KR0127623Y1 - Sensing apparatus for abnormal swing of a washing machine - Google Patents
Sensing apparatus for abnormal swing of a washing machine Download PDFInfo
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- KR0127623Y1 KR0127623Y1 KR2019930028146U KR930028146U KR0127623Y1 KR 0127623 Y1 KR0127623 Y1 KR 0127623Y1 KR 2019930028146 U KR2019930028146 U KR 2019930028146U KR 930028146 U KR930028146 U KR 930028146U KR 0127623 Y1 KR0127623 Y1 KR 0127623Y1
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- washing machine
- vibration
- dehydration
- abnormal
- voltage
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- 238000005406 washing Methods 0.000 title claims abstract description 59
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 37
- 230000018044 dehydration Effects 0.000 claims abstract description 54
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000003321 amplification Effects 0.000 claims abstract description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
Classifications
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- 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
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
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- 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
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Imbalance; Noise level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
본 고안은 세탁기의 탈수행정시에 세탁기 본체의 수평설치상태 및 세탁물의 불균형(unbalance)에 의하여 발생하는 탈수조의 이상진동을 정확하게 감지하는 세탁기의 이상진동감지장치에 관한 것으로써, 전자동세탁기에 있어서, 세탁기의 탈수행정시에 발생하는 이상진동을 감지하도록 진동시에 변화하는 전압을 감지하는 진동감지수단(20)과, 상기 진동감지수단(20)에 의해 감지된 전압을 A/D변환하기 위해 증폭하는 증폭수단(30)과, 상기 증폭수단(30)에 의해 증폭된 전압신호의 아날로그 데이타를 디지탈 데이타로 변환하는 A/D변환수단(40)과, 상기 A/D변환수단(40)에 의해 디지탈 데이타로 변환된 전압신호를 받아서 전체적인 동작을 제어함과 동시에 탈수조의 이상진동여부를 판별하는 제어수단(50)과, 상기 제어수단(50)의 제어에 의해 세탁모터(2)를 구동제어하는 모터구동수단(60) 및 세탁기의 이상상태를 표시하는 표시수단(70)로 이루어진 것을 특징으로 한다.The present invention relates to an abnormal vibration detection device for a washing machine that accurately detects abnormal vibrations of a dehydration tank caused by horizontal installation of the washing machine main body and unbalance of laundry during dehydration operation of the washing machine. Vibration sensing means 20 for detecting a voltage that changes during vibration to detect abnormal vibration generated during the dehydration operation of the washing machine, and amplifies the voltage sensed by the vibration sensing means 20 for A / D conversion A / D conversion means 40 for converting the analog data of the voltage signal amplified by the amplification means 30 into digital data and the A / D conversion means 40 The control unit 50 receives the voltage signal converted into the data and controls the overall operation and simultaneously determines whether the dehydration tank is abnormally vibrated, and the washing motor 2 is driven by the control unit 50. Which is characterized in that comprising a display means 70 for displaying an abnormal state of the motor drive means 60 and the washing machine.
Description
제1도는 본 고안에 적용되는 세탁기의 개략적인 구조도.1 is a schematic structural diagram of a washing machine applied to the present invention.
제2도는 본 고안의 일실시예에 의한 세탁기의 이상진동감지장치의 제어블럭도.2 is a control block diagram of an abnormal vibration detection device of a washing machine according to an embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
20 : 진동감지수단 25 : 버퍼수단20: vibration detection means 25: buffer means
30 : 증폭수단 40 : A/D변환수단30: amplification means 40: A / D conversion means
50 : 제어수단 60 : 모터구동수단50: control means 60: motor driving means
70 : 표시수단70: display means
본 고안은 세탁기의 탈수행정시에 세탁기본체의 수평설치상태 및 세탁물의 불균형(unbalance)에 의하여 발생하는 탈수조의 이상진동을 정확하게 감지하는 세탁기의 이상진동감지장치에 관한 것이다.The present invention relates to an abnormal vibration detection device of a washing machine for accurately detecting abnormal vibration of the dehydration tank caused by the horizontal installation state of the washing machine body and the unbalance of the laundry during the dehydration operation of the washing machine.
