JPH05269288A - Washing machine - Google Patents

Washing machine

Info

Publication number
JPH05269288A
JPH05269288A JP4064758A JP6475892A JPH05269288A JP H05269288 A JPH05269288 A JP H05269288A JP 4064758 A JP4064758 A JP 4064758A JP 6475892 A JP6475892 A JP 6475892A JP H05269288 A JPH05269288 A JP H05269288A
Authority
JP
Japan
Prior art keywords
timer
washing machine
unit
washing
power source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4064758A
Other languages
Japanese (ja)
Other versions
JP2693079B2 (en
Inventor
Hisanori Hirose
久典 広瀬
Yuji Nagafuku
裕二 永福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP4064758A priority Critical patent/JP2693079B2/en
Publication of JPH05269288A publication Critical patent/JPH05269288A/en
Application granted granted Critical
Publication of JP2693079B2 publication Critical patent/JP2693079B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE:To automatically change over timer operation even if the zero voltage of a power source can not be obtained, by detecting that the interruption flag which is set by a synchronous signal outputted in synchronization with the zero voltage of the power source voltage can not be obtained and carrying out the switching to the timer operation by setting the stop flag. CONSTITUTION:After a timer 35 starts operation, a monitor part 37 monitors if a synchronous signal is outputted from a zero cross detection part 27. Since the interruption flag is not set when a synchronous signal is not outputted to a control part 33, it is judged that the interruption flag is reset, and after the stop flag is set, the timer operation where a washing machine motor 6 is operated according to the operation of the timer 35 is executed. Accordingly, even if the zero cross detection part 27 does not detect the zero voltage from a power source, the control part 33 carries out timer operation which is nearly the same as the washing operation in the synchronous operation, on the basis of the counting of the timer 35, and washing is carried out.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、洗濯機モータの回転
速度を制御する洗濯機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for controlling the rotation speed of a washing machine motor.

【0002】[0002]

【従来の技術】この種の洗濯機は、特公昭63−352
71号に示されている。このものは、洗濯機モータの通
電路にスイッチング素子を設け、前記洗濯機モータに加
える交流電源の周波数を複数に分割した単位サイクル毎
に前記スイッチング素子を通断電制御して、洗濯機モー
タの回転を制御するものである。
2. Description of the Related Art A washing machine of this type is disclosed in Japanese Examined Patent Publication No. 63-352.
No. 71. This is a washing machine motor provided with a switching element in the energization path, the AC power applied to the washing machine motor is divided into a plurality of frequencies, and the switching element is turned on and off for each unit cycle to control the washing machine motor. It controls the rotation.

【0003】[0003]

【発明が解決しようとする課題】一般に洗濯機のモータ
は、ノイズを低減させるために電源電圧の零電圧に同期
させて、駆動停止制御を行っている。
Generally, the motor of a washing machine is controlled in synchronization with the zero voltage of the power supply voltage in order to reduce noise.

【0004】また、屋久島等の離島において商用電源の
波形は正弦波でなく歪んでいることが知られており、こ
のような商用電源を使用して、上述の制御を行うとき、
同期信号が得られない恐れがあり、洗濯機モータの回転
制御ができないという問題がある。
Further, it is known that the waveform of the commercial power source is not a sine wave but is distorted in remote islands such as Yakushima. When such a commercial power source is used to perform the above-mentioned control,
There is a problem that the synchronization signal may not be obtained, and the rotation control of the washing machine motor cannot be performed.

【0005】そこで、同期信号が得られるように、制御
回路をチューニングしなければならないが、サービスマ
ンが出張してできる作業でないため、チューニングした
制御回路と取り換える作業を行う。しかし、交通が不便
な離島において、この回路が送付されてくるまでに時間
がかかるので、この間洗濯機が使用できなければ大変不
便である。
Therefore, the control circuit must be tuned so that the synchronization signal can be obtained. However, since this is not a work that a service person can do on a business trip, a work for replacing the tuned control circuit is performed. However, on a remote island where transportation is inconvenient, it takes time until this circuit is sent, so it is very inconvenient if the washing machine cannot be used during this period.

