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WO2017175999A1 - Moteur ayant de multiples axes de rotation - Google Patents

Moteur ayant de multiples axes de rotation Download PDF

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Publication number
WO2017175999A1
WO2017175999A1 PCT/KR2017/003248 KR2017003248W WO2017175999A1 WO 2017175999 A1 WO2017175999 A1 WO 2017175999A1 KR 2017003248 W KR2017003248 W KR 2017003248W WO 2017175999 A1 WO2017175999 A1 WO 2017175999A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotary belt
drive motor
shaft drive
motor according
rotating
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/KR2017/003248
Other languages
English (en)
Inventor
Seok Ki JI
Won Rok Song
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2017175999A1 publication Critical patent/WO2017175999A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
    • H02K7/1008—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys structurally associated with the machine rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present invention relates to a multi-shaft drive motor, and more particularly to a multi-shaft drive motor which can improve space utilization efficiency in a narrow space, such as the interior of an electric vehicle, while preventing shaking of a vehicle or uneven wear of a tire due to simultaneous use of multiple motors (for front and rear wheels) upon driving at high speed.
  • a motor is also called an electric motor and converts electrical energy into mechanical energy by means of force exerted on a current-carrying conductor placed in a magnetic field.
  • a motor is widely used to rotationally drive various devices.
  • a motor is composed of a stator 20 securely mounted in a housing 10 and a rotor 30 passing through the center of the stator 20 and provided with a rotating shaft 31 to transmit torque of the rotor to the outside.
  • the rotating shaft is rotatably mounted in the housing by a bearing 40.
  • the rotatably mounted rotating shaft can be smoothly rotated without shaking laterally due to the action of the bearing.
  • the motor is subjected to load in a perpendicular direction with respect to the ground.
  • Korean Patent Publication No. 2010-50834 discloses a motor (see Fig. 13) that includes a cylindrical stator 20 securely mounted in a housing 10 and a rotor 30 passing through the center of the stator 20 and connected to a rotating shaft, wherein the motor further includes magnets 311 disposed at both ends thereof and rotating together with the rotor and a stationary magnet disposed in the housing to face the magnets 311 and allowing the rotor 30 to be held floating in the housing through mutual repulsion with the magnets 311 such that the rotor can be supported in a non-contact manner, thereby reducing friction loss due to contact while increasing operation efficiency.
  • the motor takes up a large volume.
  • a multi-shaft drive motor including: a caterpillar-type rotary belt facing a magnetic field forming core unit disposed on an inner surface of a case; a facing magnet unit disposed on an outer surface of the rotary belt and performing magnetic interaction with the magnetic field forming core unit; and a plurality of rotating shafts disposed on an inner surface of the rotary belt to be rotated by rotation of the rotary belt.
  • the rotating shaft may include mating teeth engaged with gear teeth formed on the inner surface of the rotary belt to be geared with the rotary belt to be rotated by rotation of the rotary belt.
  • the case may include a case body formed along a rotating surface of the rotary belt and a cover having a rotating hole through which the rotating shaft passes.
  • the magnetic field forming core unit may include a core and a coil wound around the core.
  • the rotating shaft may be a bar member secured to the center of a mating disk adjoining the inner surface of the rotary belt.
  • the mating disk may have mating teeth engaged with the gear teeth.
  • the facing magnet unit may include a magnet securing portion securing the facing magnet unit to the rotary belt and a magnet.
  • the facing magnet unit may include a permanent magnet or an electromagnet.
  • the multi-shaft drive motor may further include a dummy disk disposed in a section of the rotary belt connected to the rotating shaft to adjoin the inner surface of the rotary belt to be rotated by rotation of the rotary belt.
  • the dummy disk may include separate mating teeth engaged with the gear teeth.
  • the multi-shaft drive motor may further include a rotating unit adjoining the outer surface of the rotary belt to prevent sagging or lifting of the rotary belt.
  • the rotating unit may be formed of a magnetic material.
