JPS6066795A - Washer - Google Patents
WasherInfo
- Publication number
- JPS6066795A JPS6066795A JP17450283A JP17450283A JPS6066795A JP S6066795 A JPS6066795 A JP S6066795A JP 17450283 A JP17450283 A JP 17450283A JP 17450283 A JP17450283 A JP 17450283A JP S6066795 A JPS6066795 A JP S6066795A
- Authority
- JP
- Japan
- Prior art keywords
- water level
- washing
- water
- pressure sensor
- washing 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.)
- Granted
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（イ〉 産業上の利用分野
本発明は家庭で広く使用される洗濯機で、洗濯槽へ規定
水位まで給水して自動的に洗いやすすぎを行なうものに
関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a washing machine widely used in homes that automatically performs washing and rinsing by supplying water to a washing tub up to a specified water level.
（ロ） 従来技術
従来洗濯槽へ規定水位まで給水して自動的に洗いやすす
ぎを行なうものでは、洗濯槽の水位を検知する手段とし
て、洗濯槽の水位に応じて圧縮きれるエアートラップ内
の空気でダイヤフラム式圧力スイッチを制御することに
より行なっていた。(b) Prior art In conventional systems that automatically wash and rinse water by supplying water to a specified water level to a washing tub, the water level in the washing tub is detected by detecting the air in the air trap, which can be compressed according to the water level in the washing tub. This was done by controlling a diaphragm pressure switch.
このようなものでは洗濯槽の水位が規定水位に達して圧
力スイッチが一旦セットすれば、水位が少々下っても圧
力スイッチは元に戻らない（リセットしない）。そのた
め、洗いやすすぎ時、排水弁に異物が入って完全に閉じ
なかったりパ・ンキンの劣化などにより水洩れがあると
、水位は低下するが圧力スイッチがリセットしないので
そのまま洗いやすすぎを続行していた。この結果少量の
水で回転翼を回転して洗いやすすぎを行なうことになり
、洗いやすすぎ性能が悪くなるだけでなく、布傷みが激
しくなり、又回転翼を回転する駆動モータに対する負荷
が大きくなって発熱が大きくなり、製品の故障原因にな
りかねなかった。With such a device, once the water level in the washing tub reaches the specified water level and the pressure switch is set, the pressure switch will not return to its original state (will not be reset) even if the water level drops a little. Therefore, when washing or rinsing, if a foreign object gets into the drain valve and it does not close completely, or if water leaks due to deterioration of the drain valve, the water level will drop, but the pressure switch will not reset, so washing or rinsing will continue. was. As a result, the rotary blades are rotated using a small amount of water for washing and rinsing, which not only deteriorates the washing and rinsing performance, but also causes severe damage to the fabric, and increases the load on the drive motor that rotates the rotary blades. This could result in increased heat generation, which could lead to product failure.
（ハ）発明の目的
本発明は、洗いやすすぎ時、洗濯槽内の水位が規定水位
よりある位置まで低下すると、回転翼を停止すると共に
自動的に水を規定水位まで給水して、布傷みを抑え且つ
駆動モータへの負荷を軽減できる洗濯機を得ることを目
的とする。(c) Purpose of the Invention The present invention provides a method for preventing fabric damage by stopping the rotor and automatically supplying water to the specified water level when the water level in the washing tub drops to a certain level below the specified water level during washing or rinsing. An object of the present invention is to provide a washing machine that can suppress the load on the drive motor and reduce the load on the drive motor.
（ニ） 発明の構成
本発明は、洗濯槽の水位を検知する手段として、洗濯槽
の水位に応じて圧縮されるエアートラップ内の空気圧を
検知して水位に応した信号を発生する半導体圧力センサ
ーを用い、この圧力センサーからの信号を受け、洗いや
すすぎ中に洗濯槽の水位が規定水位よりある位置まで低
下した際、回転翼を停止せしめると共に給水弁を開いて
洗濯槽へ前記規定水位まで給水する制御手段を設けたも
のである。(D) Structure of the Invention The present invention provides a semiconductor pressure sensor that detects the air pressure in an air trap that is compressed according to the water level of the washing tub and generates a signal corresponding to the water level, as means for detecting the water level of the washing tub. receives a signal from this pressure sensor, and when the water level in the washing tub drops to a certain level below the specified water level during washing or rinsing, the rotor is stopped and the water supply valve is opened to allow the washing tub to reach the specified water level. It is equipped with a control means for supplying water.