【0006】本発明は、斯る課題を解決するものであ
る。
The present invention solves such a problem.

【0007】[0007]

【課題を解決するための手段】上述の課題を解決するた
めの本発明の手段は、洗濯機モータの通電路を開閉する
スイッチング素子と、該スイッチング素子を開閉する駆
動部とを設け、前記洗濯機モータに加える商用電源の半
周期もしくは数周期を導通の1単位として前記スイッチ
ング素子の導通制御を行う導通部と、前記商用電源の零
電圧を検出して同期信号を出力するゼロクロス検出部
と、洗濯時間等を計時するタイマーと、前記同期信号を
監視し、一定時間検出されなければ監視信号を出力する
監視部と、該監視部から前記監視信号が出力されると前
記導通部の制御とは関係なく、前記タイマーにより前記
駆動部を制御する構成である。
Means for Solving the Problems According to the means for solving the above problems, according to the present invention, there is provided a switching element for opening and closing a current path of a washing machine motor, and a drive section for opening and closing the switching element. A conduction unit that controls conduction of the switching element with a half cycle or several cycles of the commercial power source applied to the machine motor as one unit of conduction, and a zero-cross detection unit that detects a zero voltage of the commercial power source and outputs a synchronization signal, What is a timer that measures the washing time and the like, a monitoring unit that monitors the synchronization signal and outputs a monitoring signal if it is not detected for a fixed time, and a control of the conduction unit when the monitoring signal is output from the monitoring unit. Regardless of the configuration, the timer controls the drive unit.

【0008】[0008]

【作用】即ち、通常は商用電源の零電圧に同期して制御
する導通部により、駆動部を介してスイッチング素子を
制御して洗濯機モータの回転制御を行うが、同期信号が
得られないと監視部が判断し、監視信号を出力したと
き、導通部の制御とは関係なくタイマーからの信号によ
り、駆動部を介してスイッチング素子を制御する。
In other words, the conduction section that is normally controlled in synchronization with the zero voltage of the commercial power source controls the switching element through the drive section to control the rotation of the washing machine motor, but if the synchronization signal cannot be obtained. When the monitoring unit judges and outputs the monitoring signal, the switching element is controlled via the driving unit by the signal from the timer regardless of the control of the conducting unit.

【0009】[0009]

【実施例】図1及び図2において、1は洗濯機のフレー
ム、2は外槽、3は外槽2内に配置した脱水兼洗濯槽
(以下洗濯槽という)、4は洗濯槽3の上部に設けられ
たバランスリング、5は洗濯槽3の底部に設けられたパ
ルセータ、6は軸受7を介してパルセータ4を回転させ
る洗濯機モータ、8は外槽2の底部に設けた排水口、9
は排水路10に設けた排水バルブ、11は排水バルブ9
の開閉を行う排水ソレノイド、12は排水路10の端部
に取り付けられた蛇腹状排水ホース、13は給水路14
に設けられ、洗濯槽3内に洗濯水を給水する給水バル
ブ、15は該給水バルブ13を開閉する給水ソレノイ
ド、16は溢水路17を介して排水路10に連通する溢
水口、18は外槽2内の洗濯水の水位を検出する水位セ
ンサー、19は上部に操作パネル20を有する制御ボッ
クス、21は洗濯機本体の上部の開口を閉塞する蓋であ
る。
1 and 2, 1 is a frame of a washing machine, 2 is an outer tub, 3 is a dehydration and washing tub (hereinafter referred to as a washing tub) arranged in the outer tub 2, and 4 is an upper part of the washing tub 3. A balance ring 5 provided on the bottom of the washing tub 3, a pulsator provided on the bottom of the washing tub 3, a washing machine motor 6 for rotating the pulsator 4 via a bearing 7, a drainage port 8 provided on the bottom of the outer tub 2, and 9
Is a drainage valve provided in the drainage channel 10, 11 is a drainage valve 9
A drainage solenoid for opening and closing, a reference numeral 12 denotes a bellows-shaped drainage hose attached to an end portion of the drainage channel 10, and a reference numeral 13 denotes a water supply channel 14
A water supply valve for supplying washing water to the washing tub 3, a water supply solenoid 15 for opening and closing the water supply valve 13, a 16 for an overflow port communicating with the drainage channel 10 via an overflow channel 17, and an outer tub 18 A water level sensor for detecting the water level of the washing water in 2, a control box 19 having an operation panel 20 on the upper portion, and a lid 21 for closing the upper opening of the washing machine body.