  • a multi-shaft drive motor which can improve space utilization efficiency in a narrow space, such as the inside of an electric vehicle, while preventing shaking of a vehicle or uneven wear of a tire due to simultaneous use of multiple motors (for front and rear wheels) upon driving at high speed.
  • Fig. 1 is a perspective view of a motor according to the present invention
  • Fig. 2 is an exploded perspective view of the motor according to the present invention.
  • Fig. 3 is a perspective view of a rotating shaft, disk, and rotary belt of the motor of Fig. 2 and an enlarged view of a facing magnet unit;
  • Fig. 4 is a cross-sectional view taken along line V-V of Fig. 1;
  • Fig. 5 is an enlarged view of portion VI of Fig. 4;
  • Fig. 6 is a cross-sectional view taken along line VII-VII in Fig. 4;
  • Fig. 7 is a perspective view of the interior of the motor with a rotating unit
  • Fig. 8 is a side view of the rotary belt with a dummy disk and an enlarged view of the rotating unit;
  • Fig. 9 is a cross-sectional view taken along line X-X of FIG. 8, mainly showing the facing magnet unit and the rotating unit;
  • Fig. 10 is a cross-sectional view of another embodiment taken along line X-X of Fig. 8, mainly showing the facing magnet unit and the rotating unit;
  • Fig. 11 is a conceptual view of the motor according to the present invention incorporated in a rear-wheel drive electric vehicle, wherein an augmenting belt is provided for higher power output;
  • Fig. 12 is a sectional view of a typical cylindrical motor
  • Fig. 13 is a sectional view of another typical cylindrical motor.
  • Fig. 1 is a perspective view of a motor according to the present invention
  • Fig. 2 is an exploded perspective view of the motor according to the present invention
  • Fig. 3 is a perspective view of a rotating shaft, disk, and rotary belt of the motor of Fig. 2 and an enlarged view of a facing magnet unit
  • Fig. 4 is a cross-sectional view taken along line V-V of Fig. 1
  • Fig. 5 is an enlarged view of portion VI of Fig. 4
  • Fig. 6 is a cross-sectional view taken along line VII-VII in Fig. 4
  • Fig. 7 is a perspective view of the interior of the motor with a rotating unit
  • Fig. 8 is a side view of the rotary belt with a dummy disk and an enlarged view of the rotating unit;
  • Fig. 9 is a cross-sectional view taken along line X-X of FIG. 8, mainly showing the facing magnet unit and the rotating unit;
  • Fig. 10 is a cross-sectional view of another embodiment taken along line X-X of Fig. 8, mainly showing the facing magnet unit and the rotating unit;
  • Fig. 11 is a conceptual view of the motor according to the present invention incorporated in a rear-wheel drive electric vehicle, wherein an augmenting belt is provided for higher power output.
  • a multi-shaft drive motor 1000 includes a caterpillar-type rotary belt 200 facing a magnetic field forming core unit 110 disposed on an inner surface of the case 100, a facing magnet unit 300 disposed on an outer surface of the rotary belt to perform magnetic interaction with the magnetic field forming core unit 110, and a plurality of rotating shafts 400 disposed on an inner surface of the rotary belt to adjoin the rotary belt 200 to be rotated by rotation of the rotary belt.
  • the case 100 is a housing which contains the rotary belt 200 and the facing magnet unit 300 disposed on the outer surface of the rotary belt 200 and supports transmission of torque generated by rotation of the rotating shaft 400 to an end 400' of the rotating shaft exposed outside the case.
  • the case 100 may include a case body 120 formed along a rotating surface of the rotary belt to facilitate installation or removal of the rotary belt for assembly or repair, and a cover 130 having a rotating hole 132 through which the rotating shaft 400 passes to support the rotating shaft.
  • the rotating hole may be provided with a friction reducing member 134 such as a rolling bearing, a sliding bearing or a ball bearing to allow smooth rotation of the rotating shaft.
  • the magnetic field forming core unit 110 disposed on the inner surface of the case 100 forms a magnetic field in conjunction with the facing magnet unit 300 facing the magnetic field forming core unit 110 to rotate the rotary belt 200.
  • the magnetic field forming core unit 110 includes a core 112, which is formed by stacking silicon steel plates, drawn steel plates, forged steel plates, or phosphorus-containing copper alloy plates and non-conductors for electrical insulation, such as mica, in an alternating manner, and a coil 114 wound around the core 112 so as to form a magnetic field when electric current is applied thereto.
  • the magnetic field forming core unit 110 may be coupled to the case 100 by a bolt b passing through a fastening hole 122 formed through the case body 120.
