JP3245891B2 - Electric washing machine - Google Patents
Electric washing machineInfo
- Publication number
- JP3245891B2 JP3245891B2 JP16030891A JP16030891A JP3245891B2 JP 3245891 B2 JP3245891 B2 JP 3245891B2 JP 16030891 A JP16030891 A JP 16030891A JP 16030891 A JP16030891 A JP 16030891A JP 3245891 B2 JP3245891 B2 JP 3245891B2
- Authority
- JP
- Japan
- Prior art keywords
- washing
- cloth
- dehydration
- dewatering
- tub
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Washing Machine And Dryer (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は脱水工程において、洗濯
兼脱水槽内の布の偏りを検知する電気洗濯機に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric washing machine for detecting a deviation of a cloth in a washing and dewatering tub in a dehydrating step.
【０００２】[0002]
【従来の技術】近年、電気洗濯機は脱水時の振動及び騒
音を低減することが求められている。2. Description of the Related Art In recent years, electric washing machines have been required to reduce vibration and noise during dehydration.
【０００３】以下に従来の電気洗濯機について説明す
る。図４は従来の電気洗濯機の構造を示すものである。
図４において、１は脱水受けで、２は洗濯兼脱水槽であ
り、この洗濯兼脱水槽の内低部にはパルセーター３を配
設しており、減速機構４を介しモータ５を制御手段６に
より通電制御することにより前記洗濯兼脱水槽２とパル
セーター３を駆動している。さらに、外側はボデーＢ８
及びボデーＡ７に囲まれており、ボデーＢ８内には、Ｓ
Ｆスイッチ９があり、入力部１０に出力する構成であ
る。Hereinafter, a conventional electric washing machine will be described. FIG. 4 shows the structure of a conventional electric washing machine.
In FIG. 4, reference numeral 1 denotes a dehydration tray, 2 denotes a washing and dewatering tub, and a pulsator 3 is disposed in an inner lower part of the washing and dehydration tub. The washing and dewatering tub 2 and the pulsator 3 are driven by controlling the energization by 6. Furthermore, the outside is body B8
And body A7, and in body B8, S
There is an F-switch 9 for outputting to the input unit 10.
【０００４】以上のように構成された電気洗濯機につい
て、以下その動作について説明する。まず、脱水時、制
御手段６によりモータへの通電ＯＮ−ＯＦＦを繰り返
す、いわゆる間欠脱水工程において、洗濯兼脱水槽２内
の布の偏りによって洗濯兼脱水槽２の外槽である脱水受
１がＳＦスイッチ９に接触しその信号を入力部１０に出
力し制御手段６がモータ５を停止しすることにより、脱
水動作を中断させ、布の偏りによる、前記脱水受１のボ
デーＡ７への当たりによる異常振動・異常音を防止して
いた。The operation of the electric washing machine configured as described above will be described below. First, at the time of dehydration, the control unit 6 repeats energization ON-OFF to the motor. In a so-called intermittent dehydration step, the dehydration tray 1 which is the outer tub of the washing and dehydrating tub 2 is displaced by the bias of the cloth in the washing and dehydrating tub 2. The dewatering operation is interrupted by contacting the SF switch 9 to output the signal to the input unit 10 and stopping the motor 5 by the control means 6, so that the dewatering receiver 1 hits the body A7 due to the bias of the cloth. Abnormal vibration and abnormal sound were prevented.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら上記の従
来の構成では、脱水受が横方向に振れ廻ることにより、
ＳＦスイッチに接触することにより布の偏りを検知して
おり、脱水受の横方向の共振周波数は、１〜２ＨＺ程度
であり、洗濯兼脱水槽の低速回転時の布の偏りによる脱
水受の異常振動しか検知することができないので、脱水
前に布が中央に集まっている場合、低速回転時は布は中
央にあり脱水受は、バランス状態にあるため、脱水受け
の横方向の振れ廻りは小さくＳＦスイッチに接触しない
が、少し回転数が増加すると、中央にあった布が洗濯兼
脱水槽の内周面に移動しアンバランス状態になり、しか
