KR20010036663A - Water Cooling Structure of Electric Motors provided with Solenoid pipes - Google Patents

Water Cooling Structure of Electric Motors provided with Solenoid pipes Download PDF

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Publication number
KR20010036663A
KR20010036663A KR1019990043769A KR19990043769A KR20010036663A KR 20010036663 A KR20010036663 A KR 20010036663A KR 1019990043769 A KR1019990043769 A KR 1019990043769A KR 19990043769 A KR19990043769 A KR 19990043769A KR 20010036663 A KR20010036663 A KR 20010036663A
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KR
South Korea
Prior art keywords
cooling water
motor
rotor
cooling
frame
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Application number
KR1019990043769A
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Korean (ko)
Inventor
이갑재
권중록
박정태
이정일
이종인
김기찬
이준엽
Original Assignee
김형벽
현대중공업 주식회사
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Priority to KR1019990043769A priority Critical patent/KR20010036663A/en
Publication of KR20010036663A publication Critical patent/KR20010036663A/en

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    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • 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
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE: A water-cooled structure of a motor having a solenoid type pipe is provided to improve the cooling efficiency by circulating the cooling water through a cooling water passage when the motor is driven. CONSTITUTION: A shaft(1) supports a rotor(2). A rotor(2) is rotated and supported by the shaft(1). A stator(3) is located so as to be opposite to the rotor(2). A frame(4) presses the stator(3) opposite to the rotor(2). A solenoid type water-cooled passage(5) through which the cooling water is circulated is formed in the interior of the frame(4). An introducing opening(6) and a discharging opening(7) are formed in the water-cooled passage(5) to introduce and discharge the cooling water. If a power source is applied to drive the motor, the rotor(2) supported by the shaft(1) is rotated at a high speed. When the motor is rotated at a high speed, the cooling water cools the motor.

Description

솔레노이드형 파이프가 형성된 전동기의 수냉식 냉각구조{Water Cooling Structure of Electric Motors provided with Solenoid pipes}Water Cooling Structure of Electric Motors provided with Solenoid pipes}

본 발명은 전기자동차를 구동시키기 위한 고출력 전동기의 수냉식 냉각구조에 관한 것으로, 특히 전동기의 프레임에 솔레노이드형 파이프가 내장되도록 냉각수로를 형성시켜 전동기를 구동시 프레임에 형성된 솔레노이드형 파이프를 통해 냉각수가 순환되므로서 냉각효율을 극대화시키면서 출력밀도가 향상되도록 한 솔레노이드형 파이프가 내장된 전동기의 수냉식 냉각구조에 관한 것이다.The present invention relates to a water-cooled cooling structure of a high-power motor for driving an electric vehicle, and in particular, the cooling water circulates through the solenoid pipe formed in the frame when the motor is driven by forming a cooling water path so that the solenoid pipe is embedded in the frame of the motor. Therefore, the present invention relates to a water-cooled cooling structure of a motor in which a solenoid-type pipe is built to maximize the cooling efficiency and to improve output density.

일반적인 전기자동차의 전동기 구조는 도 1에 도시된 바와 같이, 회전자(2)를 지지하기 위한 샤프트(1)와, 상기 샤프트(1)에 의해 지지되어 회전하는 회전자(2)와, 상기 회전자(2)와 대향되게 위치하여 고정된 고정자(3)와, 상기 회전자(2)에 대향되게 위하한 고정자(3)를 압입하여 보호지지하는 프레임(4)으로 구성된 것으로,As shown in FIG. 1, a general electric motor structure of an electric vehicle includes a shaft 1 for supporting the rotor 2, a rotor 2 supported and rotated by the shaft 1, and the rotor. It consists of a stator (3) positioned to face the electrons (2) and the frame (4) for pressing and protecting the stator (3) facing the rotor (2) by pressing

전기자동차를 구동시키기 위해서는 고출력의 전동기를 필요로 하는 바 상기 고출력의 전동기를 구동시키기 위해 전원을 인가하게 되면 프레임(4)에 체결고정된 고정자(3)에 대향되도록 위치한 회전자(2)는 상기 고정자(3)에서 발생하는 자력에 의해 고정자(3)의 내측에서 샤프트(1)에 지지된 상태에서 고속으로 회전하게 된다.In order to drive an electric vehicle, a high power electric motor is required. When power is applied to drive the high power electric motor, the rotor 2 positioned to face the stator 3 fastened and fixed to the frame 4 is The magnetic force generated in the stator 3 rotates at a high speed while being supported by the shaft 1 inside the stator 3.

