 202, the control circuit board 203 is installed in the housing In the cavity 204, the housing 201 includes an upper end plate 2012 and a side wall 2013 extending axially from the edge of the upper end plate 2012;
  • first heat dissipation ribs 411 distributed around the rotating shaft 1 in the circumferential direction.
  • a first air duct 412 is formed between two adjacent first heat dissipation ribs 411.
  • the first heat dissipation ribs 411 are arranged in the space of the heat dissipation ribs.
  • vent 61 Inside the cavity 4101, there is a vent 61 in the middle of the baffle plate 6, and a number of through holes 413 are opened on the bottom plate 41 close to the sleeve portion 410, and each through hole 413 is located between two adjacent first cooling ribs 411.
  • the vent 61 communicates with the through hole 413 through the first air channel 412
  • the casing 201 is installed on the sleeve part 410
  • the centrifugal fan 5 is also arranged between the casing 201 of the electronic control part 20 and the sleeve part 410,
  • the centrifugal fan 5 is located below the air vent 61 of the baffle 6, and one end of the rotating shaft 1 protrudes from the bottom plate 41 and is connected with the centrifugal fan 5.
  • This structure drives the centrifugal fan 5 to rotate, and the cold wind enters the first through hole 413.
  • the air duct 412 flows to the vent 61, and then flows from the vent 61 to between the motor part 10 and the electric control part 20, and the hot air between the motor part 10 and the electric control part 20 is thrown out by the centrifugal fan 5 , can quickly take out the internal heat of the motor part 10 and the electric control part 20 to the outside of the motor part 10 and the electric control part 20, so that the cooling effect of the parts is good, the heat dissipation effect is improved, and the heat dissipation of the whole machine is faster.
  • a plurality of second heat dissipation ribs 2011 protrude from the top surface of the above-mentioned upper end plate 2012, and a second air duct 2022 is formed between two adjacent second heat dissipation ribs 2011, and the inner ends of each second heat dissipation rib 2011 form a circle.
  • the accommodating cavity 2010, the centrifugal fan 5 is located in the accommodating cavity 2010, the second air channel 2022 communicates with the first air channel 412 through the vent 61, and the cold air enters the first air channel 412 from the through hole 413 and flows to the vent 61, and then flows from the vent 61 to between the motor part 10 and the electric control part 20, and the centrifugal force of the centrifugal fan 5 makes the cold air flow through the second air channel 2022, and takes away the heat attached to the second cooling rib 2011, Make the cooling effect of the parts good, improve the heat dissipation effect, and make the whole machine dissipate heat faster.
  • a plurality of third cooling ribs 2014 protrude from the above-mentioned side panel 2013, the third cooling ribs 2014 correspond to the second cooling ribs 2011, and the third cooling ribs 2014 and the plurality of second cooling ribs 2011 are surrounded and accommodated.
  • the cavities 2010 are distributed in a divergent shape, and the structural layout is reasonable, which can improve the heat dissipation effect of the electronic control part.
  • the above-mentioned electric control part 20 is surrounded by a wind guide cover 8, the wind guide cover 8 surrounds the outer part of the housing 201 of the electric control part 20, and the cold wind flowing through the second air duct 2022 is guided by the wind guide cover 8
  • the side panels 2013 and the lower cover 202 of the electric control part 20 make the cooling effect of the electric control part 20 better and improve the heat dissipation effect.
  • the above-mentioned wind guide cover 8 is an annular plate, and its structure is reasonable.
  • the opening of the casing sleeve 31 is provided with a flange 33, and a waterproof baffle 7 is installed at the bottom of the flange 33.
  • the waterproof baffle 7 includes a fixed plate 71 and a first protruding downward from the fixed plate 71.
  • the retaining ring 72 and the second retaining ring 73 form a first groove 74 between the first retaining ring 72 and the second retaining ring 73, and the bottom plate 41 protrudes upwards with an inner water retaining ring 414 and an outer water retaining ring 415.
