KR200440830Y1 - A hight sensor - Google Patents

A hight sensor Download PDF

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Publication number
KR200440830Y1
KR200440830Y1 KR2020070007998U KR20070007998U KR200440830Y1 KR 200440830 Y1 KR200440830 Y1 KR 200440830Y1 KR 2020070007998 U KR2020070007998 U KR 2020070007998U KR 20070007998 U KR20070007998 U KR 20070007998U KR 200440830 Y1 KR200440830 Y1 KR 200440830Y1
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KR
South Korea
Prior art keywords
magnet
sensor
hall sensor
rotary shaft
garage
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KR2020070007998U
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Korean (ko)
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권대혁
안현창
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주식회사 현대오토넷
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • 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
    • G01D5/16—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 by varying resistance
    • G01D5/165—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 by varying resistance by relative movement of a point of contact or actuation and a resistive track
    • G01D5/1655—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 by varying resistance by relative movement of a point of contact or actuation and a resistive track more than one point of contact or actuation on one or more tracks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/04—Suspension or damping

Abstract

본 고안은 차량의 높이를 감지하는 자동차용 차고센서에 관한 것으로서, 일단부에 레버가 결합되고 타단부에는 마그네트가 결합되는 회전샤프트를 하우징 내측에 회전 가능하게 설치하되, 상기 회전샤프트는 상기 타단부가 마그네트의 회전에 의한 자속밀도의 변화를 감지하는 홀센서의 상측면과 일정거리 이격된 상태에서 홀센서에 대해 연직방향으로 설치되게 하고, 상기 마그네트는 회전샤프트의 외주면을 감싸면서 고정 결합되게 함으로써, 회전샤프트와 마그네트의 구조가 간단하여 조립성을 향상시키고, 또한 회전샤프트와 마그네트의 결합구조가 견고하여 내구성이 증대될 뿐 아니라, 회전샤프트의 모든 회전각도(0도~360도)에서 홀센서에 의한 선형적인 출력 특성을 안정적으로 얻을 수 있는 차고센서에 관한 것이다.The present invention relates to a vehicle height sensor for detecting the height of the vehicle, a rotatable shaft coupled to one end and the other end of the magnet is rotatably installed inside the housing, the rotation shaft is the other end Is installed in a vertical direction with respect to the Hall sensor in a state spaced a certain distance from the upper surface of the Hall sensor for detecting a change in magnetic flux density due to the rotation of the magnet, the magnet is fixed to the outer circumferential surface of the rotary shaft In addition, the structure of the rotating shaft and the magnet is simple to improve the assemblability, and the combined structure of the rotating shaft and the magnet is not only increased, but also the durability is increased, and the hall sensor at all rotation angles (0 degree to 360 degrees) of the rotating shaft. The present invention relates to a garage sensor that can stably obtain linear output characteristics.

회전샤프트, 마그네트, 홀센서 Rotary shaft, magnet, hall sensor

Description

차고센서{A hight sensor}Garage Sensors {A hight sensor}

도 1은 종래의 차고센서의 단면도,1 is a cross-sectional view of a conventional garage sensor,

도 2는 본 고안의 차고센서의 단면도,2 is a cross-sectional view of the garage sensor of the present invention,

도 3은 본 고안의 차고센서의 마그네트의 횡단면도,Figure 3 is a cross-sectional view of the magnet of the garage sensor of the present invention,

도 4는 본 고안의 차고센서가 차량에 장착된 상태를 나타내는 개략도이다.Figure 4 is a schematic diagram showing a state in which the height sensor of the present invention mounted on the vehicle.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on main parts of the drawing

