KR20120025140A - Electromechanical brake apparatus - Google Patents

Electromechanical brake apparatus Download PDF

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Publication number
KR20120025140A
KR20120025140A KR1020100087337A KR20100087337A KR20120025140A KR 20120025140 A KR20120025140 A KR 20120025140A KR 1020100087337 A KR1020100087337 A KR 1020100087337A KR 20100087337 A KR20100087337 A KR 20100087337A KR 20120025140 A KR20120025140 A KR 20120025140A
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South Korea
Prior art keywords
piston
caliper housing
disk
carrier
electric
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KR1020100087337A
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Korean (ko)
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KR101220405B1 (en
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김명준
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주식회사 만도
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Priority to KR1020100087337A priority Critical patent/KR101220405B1/en
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    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/44—Mechanical mechanisms transmitting rotation
    • F16D2125/46—Rotating members in mutual engagement
    • F16D2125/48—Rotating members in mutual engagement with parallel stationary axes, e.g. spur gears
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/02—Release mechanisms

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE: An electric-powered disk brake device is provided to increase advance rate of a piston in order to stop quickly when the brake is started by applying predetermined pre-load to gear structure when a brake quiescent point of a friction pad moves. CONSTITUTION: An electric-powered disk brake device comprises a carrier, a caliper housing(20), friction pads(11,12), a piston(21), a gear structure(33), and an elastic member(40). A carrier is fixed to a car body. The caliper housing is installed in the carrier to be able to move back and forth. The piston is installed in a cylinder part which is prepared in the caliper housing to be able to move back and forth. The gear structure delivers power generated from a rotary shaft of an electric motor to an operational axle. The elastic member is installed in between an inner wall of the caliper housing and the piston.

Description

전동식 디스크 브레이크 장치{Electromechanical Brake Apparatus}Electric Disc Brake Apparatus {Electromechanical Brake Apparatus}

본 발명은 전동식 브레이크 장치에 관한 것으로서, 더욱 상세하게는 래틀 노이즈 발생 및 제동 초기의 작동 지연 방지를 할 수 있는 전동식 디스크 브레이크 장치에 관한 것이다.The present invention relates to an electric brake apparatus, and more particularly, to an electric disc brake apparatus capable of preventing the occurrence of rattle noise and the delay of operation in the initial stage of braking.

일반적으로, 자동차의 휠에는 브레이크 장치가 설치되어 있어서 주행 중에는 브레이크 페달의 조작에 의해 제동력을 얻게 되고, 주차 시에는 주차 브레이크의 레버 조작에 의해 제동력이 발생하여 정지 상태를 유지할 수 있도록 되어 있다. In general, a brake device is provided on a wheel of an automobile so that a braking force is obtained by operating a brake pedal while driving, and a braking force is generated by a lever operation of a parking brake during parking, so that a stop state can be maintained.

통상의 디스크 브레이크 장치는 디스크의 양측에 마찰패드가 부착된 한 쌍의 패드플레이트가 마련되어 있어서, 유압 또는 모터에 의해 구동되는 피스톤이 마찰패드를 디스크에 강하게 가압함으로써 차량을 제동한다. Conventional disc brake devices are provided with a pair of pad plates having friction pads attached to both sides of the disk, such that a piston driven by hydraulic pressure or a motor brakes the vehicle by strongly pressing the friction pad against the disk.

일례로 종래의 전동식 브레이크 장치(Electromechanical Brake; EMB)는 상술한 디스크 및 패드플레이트와, 패드플레이트를 디스크에 가압하기 위한 피스톤 구동유닛으로써 모터와, 모터에 연결되는 감속기 및 직선운동 변환기구 등을 포함한다. 이러한 전동식 디스크 브레이크 장치는 유압식 브레이크 장치에 비해 구조가 단순하지만, 감속기 내부에 존재하는 다수의 기어 연결로 인한 백 래쉬(back rash) 등으로 인해 진동에 노출될 경우 래틀 노이즈(rattle noise)가 발생할 확률이 높으며, 또한 제동 초기에 작동 지연이 발생할 수밖에 없다. For example, a conventional electric brake device (EMB) includes the above-described disk and pad plate, a piston drive unit for pressing the pad plate to the disk, a motor, a reducer connected to the motor, a linear motion converter, and the like. do. Although the electric disc brake device is simpler than the hydraulic brake device, the probability of rattle noise is generated when exposed to vibration due to back rash caused by a number of gear connections inside the reducer. This is high, and operation delays inevitably occur early in braking.

