KR0127196Y1 - Motor speed detecting apparatus of a washing machine - Google Patents
Motor speed detecting apparatus of a washing machine Download PDFInfo
- Publication number
- KR0127196Y1 KR0127196Y1 KR2019940015716U KR19940015716U KR0127196Y1 KR 0127196 Y1 KR0127196 Y1 KR 0127196Y1 KR 2019940015716 U KR2019940015716 U KR 2019940015716U KR 19940015716 U KR19940015716 U KR 19940015716U KR 0127196 Y1 KR0127196 Y1 KR 0127196Y1
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- South Korea
- Prior art keywords
- motor
- washing machine
- light
- rotational speed
- rotation
- Prior art date
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Classifications
-
- 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
- G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/22—Optical devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/17—Circuit arrangements for detecting position and for generating speed information
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
본 고안은 세탁기용 모터의 회전속도 감지장치에 대해 개시한다. 본 고안은 모터(13)의 축에 설치되며 적어도 하나의 구멍(14')이 형성된 회전원판(14)과, 회전원판의 하부에 설치되며 빛을 발생하는 발광부와 빛을 수광하는 수광부를 가지는 광소자(16)를 구비하여서, 회전원판의 회전에 따라서 그 회전원판에서 반사되는 빛이 광소자에 수광되도록 하여 그 펄스의 수를 카운팅함으로써 모터의 회전수를 감지하도록 한다. 이러한 본 고안은 회전속도 감지를 정확히하고 제품의 신뢰성을 향상시킨다.The present invention discloses a rotation speed detection device for a motor for a washing machine. The present invention has a rotating disk 14 installed on the shaft of the motor 13 and formed with at least one hole 14 ', a light emitting part for generating light and a light receiving part for receiving light, which is installed under the rotating disk. The optical element 16 is provided so that the light reflected from the rotating disc is received by the optical element in accordance with the rotation of the rotating disc so as to count the number of pulses so as to sense the rotational speed of the motor. This invention accurately detects the rotational speed and improves the reliability of the product.
Description
제1도는 종래 감지장치가 채용된 세탁기의 부분 단면도.1 is a partial cross-sectional view of a washing machine employing a conventional sensing device.
제2도는 제1도의 요부 사시도.2 is a perspective view of main parts of FIG.
제3도는 본 고안에 따른 감지장치를 채용한 세탁기의 부분 사시도.3 is a partial perspective view of a washing machine employing a sensing device according to the present invention.
제4도는 제3도의 요부 사시도.4 is a perspective view of main parts of FIG.
제5도는 제3도의 요부 발췌도 단면도이다.FIG. 5 is a cross-sectional view illustrating main parts of FIG. 3.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 세탁조 12 : 동력제어장치1: washing tank 12: power control device
13 : 모터 14 : 회전원판13 motor 14 rotation disc
15 : 케이싱 16 : 광소자15 casing 16: optical element
18 : 회로기판18: circuit board
본 고안은 세탁기용 모터의 회전속도 감지장치에 관한 것으로서, 특히 간단한 구조로 정확한 회전속도를 감지할 수 있도록 그 구조가 개선된 세탁기용 모터의 회전속도 감지장치에 관한 것이다.The present invention relates to a rotation speed detection device for a washing machine motor, and more particularly, to a rotation speed detection device for a washing machine motor whose structure is improved to detect a precise rotation speed with a simple structure.
일반적으로 전기 세탁기는 제1도에 도시된 바와 같이 세탁물이 수용되는 세탁조(1)와, 이 세탁조(1)를 회전구동시키는 모터(3)와, 모터(3)의 동력을 정,역회전제어하는 동력제어장치를 구비한다. 이러한 세탁기는 세탁조(1)를 동력제어장치(2)에 의해서 정,역으로 회전시켜서 세탁물을 교반하여 세탁한다. 또한 모터(3)의 회전력으로 세탁조(1)를 고속으로 회전시켜서 탈수시킨다.In general, an electric washing machine includes a washing tank 1 in which laundry is accommodated as shown in FIG. 1, a motor 3 for driving the washing tank 1, and a power of the motor 3 forward and reverse rotation control. And a power control device. The washing machine rotates the washing tub 1 forward and backward by the power control device 2 to wash the laundry by stirring the laundry. In addition, the washing tank 1 is rotated at high speed by the rotational force of the motor 3 to be dewatered.
한편, 이러한 모터(3)의 동력으로 세탁조(1)를 회전시켜서 세탁을 하는 세탁조(1)에 모터(3)의 회전속도를 감지하는 감지장치가 채용되어서, 세탁조(1)의 회전을 각 모드에 적당한 회전속도로 되도록 제어한다.On the other hand, a sensing device for detecting the rotational speed of the motor 3 is employed in the washing tank 1 for washing by rotating the washing tank 1 by the power of the motor 3, the rotation of the washing tank 1 in each mode Control at the proper rotation speed.
