KR200444284Y1 - A hight sensor with static electricity interception device - Google Patents

A hight sensor with static electricity interception device Download PDF

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Publication number
KR200444284Y1
KR200444284Y1 KR2020070019285U KR20070019285U KR200444284Y1 KR 200444284 Y1 KR200444284 Y1 KR 200444284Y1 KR 2020070019285 U KR2020070019285 U KR 2020070019285U KR 20070019285 U KR20070019285 U KR 20070019285U KR 200444284 Y1 KR200444284 Y1 KR 200444284Y1
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South Korea
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bush
sub
sensor
main
static electricity
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KR2020070019285U
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Korean (ko)
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안현창
김상국
박민하
김우용
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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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/02—Carrying-off electrostatic charges by means of earthing connections

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

본 고안은 차량의 높이를 감지하는 자동차용 차고센서에 관한 것으로서, 하우징 내측에 회전 가능하게 설치되는 회전샤프트와, 상기 회전샤프트에 설치되는 메인부쉬와, 고정브래킷이 결합되는 써브부쉬 및 홀센서가 구비된 회로기판을 포함하여 구성하되, 상기 메인부쉬와 써브부쉬를 통전시키는 연결부재를 구비하여 외부에서 회전샤프트로 유입되는 정전기가 홀센서를 직접 관통하지 않고 메인부쉬와 써브부쉬를 통해 고정브래킷으로 전달되게 함으로써, 정전기로부터 홀센서를 보호하여 차고센서의 정전기에 대한 내구성을 증대시키고 또한 오작동을 방지할 수 있는 자동차용 정전기 방지 차고센서에 관한 것이다.The present invention relates to a car height sensor for detecting the height of the vehicle, the rotating shaft rotatably installed inside the housing, the main bush is installed on the rotating shaft, the sub-bush and the hall sensor coupled to the bracket It is configured to include a circuit board provided, provided with a connecting member for energizing the main bush and the sub-bush, the static electricity flowing into the rotary shaft from the outside does not directly pass through the Hall sensor to the fixed bracket through the main bush and the sub-bush The present invention relates to an antistatic garage sensor for automobiles, which protects the hall sensor from static electricity, thereby increasing durability of the garage sensor against static electricity and also preventing malfunction.

차고센서, 회전샤프트, 정전기 Garage sensor, rotary shaft, static electricity

Description

정전기 방지 차고센서{A hight sensor with static electricity interception device}A hight sensor with static electricity interception device}

본 고안은 차량의 높이를 감지하는 자동차용 차고센서에 관한 것으로서, 보다 구체적으로는 하우징 내측에 설치되는 회전샤프트의 외주면에 구비된 메인부쉬와 고정브래킷이 결합되는 써브부쉬가 서로 연결되어 통전 가능하도록 연결부재를 구비하여 외부에서 회전샤프트로 유입되는 정전기가 메인부쉬와 연결부재 및 써브부쉬를 통해 고정브래킷으로 전달되게 함으로써, 정전기가 홀센서를 우회하여 차체로 흘러갈 수 있게 하여 차고센서의 정전기에 대한 내구성을 향상시키고 또한 오작동을 방지할 수 있는 정전기 방지 차고센서에 관한 것이다.The present invention relates to a vehicle height sensor for detecting the height of the vehicle, and more specifically, so that the main bush provided on the outer circumferential surface of the rotating shaft installed inside the housing and the sub-bush coupled to the fixing bracket are connected to each other to enable electricity. It is equipped with a connecting member so that the static electricity flowing into the rotating shaft from the outside is transferred to the fixed bracket through the main bush, the connecting member and the sub bush, so that the static electricity can flow to the vehicle body by bypassing the hall sensor to the static electricity of the garage sensor. The present invention relates to an antistatic garage sensor that can improve durability and prevent malfunction.

일반적으로 차고센서 및 각도센서는 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 and the angle sensor are applied to an electronic air suspension system that automatically adjusts the height of the vehicle according to the load and speed of the vehicle, or a headlight autoleveling system that automatically adjusts the irradiation angle of the headlight according to the height of the vehicle. The sensor detects the vehicle's height level by detecting the relative position of the vehicle body and 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. .

이때 홀센서는 회전샤프트와 함께 회전되는 마그네트에 의한 자속밀도의 변화를 감지하게 된다.At this time, the Hall sensor detects a change in magnetic flux density due to the magnet rotating together with the rotating shaft.

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

도 1은 종래의 차고센서의 단면도를 나타낸 것으로서, 차고센서는 하우징(1), 레버(40), 회전샤프트(10), 마그네트(30) 및 홀센서(25)가 설치된 회로기판(20)으로 구성된다.1 is a cross-sectional view of a conventional garage sensor, and the garage sensor is a circuit board 20 provided with a housing 1, a lever 40, a rotary shaft 10, a magnet 30, and a hall sensor 25. It is composed.

회전샤프트(10)의 일단부에는 차축(도시하지 않음)에 링크 연결되는 레버(40)가 결합되고, 타단부에는 마그네트(30)가 결합된다.One end of the rotary shaft 10 is coupled to the lever 40, which is linked to the axle (not shown), the other end is coupled to the magnet 30.

회전샤프트(10)는 홀센서(25)의 상측면에 대해 연직방향으로 하우징(1)에 회전 가능하게 설치되는 것으로서, 이때 마그네트(30)가 결합된 일단부는 홀센서(25)의 상측면과 일정거리 이격되게 설치된다.The rotary shaft 10 is rotatably installed in the housing 1 in a vertical direction with respect to the upper surface of the hall sensor 25, wherein one end of the magnet 30 is coupled to the upper surface of the hall sensor 25. Installed a certain distance apart.

홀센서(25)는 하우징(1)에 설치되는 회로기판(20)상에 구비되며, 회로기판(20)의 일측에는 외부에서 회전샤프트(10)를 통해 유입되는 정전기(static electricity)가 차체로 흘러갈 수 있도록 차체와 연결되는 접지단자(27)가 구비된다.The hall sensor 25 is provided on the circuit board 20 installed in the housing 1, and on one side of the circuit board 20, static electricity introduced through the rotary shaft 10 from the outside is transferred to the vehicle body. A ground terminal 27 connected to the vehicle body is provided to flow therethrough.

따라서 외부에서 유입되는 정전기는 화살표(90)와 같이 회전샤프트(10)를 통해 홀센서(25)를 관통하게 되고, 회로기판(20)을 경유하여 접지단자(27)를 통해 차체로 흘러가게 되는 것이다.Therefore, the static electricity flowing from the outside penetrates the hall sensor 25 through the rotation shaft 10 as shown by the arrow 90, and flows to the vehicle body through the ground terminal 27 via the circuit board 20. will be.

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

차고센서 내부로 유입되는 외부 정전기가 홀센서를 직접 관통하여 회로기판을 통해 차체로 흘러가게 됨으로써, 홀센서가 정전기에 취약한 금속 반도체인 Ge, Si, Se 등의 소재로 이루어진 반도체 소자로 구성되는 경우에는 홀센서의 고장을 초래하거나, 또는 오작동을 발생시키게 되어 차고센서의 불량이 발생되는 문제점이 있었다.When the external static electricity flowing into the garage sensor flows directly through the Hall sensor and flows through the circuit board to the vehicle body, the Hall sensor is composed of semiconductor elements made of materials such as Ge, Si, Se, which are susceptible to static electricity. There was a problem that the malfunction of the garage sensor is caused to cause or malfunction of the Hall sensor.

본 고안은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 하우징 내측에 회전 가능하게 설치되는 회전샤프트에 메인부쉬를 구비하고 하우징에는 고정브래킷과 결합되는 써브부쉬를 구비하되, 메인부쉬와 써브부쉬가 통전될 수 있도록 연결부재를 구비함으로써, 외부에서 회전샤프트로 유입되는 정전기가 홀센서를 직접 관통하지 않고 메인부쉬와 써브부쉬를 통해 고정브래킷으로 전달되게 하여 정전기에 의한 홀센서의 고장을 방지하여 외부 정전기에 대한 차고센서의 내구성을 증대시키고 또한 오작동을 방지할 수 있게 하는 정전기 방지 차고센서를 제공하고자 하는 것이다.The present invention has been made in order to solve the above problems, provided with a main bush on the rotating shaft rotatably installed inside the housing and the sub bush is coupled to the fixed bracket, the main bush and the sub bush By providing a connecting member so that electricity can be supplied, static electricity flowing into the rotating shaft from the outside does not directly pass through the hall sensor but is transferred to the fixing bracket through the main bush and the sub bush to prevent the failure of the hall sensor due to static electricity. It is an object of the present invention to provide an antistatic garage sensor that can increase the durability of the garage sensor against static electricity and also prevent malfunction.

상기 목적을 달성하기 위하여 본 고안은 하우징과, 일단부에는 레버가 결합되고 타단부에는 마그네트가 결합되며 상기 하우징 내측에 회전 가능하게 설치되는 회전샤프트와, 상기 하우징 내측에 설치하되, 상기 회전샤프트에 끼워지는 메인부쉬와, 상기 하우징 일측에 삽입 결합되며 차체에 연결되는 고정브래킷이 나사 결합되는 써브부쉬와, 상기 메인부쉬와 써브부쉬가 통전 가능하도록 연결하는 연결부재 및 상기 회전샤프트의 회전을 감지하는 홀센서가 구비된 회로기판을 포함하여 구성된다.In order to achieve the above object, the present invention includes a housing, a lever coupled to one end and a magnet coupled to the other end, and a rotating shaft rotatably installed inside the housing, and installed inside the housing, The main bush is inserted, the sub-bush which is inserted and coupled to one side of the housing, the fixing bracket is connected to the vehicle body, the connection member for connecting the main bush and the sub-bus so as to conduct electricity and for detecting the rotation of the rotary shaft It comprises a circuit board with a Hall sensor.

또한 본 고안의 상기 메인부쉬와 써브부쉬는 일측 외주면에 반경 방향을 따라 일정 깊이의 결합홈이 형성되고, 상기 연결부재는 연결바와 상기 연결바의 양단 부에 각각 형성되어 상기 메인부쉬와 써브부쉬의 결합홈에 각각 삽입 결합되는 결합부로 구성된다.In addition, the main bush and the sub-bush of the present invention is formed in the outer peripheral surface of the coupling groove of a predetermined depth along the radial direction, the connecting member is formed at both ends of the connecting bar and the connecting bar, respectively of the main bush and the sub-bush It is composed of a coupling portion that is inserted into each coupling groove.

이때 상기 연결부재의 결합부는 상기 메인부쉬와 써브부쉬에 형성된 결합홈에 탄성적으로 삽입 결합될 수 있도록 일측에 개구부가 구비된 결합공이 관통 형성된다.At this time, the coupling portion of the connection member is formed through the coupling hole provided with an opening on one side so as to be elastically inserted into the coupling groove formed in the main bush and the sub bush.

이상에서 설명한 바와 같이, 본 고안은 외부에서 차고센서 내부로 유입되는 정전기가 홀센서를 관통하지 않고 회전샤프트와 메인부쉬 및 써브부쉬를 통해 차체와 연결되는 고정브래킷으로 전달되어 차체로 흘러가게 됨으로써, 차고센서의 정전기에 대한 내구성을 향상시킬 수 있는 효과가 있고, 또한 홀센서의 고장으로 인한 오작동을 방지하여 차고센서의 품질을 향상시킬 수 있는 효과가 있다.As described above, the subject innovation is that the static electricity flowing into the garage sensor from the outside does not penetrate the hall sensor and is transmitted to the fixed bracket connected to the vehicle body through the rotating shaft, the main bush and the sub bush, and flows to the vehicle body. There is an effect that can improve the durability of the static electricity of the garage sensor, and also has the effect of improving the quality of the garage sensor by preventing malfunction due to failure of the hall sensor.

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 차고센서에 구비된 메인부쉬(50)와 써브부쉬(60) 및 연결부재(70)의 부분 분해사시도를 나타낸 것이다.Figure 2 shows a cross-sectional view of the height sensor of the present invention and Figure 3 shows a partial exploded perspective view of the main bush 50 and the sub-bush 60 and the connection member 70 provided in the height sensor of the present invention.

도 2에 도시된 바와 같이, 차고센서는 하우징(1), 회전샤프트(10), 메인부쉬(50), 써브부쉬(60), 연결부재(70) 및 홀센서(25)가 구비된 회로기판(20)으로 구성된다.As shown in FIG. 2, the garage sensor includes a housing 1, a rotary shaft 10, a main bush 50, a sub bush 60, a connecting member 70, and a hall sensor 25. It consists of 20.

회전샤프트(10)는 하우징(1) 내에 회전 가능하게 설치되는 것으로서, 하우 징(1) 외측으로 노출된 일단부에는 레버(40)가 결합되고 타단부에는 마그네트(30)가 결합된다.The rotary shaft 10 is rotatably installed in the housing 1, and the lever 40 is coupled to one end exposed to the outside of the housing 1 and the magnet 30 is coupled to the other end.

회전샤프트(10)는 마그네트(30)가 결합된 단부가 홀센서(25)의 상측면으로부터 일정거리 이격된 상태에서 홀센서(25)에 대해 연직방향으로 설치된다.The rotary shaft 10 is installed in a vertical direction with respect to the hall sensor 25 in a state where the end portion to which the magnet 30 is coupled is spaced a predetermined distance from the upper surface of the hall sensor 25.

한편 레버(40)는 일측이 차축(도시하지 않음)에 링크로 연결되는 것으로서, 타측에는 하우징(1) 외측으로 노출된 회전샤프트(10)의 단부가 관통 결합된다.On the other hand, the lever 40 is one side is connected to the axle (not shown) as a link, the other end is coupled through the end of the rotary shaft 10 exposed to the outside of the housing (1).

따라서 레버(40)는 회전샤프트(10)와 일체로 회전되게 된다.Therefore, the lever 40 is rotated integrally with the rotary shaft 10.

한편, 마그네트(30)는 홀센서(25)와 인접된 회전샤프트(10)의 일단부에 끼워져 고정 결합되는 것으로서, 접착제 등을 이용하여 회전샤프트(10)에 결합시킬 수 있다.On the other hand, the magnet 30 is fitted to one end of the rotary shaft 10 adjacent to the Hall sensor 25 and fixed, it can be coupled to the rotary shaft 10 using an adhesive or the like.

홀센서(25)는 마그네트(30)로부터 발생되는 자력선의 세기 즉 자속밀도의 변화량을 검출하는 것으로서 마그네트(30)가 결합된 회전샤프트(10)의 단부와 일정거리 이격된 상태로 회로기판(20)상에 구비된다.The hall sensor 25 detects the intensity of the magnetic force lines generated from the magnet 30, that is, the amount of change in the magnetic flux density, and is spaced apart from the end of the rotary shaft 10 to which the magnet 30 is coupled by a predetermined distance. ) Is provided.

따라서 홀센서(25)는 마그네트(30)의 회전에 의한 자속밀도의 변화에 대응되게 내부 저항이 선형적으로 변화되어 이를 출력함으로써 차고 높이를 감지할 수 있게 하는 것이다.Accordingly, the hall sensor 25 may detect the height of the garage by linearly changing the internal resistance to correspond to the change of the magnetic flux density due to the rotation of the magnet 30.

한편 메인부쉬(50)는 회전샤프트(10)의 회전이 원할하도록 하우징(1) 내측에 설치되는 것으로서, 회전샤프트(10)가 관통되어 결합된다.On the other hand, the main bush 50 is installed inside the housing 1 so that the rotation of the rotary shaft 10 is desired, the rotary shaft 10 is coupled through.

써브부쉬(60)는 원기둥 형상으로서 하우징(1)에 삽입 설치되며, 이때 일측 단면이 하우징(1)의 외주면과 동일 평면상에 위치하여 외측으로 노출될 수 있게 설 치된다.The sub bush 60 is inserted into the housing 1 as a cylindrical shape, and is installed such that one side cross section is located on the same plane as the outer circumferential surface of the housing 1 and exposed to the outside.

또한 써브부쉬(60)는 하우징(1)에 복수로 구비될 수 있으며, 차체와 연결되는 고정브래킷(80)이 나사(85)로 결합되게 된다.In addition, the sub-bush 60 may be provided in plural in the housing 1, and the fixing bracket 80 connected to the vehicle body is coupled to the screw 85.

한편 메인부쉬(50)와 써브부쉬(60)는 서로 통전(通電) 가능하도록 연결부재(70)에 의해 연결된다.On the other hand, the main bush 50 and the sub-bush 60 are connected by the connecting member 70 so as to be energized with each other.

메인부쉬(50)와 써브부쉬(60) 및 연결부재(70)는 하우징(1)에 일체형으로 설치될 수 있도록 하우징(1)에 인써트(insert) 사출로 구비될 수 있다.The main bush 50, the sub bush 60, and the connecting member 70 may be provided by insert injection into the housing 1 so as to be integrally installed in the housing 1.

차고센서의 작동과정은 다음과 같다The operation process of the garage sensor is as follows.

차량의 주행 중 지면 상태나 차량에 가해진 부하 또는 속도 등에 의해 차량 바퀴에 연결된 차축이 상,하로 움직이게 되면 차축의 상,하 운동은 레버(40)의 회전 운동으로 전환되게 된다.When the axle connected to the vehicle wheel moves up and down by the ground state or the load or speed applied to the vehicle while the vehicle is running, the up and down movement of the axle is converted to the rotational movement of the lever 40.

이때 회전샤프트(10)는 레버(40)와 결합되어 있어 레버(40)와 일체로 회전되게 되고, 이때 회전샤프트(10)의 회전에 의해 마그네트(30)도 동시에 회전되게 되어 마그네트(30)에서 발생되는 자속밀도의 변화를 홀센서(25)가 감지함으로써 차량의 높이 변화를 감지하게 되는 것이다.At this time, the rotary shaft 10 is coupled to the lever 40 is rotated integrally with the lever 40, at this time the magnet 30 is also rotated at the same time by the rotation of the rotary shaft 10 in the magnet 30 The hall sensor 25 detects a change in the generated magnetic flux density to detect a change in height of the vehicle.

이하 메인부쉬(50)와 써브부쉬(60) 및 연결부재(70)의 일 실시예를 도 3을 참조하여 상세히 설명한다.Hereinafter, an embodiment of the main bush 50, the sub bush 60, and the connecting member 70 will be described in detail with reference to FIG. 3.

도 3에 도시된 바와 같이, 회전샤프트(10)는 메인부쉬(50)에 회전 가능하게 관통 결합되며, 일측 단부에는 연결부재(70)의 일단부가 결합된다.As shown in Figure 3, the rotary shaft 10 is rotatably coupled to the main bush 50, one end of the connecting member 70 is coupled to one end.

이때 메인부쉬(50)는 양단이 개방된 일정 길이의 실린더 형상이며, 내주면은 회전샤프트(10)가 관통 삽입될 수 있게 회전샤프트(10)의 외주면에 대응되게 형성된다.At this time, the main bush 50 is a cylindrical shape of a predetermined length with both ends open, the inner peripheral surface is formed to correspond to the outer peripheral surface of the rotary shaft 10 so that the rotary shaft 10 can be inserted through.

따라서 메인부쉬(50)는 회전샤프트(10)의 중앙부 외주면에 내주면이 밀착되게 설치되어 회전샤프트(10)를 지지하게 된다.Therefore, the main bush 50 is installed in close contact with the inner circumferential surface on the outer peripheral surface of the central portion of the rotary shaft 10 to support the rotary shaft 10.

한편 메인부쉬(50)의 일측 단부의 외주면에는 반경 방향을 따라 일정깊이의 결합홈(55)이 형성된다.On the other hand, the outer peripheral surface of one end of the main bushing 50 is formed with a coupling groove 55 of a predetermined depth along the radial direction.

써브부쉬(60)는 원기동 형상이며, 일측 단부의 외주면에는 메인부쉬(50)에 형성된 결합홈(55)과 동일한 형상의 결합홈(65)이 반경 방향을 따라 형성되고, 타측 내부에는 고정브래킷(80)(도2에 도시함)이 나사(85) 결합될 수 있게 일정 깊이의 나사공이 형성된다.The sub bush 60 has a cylindrical shape, a coupling groove 65 having the same shape as the coupling groove 55 formed in the main bush 50 is formed along the radial direction on an outer circumferential surface of one end thereof, and a fixed bracket inside the other side. A screw hole of a certain depth is formed so that 80 (shown in FIG. 2) can be screwed together.

한편 연결부재(70)는 메인부쉬(50)와 써브부쉬(60)가 서로 통전될 수 있도록 연결시키는 것으로서, 연결바(75)와 결합부(76)로 구성된다.On the other hand, the connection member 70 is to connect the main bush 50 and the sub-bush 60 so as to be energized with each other, it is composed of a connection bar 75 and the coupling portion 76.

연결바(75)는 일정 길이의 바(bar) 형상이며, 결합부(76)는 연결바(75)의 양단부에 각각 형성된다.The connection bar 75 has a bar shape having a predetermined length, and the coupling part 76 is formed at both ends of the connection bar 75, respectively.

결합부(76)는 메인부쉬(50)와 써브부쉬(60)의 결합홈(55,65)에 결합되는 부분으로서, 중앙부에는 결합공(77)이 관통 형성된다.Coupling portion 76 is a portion that is coupled to the coupling grooves 55 and 65 of the main bush 50 and the sub-bush 60, the coupling hole 77 is formed through the center portion.

이때 결합공(77)의 직경은 결합홈(55,65)의 직경과 동일하거나 또는 약간 작게 형성되는 것이 바람직하다.At this time, the diameter of the coupling hole 77 is preferably the same as or slightly smaller than the diameter of the coupling groove (55, 65).

또한 결합부(76)는 메인부쉬(50)와 써브부쉬(60)의 결합홈(55,65)에 탄성 결합될 수 있도록 결합공(77)의 일측부에 개구부(78)가 형성된다.In addition, the coupling portion 76 has an opening 78 formed at one side of the coupling hole 77 to be elastically coupled to the coupling grooves 55 and 65 of the main bush 50 and the sub bush 60.

따라서 메인부쉬(50)와 써브부쉬(60)는 결합부(76)의 개구부(78)를 통해 결합홈(55,65)을 결합공(77)에 압입시킴으로써, 결합부(76)에 결합된다.Therefore, the main bush 50 and the sub bush 60 are coupled to the coupling portion 76 by pressing the coupling grooves 55 and 65 into the coupling holes 77 through the openings 78 of the coupling portion 76. .

이때 결합부(76)는 탄성력이 있는 금속소재로 형성되기 때문에 개구부(78)가 확장되면서 결합홈(55,65)에 끼워지게 됨으로써, 메인부쉬(50)와 써브부쉬(60)에 각각 탄성 결합되는 것이다.At this time, since the coupling portion 76 is formed of a metal material having elasticity, the opening portion 78 is expanded and fitted into the coupling grooves 55 and 65, thereby elastically coupling to the main bush 50 and the sub bush 60, respectively. Will be.

메인부쉬(50)와 써브부쉬(60)의 연결은 도 3에 도시된 연결부재(70)로 한정되는 것은 아니며, 연결케이블이나 와이어 등을 메인부쉬(50)나 써브부쉬(65)에 결합하여 통전되도록 할 수도 있다.The connection between the main bush 50 and the sub bush 60 is not limited to the connection member 70 shown in FIG. 3, by connecting a connection cable or a wire to the main bush 50 or the sub bush 65. It can also be energized.

본 고안의 정전기의 전달 경로는 다음과 같다.The electrostatic transfer path of the present invention is as follows.

도 2에 도시된 바와 같이, 외부에서 회전샤프트(10)로 유입된 정전기는 화살표(95)와 같이 메인부쉬(50)를 통해 연결부재(70)로 전달된 후, 써브부쉬(60)로 전달되게 된다.As shown in FIG. 2, the static electricity introduced into the rotary shaft 10 from the outside is transferred to the connecting member 70 through the main bush 50 as shown by the arrow 95, and then transferred to the sub bush 60. Will be.

한편 써브부쉬(60)로 전달된 정전기는 나사(85)를 통해 차체와 연결되는 고정브래킷(80)으로 전달됨으로써, 회로기판(20)의 홀센서(25)에 영향을 주지 않고 차체로 흘러가게 되는 것이다.Meanwhile, the static electricity transmitted to the sub-bush 60 is transferred to the fixing bracket 80 connected to the vehicle body through the screw 85, so that the static electricity flows to the vehicle body without affecting the hall sensor 25 of the circuit board 20. Will be.

따라서 본 고안은 정전기가 홀센서(25)를 직접 관통하지 않고 메인부쉬(50)와 연결부재(70) 및 써브부쉬(60)를 통해 홀센서(25)를 우회하여 차체(80)로 흘러가게 됨으로써, 정전기에 의한 홀센서(25)의 불량이나 오작동을 방지하게 되어 차고센서의 정전기 내성 및 성능을 향상시킬 수 있게 되는 것이다.Therefore, the present invention bypasses the hall sensor 25 through the main bush 50, the connecting member 70, and the sub bush 60 without flowing directly through the hall sensor 25 to flow to the vehicle body 80. By doing so, it is possible to prevent defective or malfunction of the Hall sensor 25 due to static electricity, thereby improving the static resistance and performance of the garage sensor.

