KR100193431B1 - Electric Motor Motor - Google Patents

Electric Motor Motor Download PDF

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Publication number
KR100193431B1
KR100193431B1 KR1019960056766A KR19960056766A KR100193431B1 KR 100193431 B1 KR100193431 B1 KR 100193431B1 KR 1019960056766 A KR1019960056766 A KR 1019960056766A KR 19960056766 A KR19960056766 A KR 19960056766A KR 100193431 B1 KR100193431 B1 KR 100193431B1
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KR
South Korea
Prior art keywords
main body
stator
coil
motor
cooling water
Prior art date
Application number
KR1019960056766A
Other languages
Korean (ko)
Other versions
KR19980037942A (en
Inventor
이성택
Original Assignee
오상수
만도기계주식회사
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Application filed by 오상수, 만도기계주식회사 filed Critical 오상수
Priority to KR1019960056766A priority Critical patent/KR100193431B1/en
Publication of KR19980037942A publication Critical patent/KR19980037942A/en
Application granted granted Critical
Publication of KR100193431B1 publication Critical patent/KR100193431B1/en

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Classifications

    • 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
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • 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
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
    • 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

Abstract

본 발명은 전기자동차용 모타에 관한 것으로, 더 상세하게는 모타의 고정자 및 코일과 접촉되도록 냉각수관을 설치하여 모타에서 발생되는 열을 효율적으로 방열시킬 수 있는 전기자동차용 모타에 관한 것이다.The present invention relates to a motor for an electric vehicle, and more particularly, to a motor for an electric vehicle capable of efficiently dissipating heat generated in the motor by installing a coolant pipe to contact the stator and the coil of the motor.

본 발명은, 중공체(中空體)의 본체, 상기 본체에 압입,고정되며 코일이 감겨있는 고정자, 상기 고정자의 내부에 설치되며 상기 코일에 전류가 공급되면 기전력에 의하여 회전되어 차량의 변속기를 구동시키는 회전자, 상기 본체의 전,후면에 결합되는 전,후면커버, 상기 고정자의 양측면에 마련되되,코일 감기게 마련되어 고정자와 코일에서 발생되는 열을 냉각시키는 제1,2냉각수관, 상기 고정자와 접촉되게 본체의 내주면에 마련되어 상기 제1,2냉각수관을 연통시킴과 동시에 상기 고정자와 코일을 냉각시키는 연결관, 상기 본체의 외주면에 마련되어 제2냉각수관을 통하여 유입된 냉각수를 외부로 배출하는 배출관을 구비하는 구성이다.The present invention is a main body of a hollow body, a stator press-fitted to the main body is fixed, the coil is wound, installed inside the stator, when the current is supplied to the coil is rotated by electromotive force to drive the transmission of the vehicle The rotor, the front and rear cover coupled to the front and rear of the main body, provided on both sides of the stator, the coil winding is provided to cool the heat generated from the stator and the coil, the first and second cooling water pipes, A connection pipe provided on the inner circumferential surface of the main body so as to be in contact with each other and communicating the first and second cooling water pipes and cooling the stator and the coil, and a discharge pipe provided on the outer circumferential surface of the main body to discharge the cooling water introduced through the second coolant pipe to the outside It is a configuration having.

Description

전기자동차용 모타Electric Motor Motor

본 발명은 전기자동차용 모타에 관한 것으로, 더 상세하게는 모타의 고정자 및 코일과 접촉되도록 냉각수관을 설치하여 모타에서 발생되는 열을 효율적으로 방열시킬 수 있는 전기자동차용 모타에 관한 것이다.The present invention relates to a motor for an electric vehicle, and more particularly, to a motor for an electric vehicle capable of efficiently dissipating heat generated in the motor by installing a coolant pipe to contact the stator and the coil of the motor.

