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KR20120022168A - In wheel driven system - Google Patents

In wheel driven system Download PDF

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Publication number
KR20120022168A
KR20120022168A KR1020100085410A KR20100085410A KR20120022168A KR 20120022168 A KR20120022168 A KR 20120022168A KR 1020100085410 A KR1020100085410 A KR 1020100085410A KR 20100085410 A KR20100085410 A KR 20100085410A KR 20120022168 A KR20120022168 A KR 20120022168A
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KR
South Korea
Prior art keywords
motor
wheel
reducer
space
trailing arm
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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
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KR1020100085410A
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Korean (ko)
Inventor
김동현
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현대모비스 주식회사
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Priority to KR1020100085410A priority Critical patent/KR20120022168A/en
Publication of KR20120022168A publication Critical patent/KR20120022168A/en
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles
    • 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
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

본 발명의 인휠 구동시스템은 모터(5)에 "I"자 단면형상을 이루어 함몰되어진 모터커버수용공간(7)과 감속기수용공간(8a)이 형성된 회전체인 로터(6)가 구비되고, 상기 로터(6)의 모터커버수용공간(7)쪽으로 체결되는 모터커버(10)가 돌출부를 이용해 상기 모터커버수용공간(7)에 끼워지고 더불어 감속기(9)도 모터하우징(8)을 통해 상기 감속기수용공간(8a)으로 끼워짐으로써, 상기 모터커버(10)의 뒤쪽부위와 트레일링암(1)사이로 중첩길이b가 형성되고 동시에 모터(5)와 감속기(9)에도 중첩길이a가 형성되어 휠센터에서 샤시결합부인 트레일링암(1)까지 거리A를 상기 중첩길이a+b 만큼 짧게 할 수 있고, 상기와 같은 거리A의 길이축소로 구동축과 휠축이 일치하는 타입의 인휠 구동시스템에서도 주행에 따른 입력하중에 대해 보다 유리한 작용과 샤시쪽의 내구성을 향상시키는 특징을 갖게 된다.In-wheel drive system of the present invention is provided with a rotor (6) is a rotating body formed with a motor cover accommodation space 7 and a reduction gear accommodation space (8a) recessed to form a "I" cross-section in the motor (5), The motor cover 10, which is fastened to the motor cover accommodation space 7 of the rotor 6, is fitted into the motor cover accommodation space 7 by using a protrusion, and the reducer 9 is also connected to the speed reducer through the motor housing 8. By being fitted into the receiving space 8a, the overlapping length b is formed between the rear portion of the motor cover 10 and the trailing arm 1, and at the same time, the overlapping length a is formed on the motor 5 and the reducer 9, and the wheel The distance A from the center to the trailing arm 1, which is the chassis coupling portion, can be shortened by the overlap length a + b. More favorable action against input load and chassis side durability It will have a feature that improves.

Description

인휠 구동시스템{In Wheel Driven System} In Wheel Driven System

본 발명은 인휠 구동시스템에 관한 것으로, 특히 휠센터와 샤시결합부까지의 거리를 최대로 단축하는 인휠 구동시스템에 관한 것이다.The present invention relates to an in-wheel drive system, and more particularly, to an in-wheel drive system that minimizes the distance between the wheel center and the chassis coupling portion.

일반적으로 인휠 구동시스템은 휠의 안쪽에서 제동장치와 함께 장착되어진 모터와 감속기를 구비한다.In-wheel drive systems generally have a motor and a reducer mounted with a brake on the inside of the wheel.

상기 인휠 구동시스템은 구동축과 휠축이 불일치하는 감속기타입과 구동축과 휠축이 일치하는 축형 감속기타입으로 구별되며, 상기 구동축과 휠축이 일치하는 축형 감속기타입은 모터와 감속기 및 허브가 동일축상으로 나란히 배열되는 구조가 적용된다.The in-wheel drive system is divided into a reduction gear type in which a drive shaft and a wheel shaft are inconsistent and an axial gear reducer type in which a driving shaft and a wheel shaft coincide with each other. The structure is applied.