（ホ）実施例
第１図は洗濯機の全体構造を示し、（１）は外箱、（２
）は外槽で図示しない吊棒によって外箱（１）内に弾性
的に吊下きれている。外槽（２）内には周壁に多数の脱
水孔（４）を有する脱水兼洗濯槽（５〉が内股きれてい
る。洗濯槽（５〉の口縁にはバランスリング（６）が装
着きれ、又底部中央には回転翼（７）が配設されている
。（８）は駆動モータで、小プーリ〈９）、ベルト（１
０）、大プーリ（１１）を（７）を固着した翼軸（１３
）を回転せしめる。（１４）は脱水軸（１２）にブレー
キをかけるブレーキ装置や脱水軸（１２）への回転力の
伝達を制御するクラッチ装置を内蔵した軸受ケースであ
る。外槽（２）の底部には排水口（１５）が設けられ、
この排水口（１５）には排水電磁弁〈１６〉を有する排
水ホース（１７）が接続されている。(E) Embodiment Figure 1 shows the overall structure of a washing machine, where (1) is an outer box, (2)
) is an outer tank that is elastically suspended within the outer box (1) by a hanging rod (not shown). Inside the outer tank (2), there is a dewatering/washing tub (5) with a large number of dehydrating holes (4) on the peripheral wall.A balance ring (6) is attached to the mouth of the washing tub (5). In addition, a rotating blade (7) is arranged in the center of the bottom. (8) is a drive motor, which drives a small pulley (9) and a belt (1).
0), the wing shaft (13) to which the large pulley (11) and (7) are fixed.
) is rotated. (14) is a bearing case incorporating a brake device that brakes the dehydration shaft (12) and a clutch device that controls the transmission of rotational force to the dehydration shaft (12). A drain port (15) is provided at the bottom of the outer tank (2),
A drain hose (17) having a drain electromagnetic valve <16> is connected to this drain port (15).
外槽（２）の側壁下部には洗濯槽（５〉内の水位に応じ
て中の空気が圧縮きれるエアートラップ（１８）が設け
られ、このエアートラップ（１８）内はＪｌ）ホース（
１９）を介して半導体圧力センサー（２０）の圧力導入
管（２１）に連通されている。第２図に圧力センサー（
２０）の構造を示す。ヘッダ（２２）にダイヤフラム部
となるシリコンペレット（２３）が接着され、外側には
圧力導入管（２１）を有するキャップ（２４）が溶着さ
れている。シリコンペレット（２３）のダイヤフラム部
には４本のピエゾ拡散抵抗（２５）〜（２８）が設置き
れている。圧力導入管（２１）よりエアートラップ（１
８）内の圧力が導入されると、ダイヤフラム部３−
が変形し、ピエゾ拡散抵抗（２５〉〜（２８）の抵抗値
が変化する。ピエゾ拡散抵抗（２５）〜（２８）を第３
図の如くブリッジ結合することにより、その抵抗値の変
化を感度良く電圧変化に変えて出力端子（２９）（２９
゛）より取り出す。第３図で（３０）は定電流回路でブ
リッジに１．５〔ｍＡ）の定電流を供給する。外付抵抗
（３１）（３２）（３３）は圧力センサーの温度補償及
び感度、零点の調整用である。圧力センサーの出力電圧
は、第４図の如く洗濯槽（５）の水位に比例する。第２
図で（３４）は接着剤、（３５）は絶縁材、（３６）は
導線、〈３７ンは６零のリード端子で第３１５０のポイ
ント（Ｐ）に相当する。An air trap (18) is provided at the bottom of the side wall of the outer tank (2), and the air inside the washing tank (5) can be compressed depending on the water level in the washing tank (5).
19) to a pressure introduction pipe (21) of a semiconductor pressure sensor (20). Figure 2 shows the pressure sensor (
20) is shown. A silicon pellet (23) serving as a diaphragm portion is adhered to the header (22), and a cap (24) having a pressure introduction pipe (21) is welded to the outside. Four piezo diffused resistors (25) to (28) are installed in the diaphragm portion of the silicon pellet (23). The air trap (1) is connected to the pressure introduction pipe (21).
8) When the pressure inside is introduced, the diaphragm part 3- deforms and the resistance values of the piezo diffused resistors (25> to (28) change.The piezo diffused resistors (25) to (28) are
By bridge-coupling as shown in the figure, changes in the resistance value are converted into voltage changes with high sensitivity to the output terminals (29) (29).
゛). In FIG. 3, (30) is a constant current circuit that supplies a constant current of 1.5 mA to the bridge. External resistors (31, 32, and 33) are used for temperature compensation, sensitivity, and zero point adjustment of the pressure sensor. The output voltage of the pressure sensor is proportional to the water level of the washing tub (5) as shown in FIG. Second
In the figure, (34) is an adhesive, (35) is an insulating material, (36) is a conductive wire, and (37) is a 6-zero lead terminal, which corresponds to the 3150th point (P).
