KR101509793B1 - Motor Cooling Structure for Transmission of Hybrid Vehicle - Google Patents

Motor Cooling Structure for Transmission of Hybrid Vehicle Download PDF

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Publication number
KR101509793B1
KR101509793B1 KR20090103980A KR20090103980A KR101509793B1 KR 101509793 B1 KR101509793 B1 KR 101509793B1 KR 20090103980 A KR20090103980 A KR 20090103980A KR 20090103980 A KR20090103980 A KR 20090103980A KR 101509793 B1 KR101509793 B1 KR 101509793B1
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South Korea
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motor
cooling
oil passage
cooling oil
transmission
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KR20090103980A
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Korean (ko)
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KR20110047382A (en
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김채용
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현대자동차주식회사
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    • 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
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • 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
    • B60K20/00—Arrangement or mounting of change-speed gearing control devices in vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

본 발명은 별도로 냉각장치 탑재성의 문제를 발생시키지 않으면서도, 두 개의 모터를 사용하는 하이브리드 파워트레인에서 모터들의 냉각이 효과적으로 수행되도록 함으로써, 요구되는 냉각성능을 충분히 확보하여 제공함에 따라 모터 및 하이브리드 변속기의 내구성을 향상시킬 수 있도록 한다.The present invention can effectively cool the motors in a hybrid power train using two motors without causing the problem of the mounting ability of the cooling device separately, thereby ensuring sufficient cooling performance and providing the cooling performance of the motor and the hybrid transmission Thereby improving durability.

모터, 냉각, 노즐, 격벽 Motor, Cooling, Nozzle, Partition

Description

하이브리드 차량 변속기의 모터 냉각구조{Motor Cooling Structure for Transmission of Hybrid Vehicle}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a motor cooling structure for a hybrid vehicle transmission,

본 발명은 하이브리드 차량 변속기의 모터 냉각구조에 관한 것으로서, 보다 상세하게는 차량의 구동력에 기여하는 모터가 2개 구비된 하이브리드 파워트레인의 모터를 냉각시키는 기술에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a motor cooling structure for a hybrid vehicle transmission, and more particularly to a technique for cooling a motor of a hybrid power train having two motors contributing to a driving force of the vehicle.

하이브리드 차량은 모터와 엔진의 동력을 적절히 이용하여 차량을 구동하도록 함으로써, 연비를 향상시키고, 유해 배기가스를 저감시키는 등의 장점을 가지고 있다.The hybrid vehicle has advantages such as improving the fuel consumption and decreasing the harmful exhaust gas by driving the vehicle by appropriately using the power of the motor and the engine.

상기 모터는 작동시에 필연적으로 열이 발생하므로 이에 대한 적절한 냉각 대책이 필요하다.Since the motor necessarily generates heat during operation, appropriate cooling measures are required.

물론, 충분한 냉각성능의 확보를 위해서는 강제 수냉식 냉각장치를 구비하는 것이 바람직하겠지만, 탑재성 등을 고려할 때 적합성이 떨어져서, 종래에는 도 1에 도시된 바와 같이 모터(500)의 하부 일부분만이 오일(502)에 잠기도록 하여 냉각이 이루어지도록 하는 방법을 사용하고 있는데, 이러한 방법으로는 필요로 하는 충분한 냉각성능을 확보할 수 없는 문제가 있다.Although it is preferable to provide a forced water cooling type cooling device in order to secure a sufficient cooling performance, it is not suitable in consideration of mountability and the like. In the past, only a part of the lower part of the motor 500, 502 so that the cooling is performed. However, this method has a problem that sufficient cooling performance required can not be secured.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 별도로 냉각장치 탑재성의 문제를 발생시키지 않으면서도, 두 개의 모터를 사용하는 하이브리드 파워트레인에서 모터의 냉각이 효과적으로 수행되도록 함으로써, 요구되는 냉각성능을 충분히 확보하여 제공할 수 있도록 한 하이브리드 차량 변속기의 모터 냉각구조를 제공함에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a hybrid power train in which two motors are used, And to provide a motor cooling structure of a hybrid vehicle transmission in which the performance can be sufficiently ensured and provided.