본 발명은 상술한 종래 기술에 착안한 것으로서, 본 발명의 목적은 진동 소음 저감 및 제동 초기의 작동 지연을 방지할 수 있는 전동식 디스크 브레이크 장치를 제공하는 데 있다. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described prior art, and an object of the present invention is to provide an electric disc brake device capable of reducing vibration noise and preventing an operation delay in the initial stage of braking.

상기 목적을 달성하기 위한 본 발명에 따른 전동식 디스크 브레이크 장치는 차체에 고정되는 캐리어와, 캐리어에 진퇴이동 가능하게 설치되는 캘리퍼 하우징과, 캐리어 내에 진퇴이동 가능하게 설치되며 사이에 차량의 휠과 함께 회전하는 디스크가 배치되는 한 쌍의 마찰패드와, 캘리퍼 하우징에 마련된 실린더부에 진퇴이동 가능하게 설치되어 한 쌍의 마찰패드 중 어느 하나를 디스크로 가압하는 피스톤과, 피스톤과 나사 결합되는 작동축과, 작동축을 회전시키기 위한 전기모터와, 다수의 기어를 포함하여 전기모터의 회전축에서 발생한 동력을 작동축에 전달하는 기어조립체와, 피스톤과 캘리퍼 하우징의 내벽 사이에 마련되어 마찰패드가 디스크로부터 이격된 제동 대기 지점에 위치할 때 기어조립체가 예압을 가지도록 마련되는 탄성부재를 포함한다. Electric disc brake device according to the present invention for achieving the above object is a carrier fixed to the vehicle body, the caliper housing is installed in the carrier to move forward and backward, and installed in the carrier to move forward and with the wheel of the vehicle therebetween A pair of friction pads on which the disk is disposed, a piston installed on the cylinder portion provided in the caliper housing to move forward and backward, and a piston for pressing one of the pair of friction pads onto the disk; An electric motor for rotating the working shaft, a gear assembly including a plurality of gears for transmitting power generated from the rotating shaft of the electric motor to the working shaft, and a brake pad provided between the piston and the inner wall of the caliper housing so that the friction pad is spaced from the disk. When positioned at a point, the gear assembly includes an elastic member provided to have a preload. The.

또한, 본 발명에 따른 전동식 디스크 브레이크의 상기 탄성부재는 인장 스프링을 이용한다. In addition, the elastic member of the electric disk brake according to the present invention uses a tension spring.

본 발명에 따른 전동식 디스크 브레이크 장치는 마찰패드를 디스크 측으로 가압하는 피스톤과 캘리퍼 하우징의 내벽 사이에 탄성부재를 설치하여 마찰패드의 제동 대기 지점 이동 시 기어조립체에 소정 예압을 인가함으로써 제동이 시작될 때 피스톤(마찰패드)의 전진 속도를 증가시켜 신속한 제동이 이루어질 수 있도록 하는 한편, 기어 진동에 의한 래틀 노이즈를 저감시킬 수 있다.In the electric disc brake device according to the present invention, an elastic member is installed between the piston that presses the friction pad toward the disc and the inner wall of the caliper housing to apply a predetermined preload to the gear assembly when the brake pad moves to a braking standby point. The braking noise can be reduced by increasing the forward speed of the (friction pad) so as to achieve rapid braking.

