KR960004867Y1 - Speed sensor - Google Patents

Speed sensor Download PDF

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Publication number
KR960004867Y1
KR960004867Y1 KR2019930008135U KR930008135U KR960004867Y1 KR 960004867 Y1 KR960004867 Y1 KR 960004867Y1 KR 2019930008135 U KR2019930008135 U KR 2019930008135U KR 930008135 U KR930008135 U KR 930008135U KR 960004867 Y1 KR960004867 Y1 KR 960004867Y1
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South Korea
Prior art keywords
connecting shaft
speed sensor
main body
bearing
accommodating
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KR2019930008135U
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Korean (ko)
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KR940027310U (en
Inventor
박종규
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박종규
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Priority to KR2019930008135U priority Critical patent/KR960004867Y1/en
Publication of KR940027310U publication Critical patent/KR940027310U/en
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Publication of KR960004867Y1 publication Critical patent/KR960004867Y1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/80Devices characterised by the determination of the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42Devices characterised by the use of electric or magnetic means
    • G01P3/44Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

내용없음.None.

Description

속도 감지기Speed sensor

제1도는 본 고안의 속도감지기를 분해하여 보인 사시도.1 is an exploded perspective view showing the speed sensor of the present invention.

제2도는 본 고안의 속도감지기를 조립한 단면도.2 is a cross-sectional view of the speed sensor of the present invention assembled.

제3도는 본 고안의 속도감지기의 작동에 따른 자동차속도 검출회로이다.3 is a vehicle speed detection circuit according to the operation of the speed sensor of the present invention.

본 고안은 자동차등에 적용되는 속도감지기에 관한 것으로, 특히, 연결축의 회전이 원활하고 연결축상의 부품을 최소로 하는 속도감지기에 관한 것이다.The present invention relates to a speed sensor applied to automobiles, and more particularly, to a speed sensor for smoothly rotating the connecting shaft and minimizing components on the connecting shaft.

통상 속도감지기는 회전기기축이 자동차의 트랜스미션에서 연장된 케이블 또는 연결부재에 그의 회전축이 연결되어서, 자체회전 속도가 속도계기에 의하여 표시되도록 하고 있다.In general, the speed sensor has its rotary shaft connected to a cable or connecting member whose rotary machine shaft extends from the transmission of the vehicle, so that its own rotational speed is indicated by the speed meter.

이 속도감지기는 실용신안공고번호 제92-6523호에 기재와 같이 걸림턱과 고정턱들이 일체로 성형되는 본체를 구비하고 신호 발생부가 격벽에 키이를 형성한 연결축과 이 키이에 대응하는 키홈을 구비하고, 연결축에 삽입고정되는 자석과 걸림턱과 고정턱에 압입고정되어 연결축의 양단을 지지하는 축받이부재와 걸림턱과 고정턱 및 축받이부재와 연결축과 축받이부재 사이에 간격유지구 및 마찰감쇄부재를 구비한다.This speed sensor has a main body in which the locking step and the fixed step are integrally formed as described in Utility Model Publication No. 92-6523, and the signal generating unit has a connecting shaft in which a key is formed in the partition wall and a key groove corresponding to the key. And a retaining member and a retaining member supporting the both ends of the connecting shaft by being fixed to the magnet and the locking jaw and the fixing jaw inserted into the connecting shaft and holding the jaw and the fixing jaw and the bearing member and the connecting shaft and the bearing member. A damping member is provided.

그러나, 이 감지기는 홀소자를 구비하여 그의 축회전속도를 감지하도록 한 것으로, 연결축을 지지하는 축받이부재와 연결축과 축받이부재 사이에 윤활을 공급하는 간격유지구 및 마찰감쇄부재등의 다수부품이 소용되고, 특히 자석이 연결축에 삽입고정되나, 견고한 고정이 이루어지지 않는 경우 연결축상에서 공회전의 우려도 배제할 수 없었다.However, this sensor is provided with a Hall element to sense the rotational speed of the shaft, and a number of parts such as a bearing member for supporting the connecting shaft and a gap retaining member for supplying lubrication between the connecting shaft and the bearing member and a friction damping member are useful. In particular, the magnet is inserted and fixed to the connecting shaft, but when the solid fixing is not made, the fear of idling on the connecting shaft could not be excluded.