상기한 바와 같은 목적을 달성하기 위하여 안출된 본 발명 하이브리드 차량 변속기의 모터 냉각구조는 In order to achieve the above object, a motor cooling structure of a hybrid vehicle transmission according to the present invention,

변속기의 전방에 배치된 제1모터를 감싸는 프론트커버에 형성된 제1냉각오일유로와;A first cooling oil passage formed in a front cover surrounding a first motor disposed in front of the transmission;

변속기의 후방에 배치된 제2모터를 감싸는 리어커버에 형성된 제2냉각오일유로와;A second cooling oil passage formed in a rear cover surrounding a second motor disposed rearward of the transmission;

상기 제1냉각오일유로와 제2냉각오일유로를 연결하도록 변속기케이스에 형성된 제3냉각오일유로와;A third cooling oil passage formed in the transmission case to connect the first cooling oil passage and the second cooling oil passage;

상기 제1냉각오일유로, 제2냉각오일유로 및 제3냉각오일유로와 각각 연통되 어 상기 제1모터 또는 제2모터를 향해 오일을 분사하도록 형성된 다수의 오일분사노즐;A plurality of oil injection nozzles communicating with the first cooling oil passage, the second cooling oil passage and the third cooling oil passage, respectively, so as to inject oil toward the first motor or the second motor;

을 포함하여 구성된 것을 특징으로 한다.And a control unit.

본 발명은 별도로 냉각장치 탑재성의 문제를 발생시키지 않으면서도, 두 개의 모터를 사용하는 하이브리드 파워트레인에서 모터들의 냉각이 효과적으로 수행되도록 함으로써, 요구되는 냉각성능을 충분히 확보하여 제공함에 따라 모터 및 하이브리드 변속기의 내구성을 향상시킬 수 있도록 한다.The present invention can effectively cool the motors in a hybrid power train using two motors without causing the problem of the mounting ability of the cooling device separately, thereby ensuring sufficient cooling performance and providing the cooling performance of the motor and the hybrid transmission Thereby improving durability.

도 2와 도 3을 참조하면, 본 발명 실시예는 변속기의 전방에 배치된 제1모터(1)를 감싸는 프론트커버(3)에 형성된 제1냉각오일유로(5)와; 변속기의 후방에 배치된 제2모터(7)를 감싸는 리어커버(9)에 형성된 제2냉각오일유로(11)와; 상기 제1냉각오일유로(5)와 제2냉각오일유로(11)를 연결하도록 변속기케이스(13)에 형성된 제3냉각오일유로(15)와; 상기 제1냉각오일유로(5), 제2냉각오일유로(11) 및 제3냉각오일유로(15)와 각각 연통되어 상기 제1모터(1) 또는 제2모터(7)를 향해 오일을 분사하도록 형성된 다수의 오일분사노즐(17)을 포함하여 구성된다.Referring to FIGS. 2 and 3, the embodiment of the present invention includes a first cooling oil passage 5 formed in a front cover 3 surrounding a first motor 1 disposed in front of a transmission; A second cooling oil passage (11) formed in a rear cover (9) surrounding a second motor (7) disposed at the rear of the transmission; A third cooling oil passage 15 formed in the transmission case 13 to connect the first cooling oil passage 5 and the second cooling oil passage 11; The first cooling oil passage 5 and the second cooling oil passage 15 communicate with the first cooling oil passage 5 and the second cooling oil passage 15 to discharge the oil toward the first motor 1 or the second motor 7, And a plurality of oil injection nozzles 17 formed so as to form a plurality of oil injection nozzles.

즉, 본 실시예의 하이브리드 변속기는 도시된 바와 같이 제1모터(1)와 제2모 터(7) 2개를 변속기의 제일 전방과 후방에 각각 배치하고 있고, 상기 프론트커버(3)와 리어커버(9)로 감싸고 있는 구조이며, 상기 프론트커버(3)의 제1냉각오일유로(5)로부터 공급되는 냉각을 위한 오일을 변속기케이스(13)의 제3냉각오일유로(13)를 통해 상기 리어커버(9)의 제2냉각오일유로(11)까지 공급하고, 각 오일유로에는 다수의 오일분사노즐(17)을 구비하여 제1모터(1)와 제2모터(7)를 대체로 상측으로부터 오일로 냉각하여 전체적인 냉각이 효과적으로 이루어질 수 있도록 한 것이다.That is, in the hybrid transmission of this embodiment, as shown in the figure, the first motor 1 and the second motor 7 are disposed at the front and rear sides of the transmission, respectively. The front cover 3, The oil for cooling supplied from the first cooling oil passage 5 of the front cover 3 is supplied to the rear side of the rear cover 3 through the third cooling oil passage 13 of the transmission case 13, The first oil supply nozzle 17 is provided in each of the oil passages so that the first motor 1 and the second motor 7 are supplied from the upper side to the second cooling oil passage 11, So that the overall cooling can be effectively performed.