も、脱水受の縦方向の共振周波数である３〜５ＨＺ程度
の領域に達すると、脱水受は縦方向に激しく振れる様に
なり脱水受けのボデーＢへの突き上げ、ボデーＡへの当
たり及びサスペンションの全圧縮による異常振動、異常
音という問題を有していた。However, in the above-described conventional configuration, the dewatering receiver oscillates laterally,
The bias of the cloth is detected by contacting the SF switch. The horizontal resonance frequency of the dewatering receiver is about 1 to 2HZ. Since only vibration can be detected, if the cloth is gathered in the center before dehydration, the cloth is in the center during low-speed rotation and the dehydration tray is in a balanced state, so the horizontal swing of the dehydration tray is small. Although it does not touch the SF switch, when the number of rotations slightly increases, the cloth located in the center moves to the inner peripheral surface of the washing and spin-drying tub and becomes unbalanced, and the resonance frequency in the vertical direction of the spin-drying receiver is 3 When it reaches the region of about 5HZ, the dewatering receiver shakes violently in the vertical direction, causing the dewatering receiver to push up to the body B, hit the body A, and cause abnormal vibration and noise due to full compression of the suspension. Which was.
【０００６】本発明は上記従来の問題点を解決するもの
で、脱水工程において洗濯兼脱水槽内の布の偏りを検知
し異常振動、異常音を防止する電気洗濯機を提供するこ
とを目的とする。An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide an electric washing machine which detects a bias of cloth in a washing and spin-drying tub in a spin-drying step and prevents abnormal vibration and abnormal noise. I do.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に本発明の電気洗濯機は、洗濯兼脱水槽と、この洗濯兼
脱水槽の内底部に配設したパルセーターを駆動するモー
タと、前記モータへの通電制御を行う制御手段と、前記
洗濯機兼脱水槽内に投入した布負荷量を検知する布負荷
量検知手段と、前記洗濯兼脱水槽の回転数を検知する回
転数検知手段とを備え、前記制御手段が前記モータへの
通電ＯＮ−ＯＦＦを繰り返す間欠脱水工程において、前
記布負荷量検知手段により検知された布負荷量に応じて
前記洗濯兼脱水槽の回転数を設定すると共にその設定し
た回転数に到達するまでの到達時間を設定し、前記回転
数検知手段が前記設定した回転数に到達することを検知
するまでの時間と前記設定した到達時間により、前記洗
濯兼脱水槽内の布の偏りを検知する構成を有している。In order to achieve the above object, an electric washing machine according to the present invention comprises a washing and dewatering tub, a motor for driving a pulsator disposed at an inner bottom of the washing and dewatering tub, and Control means for controlling the power supply to the motor; cloth load amount detecting means for detecting a cloth load amount inputted into the washing machine and dewatering tub; and rotation speed detecting means for detecting a rotation speed of the washing and dewatering tub. In the intermittent dewatering step in which the control means repeats ON / OFF of the power supply to the motor, the intermittent dehydration step is performed in accordance with a cloth load amount detected by the cloth load amount detecting means.
Set and set the number of revolutions of the washing and spinning tub
Set the arrival time until the rotation speed reaches
It is configured to detect the deviation of the cloth in the washing and dewatering tub based on the time until the number detecting means reaches the set rotation speed and the set arrival time . .
