KR100987301B1 - Method for manufacturing a wheel speed sensor - Google Patents

Method for manufacturing a wheel speed sensor Download PDF

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Publication number
KR100987301B1
KR100987301B1 KR1020080105319A KR20080105319A KR100987301B1 KR 100987301 B1 KR100987301 B1 KR 100987301B1 KR 1020080105319 A KR1020080105319 A KR 1020080105319A KR 20080105319 A KR20080105319 A KR 20080105319A KR 100987301 B1 KR100987301 B1 KR 100987301B1
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South Korea
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insert
wheel speed
manufacturing
wheel
speed sensor
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KR1020080105319A
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Korean (ko)
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KR20100046470A (en
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윤한수
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주식회사 일진글로벌
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/147—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

본 발명은 자동차의 ABS에서 휠의 속도를 감지하기 위해서 홀소자를 인서트와 영구자석의 사이에 배치하여 홀소자의 손상을 방지하는 휠스피드 센서의 제조방법에 관한 것이다. 본 발명의 일 실시예에 따른 휠스피드 센서의 제조방법은 터미널을 포함하는 인서트를 제조하는 공정과, 상기 인서트에 홀소자를 장착하는 공정과, 상기 홀소자가 상기 인서트에 고정되도록 영구자석을 상기 인서트에 압입하는 공정과, 상기 홀소자 및 영구자석이 결합된 인서트를 오버몰딩 하는 공정을 포함한다.The present invention relates to a manufacturing method of the wheel speed sensor for preventing the damage of the Hall element by placing the Hall element between the insert and the permanent magnet in order to detect the speed of the wheel in the ABS of the vehicle. According to an aspect of the present invention, there is provided a method of manufacturing a wheel speed sensor, a method of manufacturing an insert including a terminal, a process of mounting a hole element on the insert, and a permanent magnet on the insert to fix the hole element to the insert. And a step of over-molding the insert combined with the hole element and the permanent magnet.

휠스피드, 홀소자, 톤휠, ABS, 센서, 센서링 Wheel speed, Hall element, tone wheel, ABS, sensor, sensor ring

Description

휠스피드 센서의 제조방법{METHOD FOR MANUFACTURING A WHEEL SPEED SENSOR}Manufacturing method of wheel speed sensor {METHOD FOR MANUFACTURING A WHEEL SPEED SENSOR}

본 발명은 휠스피드 센서의 제조방법에 관한 것으로, 구체적으로는 자동차의 ABS(anti-lock brake system)에서 휠의 속도를 감지하기 위해서 홀소자를 인서트와 영구자석의 사이에 배치하여 홀소자의 손상을 방지하는 휠스피드 센서의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a wheel speed sensor, specifically, in order to detect the speed of a wheel in an anti-lock brake system (ABS) of a vehicle, a Hall element is disposed between an insert and a permanent magnet to prevent damage to the Hall element. It relates to a manufacturing method of the wheel speed sensor.

자동차의 ABS는 운전자가 브레이크를 작동시킬 때 자동차가 전복되거나 회전하는 것을 방지하기 위해 자동차가 주행중에 차륜이 브레이크에 의해 완전히 잠기는 것을 방지하기 위한 시스템이다. ABS는 4개의 차륜이 동일한 속도를 유지하면서 감속되도록 제어하기 위해, 차륜의 속도를 감지하기 위한 휠스피드 센서가 필요하다. 휠스피드 센서는 차륜의 회전축에 결합된 톤휠(tonewheel)의 회전속도를 측정하는데 사용된다. 톤휠은 차륜과 함께 회전하며, 휠스피드 센서는 톤휠이 회전하면서 발생되는 유도 자기장의 변화를 감지하고 이를 차륜의 회전수로 환산하여 차륜의 속도를 감지할 수 있다. ABS는 이와 같이 감지된 차륜의 속도정보를 이용하여 각 차륜의 감속을 제어한다.The ABS of the vehicle is a system for preventing the wheel from being completely locked by the brake while the vehicle is being driven to prevent the vehicle from overturning or turning when the driver activates the brake. ABS requires wheel speed sensors to detect the speed of the wheels in order to control the four wheels to decelerate while maintaining the same speed. Wheel speed sensors are used to measure the rotational speed of a tonewheel coupled to the wheel's axis of rotation. The tone wheel rotates together with the wheel, and the wheel speed sensor detects a change in the induced magnetic field generated by the rotation of the tone wheel and converts it into the number of revolutions of the wheel to detect the speed of the wheel. The ABS controls the deceleration of each wheel by using the detected speed information of the wheel.