상기 제1냉각오일유로(5)는 냉각에 필요한 오일을 공급받도록 오일펌프(19)와 연결되고, 상기 제2냉각오일유로(11)는 변속기케이스(13)의 상측에 형성된다.The first cooling oil passage 5 is connected to the oil pump 19 to receive oil required for cooling and the second cooling oil passage 11 is formed on the upper side of the transmission case 13.

상기 다수의 오일분사노즐(17) 중 상기 제1냉각오일유로(5)에 연결된 상기 오일분사노즐은 상기 제1모터(1)의 상측 측면을 향하여 오일이 분사되도록 구비되며, 상기 제2냉각오일유로(11)에 연결된 상기 오일분사노즐은 상기 제2모터(7)의 상측 측면을 향하여 오일이 분사되도록 구비된다.The oil injection nozzle connected to the first cooling oil passage (5) among the plurality of oil injection nozzles (17) is provided to inject oil toward the upper side surface of the first motor (1) The oil injection nozzle connected to the oil passage 11 is provided to inject oil toward the upper side of the second motor 7.

상기 제1모터(1)와 상기 제2모터(7)의 주변에 각각 위치하는 상기 변속기케이스(13)의 격벽(21) 내부에는 상기 제3냉각오일유로(15)에서 연장되는 격벽유로(23)가 더 구비되고, 상기 격벽유로(23)는 상기 제1모터(1) 또는 제2모터(7)의 상측 측면을 향하여 오일을 분사하도록 상기 격벽(21)에 구비된 격벽노즐(25)로 연통된다.The partition wall 21 of the transmission case 13 located around the first motor 1 and the second motor 7 is provided with a partition wall flow passage 23 extending from the third cooling oil passage 15 The partition wall flow passage 23 further includes a partition wall nozzle 25 provided in the partition wall 21 to spray oil toward the upper side of the first motor 1 or the second motor 7 .

따라서, 상기 오일펌프(19)에서 펌핑되는 오일은 상기 제1냉각오일유로(5)와 제2냉각오일유로(11) 및 제3냉각오일유로(15)를 따라 흐르게 됨과 아울러, 상기 격벽유로(23)로 흘러서, 상기 다수의 오일분사노즐(17) 및 상기 격벽노즐(23)을 통해 주로 제1모터(1)와 제2모터(7)의 상측으로 오일을 분사하게 된다.Accordingly, the oil pumped by the oil pump 19 flows along the first cooling oil passage 5, the second cooling oil passage 11, and the third cooling oil passage 15, 23 so that the oil is mainly sprayed to the upper side of the first motor 1 and the second motor 7 through the plurality of oil injection nozzles 17 and the partition wall nozzles 23.

상기한 바와 같이 제1모터(1)와 제2모터(7)의 상측으로 분사된 오일은 중력에 의해 하강하면서 나머지 부분까지도 효과적으로 냉각이 이루어질 수 있도록 한다.As described above, the oil injected to the upper side of the first motor 1 and the second motor 7 is lowered by the gravity force, so that the remaining part can be effectively cooled.

물론, 상기 오일펌프(19)에서 공급하는 오일의 유량 및 압력을 조절함에 의해 상기 제1모터와 제2모터에 필요한 냉각성능을 능동적으로 조절할 수 있다.Of course, by controlling the flow rate and pressure of the oil supplied from the oil pump 19, the cooling performance required for the first motor and the second motor can be actively adjusted.

도 1은 종래 기술에 의한 하이브리드 차량 변속기의 모터 냉각구조를 설명한 도면,1 is a view for explaining a motor cooling structure of a conventional hybrid vehicle transmission,

도 2는 본 발명에 따른 하이브리드 차량 변속기의 모터 냉각구조를 설명한 도면,2 is a view for explaining a motor cooling structure of a hybrid vehicle transmission according to the present invention,

도 3은 도 2의 요부 상세도이다.3 is a detailed view of the main part of Fig.

<도면의 주요 부분에 대한 부호의 간단한 설명> BRIEF DESCRIPTION OF THE DRAWINGS FIG.

