KR910001869Y1 - Checking apparatus of velocity - Google Patents

Checking apparatus of velocity Download PDF

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Publication number
KR910001869Y1
KR910001869Y1 KR2019880022022U KR880022022U KR910001869Y1 KR 910001869 Y1 KR910001869 Y1 KR 910001869Y1 KR 2019880022022 U KR2019880022022 U KR 2019880022022U KR 880022022 U KR880022022 U KR 880022022U KR 910001869 Y1 KR910001869 Y1 KR 910001869Y1
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KR
South Korea
Prior art keywords
motor
permanent magnet
motor shaft
excitation coil
speed
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KR2019880022022U
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Korean (ko)
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KR900012402U (en
Inventor
하학현
장기현
김석구
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린나이코리아 주식회사
강성모
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Priority to KR2019880022022U priority Critical patent/KR910001869Y1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • G01P3/46Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

내용 없음.No content.

Description

가스기구용 배기팬의 속도검출장치Speed detector of exhaust fan for gas appliance

제1도는 본 고안의 분해사시도.1 is an exploded perspective view of the present invention.

제2도는 본 고안의 조립상태 정면도.2 is a front view of the assembled state of the present invention.

제3도는 제2도의 A-A'선 단면도.3 is a cross-sectional view along the line AA ′ of FIG. 2.

제4도는 제3도의 B-B'선 단면도.4 is a cross-sectional view taken along the line B-B 'of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

M : 모터 1 : 모터축M: Motor 1: Motor Shaft

2 : 영구자석 3 : 협지편2: permanent magnet 3: narrowing

4 : 분할핀 5 : 여자코일4: Split pin 5: Female coil

6 : 보빈 6' : 요홈6: bobbin 6 ': groove

7 : 커버 8 : 전선7: cover 8: wire

본 고안은 주로 가스기구내에 설치하여 배기가스를 외부로 송풍시키기 위해 팬을 모터로 구동하는 배기팬의속도검출장치에 관한 것으로, 특히 모터축이 회전되는 돌력으로 기전력을 발생시켜 기존 정상전력과 비교하는 이상속도 검출장치에 관한 것이다.The present invention mainly relates to a speed detection device of an exhaust fan that is installed in a gas apparatus and drives a fan by a motor to blow exhaust gas to the outside. In particular, the electromotive force is generated by the rotation of the motor shaft, and compared with the existing normal power. It relates to an abnormal speed detection device.

종래 상기와 같은 목적으로 모터의 회전을 검지하는 장치로서 팬의 회전숫자를 발광센서와 수광센서가 단속하는 것을 일일이 카운트하여 정상속도를 감지하는 방법과, 팬의 일측에 돌출된 막대가 회전되며 마이크로스위치를 접점하도록 구성된 방법이 있었으나, 전자는 숫자를 카운팅하고 제어하는데 비교적 복잡한 회로 구성이 필요로 하고 기구의 설치부피가 크고, 후자의 방법은 기기의 수명이 짧아 자주 교체하여야 하는 불편과 큰 소음이 발생하는 등의 문제점이 있었다.Conventionally, as a device for detecting the rotation of the motor for the purpose as described above, the method of detecting the normal speed by counting the number of rotation of the fan and the light-receiving sensor intermittently, and the rod protruding on one side of the fan is rotated micro There was a method configured to contact the switch, but the former requires a relatively complicated circuit configuration to count and control the number, the installation volume of the instrument is large, and the latter method has a short life of the device, and the inconvenience and frequent noise that need to be replaced frequently There was a problem such as occurring.

따라서 배기를 위한 송풍팬이 정확한 회전숫자 까지는 검출할 필요가 없는 배기팬의 특성에 맞춰 소형의 장비로서 손쉽게 제어할수 있는 장치가 요구되어 왔다.Therefore, there has been a demand for a device that can be easily controlled as a compact equipment in accordance with the characteristics of the exhaust fan, which does not need to detect the blower fan for accurate exhaustion figures.

본 고안은 이러한 요구에 따라 구조적으로 간단하면서도 정확한 속도를 검출할 수 있도록 한 가스기구용 배기팬의 속도검출장치를 제공하려는 것이다.The present invention aims to provide a speed detecting device for an exhaust fan for a gas appliance that can detect a structurally simple and accurate speed according to such a requirement.