도 1은 종래의 휠스피드 센서의 단면도이고, 도 2는 도 1의 휠스피드 센서의 제조방법을 보인 블록도이다. 도 3은 도 1의 휠스피드 센서의 일부 구성요소를 보인 분해사시도이고, 도 4는 도 3의 구성요소가 결합된 상태를 보인 단면도이다.1 is a cross-sectional view of a conventional wheel speed sensor, Figure 2 is a block diagram showing a manufacturing method of the wheel speed sensor of FIG. 3 is an exploded perspective view illustrating some components of the wheel speed sensor of FIG. 1, and FIG. 4 is a cross-sectional view illustrating a state in which the components of FIG. 3 are coupled.

도 1을 참조하면, 휠스피드 센서(10)는 차륜과 함께 회전하는 톤휠(1)과, 톤휠(1)에 자기장을 형성하기 위한 영구자석(2)과, 영구자석(2)에서 형성된 자기장이 톤휠(1)의 회전에 의해 변화하는 것을 감지하기 위한 홀소자(3)를 포함한다. 휠스피드 센서(10)의 제조방법은 스테이킹(staking)부(4a, 도 3 참조)와 터미널(4b)을 포함하는 인서트(4)를 제조하는 공정과, 영구자석(2)을 인서트(4)에 장착하는 공정과, 영구자석(2)에 인접하여 인서트(4)에 홀소자(3)를 장착하는 공정과, 영구자석(2)과 홀소자(3)를 인서트(4)에 고정시키기 위해 인서트(4)에 형성된 스테이킹부(4a)를 핫스테이킹(hot staking)하는 공정과, 영구자석(2)과 홀소자(3)가 고정된 인서트(4)를 오버몰딩(overmolding)하는 공정을 포함한다.Referring to FIG. 1, the wheel speed sensor 10 includes a tone wheel 1 rotating together with a wheel, a permanent magnet 2 for forming a magnetic field in the tone wheel 1, and a magnetic field formed in the permanent magnet 2. Hall element 3 for detecting the change by the rotation of the tone wheel (1). The manufacturing method of the wheel speed sensor 10 includes a process of manufacturing an insert 4 including a staking part 4a (see FIG. 3) and a terminal 4b, and inserting the permanent magnet 2 into an insert 4 ), Attaching the hole element 3 to the insert 4 adjacent to the permanent magnet 2, and fixing the permanent magnet 2 and the hall element 3 to the insert 4. Hot staking the staking portion 4a formed on the insert 4, and overmolding the insert 4 to which the permanent magnet 2 and the hall element 3 are fixed. It includes.

하지만, 종래의 휠스피드 센서의 제조방법은 핫스테이킹 공정에서 고온에 의해 홀소자(3)가 손상되고, 또한 오버몰딩 공정에서 고온 고압이 홀소자(3)에 가해져 홀소자(3)가 손상되는 문제점이 있다.However, in the conventional manufacturing method of the wheel speed sensor, the Hall element 3 is damaged by the high temperature in the hot stake process, and the high temperature and high pressure is applied to the Hall element 3 in the overmolding process, thereby damaging the Hall element 3. There is a problem.

또한, 휠스피드 센서의 정확한 속도감지를 위해서는 톤휠(1)과 홀소자(3) 사이의 공극(air gap)이 소정의 규격을 충족해야 한다. 하지만, 오버몰딩 공정에서 홀소자(3)에 성형된 사출물의 두께를 정밀하게 관리하는 것이 난해한 문제점이 있다.In addition, in order to accurately sense the speed of the wheel speed sensor, an air gap between the tone wheel 1 and the hall element 3 must satisfy a predetermined standard. However, in the overmolding process, it is difficult to precisely manage the thickness of the injection molded product in the hall element 3.