  • the water retaining ring 414 and the outer water retaining ring 415 are located between the sleeve 42 and the through hole 413, the water storage tank 416 is formed between the inner water retaining ring 414 and the outer water retaining ring 415, and the top of the inner water retaining ring 414 is embedded in the first Inside the groove 74, the second retaining ring 73 is inserted into the water storage tank 416, so that a labyrinth waterproof structure is formed between the waterproof baffle plate 7 and the bottom plate 41, the waterproof effect is good, and the structural layout is reasonable.
  • the top surface of the above-mentioned top plate 32 is provided with a plurality of heat dissipation fan blades 321 distributed around the rotating shaft 1 in the circumferential direction, so as to improve the heat dissipation effect of the motor part 10 .
  • the outer surface of the above-mentioned lower cover 202 is provided with a plurality of fourth cooling ribs 2021 to improve the cooling effect of the electronic control part.
  • this embodiment is further improved on the basis of the first embodiment.
  • the above-mentioned electric control part 20 is surrounded by a wind guide cover 8, and the wind guide cover 8 surrounds the electric control part 20 as a whole.
  • the bottom of the air guide hood is provided with an air guide hole 80 , the air guide hole 80 communicates with the vent 61 , and the cold air flowing through the second air channel 2022 is guided to the side panel 2013 of the electronic control part 20 through the air guide cover 8 And the bottom of the lower cover 202, so that the cooling effect of the electronic control part 20 is better, the heat dissipation effect is improved, and the heat dissipation of the whole machine is faster.
  • the cold air is guided to the side panel 2013 of the electronic control part 20 and the bottom of the lower cover 202, and then discharged from the air guide hole 80, so that a heat dissipation air duct is formed between the electric control part 20 and the motor part 10, and the heat dissipation effect is good.