10,80 : 하우징 20 : 회로기판10,80 housing 20 circuit board

25,95 : 홀센서 30,90 : 회전샤프트25,95 Hall sensor 30,90 Rotating shaft

32 : 소직경부 33 : 지지부32: small diameter part 33: support part

35 : 오링 36 : 부시35: O-ring 36: Bush

40,70 : 마그네트 42 : 'N'극40,70: Magnet 42: 'N' pole

44 : 'S'극 50,85 : 레버44: 'S' pole 50,85: lever

60 : 차체 62 : 차축60: body 62: axle

63 : 바퀴 64 : 스프링63: wheel 64: spring

65 : 연결링크 92 : 마그네트결합부65: connection link 92: magnet coupling portion

본 고안은 자동차용 차고센서에 관한 것으로서, 보다 구체적으로는 일단부에 레버가 결합된 회전샤프트를 하우징 내측에 회전 가능하게 설치하되, 홀센서의 상측면에서 일정거리 이격된 상태에서 연직방향으로 설치하고, 홀센서에 인접된 회전샤프트의 단부에는 원통형 마그네트를 고정 결합함으로써, 회전샤프트와 마그네트의 구조가 간단하여 조립성을 향상시키고, 결합구조가 견고하여 회전샤프트의 모든 회전각도(0도~360도)에서 마그네트의 회전에 따른 홀센서의 선형적인 출력 특성을 안정적으로 얻을 수 있는 차고센서에 관한 것이다.The present invention relates to a garage sensor for an automobile, and more specifically, a rotary shaft coupled to a lever at one end thereof is rotatably installed inside the housing, but is installed in a vertical direction at a predetermined distance from the upper side of the hall sensor. In addition, by fixing the cylindrical magnet to the end of the rotating shaft adjacent to the hall sensor, the structure of the rotating shaft and the magnet is simple to improve the assemblability, and the coupling structure is firm so that all rotation angles of the rotating shaft (0 degree to 360 degrees) It relates to a garage sensor that can stably obtain the linear output characteristics of the Hall sensor according to the rotation of the magnet in FIG.

일반적으로 차고센서는 차량의 부하 및 속도 등에 따라 차량의 높이를 자동조절하는 전자식 에어서스펜션 시스템이나 차량의 높이에 따라 헤드라이트의 조사각을 자동 조절하는 헤드라이트 오토레벨링 시스템에 적용되는 센서로서 차체와 차축의 상대위치를 검출하여 차량의 차고 레벨을 검지하는 센서이다.Generally, the height sensor is applied to the electronic air suspension system that automatically adjusts the height of the vehicle according to the load and speed of the vehicle, or the headlight autoleveling system that automatically adjusts the irradiation angle of the headlight according to the height of the vehicle. This sensor detects the vehicle's height level by detecting the relative position of the axle.

차고센서는 차량의 높이 변화를 회전변위로 변환시키고, 이 회전변위를 전기적인 신호, 즉, 선형적으로 변하는 전압이나 PWM(pulse width modulation) 신호로 변환시켜 이를 감지함으로써 차량의 높이를 검출하게 된다.The height sensor converts the height change of the vehicle into a rotational displacement, and detects the height of the vehicle by converting the rotational displacement into an electrical signal, that is, a linearly changing voltage or pulse width modulation (PWM) signal. .

이하, 도 1을 참조하여 종래의 차고센서를 설명한다.Hereinafter, a conventional garage sensor will be described with reference to FIG. 1.

도 1은 종래의 차고센서의 단면도를 나타낸 것으로서, 차고센서는 하우징(80), 레버(85), 회전샤프트(90), 홀센서(95)로 구성된다.1 is a cross-sectional view of a conventional garage sensor, and the garage sensor includes a housing 80, a lever 85, a rotation shaft 90, and a hall sensor 95.

회전샤프트(90)는 하우징(80) 내측에 회전 가능하게 설치되는 것으로서, 하 우징(80) 외측으로 노출된 일단부에는 차축(62)(도4에 도시함)에 링크 연결되는 레버(85)가 결합되고, 타단부에는 마그네트결합부(92)가 형성된다.The rotary shaft 90 is rotatably installed inside the housing 80, and a lever 85 linked to an axle 62 (shown in FIG. 4) at one end exposed to the outside of the housing 80. Is coupled, and the other end is formed with a magnet coupling portion (92).

마그네트결합부(92)는 내부가 비어 있고 일측에 개구부가 형성된 일정 깊이의 실린더 형상으로서, 내주면 양측에는 중심을 기준으로 대향되는 위치에 일정크기의 마그네트(70)가 각각 결합된다.The magnet coupling portion 92 is a hollow cylinder shape of a predetermined depth with an opening formed on one side, and the magnets 70 having a predetermined size are coupled to opposite sides of the center on both sides of the inner circumferential surface.

홀센서(95)는 마그네트결합부(92)의 중심에 위치할 수 있게 삽입된 상태로 설치되며 이때 마그네트(70)는 홀센서(95)의 양 측면에 각각 인접되게 위치하게 된다.The hall sensor 95 is installed to be inserted in the center of the magnet coupling portion 92 and the magnet 70 is positioned adjacent to both sides of the hall sensor 95, respectively.

따라서, 홀센서(95)는 레버(85)에 의해 회전샤프트(90)와 마그네트(70)가 회전하게 되면 이때 발생하는 자속밀도의 변화를 검출하여 출력값(전압이나 PWM)을 발생시킴으로써 회전샤프트(90)의 회전에 의해 차고 높이 변화를 감지하게 되는 것이다.Accordingly, when the rotation shaft 90 and the magnet 70 rotate by the lever 85, the hall sensor 95 detects a change in magnetic flux density generated at this time and generates an output value (voltage or PWM) to generate the rotation shaft ( Rotation of 90 will detect the height change of the garage.

그러나 상기와 같은 구조의 종래의 차고센서는 다음과 같은 문제점들이 있었다.However, the conventional garage sensor having the above structure has the following problems.

첫째, 홀센서가 한쌍의 마그네트 사이의 정 중앙에 위치할 수 있도록 설치되어야 하기 때문에 홀센서와 마그네트의 정확한 위치 선정 및 설치가 용이하지 않아 조립성이 떨어지게 되며, 둘째, 회전샤프트와 마그네트의 결합이 견고하지 않아 차량의 주행 중의 진동이나 충격에 의해 쉽게 이탈될 수 있어 내구성이 떨어지게 됨으로써 안정적인 홀센서의 출력 특성을 지속적으로 얻을 수 없어 불량률이 높아지는 문제점이 있었다.First, since the Hall sensor should be installed so that it can be located in the center of a pair of magnets, the correct positioning and installation of the Hall sensor and the magnet is not easy, and assembling is poor. Second, the combination of the rotating shaft and the magnet Since it is not robust, it can be easily separated by vibration or shock while driving the vehicle, and thus durability is degraded. Therefore, a stable hall sensor output characteristic cannot be continuously obtained, thereby increasing the defective rate.

본 고안은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 일측에 레버가 결합되는 회전샤프트를 홀센서의 상측면에 대해 연직방향으로 하우징 내측에 회전 가능하게 설치하고 홀센서와 인접된 회전샤프트의 단부에는 원통형 마그네트를 끼워 결합시킴으로써, 회전샤프트와 마그네트의 구조가 간단하여 조립성이 향상될 수 있게 하고, 또한, 회전샤프트와 마그네트의 결합구조가 견고하여 내구성이 증대됨으로써 마그네트의 회전에 따른 홀센서의 안정적인 출력 특성을 얻을 수 있어 불량률을 현저히 감소시킬 수 있는 차고센서를 제공하는 것이다.The present invention has been made in order to solve the above problems, the rotary shaft coupled to the lever on one side is installed rotatably inside the housing in the vertical direction with respect to the upper surface of the hall sensor and the rotary shaft adjacent to the hall sensor By inserting the cylindrical magnet at the end, the structure of the rotating shaft and the magnet is simple, so that the assemblability can be improved, and the coupling structure of the rotating shaft and the magnet is firm and the durability is increased, so that the hall sensor according to the rotation of the magnet It is to provide a garage sensor that can obtain a stable output characteristics of the can significantly reduce the defective rate.