第５図は制御装置のブロック回路図を示し、本実施例の
洗濯機の制御はマイクロコンピュータ（３８）により行
なっている。マイクロコンピュータ（３８）には、（３
９）で示すスタート釦や洗濯コース設定釦からの情報や
前記圧力センサー（２０）からの情報が入力され、この
情報を判定して駆動モータ（８）や排水電磁弁（１６）
や給水電磁弁（４０）などを制御する。図で（４１）〜
（４５）はインターフェイス、４−
（４６）は駆動モ〜り（８）や給水を磁弁（４０＞以外
の排水弁り１６）などの負荷部を表わす。FIG. 5 shows a block circuit diagram of the control device, and the washing machine of this embodiment is controlled by a microcomputer (38). The microcomputer (38) has (3
Information from the start button and washing course setting button shown in 9) and information from the pressure sensor (20) are input, and this information is determined to drive the drive motor (8) and drain solenoid valve (16).
and the water supply solenoid valve (40). In the figure (41)~
(45) represents an interface, and 4-(46) represents a load unit such as a drive motor (8) and a water supply magnetic valve (drain valve 16 other than 40>).
次に動作を第６図のフローチャートに基づいて説明する
。スタート釦操作により運転が開始される。先ず圧力セ
ンサー（２０）の出力電圧が第４図で（ａ）に達するま
で給水電磁弁（４０）を開弁して洗濯槽（５）へ給水を
行なう。洗濯槽〈５）へ規定水位（Ｈ）まで給水すると
、圧力センサー（２０）の出力が（ａ）になり、給水電
磁弁（４０）を閉じる０次いで洗い工程時間Ｔが設定さ
れ、駆動モータ（８）が通電されて回転翼（７）を回転
し洗いを開始する。洗い中に洗濯槽（５）内の水位が（
ｈ）まで低下して圧力センサー（２０）の出力が（Ｃ）
まで下がると、マイクロコンピュータ（３８）は、駆動
モータ（８）への通電を断つと共に前記時間Ｔの計時動
作を停止せしめる。同時に給水電磁弁（４０）を再度励
磁して開弁し、圧力センサー（２０）の出力が（ａ）に
なるまで即ち規定水位（Ｈ）に戻るまで給水する。規定
水位に戻れば、給水を停止すると共に駆動モータ（８）
へ通電して洗いを再開し、時間Ｔの計時を再開する。時
間Ｔが経通すれば、駆動モータ（８）を停止して次工程
（排水工程）へ移る。Next, the operation will be explained based on the flowchart of FIG. Operation is started by operating the start button. First, the water supply solenoid valve (40) is opened to supply water to the washing tub (5) until the output voltage of the pressure sensor (20) reaches (a) in FIG. When water is supplied to the washing tub (5) up to the specified water level (H), the output of the pressure sensor (20) becomes (a), the water supply solenoid valve (40) is closed (0), then the washing process time T is set, and the drive motor ( 8) is energized to rotate the rotary blade (7) and start washing. During washing, the water level in the washing tub (5) becomes (
h) and the output of the pressure sensor (20) becomes (C).
When the time T reaches 1, the microcomputer (38) cuts off the power to the drive motor (8) and stops the time measurement operation of the time T. At the same time, the water supply solenoid valve (40) is reenergized and opened, and water is supplied until the output of the pressure sensor (20) reaches (a), that is, until it returns to the specified water level (H). When the water level returns to the specified level, the water supply is stopped and the drive motor (8)
energizes to restart washing and restart time measurement of time T. Once the time T has elapsed, the drive motor (8) is stopped and the process moves to the next step (drainage step).
（へ） 発明の効果
本発明によると、洗いやすすぎ中に洗濯槽内の水位が規
定水位（Ｈ）からある水位（ｈ）まで低下すると、自動
的に回転翼を一旦停止すると共に規定水位に戻るまで給
水するようにしたので、少量の水量で洗いやすすぎが行
なわれて布傷みが激しくなるというようなことはなく、
又駆動モータ（８）に過大な負荷が長時間かかって発熱
することもなく、更に洗いやすすぎ性能の低下を防止で
きる。(f) Effects of the Invention According to the present invention, when the water level in the washing tub drops from the specified water level (H) to a certain water level (h) during washing or rinsing, the rotor blades are automatically stopped once and the water level returns to the specified water level. Since water is supplied until the cloth returns, washing and rinsing are performed with a small amount of water, and there is no possibility of severe damage to the cloth.
Further, the drive motor (8) is not subjected to excessive load for a long period of time and generates heat, and furthermore, it is possible to prevent deterioration in washing and rinsing performance.
図面は本発明を示し、第１図は洗濯機の縦断面図、第２
図は圧力センサーの構造を示す断面図、第３図は圧力セ
ンサーと定電流回路の回路図、第４図は水位と圧力セン
サーの出力電圧の関係図、第５図は洗濯機のブロック回
路図、第６図は洗いやすすぎの工程の動作を示すフロー
チャートである。
（５）・・・洗濯槽、（１８）・・・エアートラップ、
（２０）７−
駆動モータ、（４０）・・・給水電磁弁（給水弁〉、（
３８）・・マイクロコンピュータ（制御手段）。
８−
特開昭６Ｏ−６６７９５（４）
第４図
第５図The drawings illustrate the present invention, and FIG. 1 is a longitudinal sectional view of a washing machine, and FIG.