일반적으로, 종래에 의한 세탁기에 있어서는 탈수과정시에 탈수조내의 세탁물이 한쪽으로 치우치는 편심량(불균형)에 의해 발생하는 이상진동을 체커 스위치(checker switch)에 의해 감지하였다.In general, in the conventional washing machine, abnormal checks caused by an eccentricity (unbalance) in which laundry in the dehydration tank is biased to one side during the dehydration process are detected by a checker switch.
즉, 상기 탈수조내의 세탁물이 편심되는 위치에 있을 경우 탈수조 및 세탁조에 진동이 발생한다.That is, when the laundry in the dehydration tank is in an eccentric position, vibration occurs in the dehydration tank and the washing tank.
이때, 진동의 진폭이 과다하여 이상진동이 발생할 경우에는 세탁조가 진동하면서 체커 바아(checker bar)를 침으로써 상기 체커 스위치의 접점이 오프되어 탈수조의 탈수행정을 중단시키는 방식을 사용하고 있었다.In this case, when abnormal vibration occurs due to excessive amplitude of the vibration, the contact of the checker switch is turned off by hitting a checker bar while the washing tank vibrates to stop the dehydration operation of the dehydration tank.
그런데, 이와같은 방식에 있어서는 정상적인 탈수가 진행되는 세탁물의 편심량과 이상진동이 발생하여 체커 스위치를 오프시키는 세탁물의 편심량 사이에 불감대역이 발생하여 이상진동시에도 체커 스위치가 오프되지 않아 탈수조의 탈수동작이 정지되지 않기 때문에 세탁기에 심한 진동이 발생하여 사용자에게 불쾌감을 제공함과 동시에 세탁기의 안전성 및 내구성이 약화된다는 문제점이 있었다.However, in such a method, a dead band occurs between the eccentric amount of the laundry in which normal dehydration proceeds and the eccentric amount of the laundry to turn off the checker switch, so that the checker switch is not turned off during abnormal vibration, so that the dehydration operation of the dehydration tank is performed. Since it does not stop, there is a problem that severe vibrations occur in the washing machine, thereby providing discomfort to the user, and at the same time, the safety and durability of the washing machine are weakened.
또한, 상기 체커스위치의 자체 동작거리로 인해 터브와의 일정거리를 유지하는 세탁기본체의 상부일측인 측벽 즉, 제한된 위치에 취부시켜야 하므로 조립공정이 어려울 뿐만 아니라, 이에 따른 불량률로 인해 탈수시의 이상진동을 정확하게 감지하지 못한다는 문제점이 있었다.In addition, since the checker switch has to be mounted on the side wall of the upper side of the main body of the washing machine that maintains a constant distance from the tub due to its own operating distance, the assembly process is difficult, and the defect rate thereof causes abnormality in dehydration. There was a problem that the vibration is not accurately detected.
따라서, 본 고안은 상기와 같은 문제점을 해결하기 위해 이루어진 것으로써, 본 고안의 목적은 제어수단과 충격센서를 이용하여 세탁기의 탈수과정시에 발생하는 인덕턴스의 값에 따른 주파수의 변화로 정상진동과 이상진동을 정확하게 감지할 수 있을 뿐만 아니라, 이로 인한 세탁기의 안전성 및 내구성을 보호할 수 있는 세탁기의 이상진동감지장치를 제공하는데 있다.Therefore, the present invention is made to solve the above problems, the object of the present invention is to change the frequency according to the value of the inductance generated during the dehydration process of the washing machine using the control means and the impact sensor and the normal vibration and The present invention provides an abnormal vibration detection device for a washing machine that can not only detect abnormal vibrations but also protect the safety and durability of the washing machine.
