WO2021196516A1 - External rotor motor - Google Patents

External rotor motor Download PDF

Info

Publication number
WO2021196516A1
WO2021196516A1 PCT/CN2020/112436 CN2020112436W WO2021196516A1 WO 2021196516 A1 WO2021196516 A1 WO 2021196516A1 CN 2020112436 W CN2020112436 W CN 2020112436W WO 2021196516 A1 WO2021196516 A1 WO 2021196516A1
Authority
WO
WIPO (PCT)
Prior art keywords
centrifugal fan
baffle
ring
sleeve
air inlet
Prior art date
Application number
PCT/CN2020/112436
Other languages
French (fr)
Chinese (zh)
Inventor
张申
Original Assignee
中山大洋电机股份有限公司
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 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 WO2021196516A1 publication Critical patent/WO2021196516A1/en

Links

Images

Classifications

    • 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
    • H02K5/20—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 includes a rotating shaft, a stator assembly, an outer rotor and a sleeve base.
  • the stator assembly includes a stator core, end insulation and coil windings.
  • the sleeve base includes a bottom plate and The upward protruding sleeve is provided with bearing chambers at both ends of the sleeve. Bearings are installed in the bearing chamber.
  • the rotating shaft is located in the sleeve and the two ends are respectively supported on the bearings.
  • the outer rotor includes a casing sleeve and Several permanent magnets are installed on the inner wall of the casing sleeve.
  • the rotating shaft extends from the sleeve and is installed and connected to the casing sleeve.
  • the stator assembly is nested and installed on the outside of the sleeve, and the outer rotor is sleeved on the outside of the stator assembly.
  • There is a flange protruding from the opening of the casing sleeve a wind wheel is installed at the bottom of the flange, and a number of raised radiating fins are provided on the bottom plate at the position below the wind wheel, two adjacent radiating fins
  • An air duct is formed between the fins, and the bottom of the motor forms an air outlet heat dissipation structure. Since the top is closed, there is no air intake design.
  • the interior of the motor is a semi-enclosed structure.
  • the stator is in the central area of the interior, and the heat generated by the winding is difficult to dissipate or discharge.
  • the temperature of the winding is relatively high, and it still does not form convection to the internal heat of the motor, and the heat dissipation capacity is limited.
  • the purpose of the utility model is to provide an outer rotor motor, which solves the problem of the air outlet heat dissipation structure formed at the bottom of the outer rotor motor in the prior art.
  • the top is closed, there is no air intake design, and the inside of the motor is a semi-closed structure.
  • the internal heat of the motor forms convection, and the heat generated by the winding in the central area of the stator is difficult to dissipate or discharge, resulting in a technical problem that the temperature of the winding is relatively high.
  • the purpose of the utility model is to provide an outer rotor motor, which includes a rotating shaft, a stator assembly, an outer rotor and a sleeve base.
  • the stator assembly includes a stator core, end insulation and coil windings.
  • the upper protruding sleeve, the outer rotor includes a casing sleeve and a number of permanent magnets installed on the inner wall of the casing sleeve.
  • the casing sleeve is provided with a cavity, and one end of the rotating shaft extends from the sleeve to the casing sleeve.
  • the cylinders are installed and connected together, the stator assembly is nested and installed outside the sleeve, the outer rotor is sleeved outside the stator assembly, the opening of the casing sleeve is extended outwards with a flange, and a centrifugal fan is installed at the bottom of the flange.
  • There is an air outlet between the fan and the bottom plate which is characterized in that: a labyrinth air inlet is provided on the top of the casing sleeve, the labyrinth air inlet, the cavity and the air outlet are connected, and the air enters the motor from the labyrinth air inlet The inside is then discharged from the air outlet.
  • the outer rotor rotates to drive the centrifugal fan to rotate together.
  • the centrifugal fan draws out the air and gas inside the motor, so that the airflow circulates and dissipates the heat in the direction of the motor.
  • the aforementioned labyrinth air inlet includes an end cover and a baffle cover.
  • the end cover is installed on the top of the casing sleeve
  • the baffle cover is installed on the top surface of the end cover
  • the end cover is provided above the coil windings.
  • a number of air inlet slots, the outer side and the inner side of the air inlet slot are respectively provided with a first baffle and a second baffle
  • the top surface of the end cover is provided with a third baffle
  • the third baffle is located on the first baffle
  • a first groove is formed between the periphery and the first baffle.
  • the baffle cover includes a first ring plate and a second ring plate. The top ends of the first ring plate and the second ring plate are connected by a connecting plate.
  • the second baffle and the second annular plate are sleeved together, the first annular plate is inserted into the first groove to form a labyrinth-type air inlet channel, and the labyrinth-type air inlet channel is connected with the air inlet notch,
  • the connecting plate covers the air inlet slot.
  • the height H1 of the aforementioned third baffle is lower than the height H2 of the first baffle.
  • the above-mentioned baffle cover is locked on the end cover by screws.
  • the bottom end of the second annular plate extends inward with a mounting plate.
  • the mounting plate of the baffle cover is provided with a number of first mounting holes.
  • a plurality of second mounting holes corresponding to the plurality of first mounting holes of the mounting plate are provided, and screws are screwed into the first mounting holes and the second mounting holes, so that the baffle cover body is locked on the end cover.
  • a plurality of first fan blade reinforcement ribs are arranged on the bottom surface of the above-mentioned end cover.
  • the above-mentioned centrifugal fan includes a centrifugal fan outer ring at the bottom.
  • the centrifugal fan outer ring is provided with a plurality of wind blades in the upper circumferential direction.
  • the centrifugal fan inner ring is arranged inside the centrifugal fan outer ring, and the diameter of the centrifugal fan inner ring is smaller than that of the centrifugal fan.
  • the diameter of the outer ring, the inner side of the outer ring of the centrifugal fan is connected with the inner ring of the centrifugal fan through a number of connection points.
  • the gap between the inner ring of the centrifugal fan and the outer ring of the centrifugal fan forms an air inlet.
  • a number of blades are arranged on the inner side wall of the inner ring of the centrifugal fan.
  • the above-mentioned centrifugal fan inner ring includes a top plate and a first retaining ring and a second retaining ring protruding downward from the top plate.
  • a groove is formed between the first retaining ring and the second retaining ring, and the bottom plate has an inner retaining ring protruding upward.
  • the water ring and the outer water retaining ring, the inner water retaining ring and the outer water retaining ring are located on the periphery of the sleeve, a water storage tank is formed between the inner water retaining ring and the outer water retaining ring, and the top of the inner water retaining ring is embedded in the groove,
  • the second retaining ring is inserted into the water storage tank to form a labyrinth air outlet between the centrifugal fan and the bottom plate.
  • a plurality of second fan blade reinforcement ribs are arranged on the end surface of the aforementioned bottom plate.
  • a number of notches are provided on the above-mentioned outer water retaining ring, and a shielding baffle is provided on the outside of the notches.
  • the utility model includes a rotating shaft, a stator assembly, an outer rotor and a sleeve base.