환경오염과 지구온난화 등과 같은 공해의 문제점이 대두되면서, 디이젤자동차나 가솔린자동차 대신 무공해 자동차인 전기자동차에 대한 관심이 고조되었다. 그래서 오늘날에는 전기자동차가 거의 실용화단계에 도달하게 되었다.As pollution problems such as environmental pollution and global warming have emerged, interest in electric cars, which are pollution-free cars instead of diesel cars or gasoline cars, has increased. So today, electric vehicles have almost reached the level of practical use.

전기자동차용 모타는 차량의 휠과 연결된 변속기의 일측에 설치되어 변속기측과 결합되어 차량을 구동시킨다. 이때 모타에서는 고온의 열이 발생되는데, 이 열을 냉각시키지 않으면 이 열로 인하여 모타는 자기의 기능을 수행하지 못하게 된다.The motor for the electric vehicle is installed at one side of the transmission connected to the wheel of the vehicle and is coupled to the transmission side to drive the vehicle. At this time, high temperature heat is generated in the motor. If the heat is not cooled, the heat prevents the motor from performing its function.

도 1은 일반적인 전기자동차용 모타의 분해 사시도로서, 이를 설명한다.1 is an exploded perspective view of a motor for a general electric vehicle, which will be described.

중공체(中空體)의 본체(10)에 고정자(11)가 압입,설치되고 고정자(11)에는 코일(12)이 감겨있다. 이 고정자(11) 내에는 회전자(13)가 마련되는데,회전자는 변속기측과 연결된다. 그리고 본체(10)의 전,후면에는 전,후면커버(14a,14b)가 각각 결합된다. 차량의 적소에 설치된 배터리에서 고정자에 감긴 코일로(12)로 전류가 공급되면 기전력에 의하여 회전자가 회전되어 차량의 휠을 구동시키는 변속기를 작동시키는데, 이때 모타에는 고온의 열이 발생된다. 이 열을 냉각시키기 위하여 본체(10) 및 전,후면커버(14a,14b)에는 냉각수가 유입되어 순환되는 냉각수 유로(15)가 형성되어 있다. 즉, 전면커버의 상측에 형성된 유입구(16a)에서 시작되어 본체 및 후면커버를 지나서 다시 전면커버의 또 다른 상측에 형성된 배출구(16b)로 배출되는 복잡한 유로가 형성되어 있다.The stator 11 is press-fitted and installed in the main body 10 of the hollow body, and the coil 12 is wound around the stator 11. In the stator 11, a rotor 13 is provided, which is connected to the transmission side. The front and rear covers 14a and 14b are coupled to the front and rear surfaces of the main body 10, respectively. When a current is supplied from the battery installed in place of the vehicle to the coil 12 wound around the stator, the rotor is rotated by electromotive force to operate a transmission that drives the wheel of the vehicle, where high temperature heat is generated in the motor. In order to cool this heat, a cooling water flow path 15 through which cooling water flows is formed in the main body 10 and the front and rear covers 14a and 14b. That is, a complicated flow path is formed which starts at the inlet 16a formed on the upper side of the front cover, passes through the main body and the rear cover, and is discharged to the outlet 16b formed on the upper side of the front cover again.

그러나 상기와 같은 구조의 종래 모타는 본체 및 전,후면커버에 각각 형성된 유로가 밀봉되어 연통되어야 한다. 그러나 완전한 밀봉상태를 유지하도록 결합하기가 어려운 단점이 있었다.However, the conventional motor of the above structure should be in communication with each other the flow path formed in the main body and the front, rear cover. However, there is a disadvantage in that it is difficult to combine to maintain a completely sealed state.

또한,완전한 밀봉을 하기 위하여는 별도의 패킹재가 필요하므로 분해,조립의 공정이 복잡하고 원가가 상승되는 단점이 있었다.In addition, since a separate packing material is required for complete sealing, the process of disassembling and assembling is complicated and costs are increased.

또한,실제로 발열되는 발열체는 고정자와 코일인데 고정자와 코일에 냉각수가 직접 접촉되는 것이 아니라 본체를 매체로 간접적인 냉각방식을 취하므로 그 냉각성능이 저하되는 단점이 있었다.In addition, the heating element that is actually generated is a stator and a coil, but the cooling water is not in direct contact with the stator and the coil, but the indirect cooling method to take the main body as a medium has a disadvantage that the cooling performance is reduced.