도 1은 본 발명의 일 실시예에 따른 전동식 디스크 브레이크 장치를 도시한 사시도이다.
도 2는 본 발명의 일 실시예에 따른 전동식 디스크 브레이크 장치를 도시한 단면도이다.1 is a perspective view showing an electric disc brake device according to an embodiment of the present invention.
2 is a cross-sectional view showing an electric disc brake device according to an embodiment of the present invention.

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명하기로 한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 및 도 2는 본 발명의 일 실시예에 따른 전동식 디스크 브레이크 장치의 사시도 및 단면도이다.1 and 2 are a perspective view and a cross-sectional view of the electric disk brake device according to an embodiment of the present invention.

도시한 바와 같이, 본 실시예에 따른 전동식 디스크 브레이크 장치는 차체에 고정 설치되는 캐리어(10)와, 캐리어(10)에 이동 가능하게 결합되는 캘리퍼 하우징(20)을 포함한다. As shown, the electric disc brake apparatus according to the present embodiment includes a carrier 10 fixed to the vehicle body and a caliper housing 20 movably coupled to the carrier 10.

캐리어(10) 내에는 차량의 휠과 함께 회전하는 디스크(D)와 마찰하는 한 쌍의 마찰패드(11,12)가 진퇴이동 가능하게 설치되어 있다. 한 쌍의 마찰패드(11,12)는 서로 이격되게 설치되고, 그 사이에 디스크(D)가 배치되도록 되어 있다. 따라서, 마찰패드(11,12)가 디스크(D)를 향하여 진퇴 이동하며 제동이 이루어진다. In the carrier 10, a pair of friction pads 11 and 12 which friction with the disk D which rotates together with the wheel of the vehicle are provided so as to be movable forward and backward. The pair of friction pads 11 and 12 are spaced apart from each other, and the disk D is arranged therebetween. Accordingly, the friction pads 11 and 12 move forward and backward toward the disc D and braking is performed.

캘리퍼 하우징(20)의 일측에는 유압에 따라 진퇴 이동하며 한 쌍의 마찰패드(11,12) 중 어느 하나의 마찰패드(12)를 디스크(D)측으로 전진시켜 마찰패드(12)가 디스크(D)와 마찰하게 하는 피스톤(21)이 원통형의 실린더부(20a) 내부에 설치되어 있다. 캘리퍼 하우징(20)의 타측에는 다른 하나의 마찰패드(11)를 디스크(D)측으로 전진시켜 마찰패드(11)가 디스크(D)와 마찰하게 하는 핑거부(20b)가 형성되어 있다. One side of the caliper housing 20 moves back and forth according to the hydraulic pressure and advances one of the pair of friction pads 11 and 12 to the disk D, so that the friction pad 12 is the disk D. The piston 21 which makes friction with () is provided inside the cylindrical cylinder part 20a. On the other side of the caliper housing 20, a finger portion 20b for advancing the other friction pad 11 to the disk D side and causing the friction pad 11 to rub against the disk D is formed.

따라서 제동 시 전달되는 힘에 의해 피스톤(21)이 디스크(D)측으로 전진하며 일측 마찰패드(12)를 디스크(D)에 가압하고, 피스톤(21)과 일측 마찰패드(11) 사이에 작용하는 반력에 의해 캘리퍼 하우징(20)이 피스톤(21)의 이동 방향과 반대방향으로 이동함으로써, 캘리퍼 하우징(20)의 타측에 마련되어 있는 핑거부(20b)가 타측 마찰패드(11)를 디스크(D)에 가압하여 두 마찰패드(11,12)와 디스크(D) 사이에 작용하는 마찰력에 의해 제동이 이루어진다. Therefore, the piston 21 advances toward the disc D by the force transmitted during braking and presses one side friction pad 12 to the disc D, and acts between the piston 21 and one side friction pad 11. When the caliper housing 20 moves in a direction opposite to the movement direction of the piston 21 by the reaction force, the finger portion 20b provided on the other side of the caliper housing 20 moves the other friction pad 11 to the disk D. The brake is applied by the friction force acting between the two friction pads (11, 12) and the disk (D).