본 고안은 다른 목적은 상기 충격센서(이하, 진동감지수단이라 한다)가 탈수행정시에 변화하는 인덕턴스의 값에 따른 주파수의 변화로 세탁기의 이상진동을 감지함으로써 종래의 제한된 위치에 국한되지 않고 세탁기전체에 취부시킬 수 있기 때문에 조립성이 우수할 뿐만 아니라, 이로 인한 불량률을 감소할 수 있는 세탁기의 이상진동감지장치를 제공하는데 있다.Another object of the present invention is that the impact sensor (hereinafter referred to as vibration sensing means) is not limited to the conventional limited position by detecting abnormal vibration of the washing machine by changing the frequency according to the value of the inductance that changes during dehydration administration. Since it can be attached to the whole, as well as excellent assemblability, thereby providing an abnormal vibration detection device of the washing machine that can reduce the defective rate.
상기 목적을 달성하기 위하여 본 고안에 의한 세탁기의 이상진동감지장치는 전자동세탁기에 있어서, 세탁기의 탈수행정시에 발생하는 이상진동을 감지하도록 진동시에 변화하는 전압을 감지하는 진동감지수단과, 상기 진동감지수단에 의해 감지된 전압을 A/D변환하기 위해 증폭하는 증폭수단과, 상기 증폭수단에 의해 증폭된 전압신호의 아날로그 데이타를 디지탈 데이타로 변환하는 A/D변환수단과, 상기 A/D변환수단에 의해 디지탈 데이타로 변환된 전압신호를 받아서 전체적인 동작을 제어함과 동시에 탈수조의 이상진동여부를 판별하는 제어수단과, 상기 제어수단의 제어에 의해 세탁모터를 구동제어하는 모터구동수단 및 세탁기의 이상상태를 표시하는 표시수단으로 이루어진 것을 특징으로 한다.Abnormal vibration detection device of the washing machine according to the present invention to achieve the above object is a full automatic washing machine, vibration sensing means for detecting a voltage that changes during vibration to detect abnormal vibration occurring during the dehydration operation of the washing machine, and the vibration Amplification means for amplifying the voltage sensed by the sensing means for A / D conversion, A / D conversion means for converting analog data of the voltage signal amplified by the amplification means into digital data, and the A / D conversion. Control means for receiving the voltage signal converted into digital data by the means to control the overall operation and at the same time determining whether the dehydration tank is abnormally vibrated, motor control means for driving the washing motor under the control of the control means and the washing machine. Characterized in that the display means for displaying the abnormal state.
이하, 본 발명의 일실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
제1도에 있어서, 참조부호 1은 세탁기의 본체이고, 상기 본체(1)내에는 세탁모터(2)의 좌·우회전에 의해 투입된 세탁물을 세탁 및 탈수할 수 있도록 원통형상의 세탁 겸용 탈수조(3; 이하, 탈수조라 한다)가 설치되어 있고, 상기 탈수조(3)의 외측 둘레에는 탈수조(3)와 일정간격을 두고 상기 탈수조(3)를 지지하는 원통형상의 터브(4; 이하, 세탁조라 한다)가 설치되어 있다.In FIG. 1, reference numeral 1 denotes a main body of a washing machine, and in the main body 1, a cylindrical washing / dehydrating tank 3 capable of washing and dehydrating laundry introduced by left and right rotation of the washing motor 2. (Hereinafter, referred to as a dehydration tank), and a cylindrical tub (4; hereinafter, washing) that supports the dehydration tank 3 at a predetermined distance from the dehydration tank 3 at an outer circumference of the dehydration tank 3. Is installed).
그리고, 상기 세탁조(4)의 외측하부중앙에는 탈수조(3)내의 바닥에 설치된 펄세이터(5)가 상기 세탁모터(2)의 구동에 의해 좌·우방향으로 회전되면서 탈수조(3)내의 세탁물을 교반시켜주도록 감속기(6)가 설치되어 있다.In addition, the pulsator 5 installed at the bottom of the dehydration tank 3 is rotated in the left and right directions by the driving of the washing motor 2 in the outer lower center of the washing tank 4. A reducer 6 is provided to stir the laundry.