  • the stator assembly includes a stator core, end insulation and coil windings.
  • the sleeve base includes a bottom plate and a sleeve protruding upward from the middle of the bottom plate.
  • the rotor includes a casing sleeve and a number of permanent magnets installed on the inner wall of the casing sleeve.
  • the casing sleeve is provided with a cavity, and the opening of the casing sleeve extends outwards with a flange, which is installed at the bottom of the flange There is a centrifugal fan.
  • an air outlet between the centrifugal fan and the bottom plate. It is characterized in that: a labyrinth air inlet is provided on the top of the casing sleeve. The labyrinth air inlet, the cavity and the air outlet are connected, and the air flows from the labyrinth The air inlet enters the motor and then exits from the air outlet.
  • the outer rotor rotates to drive the centrifugal fan to rotate together.
  • the centrifugal fan draws out the air inside the motor, so that the airflow circulates and dissipates the air inside the motor and effectively reduces the winding temperature. The heat dissipation effect is good, and the normal operation of the motor is ensured.
  • Figure 1 is a perspective view of the utility model
  • Figure 2 is an exploded view of the partial structure of the utility model
  • Figure 3 is a partial structural exploded view of the utility model from another angle
  • Figure 4 is a schematic diagram of the structure of the utility model
  • Figure 5 is a schematic structural view of the utility model from another angle
  • Figure 6 is a top view of the utility model
  • Figure 7 is a cross-sectional view of A-A in Figure 6;
  • Fig. 8 is a partial enlarged view of B in Fig. 7;
  • Figure 9 is a partial enlarged view of C in Figure 7;
  • Figure 10 is a schematic diagram of the structure of the end cap of the present invention.
  • Figure 11 is a schematic diagram of the gas flow in use of the present utility model.
  • this embodiment provides an outer rotor motor, which includes a rotating shaft 1, a stator assembly 2, an outer rotor 3, and a sleeve base 4.
  • the stator assembly 2 includes a stator core 21 and end insulation. 22 and the coil winding 23.
  • the sleeve base 4 includes a bottom plate 41 and a sleeve 42 protruding upward from the middle of the bottom plate 41.
  • the outer rotor 3 includes a casing sleeve 31 and a number of permanent walls mounted on the inner wall of the casing sleeve 31.
  • the magnet 32 is provided with a cavity 310 in the casing sleeve 31.
  • the stator assembly 2 is nested and installed on the outside of the sleeve 42, and the outer rotor 3 is sleeved outside the stator assembly 2, a flange 33 extends outward from the opening of the casing sleeve 31, a centrifugal fan 5 is installed at the bottom of the flange 33, and an air outlet 400 is provided between the centrifugal fan 5 and the bottom plate 41, It is characterized in that: a labyrinth air inlet 300 is provided on the top of the casing sleeve 31, the labyrinth air inlet 300, the cavity 310 and the air outlet 400 are connected, and the air enters the motor from the labyrinth air inlet 300 and then from there The air outlet 400 is discharged.
  • the outer rotor 3 rotates to drive the centrifugal fan 5 to rotate together.
  • the centrifugal fan 5 draws out the air and gas inside the motor, so that the airflow circulates and dissipates heat in the direction of the motor.
  • the labyrinth air inlet 300 includes an end cover 301 and a baffle cover 302.
  • the end cover 301 is installed on the top of the casing sleeve 31.
  • the baffle cover 302 is installed on the top surface 3014 of the end cover 301.
  • the end cover 301 corresponds to the coil
  • a number of air inlet slots 3011 are provided above the winding 23.
  • a first baffle 3012 and a second baffle 3013 are provided on the outside and inside of the air inlet slot 3011, and a third baffle 3014 is provided on the top surface 3014 of the end cover 301.
  • the baffle 3015, the third baffle 3015 is located at the periphery of the first baffle 3012 and forms a first groove 3016 between the first baffle 3012 and the first baffle 3012.
  • the baffle cover 302 includes a first annular plate 3021 and a second annular plate 3022 , The first ring plate 3021 and the second ring plate 3022 are provided with a connecting plate 3023 at the top end.
  • the annular plate 3021 is inserted into the first groove 3016 to form a labyrinth-type air inlet channel 3017.
  • the labyrinth-type air inlet channel 3017 communicates with the air inlet slot 3011.
  • the connecting plate 3023 covers the air inlet slot 3011, effectively preventing the air inlet Rainwater enters.
  • the height H1 of the third baffle 3015 is lower than the height H2 of the first baffle 3012, which effectively prevents rainwater from entering the inside of the motor and has a good waterproof effect.
  • the baffle cover 302 is locked on the end cover 301 by screws.
  • the bottom end of the second annular plate 3022 extends inward with a mounting plate 3024.
  • the mounting plate 3024 of the baffle cover 302 is provided with a number of first mounting holes 3025.
  • the end cover 301 is provided with a number of second mounting holes 3018 corresponding to the number of first mounting holes 3025 of the mounting plate 3024. Screw the screws into the first and second mounting holes to lock the baffle cover 302 On the end cover 301, the structure is simple and the installation is simple.
  • the bottom surface 3019 of the end cover 301 is provided with a number of first fan blade reinforcement ribs 6, which can directly cool the windings by the air entering from the outside, and can also accelerate the air flow to the other end, and the heat dissipation effect is good.
  • the centrifugal fan 5 includes a centrifugal fan outer ring 51 at the bottom.
  • the centrifugal fan outer ring 51 is provided with a plurality of wind blades 52 in the upper circumferential direction.
  • a centrifugal fan inner ring 53 is arranged inside the centrifugal fan outer ring 51.
  • the diameter of the centrifugal fan 53 is smaller than the diameter of the centrifugal fan outer ring 51.
  • the inner side of the centrifugal fan outer ring 51 is connected to the centrifugal fan inner ring 53 through several connection points.
  • the gap 55 between the centrifugal fan inner ring 53 and the centrifugal fan outer ring 51 forms an air inlet
  • a number of raised radiating fins 411 are provided on the bottom plate 41 at a position below the centrifugal fan 5
  • an air duct 412 is formed between two adjacent radiating fins 411
  • the outer ring 51 of the centrifugal fan covers the top of the air duct 412
  • the centrifugal fan outer ring 51, flange 33, and several blades 52 form a centrifugal fan.
  • a number of blades 59 are arranged on the inner side wall of the inner ring 53 of the centrifugal fan to improve the air flow inside the motor and increase the heat dissipation effect inside the motor.
  • the centrifugal fan inner ring 53 includes a top plate 531 and a first retaining ring 532 and a second retaining ring 533 protruding downward from the top plate 531.
  • a second groove 534 is formed between the first retaining ring 532 and the second retaining ring 533, and the bottom plate 41
  • the inner water retaining ring 43 and the outer water retaining ring 44 are protruding upward.
  • the inner water retaining ring 43 and the outer water retaining ring 44 are located on the periphery of the sleeve 42.
  • a storage is formed between the inner water retaining ring 43 and the outer water retaining ring 44.
  • the top of the inner water retaining ring 43 is embedded in the second groove 534, and the second retaining ring 533 is inserted into the water storage tank 45, so that a labyrinth air outlet 400 is formed between the centrifugal fan and the bottom plate, which has good waterproofness. Ensure product performance.
  • a number of second fan blade reinforcement ribs 46 are provided on the end surface of the bottom plate 41 to improve the heat dissipation effect inside the motor.
  • a plurality of notches 441 are provided on the outer water retaining ring 44, and a shielding baffle 47 is provided on the outer side of the notches 441 to prevent external water droplets from entering the water storage tank 45 through the notches 441.