따라서, 본 고안의 목적은 캡과 몸체로 분리되고, 각기 연결축을 지지하는 축받이부가 일체로 성형되며, 연결축이 본체의 축받이부로 삽입되는 부위에 금속제의 링을 구비함으로써 연결축의 회전이 원활하고 연결축상의 부품을 최소로 한 속도감지기를 제공함에 있다.Therefore, the object of the present invention is separated into a cap and a body, each bearing part supporting the connecting shaft is integrally formed, and the connection shaft is smoothly connected by providing a ring made of metal in the portion that is inserted into the bearing portion of the main body To provide a speed sensor with a minimum of the on-axis parts.

이러한 본 고안의 목적은 일측 축받이부가 형성된 캡과, 상기 캡과는 분리되고 그 내부로 축받이부가 마찰감소부재와 함께 성형되는 본체와, 회전날개부, 축받이부에 삽입되어서 회전마찰을 감소시키는 금속재의 실린더, 반원형상의 회전익과 격벽들이 일체로 성형된 연결축과, 회전익을 중심에 두고 서로 대향되게 위치된 포토커플러와, 상기 포토커플러를 지지하고 회전익의 회전속도를 검출하는 검출부를 구비한 프린트기판들로 속도감지기를 구성함으로써 달성될 수 있다.The object of the present invention is a cap formed with one side bearing portion, the main body is separated from the cap and the bearing portion is molded together with the friction reducing member, the rotary blade portion, the metal portion is inserted into the bearing portion to reduce the rotational friction of Printed substrates comprising a cylinder, a connecting shaft formed by forming a semi-circular rotor blade and partition walls, a photocoupler positioned to face each other with the rotor blade centered thereon, and a detector for supporting the photocoupler and detecting a rotational speed of the rotor blade. Can be achieved by configuring a speed sensor.

이하 본 고안을 첨부 도면에 의하여 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제1도 및 제2도에 도시된 바와 같이 속도감지기(100)는 본체(1)와 캡(2)으로 구성된다.As shown in FIG. 1 and FIG. 2, the speed sensor 100 is composed of a main body 1 and a cap 2.

이때, 본체(1)는 속도검출부로 되는 프린트기판(4)을 수납하는 수납공동을 가지는 수납부(3)와 이후 상세히 기술되는 연결축을 수납하는 공동(5)으로 이루어진다.At this time, the main body 1 consists of an accommodating part 3 having an accommodating cavity for accommodating the printed circuit board 4 serving as a speed detecting part and a cavity 5 accommodating a connecting shaft described later in detail.

즉, 본체(1)에는 연결축(20)이 회전가능하게 설치되는데, 연결축(20)의 일측을 지지하도록 축직경과 거의 동일크기로 되는 구멍을 형성한 축받이부(6)가 일체로 사출성형된다.That is, the connecting shaft 20 is rotatably installed in the main body 1, and the bearing part 6 formed with a hole having a diameter substantially the same as the shaft diameter to support one side of the connecting shaft 20 is integrally ejected. Molded.

동시에 이 축받이부(6)의 후면에는 연결축(20)의 회전을 원활히 하도록 하는 고무재의 마찰소부재(8)는 본체(100)가 플라스틱재등의 폴리모등의 재질로 되므로 축받이부재의 후면에 일체로 사출성형된다는 점에 주목된다.At the same time, the friction element (8) made of rubber material to smoothly rotate the connecting shaft (20) on the back of the bearing part (6), so that the main body (100) is made of polymole such as plastic material. It is noted that it is injection molded integrally with

수납부(3)는 프린트기판(4)을 지지하도록 기판지지구(9)가 일체로 형성된다.The accommodating part 3 has a substrate support 9 integrally formed to support the printed board 4.

이 프린트기판(4)은 하측면으로는 회로소자(11)들이 배열되고 상면으로는 포토커플러의 발광소자(11)와 수광소자(12)들이 이후 기술되는 바와 같이 직립하여 소정간격을 두고 배열된다.The printed circuit board 4 has circuit elements 11 arranged on the lower side and light emitting elements 11 and light receiving elements 12 of the photocoupler on the upper side, arranged upright with a predetermined interval as described later. .

한편, 이들 배열은 반대일수도 있다.On the other hand, these arrangements may be reversed.

캡(2)은 본체(1)의 입구부에 형성된 안내요홈(13)을 따라 삽입되는 삽입부(14)와, 케이블에 고정되는 나선부(15)와 그들 사이에 원주둘레로 돌출하여 본체입구부에 지지되는 연장부(16)들로 구성된다.The cap 2 has an insertion portion 14 inserted along the guide recess 13 formed at the inlet of the main body 1, the spiral portion 15 fixed to the cable, and a circumferential circumference between them, and thus the main body inlet. It consists of extensions 16 supported on the part.

삽입부(14)는 안내요홈(13)을 따라 안내되는 돌출리브(17)가 형성되어 있다.Insertion portion 14 is formed with a protrusion rib 17 is guided along the guide groove (13).

이 삽입부(14)는 본체(1)내에 삽입완료시 볼트등의 접착제에 의하여 고정된다.The insertion portion 14 is fixed by an adhesive such as a bolt when the insertion is completed in the main body 1.

또한, 이 캡(2)의 삽입부(14)의 단부측에는 연결축(20)의 타측단을 위한 축받이부(18)가 캡(2)과 일체로 사출성형되어 있다.Moreover, the bearing part 18 for the other end of the connecting shaft 20 is injection-molded integrally with the cap 2 at the end side of the insertion part 14 of this cap 2.

본체(1)내에서 회전가능하도록 설치되는 연결축(20)은 일체로 성형된다.The connecting shaft 20 rotatably installed in the main body 1 is integrally molded.

즉, 이 연결축(20)은 축받이부(6) 및 (18)들에 대향하여 그가 회전지지되도록 돌출한 연장부(21), 포토커플러소자(11) 및 (12)들의 거의 중간에 위치되는 반원형의 회전익(22)과 축받이부(6)의 구멍내로 삽입되는 위치에 끼워지는 급속제의 소정폭을 가진 마찰감소링(23)으로 구성된다.In other words, the connecting shaft 20 is located almost in the middle of the extensions 21, the photocoupler elements 11 and 12, which protrude so as to be supported for rotation against the bearing portions 6 and 18. It consists of a semicircular rotary blade 22 and a friction reducing ring 23 having a predetermined width of a quickener fitted in a position to be inserted into the hole of the bearing portion 6.

따라서, 본 고안의 속도감지기(100)는 본체(1)가 마찰감소부재(8)가 일체로 고정된 상태에서, 연결축(20)의 링(23)이 축받이부(6)의 구멍내로 삽입되는데 축받이부(6) 벽과 연장부(21) 사이에는 와샤(24)가 위치된다.Therefore, the speed sensor 100 of the present invention has a ring 23 of the connecting shaft 20 is inserted into the hole of the bearing portion 6 in a state in which the main body 1 is fixed to the friction reducing member 8 integrally. The washer 24 is positioned between the bearing 6 wall and the extension 21.

한편, 회전익(22)은 공동(5) 내에서 프린트기판(4)이 수납부(3)내에 고정될 때 포토커플러소자(11) 및 (12) 사이에 위치된다.On the other hand, the rotor blade 22 is located between the photocoupler elements 11 and 12 when the printed circuit board 4 is fixed in the housing portion 3 in the cavity 5.

그 다음, 연장부(21)와 축받이부(18) 사이에 다른 와샤(25)가 위치되게 하는 상태로 캡(2)이 본체(1)에 삽입고정 되도록 된다.Then, the cap 2 is inserted into and fixed to the main body 1 with the other washer 25 positioned between the extension portion 21 and the bearing portion 18.

이와 같이 구성된 본 고안의 작용효과를 설명한다.It describes the effect of the present invention configured as described above.

상기와 같이 조립완료된 본 고안의 속도감지기(100)는 연결축(20)이 외부케이블등에 의하여 회전될 때 제3도에 도시된 바와 같이 회전속도 펄스를 발생시킨다.The speed sensor 100 of the present invention, which is assembled as described above, generates a rotation speed pulse as shown in FIG. 3 when the connecting shaft 20 is rotated by an external cable or the like.