【0010】尚、前記排水ソレノイド11は、排水バル
ブ9を開放したとき、その動作に連動して洗濯機モータ
6の回転を洗濯槽3にも伝達するように軸受7内のクラ
ッチを切り換え、また排水バルブ9を閉塞したとき、洗
濯機モータ6の回転を伝達しないように軸受7内のクラ
ッチを切り換えている。
When the drain valve 9 is opened, the drain solenoid 11 switches the clutch in the bearing 7 so as to transmit the rotation of the washing machine motor 6 to the washing tub 3 when the drain valve 9 is opened. When the drain valve 9 is closed, the clutch in the bearing 7 is switched so that the rotation of the washing machine motor 6 is not transmitted.

【0011】23は洗濯機モータ6を左回転させるとき
にオンするトライアック、24は同じく右回転させると
きにオンするトライアック、25はトライアック23を
オンするために駆動するスイッチング素子となるトラン
ジスタ、26はトライアック24をオンするために駆動
するスイッチング素子となるトランジスタ、27は商用
電源28の零電圧を検知して同期信号を出力するゼロク
ロス検出部で、図5(a)及び(b)に示すように商用
電源の波形が零電圧付近を通過するごとに同期信号を出
力するものである。
Reference numeral 23 is a triac which is turned on when the washing machine motor 6 is rotated counterclockwise, 24 is a triac which is also turned on when the washing machine motor 6 is rotated clockwise, 25 is a transistor which is a switching element driven to turn on the triac 23, and 26 is A transistor that serves as a switching element that is driven to turn on the triac 24, and 27 is a zero-cross detector that detects a zero voltage of the commercial power supply 28 and outputs a synchronization signal, as shown in FIGS. 5 (a) and 5 (b). The synchronization signal is output each time the waveform of the commercial power supply passes near zero voltage.

【0012】29は操作パネル20のLED群を点灯す
るLED点灯回路、30は操作パネル20のスタートボ
タン等の入力キーからなる入力キー回路、31は蓋21
の開閉に応じてオンオフする蓋スイッチ、32は洗濯動
作の終了時に報知するブザー回路、33はトランジスタ
25、26を駆動する駆動部を兼用する、洗濯機の制御
を司る制御部、34は電源スイッチ35をオンしたと
き、制御部33をリセットするリセット回路である。
Reference numeral 29 is an LED lighting circuit for lighting the LED group of the operation panel 20, reference numeral 30 is an input key circuit including input keys such as a start button of the operation panel 20, and reference numeral 31 is a lid 21.
Lid switch that is turned on / off according to the opening / closing of the washing machine, 32 is a buzzer circuit for notifying when the washing operation is completed, 33 is also a drive unit that drives the transistors 25 and 26, a control unit that controls the washing machine, and 34 is a power switch This is a reset circuit that resets the control unit 33 when 35 is turned on.