Landscapes

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

Abstract

Disclosed in the present utility model is an external rotor motor, comprising a rotating shaft, a stator assembly, an external rotor and a sleeve seat; the stator assembly comprises a stator iron core, an end insulation and a coil winding, the sleeve seat comprises a bottom plate and a sleeve protruding upward from the middle of the bottom plate, the external rotor comprises a housing sleeve and several permanent magnets mounted on an inner wall face of the housing sleeve, a cavity is provided in the housing sleeve, and a flange extends outward from an opening of the housing sleeve, a centrifugal fan is mounted at the bottom of the flange, and an air outlet is provided between the centrifugal fan and the bottom plate; a labyrinth air inlet is provided on the top of the housing sleeve, the labyrinth air inlet, the cavity and the air outlet are in communication, air enters the motor from the labyrinth air inlet and then is discharged from the air outlet, and when the motor is running, the external rotor rotates to drive the centrifugal fan to rotate together with the external rotor, and the centrifugal fan draws out of the air from the interior of the motor, so that the airflow circulates inside the motor in a directional manner so as to dissipate heat, effectively reducing the winding temperature, having good heat dissipation effect, and ensuring normal operation of the motor.

Description

一种外转子电机An outer rotor motor 技术领域：Technical field:
本实用新型涉及一种外转子电机。The utility model relates to an outer rotor motor.
背景技术：Background technique:
现有的外转子电机,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，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，电机底部形成出风散热结构，由于顶部是封闭的，没有进风设计，电机内部是半封闭结构，定子在内部的中心区域，绕组产生的热量很难散去或排出，绕组的温度就比较高，仍然不会对电机内部热量形成对流，散热能力有限。The existing outer rotor motor includes a rotating shaft, a stator assembly, an outer rotor and a sleeve base. The stator assembly includes a stator core, end insulation and coil windings. The sleeve base includes a bottom plate and The upward protruding sleeve is provided with bearing chambers at both ends of the sleeve. Bearings are installed in the bearing chamber. The rotating shaft is located in the sleeve and the two ends are respectively supported on the bearings. The outer rotor includes a casing sleeve and Several permanent magnets are installed on the inner wall of the casing sleeve. One end of the rotating shaft extends from the sleeve and is installed and connected to the casing sleeve. The stator assembly is nested and installed on the outside of the sleeve, and the outer rotor is sleeved on the outside of the stator assembly. , There is a flange protruding from the opening of the casing sleeve, a wind wheel is installed at the bottom of the flange, and a number of raised radiating fins are provided on the bottom plate at the position below the wind wheel, two adjacent radiating fins An air duct is formed between the fins, and the bottom of the motor forms an air outlet heat dissipation structure. Since the top is closed, there is no air intake design. The interior of the motor is a semi-enclosed structure. The stator is in the central area of the interior, and the heat generated by the winding is difficult to dissipate or discharge. , The temperature of the winding is relatively high, and it still does not form convection to the internal heat of the motor, and the heat dissipation capacity is limited.
发明内容：Summary of the invention:
本实用新型的目的是提供一种外转子电机，解决现有技术中外转子电机底部形成出风散热结构，但由于顶部是封闭的，没有进风设计，电机内部是半封闭结构，仍然不会对电机内部热量形成对流，定子在内部的中心区域绕组产生的热量很难散去或排出，导致绕组的温度比较高的技术问题。The purpose of the utility model is to provide an outer rotor motor, which solves the problem of the air outlet heat dissipation structure formed at the bottom of the outer rotor motor in the prior art. However, because the top is closed, there is no air intake design, and the inside of the motor is a semi-closed structure. The internal heat of the motor forms convection, and the heat generated by the winding in the central area of the stator is difficult to dissipate or discharge, resulting in a technical problem that the temperature of the winding is relatively high.
本实用新型的目的是通过下述技术方案予以实现的。The purpose of the utility model is achieved through the following technical solutions.
本实用新型的目的是提供一种外转子电机，包括转轴、定子组件、外转子和套筒座，定子组件包括定子铁芯、端部绝缘和线圈绕组，套筒座包括底板和从底板中间往上凸起的套筒，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，机壳套筒内设有空腔，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，在法兰底部安装有离心风扇,离心风扇与底板之间设有出风口，其特征在于:机壳套筒顶部上设有迷宫式进风口，迷宫式进风口、空腔和出风口是连通的，空气从迷宫式进风口进入到电机内部后再从出风口排出，电机运行时，外转子转动带动离心风扇一起旋转，离心风扇将电机内部的空气气体抽出，使气流在电机内部定向流通散热。The purpose of the utility model is to provide an outer rotor motor, which includes a rotating shaft, a stator assembly, an outer rotor and a sleeve base. The stator assembly includes a stator core, end insulation and coil windings. The upper protruding sleeve, the outer rotor includes a casing sleeve and a number of permanent magnets installed on the inner wall of the casing sleeve. The casing sleeve is provided with a cavity, and one end of the rotating shaft extends from the sleeve to the casing sleeve. The cylinders are installed and connected together, the stator assembly is nested and installed outside the sleeve, the outer rotor is sleeved outside the stator assembly, the opening of the casing sleeve is extended outwards with a flange, and a centrifugal fan is installed at the bottom of the flange. There is an air outlet between the fan and the bottom plate, which is characterized in that: a labyrinth air inlet is provided on the top of the casing sleeve, the labyrinth air inlet, the cavity and the air outlet are connected, and the air enters the motor from the labyrinth air inlet The inside is then discharged from the air outlet. When the motor is running, the outer rotor rotates to drive the centrifugal fan to rotate together. The centrifugal fan draws out the air and gas inside the motor, so that the airflow circulates and dissipates the heat in the direction of the motor.
上述所述迷宫式进风口包括端盖和挡板罩体，端盖安装在机壳套筒的顶部，挡板罩体安装在端盖的顶面上，端盖对应线圈绕组的上方处设有若干进风槽口，进风槽口的外侧和内侧分别设有第一挡板和第二挡板，端盖的顶面上设有第三挡板，第三挡板位于第一挡板的***且与第一挡板之间形成第一凹槽，挡板罩体包括第一环形板和第二环形板，第一环形板与第二环形板的顶端设有连接板连接，挡板罩体安装在端盖上时第二挡板与第二环形板套装在一起，第一环形板***到第一凹槽里形成迷宫式进风通道，迷宫式进风通道与进风槽口连通，连接板将进风槽口遮盖。The aforementioned labyrinth air inlet includes an end cover and a baffle cover. The end cover is installed on the top of the casing sleeve, the baffle cover is installed on the top surface of the end cover, and the end cover is provided above the coil windings. A number of air inlet slots, the outer side and the inner side of the air inlet slot are respectively provided with a first baffle and a second baffle, the top surface of the end cover is provided with a third baffle, the third baffle is located on the first baffle A first groove is formed between the periphery and the first baffle. The baffle cover includes a first ring plate and a second ring plate. The top ends of the first ring plate and the second ring plate are connected by a connecting plate. When the body is installed on the end cover, the second baffle and the second annular plate are sleeved together, the first annular plate is inserted into the first groove to form a labyrinth-type air inlet channel, and the labyrinth-type air inlet channel is connected with the air inlet notch, The connecting plate covers the air inlet slot.
上述所述第三挡板的高度H1低于第一挡板的高度H2。The height H1 of the aforementioned third baffle is lower than the height H2 of the first baffle.
