WO2020067707A1 - Dispositif d'entraînement pour automobile électrique - Google Patents

Dispositif d'entraînement pour automobile électrique Download PDF

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Publication number
WO2020067707A1
WO2020067707A1 PCT/KR2019/012424 KR2019012424W WO2020067707A1 WO 2020067707 A1 WO2020067707 A1 WO 2020067707A1 KR 2019012424 W KR2019012424 W KR 2019012424W WO 2020067707 A1 WO2020067707 A1 WO 2020067707A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
reduction gear
gear set
storage space
electric vehicle
Prior art date
Application number
PCT/KR2019/012424
Other languages
English (en)
Korean (ko)
Inventor
성창우
강주항
이정구
박용식
Original Assignee
엘지전자 주식회사
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
Priority claimed from KR1020180114985A external-priority patent/KR102100666B1/ko
Priority claimed from KR1020180114979A external-priority patent/KR102112554B1/ko
Priority claimed from KR1020180119663A external-priority patent/KR102046881B1/ko
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2020067707A1 publication Critical patent/WO2020067707A1/fr

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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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • 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

  • an object of the present invention is to provide a drive device for an electric vehicle that can move oil in the opposite direction of gravity using the rotational force of the reduction gear and perform refueling even to a differential gear built in the rotor.
  • the motor case may include a cylindrical case body and a flow path forming part protruding from the outer circumferential surface of the case body and forming the first oil flow path.
  • the motor case further includes a guide flow path extending upward from the first oil flow path and connecting the inner space of the motor case with the first oil flow path, so that the oil stored in the motor case passes through the guide flow path. 1 It can be introduced into the oil passage.
  • An inner circumferential surface of the recovery guide includes an inclined surface extending obliquely to reduce the flow space of oil in a direction from the differential gear to the reduction gear set.
  • FIG. 7 is an exploded perspective view showing a partial configuration of a right part of a driving device for an electric vehicle according to a first embodiment of the present invention.
  • FIG. 12 is a perspective view showing a configuration of a driving device for an electric vehicle according to a second embodiment of the present invention.
  • FIG. 13 is an internal perspective view showing a configuration of a drive device for an electric vehicle according to a second embodiment of the present invention.
  • the planetary gear set 170 will be briefly described.
  • the sun gear 172 rotates, and the plurality of planet gears 173 rotate along the inner circumferential surface of the ring gear 171 while rotating in conjunction with the sun gear 172. can do.
  • the carrier 174 may rotate by revolution of the plurality of planet gears 173.
  • a second reduction gear set 420 or 430 is coupled to the second differential shaft 175.
  • the second reduction gear set 420 and 430 includes a first reduction gear 420 coupled to the second differential shaft 175 and a second reduction gear coupled to the lower side of the first reduction gear 420. 430 is included.
  • the motor case 110 includes a cylindrical case body 111 and a flow path forming part 112 protruding from the case body 111.
  • the flow path forming part 112 may be understood as a protrusion protruding from the case body 111 to form the first oil flow path 114 inside the case body 111.
  • the flow path forming part 112 may extend from the left side of the case body 111 toward the right side in the left and right directions.
  • the first oil hole 122 and the second oil hole 132 may be formed at the same height. Accordingly, the level of oil stored in the first oil storage space 207 and the level of oil stored in the second oil storage space 407 may be balanced.
  • the cooling water flow path 114 may extend in a circumferential direction of the case body 111 having a cylindrical shape.
  • the cooling water flow path 114 is configured to have a ring shape, and a driving motor 300 may be disposed inside the cooling water flow path 114. That is, the cooling water flow path 114 may be arranged to surround the driving motor 300.
  • the oil recovery hole 133 is formed through the right side of the second intermediate cover 130, and communicates the installation space of the planetary gear set 170 and the installation space of the reduction gear set 420,430. Accordingly, oil stored in the third oil storage space 178 (see FIG. 14) may flow to the second oil storage space 407 through the oil recovery hole 133.
  • the second intermediate cover 130 includes a flow path connecting portion 138 communicating with the first oil flow path portion 480. That is, the flow path connecting portion 138 may be fluidly connected to the oil guide groove 418. In one example, the flow path connecting portion 138 may be coupled to the outer portion of the oil guide groove 418.
  • oil may be inclined toward the second reduction gear set 420 and 430, but the present invention prevents this problem by improving the circulation structure of the oil.
  • the inlet guide 270 further includes a protrusion 272 that protrudes from the left side of the guide body 271 and guides oil to the inlet hole 271a.
  • the protrusion 272 includes two protrusions extending in different directions from the inlet hole 271a. In one example, the two protrusions may extend in an intersecting direction to have a V shape.
  • the first and second cover bodies 211 and 212 may have a structure recessed in a circular shape so that the first and second reduction gears 220 and 230 may be seated at an angle. That is, the second gear mounting portion 211a may be configured to be recessed circularly from one surface of the first cover body 211.
  • the oil is guided by the recovery guide 275 and can easily flow to the left side.
  • the inner circumferential surface of the recovery guide 275 is formed with an inclined surface 276 that reduces the oil flow space toward the left side, so that the flow rate of the oil toward the left side can be increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