The figure is a cross-sectional view showing the structure of the pressure sensor, Figure 3 is a circuit diagram of the pressure sensor and constant current circuit, Figure 4 is a relationship between the water level and the output voltage of the pressure sensor, and Figure 5 is a block circuit diagram of the washing machine. , FIG. 6 is a flowchart showing the operation of the washing and rinsing steps. (5)...Washing tub, (18)...Air trap,
(20) 7- Drive motor, (40)... Water supply solenoid valve (water supply valve), (
38)...Microcomputer (control means). 8- Unexamined Japanese Patent Publication No. 6O-66795 (4) Figure 4 Figure 5
Claims (1)
空気圧を検知して水位に応した信号を発生する半導体圧
力センサーと、該圧力センサーからの信号を受け、洗い
やすすぎ中に洗濯槽の水位が規定水位よりある位置まで
低下した際回転翼を停止せしめると共に給水弁を開いて
洗濯槽へ前記規定水位まで給水する制御手段を有する洗
濯機。■ A semiconductor pressure sensor that detects the air pressure in the air trap that is compressed according to the water level of the washing machine and generates a signal corresponding to the water level. A washing machine having a control means for stopping a rotor and opening a water supply valve to supply water to a washing tub up to the specified water level when the water level drops to a certain level below a specified water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17450283A JPS6066795A (en) | 1983-09-20 | 1983-09-20 | Washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17450283A JPS6066795A (en) | 1983-09-20 | 1983-09-20 | Washer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6066795A true JPS6066795A (en) | 1985-04-16 |
| JPS6311038B2 JPS6311038B2 (en) | 1988-03-10 |
Family
ID=15979617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17450283A Granted JPS6066795A (en) | 1983-09-20 | 1983-09-20 | Washer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066795A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62299296A (en) * | 1986-06-20 | 1987-12-26 | 松下電器産業株式会社 | Controller for washing machine |
| JPH0379950A (en) * | 1990-06-08 | 1991-04-04 | Noritz Corp | Automatic bath device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146767A (en) * | 1974-10-17 | 1976-04-21 | Tokyo Shibaura Electric Co | SUIISEIGYO SOCHI |
| JPS5652099A (en) * | 1979-10-04 | 1981-05-09 | Sanyo Electric Co | Washing machine |
-
1983
- 1983-09-20 JP JP17450283A patent/JPS6066795A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146767A (en) * | 1974-10-17 | 1976-04-21 | Tokyo Shibaura Electric Co | SUIISEIGYO SOCHI |
| JPS5652099A (en) * | 1979-10-04 | 1981-05-09 | Sanyo Electric Co | Washing machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62299296A (en) * | 1986-06-20 | 1987-12-26 | 松下電器産業株式会社 | Controller for washing machine |
| JPH0379950A (en) * | 1990-06-08 | 1991-04-04 | Noritz Corp | Automatic bath device |
| JPH0457940B2 (en) * | 1990-06-08 | 1992-09-16 | Noritsu Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6311038B2 (en) | 1988-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR890004730B1 (en) | Controlling device of washing machine | |
| JP2778840B2 (en) | Washing machine | |
| JPS6066795A (en) | Washer | |
| JPH0561959B2 (en) | ||
| JP4457857B2 (en) | Washing and drying machine | |
| JP3612904B2 (en) | Fully automatic washing machine | |
| JPH0561958B2 (en) | ||
| JPS61222481A (en) | Washing machine | |
| JP2574305B2 (en) | Washing machine load detection device | |
| JPH09122378A (en) | Washing and dewatering machine | |
| JPS6194696A (en) | Dehydration apparatus | |
| JPH04367698A (en) | Washing macnine | |
| JPS60242882A (en) | Controller of washing machine | |
| JP3143364B2 (en) | Washing machine | |
| JPS5921639B2 (en) | How to control a washing machine | |
| JPS6072596A (en) | Water level controller of dehydration washer | |
| JPS60242896A (en) | Controller of dehydrator | |
| JP2859119B2 (en) | How to operate a washing machine | |
| JPS6066788A (en) | Control of dehydration washer | |
| JP2947655B2 (en) | Washing machine abnormal vibration detection device | |
| JPH0536079B2 (en) | ||
| JP2698425B2 (en) | Washing machine operation control method | |
| JPS59211489A (en) | Operation of full automatic washer | |
| JPS61238291A (en) | Washing machine | |
| JPH0544315B2 (en) |