【０００８】[0008]
【作用】この構成によって、脱水前に布が中央に集まっ
ていて、低速回転時は布は中央にあり脱水受は、バラン
ス状態にある為脱水受けの横方向の振れ廻りは小さくＳ
Ｆスイッチに接触しないが、少し回転数が増加すると、
中央にあった布が洗濯兼脱水槽の内周面に移動しアンバ
ランス状態になり、しかも、脱水受の縦方向の共振周波
数である３〜５ＨＺ程度の領域に達したとしても、脱水
受が縦方向に振れ始めると回転数あ増加速度が鈍化し、
定められた回転数に達する時間が増加するため、縦方向
の振れを検知でき、激しい振れによる脱水受けのボデー
Ｂへの突き上げボデーＡへの当たり及びサスペンション
の全圧縮による異常振動、異常音を防止することができ
る。With this structure, the cloth is gathered at the center before dewatering, and at the time of low-speed rotation, the cloth is at the center and the dewatering receiver is in a balanced state, so that the horizontal swing of the dewatering receiver is small.
It does not touch the F switch, but when the rotation speed increases a little,
Even if the cloth in the center moves to the inner peripheral surface of the washing and dewatering tub and becomes unbalanced, and even if it reaches the region of about 3 to 5 HZ which is the vertical resonance frequency of the dehydration receiver, When it starts to oscillate in the vertical direction, the increase speed slows down,
Since the time required to reach the specified number of revolutions increases, vertical run-out can be detected, and abnormal vibration and abnormal noise due to the impact of the dehydration catch on the body A due to the strong run-out and the full compression of the suspension are prevented. can do.
【０００９】[0009]
【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。図１において、１は脱水受けで、２
は洗濯兼脱水槽であり、この洗濯兼脱水槽の内底部には
パルセーター３を配設しており、減速機構４を介しモー
タ５を制御手段６により通電制御することにより前記洗
濯兼脱水槽２とパルセーター３を駆動している。さら
に、外側はボデーＢ８及びボデーＡ７に囲まれており、
ボデーＢ８内には、ＳＦスイッチ９があり、入力部１０
に出力する構成である。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a dehydration tray, 2
Is a washing and dewatering tub, and a pulsator 3 is provided at the inner bottom of the washing and dewatering tub. 2 and the pulsator 3 are driven. Furthermore, the outside is surrounded by body B8 and body A7,
An SF switch 9 is provided in the body B8, and an input unit 10
Is output.
【００１０】また、制御装置１２には、マイクロコンピ
ュータなどにより構成し上記制御手段６と、洗濯兼脱水
槽２内に投入した布負荷量を検知する布負荷量検知手段
１３と、洗濯兼脱水槽２の回転数を検知する回転数検知
手段１４を備えている。この布負荷量検知手段１３は洗
濯時、制御手段６によりモータ５に所定時間通電し、そ
の後のＯＦＦ期間内におけるモータ５の回転数に相関し
たパラメータの減衰率にもとずいて布負荷量を検知する
もので、たとえば布負荷量が多い場合にはモータ５の回
転数は急速に減少し、モータの進相コンデンサの電圧も
減少するので、この進相コンデンサの電圧を検知するこ
とにより布負荷量を検知することができる。また、回転
数検知手段１４は円周方向飛に数等分されたリング状の
磁石をモータ５の軸に同心状に取りつけ、回転する時の
磁束の変化をホールＩＣで読み取りパルスに変換し制御
装置１２に出力することにより回転数を検知できる。The control device 12 includes a microcomputer and the like, the control means 6, a cloth load amount detecting means 13 for detecting a cloth load amount inputted into the washing and dewatering tub 2, and a washing and dewatering tub. 2 is provided with rotation number detecting means 14 for detecting the number of rotations. During the washing, the cloth load amount detecting means 13 supplies a current to the motor 5 for a predetermined time by the control means 6, and detects the cloth load amount based on the decay rate of a parameter correlated with the rotation speed of the motor 5 during the OFF period thereafter. For example, when the cloth load amount is large, the number of revolutions of the motor 5 decreases rapidly and the voltage of the phase-advancing capacitor of the motor also decreases. The amount can be detected. In addition, the rotation number detecting means 14 concentrically mounts a ring-shaped magnet equally divided in the circumferential direction on the axis of the motor 5, converts a change in magnetic flux during rotation into a reading pulse by a Hall IC, and controls the rotation. By outputting to the device 12, the number of rotations can be detected.