1; 제1모터 3; 프론트커버One; A first motor 3; Front cover

5; 제1냉각오일유로 7; 제2모터5; A first cooling oil passage 7; The second motor

9; 리어커버 11; 제2냉각오일유로9; A rear cover 11; The second cooling oil passage

13; 변속기케이스 15; 제3냉각오일유로13; A transmission case 15; The third cooling oil passage

17; 오일분사노즐 19; 오일펌프17; An oil injection nozzle 19; Oil pump

21; 격벽 23; 격벽유로21; A partition wall 23; The barrier-

25; 격벽노즐25; Partition wall nozzle

Claims (4)

변속기의 전방에 배치된 제1모터를 감싸는 프론트커버에 형성된 제1냉각오일유로와;A first cooling oil passage formed in a front cover surrounding a first motor disposed in front of the transmission; 변속기의 후방에 배치된 제2모터를 감싸는 리어커버에 형성된 제2냉각오일유로와;A second cooling oil passage formed in a rear cover surrounding a second motor disposed rearward of the transmission; 상기 제1냉각오일유로와 제2냉각오일유로를 연결하도록 변속기케이스에 형성된 제3냉각오일유로와;A third cooling oil passage formed in the transmission case to connect the first cooling oil passage and the second cooling oil passage; 상기 제1냉각오일유로, 제2냉각오일유로 및 제3냉각오일유로와 각각 연통되어 상기 제1모터 또는 제2모터를 향해 오일을 분사하도록 형성된 다수의 오일분사노즐;A plurality of oil injection nozzles communicating with the first cooling oil passage, the second cooling oil passage, and the third cooling oil passage and configured to inject oil toward the first motor or the second motor, respectively; 을 포함하여 구성된 것Consisting of 을 특징으로 하는 하이브리드 차량 변속기의 모터 냉각구조.And the motor cooling structure of the hybrid vehicle transmission. 청구항 1에 있어서,The method according to claim 1, 상기 제1냉각오일유로는 냉각에 필요한 오일을 공급받도록 오일펌프와 연결되고;The first cooling oil passage is connected to the oil pump so as to receive the oil necessary for cooling; 상기 제2냉각오일유로는 상기 변속기케이스의 상측에 형성된 것The second cooling oil passage is formed on the upper side of the transmission case 을 특징으로 하는 하이브리드 차량 변속기의 모터 냉각구조.And the motor cooling structure of the hybrid vehicle transmission. 청구항 2에 있어서,The method of claim 2, 상기 제1냉각오일유로에 연결된 상기 오일분사노즐은 상기 제1모터의 상측 측면을 향하여 오일이 분사되도록 구비되며;The oil injection nozzle connected to the first cooling oil passage is provided so as to inject oil toward the upper side surface of the first motor; 상기 제2냉각오일유로에 연결된 상기 오일분사노즐은 상기 제2모터의 상측 측면을 향하여 오일이 분사되도록 구비된 것The oil injection nozzle connected to the second cooling oil passage is provided so as to inject oil toward the upper side surface of the second motor 을 특징으로 하는 하이브리드 차량 변속기의 모터 냉각구조.And the motor cooling structure of the hybrid vehicle transmission. 청구항 3에 있어서,The method of claim 3, 상기 제1모터와 상기 제2모터의 주변에 각각 위치하는 상기 변속기케이스의 격벽 내부에는 상기 제3냉각오일유로에 연장되는 격벽유로가 더 구비되고;A partition wall flow path extending to the third cooling oil flow passage is further provided in a partition wall of the transmission case located around the first motor and the second motor; 상기 격벽유로는 상기 제1모터 또는 제2모터의 상측 측면을 향하여 오일을 분사하도록 상기 격벽에 구비된 격벽노즐로 연통된 것Wherein the partition wall flow path communicates with a partition wall nozzle provided on the partition wall so as to spray oil toward the upper side of the first motor or the second motor 을 특징으로 하는 하이브리드 차량 변속기의 모터 냉각구조.And the motor cooling structure of the hybrid vehicle transmission.
KR20090103980A 2009-10-30 2009-10-30 Motor Cooling Structure for Transmission of Hybrid Vehicle KR101509793B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2837198B2 (en) * 1989-11-07 1998-12-14 アイシン・エィ・ダブリュ株式会社 Cooling device for vehicle motor
JP3385373B2 (en) * 1994-10-31 2003-03-10 アイシン・エィ・ダブリュ株式会社 Motor cooling circuit
JP2003324901A (en) 2002-04-26 2003-11-14 Nippon Soken Inc Motor
KR20090059816A (en) * 2007-12-07 2009-06-11 현대자동차주식회사 Cooling apparatus for hybrid vehicle motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2837198B2 (en) * 1989-11-07 1998-12-14 アイシン・エィ・ダブリュ株式会社 Cooling device for vehicle motor
JP3385373B2 (en) * 1994-10-31 2003-03-10 アイシン・エィ・ダブリュ株式会社 Motor cooling circuit
JP2003324901A (en) 2002-04-26 2003-11-14 Nippon Soken Inc Motor
KR20090059816A (en) * 2007-12-07 2009-06-11 현대자동차주식회사 Cooling apparatus for hybrid vehicle motor

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