본 발명은 상기의 단점을 해소하기 위하여 안출된 것으로, 본 발명의 목적은 고정자 및 코일과 직접 접촉되는 냉각수관을 설치하여 고정자 및 코일을 직접 냉각시키도록 하므로서 냉각효율을 향상시킬 수 있는 전기자동자용 모타를 제공함에 있다.The present invention has been made in order to solve the above disadvantages, an object of the present invention is to install a coolant pipe in direct contact with the stator and the coil to directly cool the stator and the coil for the electric car that can improve the cooling efficiency In providing a motor.

본 발명의 다른 목적은 냉각수가 유입,토출되는 별도의 냉각수관이 모타에 마련되므로 복잡한 유로를 형성할 필요가 없는,그리하여 그 제작공정이 간단한 전기자동차용 모타를 제공함에 있다.Another object of the present invention is to provide a motor for an electric vehicle that does not need to form a complicated flow path because a separate coolant pipe into which the coolant flows in and out is provided in the motor.

본 발명에 또 다른 목적은,냉각관의 연결부위가 적도록 마련하여 밀봉부재가 적게 소요되는 대단히 경제적인 전기자동차용 모타를 제공함에 있다.Still another object of the present invention is to provide a motor for the electric vehicle which is very economical, which requires less connection parts of the cooling tube and requires less sealing member.

도 1은 일반적인 전기자동차용 모타의 분해 사시도,1 is an exploded perspective view of a motor for a general electric vehicle,

도 2는 본 발명에 따른 전기자동차용 모타의 분해 사시도,2 is an exploded perspective view of a motor for an electric vehicle according to the present invention;

도 3은 도 2의 Ⅴ-Ⅴ선 단면도.3 is a cross-sectional view taken along the line VV of FIG. 2.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

51:고정자, 52:코일, 53:회전자, 61,63:제1,2냉각수관,51: stator, 52: coil, 53: rotor, 61, 63: first and second cooling water pipe,

65:연결관, 67:배출관, 71,72:전,후면커버, 100:본체,65: connector, 67: discharge pipe, 71, 72: front, rear cover, 100: the body,

101:관통홈, 102:안치로, 103:결합로, 104:삽입홈.101: through groove, 102: inner furnace, 103: coupling furnace, 104: insertion groove.

상기 목적을 달성하기 위한 본 발명은, 중공체(中空體)의 본체, 상기 본체에 압입,고정되며 코일이 감겨있는 고정자, 상기 고정자의 내부에 설치되며 상기 코일에 전류가 공급되면 기전력에 의하여 회전되어 차량의 변속기를 구동시키는 회전자, 상기 본체의 전,후면에 결합되는 전,후면커버, 상기 고정자의 양측면에 마련되되,코일 감기게 마련되어 고정자와 코일에서 발생되는 열을 냉각시키는 제1,2냉각수관, 상기 고정자와 접촉되게 본체의 내주면에 마련되어 상기 제1,2냉각수관을 연통시킴과 동시에 상기 고정자와 코일을 냉각시키는 연결관, 상기 본체의 외주면에 마련되어 제2냉각수관을 통하여 유입된 냉각수를 외부로 배출하는 배출관을 구비하는 구성이다.The present invention for achieving the above object, the body of the hollow body (hollow body), the stator is pressed and fixed to the main body, the coil is wound, installed inside the stator and rotated by electromotive force when the current is supplied to the coil And a rotor for driving the transmission of the vehicle, the front and rear covers coupled to the front and rear surfaces of the main body, and provided on both sides of the stator, the coils being wound to cool the heat generated from the stator and the coil. Cooling water pipes are provided on the inner circumferential surface of the main body to be in contact with the stator to communicate with the first and second cooling water pipes and to cool the stator and the coils, and cooling water introduced through the second cooling water pipes provided on the outer circumferential surface of the main body. It is a configuration having a discharge pipe for discharging the outside.