본 발명은 위와 같은 문제점을 해결하기 위한 것으로, 본 발명은 자동차의 ABS에서 휠의 속도를 감지하기 위해서 홀소자를 인서트와 영구자석의 사이에 배치하여 홀소자의 손상을 방지하는 휠스피드 센서의 제조방법을 제공한다.The present invention is to solve the above problems, the present invention is to provide a manufacturing method of the wheel speed sensor to prevent damage to the Hall element by placing the Hall element between the insert and the permanent magnet in order to detect the speed of the wheel in the ABS of the vehicle to provide.

본 발명의 일 실시예에 따른 휠스피드 센서의 제조방법은 터미널을 포함하는 인서트를 제조하는 공정과, 상기 인서트에 홀소자를 장착하는 공정과, 상기 홀소자가 상기 인서트에 고정되도록 영구자석을 상기 인서트에 압입하는 공정과, 상기 홀소자 및 영구자석이 결합된 인서트를 오버몰딩 하는 공정을 포함한다.According to an aspect of the present invention, there is provided a method of manufacturing a wheel speed sensor, a method of manufacturing an insert including a terminal, a process of mounting a hole element on the insert, and a permanent magnet on the insert to fix the hole element to the insert. And a step of over-molding the insert combined with the hole element and the permanent magnet.

본 발명의 일 실시예에 따른 휠스피드 센서의 제조방법에 의하면, 영구자석을 인서트에 압입하여 홀소자를 고정하므로 핫스테이킹 공정이 생략되어, 제조원가 및 제조시간을 절감할 수 있으며 핫스테이킹 공정에서 발생하는 홀소자의 손상을 방지할 수 있다. 또한, 고온 고압하에서 진행되는 오버몰딩 공정에서 영구자석이 홀소자의 커버 역할을 하여 홀소자가 사출물에 직접적으로 노출되지 않으므로 고온 고압에 의한 홀소자의 손상을 방지할 수 있다. 인서트의 제조시 인서트의 두께를 정밀하게 조절함으로써 톤휠과 홀소자 사이의 공극을 미리 확보할 수 있다.According to the manufacturing method of the wheel speed sensor according to an embodiment of the present invention, since the permanent magnet is pressed into the insert to fix the hall element, the hot staking process is omitted, thereby reducing manufacturing cost and manufacturing time, and in the hot staking process. It is possible to prevent damage to generated Hall elements. In addition, since the permanent magnet serves as a cover of the Hall element in the overmolding process performed under high temperature and high pressure, the Hall element is not directly exposed to the injection product, thereby preventing damage to the Hall element due to the high temperature and high pressure. By precisely adjusting the thickness of the insert in the manufacture of the insert, it is possible to secure the gap between the tone wheel and the hall element in advance.

이하, 본 발명의 일 실시예에 따른 휠스피드 센서의 제조방법을 상세하게 설 명한다.Hereinafter, the manufacturing method of the wheel speed sensor according to an embodiment of the present invention will be described in detail.

도 5는 본 발명의 일 실시예에 따른 휠스피드 센서의 단면도이다. 5 is a cross-sectional view of a wheel speed sensor according to an embodiment of the present invention.

도 5를 참조하면, 휠스피드 센서(100)는 케이스(150)와, 차륜과 함께 회전하는 톤휠(140, tonewheel)과, 톤휠(140)에 자기장을 형성하기 위한 영구자석(110, magnet)과, 영구자석(110)에서 형성된 자기장이 톤휠(140)의 회전에 의해 변화하는 것을 감지하기 위한 홀소자(120, hall IC)를 포함한다.Referring to FIG. 5, the wheel speed sensor 100 includes a case 150, a tone wheel 140 rotating together with a wheel, a permanent magnet 110 for forming a magnetic field in the tone wheel 140, and a magnet. In addition, the magnetic field formed in the permanent magnet 110 includes a hall IC (120, hall IC) for detecting the change by the rotation of the tone wheel 140.