상기 목적을 달성하기 위하여 본 고안은 일단부에는 레버가 결합되며 하우징 내측에 회전 가능하게 설치되는 회전샤프트와 상기 회전샤프트의 타단부에 결합되는 마그네트 및 마그네트의 회전을 감지하는 홀센서가 구비된 자동차용 차고센서에 있어서, 상기 회전샤프트는 상기 타단부가 상기 홀센서의 상측면과 일정거리 이격되어 연직방향으로 설치되며. 상기 마그네트는 회전샤프트의 외주면에 고정 결합된다.In order to achieve the above object, the present invention is a vehicle having a hall coupled to a lever coupled to one end and rotatably installed inside the housing, and a magnet coupled to the other end of the rotating shaft and a hall sensor for detecting the rotation of the magnet. In the garage sensor, the rotary shaft is installed in the vertical direction, the other end is spaced apart a predetermined distance from the upper surface of the Hall sensor. The magnet is fixedly coupled to the outer circumferential surface of the rotating shaft.

또한, 상기 회전샤프트는 상기 홀센서와 인접된 단부로부터 일정거리 이격되게 외주면에 지지부를 돌출 형성하고, 상기 마그네트는 일측면이 상기 지지부에 밀착되게 회전샤프트의 외주면에 고정 결합되는 원통 형상으로 형성된다.In addition, the rotary shaft is formed to project a support portion on the outer peripheral surface spaced apart from the end adjacent to the Hall sensor by a predetermined distance, the magnet is formed in a cylindrical shape fixedly coupled to the outer peripheral surface of the rotary shaft so that one side is in close contact with the support portion. .

또, 본 고안의 상기 마그네트는 중심을 기준으로 일측부는 'N'극을 형성하고, 타측부는'S'극을 형성한다.In addition, the magnet of the present invention has a 'N' pole on one side and a 'S' pole on the other side.

이하 본 고안에 대하여 도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 고안의 차고센서의 단면도를 나타낸 것이고, 도 3은 본 고안의 마그네트의 횡단면도를 나타낸 것이다.Figure 2 shows a cross-sectional view of the height sensor of the present invention, Figure 3 shows a cross-sectional view of the magnet of the present invention.

도 2에 도시된 바와 같이, 차고센서는 하우징(10), 레버(50), 회전샤프트(30), 마그네트(40), 홀센서(25)로 구성된다.As shown in FIG. 2, the garage sensor is composed of a housing 10, a lever 50, a rotary shaft 30, a magnet 40, and a hall sensor 25.

회전샤프트(30)는 하우징(10) 내측에 회전 가능하게 설치되는 것으로서, 일단부에는 소직경부(32)가 형성되고 타단부에는 외주면을 따라 일정높이로 돌출 형성된 지지부(33)가 형성된다.Rotating shaft 30 is rotatably installed inside the housing 10, one end is formed with a small diameter portion 32, the other end is formed with a support portion 33 protruding to a certain height along the outer circumferential surface.

이때 지지부(33)는 회전샤프트(30)의 단부에서 일정거리 내측으로 이격된 위치에 형성된다.At this time, the support part 33 is formed at a position spaced inward by a predetermined distance from the end of the rotary shaft 30.

회전샤프트(30)는 홀센서(25)의 상측면에 대해 연직방향으로 하우징(10)에 회전 가능하게 설치되는 것으로서, 이때 지지부(33)가 형성된 단부는 홀센서(25)의 상측면과 일정거리 이격되게 설치된다.The rotary shaft 30 is rotatably installed in the housing 10 in a vertical direction with respect to the upper surface of the hall sensor 25, wherein an end portion at which the support part 33 is formed is constant with the upper surface of the hall sensor 25. Installed at a distance apart.

이때 회전샤프트(30)에 형성된 소직경부(32)는 하우징(10) 외측으로 노출되게 된다.At this time, the small diameter portion 32 formed on the rotary shaft 30 is exposed to the outside of the housing 10.

또한, 하우징(10)에는 회전샤프트(30)가 삽입될 수 있게 부시(36)가 설치되며, 회전샤프트(30)의 일측에는 방수를 위해 오링(35)이 결합될 수 있다.In addition, the housing 10, the bush 36 is installed so that the rotary shaft 30 can be inserted, one side of the rotary shaft 30 may be coupled to the O-ring 35 for waterproof.

따라서 회전샤프트(30)는 지지부(33)의 일측면이 부시(36)의 일측면에 밀착Therefore, the rotation shaft 30 is in close contact with one side of the support portion 33 one side of the bush (36)

될 수 있게 부시(36)에 삽입하고, 오링(35)은 회전샤프트(30)의 소직경부(32) 방향에서 끼워 결합한다.Inserted into the bush 36 so as to be possible, the O-ring 35 is fitted in the direction of the small diameter portion 32 of the rotary shaft 30 to engage.

따라서 부시(36)는 내주면이 회전샤프트(30)의 중앙부 외주면에 밀착되어 회전샤프트(30)를 지지하게 된다.Therefore, the bush 36 has an inner circumferential surface in close contact with the outer circumferential surface of the central portion of the rotating shaft 30 to support the rotating shaft 30.

한편, 레버(50)는 회전샤프트(30)와 일체로 회전될 수 있게 하우징(10) 외측으로 노출된 회전샤프트(30)의 소직경부(32)가 일측에 압입 결합되고, 타측은 차축(62)(도4에 도시함)에 링크로 연결되게 된다.On the other hand, the lever 50 is a small diameter portion 32 of the rotary shaft 30 exposed to the outside of the housing 10 to be rotated integrally with the rotary shaft 30 is press-fit to one side, the other side is the axle 62 (Shown in FIG. 4) is linked.

마그네트(40)는 도 3에 도시된 바와 같이, 원통 형상으로서 중심을 기준으로 일측은 'N'극(42)이 형성되고, 타측은 'S'극(44)이 형성된다.As shown in FIG. 3, the magnet 40 has a cylindrical shape and an 'N' pole 42 is formed at one side of the center, and an 'S' pole 44 is formed at the other side thereof.

마그네트(40)는 회전샤프트(30)의 지지부(33)가 형성된 단부에 끼워져 결합되는 것으로서 이때 접착제 등을 이용하여 고정시킬 수 있다.The magnet 40 is fitted to the end portion formed with the support 33 of the rotary shaft 30 can be fixed using an adhesive or the like.

한편, 홀센서(25)는 마그네트(40)로부터 발생되는 자력선의 세기 즉, 자속밀도의 변화량을 검출하는 것으로서 마그네트(40)가 결합된 회전샤프트(30)의 단부와 일정거리 이격된 상태로 회로기판(20)상에 설치된다.On the other hand, the Hall sensor 25 detects the strength of the magnetic force lines generated from the magnet 40, that is, the amount of change in the magnetic flux density, and the circuit is spaced apart from the end portion of the rotary shaft 30 to which the magnet 40 is coupled. It is provided on the board | substrate 20.

이때 홀센서(25)는 마그네트(40)의 회전에 의한 자속밀도의 변화에 대응되게 내부 저항이 선형적으로 변화됨으로써 회전샤프트(30)의 회전을 감지하게 되는 것이다.At this time, the hall sensor 25 detects the rotation of the rotary shaft 30 by changing the internal resistance linearly to correspond to the change of the magnetic flux density due to the rotation of the magnet 40.

이하, 본 고안의 작동과정을 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail.

도 4는 본 고안의 차고센서가 차량에 장착된 상태를 나타내는 개략도이다.Figure 4 is a schematic diagram showing a state in which the height sensor of the present invention mounted on the vehicle.

도시된 바와 같이, 차량의 바퀴(63)에 결합된 차축(62)의 일측에는 연결링 크(65)의 일단이 회전 가능하게 결합되고, 연결링크(65)의 타단은 레버(50)와 회전 가능하게 연결된다.As shown, one end of the connecting link 65 is rotatably coupled to one side of the axle 62 coupled to the wheel 63 of the vehicle, and the other end of the connecting link 65 rotates with the lever 50. Possibly connected.

한편, 하우징(10)은 차체(60)에 결합되게 된다.On the other hand, the housing 10 is to be coupled to the vehicle body 60.

먼저, 차량의 주행 중 지면 상태나 차량에 가해진 부하 또는 속도 등에 의해 스프링(64)이 압축되거나 인장되게 되면 바퀴(63)에 연결된 차축(62)이 상,하로 움직이게 되고, 차축(62)의 상,하 운동은 연결링크(65)에 의해 레버(50)의 회전 운동으로 전환되게 된다.First, when the spring 64 is compressed or tensioned due to ground conditions or a load or speed applied to the vehicle, the axle 62 connected to the wheels 63 moves up and down, and the top of the axle 62 The lower motion is converted into the rotational motion of the lever 50 by the connecting link (65).

회전샤프트(30)는 레버(50)와 결합되어 있어 레버(50)가 회전하게 되면 이에 연동되어 레버(50)와 함께 일체로 회전되게 되고, 이때 회전샤프트(30)의 회전에 의해 마그네트(40)도 동시에 회전되게 되어 마그네트(40)에서 발생되는 자속밀도에 변화가 발생되게 된다.The rotary shaft 30 is coupled to the lever 50 so that when the lever 50 rotates, it is interlocked with the lever 50 so as to be integrally rotated. At this time, the magnet 40 is rotated by the rotation shaft 30. ) Is also rotated at the same time will cause a change in the magnetic flux density generated in the magnet (40).

홀센서(25)는 마그네트(40)의 자속밀도의 변화를 감지하게 되고 내부저항이 이에 대응되어 변하게 되는 것이다.The hall sensor 25 detects a change in the magnetic flux density of the magnet 40 and the internal resistance changes correspondingly.

따라서 홀센서(25)는 마그네트(40)의 자속밀도 변화에 대응되게 전압이나 PWM으로 출력을 하게 되고, 에어서스펜션 시스템이나 오토레벨링 시스템의 제어부(도시하지 않음)가 이를 감지하여 차량의 높이를 판단하게 되는 것이다.Accordingly, the hall sensor 25 outputs a voltage or PWM corresponding to the magnetic flux density change of the magnet 40, and the controller (not shown) of the air suspension system or the auto leveling system detects the height and determines the height of the vehicle. Will be done.

따라서, 본 고안의 차고센서는 회전샤프트(30)의 단부에 원통형 마그네트(40)를 결합시킴으로써 결합구조가 간단하고 견고하여 조립성이 향상될 뿐 아니라, 내구성이 증대되어 홀센서(25)의 안정적인 출력 특성을 지속적으로 얻을 수 있게 되는 것이다.Therefore, the garage sensor of the present invention is coupled to the end of the rotary shaft 30 by the cylindrical magnet 40, the coupling structure is simple and robust, as well as the assemblability is improved, the durability is increased, the stable of the hall sensor 25 The output characteristic can be obtained continuously.

이상, 상기의 실시 예는 단지 설명의 편의를 위해 예시로서 설명한 것에 불과하므로 실용신안등록청구범위를 한정하는 것은 아니다.As mentioned above, since the above embodiments are merely described as examples for convenience of description, they do not limit the utility model registration claims.