上述所述挡板罩体通过螺钉锁紧在端盖上，第二环形板的底端往内伸出一安装板,挡板罩体的安装板上设有若干第一安装孔，端盖上设有与安装板的若干第一安装孔对应的若干个第二安装孔，将螺钉旋进第一安装孔和第二安装孔，使挡板罩体锁紧在端盖上。The above-mentioned baffle cover is locked on the end cover by screws. The bottom end of the second annular plate extends inward with a mounting plate. The mounting plate of the baffle cover is provided with a number of first mounting holes. A plurality of second mounting holes corresponding to the plurality of first mounting holes of the mounting plate are provided, and screws are screwed into the first mounting holes and the second mounting holes, so that the baffle cover body is locked on the end cover.
上述所述端盖的底面上设有若干第一扇叶加强筋。A plurality of first fan blade reinforcement ribs are arranged on the bottom surface of the above-mentioned end cover.
上述所述的离心风扇包括位于底部的离心风扇外圈，离心风扇外圈往上周向设置有若干风叶，离心风扇外圈的内侧设置离心风扇内圈，离心风扇内圈的直径小于离心风扇外圈的直径，离心风扇外圈内侧通过若干连接点与离心风扇内圈连接，离心风扇内圈与离心风扇外圈之间的间隙形成入风口，在离心风扇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，离心风扇外圈遮挡住风道的顶部，离心风扇外圈与法兰、若干风叶组成一离心的风扇，当外转子转动时带动离心风扇转动，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。The above-mentioned centrifugal fan includes a centrifugal fan outer ring at the bottom. The centrifugal fan outer ring is provided with a plurality of wind blades in the upper circumferential direction. The centrifugal fan inner ring is arranged inside the centrifugal fan outer ring, and the diameter of the centrifugal fan inner ring is smaller than that of the centrifugal fan The diameter of the outer ring, the inner side of the outer ring of the centrifugal fan is connected with the inner ring of the centrifugal fan through a number of connection points. The gap between the inner ring of the centrifugal fan and the outer ring of the centrifugal fan forms an air inlet. There are convex radiating fins, and an air duct is formed between two adjacent radiating fins. The outer ring of the centrifugal fan covers the top of the air duct. When the outer rotor rotates, the centrifugal fan is driven to rotate, and the airflow enters the air duct radially, then flows into the gap, and is thrown out radially outward under the action of several wind blades.
上述所述离心风扇内圈的内侧壁设置若干叶片。A number of blades are arranged on the inner side wall of the inner ring of the centrifugal fan.
上述所述离心风扇内圈包括顶板和从顶板往下凸出第一挡圈和第二挡圈，第一挡圈和第二挡圈之间形成一个凹槽，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的***，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凹槽里面，第二挡圈***到储水槽里面，使离心风扇与底板之间形成一迷宫式出风口。The above-mentioned centrifugal fan inner ring includes a top plate and a first retaining ring and a second retaining ring protruding downward from the top plate. A groove is formed between the first retaining ring and the second retaining ring, and the bottom plate has an inner retaining ring protruding upward. The water ring and the outer water retaining ring, the inner water retaining ring and the outer water retaining ring are located on the periphery of the sleeve, a water storage tank is formed between the inner water retaining ring and the outer water retaining ring, and the top of the inner water retaining ring is embedded in the groove, The second retaining ring is inserted into the water storage tank to form a labyrinth air outlet between the centrifugal fan and the bottom plate.
上述所述底板的端面上设有若干第二扇叶加强筋。A plurality of second fan blade reinforcement ribs are arranged on the end surface of the aforementioned bottom plate.
上述所述外挡水圈上设有若干缺口，缺口的外侧设置遮挡板。A number of notches are provided on the above-mentioned outer water retaining ring, and a shielding baffle is provided on the outside of the notches.
本实用新型与现有技术相比，具有如下效果：Compared with the prior art, the utility model has the following effects:
1)本实用新型包括转轴、定子组件、外转子和套筒座，定子组件包括定子铁芯、端部绝缘和线圈绕组，套筒座包括底板和从底板中间往上凸起的套筒，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，机壳套筒内设有空腔，机壳套筒的开口处往外伸出有法兰，在法兰底部安装有离心风扇,离心风扇与底板之间设有出风口，其特征在于:机壳套筒顶部上设有迷宫式进风口，迷宫式进风口、空腔和出风口是连通的，空气从迷宫式进风口进入到电机内部后再从出风口排出，电机运行时，外转子转动带动离心风扇一起旋转，离心风扇将电机内部的空气气体抽出，使气流在电机内部定向流通散热，有效降低绕组温度，散热效果好，保证电机正常运行。1) The utility model includes a rotating shaft, a stator assembly, an outer rotor and a sleeve base. The stator assembly includes a stator core, end insulation and coil windings. The sleeve base includes a bottom plate and a sleeve protruding upward from the middle of the bottom plate. The rotor includes a casing sleeve and a number of permanent magnets installed on the inner wall of the casing sleeve. The casing sleeve is provided with a cavity, and the opening of the casing sleeve extends outwards with a flange, which is installed at the bottom of the flange There is a centrifugal fan. There is an air outlet between the centrifugal fan and the bottom plate. It is characterized in that: a labyrinth air inlet is provided on the top of the casing sleeve. The labyrinth air inlet, the cavity and the air outlet are connected, and the air flows from the labyrinth The air inlet enters the motor and then exits from the air outlet. When the motor is running, the outer rotor rotates to drive the centrifugal fan to rotate together. The centrifugal fan draws out the air inside the motor, so that the airflow circulates and dissipates the air inside the motor and effectively reduces the winding temperature. The heat dissipation effect is good, and the normal operation of the motor is ensured.
2)本实用新型的其它优点在实施例部分展开详细描述。2) The other advantages of the utility model are described in detail in the embodiment section.
附图说明：Description of the drawings:
图1是本实用新型的立体图；Figure 1 is a perspective view of the utility model;
图2是本实用新型的局部结构分解图；Figure 2 is an exploded view of the partial structure of the utility model;
图3是本实用新型的另一角度局部结构分解图；Figure 3 is a partial structural exploded view of the utility model from another angle;
图4是本实用新型的结构示意图；Figure 4 is a schematic diagram of the structure of the utility model;
图5是本实用新型的另一角度结构示意图；Figure 5 is a schematic structural view of the utility model from another angle;
图6是本实用新型的俯视图；Figure 6 is a top view of the utility model;
图7是图6中A-A的剖视图；Figure 7 is a cross-sectional view of A-A in Figure 6;
图8是图7中B的局部放大图；Fig. 8 is a partial enlarged view of B in Fig. 7;
图9是图7中C的局部放大图；Figure 9 is a partial enlarged view of C in Figure 7;
图10是本实用新型中端盖的结构示意图。Figure 10 is a schematic diagram of the structure of the end cap of the present invention.
图11是本实用新型使用中的气体流动示意图。Figure 11 is a schematic diagram of the gas flow in use of the present utility model.
具体实施方式：Detailed ways:
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。Hereinafter, the present utility model will be further described in detail through specific embodiments in conjunction with the accompanying drawings.
如图1至图11所示，本实施例提供的是一种外转子电机，包括转轴1、定子组件2、外转子3和套筒座4，定子组件2包括定子铁芯21、端部绝缘22和线圈绕组23，套筒座4包括底板41和从底板41中间往上凸起的套筒42，外转子3包括机壳套筒31和安装在机壳套筒31内壁面上的若干永磁体32，机壳套筒31内设有空腔310，转轴1一端从套筒42伸出与机壳套筒31安装连接在一起，定子组件2嵌套安装在套筒42的外面，外转子3套设于定子组件2外面，机壳套筒31的开口处往外伸出有法兰33，在法兰33底部安装有离心风扇5,离心风扇5与底板41之间设有出风口400，其特征在于:机壳套筒31顶部上设有迷宫式进风口300，迷宫式进风口300、空腔310和出风口400是连通的，空气从迷宫式进风口300进入到电机内部后再从出风口400排出，电机运行时，外转子3转动带动离心风扇5一起旋转，离心风扇5将电机内部的空气气体抽出，使气流在电机内部定向流通散热，。As shown in Figures 1 to 11, this embodiment provides an outer rotor motor, which includes a rotating shaft 1, a stator assembly 2, an outer rotor 3, and a sleeve base 4. The stator assembly 2 includes a stator core 21 and end insulation. 22 and the coil winding 23. The sleeve base 4 includes a bottom plate 41 and a sleeve 42 protruding upward from the middle of the bottom plate 41. The outer rotor 3 includes a casing sleeve 31 and a number of permanent walls mounted on the inner wall of the casing sleeve 31. The magnet 32 is provided with a cavity 310 in the casing sleeve 31. One end of the rotating shaft 1 extends from the sleeve 42 and is installed and connected to the casing sleeve 31. The stator assembly 2 is nested and installed on the outside of the sleeve 42, and the outer rotor 3 is sleeved outside the stator assembly 2, a flange 33 extends outward from the opening of the casing sleeve 31, a centrifugal fan 5 is installed at the bottom of the flange 33, and an air outlet 400 is provided between the centrifugal fan 5 and the bottom plate 41, It is characterized in that: a labyrinth air inlet 300 is provided on the top of the casing sleeve 31, the labyrinth air inlet 300, the cavity 310 and the air outlet 400 are connected, and the air enters the motor from the labyrinth air inlet 300 and then from there The air outlet 400 is discharged. When the motor is running, the outer rotor 3 rotates to drive the centrifugal fan 5 to rotate together. The centrifugal fan 5 draws out the air and gas inside the motor, so that the airflow circulates and dissipates heat in the direction of the motor.
