WO1999013558A1 - Moteur a courant continu sans balais - Google Patents

Moteur a courant continu sans balais Download PDF

Info

Publication number
WO1999013558A1
WO1999013558A1 PCT/AU1998/000717 AU9800717W WO9913558A1 WO 1999013558 A1 WO1999013558 A1 WO 1999013558A1 AU 9800717 W AU9800717 W AU 9800717W WO 9913558 A1 WO9913558 A1 WO 9913558A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
axis
disc
motor
stator
Prior art date
Application number
PCT/AU1998/000717
Other languages
English (en)
Inventor
Allan John Cassell
Original Assignee
Southern Refrigeration Group Pty. 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 Southern Refrigeration Group Pty. Ltd. filed Critical Southern Refrigeration Group Pty. Ltd.
Priority to AU89646/98A priority Critical patent/AU8964698A/en
Publication of WO1999013558A1 publication Critical patent/WO1999013558A1/fr

Links

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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/132—Submersible electric motors
    • 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
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors

Definitions

  • the present invention relates to an electric motor.
  • the electric motor is one of the many advantageous uses of electricity.
  • One of the many advantageous uses of electricity is one of the many advantageous uses of electricity.
  • a common electric motor is basically comprised of a rotor which is free
  • magnetic poles Some or all of the magnetic poles may be provided with electric
  • DC motor with a switching arrangement, such as a commutator and
  • the propensity for leaks is common due to the wear of the seal and/or the rusting
  • an electric motor including: a rotor capable of rotation about an axis, said rotor including a plurality of
  • stator having a plurality of coils capable of producing magnetic fields
  • the present invention provides an electric motor
  • a rotor capable of rotation about its main axis
  • the rotor comprises a disc, said disc capable of rotation about its main
  • the electric motor is provided with an even number of
  • control means is capable of controlling the direction
  • the electric motor may also be provided with sensors to detect the rotational
  • control means may switch the direction of the
  • present invention can offer improved energy efficiency and reliability when compared
  • Fig. 1 illustrates a cross-sectional side view of a preferred embodiment of a
  • FIG. 2 illustrates a cross-sectional view of the motor depicted in Fig. 1 along
  • Fig. 3 illustrates a cross-sectional view of the motor depicted in Fig. 1 along
  • Fig. 4a illustrates a plan view of a sensor disc used in the present invention to
  • Fig. 4b illustrates a cross-sectional side view of the sensor disc depicted in
  • FIG. 1 a cross-sectional side view of an electric motor 1 which
  • the electric motor 1 is
  • a motor casing 3 in which a rotor having a disc 10 is mounted for
  • the shaft 11 is mounted along a
  • longitudinal axis 12 of the motor and is mounted for rotation within bearings 4 and 5.
  • a load may be connected to the outer end of the shaft 11.
  • the electric motor is shown in combination with an impeller 2 to provide a
  • the agitator is attached to the shaft 11 by a suitable fixing means,
  • the rotor disc 10 is provided with a plurality of permanent
  • magnets 7 are mounted in recesses in the face of the rotor disc 10.
  • magnets 7 may be rare earth magnets.
  • the permanent magnets are preferably
  • At least one magnet to be offset in position in order to aid in the starting of the motor.
  • one magnet may be positioned such that it is closer to one adjacent
  • magnet 7e may be positioned closer to magnet 7f than to magnet 7d.
  • magnets 7 are mounted within the disc 10 such that the north-south axis of each of the
  • magnets is parallel to the longitudinal axis of shaft 1 1.
  • the number and/or size of the magnets may be varied according to the
  • the magnets are mounted such that the direction of
  • permanent magnets 7a, 7c. 7e and 7g have their north poles pointing in one direction
  • poles 7b, 7d, 7f and 7h have their north
  • stator coils 8 which are affixed to the casing 3 by mounting pins or bolts 14.
  • the number of stator coils is equal to the number of permanent magnets.
  • stator coils 8 are spaced near the circumference of the casing at the same radius
  • stator coils 8 capable of being positioned directly adjacent the stator coils 8.
  • the coils 8 may be spaced with equal angularity around the
  • central axis of the stator may be desirable for at least one coil to be offset in position in order to aid in the starting of the motor.
  • one coil may be positioned such that it is closer to one adjacent coil than it is to
  • coil 8b may be positioned closer
  • Each of the coils 8 includes conductive wire wound around a core such that the
  • the coil will induce a magnetic field which has a north-south pole which is parallel to,
  • the shaft 11 Preferably the coils are electrically connected to each other in a
  • Each of the coils is connected to a control circuit (not shown).
  • the control is not shown.
  • circuit is capable of switching the direction of current flow within the coils such that
  • permanent magnets 7 of the rotor may be attracted or repelled by the stator coils 8 at
  • control system is designed to ensure that there is an equal flow of
  • control system ensures the accurate speed of operation of the
  • the motor In many applications it is desirable for the motor to operate at a speed of 1 ,000
  • sensor disc 15 The sensor disc is affixed to the shaft 11 with a suitable fixing means, such as mounting screw 16. Referring to Figs. 4a and 4b, a plurality of small
  • permanent magnets 17 are positioned in a face of the sensor disc.
  • the permanent magnets 17 are positioned in a face of the sensor disc.
  • the permanent magnets 17 are configured
  • magnets 7 are arranged in the rotor 10.
  • the sensor is preferably
  • the Hall-effect sensor creates an electronic impulse when a magnet 17
  • the magnet sensor is connected to the control circuit so
  • control circuit is capable of determining the rotational position of the rotor 10.
  • the electric motor is operated by supplying direct current to the stator
  • coils 8a, 8c, 8e and 8g are provided with current from the
  • the position detector detects the magnets 7 being at a certain position with relation to the coils 8, the currents within the coils 8 are switched to switch the direction of the
  • the control circuit is able to switch the currents at the appropriate
  • the coils electricity within the casing of the motor are the coils, but the coils may be insulated
  • Fig. 1 The preferred embodiment of the electric motor illustrated in Fig. 1 can be
  • the liquid can flow continuously through the shaft bearings 4, 5 and shaft cavity 20 of
  • the motor so as to provide continuous self-lubrication of the shaft and bearings and a
  • the chamber 18 may
  • seals such as an O-ring seal 21 shown in Fig. 1, so as to
  • the motor may be configured to provide variable speed and/or
  • the present invention enables a compact construction of

