[go: up one dir, main page]

WO2013060070A1 - Moteur à courant continu sans balai - Google Patents

Moteur à courant continu sans balai Download PDF

Info

Publication number
WO2013060070A1
WO2013060070A1 PCT/CN2011/084111 CN2011084111W WO2013060070A1 WO 2013060070 A1 WO2013060070 A1 WO 2013060070A1 CN 2011084111 W CN2011084111 W CN 2011084111W WO 2013060070 A1 WO2013060070 A1 WO 2013060070A1
Authority
WO
WIPO (PCT)
Prior art keywords
end cover
rear end
brushless
rotor
motor shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/084111
Other languages
English (en)
Chinese (zh)
Inventor
郑胜巨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN WANRUI MOTOR Co Ltd
Original Assignee
DONGGUAN WANRUI MOTOR Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DONGGUAN WANRUI MOTOR Co Ltd filed Critical DONGGUAN WANRUI MOTOR Co Ltd
Publication of WO2013060070A1 publication Critical patent/WO2013060070A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Definitions

  • the present invention relates to the field of motor technology, and in particular to a brushless DC motor.
  • Brushless external drive motor is generally used in industries where both ends are fixed and suspended in the middle, such as the fan industry.
  • For floor use add a U-shaped bracket to the shaft ends of the stator.
  • this U-shaped bracket method is troublesome when the new machine is installed and the motor is unloaded, and the motor may be inadvertently damaged during disassembly, so the motor is used in a narrow range.
  • the above three DC motors have the same fatal disadvantages: no matter whether the magnet is mounted on the rotor or the stator, the N and S plates must be adjacent to each other in the same direction, and the adjacent two pieces There must be a gap in the middle of the magnetic steel.
  • An object of the present invention is to provide a brushless DC motor which overcomes the above-mentioned deficiencies of the prior art, which has smooth rotation, low internal vibration, low noise decibel, and no cut-frequency, whistle.
  • a brushless DC motor includes a casing, a base, a fan, a front end cover, a rear end cover, a motor shaft, a rotor, a permanent magnet, and a stator, and the outer casing is hollow
  • the cylindrical structure has a base in the middle of the lower side of the outer casing, a front end cover of the front side of the outer casing, and a rear end cover of the rear side of the outer casing;
  • the motor shaft is sleeved in the outer casing, and the two ends of the motor shaft are respectively sleeved through the shaft 7
  • the inner side of the front end cover is provided with a hollow extension portion, and the hollow extension portion is sleeved outside the motor shaft, hollow
  • the outer wall of the extension portion is
  • the two stators are connected to the motor shaft.
  • the inner wall of the rotor and the two stators are respectively provided with permanent magnets, and the permanent magnets opposite to the two stators are arranged offset.
  • the rotor mainly comprises a rotor ring and a fixed plate.
  • the rotor ring has an annular structure, and the inner part of the inner side of the rotor ring is welded and fixed.
  • the two sets of permanent magnets are respectively attached to the inner wall of the rotor ring, and the two sets of permanent magnets are respectively disposed on both sides of the fixed plate.
  • the permanent magnets on the same side of the fixed plate are arranged in such a way that the N poles and the S poles of the adjacent permanent magnets alternate in the same direction. Two pieces of the center of the permanent magnet in the width direction of the left side of the fixing plate are adjacent to the right side of the fixing plate
  • the fixing plate is provided with a venting hole, and the venting hole is opposite to the permanent magnet on one side of the fixing plate and larger than the area of the permanent magnet.
  • the fixing plate is provided with a sleeve hole at the axial center, and the hole is sleeved on the outer wall of the connecting sleeve.
  • the connecting sleeve and the fixing plate are locked by screws.
  • a sleeve hole is arranged in a middle portion of the connecting sleeve, the sleeve hole is sleeved to the motor shaft, and is fixed by a pin, and the extension of the connection sleeve is provided with a notch.
  • the outer edge of the front end cover and the rear end cover are oppositely provided with the ear, and the ear of the front end cover and the rear end cover are connected by a connecting rod. Ventilation holes are respectively disposed on the front end cover and the rear end cover.
  • the bearing of the front end cover is clamped by a snap spring, and the bearing of the rear end cover is clamped by a snap spring.
  • the bearing of the front end cover is fixed by a bearing end cover, and the bearing of the rear end cover is fixed by a bearing end cover.