迷宫式进风口300包括端盖301和挡板罩体302，端盖301安装在机壳套筒31的顶部，挡板罩体302安装在端盖301的顶面3014上，端盖301对应线圈绕组23的上方处设有若干进风槽口3011，进风槽口3011的外侧和内侧分别设有第一挡板3012和第二挡板3013，端盖301的顶面3014上设有第三挡板3015，第三挡板3015位于第一挡板3012的***且与第一挡板3012之间形成第一凹槽 3016，挡板罩体302包括第一环形板3021和第二环形板3022，第一环形板3021与第二环形板3022的顶端设有连接板3023连接，挡板罩体302安装在端盖301上时第二挡板3013与第二环形板3022套装在一起，第一环形板3021***到第一凹槽3016里形成迷宫式进风通道3017，迷宫式进风通道3017与进风槽口3011连通，连接板3023将进风槽口3011遮盖，有效阻止进风口处的雨水进入。The labyrinth air inlet 300 includes an end cover 301 and a baffle cover 302. The end cover 301 is installed on the top of the casing sleeve 31. The baffle cover 302 is installed on the top surface 3014 of the end cover 301. The end cover 301 corresponds to the coil A number of air inlet slots 3011 are provided above the winding 23. A first baffle 3012 and a second baffle 3013 are provided on the outside and inside of the air inlet slot 3011, and a third baffle 3014 is provided on the top surface 3014 of the end cover 301. The baffle 3015, the third baffle 3015 is located at the periphery of the first baffle 3012 and forms a first groove 3016 between the first baffle 3012 and the first baffle 3012. The baffle cover 302 includes a first annular plate 3021 and a second annular plate 3022 , The first ring plate 3021 and the second ring plate 3022 are provided with a connecting plate 3023 at the top end. When the baffle cover 302 is installed on the end cover 301, the second baffle 3013 and the second ring plate 3022 are sleeved together. The annular plate 3021 is inserted into the first groove 3016 to form a labyrinth-type air inlet channel 3017. The labyrinth-type air inlet channel 3017 communicates with the air inlet slot 3011. The connecting plate 3023 covers the air inlet slot 3011, effectively preventing the air inlet Rainwater enters.
第三挡板3015的高度H1低于第一挡板3012的高度H2，有效防止雨水进入电机内部，防水效果好。The height H1 of the third baffle 3015 is lower than the height H2 of the first baffle 3012, which effectively prevents rainwater from entering the inside of the motor and has a good waterproof effect.
挡板罩体302通过螺钉锁紧在端盖301上，第二环形板3022的底端往内伸出一安装板3024,挡板罩体302的安装板3024上设有若干第一安装孔3025，端盖301上设有与安装板3024的若干第一安装孔3025对应的若干个第二安装孔3018，将螺钉旋进第一安装孔和第二安装孔，使挡板罩体302锁紧在端盖301上，结构简单，安装简单。The baffle cover 302 is locked on the end cover 301 by screws. The bottom end of the second annular plate 3022 extends inward with a mounting plate 3024. The mounting plate 3024 of the baffle cover 302 is provided with a number of first mounting holes 3025. , The end cover 301 is provided with a number of second mounting holes 3018 corresponding to the number of first mounting holes 3025 of the mounting plate 3024. Screw the screws into the first and second mounting holes to lock the baffle cover 302 On the end cover 301, the structure is simple and the installation is simple.
端盖301的底面3019上设有若干第一扇叶加强筋6，可以将外部进入的空气对绕组直接冷却，也可以加速空气朝另一端流动，散热效果好。The bottom surface 3019 of the end cover 301 is provided with a number of first fan blade reinforcement ribs 6, which can directly cool the windings by the air entering from the outside, and can also accelerate the air flow to the other end, and the heat dissipation effect is good.
所述的离心风扇5包括位于底部的离心风扇外圈51，离心风扇外圈51往上周向设置有若干风叶52，离心风扇外圈51的内侧设置离心风扇内圈53，离心风扇内圈53的直径小于离心风扇外圈51的直径，离心风扇外圈51内侧通过若干连接点与离心风扇内圈53连接，离心风扇内圈53与离心风扇外圈51之间的间隙55形成入风口，在离心风扇5下方的位置的底板41上设有若干条凸起散热翅片411，相邻的两个散热翅片411之间形成风道412，离心风扇外圈51遮挡住风道412的顶部，离心风扇外圈51与法兰33、若干风叶52组成一离心的风扇，当外转子3转动时带动离心风扇5转动，气流径向进入风道412，然后流入到间隙55，在若干风叶52的作用下，径向往外甩出，提高电机内部热量排出，起到有效的散热效果。The centrifugal fan 5 includes a centrifugal fan outer ring 51 at the bottom. The centrifugal fan outer ring 51 is provided with a plurality of wind blades 52 in the upper circumferential direction. A centrifugal fan inner ring 53 is arranged inside the centrifugal fan outer ring 51. The diameter of the centrifugal fan 53 is smaller than the diameter of the centrifugal fan outer ring 51. The inner side of the centrifugal fan outer ring 51 is connected to the centrifugal fan inner ring 53 through several connection points. The gap 55 between the centrifugal fan inner ring 53 and the centrifugal fan outer ring 51 forms an air inlet, A number of raised radiating fins 411 are provided on the bottom plate 41 at a position below the centrifugal fan 5, an air duct 412 is formed between two adjacent radiating fins 411, and the outer ring 51 of the centrifugal fan covers the top of the air duct 412 , The centrifugal fan outer ring 51, flange 33, and several blades 52 form a centrifugal fan. When the outer rotor 3 rotates, the centrifugal fan 5 is driven to rotate. The airflow enters the air duct 412 radially, and then flows into the gap 55. Under the action of the leaf 52, it is thrown out radially, which improves the heat dissipation from the inside of the motor and has an effective heat dissipation effect.
离心风扇内圈53的内侧壁设置若干叶片59，提高电机内部气流流动性，增加电机内部散热效果。A number of blades 59 are arranged on the inner side wall of the inner ring 53 of the centrifugal fan to improve the air flow inside the motor and increase the heat dissipation effect inside the motor.
离心风扇内圈53包括顶板531和从顶板531往下凸出第一挡圈532和第二挡圈533，第一挡圈532和第二挡圈533之间形成第二凹槽534，底板41往上凸起有内挡水圈43和外挡水圈44，内挡水圈43和外挡水圈44位于套筒42的***，内挡水圈43和外挡水圈44之间形成储水槽45，内挡水圈43的顶部嵌入到第二凹槽534里面，第二挡圈533***到储水槽45里面，使离心风扇与底板之间形成一迷宫式出风口400，防水性好，保证产品的性能。The centrifugal fan inner ring 53 includes a top plate 531 and a first retaining ring 532 and a second retaining ring 533 protruding downward from the top plate 531. A second groove 534 is formed between the first retaining ring 532 and the second retaining ring 533, and the bottom plate 41 The inner water retaining ring 43 and the outer water retaining ring 44 are protruding upward. The inner water retaining ring 43 and the outer water retaining ring 44 are located on the periphery of the sleeve 42. A storage is formed between the inner water retaining ring 43 and the outer water retaining ring 44. In the water tank 45, the top of the inner water retaining ring 43 is embedded in the second groove 534, and the second retaining ring 533 is inserted into the water storage tank 45, so that a labyrinth air outlet 400 is formed between the centrifugal fan and the bottom plate, which has good waterproofness. Ensure product performance.
底板41的端面上设有若干第二扇叶加强筋46，提高电机内部散热效果。A number of second fan blade reinforcement ribs 46 are provided on the end surface of the bottom plate 41 to improve the heat dissipation effect inside the motor.
外挡水圈44上设有若干缺口441，缺口441的外侧设置遮挡板47，避免外部的水滴通过缺口441进入储水槽45。A plurality of notches 441 are provided on the outer water retaining ring 44, and a shielding baffle 47 is provided on the outer side of the notches 441 to prevent external water droplets from entering the water storage tank 45 through the notches 441.
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。The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the utility model are all The equivalent replacement methods are all included in the protection scope of the present invention.