La présente invention concerne un dispositif d'entraînement pour automobile électrique. Le dispositif d'entraînement pour automobile électrique, selon un mode de réalisation de la présente invention, comprend : un train d'engrenages de réduction de vitesse qui comprend un premier train d'engrenages de réduction de vitesse et un second train d'engrenages de réduction de vitesse qui sont accouplés à un arbre différentiel s'étendant depuis un engrenage différentiel ; un espace de stockage d'huile qui est formé sur la partie inférieure du premier train d'engrenages de réduction de vitesse et/ou du second train d'engrenages de réduction de vitesse ; et un trajet d'écoulement d'huile dans lequel l'huile s'écoule depuis l'espace de stockage d'huile vers la partie supérieure d'un couvercle de boîtier lorsque le train d'engrenages de réduction de vitesse tourne à l'intérieur du couvercle de boîtier.
PCT/KR2019/012424 2018-09-27 2019-09-24 Dispositif d'entraînement pour automobile électrique WO2020067707A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2018-0114985 2018-09-27
KR1020180114985A KR102100666B1 (ko) 2018-09-27 2018-09-27 전기 자동차용 구동장치
KR10-2018-0114979 2018-09-27
KR1020180114979A KR102112554B1 (ko) 2018-09-27 2018-09-27 전기 자동차용 구동장치
KR1020180119663A KR102046881B1 (ko) 2018-10-08 2018-10-08 전기 자동차용 구동장치
KR10-2018-0119663 2018-10-08

Publications (1)

Publication Number Publication Date
WO2020067707A1 true WO2020067707A1 (fr) 2020-04-02

Family

ID=69953035

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/012424 WO2020067707A1 (fr) 2018-09-27 2019-09-24 Dispositif d'entraînement pour automobile électrique

Country Status (1)

Country Link
WO (1) WO2020067707A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006217A1 (fr) * 2021-07-30 2023-02-02 Gkn Automotive Limited Entraînement électrique pour véhicule automobile
US11973396B2 (en) * 2021-03-31 2024-04-30 Honda Motor Co., Ltd. Electric transmission for an electric lawnmower

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005320998A (ja) * 2004-05-07 2005-11-17 Toyota Industries Corp 差動装置
KR20060020532A (ko) * 2004-08-31 2006-03-06 현대자동차주식회사 수동변속기의 오일 공급기구
EP1810862B1 (fr) * 2006-01-19 2008-09-17 Rögelberg Holding GmbH & Co. KG Essieu moteur
JP2009303367A (ja) * 2008-06-12 2009-12-24 Honda Motor Co Ltd 車両用駆動モータユニット
JP2013119918A (ja) * 2011-12-08 2013-06-17 Aisin Seiki Co Ltd 動力伝達装置
CN206628944U (zh) * 2017-04-24 2017-11-10 张华卿 一种电动汽车直驱电机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005320998A (ja) * 2004-05-07 2005-11-17 Toyota Industries Corp 差動装置
KR20060020532A (ko) * 2004-08-31 2006-03-06 현대자동차주식회사 수동변속기의 오일 공급기구
EP1810862B1 (fr) * 2006-01-19 2008-09-17 Rögelberg Holding GmbH & Co. KG Essieu moteur
JP2009303367A (ja) * 2008-06-12 2009-12-24 Honda Motor Co Ltd 車両用駆動モータユニット
JP2013119918A (ja) * 2011-12-08 2013-06-17 Aisin Seiki Co Ltd 動力伝達装置
CN206628944U (zh) * 2017-04-24 2017-11-10 张华卿 一种电动汽车直驱电机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11973396B2 (en) * 2021-03-31 2024-04-30 Honda Motor Co., Ltd. Electric transmission for an electric lawnmower
WO2023006217A1 (fr) * 2021-07-30 2023-02-02 Gkn Automotive Limited Entraînement électrique pour véhicule automobile

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