【0013】前記制御部33は、洗濯時間等を計時する
タイマー35、トライアック23、24の導通期間を制
御する導通制御部36、ゼロクロス検出部27からの同
期信号を監視する監視部、38は洗濯機の動作プログラ
ムを記憶する記憶部を備えている。
The control unit 33 is a timer 35 for measuring the washing time, a conduction control unit 36 for controlling the conduction period of the triacs 23, 24, a monitoring unit for monitoring the synchronization signal from the zero-cross detection unit 27, and a washing unit 38. A storage unit for storing a machine operation program is provided.

【0014】図3に基づいて洗いの動作を説明する。ま
ず、正常なとき電源電圧の零電圧に同期して洗濯機モー
タ6を動作する同期運転について説明する。
The washing operation will be described with reference to FIG. First, the synchronous operation of operating the washing machine motor 6 in synchronization with the zero voltage of the power supply voltage in a normal state will be described.

【0015】最初ステップS1でタイマー35の動作を
開始させた後、ステップS2では監視部37でで0.1
秒間ゼロクロス検出部27から同期信号が出力されるか
どうか監視する。50Hzなら0.01秒に1回、60
Hzなら約0.008秒に1回零電圧が到来するので、
この間に必ずゼロクロス検出部27から制御部33に同
期信号が出力される。
First, the operation of the timer 35 is started in step S1, and then the monitoring unit 37 causes the timer 35 to operate at 0.1 in step S2.
It is monitored whether or not the synchronization signal is output from the zero-cross detector 27 for a second. If 50Hz, once every 0.01 seconds, 60
In case of Hz, the zero voltage arrives about once every 0.008 seconds.
During this period, the zero-cross detector 27 always outputs the synchronization signal to the controller 33.

【0016】制御部33に同期信号が入力されると、割
込フラグがセットされ、さらに現在実行している動作を
中断して、図4の割込ルーチンを実行する。
When a synchronizing signal is input to the control unit 33, the interrupt flag is set, the operation currently being executed is interrupted, and the interrupt routine of FIG. 4 is executed.

【0017】割込ルーチンでは、まずステップS9で割
込フラグがセットされているかリセットされているが判
断する。もし、リセットされていれば、何もせず割込ル
ーチンの実行を終了するようにしている。これは、ノイ
ズ等の影響により不必要なときにこの割込ルーチンに入
り込んで、実行しないために設けられている。
In the interrupt routine, it is first determined in step S9 whether the interrupt flag is set or reset. If it is reset, the execution of the interrupt routine is ended without doing anything. This is provided so that the interrupt routine is not entered and executed when unnecessary due to the influence of noise or the like.

【0018】割込フラグがセットされていることを確認
すれば、ステップS10で同期信号に同期して洗濯機モ
ータ6を動作する同期運転を実行する。
If it is confirmed that the interrupt flag is set, a synchronous operation for operating the washing machine motor 6 in synchronization with the synchronous signal is executed in step S10.

【0019】この同期運転は、例えば図5(c)ではに
トランジスタ25をt1からt2の間オンして洗濯機モ
ータ6を左回転させた後、t2からt4の間オフして洗
濯槽3内の洗濯水を惰性で回転させる動作を繰り返した
り、また、図5(d)ではトランジスタ25をt1から
t3の間オンして洗濯機モータ6を左回転させてからt
3からt5の間オフし、洗濯機モータ6を停止した後、
t5からt6の間トランジスタ26をオンして洗濯機モ
ータ6を右回転させる動作を繰り返している。
In this synchronous operation, for example, in FIG. 5 (c), the transistor 25 is turned on from t1 to t2 to rotate the washing machine motor 6 counterclockwise, and then turned off from t2 to t4 to turn the washing tub 3 inside. 5 (d), the transistor 25 is turned on from t1 to t3 to rotate the washing machine motor 6 to the left, and then t
After turning off from 3 to t5 and stopping the washing machine motor 6,
The operation of turning on the transistor 26 and rotating the washing machine motor 6 to the right is repeated from t5 to t6.