Claims (10)

  1. 一种外转子电机，包括转轴(1)、定子组件(2)、外转子(3)和套筒座(4)，定子组件(2)包括定子铁芯(21)、端部绝缘(22)和线圈绕组(23)，套筒座(4)包括底板(41)和从底板(41)中间往上凸起的套筒(42)，外转子(3)包括机壳套筒(31)和安装在机壳套筒(31)内壁面上的若干永磁体(32)，机壳套筒(31)内设有空腔(310)，转轴(1)一端从套筒(42)伸出与机壳套筒(31)安装连接在一起，定子组件(2)嵌套安装在套筒(42)的外面，外转子(3)套设于定子组件(2)外面，机壳套筒(31)的开口处往外伸出有法兰(33)，在法兰(33)底部安装有离心风扇(5),离心风扇(5)与底板(41)之间设有出风口(400)，其特征在于:机壳套筒(31)顶部上设有迷宫式进风口(300)，迷宫式进风口(300)、空腔(310)和出风口(400)是连通的，空气从迷宫式进风口(300)进入到电机内部后再从出风口(400)排出，电机运行时，外转子(3)转动带动离心风扇(5)一起旋转，离心风扇(5)将电机内部的空气气体抽出，使气流在电机内部定向流通散热。An outer rotor motor, comprising a rotating shaft (1), a stator assembly (2), an outer rotor (3) and a sleeve seat (4). The stator assembly (2) includes a stator core (21) and end insulation (22) And the coil winding (23), the sleeve seat (4) includes a bottom plate (41) and a sleeve (42) protruding upward from the middle of the bottom plate (41), and the outer rotor (3) includes a casing sleeve (31) and A number of permanent magnets (32) are installed on the inner wall of the casing sleeve (31). The casing sleeve (31) is provided with a cavity (310). One end of the rotating shaft (1) extends from the sleeve (42) and The casing sleeves (31) are installed and connected together, the stator assembly (2) is nested and installed on the outside of the sleeve (42), the outer rotor (3) is sleeved outside the stator assembly (2), and the casing sleeve (31) A flange (33) extends outward from the opening of the flange (33), a centrifugal fan (5) is installed at the bottom of the flange (33), and an air outlet (400) is provided between the centrifugal fan (5) and the bottom plate (41). The feature is: a labyrinth air inlet (300) is provided on the top of the casing sleeve (31), the labyrinth air inlet (300), the cavity (310) and the air outlet (400) are connected, and the air enters from the labyrinth The air outlet (300) enters the motor and then discharges from the air outlet (400). When the motor is running, the outer rotor (3) rotates to drive the centrifugal fan (5) to rotate together, and the centrifugal fan (5) extracts the air and gas inside the motor. Make the air flow directionally circulate and dissipate heat inside the motor.
  2. 根据权利要求1所述的一种外转子电机，其特征在于：迷宫式进风口(300)包括端盖(301)和挡板罩体(302)，端盖(301)安装在机壳套筒(31)的顶部，挡板罩体(302)安装在端盖(301)的顶面(3014)上，端盖(301)对应线圈绕组(23)的上方处设有若干进风槽口(3011)，进风槽口(3011)的外侧和内侧分别设有第一挡板(3012)和第二挡板(3013)，端盖(301)的顶面(3014)上设有第三挡板(3015)，第三挡板(3015)位于第一挡板(3012)的***且与第一挡板(3012)之间形成第一凹槽(3016)，挡板罩体(302)包括第一环形板(3021)和第二环形板(3022)，第一环形板(3021)与第二环形板(3022)的顶端设有连接板(3023)连接，挡板罩体(302)安装在端盖(301)上时第二挡板(3013)与第二环形板(3022)套装在一起，第一环形板(3021)***到第一凹槽(3016)里形成迷宫式进风通道(3017)，迷宫式进风通道(3017)与进风槽口(3011)连通，连接板(3023)将进风槽口(3011)遮盖。An external rotor motor according to claim 1, characterized in that: the labyrinth air inlet (300) includes an end cover (301) and a baffle cover (302), and the end cover (301) is mounted on the casing sleeve On the top of (31), the baffle cover (302) is installed on the top surface (3014) of the end cover (301), and the end cover (301) is provided with several air inlet slots ( 3011), a first baffle (3012) and a second baffle (3013) are provided on the outside and inside of the air inlet slot (3011), and a third baffle (3014) is provided on the top surface (3014) of the end cover (301) The plate (3015), the third baffle (3015) is located at the periphery of the first baffle (3012) and forms a first groove (3016) between the first baffle (3012), and the baffle cover (302) includes The first annular plate (3021) and the second annular plate (3022), the top of the first annular plate (3021) and the second annular plate (3022) are connected with a connecting plate (3023), and the baffle cover (302) is installed When on the end cover (301), the second baffle (3013) and the second annular plate (3022) are fitted together, and the first annular plate (3021) is inserted into the first groove (3016) to form a labyrinth air inlet channel (3017), the labyrinth-type air inlet channel (3017) communicates with the air inlet slot (3011), and the connecting plate (3023) covers the air inlet slot (3011).
  3. 根据权利要求2所述的一种外转子电机，其特征在于：第三挡板(3015)的高度H1低于第一挡板(3012)的高度H2。The external rotor motor according to claim 2, wherein the height H1 of the third baffle (3015) is lower than the height H2 of the first baffle (3012).