  • Products have advantages compared with products in the same industry, such as: indoor electrical products, medical equipment, fitness equipment, precision machine tools, indoor automation equipment and so on.
  • the permanent magnets on the left and the right are mounted on the inner wall of the rotor in a dislocation manner, and the center slot of the permanent magnet and the middle gap of the two permanent magnets adjacent to the other side are just in line with the axial direction thereof.
  • the shortcomings of the group of permanent magnets not only solve the problem of unsmooth rotation, whistling, but also reduce the cost.
  • the brushless DC motor of the invention solves the limitation of the use of the above-mentioned motor, and is used in any range and any facilities, and also compensates for the brushless motor and the drive shaft brushless motor because the rotor drives the shaft transmission.
  • FIG. 1 is a perspective view of a brushless DC motor according to the present invention.
  • Figure 2 is a front elevational view of the brushless DC motor of the present invention.
  • Figure 3 is a longitudinal cross-sectional view of a brushless DC motor according to the present invention.
  • 4 is a cross-sectional view showing a rotor of a brushless DC motor according to the present invention.
  • Figure 5 is an AA view of Figure 4.
  • Figure 6 is a BB view of Figure 4.
  • Fig. 7 is a left side view of the rotor of the brushless DC motor of the present invention.
  • Figure 8 is a schematic view of the motor shaft of the brushless DC motor according to the present invention, wherein the middle section is partially cut away.
  • Figure 9 is a left side elevational view of the motor shaft of Figure 8.
  • Figure 10 is a longitudinal cross-sectional view of the rear end cover of the brushless DC motor of the present invention.
  • the brushless DC motor includes a casing 1, a base 2, a fan 3, a front end cover 4, a rear end cover 5, a motor shaft 10, a rotor 11, and a permanent magnet.
  • the stator 13, the outer casing 1 is a hollow cylindrical structure
  • the front side of the outer casing 1 is ferrule front end cover 4, after the rear side of the outer casing 1 is ferrule
  • the end cover 5, the front end cover 4 and the rear end cover 5 are provided with the connecting ears 7 on the outer edge thereof, and the connecting ears 7 of the front end cover 4 and the rear end cover 5 are connected by the connecting rod 6, and the front end cover 4 is connected through the connecting rod 6.
  • the rear end cover 5 is locked on both sides of the outer casing 1 and is conveniently used for landing.
  • the front end cover 4 and the rear end cover 5 are respectively provided with ventilation holes 8 for facilitating heat dissipation; the lower portion of the outer casing 1 is provided with a supporting function.
  • the base 2 is sleeved with the motor shaft 10, and the two ends of the motor shaft 10 are respectively sleeved on the axis of the front end cover 4 and the rear end cover 5 through the shaft 7 17, and the bearing 17 of the front end cover 4 passes the card.
  • the spring 16 is fastened, and the bearing 17 of the rear end cover 5 is fastened by a retaining ring 16 .
  • the outer end of the rear end cover 5 is provided with a fan 3 sleeved on the motor shaft 10
  • the inner end of the front end cover 4 is provided with a hollow extension.
  • the hollow extension is sleeved outside the motor shaft 10, and the outer wall of the hollow extension portion is sleeved with a fixed portion 13.
  • the inner side of the rear end cover 5 is provided with a hollow extension portion, and the hollow extension portion is sleeved outside the motor shaft 10, and the outer wall of the hollow extension portion is sleeved.
  • the other stator 13 is provided with a rotor 11 outside the two stators 13.
  • the rotor 11 is connected from the two stators 13 to the motor shaft 10, and the motor is driven by the rotor 11. 10 rotates the rotor 13 and two stators are provided with opposing permanent magnets 12, the offset 12 is provided with two stator 13 are opposed to the permanent magnets 11 on the inner wall.
  • the brushless DC motor further includes a DC electronically controlled driver, and the DC electronically controlled driver is located outside the casing 1 or is locked to the base 2 by an extension cable. As shown in FIG.
  • the rotor 11 mainly includes a rotor ring 11-1, a fixed plate 11-2, a rotor ring 11-1 is an annular structure, and a middle inner portion of the rotor ring 11-1 is welded with a fixing plate 11-2.
  • the two sets of permanent magnets 12 are respectively attached to the inner wall of the rotor ring 11-1, and the two sets of permanent magnets 12 are respectively disposed on two sides of the fixed plate 11-2, and the number of permanent magnets 12 on the same side of the fixed plate 11-2 can be 4. 6, 8, 12, the more the number of permanent magnets 12, the greater the torque of the motor, which can be determined according to the power used.