【0020】即ち、電源の半周期、又は1周期を1単位
としてトランジスタ25、26の通電制御して洗濯機モ
ータ6を回転制御することが同期運転である。
That is, the synchronous operation is to control the rotation of the washing machine motor 6 by controlling the energization of the transistors 25 and 26 with a half cycle of the power source or one cycle as one unit.

【0021】この後、図3の洗い工程に戻ると、割込フ
ラグはセットされたままであるので、ステップS5でセ
ット状態であると判断されて、ステップS6で割り込み
フラグをリセットし、ステップS2に戻る。
After this, when returning to the washing step of FIG. 3, since the interrupt flag is still set, it is judged in step S5 that it is in the set state, the interrupt flag is reset in step S6, and the process proceeds to step S2. Return.

【0022】ステップS2に戻ると再び上述の動作を繰
り返し動作する。この間、ステップS3で洗い時間が経
過したかどうか監視している。洗い時間が経過すれば、
上述の動作を停止して次工程であるすすぎ工程に移行す
るようにしている。
After returning to step S2, the above-mentioned operation is repeated again. During this time, it is monitored in step S3 whether or not the washing time has elapsed. If the washing time has passed,
The above-described operation is stopped and the process proceeds to the next process, the rinsing process.

【0023】次に、ゼロクロス検出部27から制御部3
3に同期信号が出力されなかった場合の動作を説明す
る。
Next, the zero cross detector 27 to the controller 3
The operation when the sync signal is not output to No. 3 will be described.

【0024】ステップS2で待機中に同期信号が制御部
33に出力されないと、割込フラグがセットされないの
で、ステップS5で割込フラグがリセット状態であると
判断される。次に、ステップS7において中止フラグが
セットされた後、ステップS8でタイマー35の計時に
従って洗濯機モータ6を動作するタイマー運転を実行す
る。
If the synchronizing signal is not output to the control unit 33 during the standby in step S2, the interrupt flag is not set, so that it is determined in step S5 that the interrupt flag is in the reset state. Next, after the stop flag is set in step S7, the timer operation of operating the washing machine motor 6 according to the time count of the timer 35 is executed in step S8.

【0025】該タイマー運転は、洗濯機モータ6をタイ
マー35の計時に基づいて右回転0.5秒−停止2秒−
左回転0.5秒−停止2秒の動作を繰り返し実行するも
のである。
In the timer operation, the washing machine motor 6 is rotated clockwise for 0.5 seconds based on the timing of the timer 35-stopped for 2 seconds-
The operation of left rotation 0.5 seconds-stop 2 seconds is repeatedly executed.

【0026】以上の動作により、電源から零電圧をゼロ
クロス検出部27が検出できなくても、制御部33はタ
イマー35の計時に基づいて、同期運転時と洗い動作が
近似するタイマー動作を行い、修理される間も洗濯でき
るようにする。
By the above operation, even if the zero-cross detection unit 27 cannot detect the zero voltage from the power source, the control unit 33 performs the timer operation such that the synchronous operation and the washing operation are similar based on the timing of the timer 35. Be able to wash while being repaired.

【0027】[0027]

【発明の効果】本発明によれば、零電圧が得られなくて
も、洗濯機は使用でき、使い勝手が向上するものであ
る。
According to the present invention, the washing machine can be used even if the zero voltage is not obtained, and the usability is improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の全自動洗濯機の正面断面図を示す。FIG. 1 shows a front sectional view of a fully automatic washing machine of the present invention.

【図2】本発明の制御ブロック図を示す。FIG. 2 shows a control block diagram of the present invention.

【図3】本発明の動作フローチャートを示す。FIG. 3 shows an operational flowchart of the present invention.

【図4】本発明の割り込みルーチンのフローチャートを
示す。
FIG. 4 shows a flowchart of an interrupt routine of the present invention.

【図5】本発明の波形図を示す図である。FIG. 5 is a diagram showing a waveform diagram of the present invention.