이하 첨부한 도면에 의하여 본 발명에 따른 전기자동차용 모타의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the motor for an electric vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 전기자동차용 모타는 차량의 휠과 연결된 변속기와 연결되어 변속기를 작동시키는데, 도 2,3을 참조하여 설명한다.The motor for an electric vehicle according to the present invention is connected to a transmission connected to a wheel of a vehicle to operate a transmission, which will be described with reference to FIGS. 2 and 3.

본체(100)가 마련된다. 상기 본체(100)는 전,후면이 개구된 중공체(中空體)로 마련되며 본체(100)의 내부에는 고정자(51)가 압입,결합된다. 상기 고정자(51)의 내주면에는 치(齒)(51a)가 형성되는데,상기 치(51a)에는 코일(52)이 감긴다. 상기 고정자(51)의 내부에는 회전자(53)가 마련되는데,상기 회전자는 변속기측(더 상세하게는 플라이휠)과 연결된다. 그리고 본체(100)의 전,후면에는 전,후면커버(71,72)가 각각 결합되는데,상기 전후면커버에는 회전자를 지지하는 베어링(미도시) 등이 마련된다. 차량의 적소에 설치된 배터리에서 고정자에 감긴 코일(52)로 전류가 공급되면 기전력이 발생하고 이 기전력에 의하여 회전자가 회전된다. 회전자가 회전되면 차량의 휠을 구동시키는 변속기를 구동시켜서 차량이 구동되는 것이다.The main body 100 is provided. The main body 100 is provided as a hollow body having an open front and rear surfaces, and the stator 51 is press-fitted and coupled to the inside of the main body 100. Teeth 51a are formed on the inner circumferential surface of the stator 51, and coils 52 are wound around the teeth 51a. The rotor 53 is provided inside the stator 51, and the rotor is connected to a transmission side (more specifically, a flywheel). The front and rear covers 71 and 72 are coupled to the front and rear surfaces of the main body 100, respectively, and the front and rear covers are provided with bearings (not shown) for supporting the rotor. When current is supplied from the battery installed in the vehicle to the coil 52 wound around the stator, electromotive force is generated and the rotor is rotated by the electromotive force. When the rotor is rotated, the vehicle is driven by driving a transmission that drives the wheel of the vehicle.

이때 모타에서는 고온의 열이 발생되는데, 본 발명에 따른 모타에는 열이 실제로 발생되는 발열체인 고정자(51)와 코일(52)에 직접,접촉되면서 고정자와 코일을 냉각시키는 냉각장치가 마련된다.At this time, the high temperature heat is generated in the motor, and the motor according to the present invention is provided with a cooling device for cooling the stator and the coil while being in direct contact with the stator 51 and the coil 52, which are heat generating elements.

상기 냉각장치는 전,후면커버(71,72)와 본체(100) 사이에 각각 설치되는 제1,2냉각수관(61,63)과 상기 제1,2냉각수관을 연통시켜주는 연결관(65)과 냉각수가 외부로 배출되도록 안내하는 배출관(67)으로 마련된다.The cooling device is connected between the first and second cooling water pipes 61 and 63 and the first and second cooling water pipes respectively installed between the front and rear covers 71 and 72 and the main body 100. ) And a discharge pipe 67 for guiding the cooling water to the outside.

상기 제1냉각수관(61)은 일측이 절개되어 단면(斷面)을 가지는 고리 형태로 마련된다. 즉,고리형태의 몸체(61a)와 상기 몸체의 일단면(斷面)에서 몸체의 외측으로 절곡되어 냉각수가 유입되는 유입부(61b)와 타단면에서 몸체의 외측으로 절곡되어 상기 연결관(65)의 일측이 결합되는 결합부(61c)로 마련된다. 그리고 상기 유입부(61b)는 몸체의 외측으로 돌출되게 연장된다.One side of the first cooling water pipe 61 is provided in a ring shape having a cross section. That is, the ring-shaped body (61a) and one end of the body is bent to the outside of the body and the inlet portion (61b) and the other end surface is bent to the outside of the body in the cooling water flow in the connecting pipe (65) One side of the coupling is provided as a coupling portion (61c). And the inlet 61b is extended to protrude to the outside of the body.