또한, 본 발명의 디스크 브레이크는 피스톤(21)을 동작시키기 위한 구동유닛(30)을 포함한다. 구동유닛(30)은 캘리퍼 하우징(20)의 실린더부(20a) 내에 회전 가능하게 마련되며 피스톤(21)의 암나사부(미도시)와 나사 결합된 작동축(31)과, 작동축(31)을 회전시키기 위한 전기모터(32)와, 다수의 기어(33a, 33b)를 포함하여 전기모터(32)의 회전축에서 발생한 동력을 작동축(31)에 전달하되, 그 회전수를 감소시켜 전달하는 감속기어조립체(33)와, 차량이 제동되기 위한 충분한 제동력이 가해진 후에 전기모터(32)의 동작을 정지시키기 위하여 일정 이상의 제동력이 전달되면 제동력을 제한하는 토크 리미터(34) 또는 과전류 차단소자(미도시)를 포함한다. 참조부호 35는 작동축(31)을 지지하기 위한 베어링이다. In addition, the disc brake of the present invention includes a drive unit 30 for operating the piston 21. The drive unit 30 is rotatably provided in the cylinder portion 20a of the caliper housing 20, and has an operating shaft 31 screwed with a female threaded portion (not shown) of the piston 21, and an operating shaft 31. The electric motor 32 and the plurality of gears (33a, 33b) for rotating the power generated in the rotating shaft of the electric motor 32 to the operating shaft 31, but reducing the number of transmission Torque limiter 34 or overcurrent cut-off element that limits the braking force if a certain amount of braking force is transmitted to stop the operation of the electric motor 32 after the reduction gear assembly 33 and the sufficient braking force for braking the vehicle are applied. City). Reference numeral 35 is a bearing for supporting the operating shaft 31.

한편, 피스톤(21)과 캘리퍼 하우징(20)의 내벽 사이에는 탄성부재(40)가 마련된다. 탄성부재(40)는 피스톤(21)이 이동하는 구간에 설치되어 피스톤(21)의 왕복 진퇴 이동에 따라 탄성력을 갖는 것으로, 탄성력을 갖는 합성수지재나 코일 스프링 등이 채용가능하다. 본 실시예에서는 코일스프링이 채용되며, 피스톤(21)이 디스크(D)로부터 이격될 때 탄성복원력을 갖는다.On the other hand, an elastic member 40 is provided between the piston 21 and the inner wall of the caliper housing 20. The elastic member 40 is installed in a section in which the piston 21 moves to have elastic force as the piston 21 reciprocates and moves, and a synthetic resin material or a coil spring having elastic force can be employed. In this embodiment, a coil spring is employed and has elastic restoring force when the piston 21 is spaced apart from the disk D. FIG.

그러면, 상기와 같이 구성된 본 발명에 따른 전동식 디스크 브레이크의 동작을 설명하기로 한다. Then, the operation of the electric disc brake according to the present invention configured as described above will be described.

먼저, 제동이 필요할 시 운전자가 페달(또는 조작스위치)을 동작시켜 전기모터(32)를 구동시키면 작동축(31)이 회전하고, 작동축(31)과 나사 결합된 피스톤(21)이 직선 운동을 한다. 그리고, 디스크(D) 측으로 이동된 피스톤(112)이 마찰패드(11,12)를 디스크(D) 측으로 밀착시킴으로써 휠의 제동이 이루어진다. 마찰패드(11,12)와 디스크(D)간의 동작은 일측의 마찰패드(12)가 먼저 디스크(D)에 밀착하게 되고, 계속되는 압력 팽창에 의해 핑거부(20b)가 타측의 마찰패드(11)를 디스크(D)에 밀착시키도록 이루어진다.First, when braking is required, when the driver operates the pedal (or the operation switch) to drive the electric motor 32, the operating shaft 31 rotates, and the piston 21 screwed with the operating shaft 31 linearly moves. Do it. And the piston 112 moved to the disk D side closes the friction pads 11 and 12 to the disk D side, and brake of a wheel is performed. In the operation between the friction pads 11 and 12 and the disk D, the friction pad 12 on one side is brought into close contact with the disk D first, and the finger portion 20b causes the friction pad 11 on the other side to be continued by pressure expansion. ) Is brought into close contact with the disk D.