  • the arrangement of the permanent magnets 12 on the same side of the fixed plate 11-2 is as follows: N of the adjacent permanent magnets 12 The pole and the S pole alternate in the same direction.
  • the permanent magnet 12 can be made of ferrite which is cheaper in material or neodymium iron boron.
  • the center of the width direction of one permanent magnet 12 on the left side of the fixing plate 11-2 is in the middle of the gap between the two permanent magnets 12 adjacent to the right side of the fixing plate 11-2, that is, each piece on the left side of the fixing plate 11-2.
  • the permanent magnet 12 adjacent to the right side of the fixed plate 11-2 is staggered at a half piece position of the permanent magnet 12, and when the stator 13 of one side is switched with the N and S poles of the permanent magnet 12 opposite to the stator 13 during the rotation, The stator 13 on the other side is just in the middle of the permanent magnet 12 opposite to the stator 13, so that the motor will have a uniform output when the motor rotates, and there will be no problem of unsmooth, kaka, and there is no problem of cut frequency. Because when cutting one side In time, the other side immediately compensates for the torsion during rotation, so there is no cut frequency and whistle, and there is no need to use a flywheel to increase its inertial force.
  • this structure has two sets of permanent magnets 12 and two sets of stators 13, No increase in cost, because: 1 can use ferrite permanent magnet 12 without using commutator, carbon brush; 2 a 1.5 kW motor, designed with a set of permanent magnets 12 and a stator 13
  • the invention is designed to design a power of 1.5 kilowatts into a bilaterally symmetrical structure.
  • the permanent magnets 12 and one stator 13 on each side are half of the raw materials of the permanent magnets 12 and 13 of the original motor, that is, two motors of 0.75 kilowatts. The same guarantee power is 1.5 kW.
  • the fixing plate 11-2 is provided with a venting hole 11-5.
  • the venting hole 11-5 is opposite to the permanent magnet 12 on the side of the fixing plate 11-2 and larger than the area of the permanent magnet 12, so as to facilitate fixing the sides of the plate 11-2. Ventilation and heat dissipation, a sleeve hole 11-3 is defined in the axial center of the fixing plate 11-2, and the sleeve hole 11-3 is sleeved on the outer wall of the connecting sleeve 18, and the connecting sleeve 18 is provided with four threaded holes. 19, the threaded hole 19 in the connecting sleeve 18 is locked on the threaded hole 11-4 of the fixing plate 11-2 by the screw 15, thereby fixing the fixing plate 11-2 and its rotor ring 11-1 to the connecting sleeve 18. .
  • a sleeve hole 20 is defined in the middle of the connecting sleeve 18, and the sleeve hole 20 is sleeved to the motor shaft 10, and is fixed by the pin 14, so that the connecting sleeve 18 rotates synchronously with the motor shaft 10, and the connecting sleeve 18 and the motor shaft are prevented by the pin 14. 10 is relatively rotated in the radial direction, and the extension of the connecting sleeve 18 is provided with a notch 21, and the notch 21 facilitates ventilation on both sides of the fixing plate 11-2, thereby facilitating heat dissipation of the motor.
  • This detailed description is only intended to illustrate the preferred embodiments of the invention, and is not intended to limit the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Cette invention concerne un moteur à courant continu sans balai, comprenant un carter (1) un couvercle d'extrémité avant (4), un couvercle d'extrémité arrière (5) un arbre moteur (10), un rotor (11), des aimants permanents (12) et des stators (13). Ledit arbre moteur (10) est chemisé et monté dans le carter (1). Deux extrémités de la chemise de l'arbre moteur (10) sont reliées aux axes du couvercle d'extrémité avant (4) et du couvercle d'extrémité arrière (5) par l'intermédiaire de paliers (17) respectivement. Le couvercle d'extrémité avant (4) et le couvercle d'extrémité arrière (5) présentent chacun un côté intérieur doté d'une partie d'extension creuse. Les parties d'extension creuses entourent l'arbre moteur (10). Un stator (13) entoure une paroi extérieure de chaque partie d'extension creuse et il est relié à ladite paroi. Le rotor (11) est disposé sur les côtés extérieurs de deux stators (13). The rotor (11) disposé entre les deux stators (13) est relié à l'arbre moteur (10). Les aimants permanents (12) sont disposés sur une paroi intérieure du rotor (11) face aux stators (13). Les aimants permanents (12) disposés face aux deux stators (13) sont disposés de manière étagée.
PCT/CN2011/084111 2011-10-27 2011-12-16 Moteur à courant continu sans balai Ceased WO2013060070A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110331220 2011-10-27
CN201110331220.9 2011-10-27