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

L'invention concerne un électromoteur (1) à courant continu comprenant un rotor annulaire (10) capable d'effectuer une rotation autour de son axe principal (12) et comportant une pluralité d'aimants permanents (7) placés autour de l'axe (12) de rotation dudit rotor (10) sur une face de ce dernier, de sorte que les pôles magnétiques des aimants sont parallèles à l'axe (12) de rotation du rotor. Cet électromoteur comprend, de plus, un stator, possédant une pluralité de bobines (8) capables de produire des champs magnétiques à orientation nord-sud sensiblement parallèles à l'axe (12) de rotation du rotor. Ce rotor est monté rotatif par rapport au stator et des moyens de commande commutent le champ magnétique des bobines (8) du stator, de façon à provoquer la rotation du rotor en fonctionnement autour de son axe (12).
PCT/AU1998/000717 1997-09-05 1998-09-04 Moteur a courant continu sans balais WO1999013558A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU89646/98A AU8964698A (en) 1997-09-05 1998-09-04 A brushless d.c. motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO8997 1997-09-05
AUPO8997A AUPO899797A0 (en) 1997-09-05 1997-09-05 An electric motor

Publications (1)

Publication Number Publication Date
WO1999013558A1 true WO1999013558A1 (fr) 1999-03-18

Family

ID=3803283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1998/000717 WO1999013558A1 (fr) 1997-09-05 1998-09-04 Moteur a courant continu sans balais

Country Status (3)