  • the magnetic field forming core unit 110 can be easily replaced during assembly or repair, thereby saving time while reducing costs.
  • the caterpillar-type rotary belt 200 is rotated through magnetic interaction of the facing magnet unit 300 with the magnetic field forming core unit 110 of the case body 120, which is formed along the rotating surface of the rotary belt to face the rotary belt.
  • the caterpillar-type rotary belt may be formed of durable polymers, rubbers or metals. The rotary belt contacts and rubs against the rotating shaft such that torque generated by a magnetic force of the rotary belt can be transmitted to the rotating shaft.
  • the rotating shaft 400 may include mating teeth g2 engaged with gear teeth g1 formed on the inner surface of the rotary belt 200 to be geared with the rotary belt 200 to be rotated by rotation of the rotary belt.
  • the gear teeth g1 are arranged at regular pitches on the inner surface of the rotary belt 200, that is, on the surface of the rotary belt 200 facing the rotating shaft 400 to rotate the rotating shaft 400 including the mating teeth g2 arranged at the same pitches to be engaged with the gear teeth.
  • the rotating shaft 400 may be a bar member secured to the center of a mating disk 410 formed with the mating teeth g2. Since it is easier to increase or decrease the diameter of the mating disk than to increase or decrease the diameter of the rotating shaft 400 in order to obtain a desired torque output, it is desirable that the mating disk be used.
  • the rotary belt 200 is provided on the outer surface thereof with the facing magnet unit 300 to perform magnetic interaction with the magnetic field forming core unit 110.
  • the facing magnet unit 300 may include a magnet securing portion 310, which secures the facing magnet unit 300 to the rotary belt 200, and a magnet 320 inserted into a central groove 312 of the magnet securing portion 310.
  • the magnet securing portion 310 may be bolted to a magnet hole (not shown) perforated in the rotary belt 200, or may include a clip or a clamp foot (not shown) to grasp transverse edges of the rotary belt 200.
  • the magnet hole or the clamp foot is preferably formed at transverse ends of the rotary belt 200 not adjoining the mating teeth g2.
  • the magnet securing portion 310 may be formed with the central groove 312 in which the magnet 320 is inserted and seated.
  • the magnet 320 may be a permanent magnet capable of performing magnetic interaction with the magnetic field forming core unit 110, it should be understood that the margent may also be an electromagnet.
  • the magnet securing portion 310 may be provided with an armature winding coil (not shown).
  • the coil 114 of the magnetic field forming core unit 110 or the armature winding coil may be wound by any suitable method known in the art, and electric current applied to the coils may be regulated and supplied by an external power supply or a controller (not shown) to rotate the rotary belt 200.
  • a dummy disk may be separately disposed in a section of the rotary belt 200 connected to the rotating shaft 400.
  • the dummy disk 420 may be provided with separate mating teeth g2 for gear engagement.
  • the dummy disk 420 refers to a device that is rotated by rotation of the rotary belt, but does not transmit torque to the outside.
  • the rotary belt 200 may include a rotating unit 500 to prevent sagging or lifting in a section of the rotary belt 200 connected to the rotational shaft 400.
  • ends 400' of adjacent rotating shafts may be connected to one another through a reinforcing belt 600 to increase torque transmitted to the outside.
  • the end of the rotating shaft engaged with the reinforcing belt 600 may be formed of typical polymers, rubbers, or metals.
  • the ends 400' of the rotating shafts not engaged with the reinforcing belt may be connected to one another through frictional engagement or gear engagement between respective shaft disks (not shown).
  • the rotating unit 500 may include: a rotating roller or rotating ball 510 adjoining the rotary belt or the facing magnet unit and rotating within a rotating housing 520; and a rotating support 530 for the rotating housing which is secured at one end thereof to one surface of the rotating housing and secured at the other end thereof to the inner surface of the case 100.
  • the rotating unit 500 may also be disposed around a rotating disk 410 such that the rotary belt can be rotated in such a way that stable and accurate magnetic field interaction is achieved.
  • the rotating unit, the rotating roller, and the rotating ball may be formed of a magnetic material such that sagging or lifting of the rotary belt can be further prevented due to attraction of a magnetic field generated through interaction with the facing magnet unit.
  • Magnetic field forming core unit 200 Rotary belt