도 6은 도 5의 휠스피드 센서의 제조방법을 보인 블록도이다. 도 7은 도 5의 휠스피드 센서의 일부 구성요소를 보인 분해사시도이고, 도 8은 도 7의 구성요소가 결합된 상태를 보인 단면도이다.6 is a block diagram illustrating a method of manufacturing the wheel speed sensor of FIG. 5. FIG. 7 is an exploded perspective view illustrating some components of the wheel speed sensor of FIG. 5, and FIG. 8 is a cross-sectional view illustrating a state in which the components of FIG. 7 are coupled.

도 6을 참조하면, 본 발명의 휠스피드 센서의 제조방법은 터미널(131)을 포함하는 인서트(130)를 제조하는 공정과, 인서트(130)에 홀소자(120)를 장착하는 공정과, 홀소자(120)가 인서트(130)에 고정되도록 영구자석(110)을 인서트(130)에 압입하는 공정과, 홀소자(120) 및 영구자석(110)이 결합된 인서트(130)를 오버몰딩 하는 공정을 포함한다.Referring to FIG. 6, the method of manufacturing the wheel speed sensor according to the present invention includes a process of manufacturing the insert 130 including the terminal 131, a process of mounting the hall element 120 in the insert 130, and a hole. Pressing the permanent magnet 110 into the insert 130 so that the device 120 is fixed to the insert 130, and overmolding the insert 130 is coupled to the Hall element 120 and the permanent magnet 110 Process.

도 7에 도시한 바와 같이, 인서트(130)는 터미널(131)을 가지며 영구자석(110)과 홀소자(120)를 수용하도록 홈을 구비한다. 인서트(130)의 일부는 오버몰딩 공정에서 사출물에 의해 케이스(150)를 형성한다. 휠스피드를 정확하게 감지하기 위해서는 인서트(130)는 홀소자(120)가 수용되어 톤휠(140)과 소정의 공극(air gap)을 유지해야 한다. 이를 위해, 홀소자(120)가 수용되는 인서트(130) 부분의 두께는 인서트 제조공정에서 정밀하게 조절될 수 있다. 따라서, 홀소 자(120)와 톤휠(110) 사이의 공극을 미리 확보할 수 있다.As shown in FIG. 7, the insert 130 has a terminal 131 and has a groove for accommodating the permanent magnet 110 and the hall element 120. A portion of the insert 130 forms the case 150 by injection molding in the overmolding process. In order to accurately detect the wheel speed, the insert 130 must accommodate the hall element 120 to maintain a predetermined air gap with the tone wheel 140. To this end, the thickness of the portion of the insert 130 in which the hall element 120 is accommodated can be precisely adjusted in the insert manufacturing process. Therefore, it is possible to secure the gap between the hole element 120 and the tone wheel 110 in advance.

영구자석(110)은 자기장을 형성하는 기능을 한다. 본 발명에서 영구자석(110)은 인서트(130)에 압입되어 홀소자(120)를 고정하므로, 핫스테이킹(hot staking)과 같은 부수적인 공정이 요구되지 않는다. 따라서, 핫스테이킹 공정에서 홀소자(120)가 고온에 의해 손상되는 것을 방지할 수 있다. 또한, 도 8에 도시한 바와 같이, 영구자석(110)은 오버몰딩시 홀소자(120)가 고온 고압의 사출물에 노출되지 않도록 커버 역할을 하므로 홀소자(120)의 손상을 더욱 방지할 수 있다.The permanent magnet 110 functions to form a magnetic field. In the present invention, since the permanent magnet 110 is pressed into the insert 130 to fix the hall element 120, an additional process such as hot staking is not required. Therefore, it is possible to prevent the Hall element 120 from being damaged by the high temperature in the hot staking process. In addition, as shown in FIG. 8, the permanent magnet 110 serves as a cover to prevent the Hall device 120 from being exposed to high-temperature and high-pressure injection molding during overmolding, thereby further preventing damage to the Hall device 120. .