종래의 전동기 냉각구조는 전동기의 출력밀도를 향상시키기 위해 대개 냉각방식을 바람에 의해 풍냉식으로 구성하거나, 또는 냉각수를 순환시켜 냉각시키는 방식을 이용하였다.In the conventional motor cooling structure, in order to improve the power density of the electric motor, a cooling method is generally configured by wind-cooling by wind, or a cooling method by circulating cooling water is used.

그러나 종래 전동기의 냉각방식이 수냉식일 경우 냉각수를 순환시키기 위한 냉각수로를 형성해야만 하는 바, 상기 냉각수로를 형성하기가 어렵고 냉각수로를 형성하였을 경우 즉, 전동기의 내부에 자켓형태의 수냉식 냉각구조로서 방열면적이 작을 경우 냉각수의 유속이 원활하지 못하여 냉각성능이 저하되며 상기 냉각수로를 형성할 경우 가스켓 부분에도 냉각수로를 형성하여야 하므로 가스켓부분에서 누수가 발생할 우려가 있고, 상기 방열면적을 넓혀 냉각수의 유속을 원활하게 하여 냉각성능을 향상시켰으나 가스켓부분에서는 계속적으로 누수가 발생될 우려가 높은 문제점이 있었다.However, when the cooling method of the conventional motor is water-cooled, a cooling water path for circulating the cooling water must be formed. When the cooling water path is difficult to form and the cooling water path is formed, that is, as a jacket-type water cooling cooling structure inside the motor. If the heat dissipation area is small, the cooling water flow rate is not smooth and cooling performance is deteriorated. When the cooling water passage is formed, a cooling water passage should be formed in the gasket part, so there is a risk of leakage in the gasket portion. The cooling performance was improved by smoothing the flow rate, but there was a high risk of leaks continuously occurring in the gasket portion.

본 발명은 이와 같은 종래의 문제점을 해결하기 위하여, 프레임의 내부에 솔레노이드형 파이프형태의 냉각수로를 형성시켜 상기 프레임의 내부에 냉각수를 공급시 솔레노이드형 파이프형태의 냉각수로에 의해 냉각효율이 극대화되므로서 전기자동차를 구동시키기 위한 전동기의 고출력화를 향상시킬 수 있도록 하고, 또한 냉각수로가 프레임의 내부에만 형성되어 있으므로 가스켓이 불필요하기 때문에 냉각수의 누수가 방지되어 고출력 전동기의 안전성이 극대화되도록 한 것으로, 첨부된 도면에 의하여 본 발명의 구성 및 작용효과를 설명하면 다음과 같다.In order to solve the conventional problems, the present invention forms a coolant passage in the form of a solenoid pipe in the frame so that the cooling efficiency is maximized by the coolant in the form of a solenoid pipe when supplying the coolant in the frame. Therefore, it is possible to improve the high output of the motor for driving the electric vehicle, and since the cooling water path is formed only inside the frame, the gasket is unnecessary, so that the leakage of the cooling water is prevented, thereby maximizing the safety of the high power motor. Referring to the configuration and effect of the present invention by the accompanying drawings as follows.

도 1은 일반적인 전동기의 구조를 보인 단면도.1 is a cross-sectional view showing the structure of a general electric motor.

도 2는 본 발명 솔레노이드형 파이프가 형성된 전동기의 수냉식 냉각구조를 보인 단면도.Figure 2 is a cross-sectional view showing a water-cooled cooling structure of the electric motor is formed solenoid pipe of the present invention.

도 3은 본 발명 솔레노이드형 파이프가 형성된 전동기의 수냉식 냉각구조를 보인 측단면도.Figure 3 is a side cross-sectional view showing a water-cooled cooling structure of the electric motor formed solenoid pipe of the present invention.

회전자(2)를 지지하기 위한 샤프트(1)와, 상기 샤프트(1)에 의해 지지되어 회전하는 회전자(2)와, 상기 회전자(2)와 대향되게 위치하여 고정된 고정자(3)와, 상기 회전자(2)에 대향되게 위치한 고정자(3)를 압입하여 보호지지하는 프레임(4)으로 구성된 전기자동차의 고출력 전동기에 있어서,A shaft 1 for supporting the rotor 2, a rotor 2 supported and rotated by the shaft 1, and a stator 3 positioned and fixed opposite to the rotor 2. And, in the high-power motor of the electric vehicle composed of a frame (4) for pressing and protecting the stator (3) located opposite to the rotor (2),

프레임(4)은 내부에 냉각수가 순환되어 냉각효율이 극대화되도록 솔레노이드형 파이프형태의 냉각수로(5)가 형성되고, 냉각수로(5)에 냉각수가 유입 및 배출되도록 프레임(4)에 유입구(6)와 배출구(7)가 형성되도록 구성된 것이다.The frame 4 has a coolant passage 5 in the form of a solenoid pipe so as to maximize the cooling efficiency by circulating the coolant therein, and the inlet 6 in the frame 4 so that the coolant flows into and out of the coolant passage 5. ) And the outlet 7 is formed.