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un moteur d'entraînement à arbres multiples. Le moteur d'entraînement à arbres multiples comprend : une courroie rotative de type chenille faisant face à une unité centrale de formation de champ magnétique disposée sur une surface interne d'un boîtier ; une unité d'aimant en regard disposée sur une surface externe de la courroie rotative avec d'effectuer une interaction magnétique avec l'unité centrale de formation de champ magnétique ; et une pluralité d'arbres rotatifs disposés sur une surface interne de la courroie rotative afin de jouxter la courroie rotative pour être entraînés en rotation par la rotation de la courroie rotative. Le moteur d'entraînement à arbres multiples selon la présente invention peut améliorer l'efficacité d'utilisation de l'espace dans un espace étroit, comme l'intérieur d'un véhicule électrique, tout en empêchant les vibrations d'un véhicule ou l'usure irrégulière d'un pneumatique en raison de l'utilisation simultanée de multiples moteurs (pour les roues avant et arrière) lors de l'entraînement à grande vitesse.
PCT/KR2017/003248 2016-04-04 2017-03-27 Moteur ayant de multiples axes de rotation Ceased WO2017175999A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0040913 2016-04-04
KR1020160040913A KR101789597B1 (ko) 2016-04-04 2016-04-04 다축구동 모터

Publications (1)

Publication Number Publication Date
WO2017175999A1 true WO2017175999A1 (fr) 2017-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/003248 Ceased WO2017175999A1 (fr) 2016-04-04 2017-03-27 Moteur ayant de multiples axes de rotation

Country Status (2)

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KR (1) KR101789597B1 (fr)
WO (1) WO2017175999A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017210413A1 (de) * 2017-06-21 2018-12-27 Volkswagen Aktiengesellschaft Elektrische Antriebsvorrichtung und Kraftfahrzeug
CN110868032A (zh) * 2018-08-28 2020-03-06 普拉特 - 惠特尼加拿大公司 多转子电机
EP3688863A1 (fr) * 2017-09-27 2020-08-05 Neapco Intellectual Property Holdings, LLC Moteur électrique supporté par lubrifiant
US12498037B2 (en) * 2022-12-08 2025-12-16 Neapco Intellectual Property Holdings, Llc Lubricant supported electric motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000095176A (ja) * 1998-09-28 2000-04-04 Sanyo Electric Co Ltd ベルト型駆動装置
KR20020034602A (ko) * 2000-11-02 2002-05-09 박주현 전신 마사지 장치
US20070171104A1 (en) * 2006-01-17 2007-07-26 Harmonic Drive Systems Inc. Apparatus for transmitting position detection signal of multi-shaft motor
US20110127942A1 (en) * 2008-11-11 2011-06-02 Shenzhen Academy Of Aerospace Technology Control System of Multi-Shaft Servo Motor
US20130342152A1 (en) * 2011-02-28 2013-12-26 Kabushiki Kaisha Yaskawa Denki Multi-shaft motor drive device and multi-axis motor drive system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000095176A (ja) * 1998-09-28 2000-04-04 Sanyo Electric Co Ltd ベルト型駆動装置
KR20020034602A (ko) * 2000-11-02 2002-05-09 박주현 전신 마사지 장치
US20070171104A1 (en) * 2006-01-17 2007-07-26 Harmonic Drive Systems Inc. Apparatus for transmitting position detection signal of multi-shaft motor
US20110127942A1 (en) * 2008-11-11 2011-06-02 Shenzhen Academy Of Aerospace Technology Control System of Multi-Shaft Servo Motor
US20130342152A1 (en) * 2011-02-28 2013-12-26 Kabushiki Kaisha Yaskawa Denki Multi-shaft motor drive device and multi-axis motor drive system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017210413A1 (de) * 2017-06-21 2018-12-27 Volkswagen Aktiengesellschaft Elektrische Antriebsvorrichtung und Kraftfahrzeug
EP3688863A1 (fr) * 2017-09-27 2020-08-05 Neapco Intellectual Property Holdings, LLC Moteur électrique supporté par lubrifiant
CN110868032A (zh) * 2018-08-28 2020-03-06 普拉特 - 惠特尼加拿大公司 多转子电机
US12498037B2 (en) * 2022-12-08 2025-12-16 Neapco Intellectual Property Holdings, Llc Lubricant supported electric motor

Also Published As

Publication number Publication date
KR101789597B1 (ko) 2017-11-20
KR20170114090A (ko) 2017-10-13

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