Country Link
AU (1) AUPO899797A0 (fr)
WO (1) WO1999013558A1 (fr)
ZA (1) ZA988121B (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198182B1 (en) * 1998-09-02 2001-03-06 Cts Corporation Two-phase stepper motor having two disk stators with salient poles positioned on either side of two disk rotors
CN100359786C (zh) * 2005-02-05 2008-01-02 中国科学院沈阳自动化研究所 一种水下直流无刷充油电机结构
CN102537348A (zh) * 2012-03-07 2012-07-04 同济大学 多通道水下进样装置
CN102785750A (zh) * 2012-07-28 2012-11-21 成都宽和科技有限责任公司 壳体内多磁块不均匀分布的传感元件
CN102785749A (zh) * 2012-07-28 2012-11-21 成都宽和科技有限责任公司 壳体内多磁块均匀分布的传感元件
CN102795301A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 有壳体内多磁块不均匀分布磁通量传感器的助力自行车
CN102795306A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 装多磁块均匀分布转盘式传感器的助力自行车
CN102795294A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 多磁块均匀分布的转盘式传感元件
CN102798407A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 在壳体内多磁块位置可调节的传感器
CN102795296A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 有壳体内多磁块不均匀分布传感器的助力自行车
CN102826179A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 壳体内多磁块位置和磁通量可调节的传感元件
CN102826181A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 多磁块不均匀分布磁通量的转盘式传感元件
CN102826174A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 电机壳上设磁块位置不均匀分布传感器的助力自行车
CN102826186A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 助力自行车用多磁块位置和磁通量可调节的转盘式传感器
CN102826172A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 链盘上设多磁块位置和磁通量可调节传感器的助力自行车
CN102826183A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 有壳体多磁块位置和磁通量都不均匀分布传感器的助力车
CN102826175A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 有壳体内多磁块位置可调节传感器的助力自行车
CN102826176A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 多磁块和各点磁通量可调的转盘式传感元件
CN102826184A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 壳体内多磁块不均匀分布磁通量的传感元件
CN102826164A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 壳体内多磁块位置可调节的传感元件
CN103383270A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 壳体内多磁片位置和磁通量不均匀分布的传感元件
CN103381874A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 多磁片和磁通量都不均匀分布的转盘式传感元件
US10608509B2 (en) 2016-10-17 2020-03-31 Roul Delroy MARTIN Rotatable electric machines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620139A (en) * 1985-07-22 1986-10-28 Kabushiki Kaisha Shicoh Giken Brushless d.c. motor
US4745345A (en) * 1986-12-02 1988-05-17 Camatec Corporation D.C. motor with axially disposed working flux gap
EP0352214A2 (fr) * 1988-07-18 1990-01-24 Mueller And Smith, Lpa Moteur à courant continu
WO1995010134A1 (fr) * 1993-10-05 1995-04-13 Ncbf Pty. Ltd. Moteur a aimants permanents et a commutation electronique
WO1997008805A1 (fr) * 1994-01-28 1997-03-06 Cadac Limited Electromoteur en forme de disque plastique a courant continu sans balai

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620139A (en) * 1985-07-22 1986-10-28 Kabushiki Kaisha Shicoh Giken Brushless d.c. motor
US4745345A (en) * 1986-12-02 1988-05-17 Camatec Corporation D.C. motor with axially disposed working flux gap
EP0352214A2 (fr) * 1988-07-18 1990-01-24 Mueller And Smith, Lpa Moteur à courant continu
WO1995010134A1 (fr) * 1993-10-05 1995-04-13 Ncbf Pty. Ltd. Moteur a aimants permanents et a commutation electronique
WO1997008805A1 (fr) * 1994-01-28 1997-03-06 Cadac Limited Electromoteur en forme de disque plastique a courant continu sans balai