  4. 根据权利要求2或3所述的一种外转子电机，其特征在于：挡板罩体(302)通过螺钉锁紧在端盖(301)上，第二环形板(3022)的底端往内伸出一安装板(3024),挡板罩体(302)的安装板(3024)上设有若干第一安装孔(3025)，端盖(301)上设有与安装板(3024)的若干第一安装孔(3025)对应的若干个第二安装孔(3018)，将螺钉旋进第一安装孔(3025)和第二安装孔(3018)，使挡板罩体(302)锁紧在端盖(301)上。The external rotor motor according to claim 2 or 3, characterized in that the baffle cover (302) is locked on the end cover (301) by screws, and the bottom end of the second annular plate (3022) is inwardly A mounting plate (3024) is extended. The mounting plate (3024) of the baffle cover (302) is provided with a number of first mounting holes (3025), and the end cover (301) is provided with a number of mounting plates (3024). Several second mounting holes (3018) corresponding to the first mounting hole (3025), screw the screws into the first mounting hole (3025) and the second mounting hole (3018), so that the baffle cover (302) is locked in On the end cap (301).
  5. 根据权利要求4所述的一种外转子电机，其特征在于：端盖(301)的底面(3019)上设有若干第一扇叶加强筋(6)。An external rotor motor according to claim 4, characterized in that a number of first fan blade reinforcement ribs (6) are provided on the bottom surface (3019) of the end cover (301).
  6. 根据权利要求4所述的一种外转子电机，其特征在于：所述的离心风扇(5)包括位于底部的离心风扇外圈(51)，离心风扇外圈(51)往上周向设置有若干风叶(52)，离心风扇外圈(51)的内侧设置离心风扇内圈(53)，离心风扇内圈(53)的直径小于离心风扇外圈(51)的直径，离心风扇外圈(51)内侧通过若干连接点与离心风扇内圈(53)连接，离心风扇内圈(53)与离心风扇外圈(51)之间的间隙(55)形成入风口，在离心风扇(5)下方的位置的底板(41)上设有若干条凸起散热翅片(411)，相邻的两个散热翅片(411)之间形成风道(412)，离心风扇外圈(51)遮挡住风道(412)的顶部，离心风扇外圈(51)与法兰(33)、若干风叶(52)组成一离心的风扇，当外转子(3)转动时带动离心风扇(5)转动，气流径向进入风道(412)，然后流入到间隙(55)，在若干风叶(52)的作用下，径向往外甩出。An outer rotor motor according to claim 4, characterized in that: the centrifugal fan (5) includes a centrifugal fan outer ring (51) located at the bottom, and the centrifugal fan outer ring (51) is provided with A number of fan blades (52), a centrifugal fan inner ring (53) is arranged inside the centrifugal fan outer ring (51), the diameter of the centrifugal fan inner ring (53) is smaller than the diameter of the centrifugal fan outer ring (51), the centrifugal fan outer ring ( 51) The inside is connected to the centrifugal fan inner ring (53) through several connection points. The gap (55) between the centrifugal fan inner ring (53) and the centrifugal fan outer ring (51) forms an air inlet, which is below the centrifugal fan (5) A number of raised radiating fins (411) are provided on the bottom plate (41) at the position of the At the top of the air duct (412), the outer ring (51) of the centrifugal fan, the flange (33), and several blades (52) form a centrifugal fan. When the outer rotor (3) rotates, the centrifugal fan (5) is driven to rotate. The airflow enters the air duct (412) radially, then flows into the gap (55), and is flung out radially outward under the action of a number of wind blades (52).
  7. 根据权利要求6所述的一种外转子电机，其特征在于：离心风扇内圈(53)的内侧壁设置若干叶片(59)。An external rotor motor according to claim 6, characterized in that a plurality of blades (59) are provided on the inner side wall of the inner ring (53) of the centrifugal fan.
  8. 根据权利要求7所述的一种外转子电机，其特征在于：离心风扇内圈(53)包括顶板(531)和从顶板(531)往下凸出第一挡圈(532)和第二挡圈(533)，第一挡圈(532)和第二挡圈(533)之间形成第二凹槽(534)，底板(41)往上凸起有内挡水圈(43)和外挡水圈(44)，内挡水圈(43)和外挡水圈(44)位于套筒(42)的***， 内挡水圈(43)和外挡水圈(44)之间形成储水槽(45)，内挡水圈(43)的顶部嵌入到第二凹槽(534)里面，第二挡圈(533)***到储水槽(45)里面，使离心风扇(5)与底板(41)之间形成一迷宫式出风口(400)。The outer rotor motor according to claim 7, characterized in that: the centrifugal fan inner ring (53) includes a top plate (531) and a first retaining ring (532) and a second retaining ring protruding downward from the top plate (531) Ring (533), a second groove (534) is formed between the first retaining ring (532) and the second retaining ring (533), the bottom plate (41) protrudes upwards with an inner water retaining ring (43) and an outer retaining ring (43) The water ring (44), the inner water ring (43) and the outer water ring (44) are located on the periphery of the sleeve (42), and a water storage tank is formed between the inner water ring (43) and the outer water ring (44) (45), the top of the inner water retaining ring (43) is inserted into the second groove (534), and the second retaining ring (533) is inserted into the water storage tank (45) to make the centrifugal fan (5) and the bottom plate (41) A labyrinth-type air outlet (400) is formed between ).
  9. 根据权利要求8所述的一种外转子电机，其特征在于：底板(41)的端面上设有若干第二扇叶加强筋(46)。An external rotor motor according to claim 8, characterized in that a plurality of second fan blade reinforcement ribs (46) are provided on the end surface of the bottom plate (41).
  10. 根据权利要求9所述的一种外转子电机，其特征在于：外挡水圈(44)上设有若干缺口(441)，缺口(441)的外侧设置遮挡板(47)。An external rotor motor according to claim 9, characterized in that a plurality of notches (441) are provided on the outer water retaining ring (44), and a shielding baffle (47) is provided on the outside of the notches (441).
PCT/CN2020/112436 2020-03-28 2020-08-31 External rotor motor WO2021196516A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020420649.X 2020-03-28
CN202020420649.XU CN211908572U (en) 2020-03-28 2020-03-28 External rotor motor