또한, 상기 본체(1)의 좌측상부에는 상기 탈수조(3)내에 투입된 세탁물의 양에 적합한 양의 물이 급수되도록 급수밸브(7)가 장착되어 있고, 상기 세탁조(4)의 우측면에는 상기 급수밸브(7)를 통해 탈수조(3)내에 투입되는 급수량을 감지하는 수위센서(8)가 장착되어 있다.In addition, a water supply valve 7 is mounted on the upper left side of the main body 1 so as to supply an amount of water suitable for the amount of laundry put into the dehydration tank 3, and on the right side of the washing tank 4, the water supply is provided. The water level sensor 8 which detects the amount of water supplied into the dehydration tank 3 through the valve 7 is mounted.
한편, 상기 본체(1)의 우측상부 즉, 톱커버(9; Top cover)의 후면부에는 상기 탈수조(3)의 이상진동을 감지하는 진동감지수단(20)이 장착되어 있고, 미설명부호 10은 배수밸브이며, 10'는 배수구이다.On the other hand, the upper right portion of the main body 1, that is, the rear portion of the top cover (9; Top cover) is equipped with a vibration detecting means 20 for detecting abnormal vibration of the dehydration tank (3), reference numeral 10 Is the drain valve and 10 'is the drain.
제2도에 있어서, 진동감지수단(20)은 상기 탈수조(3)의 탈수행정시에 발생하는 이상진동을 감지하도록 탈수조(3)의 진동에 변화하는 전압을 감지하는 것으로써, 이 진동감지수단(20)은 코일 및 자석(magnet)으로 구성되어 전압이 유기된 상기 코일이 상기 탈수조(3)의 탈수행정시에 진동하는 자석(magnet)에 의한 자기 인덕턴스의 변화에 따라 변화하는 주파수 및 전압으로 세탁기의 이상진동을 감지하는 충격센서(shock sensor)이다.In FIG. 2, the vibration detecting means 20 detects a voltage which changes in the vibration of the dehydration tank 3 so as to detect an abnormal vibration occurring in the dehydration stroke of the dehydration tank 3, thereby causing the vibration. Sensing means 20 is composed of a coil and a magnet (magnet), the frequency of which the voltage is induced to change the frequency according to the change of the magnetic inductance by the magnet (magnet) that vibrates during the dehydration of the dehydration tank (3) And it is a shock sensor (shock sensor) for detecting abnormal vibration of the washing machine by the voltage.
상기 진동감지수단(20)은 상기 톱커버(9)의 후면부 이외의 아웃케이스(Out case)나 탈수행정시의 진동을 감지할 수 있는 세탁기의 어느 부위에도 장착가능하다.The vibration detecting means 20 may be mounted on any part of the washing machine capable of detecting vibrations in an out case or dehydration operation other than the rear part of the top cover 9.
그리고, 버퍼수단(25)은 상기 진동감지수단(20)에 의해 감지된 탈수행정 진동시에 변화하는 전압신호에 포함되어 있는 노이즈 성분을 제거하고, 증폭수단(30)은 상기 버퍼수단(25)에 의해 필터링된 미세한 전압을 A/D변환하기 위해 증폭하며, A/D변환수단(40)은 상기 증폭수단(30)에 의해 증폭된 전압신호의 아날로그 데이타를 후술하는 제어수단에 미리 설정되어 있는 기준전압데이타와 비교하기 위해 디지탈 데이타로 변환시킨다.In addition, the buffer means 25 removes noise components included in the voltage signal that is changed during the dehydration vibration detected by the vibration sensing means 20, and the amplification means 30 is provided to the buffer means 25. Amplify the fine voltage filtered by the A / D conversion, and the A / D conversion means 40 is a reference set in advance in the control means to describe the analog data of the voltage signal amplified by the amplification means 30. Convert it to digital data for comparison with voltage data.
또한, 제어수단(50)은 상기 A/D변환수단(40)에 의해 디지탈 데이타를 변환된 전압신호를 받아서 전체적인 동작을 제어하는 제어신호를 출력함과 동시에 탈수조(3)의 이상진동여부를 판별하는 마이크로컴퓨터로써, 이 제어수단(50)은 상기 A/D변환수단(40)으로부터 디지탈 데이타의 전압신호를 받아서 미리 설정되어 있는 기준전압데이타와 비교한다.In addition, the control means 50 receives the voltage signal converted into the digital data by the A / D conversion means 40 outputs a control signal for controlling the overall operation and at the same time whether the abnormal vibration of the dehydration tank (3) As a discriminating microcomputer, this control means 50 receives the voltage signal of the digital data from the A / D conversion means 40 and compares it with the preset reference voltage data.