즉, 발광소자(11)가 발광되는 중에 회전익(22)이 단속적으로 빛을 차단하게 되고, 수광소자(12)는 간헐적인 작동을 하게 된다.That is, the rotor blade 22 intermittently blocks the light while the light emitting element 11 emits light, and the light receiving element 12 operates intermittently.

이때, 수광소자(12)가 작동될 때마다 이 수광소자(12)의 콜렉터에 연결된 베이스를 가진 트랜지스터(31)는 수신신호에 대하여 동일주기로 온, 오프 반복하게 된다.At this time, each time the light receiving element 12 is operated, the transistor 31 having the base connected to the collector of the light receiving element 12 is repeatedly turned on and off with respect to the received signal.

이때, 저항(32)을 경유하여 수광소자(12) 및 트랜지스터(31)의 에미터에 연결된 베이스를 가진 트랜지스터(33)는 소정크기의 전압펄스를 발생시키게 된다.At this time, the transistor 33 having a base connected to the light receiving element 12 and the emitter of the transistor 31 via the resistor 32 generates a voltage pulse of a predetermined size.

이 전압펄스 신호는 도시되지 않은 속도검출기로 연결된다.This voltage pulse signal is connected to a speed detector not shown.

상기에서와 같이 본 고안은 속도감지기를 캡과 몸체로 분리하고, 각기 연결축을 지지하는 축받이부가 일체로 성형하며, 연결축이 본체의 축받이부로 삽입되는 부위에 금속제의 링을 구비함으로써 연결축이 몸체내에서 원활한 회전이 보장될 뿐만 아니라, 간단한 부품수에 의하여 조립이 가능하면서 신뢰성있는 회전속도감지를 실현할 수 있는 효과가 제공되는 것이다.As described above, the present invention separates the speed sensor into a cap and a body, and each bearing part supporting the connecting shaft is integrally formed, and the connecting shaft is provided with a metal ring at a portion where the connecting shaft is inserted into the bearing part of the main body. In addition to ensuring smooth rotation within the assembly, it is possible to assemble by a simple number of parts and provide an effect that can realize a reliable rotational speed detection.

Claims (3)

(정정) 속도감지기에 있어서, 축받이부(6)(18)가 일측에 일체로 성형된 캡(2)과, 상기 축받이부(6)가 고무재의 마찰감소부재(8)와 일체로 결합되게 하고 그 내부로 프린트기판(4)을 수납하고 연결축(20)을 수납하는 공동(5)으로 이루어진 본체(1)와, 축받이부(6)(18)에 대향하여 지지되는 연장부(21)들과 소정간격을 두고 연장부(21)들 사이의 중간에 위치한 회전익(22)과 본체(1)의 축받이부(6)에 삽입되는 부분에 일체로 형성되는 금속제의 링(23)으로 되는 연결축(20)으로 구성됨을 특징으로 한 속도감지기.(Correction) In the speed sensor, the bearing parts 6 and 18 are integrally molded on one side, and the bearing parts 6 are integrally combined with the friction reducing member 8 of rubber material. The main body 1 consisting of a cavity 5 for accommodating the printed board 4 and accommodating the connecting shaft 20 therein, and the extension parts 21 supported against the bearing parts 6 and 18. And a connecting shaft made of a metal ring 23 integrally formed at a portion inserted into the bearing portion 6 of the main body 1 and the rotor blade 22 positioned in the middle between the extension portions 21 at predetermined intervals. Speed sensor, characterized in that consisting of (20). (삭제)(delete) (삭제)(delete)
KR2019930008135U 1993-05-14 1993-05-14 Speed sensor KR960004867Y1 (en)

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KR2019930008135U KR960004867Y1 (en) 1993-05-14 1993-05-14 Speed sensor

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Application Number Priority Date Filing Date Title
KR2019930008135U KR960004867Y1 (en) 1993-05-14 1993-05-14 Speed sensor

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KR940027310U KR940027310U (en) 1994-12-09
KR960004867Y1 true KR960004867Y1 (en) 1996-06-12

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