상기 제2냉각수관(63)은 제1냉각수관(61)과 동일한 형상인 일측이 절개되어 단면(斷面)을 가지는 고리 형태로 마련된다. 즉,고리형태의 몸체(63a)와 상기 몸체의 일단면에서 외측으로 연장되어 상기 연결관(65)의 타측과 연결되는 제1연통부(63b)와 몸체의 타단면에서 외측으로 연장되어 상기 배출관(67)의 일측과 연결되는 제2연통부(63c)로 마련된다.The second cooling water pipe 63 is provided in a ring shape having a cross section with one side having the same shape as that of the first cooling water pipe 61. That is, the body 63a having a ring shape and the first communication portion 63b extending outward from one end surface of the body and connected to the other side of the connection tube 65 and extending outward from the other end surface of the body are discharge pipes. It is provided with a second communication portion (63c) connected to one side of (67).

상기 제1,2냉각수관의 몸체(61a,63a)는 고정자(51)의 외측면과 접촉되고 각각에 코일(52)이 감긴다. 그리고 상기 몸체(61a,63a)의 외경은 상기 고정자의 외경 동일한 크기로 마련되되,그 내경은 고정자의 내주면에 형성된 치(齒)(51a)를 덮지않도록 마련된다.The bodies 61a and 63a of the first and second cooling water pipes are in contact with the outer surface of the stator 51 and the coils 52 are wound around each other. And the outer diameter of the body (61a, 63a) is provided to the same size as the outer diameter of the stator, the inner diameter is provided so as not to cover the teeth (51) formed on the inner peripheral surface of the stator.

상기 연결관(65)은 양단이 동일방향으로 절곡된 직선형으로 형성된다. 상기 연결관의 일측은 상기 결합부(61c)와 연통되는 제1연결부(65a)로 마련되고 타측은 상기 제1연통부(63b)와 연통되는 제2연결부(65b)로 마련된다.The connecting tube 65 is formed in a straight line bent in both ends in the same direction. One side of the connecting pipe is provided with a first connecting portion 65a communicating with the coupling portion 61c, and the other side is provided with a second connecting portion 65b communicating with the first communicating portion 63b.

상기 배출관(67)은 양단이 반대방향으로 절곡된 직선형으로 형성된다. 상기 배출관은 일단은 상기 제2연통부(65c)와 연통되는 제1배출부(67a)로 마련되고 타단은 상기 본체 외측으로 돌출되는 제2배출부(67b)로 마련된다.The discharge pipe 67 is formed in a straight line bent at both ends in the opposite direction. One end of the discharge pipe is provided with a first discharge part 67a communicating with the second communication part 65c, and the other end is provided with a second discharge part 67b protruding to the outside of the main body.

상기 연결관(65)은 본체의 내주면에 결합되며 배출관(67)은 본체의 외주면에 결합되는데,이를 설명한다.The connecting pipe 65 is coupled to the inner circumferential surface of the main body and the discharge pipe 67 is coupled to the outer circumferential surface of the main body, which will be described.

상기 본체(100)의 상면 일측에는 상기 제1냉각수관의 유입부(61b)가 관통,돌출되는 관통홈(101)이 형성된다. 상기 관통홈(101)이 형성된 본체의 외주면에는 안치로(102)가 형성되는데,상기 배출관의 제1배출부(67a)를 제2연통부(65b)에 결합하여 안치로(102)에 안치시키면 제2배출부(67b)는 본체의 상측으로 돌출되는 것이다.On one side of the upper surface of the main body 100 is formed a through groove 101 through which the inlet portion 61b of the first cooling water pipe penetrates and protrudes. On the outer circumferential surface of the body formed with the through groove 101 is formed an arthropath 102, when the first discharge portion (67a) of the discharge pipe is coupled to the second communication portion (65b) and placed in the arthropath (102) The second discharge portion 67b protrudes above the main body.

상기 안치로(102)가 형성된 본체의 내주면에는 결합로(103)로 형성되는데,상기 결합로에는 연결관(65)이 결합된다. 상기 연결관의 제1,2연결부(65a,65b)를 결합부(61c)와 제1연통부(63b)에 각각 결합하며 연결관은 고정자의 외주면과 접촉하게 된다. 그후,고정자를 본체에 압입하면 연결관이 결합로에 결합되는 것이다.An inner circumferential surface of the body in which the settling passage 102 is formed is formed as a coupling passage 103, and the coupling pipe 65 is coupled to the coupling passage. The first and second connection parts 65a and 65b of the connection pipe are respectively coupled to the coupling part 61c and the first communication part 63b, and the connection pipe is in contact with the outer circumferential surface of the stator. Then, when the stator is pressed into the main body, the connector is coupled to the coupling furnace.

상기 후면커버(72)의 일면,더 구체적으로는 상기 본체와 접촉되는 후면커버의 일단에는 결합돌기(72a)가 형성된다. 그리고 상기 본체의 상면에는 상기 결합돌기(72a)가 삽입되는 삽입홈(104)이 형성된다. 상기 결합돌기(72a)와 삽입홈(104)은 후면커버를 본체에 용이하게 결합되게 안내한다.A coupling protrusion 72a is formed at one surface of the rear cover 72, more specifically, at one end of the rear cover in contact with the main body. And the upper surface of the main body is formed with the insertion groove 104 is inserted into the coupling projection (72a). The coupling protrusion 72a and the insertion groove 104 guide the rear cover to be easily coupled to the main body.

상기 구조로 된 본 발명에 따른 전기자동차용 모타의 작용을 설명한다.The operation of the motor for an electric vehicle according to the present invention having the above structure will be described.

고정자(51)의 양측면에 제1,2냉각수관(61,63)을 접촉시킨 후,코일(52)을 고정자와 제1,2냉각수관에 감는다. 그리고 연결관(65)의 양단을 결합부(61c)와 제1연통부(63b)에 결합하여 고정자의 외주면과 연결관이 접촉되도록 한다. 이후,연결관이 결합로(103)에 결합되도록 고정자를 본체에 압입하고 전후면커버(71,72)를 본체에 결합한다. 이때,후면커버의 결합돌기(72a)가 삽입홈(104)에 삽입되게 한다. 그리고 배출관의 제1배출부(67a)를 제2연통부(63c)에 결합하여 안치로(102)로 안치시킨다.After contacting the first and second cooling water pipes 61 and 63 to both sides of the stator 51, the coil 52 is wound around the stator and the first and second cooling water pipes. And both ends of the connecting pipe 65 is coupled to the coupling portion (61c) and the first communication portion (63b) so that the outer peripheral surface of the stator and the connection pipe. Subsequently, the stator is press-fitted into the main body so that the connecting pipe is coupled to the coupling path 103, and the front and rear covers 71 and 72 are coupled to the main body. At this time, the coupling protrusion 72a of the rear cover is inserted into the insertion groove 104. Then, the first discharge portion 67a of the discharge pipe is coupled to the second communication portion 63c and placed in the path 102.

조립을 완료한 후,상기 유입부(61b)로 냉각수를 유입시키면 냉각수는 제1냉각수관 (61)→연결관(65)→제2냉각수관(63)→배출관(67)으로 순환되는 것이다. 이때,냉각수관(61,63)과 연결관(65)은 고정자 및 코일과 직접 접촉하고 있으므로 고정자와 코일에서 발생되는 열은 신속하게 방열되는 것이다.After the assembly is completed, when the coolant is introduced into the inlet 61b, the coolant is circulated from the first cooling water pipe 61 to the connecting pipe 65 to the second cooling water pipe 63 to the discharge pipe 67. At this time, since the cooling water pipes 61 and 63 and the connection pipe 65 are in direct contact with the stator and the coil, heat generated from the stator and the coil is quickly dissipated.