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198182B1 (en) * 1998-09-02 2001-03-06 Cts Corporation Two-phase stepper motor having two disk stators with salient poles positioned on either side of two disk rotors
CN100359786C (zh) * 2005-02-05 2008-01-02 中国科学院沈阳自动化研究所 一种水下直流无刷充油电机结构
CN102537348A (zh) * 2012-03-07 2012-07-04 同济大学 多通道水下进样装置
CN102537348B (zh) * 2012-03-07 2014-08-13 同济大学 多通道水下进样装置
CN102826175A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 有壳体内多磁块位置可调节传感器的助力自行车
CN102826176A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 多磁块和各点磁通量可调的转盘式传感元件
CN102795306A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 装多磁块均匀分布转盘式传感器的助力自行车
CN102795294A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 多磁块均匀分布的转盘式传感元件
CN102798407A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 在壳体内多磁块位置可调节的传感器
CN102795296A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 有壳体内多磁块不均匀分布传感器的助力自行车
CN102826179A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 壳体内多磁块位置和磁通量可调节的传感元件
CN102826181A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 多磁块不均匀分布磁通量的转盘式传感元件
CN102826174A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 电机壳上设磁块位置不均匀分布传感器的助力自行车
CN102826186A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 助力自行车用多磁块位置和磁通量可调节的转盘式传感器
CN102826172A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 链盘上设多磁块位置和磁通量可调节传感器的助力自行车
CN102826183A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 有壳体多磁块位置和磁通量都不均匀分布传感器的助力车
CN102785749A (zh) * 2012-07-28 2012-11-21 成都宽和科技有限责任公司 壳体内多磁块均匀分布的传感元件
CN102795301A (zh) * 2012-07-28 2012-11-28 成都宽和科技有限责任公司 有壳体内多磁块不均匀分布磁通量传感器的助力自行车
CN102826184A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 壳体内多磁块不均匀分布磁通量的传感元件
CN102826164A (zh) * 2012-07-28 2012-12-19 成都宽和科技有限责任公司 壳体内多磁块位置可调节的传感元件
CN103381872A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 壳体内多磁块不均匀分布的传感元件
CN103381873A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 壳体内多磁块不均匀分布磁通量的传感元件
CN103383270A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 壳体内多磁片位置和磁通量不均匀分布的传感元件
CN103381869A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 壳体内多磁片均匀分布的传感元件
CN103381874A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 多磁片和磁通量都不均匀分布的转盘式传感元件
CN103381870A (zh) * 2012-07-28 2013-11-06 成都宽和科技有限责任公司 多磁块不均匀分布磁通量的转盘式传感元件
CN102826164B (zh) * 2012-07-28 2014-02-05 成都宽和科技有限责任公司 壳体内多磁块位置可调节的传感元件
CN102795301B (zh) * 2012-07-28 2014-02-05 成都宽和科技有限责任公司 有壳体内多磁块不均匀分布磁通量传感器的助力自行车
CN102826186B (zh) * 2012-07-28 2014-02-05 成都宽和科技有限责任公司 助力自行车用多磁块位置和磁通量可调节的转盘式传感器
CN102826183B (zh) * 2012-07-28 2014-03-26 成都宽和科技有限责任公司 有壳体多磁块位置和磁通量都不均匀分布传感器的助力车
CN102785750A (zh) * 2012-07-28 2012-11-21 成都宽和科技有限责任公司 壳体内多磁块不均匀分布的传感元件
US10608509B2 (en) 2016-10-17 2020-03-31 Roul Delroy MARTIN Rotatable electric machines

Also Published As

Publication number Publication date
ZA988121B (en) 1999-03-05
AUPO899797A0 (en) 1997-10-02

Similar Documents

Publication Publication Date Title
WO1999013558A1 (fr) Moteur a courant continu sans balais
EP0148347B1 (fr) Moteurs à courant continu sans balais
KR101192483B1 (ko) 스위칭 코일구조를 갖는 단극 전동발전기
KR100900165B1 (ko) 모터
US6424114B1 (en) Synchronous motor
KR970706640A (ko) 전자식으로 스위치되는 유도 모터(electronically switched reluctance motor)
KR20080035680A (ko) 단극 자기장 전동발전기
EP1078442A1 (fr) Moteur multi-stators a circuits de stator independents
JP5397466B2 (ja) 電動機およびそれを備えた電気機器
KR19980075864A (ko) 브러시리스 dc모터
KR101016015B1 (ko) 브러시가 적용된 스위치드 릴럭턴스 모터
US7071643B2 (en) Dual speed quad brush two pole motor system
JP2012222841A (ja) 電動機およびそれを備えた電気機器
KR200276254Y1 (ko) 브러시리스 모터
US20080136288A1 (en) Commutator and Method of Commutating Current in a Rotating Electrical Machine
KR100586972B1 (ko) 정류자형 직류모터
KR20240029893A (ko) 마찰 발전기용 슬림형 디스크 구동장치
KR102655249B1 (ko) 모터 및 이를 포함하는 전동식 조향장치
KR20020029338A (ko) 편평형 진동 모터
AU760607B2 (en) Electronically controlled electric motor provided for use in an environment containing solvents
KR101724098B1 (ko) 일체형 비접촉식 모터 및 브러시와 정류자를 이용한 인버터 유닛
KR100206772B1 (ko) 단극마그네트를 구비한 직류모터
KR880001834B1 (ko) 주파수 발전기와 위상발전기가 내장된 모우터
KR20150009832A (ko) 브러시 회전 직류 브러시 모터
KR19990031411U (ko) 모터용 고정자의 슬롯부 절연구조

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA