KR19980034265U - Tone wheel of electronic pickup type speed sensor - Google Patents
Tone wheel of electronic pickup type speed sensor Download PDFInfo
- Publication number
- KR19980034265U KR19980034265U KR2019960047205U KR19960047205U KR19980034265U KR 19980034265 U KR19980034265 U KR 19980034265U KR 2019960047205 U KR2019960047205 U KR 2019960047205U KR 19960047205 U KR19960047205 U KR 19960047205U KR 19980034265 U KR19980034265 U KR 19980034265U
- Authority
- KR
- South Korea
- Prior art keywords
- tone wheel
- speed sensor
- present
- electronic pickup
- disk
- Prior art date
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- 239000000696 magnetic material Substances 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
본 고안은 톤휠을 고압축의 플라스틱 재질의 디스크로 만들고 상기 디스크의 원주 둘레에는 사다리꼴 형상의 영구자석을 장착하여 구성하므로써, 톤휠의 중량을 감소시키고, 크랭크 샤프트 룸에서 발생하여 톤휠에 부착되는 금속성의 먼지량을 줄일 수 있는, 전자픽업식 회전속도 센서의 톤휠에 관한 것이다.The present invention reduces the weight of the tone wheel, and the amount of metallic dust generated in the crankshaft room and attached to the tone wheel by making the tone wheel a disk made of high-compression plastic and mounting a trapezoidal permanent magnet around the circumference of the disk. The present invention relates to a tone wheel of an electronic pick-up rotational speed sensor that can reduce the number of points.
본 고안의 톤휠은 고압축의 플라스틱 디스크로 구성되며, 상기 디스크의 원주 둘레에는 복수개의 사다리꼴 형상의 절취부(2)가 형성되어 있으며, 상기 절취부(2)에는 그 크기와 형상에 맞추어 자성체(3)가 삽입 장착되어 있는 것을 특징으로 한다.The tone wheel of the present invention is composed of a plastic disk of high compression, and a plurality of trapezoidal cutouts 2 are formed around the circumference of the disc, and the cutouts 2 are formed of magnetic material according to their size and shape. ) Is inserted and mounted.
Description
본 고안은 전자픽업식 회전속도 센서의 톤휠(tone wheel)에 관한 것으로, 구체적으로는 자동차 차륜의 회전속도 또는 엔진 크랭크 샤프트의 회전속도를 검출하기 위한 전자(電磁)픽업(pick-up)식 센서에 사용되는 톤휠에 관한 것이다.The present invention relates to a tone wheel of the electronic pick-up rotation speed sensor, specifically, an electronic pick-up sensor for detecting the rotation speed of an automobile wheel or the rotation speed of an engine crankshaft. It relates to a tone wheel used for.
자동차의 속도는 차륜의 회전속도를 검출하므로써 측정될 수 있다. 차륜의 회전수를 측정하기 위한 장치의 일예로는 전자픽업식 회전속도 센서가 있다. 이러한 종래의 전자픽업식 회전속도 센서는, 도 1에 도시된 바와 같이, 회전축에 설치된 자성체의 톤휠(101)과, 상기 톤휠(101)에 의한 자속 변화에 따라 교류전압을 발생시키는 픽업장치(102)로 구성되어 있다.The speed of the vehicle can be measured by detecting the rotational speed of the wheel. An example of an apparatus for measuring the number of revolutions of a wheel is an electronic pickup type speed sensor. The conventional electronic pickup type rotational speed sensor, as shown in Figure 1, the pick-up device 102 for generating an alternating voltage according to the magnetic flux change by the tone wheel 101 and the tone wheel 101 of the magnetic material installed on the rotating shaft It consists of).