【００１１】以上のように構成された電気洗濯機につい
て、図２を用いてその動作を説明する。まず、ステップ
１で布負荷量検知手段１３によって布負荷量を検知し、
布負荷量が少量の場合時間と回転数は図３（ａ）のよう
な関係になり、布負荷量が多量の場合は（ｂ）のような
関係になる。ステップ２で各布負荷量にあった回転数と
その回転数に達するまでの時間（この場合は、ｎ１とＴ
１）を設定する。ステップ３で洗濯、ステップ４で排水
を行いステップ５で間欠脱水工程に入ると、ステップ６
で時間カウントスタートしステップ７で回転数検知スタ
ートする。ステップ８で回転数検知手段１４により検知
された回転数ｎがｎ＝ｎ１になると、ステップ９でその
回転数に達するまでの時間ｔ１がｔ１＜＝Ｔ１の場合は
ステップ１０でそのまま脱水工程を継続し、ｔ１＞Ｔ１
の場合はステップ１１で制御手段６によりモータ５を停
止しステップ１２で次工程に移る。したがって、布負荷
量が少ない場合で、脱水前に布が中央に集まっていて、
低速回転時は布は中央にあり脱水受１は、バランス状態
にある為脱水受１の横方向の振れ廻りは小さくＳＦスイ
ッチ９に接触しないが、少し回転数が増加すると、中央
にあった布が洗濯兼脱水槽２の内周面に移動しアンバラ
ンス状態になり、しかも、脱水受１の縦方向の共振周波
数である３〜５ＨＺ程度の領域に達したとしても、脱水
受１が縦方向に振れ始めると回転数増加速度が鈍化し、
定められた回転数に達する時間が増加するため、縦方向
の振れを検知でき、激しい振れによる脱水受１けのボデ
ーＢ８への突き上げボデーＡ７への当たり及びサスペン
ション１５の全圧縮による異常振動、異常音を防止する
ことができる。また、布負荷量が多量の場合も同様であ
る。The operation of the electric washing machine configured as described above will be described with reference to FIG. First, in step 1, the cloth load amount is detected by the cloth load amount detecting means 13,
When the cloth load is small, the time and the number of revolutions have a relationship as shown in FIG. 3A, and when the cloth load is large, the relation as shown in FIG. 3B. The number of rotations corresponding to each cloth load amount in step 2 and the time required to reach the number of rotations (in this case, n1 and T
Set 1). If washing is performed in step 3 and drainage is performed in step 4 and the intermittent dehydration process is started in step 5,
, The time counting starts, and in step 7, the rotation speed detection starts. When the rotation speed n detected by the rotation speed detecting means 14 at step 8 becomes n = n1, if the time t1 until reaching the rotation speed at step 9 is t1 <= T1, the dehydration process is continued at step 10 as it is. And t1> T1
In the case of (1), the motor 5 is stopped by the control means 6 in step 11, and the next process is performed in step 12. Therefore, when the cloth load is small, the cloth is gathered in the center before dehydration,
During low-speed rotation, the cloth is in the center and the dewatering receiver 1 is in a balanced state, so that the spinning of the dewatering receiver 1 in the lateral direction is small and does not contact the SF switch 9; Moves to the inner peripheral surface of the washing and spin-drying tub 2 and becomes unbalanced, and even if it reaches a region of about 3 to 5 HZ which is the vertical resonance frequency of the spin-drying receiver 1, When it starts to swing, the rotation speed increase speed slows down,
Since the time required to reach the predetermined number of rotations increases, the vertical run-out can be detected, and the vibrating run-up causes the body B8 to push up to the body B8 with one dehydration receiver and the abnormal vibration and abnormalities due to the full compression of the suspension 15. Sound can be prevented. The same applies to the case where the cloth load amount is large.
【００１２】以上のように本実施例によれば、布負荷量
の多少によらず、洗濯兼脱水槽の低速回転時の布の偏り
による脱水受の異常振動だけでなく、脱水前に布が中央
に集まっていて、低速回転時は布は中央にあり脱水受
は、バランス状態にある為脱水受けの横方向の振れ廻り
は小さくＳＦスイッチに接触しないが、少し回転数が増
加すると、中央にあった布が洗濯兼脱水槽の内周面に移
動しアンバランス状態になり、しかも、脱水受の縦方向
の共振周波数である３〜５ＨＺ程度の領域に達したとし
ても、脱水受が縦方向に振れ始めると回転数増加速度が
鈍化し、定められた回転数に達する時間が増加するた
め、縦方向の振れを検知でき、激しい振れによる脱水受
けのボデーＢへの突き上げボデーＡへの当たり及びサス
ペンションの全圧縮による異常振動、異常音を防止する
ことができる。As described above, according to the present embodiment, regardless of the amount of the cloth load, not only the abnormal vibration of the dehydration receiving due to the imbalance of the cloth at the time of low-speed rotation of the washing and dewatering tub, but also the cloth It is gathered in the center, the cloth is in the center at low speed rotation and the dehydration receiver is in a balanced state, so the horizontal swing of the dehydration receiver is small and does not touch the SF switch, but if the rotation speed increases slightly, it will be in the center. Even if the cloth moved to the inner peripheral surface of the washing and dewatering tub and becomes unbalanced, and even when it reaches a region of about 3 to 5 HZ, which is the vertical resonance frequency of the dewatering receiver, the dewatering receiver is still in the vertical direction. When the vibration starts, the rotation speed increase speed slows down, and the time to reach the predetermined rotation speed increases, so that the vertical vibration can be detected, and the dehydration receiver due to the severe vibration hits the body B and pushes up the body A. For full suspension compression That abnormal vibration, it is possible to prevent the abnormal sound.
【００１３】[0013]
【発明の効果】以上のように本発明は、布負荷量検知手
段により検知された布負荷量に応じ定められた回転数に
回転数検知手段により検知された、洗濯兼脱水槽の回転
数が達するまでの時間を検知することで、洗濯兼脱水槽
内の布の偏りを検知することができ、洗濯兼脱水槽の低
速回転時の布の偏りによる脱水受の異常振動だけでな
く、脱水前に布が中央に集まっていて、低速回転時は布
は中央にあり脱水受は、バランス状態にある為脱水受け
の横方向の振れ廻りは小さくＳＦスイッチに接触しない
が少し回転数が増加すると、中央にあった布が洗濯兼脱
水槽の内周面に移動しアンバランス状態になり、しか
も、脱水受の縦方向の共振周波数である３〜５ＨＺ程度
の領域に達したとしても、脱水受が縦方向に振れ始める
と回転数増加速度が鈍化し定められた回転数に達する時
間が増加するため、縦方向の振れを検知でき、激しい振
れによる脱水受けのボデーＢへの突き上げボデーＡへの
当たり及びサスペンションの全圧縮による異常振動、異
常音を防止することができる。優れた電気洗濯機を実現
できるものである。As described above, according to the present invention, the number of revolutions of the washing and dewatering tub detected by the number of revolutions detected by the number of revolutions determined in accordance with the amount of cloth load detected by the amount of cloth load detection means. By detecting the time to reach, the deviation of the cloth in the washing and spin-drying tub can be detected. The cloth is gathered in the center, the cloth is in the center during low-speed rotation, and the dehydration receiver is in a balanced state, so the horizontal swing of the dehydration receiver is small and does not touch the SF switch, but if the rotation speed increases slightly, Even if the cloth in the center moves to the inner peripheral surface of the washing and dewatering tub and becomes unbalanced, and even if it reaches the region of about 3 to 5 HZ which is the vertical resonance frequency of the dehydration receiver, The speed of increase in rotation speed slows down when it starts to oscillate in the vertical direction. Since the time required to reach the predetermined number of rotations increases, vertical vibration can be detected, and abnormal vibration and abnormal noise due to contact of the dehydration receiver with the body B pushing up to the body B due to severe vibration and full compression of the suspension are detected. Can be prevented. An excellent electric washing machine can be realized.
【図１】本発明の第１の実施例における電気洗濯機のブ
ロック図FIG. 1 is a block diagram of an electric washing machine according to a first embodiment of the present invention.
【図２】第１の実施例における電気洗濯機の動作説明の
ための要部フローチヤート図FIG. 2 is a main part flowchart for explaining the operation of the electric washing machine in the first embodiment.
【図３】（ａ），（ｂ）は同電気洗濯機の布負荷量が少
量と多量の場合の脱水時間と回転数の特性図FIGS. 3A and 3B are characteristic diagrams of dewatering time and rotation speed of the electric washing machine when the cloth load is small and large.
【図４】従来の電気洗濯機のブロック図FIG. 4 is a block diagram of a conventional electric washing machine.
１ 脱水受 ２ 洗濯兼脱水槽 ６ 制御手段 １２ 制御装置 １３ 布負荷量検知手段 １４ 回転数検知手段 DESCRIPTION OF SYMBOLS 1 Dehydration receiving 2 Washing and dehydration tub 6 Control means 12 Control device 13 Cloth load amount detection means 14 Number of rotations detection means
Claims (1)
底部に配設したパルセーターを駆動するモータと、前記
モータへの通電制御を行う制御手段と、前記洗濯機兼脱
水槽内に投入した布負荷量を検知する布負荷量検知手段
と、前記洗濯兼脱水槽の回転数を検知する回転数検知手
段とを備え、前記制御手段が前記モータへの通電ＯＮ−
ＯＦＦを繰り返す間欠脱水工程において、前記布負荷量
検知手段により検知された布負荷量に応じて前記洗濯兼
脱水槽の回転数を設定すると共にその設定した回転数に
到達するまでの到達時間を設定し、前記回転数検知手段
が前記設定した回転数に到達することを検知するまでの
時間と前記設定した到達時間により、前記洗濯兼脱水槽
内の布の偏りを検知することを特徴とする電気洗濯機。1. A washing and dewatering tub, a motor for driving a pulsator disposed at an inner bottom portion of the washing and dewatering tub, control means for controlling energization of the motor, A cloth load amount detecting means for detecting a cloth load amount inputted to the washing machine; and a rotation number detecting means for detecting a rotation number of the washing and dewatering tub.
In the intermittent dehydration step of repeating OFF, the washing and loading is performed in accordance with the cloth load detected by the cloth load detecting means.
Set the rotation speed of the dehydration tub and adjust to the set rotation speed.
The arrival time until arrival is set, and the rotation speed detecting means is set.
An electric washing machine characterized by detecting a bias of the cloth in the washing and dewatering tub based on a time until it detects that the set number of rotations is reached and the set arrival time .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16030891A JP3245891B2 (en) | 1991-07-01 | 1991-07-01 | Electric washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16030891A JP3245891B2 (en) | 1991-07-01 | 1991-07-01 | Electric washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH057692A JPH057692A (en) | 1993-01-19 |
| JP3245891B2 true JP3245891B2 (en) | 2002-01-15 |
Family
ID=15712154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16030891A Expired - Fee Related JP3245891B2 (en) | 1991-07-01 | 1991-07-01 | Electric washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3245891B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4426399B2 (en) * | 2003-08-07 | 2010-03-03 | エルジー エレクトロニクス インコーポレイティド | Washing machine dewatering control method |
-
1991
- 1991-07-01 JP JP16030891A patent/JP3245891B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057692A (en) | 1993-01-19 |
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