그리고, 상기 구동축과 휠축이 일치하는 축형 감속기타입은 드럼브레이크와 함께 적용되는 유성감속기타입과, 캘리퍼와 함께 적용되는 감속기 미적용 타입으로 구분된다.In addition, the shaft type reducer type in which the drive shaft and the wheel shaft coincide is divided into a planetary reducer type applied with a drum brake and a non-reduction type applied with a caliper.

상기 유성감속기타입은 토크증대를 위해 유성기어가 사용되므로 캘리퍼가 들어갈 공간이 없어 드럼브레이크에 적용되고, 감속기 미적용 타입은 모터반경을 크게 하여 감속기 없이 토크증대를 하므로 캘리퍼의 장착 공간을 확보할 수 있지만 휠사이즈가 커지게 된다.The planetary reducer type is a planetary gear used for torque increase, so there is no space for a caliper to be applied to the drum brake, and the non-reduction type can increase the torque without a reducer to secure the caliper's mounting space. The wheel size becomes larger.

하지만, 상기와 같이 구동축과 휠축이 일치하는 타입은 허브에 대해 감속기와 모터가 동일축상으로 나란히 배열됨으로써, 휠에서 샤시결합부(트레일링암)까지 이어지는 결합부가 모터의 크기만큼 더 멀어지게 된다.However, in the type in which the drive shaft and the wheel shaft coincide with each other as described above, the reducer and the motor are arranged side by side on the same axis with respect to the hub, such that the coupling portion extending from the wheel to the chassis coupling portion (trailing arm) is further separated by the size of the motor.

그러므로, 상기와 같이 구동축과 휠축이 일치하는 타입의 인휠 구동시스템에선 휠센터에서 샤시결합부(트레일링암)까지 거리가 작을수록 주행에 따른 입력하중에 대해 유리하므로, 모터와 감속기의 폭크기를 축소할 수 있는 구조가 매우 중요할 수밖에 없게 된다.
Therefore, in the in-wheel drive system of the type in which the drive shaft and the wheel shaft coincide with each other, the smaller the distance from the wheel center to the chassis coupling portion (trailing arm) is advantageous for the input load according to the driving, thereby reducing the width of the motor and the reducer. The structure that can be made is very important.

이에 상기와 같은 점을 감안하여 발명된 본 발명은 모터의 회전체인 로터의 양쪽으로 폭크기를 줄이는 수용공간부를 형성해 샤시쪽 구성부와 함께 감속기가 상기 수용공간부로 매입됨으로써, 구동축과 휠축이 일치하는 타입에서 휠센터에서 샤시결합부(트레일링암)까지 거리가 크게 줄어 들 수 있는 인휠 구동시스템을 제공하는데 목적이 있다.
Accordingly, the present invention in view of the above point is to form a receiving space to reduce the width on both sides of the rotor of the rotor of the motor to form a reduction gear with the chassis side components, the drive shaft and the wheel shaft is matched It is an object of the present invention to provide an in-wheel drive system in which the distance from the wheel center to the chassis coupling part (trailing arm) can be greatly reduced.

상기와 같은 목적을 달성하기 위한 본 발명은 휠의 안쪽공간으로 설치된 모터와 감속기를 갖추고, 상기 모터의 구동축과 상기 휠축이 일치하는 인휠 구동시스템에 있어서, In the present invention for achieving the above object is provided with a motor and a reducer installed in the inner space of the wheel, the drive shaft and the wheel shaft of the motor in the in-wheel drive system,

트레일링암쪽으로 위치되어 상기 모터의 측면으로 결합된 모터커버에는 상기 모터의 안쪽공간으로 함몰된 공간에 끼워지도록 속이 빈 공간을 갖는 돌출부가 형성되어, 상기 돌출부의 속이 빈 공간으로 상기 모터쪽으로 결합되는 상기 트레일링암쪽 부위가 삽입되어 상기 삽입길이만큼 상기 휠의 센터에서 상기 트레일링암까지의 거리A를 축소하고,A motor cover positioned toward the trailing arm and coupled to the side of the motor is provided with a protrusion having a hollow space to fit into a space recessed into the inner space of the motor, and the protrusion coupled to the motor into the hollow space. The trailing arm side portion is inserted to reduce the distance A from the center of the wheel to the trailing arm by the insertion length,