이상, 상기의 실시 예는 단지 설명의 편의를 위해 예시로서 설명한 것에 불 과하므로 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.

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

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

도 3은 본 고안의 정전기 방지 차고센서에 구비된 메인부쉬와 써브부쉬 및 연결부재의 부분 분해사시도이다.3 is a partially exploded perspective view of the main bush and the sub-bush and the connection member provided in the antistatic garage sensor of the present invention.

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

1 : 하우징 10 : 회전샤프트1 housing 10 rotation shaft

20 : 회로기판 25 : 홀센서20: circuit board 25: Hall sensor

27 : 접지단자 30 : 마그네트27: ground terminal 30: magnet

40 : 레버 50 : 메인부쉬40: lever 50: main bush

55,65 : 결합홈 60 : 써브부쉬55,65: Coupling groove 60: Sub bush

70 : 연결부재 75 : 연결바70: connecting member 75: connecting bar

76 : 결합부 77 : 결합공76: coupling portion 77: coupling hole

78 : 개구부 80 : 고정브래킷78: opening 80: fixing bracket

85 : 나사 90,95 : 화살표85: screw 90,95: arrow

Claims (3)

하우징;housing; 일단부에는 레버가 결합되고 타단부에는 마그네트가 결합되며 상기 하우징 내측에 회전 가능하게 설치되는 회전샤프트;A shaft coupled to one end and a magnet coupled to the other end, the rotation shaft being rotatably installed inside the housing; 상기 하우징 내측에 설치하되, 상기 회전샤프트에 끼워지는 메인부쉬;A main bush installed inside the housing and fitted to the rotating shaft; 상기 하우징 일측에 삽입 결합되며 차체에 연결되는 고정브래킷이 나사 결합되는 써브부쉬;A sub bush inserted into and coupled to one side of the housing, the fixing bracket being screwed to the vehicle body; 상기 메인부쉬와 써브부쉬가 통전 가능하도록 연결하는 연결부재; 및A connection member connecting the main bush and the sub bush to enable energization; And 상기 회전샤프트의 회전을 감지하는 홀센서가 구비된 회로기판;A circuit board having a hall sensor detecting rotation of the rotation shaft; 을 포함하여 구성된 정전기 방지 차고센서.Antistatic garage sensor configured to include. 제 1항에 있어서,The method of claim 1, 상기 메인부쉬와 써브부쉬는 일측 외주면에 반경 방향을 따라 일정 깊이의 결합홈이 형성되고,The main bush and the sub bush is formed with a coupling groove of a predetermined depth along the radial direction on one outer peripheral surface, 상기 연결부재는 연결바와 상기 연결바의 양단부에 각각 형성되어 상기 메인부쉬와 써브부쉬의 결합홈에 각각 삽입 결합되는 결합부로 구성되는 것을 특징으로 하는 정전기 방지 차고센서.The connecting member is formed at both ends of the connecting bar and the connecting bar, the anti-static garage sensor, characterized in that composed of a coupling portion inserted into the coupling groove of the main bush and the sub bush, respectively. 제 2항에 있어서,The method of claim 2, 상기 연결부재의 결합부는 상기 메인부쉬와 써브부쉬에 형성된 결합홈에 탄성적으로 삽입 결합될 수 있도록 일측에 개구부가 구비된 결합공이 관통 형성되는 것을 특징으로 하는 정전기 방지 차고센서.The coupling part of the connection member is characterized in that the anti-static garage sensor characterized in that the through-hole is formed in the coupling hole is formed in one side so as to be elastically inserted into the coupling groove formed in the main bush and the sub bush.
KR2020070019285U 2007-11-30 2007-11-30 A hight sensor with static electricity interception device KR200444284Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210060029A (en) * 2019-11-18 2021-05-26 (주)토탈소프트뱅크 Device for measuring volume of freight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210060029A (en) * 2019-11-18 2021-05-26 (주)토탈소프트뱅크 Device for measuring volume of freight
KR102296865B1 (en) * 2019-11-18 2021-09-02 (주)토탈소프트뱅크 Device for measuring volume of freight

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