이와 같이 구성된 본 발명의 작용효과는 도 2와 도 3에 도시된 바와 같이, 전동기를 구동시키기 위해 전원을 인가하게 되면, 고정자(3)에 대향되게 위치한 샤프트(1)에 지지된 회전자(2)가 고속으로 회전하게 되는 바, 상기 회전자(2)의 고속회전시 열이 발생하게 되므로 이를 냉각시켜야만 전동기의 출력밀도가 향상된다.2 and 3, when the power is applied to drive the electric motor, the rotor 2 supported by the shaft 1 positioned opposite to the stator 3 is applied. Bar rotates at high speed, so heat is generated during the high speed rotation of the rotor 2, so that the output density of the electric motor is improved only by cooling it.

따라서, 전동기를 냉각시키기 위해 고정자(3)를 압입하여 지지하는 프레임(4)의 내부에는 냉각수가 순화되도록 냉각수로(5)가 형성되어 있고 상기 냉각수로(5)에 냉각수가 순환되도록 외부에서 냉각수가 유입되는 유입구(6)와, 순화된 냉각수가 외부로 배출되도록 배출구(7)가 프레임(4)에 형성되어 있으므로, 전동기를 구동시 프레임(4)의 내부에 형성된 냉각수로(5)에 의해 전동기의 냉각효율을 극대화시킬 수 있게 된다.Therefore, a cooling water passage 5 is formed inside the frame 4 in which the stator 3 is press-fitted and supported to cool the electric motor, and the cooling water is circulated outside so that the cooling water is circulated in the cooling water passage 5. Since the inlet 6 through which the gas is introduced and the outlet 7 are formed in the frame 4 so that the purified coolant is discharged to the outside, the cooling water passage 5 formed inside the frame 4 when the electric motor is driven. The cooling efficiency of the motor can be maximized.

즉, 전동기를 구동시 프레임(4)에 형성된 유입구(6)를 통해 냉각수가 계속적으로 유입되면 내부에 형성된 솔레노이드형 파이프형태의 냉각수로(5)에 냉각수가 계속적으로 순환되어 배출구(7)를 통해 순환된 냉각수가 계속적으로 배출되므로서 전동기 구동에 의한 회전자(2)의 회전시 발생한 열을 프레임(4)의 내부에서 균등하게 냉각시키므로서 전동기의 출력밀도를 향상시킬 수 있게 된다.That is, when the coolant is continuously introduced through the inlet 6 formed in the frame 4 when the motor is driven, the coolant is continuously circulated through the coolant passage 5 of the solenoid pipe type formed therein and discharged through the outlet 7. Since the circulated coolant is continuously discharged, heat generated during the rotation of the rotor 2 by the driving of the motor is evenly cooled in the inside of the frame 4, thereby improving the output density of the motor.

그리고, 프레임(4)의 내부에 형성된 냉각수로(5)에 의해 전동기에서 발생하는 열을 냉각시키므로서 프레임(4)의 내부에 유입된 냉각수의 동파방지를 위해 냉각수와 부동액을 혼합할 때 혼합비율은 냉각제 전체의 냉각성능의 변화에 따라 적당하게 혼합할 수 있게 된다.In addition, the mixing ratio when the cooling water and the antifreeze is mixed to prevent freezing of the cooling water introduced into the frame 4 while cooling the heat generated from the electric motor by the cooling water passage 5 formed inside the frame 4. Silver can be mixed suitably according to the change of the cooling performance of the whole coolant.

이상에서 설명한 바와 같이, 솔레노이드형 파이프형태의 냉각수로를 프레임의 내부에만 형성시켜 전동기 구동시 냉각수가 냉각수로를 통해 순환되므로서 전동기 구동시 발생하는 열을 쉽게 냉각시키므로서 냉각효율이 향상되어 전동기의 고밀도 출력을 극대화 시킬 수 있으며, 상기 냉각수가 순환되는 냉각수로가 프레임에만 형성되어 있으므로 가스켓이 불필요하기 때문에 냉각수 순환시 누수현상이 발생하지 않으므로서 전동기의 신뢰도가 향상되는 효과가 있다.As described above, the solenoid pipe-type cooling water path is formed only inside the frame so that the cooling water is circulated through the cooling water path when the motor is driven, thereby easily cooling the heat generated when the motor is driven, thereby improving the cooling efficiency of the motor. Since the high-density output can be maximized and the cooling water passage through which the cooling water is circulated is formed only in the frame, gaskets are unnecessary, so that leakage of the cooling water does not occur, thereby improving reliability of the motor.