상기 모터커버의 반대쪽에서 상기 모터에 결합된 모터하우징에는 상기 모터의 안쪽공간으로 함몰된 공간에 끼워지도록 속이 빈 공간을 갖는 함몰부가 형성되어, 상기 함몰부의 속이 빈 공간으로 상기 모터쪽으로 결합되는 상기 감속기가 삽입되어 상기 삽입길이만큼 상기 휠의 센터에서 상기 트레일링암까지의 거리A를 축소하는 것을 특징으로 한다.A motor housing coupled to the motor on the opposite side of the motor cover is provided with a depression having a hollow space to fit into a space recessed into the inner space of the motor, wherein the reducer is coupled to the motor with a hollow space of the depression. Is inserted to reduce the distance A from the center of the wheel to the trailing arm by the insertion length.

상기 모터에는 "I"자 단면형상을 이루는 회전체인 로터가 구비되고, 상기 로터의 양쪽측면이 형성하는 각각의 공간으로 상기 모터커버의 돌출부와 상기 모터하우징의 함몰부가 각각 끼워진다. The motor is provided with a rotor which is a rotating body forming an “I” cross section, and the protrusion of the motor cover and the depression of the motor housing are fitted into respective spaces formed on both sides of the rotor.

상기 모터커버의 반대쪽 방향으로 모터하우징이 상기 모터에 체결되고, 상기 모터커버가 덧대어진 상기 로터의 위쪽공간으로 레졸버가 설치되며, 상기 모터하우징의 함몰부에 압입된 감속기가 상기 모터하우징에 체결되는 다웰핀으로 고정되어진다.
A motor housing is fastened to the motor in a direction opposite to the motor cover, and a resolver is installed in the upper space of the rotor, in which the motor cover is padded, and a reducer pressed into the recess of the motor housing is fastened to the motor housing. It is fixed with dowel pins.

이러한 본 발명은 모터의 양쪽으로 형성된 수용공간부의 길이만큼 결합부품의 폭크기가 축소되어 휠센터에서 샤시결합부(트레일링암)까지 거리를 최소화하므로 샤시의 내구성능을 향상하는 효과가 있게 된다.The present invention reduces the width of the coupling part by the length of the receiving space formed on both sides of the motor to minimize the distance from the wheel center to the chassis coupling portion (trailing arm) has the effect of improving the durability of the chassis.

또한, 본 발명의 모터의 회전체인 로터의 양쪽부위를 제거한 컴팩트한 모터 설계로 언스프렁 매스(Unsprung Mass)가 감소될 수 있는 효과도 있게 된다.In addition, the compact motor design by removing both parts of the rotor, the rotor of the motor of the present invention has the effect that the Unsprung Mass can be reduced.

또한, 본 발명의 모터와 감속기는 서로 압입조립되므로 불필요한 조립부품이 감소되고 조립공정도 단순화되며, 특히 모터나 감속기중 한쪽의 고장시 개별적으로 교체되므로 A/S성도 크게 향상되는 효과도 있게 된다.
In addition, since the motor and the reducer of the present invention are press-assembled with each other, unnecessary assembly parts are reduced and the assembling process is simplified. In particular, when one of the motor or the reducer is individually replaced, the A / S property is also greatly improved.

도 1은 본 발명에 따른 인휠 구동시스템의 구성도이고, 도 2는 본 발명에 따른 인휠 구동시스템의 단면구성도이며, 도 3은 본 발명에 따른 모터와 감속기의 결합도이다.1 is a configuration diagram of the in-wheel drive system according to the present invention, Figure 2 is a cross-sectional configuration diagram of the in-wheel drive system according to the present invention, Figure 3 is a coupling diagram of the motor and the reducer according to the present invention.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the Example to make.