  • the above-mentioned air guide cover 8 includes an end plate 81 and an annular side plate 82 protruding upward from the edge of the end plate 81.
  • the air guide hole 80 is arranged in the middle of the end plate 81.
  • the end plate 81 and the annular side plate 82 connect the electric control part 20 Surrounded, simple structure.

Abstract

本实用新型公开了一种外转子电机，包括电机部分和电控部分，底板的边缘轴向延伸出套筒部，套筒部的开口由挡板遮盖，底板上设有若干条凸起且围绕着转轴周向分布的第一散热筋，相邻的两条第一散热筋之间形成第一风道，挡板中间开设有通风口，底板靠近套筒部的地方开设有若干通孔，每个通孔分别位于相邻两条的第一散热筋之间，通风口通过第一风道与通孔连通，壳体安装在套筒部上，电控部分的壳体与套筒部之间还设有离心风叶，离心风叶位于挡板的通风口的下方，转轴的一端伸出底板并与离心风叶连接，可以快速将电机部分和电控部分内部热量带出到电机部分和电控部分外，使到零件降温效果好，提高散热效果，使整机散热更快。

Description

一种外转子电机 技术领域：
本实用新型涉及一种外转子电机。
背景技术：
现有的外转子电机系统包括电机和控制器，电机包括转轴、定子组件、外转子和套筒座，其中所述的定子组件包括定子铁芯、端部绝缘和线圈绕组，所述的套筒座包括底板和从底板中间往上凸起的套筒，在套筒两端开设有轴承室，轴承室里面安装有轴承，转轴位于套筒里面并且两端分别支承在所述的轴承上，外转子包括机壳套筒和安装在机壳套筒内壁面上的若干永磁体，转轴一端从套筒伸出与机壳套筒安装连接在一起，定子组件嵌套安装在套筒的外面，外转子套设于定子组件外面，机壳套筒的开口处往外伸出有法兰，在法兰底部安装有风轮，控制器包括盒体和控制元件，盒体安装在底板上，所述的风轮包括位于底部的风轮外圈，风轮外圈往上周向设置有若干风叶，风轮外圈的内侧设置风轮内圈，风轮内圈的直径小于风轮外圈的直径，风轮外圈内侧通过若干连接点与风轮内圈连接，风轮内圈与风轮外圈之间的间隙形成入风口，在风轮下方的位置的底板上设有若干条凸起散热翅片，相邻的两个散热翅片之间形成风道，风轮外圈遮挡住风道的顶部，风轮外圈与法兰、若干风叶组成一离心的风扇，当外转子转动时带动风轮转动，气流径向进入风道，然后流入到间隙，在若干风叶的作用下，径向往外甩出，该结构解决了电机内部散热，该外转子电机系统存在以下问题：
现阶段外转子电机采用的控制器散热方案都是采用自然散热的方式，虽然转子部分有散热风叶，但由于散热风叶设置上和控制器部分分离，因此外转子部分的散热无法有效针对控制器部分进行散热。
发明内容：
本实用新型的目的是提供一种外转子电机，能解决现有技术中的由于散热 风叶设置上和控制器部分分离，因此外转子部分的散热无法有效针对控制器部分进行散热的技术问题。
本实用新型的目的是通过下述技术方案予以实现的。
本实用新型的目的是提供一种外转子电机，包括电机部分和电控部分，其中：
电机部分包括转轴、定子组件、外转子和套筒座，所述的套筒座包括底板和从底板中间往上凸起的套筒，定子组件套装在套筒外，外转子套装在定子组件外，外转子包括机壳套筒、顶板和若干永磁体，顶板设置在机壳套筒的顶部，在机壳套筒内壁面上的安装有若干永磁体；
电控部分包括壳体、下盖和控制线路板，下盖安装在壳体的底部，壳体和下盖之间形成容纳腔，控制线路板安装在容纳腔内，壳体包括上端板和上端板的边缘轴向延伸的侧围板；
底板的边缘轴向延伸出套筒部，套筒部的开口由挡板遮盖，挡板、套筒部和底板围城散热筋空腔，底板上设有若干条凸起且围绕着转轴周向分布的第一散热筋，相邻的两条第一散热筋之间形成第一风道，第一散热筋布置在散热筋空腔里面，挡板中间开设有通风口，底板靠近套筒部的地方开设有若干个通孔，每个通孔分别位于相邻两条的第一散热筋之间，通风口通过第一风道与通孔连通，壳体安装在套筒部上，电控部分的壳体与套筒部之间还设有离心风叶，离心风叶位于挡板的通风口的下方，转轴的一端伸出底板并与离心风叶连接。