Claims (1)

샤프트와, 상기 샤프트에 의해 지지되어 회전하는 회전자와, 상기 회전자와 대향되게 위치하여 고정된 고정자와, 상기 회전자에 대향되게 위치한 고정자를 압입하여 보호지지하는 프레임으로 구성된 전기자동차의 고출력 전동기에 있어서,A high output electric motor of an electric vehicle comprising a shaft, a rotor supported and rotated by the shaft, a stator positioned and fixed to face the rotor, and a frame in which the stator positioned to face the rotor is press-fitted and protected. To 프레임은 내부에 냉각수가 순환되어 냉각효율이 극대화되도록 솔레노이드형 파이프형태의 냉각수로가 형성되고, 냉각수로에 냉각수가 유입 및 배출되도록 프레임에 유입구와 배출구가 형성된 것을 특징으로 하는 솔레노이드형 파이프가 형성된 전동기의 수냉식 냉각구조.The frame is formed with a solenoid pipe-type cooling water path for maximizing the cooling efficiency by circulating the cooling water therein, and an inlet and an outlet hole are formed in the frame so that the cooling water flows in and out of the cooling water path. Water-cooled cooling structure.
KR1019990043769A 1999-10-11 1999-10-11 Water Cooling Structure of Electric Motors provided with Solenoid pipes KR20010036663A (en)

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KR100475611B1 (en) * 2002-09-17 2005-03-10 정신검 Manufacturing method of water cooled motor frame
KR100940606B1 (en) * 2007-12-31 2010-02-05 주식회사 효성 Cooling device for electric motor
WO2011152594A1 (en) * 2010-06-04 2011-12-08 주식회사 메트로테크 Motor cooling device
CN102619610A (en) * 2011-01-26 2012-08-01 奇鋐科技股份有限公司 Motor water cooling structure and manufacture method
KR20160143427A (en) 2015-06-05 2016-12-14 엘지전자 주식회사 Case for electric motor and manufacturing method thereof, electric motor with case for electric motor
CN113675986A (en) * 2021-09-02 2021-11-19 重庆磊飞机械制造有限责任公司 Water-cooled heat dissipation motor shell

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JPH0272658U (en) * 1988-11-22 1990-06-04
JPH0644378U (en) * 1992-11-20 1994-06-10 株式会社明電舎 Rotating electric machine
JPH07111759A (en) * 1993-10-08 1995-04-25 Showa Alum Corp Water-cooled motor housing
JPH0739274U (en) * 1993-12-21 1995-07-14 株式会社安川電機 Rotating electric machine cooling device

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JPS6447560U (en) * 1987-09-17 1989-03-23
JPH01131256U (en) * 1988-03-01 1989-09-06
JPH0272658U (en) * 1988-11-22 1990-06-04
JPH0644378U (en) * 1992-11-20 1994-06-10 株式会社明電舎 Rotating electric machine
JPH07111759A (en) * 1993-10-08 1995-04-25 Showa Alum Corp Water-cooled motor housing
JPH0739274U (en) * 1993-12-21 1995-07-14 株式会社安川電機 Rotating electric machine cooling device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475611B1 (en) * 2002-09-17 2005-03-10 정신검 Manufacturing method of water cooled motor frame
KR100940606B1 (en) * 2007-12-31 2010-02-05 주식회사 효성 Cooling device for electric motor
WO2011152594A1 (en) * 2010-06-04 2011-12-08 주식회사 메트로테크 Motor cooling device
CN102619610A (en) * 2011-01-26 2012-08-01 奇鋐科技股份有限公司 Motor water cooling structure and manufacture method
KR20160143427A (en) 2015-06-05 2016-12-14 엘지전자 주식회사 Case for electric motor and manufacturing method thereof, electric motor with case for electric motor
CN113675986A (en) * 2021-09-02 2021-11-19 重庆磊飞机械制造有限责任公司 Water-cooled heat dissipation motor shell
CN113675986B (en) * 2021-09-02 2023-01-03 佛山市顺德区固得力电机有限公司 Water-cooled heat dissipation motor shell

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