도 1은 본 발명에 따른 인휠 구동시스템의 구성도로서, 상기 인휠 구동시스템은 모터의 구동축과 휠축이 일치하는 타입이다.1 is a configuration diagram of an in-wheel drive system according to the present invention, wherein the in-wheel drive system is a type in which the drive shaft and the wheel shaft of the motor coincide.

도시된 바와 같이, 상기 인휠 구동시스템은 드럼브레이크(2)를 안쪽으로 위치시키고 축중심을 이루는 허브를 형성한 휠의 휠축과 상기 휠의 안쪽으로 위치되는 샤시결합부인 트레일링암(1)쪽에 체결된 모터(5)의 구동축이 서로 동일축(K-K)으로 일치되어진다.As shown, the in-wheel drive system is fastened to the wheel axle of the wheel which has the drum brake 2 inwardly and forms a hub which forms an axial center, and the trailing arm 1 which is a chassis coupling part located inwardly of the wheel. The drive shafts of the motor 5 coincide with each other on the same axis KK.

상기와 같은 인휠 구동시스템에선 휠의 휠센터에서 트레일링암(1)까지의 거리A가 짧을수록 주행시 전달되는 입력하중에 대해 유리한 작용이 구현된다.In the in-wheel drive system as described above, the shorter the distance A from the wheel center of the wheel to the trailing arm 1, the more advantageous the effect on the input load transmitted during driving.

상기 모터(5)의 회전력을 받아 휠을 구동하는 감속기(9)는 상기 모터(5)의 구동축에 연결되므로, 휠의 휠센터에서 트레일링암(1)까지의 거리A는 모터(5)의 폭크기에 더해 상기 모터(5)와 트레일링암(1)의 체결부가 형성하는 길이 및 그 반대쪽에서 상기 모터(5)에 결합된 감속기(9)의 폭크기로 결정되어진다.Since the reduction gear 9 which drives the wheel by receiving the rotational force of the motor 5 is connected to the drive shaft of the motor 5, the distance A from the wheel center of the wheel to the trailing arm 1 is the width of the motor 5. In addition to the size, it is determined by the length of the fastening portion of the motor 5 and the trailing arm 1 and the width of the reducer 9 coupled to the motor 5 on the opposite side.

그러므로, 상기 거리A를 짧게 줄이기 위한 다양한 구조가 적용될 수 있지만, 본 실시예에 따른 인휠 구동시스템에선 모터(5)의 트레일링암(1)쪽 결합구조를 변화시켜 모터(5)의 트레일링암(1)쪽 체결부의 길이를 줄여 상기 거리A를 축소시키고, 이에 더해 감속기(9)의 모터(5)쪽 체결부의 길이를 줄여 다시 상기 거리A를 축소시키는 이중적인 구조가 적용된다.Therefore, although various structures for shortening the distance A can be applied, in the in-wheel drive system according to the present embodiment, the trailing arm 1 of the motor 5 is changed by changing the coupling structure of the trailing arm 1 of the motor 5. The distance A is shortened to reduce the distance A, and in addition, a double structure is applied to reduce the distance A again by reducing the length of the fastener 9 to the motor 5 side of the reducer 9.

일례로서, 상기 모터(5)를 이루는 회전체인 로터(6)가 전체적으로 "I"자 단면형상을 이룸으로써, 상기 "I"자 단면의 양쪽측면을 이용해 로터(6)의 안쪽공간으로 함몰된 공간인 모터커버수용공간(7)과 감속기수용공간(8a)과 같이 빈공간을 형성시켜준다. As an example, the rotor 6, which is the rotating body constituting the motor 5, has an overall "I" cross section shape, and is recessed into the inner space of the rotor 6 using both sides of the "I" cross section. An empty space is formed, such as a motor cover accommodation space 7 and a reduction gear accommodation space 8a, which are spaces.