이하 본 고안은 첨부도면에 도시한 실시예에 따라서 상세히 설명한다.Hereinafter, the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

모터(M)의 정면으로 모터축(1)에 회동날개(도시없음)를 고정설치하여 모터(M)의 구동에 따라 함께 회전되며 송풍시킬 수 있도록 한 통상의 것을 구성함에 있어서, 상기 회동날개의 타측면으로 일부 돌출된 모터축(M)에 영구자석(2)을 일체로 회전가능하게 조립하며, 분할핀(3)이 일체로 형성된 협지편(4)을 여자코일(5)이 권회된 보빈(6)의 요홈(6')과 분할핀(3)이 양측에서 조립하여 원형의 영구자석(2)의 외주면에 여자코일(5)이 위치되도록 커버(7)로 모터(M)에 고정설치시켜 모터축(1)과 함께 영구자석(2)이 회전될때 전선(8)으로 기전력을 발생시킬 수 있도록 한 것이다.In the construction of a conventional one that is fixed to the rotating blade (not shown) in the motor shaft 1 in front of the motor (M) to rotate and blow together in accordance with the driving of the motor (M), the rotating blade The permanent magnet 2 is rotatably assembled to the motor shaft M which partially protrudes to the other side, and the clamping piece 4 in which the split pin 3 is integrally formed is bobbin with the coil coil 5 wound ( 6) grooves 6 'and the split pins 3 are assembled on both sides and fixed to the motor M with the cover 7 so that the excitation coil 5 is located on the outer circumferential surface of the circular permanent magnet 2 When the permanent magnet (2) along with the shaft (1) is to rotate to generate an electromotive force to the wire (8).

도면중 미설명 부호 9는 스냅링,10은 외셔를 나타내는 것이다.In the drawings, reference numeral 9 denotes a snap ring, and 10 denotes an outer washer.

일반적으로 가스기기에 있어서는, 배기용 모터(M)의 정면부에는 도시하지 않은 회전날개를 모터축(1)에 연결설치하여 필요에 따라 모터가 회전할 때는 회전날개가 비교적 빠르게 회천하면서 연소실에서 발생된 배기가스를 외부로 송출하여 계속하여 원활한 연소가 이루어지도록 하는데, 모터(M)에 이상이 생기거나 기타 다른 원인으로 회전이 정지되는 경우 또는 정상속도 보다 느린 속도로 회전되어 배기가스를 정상적으로 배출시키지못하게 되면, 정상적인 연소가 이루어지지 않아 열효율이 저하됨과 아울러 연료의 소모가 많아지게 되는 등의 문제점이 있게 된다.In general, in a gas machine, a rotary blade (not shown) is connected to the motor shaft 1 at the front part of the exhaust motor M, and when the motor rotates as needed, the rotary blade rotates relatively quickly and is generated in the combustion chamber. The exhaust gas is discharged to the outside for smooth combustion. If the rotation is stopped due to an abnormality in the motor (M) or other causes, the exhaust gas is rotated at a slower speed than the normal speed to exhaust the exhaust gas. If not, there is a problem such that the normal combustion is not made and the thermal efficiency is lowered and fuel consumption is increased.

본 고안에서는 회전날개를 구동하는 모터축(1)의 타측부를 모터(M)의 본체 보다 외부로 노출시켜 영구자석(2)을 조립할 수 있는 정도의 길이로 하여 도시한 바와 같이 모터축(1)을 대략 반달형 단면으로 하여 평면부를 형성함으로써 모터축(1)과 영구자석(2)이 함께 회전할수 있도록 하고, 여자코일(5)이 권회된 보빈(6)의 대경을 영구자석(2)의 회전에 아무런 지장을 주기 않게 한다.In the present invention, the other side of the motor shaft (1) for driving the rotary blade to the outside of the main body of the motor (M) to the length that can be assembled to the permanent magnet (2) as shown in the motor shaft (1) ) By forming a flat portion with a substantially half-moon-shaped cross section so that the motor shaft 1 and the permanent magnet 2 can rotate together, and the large diameter of the bobbin 6 in which the excitation coil 5 is wound, Do not interfere with the rotation.

그리고 보빈(6)의 양측으로 부터 조립되는 금속재의 협지편(3)에는 다수개의 분할핀(4)을 동일수로 직각으로 절곡형성하여 양측의 분할핀(4)의 숫자와 동일하게 보빈(6)의 내주면에 파여진 요홈(6')에 삽입함으로써 결합하며, 요홈(6')에 분할핀(4)을 일치시킴으로써 보빈(6)의 내경에 돌출되지 않게 한다.In addition, a plurality of split pins 4 are bent at right angles to the sandwiching piece 3 of metal material assembled from both sides of the bobbin 6 so that the number of split pins 4 on both sides is the same as that of the bobbin 6. It is coupled by inserting into the groove 6 ', which is dug into the inner circumferential surface, and by matching the split pin 4 with the groove 6', it does not protrude to the inner diameter of the bobbin 6.

상기 보빈(6)은 여자코일(5)이 권회된 상태로 첨부도면 제3도에서 보는 바와 같이 영구자석(2)의 외측면에 위치되게 한 후 커버(7)로서 모터(M)에 고정설치하고 전선(8)은 길게 커버(7)의 외측으로 여자코일(5)과 연결된 상태로 전압을 비교하기 위한 비교기(도시없음)에 까지 이어지게 되는 것이다.The bobbin 6 is fixed to the motor M as a cover 7 after being positioned on the outer side of the permanent magnet 2 as shown in FIG. And the wire 8 is to extend to the comparator (not shown) for comparing the voltage in a state connected to the excitation coil 5 to the outside of the cover 7 long.