이러한 모터 회전속도 감지장치는 제1도 및 제2도에 도시된 바와 같이 모터(3)의 축(3')에 다수의 자극이 반복적으로 형성된 마그네트(6)를 설치하고, 그 마그네트(6)의 외주측에 상기 마그네트(6)의 자극을 검출하는 소자(5)를 회로기판(4)에 설치한 구조를 가진다. 이러한 감지장치는 모터(3)가 회전구동함에 따라 마그네트(6)가 회전되고 상기 소자(5)가 회전되는 마그네트(6)의 자극을 검출하여서 회전수에 비례하는 펄스신호를 출력시킴으로써 세탁조(1)의 회전속도를 제어하도록 하는 것이다.The motor rotational speed sensing device is provided with a magnet (6) having a plurality of magnetic poles repeatedly formed on the shaft (3 ') of the motor 3, as shown in Figure 1 and 2, the magnet 6 The circuit board 4 is provided with an element 5 for detecting the magnetic pole of the magnet 6 on the outer circumferential side thereof. Such a sensing device detects the magnetic pole of the magnet 6 in which the magnet 6 rotates as the motor 3 rotates and detects the magnetic pole of the magnet 6 in which the element 5 rotates, and outputs a pulse signal proportional to the rotational speed of the washing tub 1. To control the rotation speed.
그런데, 이러한 모터의 회전속도 감지장치는 고가의 마그네트(6)가 채용되어야 하고, 또한 자극을 검출하는 소자(5)를 마그네트(6)의 외주측에 설치함으로써 이를 채용하는 케이스(미도시)의 형상이 복잡해지고, 각 제품에 채용되는 마그네트(6)마다 자속밀도가 일정하지가 않기 때문에 제품마다 그 감지정도가 일정치 않게 되는 문제점이 있다.By the way, the rotation speed detection device of such a motor should be expensive magnet (6) is employed, and the case (not shown) employing this by installing the element (5) for detecting the magnetic pole on the outer peripheral side of the magnet (6) Since the shape becomes complicated and the magnetic flux density is not constant for each magnet 6 employed in each product, there is a problem in that the detection accuracy is not constant for each product.
본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 간단한 구조로 저가이면서 제품마다 모터의 회전속도를 감지하는 감지정도가 일정하도록 그 구조가 개선된 세탁기용 모터 회전속도 감지장치를 제공하는데 그 목적이 있는 것이다.The present invention has been made to solve the above problems, and provides a motor speed detection device for a washing machine improved in its structure so that the detection degree for detecting the rotational speed of the motor is constant with low cost and simple products with a simple structure. There is a purpose.
상기 목적을 달성하는 본 고안은 세탁기용 모터 회전속도 감지장치에 있어서, 상기 모터의 축에 설치되며 적어도 하나의 구멍이 형성된 회전원판과, 상기 회전원판의 상하부중 어느 일측에 설치되며 빛을 발생하는 발광부와 빛을 수광하는 수광부를 가지는 광소자와, 상기 회전원판 및 광소자를 감싸도록 설치되는 상기 모터에 케이싱을 구비하여서, 상기 회전원판의 회전에 따라서 상기 회전원판에서 반사되는 빛을 수광부에서 수광하여 그 펄스의 수를 카운팅 하여서 모터의 회전수를 감지하도록 하여 되는 것을 특징으로 한다.The present invention to achieve the above object in the washing machine motor rotational speed sensing device, installed on the shaft of the motor and formed with at least one hole and at least one side of the upper and lower portions of the rotating disk to generate light An optical element having a light emitting unit and a light receiving unit for receiving light, and a casing on the rotating disc and the motor installed to surround the optical element, and receive light reflected from the rotating disc according to the rotation of the rotating disc. And counting the number of pulses to detect the rotational speed of the motor.
이하 첨부된 도면을 참조하면서 본 고안에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 고안에 따른 모터의 회전속도 감지장치가 채용된 세탁기를 개략적인 단면도로 나타낸 제3도를 참조하면, 이는 케이싱(10)내에 세탁물이 수용되는 세탁조(11)가 회전가능하게 지지되어 있고, 이 세탁조(11)를 회전시키는 모터(13)와 이 모터(13)의 동력을 정,역으로 제어하는 동력제어장치(12)가 마련되어 있다. 세탁조(11)는 동력제어장치(12)의 축에 고정되어 있으며, 모터(13)와 동력제어장치(12)는 벨트(17)로 연결되어 동력 전달이 되도록 되어 있다.Referring to FIG. 3, which is a schematic cross-sectional view of a washing machine employing a rotational speed sensing device of a motor according to the present invention, this means that a washing tank 11 in which laundry is accommodated in a casing 10 is rotatably supported. A motor 13 for rotating the washing tank 11 and a power control device 12 for controlling the power of the motor 13 in reverse and reverse directions are provided. The washing tank 11 is fixed to the shaft of the power control device 12, the motor 13 and the power control device 12 is connected to the belt 17 to transmit power.
한편, 본 고안의 특징적 구성으로서 상기 모터(13)의 회전속도를 감지하는 감지장치는 다음과 같이 구성된다. 제5도를 참조하면, 모터(13)의 축(13')에는 구멍(14')이 형성된 회전원판(14)이 결합되고, 그 회전원판(14)의 하부에는 빛을 방출하는 발광부와 빛을 수광하는 수광부를 가지는 광소자(16)가 회로기판(18)에 설치된다. 그리고 상기 모터(13)의 하면에는 상기 회전원판(14), 회로기판(18)을 보호하도록 감싸는 케이싱(15)이 설치된다.On the other hand, as a characteristic configuration of the present invention, the sensing device for detecting the rotational speed of the motor 13 is configured as follows. Referring to FIG. 5, a rotating disc 14 having a hole 14 ′ is coupled to a shaft 13 ′ of the motor 13, and a light emitting part emitting light is provided below the rotating disc 14. An optical element 16 having a light receiving portion for receiving light is provided on the circuit board 18. And the lower surface of the motor 13 is provided with a casing 15 that wraps to protect the rotating disk 14, the circuit board 18.
이와 같이 구성된 본 고안에 따른 회전속도 감지장치는 모터(13)가 회전구동함으로써 회전원판(14)이 회전되고, 동시에 광소자(16)의 발광부에서는 빛이 발광되며, 그 빛은 회전되는 회전원판(14)의 하면에서 반사되어 수광부로 수광된다.In the rotation speed sensing device according to the present invention configured as described above, the rotation disk 14 is rotated by rotating the motor 13, and at the same time, light is emitted from the light emitting part of the optical device 16, and the light is rotated. It is reflected by the lower surface of the disc 14 and is received by the light receiving portion.
이와 같이 회전원판(14)의 회전수에 비례해서 광소자(16)에 빛이 수광되고, 이에 따라서 광소자(16)와 대응된 위치를 통과한 회전원판(14)의 구멍(14')의 수에 비례해서 빛을 수광하여 펄스신호를 발생시킨다. 이때 발생된 펄스신호는 마이콤(미도시)에서 카운트되어 모터(13)의 회전속도를 제어할 수 있게 된다.In this way, light is received by the optical element 16 in proportion to the number of rotations of the rotational disc 14, and accordingly, the hole 14 ′ of the rotational disc 14 passing through the position corresponding to the optical element 16. The light is received in proportion to the number to generate a pulse signal. At this time, the generated pulse signal is counted in the microcomputer (not shown) to control the rotation speed of the motor 13.
이상에서 설명한 바와 같이 본 고안에 따른 세탁기용 모터의 회전속도 감지장치는 다음과 같은 이점을 가진다.As described above, the rotation speed detecting device for a washing machine motor according to the present invention has the following advantages.
첫째, 종래 감지장치에 채용되는 마그네트를 사용하지 않음으로써 제품의 단가를 낮출수 있다.First, the unit cost of the product can be lowered by not using a magnet employed in a conventional sensing device.
둘째, 종래 마그네트의 자속밀도의 차이에 따라 각 제품마다 회전감지정도가 다르게되어 제품의 신뢰성이 저하되는 반면에, 본 고안은 구멍이 형성된 회전원판을 채용함으로써 각 제품마다 균일한 회전속도감지장치를 제공한다.Second, the rotation detection degree is different for each product according to the difference in magnetic flux density of the conventional magnet, while the reliability of the product is lowered. to provide.
세째, 기구적 구조가 간단하다.Third, the mechanical structure is simple.
상술한 바와 같이 본 고안은 저가이고 신뢰성이 높은 세탁기용 모터 회전속도감지장치를 제공한다.As described above, the present invention provides a motor rotational speed detecting device for a washing machine at low cost and high reliability.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940015716U KR0127196Y1 (en) | 1994-06-29 | 1994-06-29 | Motor speed detecting apparatus of a washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940015716U KR0127196Y1 (en) | 1994-06-29 | 1994-06-29 | Motor speed detecting apparatus of a washing machine |
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| Publication Number | Publication Date |
|---|---|
| KR960003304U KR960003304U (en) | 1996-01-22 |
| KR0127196Y1 true KR0127196Y1 (en) | 1998-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940015716U KR0127196Y1 (en) | 1994-06-29 | 1994-06-29 | Motor speed detecting apparatus of a washing machine |
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|---|---|
| KR (1) | KR0127196Y1 (en) |
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1994
- 1994-06-29 KR KR2019940015716U patent/KR0127196Y1/en not_active IP Right Cessation
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| KR960003304U (en) | 1996-01-22 |
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