본 실시예에서 모터커버(10)가 상기 모터커버수용공간(7)으로 결합되므로 상기 모터커버(10)에는 상기 모터커버수용공간(7)으로 삽입되는 동일한 단면구조의 돌출부가 형성되고, 모터하우징(8)이 상기 감속기수용공간(8a)으로 결합되므로 상기 모터하우징(8)에는 상기 감속기수용공간(8a)으로 삽입되는 동일한 단면구조의 함몰부가 형성된다.In this embodiment, since the motor cover 10 is coupled to the motor cover accommodation space 7, the motor cover 10 is provided with a protrusion having the same cross-sectional structure inserted into the motor cover accommodation space 7, and the motor housing. Since 8 is coupled to the reducer accommodation space 8a, the motor housing 8 is provided with a depression having the same cross-sectional structure inserted into the reducer accommodation space 8a.

도 2는 본 실시예에 따른 인휠 구동시스템의 단면구성도를 나타낸다.2 shows a cross-sectional view of the in-wheel drive system according to the present embodiment.

도시된 바와 같이, 모터(5)에는 "I"자 단면형상을 이루는 회전체인 로터(6)가 구비되고, 상기 로터(6)의 일측으로는 모터커버(10)가 체결되고 그 반대쪽으로는 모터하우징(8)이 체결되어진다.As shown, the motor 5 is provided with a rotor 6 which is a rotating body forming an “I” cross section, and the motor cover 10 is fastened to one side of the rotor 6 and to the opposite side thereof. The motor housing 8 is fastened.

또한, 상기 모터커버(10)가 덧대어진 로터(6)의 위쪽공간으로 레졸버(30)가 설치되며, 상기 로터(6)의 감속기수용공간(8a)쪽으로 덧대어진 모터하우징(8)쪽으로는 감속기(9)가 결합되어진다.In addition, the resolver 30 is installed in an upper space of the rotor 6, on which the motor cover 10 is padded, and toward the motor housing 8, which is padded toward the reduction gear accommodation space 8a of the rotor 6. The reducer 9 is coupled.

상기 레졸버(30)는 모터(5)를 제어하기 위한 모터의 속도와 자석의 위치를 정확히 검출하는 작용을 한다.The resolver 30 functions to accurately detect the speed of the motor and the position of the magnet for controlling the motor 5.

본 실시예에 따른 상기 모터커버(10)는 상기 로터(6)의 한쪽 측면으로 함몰된 모터커버수용공간(7)의 단면구조와 일치되는 돌출부가 형성된 모자형상의 단면구조를 형성하며, 상기 돌출부는 프레스등으로 모터커버(10)를 눌러 단차진 단면구조로 형성하고, 로터(6)쪽에 밀착되는 부위의 살두께를 다른 부위에 비해 더 두껍게 형성한다.The motor cover 10 according to the present embodiment forms a hat-shaped cross-sectional structure in which a protrusion is formed to match the cross-sectional structure of the motor cover accommodation space 7 recessed to one side of the rotor 6. Press the motor cover 10 with a press or the like to form a stepped cross-sectional structure, the thickness of the portion to be in close contact with the rotor 6 forms a thicker than other portions.

이에 따라 상기 모터커버(10)가 상기 로터(6)의 한쪽 측면으로 조립되면, 상기 모터커버(10)의 돌출부가 상기 로터(6)의 한쪽 측면에서 함몰된 모터커버수용공간(7)으로 끼워지게 된다.Accordingly, when the motor cover 10 is assembled to one side of the rotor 6, the protrusion of the motor cover 10 is inserted into the motor cover accommodation space 7 recessed in one side of the rotor 6. You lose.

상기와 같이 모터커버(10)가 돌출부를 이용해 로터(6)의 한쪽 측면을 이루는 함몰된 모터커버수용공간(7)으로 끼워짐으로써, 상기 모터커버(10)의 뒤쪽부위와 트레일링암(1)사이에는 상기 모터커버(10)의 돌출부의 내부공간으로 중첩길이인 b가 형성되어진다.As described above, the motor cover 10 is inserted into the recessed motor cover accommodation space 7 that forms one side of the rotor 6 by using the protrusion, so that the rear portion of the motor cover 10 and the trailing arm 1 are mounted. Between the b is formed a length overlapping the inner space of the protrusion of the motor cover 10.