또한 도면에 있어서, 모터구동수단(60)은 상기 제어수단(50)의 제어에 의해 세탁모터(2)를 구동제어하는 것으로써, 이 모터구동수단(60)은 탈수조(3)의 이상진동시에는 상기 제어수단(50)으로부터의 제어신호를 받아서 세탁모터(2)의 구동을 정지한다.In addition, in the figure, the motor driving means 60 drives the washing motor 2 under the control of the control means 50, so that the motor driving means 60 at the time of abnormal vibration of the dehydration tank 3 is shown. Receives the control signal from the control means 50 and stops the driving of the washing motor 2.
그리고, 표시수단(70)은 상기 제어수단(50)의 제어에 의해 세탁기의 이상상태를 표시하는 것으로써, 이 표시수단(70)은 상기 탈수조(3)의 이상진동시에 상기 제어수단(50)의 제어에 따라 발광다이오드(LED)를 점등하거나 알람을 발생하여 이상상태를 표시한다.The display means 70 displays an abnormal state of the washing machine under the control of the control means 50. The display means 70 controls the control means 50 at the time of abnormal vibration of the dehydration tank 3. According to the control of LED, the LED is turned on or an alarm is displayed to indicate an abnormal state.
이하, 상기와 같이 구성된 세탁기의 이상진동감지장치의 작용효과를 설명한다.Hereinafter, the effect of the abnormal vibration detection device of the washing machine configured as described above will be described.
먼저, 탈수조(3)내에 세탁물을 투입하고 전원을 온하면, 상기 투입된 세탁물에 적합한 양의 물이 급수밸브(7)를 통해 탈수조(3)내에 급수되고, 상기 급수밸브(7)를 통해 급수된 수위량을 수위센서(8)에서 감지한다.First, when the laundry is put into the dehydration tank 3 and the power is turned on, the amount of water suitable for the injected laundry is supplied to the dehydration tank 3 through the water supply valve 7, and through the water supply valve 7. The water level is detected by the water level sensor (8).
이때, 도시되지 않은 세제자동투입기에서는 상기 급수된 수위량에 적합한 양의 세제를 탈수조(3)에 투입한다.At this time, in the automatic detergent dispenser (not shown), the detergent in the amount suitable for the water supply level is introduced into the dehydration tank (3).
그리고, 모터구동수단(60)에서는 제어수단(50)의 제어에 의해 세탁모터(2)를 구동시킨다.The motor driving means 60 drives the washing motor 2 under the control of the control means 50.
이에 따라, 상기 세탁모터(2)의 일측단부에 설치된 감속기(6)에서는 상기 세탁모터(2)의 동력을 전달받아 펄세이터(5)를 좌·우방향으로 회전시켜 탈수조(3)내에 투입된 세탁물 및 세탁수를 교반시킴으로써 세탁 및 탈수를 수행한다.Accordingly, the speed reducer 6 installed at one end of the washing motor 2 receives the power of the washing motor 2 to rotate the pulsator 5 in the left and right directions and is introduced into the dehydration tank 3. Washing and dehydration are carried out by stirring the laundry and wash water.
이때, 상기 탈수조(3)내에 세탁물이 편심되어 있는 상태로 탈수행정이 진행되면, 이로 인한 이상진동이 발생하게 되는데, 진동감지수단(20)에서는 상기 탈수조(3)의 탈수행정시에 진동으로 인해 변화하는 자기 인덕턴스값에 따라 변화하는 전압을 감지하여 버퍼수단(25)에서 출력한다.At this time, if the dehydration stroke proceeds in a state in which the laundry is eccentric in the dehydration tank 3, abnormal vibrations are generated. The vibration sensing means 20 vibrates during the dehydration stroke of the dehydration tank 3. Due to the change in the magnetic inductance value detected by the voltage is output from the buffer means (25).