홀소자(120)는 홀효과를 이용한 자전변환소자이다. 홀소자(120)는 홀효과가 큰 인듐안티모나이드, 인듐아세나이드, 게르마늄, 실리콘 등의 반도체로 구성될 수 있다. 홀소자(120)는 영구자석(110)에 의해 형성된 자기장의 세기를 측정할 수 있으며, 특히 톤휠(140)의 형상 및 회전속도에 따라 자기장 세기의 변화를 측정함으로써 휠스피드를 측정하는 기능을 한다.Hall element 120 is a rotation conversion element using the Hall effect. The hall element 120 may be formed of a semiconductor such as indium antimonide, indium arsenide, germanium, or silicon having a large Hall effect. Hall element 120 may measure the strength of the magnetic field formed by the permanent magnet 110, in particular to measure the wheel speed by measuring the change in the magnetic field strength according to the shape and rotation speed of the tone wheel 140. .

오버몰딩 공정은 인서트(130)를 적절한 고정장치에 의해 금형내에 고정하고 사출물을 고온 고압으로 주입하여 휠스피드 센서(100)의 최종형상을 만드는 것이다.The overmolding process is to fix the insert 130 into the mold by a suitable fixing device and inject the injection product at high temperature and high pressure to make the final shape of the wheel speed sensor 100.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능하다는 것이 본 발명이 속하는 분야에서 통상의 지식을 가진 자에게 있어서 명백할 것이다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will be clear to those who have knowledge of.

도 1은 종래의 휠스피드 센서의 단면도이다.1 is a cross-sectional view of a conventional wheel speed sensor.

도 2는 도 1의 휠스피드 센서의 제조방법을 보인 블록도이다.FIG. 2 is a block diagram illustrating a method of manufacturing the wheel speed sensor of FIG. 1.

도 3은 도 1의 휠스피드 센서의 일부 구성요소를 보인 분해사시도이다.3 is an exploded perspective view showing some components of the wheel speed sensor of FIG.

도 4는 도 3의 구성요소가 결합된 상태를 보인 단면도이다.4 is a cross-sectional view illustrating a state in which the components of FIG. 3 are coupled.

도 5는 본 발명의 일 실시예에 따른 휠스피드 센서의 단면도이다.5 is a cross-sectional view of a wheel speed sensor according to an embodiment of the present invention.

도 6은 도 5의 휠스피드 센서의 제조방법을 보인 블록도이다.6 is a block diagram illustrating a method of manufacturing the wheel speed sensor of FIG. 5.

도 7은 도 5의 휠스피드 센서의 일부 구성요소를 보인 분해사시도이다.FIG. 7 is an exploded perspective view illustrating some components of the wheel speed sensor of FIG. 5.

도 8은 도 7의 구성요소가 결합된 상태를 보인 단면도이다.8 is a cross-sectional view illustrating a state in which the components of FIG. 7 are coupled.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100 : 휠스피드 센서100: Wheel speed sensor

110 : 영구자석110: permanent magnet

120 : 홀소자120: Hall element

130 : 인서트130: Insert

140 : 톤휠140: tone wheel

150 : 케이스150: case

Claims (1)

터미널을 포함하는 인서트를 제조하는 공정과,A process of manufacturing an insert comprising a terminal, 상기 인서트에 홀소자를 장착하는 공정과,Mounting a hole element on the insert; 상기 홀소자가 상기 인서트에 고정되도록 영구자석을 상기 인서트에 압입하는 공정과, Inserting a permanent magnet into the insert such that the hall element is fixed to the insert; 상기 홀소자 및 영구자석이 결합된 인서트를 오버몰딩 하는 공정을 포함하는And overmolding the insert in which the hall element and the permanent magnet are combined. 휠스피드 센서의 제조방법.Method for manufacturing a wheel speed sensor.
KR1020080105319A 2008-10-27 2008-10-27 Method for manufacturing a wheel speed sensor KR100987301B1 (en)

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KR100987301B1 true KR100987301B1 (en) 2010-10-13

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0165713B1 (en) * 1995-06-26 1999-03-20 기따오까 다까시 Rotation sensor and method for manufacturing the same
KR100577985B1 (en) 2004-05-07 2006-05-11 이서남 Speed sensor for use of car

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0165713B1 (en) * 1995-06-26 1999-03-20 기따오까 다까시 Rotation sensor and method for manufacturing the same
KR100577985B1 (en) 2004-05-07 2006-05-11 이서남 Speed sensor for use of car

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