上述所述的上端板顶面上凸出有若干条第二散热筋，相邻两条的第二散热筋之间形成第二风道，各第二散热筋的内端围成一容置腔，离心风叶位于容置腔里，第二风道通过通风口与第一风道连通。
上述所述的侧围板上凸出有若干第三散热筋，第三散热筋与第二散热筋之间是对应的，若干第三散热筋与若干第二散热筋围绕容置腔呈发散状分布。
上述所述的电控部分外围套设有导风罩，导风罩将电控部分的壳体外围部分包围。
上述所述的导风罩为环形板。
上述所述的电控部分外围套设有导风罩，导风罩将电控部分整体包围住，导风罩的底部设有导风孔，导风孔与通风口连通。
上述所述的导风罩包括端板和从端板边缘往上凸出的环形侧板，导风孔设置在端板中间，端板和环形侧板将电控部分包围。
上述所述的机壳套筒的开口处设有法兰盘，在法兰盘底部安装有防水挡板，防水挡板包括固定板和从固定板往下凸出的第一挡圈和第二挡圈，第一挡圈和第二挡圈之间形成第一凹槽，底板往上凸起有内挡水圈和外挡水圈，内挡水圈和外挡水圈位于套筒和通孔之间，内挡水圈和外挡水圈之间形成储水槽，内挡水圈的顶部嵌入到第一凹槽里面，第二挡圈插入到储水槽里面，使防水挡板与底板之间形成一迷宫式防水结构。
上述所述的顶板的顶面上设有若干绕着转轴周向分布的散热风叶。
上述所述的下盖的外表面上设有若干第四散热筋。
本实用新型与现有技术相比，具有如下效果：
1)一种外转子电机，包括电机部分和电控部分，底板的边缘轴向延伸出套筒部，套筒部的开口由挡板遮盖，挡板、套筒部和底板围城散热筋空腔，底板上设有若干条凸起且围绕着转轴周向分布的第一散热筋，相邻的两条第一散热筋之间形成第一风道，第一散热筋布置在散热筋空腔里面，挡板中间开设有通风口，底板靠近套筒部的地方开设有若干个通孔，每个通孔分别位于相邻两条的第一散热筋之间，通风口通过第一风道与通孔连通，壳体安装在套筒部上，电控部分的壳体与套筒部之间还设有离心风叶，离心风叶位于挡板的通风口的下方，转轴的一端伸出底板并与离心风叶连接，该结构通过带动离心风叶转动，冷风从通孔进入到第一风道流经至通风口，再从通风口流到电机部分和电控部分之间，通过离心风叶将电机部分和电控部分之间的热风甩出至外，可以快速将电机部分和电控部分内部热量带出到电机部分和电控部分外，使到零件降温效果好，提高散热效果，使整机散热更快。
2)本实用新型的其它优点在实施例部分展开详细描述。
附图说明：
图1是本实用新型实施例一提供的立体图；
图2是本实用新型实施例一提供的正视图；
图3是图2中A-A的剖视图；
图4是图3中B的局部放大图；
图5是图3中C的局部放大图；
图6是本实用新型实施例一提供的电机部分和电控部分的分解图；
图7是本实用新型实施例一提供的电机部分和电控部分的另一角度分解图；
图8是本实用新型实施例一提供的电机部分结构局部分解图；
图9是本实用新型实施例一提供的电机部分结构分解图；
图10是本实用新型实施例一提供的套筒座立体图；
图11是本实用新型实施例一提供的套筒座另一角度立体图；
图12是本实用新型实施例二提供的立体图；
图13是本实用新型实施例二提供的正视图；
图14是图13中D-D的剖视图；
图15是图14中E的局部放大图；
图16是本实用新型实施例二提供的电机部分和电控部分的分解图；
图17是本实用新型实施例二提供的电机部分和电控部分的另一角度分解图。
具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一：
如图1至图11所示，本实施例提供的是一种外转子电机，包括电机部分10 和电控部分20，其中：
电机部分10包括转轴1、定子组件2、外转子3和套筒座4，所述的套筒座4包括底板41和从底板41中间往上凸起的套筒42，定子组件2套装在套筒42外，外转子3套装在定子组件2外，外转子3包括机壳套筒31、顶板32和若干永磁体34，顶板32设置在机壳套筒31的顶部，在机壳套筒31内壁面上的安装有若干永磁体34；
电控部分20包括壳体201、下盖202和控制线路板203，下盖202安装在壳体201的底部，壳体201和下盖202之间形成容纳腔204，控制线路板203安装在容纳腔204内，壳体201包括上端板2012和上端板2012的边缘轴向延伸的侧围板2013；