이상에서 설명한 바와 같이, 본 고안은 회전샤프트를 홀센서의 상측면에 대해 연직방향으로 설치하고 홀센서와 인접된 회전샤프트의 단부에 원통형의 마그네트를 결합시킴으로써 회전샤프트와 마그네트의 구조가 간단하여 조립성 향상에 따른 제조원가의 절감 효과가 있고, 또한 회전샤프트와 마그네트의 결합구조가 견고하여 내구성이 증대됨으로써 홀센서의 안정적인 출력 특성을 지속적으로 얻을 수 있어 불량률을 현저히 감소시킬 수 있는 효과가 있다.As described above, the present invention installs the rotary shaft in the vertical direction with respect to the upper surface of the hall sensor and combines the cylindrical magnet to the end of the rotary shaft adjacent to the hall sensor to simplify the structure of the rotary shaft and the magnet. There is an effect of reducing the manufacturing cost by improving the performance, and also because the coupling structure of the rotary shaft and the magnet is increased to increase the durability, it is possible to continuously obtain a stable output characteristics of the Hall sensor can significantly reduce the defective rate.

Claims (3)

일단부에는 레버가 결합되며 하우징 내측에 회전 가능하게 설치되는 회전샤프트와 상기 회전샤프트의 타단부에 결합되는 마그네트 및 마그네트의 회전을 감지하는 홀센서가 구비된 자동차용 차고센서에 있어서,In a garage sensor for an automobile having a lever coupled to one end and rotatably installed inside the housing, and a magnet coupled to the other end of the rotating shaft and a hall sensor for detecting rotation of the magnet, 상기 회전샤프트는 상기 타단부가 상기 홀센서의 상측면과 일정거리 이격되어 홀센서에 대해 연직방향으로 설치되며, 상기 마그네트는 상기 회전샤프트의 타단부 외주면에 끼워져 결합되는 것을 특징으로 하는 자동차용 차고센서.The rotary shaft is installed in the vertical direction with respect to the Hall sensor, the other end is spaced apart from the upper surface of the Hall sensor, the magnet is fitted to the outer peripheral surface of the other end of the rotary shaft coupled to the garage. sensor. 제 1항에 있어서,The method of claim 1, 상기 회전샤프트는 상기 홀센서와 인접된 단부에서 일정거리 이격되게 외주면에 지지부를 돌출 형성하고, 상기 마그네트는 일측면이 상기 지지부에 밀착되게 회전샤프트의 외주면에 고정 결합되는 원통 형상인 것을 특징으로 하는 자동차용 차고센서.The rotating shaft is formed to protrude a support portion on the outer peripheral surface spaced apart a predetermined distance from the end adjacent to the hall sensor, the magnet is characterized in that the cylindrical shape is fixed to the outer peripheral surface of the rotary shaft so that one side is in close contact with the support portion. Automotive Garage Sensors. 제 2항에 있어서,The method of claim 2, 상기 마그네트는 중심을 기준으로 일측부는 'N'극을 형성하고, 타측부는'S'극을 형성하는 것을 특징으로 하는 자동차용 차고센서.The magnet is a garage sensor for an automobile, characterized in that one side forms an 'N' pole and the other side forms an 'S' pole based on the center.
KR2020070007998U 2007-05-16 2007-05-16 A hight sensor KR200440830Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102887043A (en) * 2011-07-20 2013-01-23 Lg伊诺特有限公司 Height sensor module for vehicle
KR101409227B1 (en) * 2013-02-19 2014-06-18 한국오므론전장 주식회사 Combining Structure of Height Sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102887043A (en) * 2011-07-20 2013-01-23 Lg伊诺特有限公司 Height sensor module for vehicle
EP2549235A3 (en) * 2011-07-20 2014-07-30 LG Innotek Co., Ltd. Height sensor module for vehicle
US8907663B2 (en) 2011-07-20 2014-12-09 Lg Innotek Co., Ltd. Height sensor module for a vehicle with sealing structure
KR101409227B1 (en) * 2013-02-19 2014-06-18 한국오므론전장 주식회사 Combining Structure of Height Sensor

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