상기와 같은 상태에서 모터(M)가 외부의 전원으로 회전되면 모터축(1)이 영구자석(2)과 회전날개(도시없음)를 동시에 회전시켜 회전날개는 단지 배기가스를 외부로 배출시키게 되고, 영구자석(2)은 회전에 의하여 분할핀(4)으로 나누어진 극수에 따라 여자코일(5)에서 일정 전압이 발생되는데 그 전압은 영구자석(2)의 회전, 즉 모터축(1)의 회전수에 따라서 변하게 되므로 설정된 알맞는 회전수에서 발생되는 전압과를 비교기회로에서 현재 회전에 의하여 입력된 전압이 일측 입력단에 인가되고 타측은 미리 설정된 기준전압의 차이에 따라 정해진 정상속도일때는 아무런 회로 동작이 이루어지지 않으나 설정된 회전수 보다 낮은 회전수로 회전하게 되는 등 여자코일(5)에서 발생되는 전압이 설정된 기준전압과 기준전압의 차이에 따라 정상속도가 아닌 경우와 같이 이상신호가 입력되는 경우에는 이를 감지하여 모터(M)의 회전을 정지시키거나 경보를 발하게 되는 것이다.When the motor M is rotated by an external power source in the above state, the motor shaft 1 simultaneously rotates the permanent magnet 2 and the rotating blades (not shown) so that the rotating blades only discharge exhaust gas to the outside. , The permanent magnet (2) is generated a constant voltage in the excitation coil (5) according to the number of poles divided by the split pin (4) by the rotation of the permanent magnet (2), that is, the rotation of the motor shaft (1) Since it changes according to the number, the voltage inputted by the current rotation in the comparator circuit is applied to one input terminal and the other side operates at the normal speed determined according to the difference of the preset reference voltage. If the voltage generated from the excitation coil 5 is not a normal speed depending on the difference between the reference voltage and the reference voltage, the rotation speed is lower than the set rotation speed. When an abnormal signal is input as shown in the figure, the motor will stop the rotation of the motor M or give an alarm.

상술한 바와 같이 본 고안에 의하면 회전날개와 항상 같은 회전수로 회전구동되는 영구자석(2)과 여자코일(5)을 분할핀(4)으로 극수 변화시켜 영구자석(2)이 회전됨에 따라 배기모터(M)의 회전수를 검출할 수 있으므로 구조가 간단하고 수명이 길게 되면서도 배기모터(M)의 이상속도에 의하여 발생되는 각종 비정상적인 현상을 간단하고 신속하게 미연에 방지할 수 있게 되는 것이다.As described above, according to the present invention, the permanent magnet 2 and the excitation coil 5, which are rotated at the same rotational speed as the rotating blade, are changed to the number of split pins 4, and the exhausted motor is rotated as the permanent magnet 2 is rotated. Since the rotation speed of (M) can be detected, it is possible to easily and quickly prevent various abnormal phenomena caused by the abnormal speed of the exhaust motor (M) while the structure is simple and the life is long.

Claims (1)

모터(M)의 정면으로 모터축(1)에 회동날개(도시없음)를 고정설치하여 모터(M)의 구동에 따라 함께 회전되며 송풍시킬수 있도록 한 통상의 것을 구동함에 있어서, 상기 회동날개의 타측편으로 일부 돌출된 모터축(1)에 영구자석(2)을 일체로 회전가능하게 조립하며, 분할핀(3)이 일체로 형성된 협지편(4)을 여자코일(5)이 권회된 보빈(6)의 요홈(6')과분할핀(3)이 양측에서 조립하여 원형의 영구자석(2)의 외주면에 여자코일(5)이 위치되도록 커버(7)로 모터(M)에 고정설치시켜서 된 것을 특징으로 하는 가스기구용 배기팬의 속도검출장치.In order to drive a common thing that is fixed to the rotating blade (not shown) on the motor shaft 1 in front of the motor (M) to rotate and blow together in accordance with the driving of the motor (M), the other The bobbin 6 in which the permanent magnet 2 is rotatably assembled to the motor shaft 1 which partially protrudes to the side, and the clamping piece 4 in which the split pin 3 is integrally wound is wound around the excitation coil 5. Grooves 6 'and split pins 3 are assembled on both sides and fixed to the motor M with the cover 7 so that the excitation coil 5 is located on the outer circumferential surface of the circular permanent magnet 2. A speed detection device for an exhaust fan for a gas appliance.
KR2019880022022U 1988-12-30 1988-12-30 Checking apparatus of velocity KR910001869Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019880022022U KR910001869Y1 (en) 1988-12-30 1988-12-30 Checking apparatus of velocity

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Application Number Priority Date Filing Date Title
KR2019880022022U KR910001869Y1 (en) 1988-12-30 1988-12-30 Checking apparatus of velocity

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KR900012402U KR900012402U (en) 1990-07-03
KR910001869Y1 true KR910001869Y1 (en) 1991-03-28

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