한편, 전동식 디스크 브레이크 장치는 제동이 마무리되면, 전기모터(32)가 역회전하면서 마찰패드(12)가 디스크(D)가 접촉하는 지점(Contact Point)에서 대기 지점(Idle Position)으로 후진한다. 이 구간은 잔류 제동력(Residual Drag)이 발생하는 것을 방지하기 위해 마찰패드(12)를 일정량만큼 디스크(D)로부터 이격시키는 동작으로써 제동 성능과는 무관하다. 따라서, 이 구간에 맞추어 피스톤(21)과 캘리퍼 하우징(20)의 내벽 사이에 인장력을 갖는 탄성부재(40)를 설치하면, 마찰패드(12)가 대기 지점으로 이동하면서 탄성부재(40)에 의해 감속기어조립체(33)가 가압되므로, 이후 제동이 시작될 때 마찰패드(12)의 전진을 신속하게 하여 초기 작동지연을 저감할 수 있으며, 나아가 기어 결합 간 진동을 억제하여 소음(래틀 노이즈)을 저감시킬 수 있다. On the other hand, when the braking is completed, the electric disc brake device rotates backward, and the friction pad 12 moves backward to the standby position (Idle Position) at the point where the disc D contacts the disc D. This section is an operation that separates the friction pad 12 from the disk D by a predetermined amount in order to prevent the residual drag force from being generated, and is independent of the braking performance. Therefore, when the elastic member 40 having a tensile force is installed between the piston 21 and the inner wall of the caliper housing 20 according to this section, the friction pad 12 moves to the standby point by the elastic member 40. Since the reduction gear assembly 33 is pressurized, when the braking starts thereafter, the friction pad 12 can be moved forward to reduce the initial operation delay, and furthermore, the noise between the gear couplings is suppressed to reduce noise (rattle noise). You can.

이상, 상술한 본 발명의 일 실시예는 모터 직구동 방식의 전동식 디스크 브레이크 장치를 설명하였으나, 본 발명은 이에 한정되지 않는다. 예컨대, 볼-스크류 타입의 전동식 디스크 브레이크 장치에도 본 발명의 탄성부재(40)가 설치될 수 있다. 볼-스크류 타입의 경우 감속기어조립체가 셀프 락킹이 되지 않기 때문에 모터의 전원이 차단되기 전에 감속기어조립체의 회전을 방지하는 구속장치(미도시)를 포함하고 있다. 따라서, 제동 동작시에는 이 구속장치를 이용하고, 비 제동시에는 본 발명의 탄성부재(40)를 이용하여 감속기어조립체(33)에 예압이 걸리되록 함으로써 기어의 진동 소음 및 초기 작동지연을 효과적으로 저감시킬 수 있다. As mentioned above, although the above-described embodiment of the present invention has described an electric disc brake apparatus of a motor direct drive method, the present invention is not limited thereto. For example, the elastic member 40 of the present invention may be installed in the ball-screw type electric disc brake device. In the case of the ball-screw type, since the reduction gear assembly is not self-locking, it includes a restraining device (not shown) that prevents rotation of the reduction gear assembly before the power of the motor is cut off. Therefore, this restraint device is used during braking operation and the preload is applied to the reduction gear assembly 33 using the elastic member 40 of the present invention during non-braking, thereby effectively preventing vibration noise and initial operation delay of the gear. Can be reduced.

10..캐리어 11,12..마찰패드
20..캘리퍼 하우징 21..피스톤
30..구동유닛 31..작동축
32..전기모터 33..기어조립체
40..탄성부재10. Carrier 11, 12. Friction pad
20. Caliper housing 21. Piston
30. Driving unit 31. Working shaft
32. Electric motor 33. Gear assembly
40. Elastic member

Claims (2)

차체에 고정되는 캐리어와, 상기 캐리어에 진퇴이동 가능하게 설치되는 캘리퍼 하우징과, 상기 캐리어 내에 진퇴이동 가능하게 설치되며 사이에 차량의 휠과 함께 회전하는 디스크가 배치되는 한 쌍의 마찰패드와, 상기 캘리퍼 하우징에 마련된 실린더부에 진퇴이동 가능하게 설치되어 상기 한 쌍의 마찰패드 중 어느 하나를 상기 디스크로 가압하는 피스톤과, 상기 피스톤과 나사 결합되는 작동축과, 상기 작동축을 회전시키기 위한 전기모터와, 다수의 기어를 포함하여 전기모터의 회전축에서 발생한 동력을 작동축에 전달하는 기어조립체와, 상기 피스톤과 캘리퍼 하우징의 내벽 사이에 마련되어 마찰패드가 디스크로부터 이격된 제동 대기 지점에 위치할 때 상기 기어조립체가 예압을 가지도록 마련되는 탄성부재를 포함하는 것을 특징으로 하는 전동식 디스크 브레이크 장치.A pair of friction pads having a carrier fixed to the vehicle body, a caliper housing mounted on the carrier so as to move forward and backward, a disk disposed on the carrier so as to move forward and backward and rotate together with a wheel of the vehicle; A piston installed in the caliper housing so as to move forward and backward and pressurize any one of the pair of friction pads with the disk, an operating shaft screwed with the piston, and an electric motor for rotating the operating shaft; And a gear assembly including a plurality of gears for transmitting power generated from a rotating shaft of the electric motor to an operating shaft, and provided between the piston and the inner wall of the caliper housing when the friction pad is located at a braking standby point spaced from the disk. An assembly comprising an elastic member provided to have a preload. Dynamic disc brake device. 제 1항에 있어서,
상기 탄성부재는 인장 스프링인 것을 특징으로 하는 전동식 디스크 브레이크 장치.The method of claim 1,
The elastic member is an electric disc brake device, characterized in that the tension spring.
KR1020100087337A 2010-09-07 2010-09-07 Electromechanical Brake Apparatus KR101220405B1 (en)

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EP3333441A4 (en) * 2015-08-04 2018-08-22 NTN Corporation Electric braking device
KR102009349B1 (en) * 2019-03-21 2019-08-12 그린엘리베이터(주) Positional clamping and emergency braking devices for elevators
KR20200071598A (en) * 2018-12-11 2020-06-19 재단법인 포항산업과학연구원 Brake disc unit for vehicles

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KR101549995B1 (en) * 2014-09-02 2015-09-04 재단법인대구경북과학기술원 Electro mechanical brake
KR101786337B1 (en) 2016-04-29 2017-10-17 현대자동차주식회사 Electro-Mechanical Brake
CN114655177A (en) * 2020-12-23 2022-06-24 沃尔沃汽车公司 Motor vehicle brake system and method for operating same

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KR20100039072A (en) * 2008-10-07 2010-04-15 주식회사 만도 Disk brake with the onic electronic parking brake system
KR101327360B1 (en) * 2008-10-08 2013-11-11 주식회사 만도 Disc brake for vehicle

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EP3333441A4 (en) * 2015-08-04 2018-08-22 NTN Corporation Electric braking device
US10882503B2 (en) 2015-08-04 2021-01-05 Ntn Corporation Electromechanical brake system
KR20200071598A (en) * 2018-12-11 2020-06-19 재단법인 포항산업과학연구원 Brake disc unit for vehicles
KR102009349B1 (en) * 2019-03-21 2019-08-12 그린엘리베이터(주) Positional clamping and emergency braking devices for elevators

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