【符号の説明】[Explanation of symbols]

25 トランジスタ 26 トランジスタ 27 ゼロクロス検出部 33 制御部 35 タイマー 36 導通部 37 監視部 25 Transistor 26 Transistor 27 Zero Cross Detection Section 33 Control Section 35 Timer 36 Conducting Section 37 Monitoring Section

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 洗濯機モータの通電路を開閉するスイッ
チング素子と、該スイッチング素子を開閉する駆動部と
を設け、前記洗濯機モータに加える商用電源の半周期も
しくは数周期を導通の1単位として前記スイッチング素
子の導通制御を行う導通部と、前記商用電源の零電圧を
検出して同期信号を出力するゼロクロス検出部と、洗濯
時間等を計時するタイマーと、前記同期信号を監視し、
一定時間検出されなければ監視信号を出力する監視部
と、該監視部から前記監視信号が出力されると前記導通
部の制御とは関係なく、前記タイマーにより前記駆動部
を制御することを特徴とした洗濯機。
1. A switching element for opening / closing a power supply path of a washing machine motor and a drive section for opening / closing the switching element are provided, and a half cycle or several cycles of a commercial power source applied to the washing machine motor is set as one unit of conduction. A conduction unit that controls conduction of the switching element, a zero-crossing detection unit that detects a zero voltage of the commercial power source and outputs a synchronization signal, a timer that measures a washing time, and the synchronization signal is monitored,
The drive unit is controlled by the timer regardless of the control of the monitoring unit that outputs a monitoring signal if it is not detected for a certain period of time and the control of the conducting unit when the monitoring signal is output from the monitoring unit. Washing machine.
JP4064758A 1992-03-23 1992-03-23 Washing machine Expired - Fee Related JP2693079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4064758A JP2693079B2 (en) 1992-03-23 1992-03-23 Washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4064758A JP2693079B2 (en) 1992-03-23 1992-03-23 Washing machine

Publications (2)

Publication Number Publication Date
JPH05269288A true JPH05269288A (en) 1993-10-19
JP2693079B2 JP2693079B2 (en) 1997-12-17

Family

ID=13267401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4064758A Expired - Fee Related JP2693079B2 (en) 1992-03-23 1992-03-23 Washing machine

Country Status (1)

Country Link
JP (1) JP2693079B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03144377A (en) * 1989-10-30 1991-06-19 Matsushita Electric Ind Co Ltd Power source frequency judging apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03144377A (en) * 1989-10-30 1991-06-19 Matsushita Electric Ind Co Ltd Power source frequency judging apparatus

Also Published As

Publication number Publication date
JP2693079B2 (en) 1997-12-17

Similar Documents

Publication Publication Date Title
JP2000202190A (en) Door open safety device for washing machine
JP2693079B2 (en) Washing machine
JPH06238087A (en) Washing machine
JPH0244557B2 (en)
JP2991515B2 (en) Washing machine
KR970000333B1 (en) Washing motor breaking method for full automatic washing machine
JP2001009189A (en) Washing machine
KR0133487B1 (en) Dry cleaning washing method
JPH1155977A (en) Control circuit for capacitor motor and dewatering device provided with the control circuit
JPH11114274A (en) Washing machine
JPH03168184A (en) Washing machine
JPH0221013Y2 (en)
JPH0866576A (en) Full automatic washer
KR950007081B1 (en) Door opening alarm method
JP3304244B2 (en) Washing machine
JPH0523192Y2 (en)
JP2003205196A (en) Washing machine
JP2778757B2 (en) Washing machine
KR960012896B1 (en) Dehydration motor stopping method for washing machine
JP3647976B2 (en) Electric washing machine
JPH0663280A (en) Washing machine
JPH06105583B2 (en) Power supply opening / closing control device for washing machines
JPH0228999B2 (en)
KR0161012B1 (en) Automatic rinsing method of washing machine having drum type tube
JPH09313767A (en) Two-tub washing machine

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees