JPH0249760B2 - - Google Patents
Info
- Publication number
- JPH0249760B2 JPH0249760B2 JP56117392A JP11739281A JPH0249760B2 JP H0249760 B2 JPH0249760 B2 JP H0249760B2 JP 56117392 A JP56117392 A JP 56117392A JP 11739281 A JP11739281 A JP 11739281A JP H0249760 B2 JPH0249760 B2 JP H0249760B2
- Authority
- JP
- Japan
- Prior art keywords
- dehydration
- section
- motor
- rotation speed
- circuit
- 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 - Lifetime
Links
- 230000018044 dehydration Effects 0.000 claims description 24
- 238000006297 dehydration reaction Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 9
- 238000005406 washing Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Centrifugal Separators (AREA)
Description
【発明の詳細な説明】
本発明は洗濯脱水機の脱水制御装置に関するも
のである。自動洗濯機において排水系に故障があ
つて脱水槽の内部に水が残存するとき、あるいは
洗濯物の含水量が多く、その重量が過大なときは
脱水槽を高速回転させるモータが過負荷となつて
焼損等の事故の原因となることがある。本発明は
かゝる場合に脱水運転を停止すると共にその表示
又は報知を行なつて使用者の注意をかんきする脱
水制御装置を備えた洗濯脱水機を提供することを
目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehydration control device for a washer dehydrator. When the drainage system of an automatic washing machine malfunctions and water remains inside the dehydration tank, or when the laundry has a high moisture content and is excessively heavy, the motor that rotates the dehydration tank at high speed may become overloaded. This may cause accidents such as burnout. SUMMARY OF THE INVENTION An object of the present invention is to provide a washing/extracting machine equipped with a dehydration control device that stops the dehydration operation in such a case and displays or notifies the user of the dehydration operation to alert the user.
本発明の実施例を図面について説明する。第１
図は本発明の脱水制御装置を備えた自動洗濯機の
制御装置の全体の構成を示している。同図におい
て、１はプログラム選択部で、洗濯プログラムを
選択する選択スイツチよりなる。２は状態検知部
で、洗濯槽の水位を検出する水位スイツチ、洗濯
機の蓋の開閉状態を検知する蓋スイツチ、脱水時
の異常振動を検知する安全スイツチ等よりなる。
３は動作制御部で、予め設定された複数の洗濯プ
ログラムを記憶し、入力信号によつて指定された
プログラムにしたがつて負荷を制御するマイクロ
コンピユータによつて構成されている。４は洗
濯、すゝぎ、排水、脱水等の一連の動作を行なう
ための駆動モータ、給水電磁弁、排水電磁弁等よ
りなる負荷部５を動作制御部３からの信号によつ
て制御する負荷制御回路で、負荷部５を直接、制
御する半導体スイツチング回路と、動作制御部３
からの信号を前記半導体スイツチング回路の制御
信号のレベルに変換するドライブ回路とよりな
る。６は発光ダイオード等により工程を表示する
動作表示部７を動作制御部３からの信号によつて
制御する動作表示用ドライブ回路である。８はモ
ータ又は脱水槽の回転数数を検知する回転検知
部、９は回転検知部８の出力を動作制御部３への
入力信号に変換する信号変換部、１０は動作制御
部３からの信号によつて洗濯の終了や異常を報知
をする報知部である。 Embodiments of the present invention will be described with reference to the drawings. 1st
The figure shows the overall configuration of a control device for an automatic washing machine equipped with a dewatering control device of the present invention. In the figure, numeral 1 denotes a program selection section, which is comprised of a selection switch for selecting a washing program. Reference numeral 2 denotes a status detection unit, which includes a water level switch that detects the water level in the washing tub, a lid switch that detects the open/closed state of the lid of the washing machine, and a safety switch that detects abnormal vibrations during spin-drying.
Reference numeral 3 denotes an operation control section, which is composed of a microcomputer that stores a plurality of preset washing programs and controls the load according to the program specified by an input signal. Reference numeral 4 denotes a load control unit which controls a load unit 5, which includes a drive motor, a water supply solenoid valve, a drain solenoid valve, etc., for performing a series of operations such as washing, rinsing, draining, and dewatering, etc., using signals from the operation control unit 3. A semiconductor switching circuit that directly controls the load section 5 and an operation control section 3.
and a drive circuit that converts the signal from the semiconductor switching circuit into the level of the control signal of the semiconductor switching circuit. Reference numeral 6 denotes an operation display drive circuit that controls an operation display section 7 that displays the process using a light emitting diode or the like based on a signal from the operation control section 3. 8 is a rotation detection unit that detects the rotation speed of the motor or dehydration tank; 9 is a signal conversion unit that converts the output of the rotation detection unit 8 into an input signal to the operation control unit 3; and 10 is a signal from the operation control unit 3. This is a notification section that notifies you of the completion of washing or abnormalities.
第２図はモータ又は脱水槽の回転の立上りを示
している。Ａは正常な脱水が行なわれているとき
であり、一定の時間Ｔが経過するとモータ又は脱
水槽の回転数は飽和回転数Ｓに達する。Ｂは脱水
槽の異常によつてモータが過負荷になつていると
きであり、一定の時間Ｔを経過しても飽和回転数
Ｓに到達せず、その回転数はＮを上下している。
Ｍはモータの許容最大負荷時の回転数（基準回転
数）であり、一定の時間Ｔが経過したときの回転
数がＭに到達しないときは、本発明の脱水制御装
置が作動する。 FIG. 2 shows the start of rotation of the motor or the dewatering tank. A is a time when normal dehydration is being performed, and after a certain period of time T has elapsed, the rotation speed of the motor or the dehydration tank reaches the saturation rotation speed S. B is a time when the motor is overloaded due to an abnormality in the dehydration tank, and the saturation rotation speed S has not been reached even after a certain period of time T has elapsed, and the rotation speed has fluctuated above and below N.
M is the rotational speed (reference rotational speed) at the maximum allowable load of the motor, and when the rotational speed does not reach M after a certain period of time T has elapsed, the dewatering control device of the present invention is activated.
第３図は回転検出部８、信号変換部９および報
知部１０の具体的な回路例を示している。１１は
モータ又は脱水槽に貼着した検出金属片、１２は
近接スイツチである。モータ又は脱水槽が１回転
すると近接スイツチ１２の出力にパルス電圧が発
生し、モータ又は脱水槽の回転数は単位時間当り
のパルス電圧の数（パルス周波数）によつて検出
される。信号変換部９はｆ−Ｖ変換回路１３と電
圧比較回路１４とよりなり、近接スイツチ１２の
周波数出力はｆ−Ｖ変換回路１３によつて電圧信
号に変換され、電圧比較回路１４の＋端子に印加
される。電圧比較回路１４の−端子には基準電圧
が印加されていて、＋端子に印加された入力電圧
はこれと比較される。いま、モータ又は脱水槽の
回転数がｆ−Ｖ変換回路１３によつて電圧信号に
変換されて電圧比較回路１４に作用したとき、電
圧比較回路１４の出力は、モータ又は脱水槽の回
転数が基準回転数Ｍより低いときはローレベル、
Ｍより高いときはハイレベルとなるよう設定すれ
ば、動作制御部３の入力端子Aiの電圧レベルを
変化させることができる。一方、動作制御部３は
脱水運転が開始されてから入力端子Aiの電圧レ
ベルが変化する迄の時間を計測しており、一定の
時間Ｔを経過しても入力端子Aiの電圧レベルに
変化のないとき、すなわちモータ又は脱水槽の回
転数が基準回転数Ｍに達しないときは、報知部１
０のスイツチングトランジス１５をオンにしてブ
ザー１６によりこれを報知する。なお、上記実施
例においては、回転検知部８における回転数の検
出を検出金属片１１および近接スイツチ１２によ
り行なつているが、その他の手段として磁石とホ
ールIC又はリードスイツチによる方法あるいは
タコメータ発電機を利用する方法などがある。 FIG. 3 shows a specific circuit example of the rotation detecting section 8, the signal converting section 9, and the notifying section 10. 11 is a detection metal piece attached to the motor or the dehydration tank, and 12 is a proximity switch. When the motor or dehydration tank rotates once, a pulse voltage is generated at the output of the proximity switch 12, and the number of revolutions of the motor or dehydration tank is detected by the number of pulse voltages per unit time (pulse frequency). The signal converter 9 includes an f-V converter circuit 13 and a voltage comparator circuit 14. The frequency output of the proximity switch 12 is converted into a voltage signal by the f-V converter circuit 13, and the voltage signal is sent to the + terminal of the voltage comparator circuit 14. applied. A reference voltage is applied to the - terminal of the voltage comparison circuit 14, and the input voltage applied to the + terminal is compared with this. Now, when the rotation speed of the motor or dehydration tank is converted into a voltage signal by the f-V conversion circuit 13 and applied to the voltage comparison circuit 14, the output of the voltage comparison circuit 14 is determined by the rotation speed of the motor or dehydration tank. Low level when lower than standard rotation speed M;
By setting the voltage level to be high when it is higher than M, the voltage level of the input terminal Ai of the operation control section 3 can be changed. On the other hand, the operation control unit 3 measures the time from the start of the dehydration operation until the voltage level of the input terminal Ai changes, and even after a certain period of time T has elapsed, the voltage level of the input terminal Ai does not change. When there is not, that is, when the rotation speed of the motor or dehydration tank does not reach the reference rotation speed M, the notification unit 1
0 switching transistor 15 is turned on and a buzzer 16 notifies this. In the above embodiment, the rotation speed in the rotation detection section 8 is detected by the detection metal piece 11 and the proximity switch 12, but other means include a method using a magnet and a Hall IC or a reed switch, or a tachometer generator. There are ways to use .
以上述べたように本発明は、洗濯物を投入した
脱水槽の回転数を検出し、該回転数が一定の時間
内に所定の回転数に到達しないときは脱水運転が
停止されるよう制御すると共に、その表示又は報
知を行なうことを特徴とする洗濯脱水機の脱水制
御装置であつて、脱水槽に異常負荷を生じたとき
に脱水運転を停止すると共に警報を発してモータ
の過負荷による事故の発生を未然に防止するすぐ
れた効果を有する。 As described above, the present invention detects the rotation speed of the spin-drying tank into which laundry is placed, and controls the spin-drying operation to be stopped when the rotation speed does not reach a predetermined rotation speed within a certain period of time. This is a dehydration control device for a washer dehydrator, which is characterized by displaying or notifying the dehydration tank, and which stops the dehydration operation and issues an alarm when an abnormal load occurs in the dehydration tank to prevent accidents caused by motor overload. It has an excellent effect of preventing the occurrence of.
第１図：本発明の洗濯脱水機の制御装置全体の
構成を示すブロツク図、第２図：モータ又は脱水
槽の回転の立上りを示すグラフ、第３図：本発明
の脱水制御装置の実施例の具体的な回路を示す図
〔記号〕、１……プログラム選択部、２……状
態検知部、３……動作制御部、４……負荷制御回
路、５……負荷部、６……動作表示用ドライブ回
路、７……動作表示部、８……回転検知部、９…
…信号変換部、１０……報知部、１１……検出金
属片、１２……近接スイツチ、１３……ｆ−Ｖ変
換回路、１４……電圧比較回路、１５……トラン
ジスタスイツチ、１６……ブザー。
Fig. 1: A block diagram showing the overall configuration of the control device for the washer-extractor of the present invention, Fig. 2: A graph showing the rise of the rotation of the motor or the dehydrating tank, Fig. 3: An embodiment of the dehydrating control device of the present invention. A diagram showing a specific circuit of [Symbols], 1...Program selection section, 2...State detection section, 3...Operation control section, 4...Load control circuit, 5...Load section, 6...Operation Display drive circuit, 7...operation display section, 8...rotation detection section, 9...
... Signal conversion section, 10 ... Notification section, 11 ... Detection metal piece, 12 ... Proximity switch, 13 ... f-V conversion circuit, 14 ... Voltage comparison circuit, 15 ... Transistor switch, 16 ... Buzzer .
Claims (1)
該回転数が一定の時間内に所定の回転数に到達し
ないときは脱水運転が停止されるよう制御すると
共に、その表示又は報知を行なうことを特徴とす
る洗濯脱水機の脱水制御装置。1 Detects the rotation speed of the spin-drying tank into which the laundry is loaded,
A dehydration control device for a washer dehydrator, characterized in that when the rotational speed does not reach a predetermined rotational speed within a certain period of time, the dehydration operation is controlled to be stopped, and the dehydration operation is displayed or notified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56117392A JPS5819291A (en) | 1981-07-27 | 1981-07-27 | Dehydration controller of washing dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56117392A JPS5819291A (en) | 1981-07-27 | 1981-07-27 | Dehydration controller of washing dehydrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5819291A JPS5819291A (en) | 1983-02-04 |
| JPH0249760B2 true JPH0249760B2 (en) | 1990-10-31 |
Family
ID=14710513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56117392A Granted JPS5819291A (en) | 1981-07-27 | 1981-07-27 | Dehydration controller of washing dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819291A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62129096A (en) * | 1985-11-29 | 1987-06-11 | シャープ株式会社 | Control of full-automatic washing machine |
| JPH0693956B2 (en) * | 1986-02-19 | 1994-11-24 | 松下電器産業株式会社 | Two-tub washing machine |
| JPH03186293A (en) * | 1989-12-15 | 1991-08-14 | Sanyo Electric Co Ltd | Centrifugal dehydrating machine |
| JP3044125B2 (en) * | 1992-04-20 | 2000-05-22 | シャープ株式会社 | Washing machine |
| JP4840724B2 (en) * | 2006-06-08 | 2011-12-21 | 日立工機株式会社 | Centrifuge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53146475A (en) * | 1977-05-27 | 1978-12-20 | Hitachi Ltd | Washing machine with protective device |
| JPS5514065A (en) * | 1978-07-19 | 1980-01-31 | Tokyo Shibaura Electric Co | Washing machine |
| JPS5529310A (en) * | 1978-08-18 | 1980-03-01 | Matsushita Electric Ind Co Ltd | Electric washing machine |
-
1981
- 1981-07-27 JP JP56117392A patent/JPS5819291A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53146475A (en) * | 1977-05-27 | 1978-12-20 | Hitachi Ltd | Washing machine with protective device |
| JPS5514065A (en) * | 1978-07-19 | 1980-01-31 | Tokyo Shibaura Electric Co | Washing machine |
| JPS5529310A (en) * | 1978-08-18 | 1980-03-01 | Matsushita Electric Ind Co Ltd | Electric washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5819291A (en) | 1983-02-04 |
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