其特征在于：底板41的边缘轴向延伸出套筒部410，套筒部410的开口由挡板6遮盖，挡板6、套筒部410和底板41围城散热筋空腔4101，底板41上设有若干条凸起且围绕着转轴1周向分布的第一散热筋411，相邻的两条第一散热筋411之间形成第一风道412，第一散热筋411布置在散热筋空腔4101里面，挡板6中间开设有通风口61，底板41靠近套筒部410的地方开设有若干个通孔413，每个通孔413分别位于相邻两条的第一散热筋411之间，通风口61通过第一风道412与通孔413连通，壳体201安装在套筒部410上，电控部分20的壳体201与套筒部410之间还设有离心风叶5，离心风叶5位于挡板6的通风口61的下方，转轴1的一端伸出底板41并与离心风叶5连接，该结构通过带动离心风叶5转动，冷风从通孔413进入到第一风道412流经至通风口61，再从通风口61流到电机部分10和电控部分20之间，通过离心风叶5将电机部分10和电控部分20之间的热风甩出至外，可以快速将电机部分10和电控部分20内部热量带出到电机部分10和电控部分20外，使到零件降温效果好，提高散热效果，使整机散热更快。
上述的上端板2012顶面上凸出有若干条第二散热筋2011，相邻两条的第二散热筋2011之间形成第二风道2022，各第二散热筋2011的内端围成一容置腔 2010，离心风叶5位于容置腔2010里，第二风道2022通过通风口61与第一风道412连通，冷风从通孔413进入到第一风道412流经至通风口61，再从通风口61流到电机部分10和电控部分20之间，通过离心风叶5的离心力使冷风流经第二风道2022，将附在第二散热筋2011的热量带走，使到零件降温效果好，提高散热效果，使整机散热更快。
上述的侧围板2013上凸出有若干第三散热筋2014，第三散热筋2014与第二散热筋2011之间是对应的，若干第三散热筋2014与若干第二散热筋2011围绕容置腔2010呈发散状分布，结构布置合理，可以提高电控部分的散热效果。
上述的电控部分20外围套设有导风罩8，导风罩8将电控部分20的壳体201外围部分包围，通过导风罩8将流经至第二风道2022的冷风导流至电控部分20的侧围板2013和下盖202，使到电控部分20降温效果更好，提高散热效果。
上述的导风罩8为环形板，结构布置合理。
上述的机壳套筒31的开口处设有法兰盘33，在法兰盘33底部安装有防水挡板7，防水挡板7包括固定板71和从固定板71往下凸出的第一挡圈72和第二挡圈73，第一挡圈72和第二挡圈73之间形成第一凹槽74，底板41往上凸起有内挡水圈414和外挡水圈415，内挡水圈414和外挡水圈415位于套筒42和通孔413之间，内挡水圈414和外挡水圈415之间形成储水槽416，内挡水圈414的顶部嵌入到第一凹槽74里面，第二挡圈73插入到储水槽416里面，使防水挡板7与底板41之间形成一迷宫式防水结构，防水效果好，结构布置合理。
上述的顶板32的顶面上设有若干绕着转轴1周向分布的散热风叶321，提高电机部分10散热效果。
上述的下盖202的外表面上设有若干第四散热筋2021，提高电控部分的散热效果。
工作原理：当外转子3转动时，带动离心风叶5转动，冷风从通孔413进入到第一风道412流经至通风口61，再从通风口61流到电机部分10和电控部 分20之间，通过离心风叶5的离心力使冷风流经第二风道2022，将附在第二散热筋2011的热量带走，再通过导风罩8将流经至第二风道2022的冷风导流至电控部分20的侧围板2013和下盖202，使电控部分20与电机部分10之间形成一散热风道，散热效果好。
实施例二：
如图12至图17所示，本实施例是根据实施例一的基础进一步改进，上述的电控部分20外围套设有导风罩8，导风罩8将电控部分20整体包围住，导风罩的底部设有导风孔80，导风孔80与通风口61连通，通过导风罩8将流经至第二风道2022的冷风导流至电控部分20的侧围板2013和下盖202的底部，使到电控部分20降温效果更好，提高散热效果，使整机散热更快。
工作原理：当外转子3转动时，带动离心风叶5转动，冷风从通孔413进入到第一风道412流经至通风口61，再从通风口61流到电机部分10和电控部分20之间，通过离心风叶5的离心力使冷风流经第二风道2022，将附在第二散热筋2011的热量带走，再通过导风罩8将流经至第二风道2022的冷风导流至电控部分20的侧围板2013和下盖202的底部，再从导风孔80排出，使电控部分20与电机部分10之间形成一散热风道，散热效果好。
上述的导风罩8包括端板81和从端板81边缘往上凸出的环形侧板82，导风孔80设置在端板81中间，端板81和环形侧板82将电控部分20包围，结构简单。
以上实施例为本实用新型的较佳实施方式，但本实用新型的实施方式不限于此，其他任何未背离本实用新型的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本实用新型的保护范围之内。

Claims (10)

  1. 一种外转子电机，包括电机部分(10)和电控部分(20)，其中：