상기 중첩길이b는 트레일링암(1)과 모터(5)사이의 결합을 위한 부품이 삽입될 수 있는 여유공간을 제공할 수 있고, 이로 인해 휠센타에서 샤시결합부인 트레일링암(1)까지 거리A는 상기 중첩길이b 만큼 짧아질 수 있게 된다.The overlap length b may provide a clearance for inserting a component for coupling between the trailing arm 1 and the motor 5, and thus the distance A from the wheel center to the trailing arm 1, which is the chassis coupling part. Can be shortened by the overlap length b.

상기와 같이 거리A가 중첩길이b 만큼 짧아짐으로써, 구동축과 휠축이 일치하는 타입의 인휠 구동시스템에서도 주행에 따른 입력하중에 대해 보다 유리한 작용과 샤시쪽의 내구성을 향상시킬 수 있게 된다.As described above, as the distance A is shortened by the overlap length b, even in-wheel drive systems of the type in which the drive shaft and the wheel shaft coincide with each other can more advantageously act on the input load according to the driving and the durability of the chassis side.

이와 더불어 상기 로터(6)의 감속기수용공간(8a)쪽으로 덧대어진 모터하우징(8)의 함몰부로는 감속기(9)가 결합되어진다.In addition, the reduction gear 9 is coupled to the depression of the motor housing 8, which is padded toward the reduction gear accommodation space 8a of the rotor 6.

본 실시예에선 상기 감속기(9)가 상기 모터하우징(8)의 함몰부로 삽입됨으로써 상기 감속기(9)는 모터(5)쪽과 서로 중첩되는 중첩길이인 a가 형성되어진다.In this embodiment, the reducer 9 is inserted into the recess of the motor housing 8 so that the reducer 9 is formed with an overlap length a overlapping with the motor 5 side.

그러므로, 상기 모터(5)와 상기 감속기(9)가 동일축(K-K)을 갖고 순차적으로 배열되더라도 상기 모터(5)와 상기 감속기(9)의 폭크기는 상기 중첩길이a 만큼 줄어들고, 이러한 상기 폭크기 축소는 휠센터에서 샤시결합부인 트레일링암(1)까지 거리A를 짧게 하게 된다.Therefore, even if the motor 5 and the reducer 9 are arranged sequentially with the same axis KK, the width of the motor 5 and the reducer 9 is reduced by the overlap length a, and the width The reduction in size will shorten the distance A from the wheel center to the trailing arm (1), which is the chassis coupling.

상기와 같이 본 실시예에선 모터(5)를 기준으로 트레일링암(1)쪽에 중첩길이b가 형성되고 감속기(9)쪽에 중첩길이a가 형성됨으로써, 휠센터에서 샤시결합부인 트레일링암(1)까지 거리A는 상기 중첩길이b와 중첩길이a를 합한 길이 만큼 짧아질 수 있게 된다.As described above, in the present embodiment, the overlapping length b is formed on the trailing arm 1 side based on the motor 5 and the overlapping length a is formed on the reducer 9 side, so that the wheel center to the trailing arm 1 which is the chassis coupling part is formed. The distance A can be shortened by the sum of the overlap length b and the overlap length a.

상기와 같이 거리A가 중첩길이a+b 만큼 짧아짐으로써, 구동축과 휠축이 일치하는 타입의 인휠 구동시스템에서도 주행에 따른 입력하중에 대해 보다 유리한 작용과 샤시쪽의 내구성을 더욱 향상시킬 수 있게 된다.As described above, as the distance A is shortened by the overlap length a + b, even in-wheel drive systems of the type in which the drive shaft and the wheel shaft coincide with each other can further improve the advantageous action against the input load caused by the driving and the durability of the chassis side.

또한, 본 실시예에선 상기 감속기(9)가 모터하우징(8)에 다웰핀(20)으로 압입고정됨으로써, 상기 감속기(9)와 모터하우징(8)의 조립 및 분리가 용이하게 된다.In addition, in the present embodiment, the reducer 9 is press-fitted and fixed to the motor housing 8 by the dowel pin 20, so that the reducer 9 and the motor housing 8 can be easily assembled and separated.

즉, 상기 모터하우징(8)에 상기 감속기(9)가 삽입된 상태에서 상기 감속기(9)의 하우징과 상기 모터하우징(8)의 함몰부사이로 다웰핀(20)이 압입됨으로써, 상기 다웰핀(20)이 감속기(9)와 모터하우징(8)을 서로 고정하게 된다.That is, the dowel pin 20 is press-fitted between the housing of the reducer 9 and the depression of the motor housing 8 while the reducer 9 is inserted into the motor housing 8. 20 will fix the reducer 9 and the motor housing 8 to each other.

상기 다웰핀(20)은 90도 간격으로 4곳에 형성되어진다.The dowel pins 20 are formed at four positions at intervals of 90 degrees.

상기와 같이 감속기(9)가 다웰핀(20)으로 모터하우징(8)과 서로 고정되어 감속기(5)를 모터(5)와 분리시켜줌으로써, 모터(5)나 감속기(9)의 한쪽만 고장날 때 모터(5)와 감속기(9)를 함께 교체하지 않고 고장난 한쪽만 교체하거나 정비 할 수 있는 편리성이 제공될 수 있게 된다.
As described above, the reducer 9 is fixed to the motor housing 8 by the dowel pin 20 so as to separate the reducer 5 from the motor 5 so that only one side of the motor 5 or the reducer 9 fails. When the motor (5) and the reducer (9) is not replaced together, it is possible to provide convenience that can replace or maintain only the faulty one.

1 : 트레일링암 2 : 드럼브레이크
5 : 모터 6 : 로터
7 : 모터커버수용공간 8 : 모터하우징
8a : 감속기수용공간
9 : 감속기 9a : 고정단
10 : 모터커버
20 : 다웰핀 30 : 레졸버1: trailing arm 2: drum brake
5: motor 6: rotor
7: Motor cover accommodating space 8: Motor housing
8a: Reducer space
9: Reducer 9a: Fixed End
10: motor cover
20: dowel pin 30: resolver

Claims (4)

휠의 안쪽공간으로 설치된 모터와 감속기를 갖추고, 상기 모터의 구동축과 상기 휠축이 일치하는 인휠 구동시스템에 있어서,
트레일링암쪽으로 위치되어 상기 모터의 측면으로 결합된 모터커버에는 상기 모터의 안쪽공간으로 함몰된 공간에 끼워지도록 속이 빈 공간을 갖는 돌출부가 형성되어, 상기 돌출부의 속이 빈 공간으로 상기 모터쪽으로 결합되는 상기 트레일링암쪽 부위가 삽입되어 상기 삽입길이만큼 상기 휠의 센터에서 상기 트레일링암까지의 거리A를 축소하고,
상기 모터커버의 반대쪽에서 상기 모터에 결합된 모터하우징에는 상기 모터의 안쪽공간으로 함몰된 공간에 끼워지도록 속이 빈 공간을 갖는 함몰부가 형성되어, 상기 함몰부의 속이 빈 공간으로 상기 모터쪽으로 결합되는 상기 감속기가 삽입되어 상기 삽입길이만큼 상기 휠의 센터에서 상기 트레일링암까지의 거리A를 축소하는 것을 특징으로 하는 인휠 구동시스템.
In the in-wheel drive system having a motor and a reduction gear installed in the inner space of the wheel, the drive shaft and the wheel shaft of the motor coincide,
A motor cover positioned toward the trailing arm and coupled to the side of the motor is provided with a protrusion having a hollow space to fit into a space recessed into the inner space of the motor, and the protrusion coupled to the motor into the hollow space. The trailing arm side portion is inserted to reduce the distance A from the center of the wheel to the trailing arm by the insertion length,
A motor housing coupled to the motor on the opposite side of the motor cover is provided with a depression having a hollow space to fit into a space recessed into the inner space of the motor, wherein the reducer is coupled to the motor with a hollow space of the depression. Is inserted to reduce the distance A from the center of the wheel to the trailing arm by the insertion length.
청구항 1에 있어서, 상기 모터에는 "I"자 단면형상을 이루는 회전체인 로터가 구비되고, 상기 로터의 양쪽측면이 형성하는 각각의 공간으로 상기 모터커버의 돌출부와 상기 모터하우징의 함몰부가 각각 끼워지는 것을 특징으로 하는 인휠 구동시스템.
The motor of claim 1, wherein the motor is provided with a rotor which is a rotating body having an “I” cross-sectional shape, and the protrusions of the motor cover and the depressions of the motor housing are inserted into respective spaces formed on both sides of the rotor. In-wheel drive system, characterized in that the losing.
청구항 1에 있어서, 상기 모터커버의 반대쪽 방향으로 모터하우징이 상기 모터에 체결되고, 상기 모터커버가 덧대어진 상기 로터의 위쪽공간으로 레졸버가 설치되며, 상기 모터하우징의 함몰부에 압입된 감속기가 상기 모터하우징에 체결되는 다웰핀으로 고정되는 것을 특징으로 하는 인휠 구동시스템.
The speed reducer of claim 1, wherein a motor housing is fastened to the motor in a direction opposite to the motor cover, and a resolver is installed in an upper space of the rotor on which the motor cover is padded, and the reducer is pressed into the recess of the motor housing. In-wheel drive system, characterized in that fixed to the dowel pin fastened to the motor housing.
청구항 3에 있어서, 상기 다웰핀은 적어도 1개 이상인 것을 특징으로 하는 인휠 구동시스템.
The in-wheel drive system according to claim 3, wherein the dowel pin is at least one.
KR1020100085410A 2010-09-01 2010-09-01 In wheel driven system Ceased KR20120022168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100085410A KR20120022168A (en) 2010-09-01 2010-09-01 In wheel driven system