Publications (1)

Publication Number Publication Date
WO2021196516A1 true WO2021196516A1 (en) 2021-10-07

Family

ID=73274205

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/112436 WO2021196516A1 (en) 2020-03-28 2020-08-31 External rotor motor

Country Status (2)

Country Link
CN (1) CN211908572U (en)
WO (1) WO2021196516A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114257043A (en) * 2021-12-20 2022-03-29 张家港华捷电子有限公司 High-strength side air inlet motor fan blade applied to outer rotor motor of snow sweeper
CN114337057A (en) * 2022-01-20 2022-04-12 上海大速科技有限公司 Low-voltage high-power motor
CN114679011A (en) * 2022-03-17 2022-06-28 中车永济电机有限公司 Light totally-enclosed motor rotor heat radiation structure
CN115833479A (en) * 2022-11-16 2023-03-21 南昌三瑞智能科技有限公司 Brushless motor heat abstractor brushless motor
CN116760235A (en) * 2023-06-28 2023-09-15 京马电机有限公司 Temperature control protection outer rotor motor for desk type smoke machine and protection method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114094742A (en) * 2021-11-24 2022-02-25 卧龙电气驱动集团股份有限公司 External rotor motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1722576A (en) * 2004-07-13 2006-01-18 阿斯莫有限公司 Electric fan for vehicle use
CN202103534U (en) * 2011-06-09 2012-01-04 上海鑫力奥闻电动机有限公司 Integral ventilation structure of motor
CN102971541A (en) * 2010-05-07 2013-03-13 罗伯特·博世有限公司 Motor ring and splash shield arrangement for a fan assembly
CN209233661U (en) * 2018-12-17 2019-08-09 中山大洋电机股份有限公司 A kind of external rotor electric machine
US20200014281A1 (en) * 2018-07-04 2020-01-09 Doosan Heavy Industries & Construction Co., Ltd. Sealing structure for peripheral area of generator fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1722576A (en) * 2004-07-13 2006-01-18 阿斯莫有限公司 Electric fan for vehicle use
CN102971541A (en) * 2010-05-07 2013-03-13 罗伯特·博世有限公司 Motor ring and splash shield arrangement for a fan assembly
CN202103534U (en) * 2011-06-09 2012-01-04 上海鑫力奥闻电动机有限公司 Integral ventilation structure of motor
US20200014281A1 (en) * 2018-07-04 2020-01-09 Doosan Heavy Industries & Construction Co., Ltd. Sealing structure for peripheral area of generator fan
CN209233661U (en) * 2018-12-17 2019-08-09 中山大洋电机股份有限公司 A kind of external rotor electric machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114257043A (en) * 2021-12-20 2022-03-29 张家港华捷电子有限公司 High-strength side air inlet motor fan blade applied to outer rotor motor of snow sweeper
CN114257043B (en) * 2021-12-20 2024-06-11 张家港华捷电子有限公司 High-strength side-entry wind turbine blade applied to outer rotor motor of snowplow
CN114337057A (en) * 2022-01-20 2022-04-12 上海大速科技有限公司 Low-voltage high-power motor
CN114679011A (en) * 2022-03-17 2022-06-28 中车永济电机有限公司 Light totally-enclosed motor rotor heat radiation structure
CN114679011B (en) * 2022-03-17 2023-12-19 中车永济电机有限公司 Light-weight totally-enclosed motor rotor heat radiation structure
CN115833479A (en) * 2022-11-16 2023-03-21 南昌三瑞智能科技有限公司 Brushless motor heat abstractor brushless motor
CN116760235A (en) * 2023-06-28 2023-09-15 京马电机有限公司 Temperature control protection outer rotor motor for desk type smoke machine and protection method
CN116760235B (en) * 2023-06-28 2024-05-03 京马电机有限公司 Temperature control protection outer rotor motor for desk type smoke machine and protection method

Also Published As

Publication number Publication date
CN211908572U (en) 2020-11-10

Similar Documents

Publication Publication Date Title
WO2021196516A1 (en) External rotor motor
WO2018018905A1 (en) External rotor motor
CA2210236C (en) Ceiling fan motors
RU2506682C2 (en) Annular generator
CN213402646U (en) External rotor motor system
CN201369663Y (en) Disk-type brushless motor
CN204615543U (en) A kind of motor with weather shield
CN209233661U (en) A kind of external rotor electric machine
US2074067A (en) Ventilated splashproof motor housing
CN110545012A (en) Totally-enclosed natural cooling traction motor
CN216774407U (en) External rotor motor with novel heat radiation structure
JP2008029150A (en) Fully closed motor
CN116231932A (en) Totally-enclosed self-ventilation type motor cooling structure
CN209072171U (en) A kind of motor
KR102147730B1 (en) Blowers with BMC motor that increase ventilation volume and minimize vibration noise
CN109831053A (en) Radiator structure, motor and the centrifugal blower of outer rotor motor driven device
CN113193688A (en) IP55 industrial ceiling fan motor with external cooling structure
CN111431344A (en) Inorganic shell air-cooled permanent magnet motor
JP2011015479A (en) Rotating electric machine
JP5430211B2 (en) Drive motor
TWI674737B (en) Motor and ceiling fan including the same
CN206099653U (en) Induced draft from fanning cold type open motor
CN211958887U (en) Outer rotor permanent magnet motor
WO2023071015A1 (en) External rotor motor
CN103825405A (en) Cooling structure of double-rotor motor

Legal Events

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

Ref document number: 20929591

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20929591

Country of ref document: EP

Kind code of ref document: A1