이에 따라, 상기 버퍼수단(25)에서는 진동감지수단(20)에 의해 감지된 탈수행정 진동시에 변화하는 전압신호에 포함되어 있는 노이즈 성분을 필터링하고, 증폭수단(30)에서는 상기 버퍼수단(25)에 의해 필터링된 미세한 전압을 증폭시켜 A/D변환수단(40)에 출력한다.Accordingly, the buffer means 25 filters the noise component included in the voltage signal that is changed at the time of the dehydration vibration detected by the vibration sensing means 20, and the buffer means 25 in the amplification means 30. By amplifying the minute voltage filtered by the A / D conversion means 40 is output.
이에 따라, 상기 제어수단(50)에서는 A/D변환수단(40)으로부터 출력되는 디지탈 데이타의 전압신호를 받아서 미리 설정되어 있는 기준전압데이타와 비교한다.Accordingly, the control means 50 receives the voltage signal of the digital data output from the A / D conversion means 40 and compares it with the preset reference voltage data.
상기 비교결과, 상기 A/D변환수단(40)으로부터의 전압신호가 기준전압데이타보다 작은 경우에는 탈수과정시의 정상진동으로 판별하고, 상기 A/D변환수단(40)으로부터의 전압신호가 기준 전압데이타보다 큰 경우에는 탈수조(3)에 이상진동이 발생한 것으로 판별한다.As a result of the comparison, when the voltage signal from the A / D conversion means 40 is smaller than the reference voltage data, it is determined as the normal vibration during the dehydration process, and the voltage signal from the A / D conversion means 40 is the reference. If it is larger than the voltage data, it is determined that abnormal vibration has occurred in the dehydration tank 3.
이에 따라, 모터구동수단(60)에서는 상기 제어수단(50)의 제어에 의해 정상진동시에는 세탁모터(2)를 계속 구동하고, 이상진동시에는 상기 세탁모터(2)의 구동을 정지하면서, 표시수단(70)을 통해 세탁기의 이상상태를 표시해준다.Accordingly, the motor driving means 60 continues to drive the washing motor 2 during the normal vibration under the control of the control means 50, and stops the driving of the washing motor 2 during the abnormal vibration. The 70 indicates the abnormal state of the washing machine.
상기의 설명에서와 같이 본 고안에 의한 세탁기의 이상진동감지장치에 의하면, 제어수단과 진동감지수단을 이용하여 세탁기의 탈수행정시에 발생하는 인덕턴스의 값에 따른 전압의 변화로 정상진동과 이상진동을 정확하게 감지할 수 있을 뿐만 아니라, 이로 인한 세탁기의 안전성 및 내구성을 보호할 수 있다는 뛰어난 효과가 있으며, 상기 진동감지수단이 탈수행정시에 변화하는 인덕턴스의 값에 따른 전압의 변화로 세탁기의 이상진동을 감지함으로써 종래의 제한된 위치에 국한되지 않고 세탁기전체에 취부시킬 수 있기 때문에 조립성이 우수하 뿐만 아니라, 이로 인한 불량률을 감소할 수 있다는 뛰어난 효과가 있다.According to the abnormal vibration detection apparatus of the washing machine according to the present invention as described above, the normal vibration and abnormal vibration by the change of the voltage according to the value of the inductance generated during the dehydration operation of the washing machine by using the control means and the vibration detection means Not only can accurately sense, but also has an excellent effect of protecting the safety and durability of the washing machine, and the vibration detection means abnormal vibration of the washing machine due to the change in voltage according to the value of the inductance that changes during dehydration administration It is possible to mount the whole washing machine without being limited to the conventional limited position, so that the assemblability is excellent and the defect rate thereof can be reduced.
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| KR2019930028146U KR0127623Y1 (en) | 1993-12-16 | 1993-12-16 | Sensing apparatus for abnormal swing of a washing machine |
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| KR2019930028146U KR0127623Y1 (en) | 1993-12-16 | 1993-12-16 | Sensing apparatus for abnormal swing of a washing machine |
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