톤휠(101)은 자성체로 이루어진 회전체이며, 그 원주둘레는 기어형상으로 되어 있다. 픽업장치(102)는 코일(103), 영구자석(104) 및 상기 영구자석(104)에서의 자속을 톤휠(101)에 전달하도록 하는 요크(yoke : 105)로 구성되며, 톤휠(101) 가까이에 설치된다.The tone wheel 101 is a rotating body made of a magnetic body, and the circumference of the circumference is in the shape of a gear. Pick-up device 102 is composed of a coil 103, a permanent magnet 104 and a yoke (yoke 105) for transmitting the magnetic flux from the permanent magnet 104 to the tone wheel 101, and close to the tone wheel 101 Is installed on.
이러한 전자픽업식 센서의 작동원리를 살펴보면, 자성체로 된 톤휠(101)이 축의 회전과 연동하여 회전하면, 픽업장치(102)의 코일(103)을 통과하는 자속의 크기가 변화되고, 그에 따라 코일(103)의 양단에서는 교류전압이 발생한다. 코일(103)에 의하여 발생하는 교류전압은 톤휠(101)의 회전속도에 비례하여 발생하게 되는데, 이러한 주파수를 계측하므로써 톤휠(101)의 회전수 및 축의 회전수를 검출하게 되는 것이다.Looking at the operation principle of the electronic pickup type sensor, when the tone wheel 101 made of a magnetic material rotates in conjunction with the rotation of the shaft, the magnitude of the magnetic flux passing through the coil 103 of the pickup device 102 is changed, accordingly the coil At both ends of 103, an AC voltage is generated. The AC voltage generated by the coil 103 is generated in proportion to the rotation speed of the tone wheel 101. By measuring the frequency, the rotation speed of the tone wheel 101 and the rotation speed of the shaft are detected.
이러한 전자픽업식 회전속도 센서는 자동차 차륜의 회전속도 뿐만 아니라 엔진 크랭크 샤프트의 회전수 및 트랜스 미션 출력측 회전수 등을 검출하는데 사용된다.The electronic pick-up rotation speed sensor is used to detect the rotation speed of the vehicle wheel as well as the rotation speed of the engine crankshaft and the rotation speed of the transmission output.
그러나 이러한 종래의 전자픽업식 회전속도 센서에 사용되는 톤휠(101)은 금속성의 자성체로 된 디스크로 되어 있으므로 그 중량이 매우 크며, 가격이 비싸기 때문에 자동차의 원가 상승요인이 된다.However, since the tone wheel 101 used in the conventional electronic pickup type rotational speed sensor is made of a magnetic disk of metal, its weight is very large, and the price is high, which is a cost increase factor of the automobile.
또한, 톤휠(101) 전체가 자성체의 금속으로 되어 있기 때문에 엔진의 크랭크 샤프트 룸에서 발생하는 금속성 먼지들이 부착되어 자성을 약화시키게 되는 단점이 있다.In addition, since the entire tone wheel 101 is made of a magnetic material, metallic dust generated in the crankshaft room of the engine is attached, thereby weakening the magnetic properties.
본 고안은, 상기한 종래의 전자픽업식 회전속도 센서에 사용되는 톤휠의 단점을 극복하기 위한 것으로, 톤휠을 고압축의 플라스틱 재질의 디스크로 만들고 상기 디스크의 원주 둘레에는 사다리꼴 형상의 영구자석을 장착하여 구성하므로써, 톤휠의 중량을 감소시키고, 크랭크 샤프트 룸에서 발생하여 톤휠에 부착되는 금속성의 먼지량을 줄일 수 있는 톤휠을 제공하는 것을 목적으로 한다.The present invention is to overcome the disadvantages of the tone wheel used in the conventional electronic pickup type rotational speed sensor, the tone wheel is made of a high-density plastic disk made of a trapezoidal permanent magnet around the circumference of the disk It is an object of the present invention to provide a tone wheel capable of reducing the weight of the tone wheel and reducing the amount of metallic dust generated in the crankshaft room and attached to the tone wheel.