    电机部分(10)包括转轴(1)、定子组件(2)、外转子(3)和套筒座(4)，所述的套筒座(4)包括底板(41)和从底板(41)中间往上凸起的套筒(42)，定子组件(2)套装在套筒(42)外，外转子(3)套装在定子组件(2)外，外转子(3)包括机壳套筒(31)、顶板(32)和若干永磁体(34)，顶板(32)设置在机壳套筒(31)的顶部，在机壳套筒(31)内壁面上的安装有若干永磁体(34)；
    电控部分(20)包括壳体(201)、下盖(202)和控制线路板(203)，下盖(202)安装在壳体(201)的底部，壳体(201)和下盖(202)之间形成容纳腔(204)，控制线路板(203)安装在容纳腔(204)内，壳体(201)包括上端板(2012)和上端板(2012)的边缘轴向延伸的侧围板(2013)；
    其特征在于：底板(41)的边缘轴向延伸出套筒部(410)，套筒部(410)的开口由挡板(6)遮盖，挡板(6)、套筒部(410)和底板(41)围城散热筋空腔(4101)，底板(41)上设有若干条凸起且围绕着转轴(1)周向分布的第一散热筋(411)，相邻的两条第一散热筋(411)之间形成第一风道(412)，第一散热筋(411)布置在散热筋空腔(4101)里面，挡板(6)中间开设有通风口(61)，底板(41)靠近套筒部(410)的地方开设有若干个通孔(413)，每个通孔(413)分别位于相邻两条的第一散热筋(411)之间，通风口(61)通过第一风道(412)与通孔(413)连通，壳体(201)安装在套筒部(410)上，电控部分(20)的壳体(201)与套筒部(410)之间还设有离心风叶(5)，离心风叶(5)位于挡板(6)的通风口(61)的下方，转轴(1)的一端伸出底板(41)并与离心风叶(5)连接。
  2. 根据权利要求1所述的一种外转子电机，其特征在于：上端板(2012)顶面上凸出有若干条第二散热筋(2011)，相邻两条的第二散热筋(2011)之间形成第二风道(2022)，各第二散热筋(2011)的内端围成一容置腔(2010)，离心风叶(5)位于容置腔(2010)里，第二风道(2022)通过通风口(61)与第一风道(412)连通。
  3. 根据权利要求2所述的一种外转子电机，其特征在于：侧围板(2013)上凸出有若干第三散热筋(2014)，第三散热筋(2014)与第二散热筋(2011)之间是对应的，若干第三散热筋(2014)与若干第二散热筋(2011)围绕容置腔(2010)呈发散状分布。
  4. 根据权利要求1或2或3所述的一种外转子电机，其特征在于：电控部分(20)外围套设有导风罩(8)，导风罩(8)将电控部分(20)的壳体(201)外围部分包围。
  5. 根据权利要求4所述的一种外转子电机，其特征在于：导风罩(8)为环形板。
  6. 根据权利要求1或2或3所述的一种外转子电机，其特征在于：电控部分(20)外围套设有导风罩(8)，导风罩(8)将电控部分(20)整体包围住，导风罩的底部设有导风孔(80)，导风孔(80)与通风口(61)连通。
  7. 根据权利要求6所述的一种外转子电机，其特征在于：导风罩(8)包括端板(81)和从端板(81)边缘往上凸出的环形侧板(82)，导风孔(80)设置在端板(81)中间，端板(81)和环形侧板(82)将电控部分(20)包围。
  8. 根据权利要求7所述的一种外转子电机，其特征在于：机壳套筒(31)的开口处设有法兰盘(33)，在法兰盘(33)底部安装有防水挡板(7)，防水挡板(7)包括固定板(71)和从固定板(71)往下凸出的第一挡圈(72)和第二挡圈(73)，第一挡圈(72)和第二挡圈(73)之间形成第一凹槽(74)，底板(41)往上凸起有内挡水圈(414)和外挡水圈(415)，内挡水圈(414)和外挡水圈(415)位于套筒(42)和通孔(413)之间，内挡水圈(414)和外挡水圈(415)之间形成储水槽(416)，内挡水圈(414)的顶部嵌入到第一凹槽(74)里面，第二挡圈(73)插入到储水槽(416)里面，使防水挡板(7)与底板(41)之间形成一迷宫式防水结构。
  9. 根据权利要求8所述的一种外转子电机，其特征在于：顶板(32)的顶面上设有若干绕着转轴(1)周向分布的散热风叶(321)。
  10. 根据权利要求9所述的一种外转子电机，其特征在于：下盖(202)的外表面上设有若干第四散热筋(2021)。
PCT/CN2022/079849 2021-10-29 2022-03-09 一种外转子电机 WO2023071015A1 (zh)

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