Publications (1)

Publication Number Publication Date
WO2013060070A1 true WO2013060070A1 (fr) 2013-05-02

Family

ID=48167082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/084111 Ceased WO2013060070A1 (fr) 2011-10-27 2011-12-16 Moteur à courant continu sans balai

Country Status (2)

Country Link
CN (1) CN103095077B (fr)
WO (1) WO2013060070A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6005886B1 (ja) * 2016-03-03 2016-10-12 株式会社エムリンク 円筒コイルを備えた固定子を含む無鉄心回転電気機械およびその冷却方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110350742A (zh) * 2019-07-18 2019-10-18 珠海天晴航空航天科技有限公司 一种无刷电机
WO2023139070A1 (fr) * 2022-01-21 2023-07-27 Liebherr-Components Biberach Gmbh Machine électrique polyphasée

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760503A (en) * 1995-06-21 1998-06-02 Toyoda Koki Kabushiki Kaisha Stepping motor having rotor sections with permanent magnets disposed thereon at a constant pitch
CN1623267A (zh) * 2001-09-25 2005-06-01 美蓓亚株式会社 电动机,尤其是电子整流式直流电动机
CN1655426A (zh) * 2005-01-19 2005-08-17 南京航空航天大学 低转矩脉动双凸极电机
CN102170205A (zh) * 2010-02-25 2011-08-31 陈国宝 无铁芯多定子永磁高效发电机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2181123Y (zh) * 1993-11-30 1994-10-26 钟宗勇 电动机散热装置
CN2703355Y (zh) * 2004-04-06 2005-06-01 王冬雷 多定子、多绕组式无刷直流电机
CN101931292A (zh) * 2010-08-24 2010-12-29 山东山博电机集团有限公司 双定转子直流无刷电动机
CN102148551B (zh) * 2011-03-10 2013-09-11 曾绍洪 二合一共轴直流无刷马达
CN202503413U (zh) * 2011-10-27 2012-10-24 东莞市万瑞电机有限公司 无刷直流电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760503A (en) * 1995-06-21 1998-06-02 Toyoda Koki Kabushiki Kaisha Stepping motor having rotor sections with permanent magnets disposed thereon at a constant pitch
CN1623267A (zh) * 2001-09-25 2005-06-01 美蓓亚株式会社 电动机,尤其是电子整流式直流电动机
CN1655426A (zh) * 2005-01-19 2005-08-17 南京航空航天大学 低转矩脉动双凸极电机
CN102170205A (zh) * 2010-02-25 2011-08-31 陈国宝 无铁芯多定子永磁高效发电机

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6005886B1 (ja) * 2016-03-03 2016-10-12 株式会社エムリンク 円筒コイルを備えた固定子を含む無鉄心回転電気機械およびその冷却方法
WO2017130580A1 (fr) * 2016-03-03 2017-08-03 株式会社エムリンク Machine dynamoélectrique dépourvue de noyau de fer et comprenant un stator à bobine cylindrique et son procédé de refroidissement
CN107431416A (zh) * 2016-03-03 2017-12-01 M-链接株式会社 包括具备圆筒线圈的定子的无铁心旋转电力设备及其冷却方法
CN107431416B (zh) * 2016-03-03 2018-11-09 M-链接株式会社 包括具备圆筒线圈的定子的无铁心旋转电力设备及其冷却方法
US10454328B2 (en) 2016-03-03 2019-10-22 M-Link Co., Ltd. Coreless rotating electrical machine including stator comprising cylindrical coil and cooling method therefor

Also Published As

Publication number Publication date
CN103095077A (zh) 2013-05-08
CN103095077B (zh) 2016-08-24

Similar Documents

Publication Publication Date Title
WO2014036883A1 (fr) Moteur stratifié à aimant permanent
CN110061603B (zh) 一种转子磁路解耦型高速混合励磁同步电机
US20100038985A1 (en) Brushless dc motor, magnetizing method thereof and washing machine having the same
JP2017022971A (ja) 単相モータ、気流発生装置、及び電気装置
EP3076519A1 (fr) Moteur sans balais monophasé
WO2019157701A1 (fr) Moteur à rotor externe
WO2013060070A1 (fr) Moteur à courant continu sans balai
CN110798037A (zh) 一种永磁同步电机
WO2018170726A1 (fr) Moteur sans balais
KR20230140662A (ko) 외전형 모터
KR101390420B1 (ko) 맞춤 핀을 이용한 직각도가 개선된 오픈 타입 모터 장치
JP2000018246A5 (fr)
CN202503413U (zh) 无刷直流电机
CN219779878U (zh) 一种外转子电机
KR20210064473A (ko) 외전형 bldc 모터
KR20190018401A (ko) 다중의 회전자 및 고정자로 구성되는 발전기
CN105305750B (zh) 电机和旋翼动力装置、飞行器
CN210468933U (zh) 一种橡塑机械用转子
CN100370684C (zh) 一种径向无铁心永磁电动机
CN223488006U (zh) 一种单相无刷高速电机
CN106787581B (zh) 一种直流无刷电机
CN205509806U (zh) 模组化发电机
WO2020211494A1 (fr) Rotor extérieur à couple important à faible vitesse de rotation, moteur électrique, et ventilateur de plafond
CN204376618U (zh) 一种一体化风轮的电机
CN222602131U (zh) 一种v型外转子结构、电机组件和发电机装置

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: 11874497

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: 11874497

Country of ref document: EP

Kind code of ref document: A1