상기한 목적을 달성하기 위하여, 본 고안에서는 고압축의 플라스틱 디스크로 구성되며, 상기 디스크의 원주 둘레에는 복수개의 절취부가 형성되어 있으며, 상기 절취부에는 그 크기와 형상에 맞추어 자성체가 삽입 장착되어 있는 것을 특징으로 하는, 전자픽업식 회전속도 센서의 톤휠이 제공된다.In order to achieve the above object, the present invention is composed of a high-density plastic disk, a plurality of cutouts are formed around the circumference of the disk, the cutout is a magnetic body is inserted and mounted according to the size and shape Characterized in that, a tone wheel of an electronic pickup type speed sensor is provided.
특히, 본 고안의 일실시예로서, 상기 절취부 및 절취부에 장착되는 자성체는 사다리꼴 형상으로 되어 있는 것을 특징으로 하는, 전자픽업식 회전속도 센서의 톤휠이 제공된다.In particular, as an embodiment of the present invention, the cutout and the magnetic body mounted on the cutout is characterized in that the trapezoidal shape, there is provided a tone wheel of the electronic pickup type speed sensor.
도 1은 종래의 전자픽업식 회전속도 센서의 구성도이고,1 is a block diagram of a conventional electronic pickup type speed sensor,
도 2는 본 고안의 톤휠을 구비한 전자픽업식 회전속도 센서의 구성도이다.2 is a block diagram of an electronic pickup type speed sensor having a tone wheel of the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1, 101 : 톤휠2 : 절취부1, 101: tone wheel 2: cutout
3 : 자성체4, 102 : 픽업장치3: magnetic material 4, 102: pickup device
5 : 회전축103 : 코일5: rotating shaft 103: coil
104 : 영구자석105 : 요크104: permanent magnet 105: yoke
이하, 첨부도면을 참조하여 본 고안의 구성 및 본 고안에 따른 일 실시예의 구성을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention and the configuration of an embodiment according to the present invention.
도 2에는 본 고안의 톤휠을 구비한 전자픽업식 회전속도 센서의 구성이 도시되어 있다. 본 고안에 따른 톤휠(1)은 중량을 경감하기 위하여 플라스틱 디스크로 구성된다. 톤휠(1)로 사용되는 플라스틱은 어떤 종류의 것이어도 무방하나, 적절한 강도 및 일정정도의 열에도 견딜 수 있도록 고압축 플라스틱으로 구성되는 것이 바람직하다.2 shows a configuration of an electronic pickup type speed sensor having a tone wheel of the present invention. The tone wheel 1 according to the present invention is composed of a plastic disk to reduce the weight. The plastic used as the tone wheel 1 may be of any kind, but is preferably composed of a high-compression plastic so as to withstand appropriate strength and a certain amount of heat.
톤휠(1)의 원주 둘레에는 디스크의 일부가 절취된 절취부(2)가 형성된다. 픽업장치(3)에 자속변화를 주기 위하여 상기 톤휠(1)의 절취부(2)에는 그 형상과 크기에 대응되는 자성체(4)가 삽입 장착된다. 상기 절취부(2)와 자성체(4)의 형상은, 자성체(4)가 절취부에서 쉽게 빠지지 않도록 하기 위하여, 사다리꼴 형상으로 되어 있는 것이 바람직하다. 그러나 접착제 등을 이용하여 자성체(4)가 절취부(2)에 장착될 수 있으므로 절취부(2)와 자성체(4)의 형상이 반드시 사다리꼴 형상으로 한정되는 것은 아니다.A circumference of the tone wheel 1 is formed with a cutout 2 in which a portion of the disc is cut out. In order to change the magnetic flux to the pickup device 3, the cutout portion 2 of the tone wheel 1 is inserted with a magnetic material 4 corresponding to its shape and size. The shapes of the cutout portion 2 and the magnetic body 4 are preferably trapezoidal in order to prevent the magnetic body 4 from easily falling out of the cutout portion. However, since the magnetic body 4 may be mounted to the cutout portion 2 using an adhesive or the like, the shapes of the cutout portion 2 and the magnetic body 4 are not necessarily limited to trapezoidal shapes.