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101441813B1 (en) * 2013-06-25 2014-09-18 현대위아 주식회사 Device for driving rear wheel of electric vehicle
CN105034790A (en) * 2015-09-10 2015-11-11 安徽工程大学 Electric automobile torsion girder type driving system and driving method of same
CN105329088A (en) * 2014-08-08 2016-02-17 上海劲马车辆有限公司 Driving motor-contained wheel hub system for pure electric automobile
WO2021173504A1 (en) 2020-02-24 2021-09-02 Bendix Commercial Vehicle Systems Llc Splined drum and electric motor engagement assembly
KR20220102283A (en) 2021-01-13 2022-07-20 현대위아 주식회사 In wheel system
KR20220117744A (en) 2021-02-17 2022-08-24 현대위아 주식회사 Suspension with independent steering
US11635118B2 (en) 2020-01-17 2023-04-25 Bendix Commercial Vehicle Systems Llc Electric vehicle drum brake dust evacuation and cooling concept

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101441813B1 (en) * 2013-06-25 2014-09-18 현대위아 주식회사 Device for driving rear wheel of electric vehicle
US9090142B2 (en) 2013-06-25 2015-07-28 Hyundai Wia Corporation Device for driving rear wheel of electric vehicle
CN105329088A (en) * 2014-08-08 2016-02-17 上海劲马车辆有限公司 Driving motor-contained wheel hub system for pure electric automobile
CN105034790A (en) * 2015-09-10 2015-11-11 安徽工程大学 Electric automobile torsion girder type driving system and driving method of same
US11635118B2 (en) 2020-01-17 2023-04-25 Bendix Commercial Vehicle Systems Llc Electric vehicle drum brake dust evacuation and cooling concept
WO2021173504A1 (en) 2020-02-24 2021-09-02 Bendix Commercial Vehicle Systems Llc Splined drum and electric motor engagement assembly
US11602951B2 (en) 2020-02-24 2023-03-14 Bendix Commercial Vehicle Systems Llc Splined drum and electric motor engagement assembly
KR20220102283A (en) 2021-01-13 2022-07-20 현대위아 주식회사 In wheel system
KR20220117744A (en) 2021-02-17 2022-08-24 현대위아 주식회사 Suspension with independent steering

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