이상에서 설명하듯이 본 발명에 따른 전기자동차용 모타는, 냉각수가 흐르는 관이 고정자 및 코일과 직접 접촉되어 열을 방열시키므로 모타의 냉각효율이 향상된 특징이 있다.As described above, the motor for an electric vehicle according to the present invention has a feature that the cooling efficiency of the motor is improved because the pipe in which the coolant flows is in direct contact with the stator and the coil to radiate heat.

또한,냉각수가 냉각관을 통하여 순환되게 되어 있으므로 모타의 본체의 복잡한 유로를 형성할 필요가 없는,그리하여 그 제작공정이 간단한 특징이 있다.In addition, since the cooling water is circulated through the cooling tube, it is not necessary to form a complicated flow path of the motor main body, and thus the manufacturing process is simple.

또한,냉각관의 연결부위 수가 적으므로 밀봉부재가 적게 소요되는 대단히 경제적인 특징이 있다.In addition, since the number of connection parts of the cooling tube is small, there is a very economical feature that requires less sealing member.

Claims (4)

중공체(中空體)의 본체(100),The main body 100 of the hollow body, 상기 본체(100)에 압입,고정되며 코일(52)이 감겨있는 고정자(51),A stator 51 press-fitted to the main body 100 and having a coil 52 wound thereon; 상기 고정자(51)의 내부에 설치되며 상기 코일(52)에 전류가 공급되면 기전력에 의하여 회전되어 차량의 변속기를 구동시키는 회전자(53),A rotor 53 installed inside the stator 51 and rotated by electromotive force when a current is supplied to the coil 52 to drive a transmission of the vehicle; 상기 본체(100)의 전,후면에 결합되는 전,후면커버(71,72),Front and rear covers 71 and 72 coupled to the front and rear of the main body 100, 상기 고정자(51)의 양측면에 마련되되, 코일(52) 감기게 마련되어 고정자와 코일에서 발생되는 열을 냉각시키는 제1,2냉각수관(61,63),First and second cooling water pipes 61 and 63 provided on both sides of the stator 51 and provided to wind the coil 52 to cool the heat generated from the stator and the coil. 상기 고정자(51)와 접촉되게 본체(100)의 내주면에 마련되어 상기 제1,2냉각수관(61,63)을 연통시킴과 동시에 상기 고정자(51)와 코일(52)을 냉각시키는 연결관(65),A connection pipe 65 provided on the inner circumferential surface of the main body 100 to be in contact with the stator 51 to communicate the first and second cooling water pipes 61 and 63 and to cool the stator 51 and the coil 52. ), 상기 본체(100)의 외주면에 마련되어 제2냉각수관을 통하여 유입된 냉각수를 외부로 배출하는 배출관(67)을 구비하는 것을 특징으로 하는 전기자동차용 모타.Motor for an electric vehicle, characterized in that provided on the outer circumferential surface of the main body 100 has a discharge pipe 67 for discharging the cooling water introduced through the second cooling water pipe to the outside. 제 1항에 있어서,The method of claim 1, 상기 제1냉각수관(61)은,The first cooling water pipe 61, 일측이 절개된 고리 형태로 마련되며 상기 고정자(51)의 일측면과 접촉되는 몸체(61a),One side is provided in the form of a cut ring and the body (61a) in contact with one side of the stator (51), 상기 몸체의 일단면(斷面)에서 외측으로 연장되게 형성되며 냉각수가 유입되는 유입부(61b),An inlet portion 61b formed to extend outwardly from one end surface of the body and into which coolant is introduced; 상기 몸체의 타단면에서 외측으로 연장되게 형성되어 상기 연결관(65)의 일측과 결합되는 결합부(61c를 포함하며,It is formed to extend outward from the other end surface of the body includes a coupling portion (61c) coupled to one side of the connecting pipe (65), 상기 제2냉각수관(63)은,The second cooling water pipe 63, 일측이 절개된 고리 형태로 마련되며 상기 고정자(51)의 타측면과 접촉되는 몸체(63a),One side is provided in the form of a cut ring and the body (63a) in contact with the other side of the stator (51), 상기 몸체의 일단면(斷面)에서 