다음으로 작동과정을 살펴보면, 회전축(5)의 회전에 연동하여 톤휠(1)이 회전하면, 원주 둘레에 구비된 자성체(3)가 픽업장치(4)에 접근하거나 또는 픽업요소로 부터 멀어지게 되는데, 그에 따라 픽업장치(4)내의 코일(도시되지 않음)에 작용하는 자속밀도가 변화하게 된다. 그에 따라 픽업장치(4) 코일의 양단에서는 교류전압이 발생하고, 교류전압의 주파수를 계측하므로써 톤휠(1)의 회전수 및 축의 회전수를 검출한다.Looking at the operation process next, when the tone wheel (1) rotates in conjunction with the rotation of the rotary shaft (5), the magnetic body (3) provided around the circumference is approaching the pickup device (4) or away from the pickup element Therefore, the magnetic flux density acting on the coil (not shown) in the pickup device 4 changes. As a result, AC voltage is generated at both ends of the coil of the pickup device 4, and the rotation speed of the tone wheel 1 and the rotation speed of the shaft are detected by measuring the frequency of the AC voltage.
이상에서 살펴본 바와 같이, 본 고안의 톤휠은, 고압축의 플라스틱으로 이루어지므로 제조원가를 절감할 수 있을 뿐만 아니라, 종래의 톤휠과는 달리 그 중량이 매우 경감될 수 있으며, 그에 따라 차량 전체의 중량을 경량화할 수 있다.As described above, the tone wheel of the present invention is made of a high-compression plastic, not only can reduce the manufacturing cost, but, unlike the conventional tone wheel, its weight can be greatly reduced, thereby reducing the weight of the entire vehicle. can do.
또한 본 고안의 톤휠은 픽업장치와 반응하는 자성제 부분이 필요한 만큼만 구비되기 때문에 엔진의 크랭크 샤프트 룸에서 발생하는 금속성의 먼지가 부착되는 양을 줄일 수 있으며, 그에 따라 픽업장치에 측정오차가 발생할 가능성이 줄어든다.In addition, the tone wheel of the present invention can reduce the amount of metallic dust generated in the crankshaft room of the engine because only a portion of the magnetic material reacting with the pickup device is needed, and thus a measurement error may occur in the pickup device. This decreases.
본 고안은 실용신안등록청구의 범위에 기재되어 있는 바와 같이 전자픽업식 회전속도 센서의 톤휠 및 그 일실시예에 관해서만 설명하였으나, 이에 한정되지 아니하며 당업자라면 본 고안의 기술적 사상을 벗어나지 않는 범위내에서 다양한 응용과 변형이 가능할 것이다.The present invention has been described only with respect to the tone wheel of the electronic pickup-type rotational speed sensor and one embodiment thereof, as described in the scope of the utility model registration claim, but is not limited thereto and those skilled in the art do not depart from the technical spirit of the present invention. Various applications and variations are possible in.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960047205U KR19980034265U (en) | 1996-12-10 | 1996-12-10 | Tone wheel of electronic pickup type speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960047205U KR19980034265U (en) | 1996-12-10 | 1996-12-10 | Tone wheel of electronic pickup type speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980034265U true KR19980034265U (en) | 1998-09-15 |
Family
ID=53988435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960047205U KR19980034265U (en) | 1996-12-10 | 1996-12-10 | Tone wheel of electronic pickup type speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980034265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100980971B1 (en) * | 2008-04-30 | 2010-09-07 | 현대자동차주식회사 | Tone Wheel For Speed Sensor And Manufacturing Method Thereof |
| KR102676840B1 (en) * | 2024-01-15 | 2024-06-20 | (주)에이치케이씨 | Rotation Detection Device for Prevent Conveyor Jamming Accidents |
-
1996
- 1996-12-10 KR KR2019960047205U patent/KR19980034265U/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100980971B1 (en) * | 2008-04-30 | 2010-09-07 | 현대자동차주식회사 | Tone Wheel For Speed Sensor And Manufacturing Method Thereof |
| KR102676840B1 (en) * | 2024-01-15 | 2024-06-20 | (주)에이치케이씨 | Rotation Detection Device for Prevent Conveyor Jamming Accidents |
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