외측으로 연장되게 형성되어 상기 연결관(65)의 타측과 연통되는 제1연통부(63b),A first communication part 63b formed to extend outwardly from one end surface of the body to communicate with the other side of the connection pipe 65; 상기 몸체의 타단면에서 외측으로 연장되게 형성되어 상기 배출관(67)의 일측과 연통되는 제2연통부(63c)를 포함하며,It is formed to extend outward from the other end surface of the body and includes a second communication portion (63c) in communication with one side of the discharge pipe (67), 상기 연결관(65)은 양단이 동일방향으로 절곡된 직선형으로 마련되어 일단은 결합부(61c)와 연결되고 타단은 상기 제1연통부(63b)와 연결되며,The connecting pipe 65 is provided in a straight line, both ends bent in the same direction, one end is connected to the coupling portion (61c) and the other end is connected to the first communication portion (63b), 상기 배출관(67)은 양단이 반대방향으로 절곡된 직선형으로 마련되어 일단은 상기 제2연통부(63c)와 연결되고 타단은 상기 본체의 외측으로 돌출되게 마련된 것을 특징으로 하는 전기자동차용 모타.The discharge pipe 67 is a motor for an electric vehicle, characterized in that both ends are provided in a straight line bent in the opposite direction, one end is connected to the second communication portion (63c) and the other end is protruded to the outside of the main body. 제 2항에 있어서,The method of claim 2, 상기 본체(100)의 일측에는 상기 유입부(61a)가 관통되는 관통홈(101)이 형성되고,One side of the main body 100 is formed with a through groove 101 through which the inlet portion 61a penetrates, 상기 관통홈01)이 형성된 본체의 외주면에는 상기 배출관(67)이 안치되는 안치로(102)가 형성되며,On the outer circumferential surface of the main body in which the through groove 01 is formed, an inner passage 102 in which the discharge pipe 67 is placed is formed. 상기 안치로(102)가 형성된 본체의 타측 내주면에는 상기 연결관(65)이 결합되는 결합로(103)가 형성된 것을 특징으로 하는 전기자동차용 모타.Motor for the electric vehicle, characterized in that the coupling path 103 is formed on the other inner circumferential surface of the main body formed with the settlement path 102 is coupled to the connector (65). 제 2항에 있어서,The method of claim 2, 상기 본체(100)와 접촉되는 후면커버(72)에 단부에는 안내돌기(72a)가 형성되고, 상기 본체(100)에는 상기 안내돌기(72)가 삽입되는 삽입홈(104)이 마련된 것을 특징으로 하는 전기자동차용 모타.A guide protrusion 72a is formed at an end portion of the rear cover 72 which contacts the main body 100, and the main body 100 is provided with an insertion groove 104 into which the guide protrusion 72 is inserted. Motor for electric vehicles.
KR1019960056766A 1996-11-22 1996-11-22 Electric Motor Motor KR100193431B1 (en)

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KR1019960056766A KR100193431B1 (en) 1996-11-22 1996-11-22 Electric Motor Motor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100943330B1 (en) * 2003-12-02 2010-02-19 티엠4 인코포레이티드 Cooling device including a biasing element
US8937414B2 (en) 2011-04-27 2015-01-20 Lg Electronics Inc. Electric motor and electric vehicle having the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101114713B1 (en) * 2010-02-01 2012-02-29 하이젠모터 주식회사 A electric motor and cooling unit thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100943330B1 (en) * 2003-12-02 2010-02-19 티엠4 인코포레이티드 Cooling device including a biasing element
US8937414B2 (en) 2011-04-27 2015-01-20 Lg Electronics Inc. Electric motor and electric vehicle having the same

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