JPH0420394A - Washing machine - Google Patents
Washing machineInfo
- Publication number
- JPH0420394A JPH0420394A JP2107312A JP10731290A JPH0420394A JP H0420394 A JPH0420394 A JP H0420394A JP 2107312 A JP2107312 A JP 2107312A JP 10731290 A JP10731290 A JP 10731290A JP H0420394 A JPH0420394 A JP H0420394A
- Authority
- JP
- Japan
- Prior art keywords
- washing
- water
- tub
- water level
- dehydration
- 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.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 230000018044 dehydration Effects 0.000 abstract description 38
- 238000006297 dehydration reaction Methods 0.000 abstract description 38
- 239000003599 detergent Substances 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 20
- 238000001514 detection method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- -1 dirt Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は脱水兼用洗濯槽の貯留水位を検出する構造を改
良した洗濯機に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a washing machine with an improved structure for detecting the level of water stored in a washing tub that also serves as a spin-drying machine.
（従来の技術）
従来より、いわゆる脱水兼用洗濯機においては、脱水兼
用洗濯槽が、脱水口として、一般に周壁のはゾ全域に小
孔を多数穿設して具えており、洗濯時にはその各小孔を
通じて外桶にまで水を貯留するようになっているため、
多量の水を要するという問題点を有していた。(Prior Art) Conventionally, in so-called dehydrating and dehydrating washing machines, the dehydrating and dehydrating washing tub is generally provided with a large number of small holes as dehydration ports throughout the entire circumferential wall, and during washing, each of the small holes is used as a dehydrating port. Because water is stored in the outer tub through the hole,
This had the problem of requiring a large amount of water.
これに対して、脱水兼用洗濯槽を上端部にのみ脱水口を
有するものとして、洗濯時に該脱水兼用洗濯槽にのみ水
を貯留するようにし、節水を図るようにした洗濯機が供
されている。On the other hand, there is a washing machine that saves water by storing water only in the spin-drying washing tub by having a spin-drying port only at the upper end of the washing tub. .
ところが、この節水タイプの洗濯機においては、貯留水
位の検出を、脱水時に回転する脱水兼用洗濯槽について
行なうようにしなければならないため、それを回転しな
い外桶について行なえば良かった従来の洗濯機のような
圧力スイッチ方式の水位検出構造を採ることは極めて困
難となり、それに代わる水位検出構造が必要となった。However, in this water-saving type washing machine, the stored water level must be detected in the spinning/spinning washing tub that rotates during spin-drying, which is different from the case of conventional washing machines where detection could be done in the outer tub that does not rotate. It has become extremely difficult to adopt such a pressure switch type water level detection structure, and an alternative water level detection structure has become necessary.
その一つとしては、例えば実公昭５６−２６７０９号公
報に示されるように、脱水兼用洗濯槽内に供給される水
を、その水位の上昇に伴い脱水兼用洗濯槽の規定水位部
分に設けた噴水孔から噴出させて電極に触れさせ、それ
によって、脱水兼用洗濯槽の貯留水位が規定水位部分に
達したことを検出するものが考えられている。For example, as shown in Japanese Utility Model Publication No. 56-26709, a fountain is installed at a specified water level of the washing tub for dewatering and dewatering as the water level rises. A method has been proposed in which water is ejected from a hole and brought into contact with an electrode, thereby detecting that the water level stored in a laundry tub that also serves as a spin dryer has reached a specified water level.
しかしながら、このものにおいては、水位検出のために
噴出する水が余分に必要で、充分な節水効果が得られな
いという問題点があり、又、単位時間当りの給水量が少
ない時には、噴水孔から水が勢い良く噴出せずに電極ま
で届かず、確実な水位検出ができないという問題点があ
って、更に、脱水兼用洗濯槽の噴水孔からは洗濯中にも
水が流出して槽内の水位が低下し、洗濯性能が悪くなる
という問題点があった。However, this method has the problem that extra water is required to be ejected to detect the water level, and a sufficient water saving effect cannot be obtained.Also, when the amount of water supplied per unit time is small, it is necessary to eject water from the fountain hole. There is a problem that the water does not spray out forcefully and does not reach the electrodes, making it impossible to reliably detect the water level.Additionally, water flows out from the spout hole of the washing tub that also serves as a spin dryer during washing, causing the water level inside the tub to rise. There was a problem that the washing performance deteriorated.
一方、実公昭５６−５３８３０号公報に示されるように
、脱水兼用洗濯槽の内面部に電極片を設け、脱水兼用洗
濯槽内に供給した水の水面がその電極片に達して触れる
ことにより、水位を検知するようにしたものも考えられ
ている。On the other hand, as shown in Japanese Utility Model Publication No. 56-53830, an electrode piece is provided on the inner surface of the washing tub for both dehydration and dehydration, and when the water surface of the water supplied into the washing tub for dehydration reaches and touches the electrode piece, A device that can detect the water level is also being considered.
（発明が解決しようとする課題）
上述のものによれば、脱水兼用洗濯槽から水を噴出させ
ることがないので、充分な節水効果が得られ、又、単位
時間当りの給水量が少ない時にも確実な水位検出ができ
、更に、洗濯中での水の流出がなくて洗濯性能を良好に
得ることができる。(Problems to be Solved by the Invention) According to the above-mentioned method, water is not spouted out from the washing tub that also serves as a dehydrator, so a sufficient water saving effect can be obtained, and even when the amount of water supplied per unit time is small. The water level can be detected reliably, and furthermore, water does not flow out during washing, and good washing performance can be obtained.
しかしながら、電極片には脱水兼用洗濯槽内での洗濯時
やすすぎ時に水に含まれる洗剤やごみ等が付着するもの
で、この付着する洗剤やごみ等のために電極片の汚れが
進んで、水位検出動作に狂いを生じやすくなるという問
題点を有していた。However, detergent and dirt contained in water adhere to the electrode pieces during washing and rinsing in the dehydrating/washing tub, and the electrode pieces become dirty due to this adhering detergent and dirt. This has the problem that the water level detection operation is likely to be distorted.
本発明は上述の事情に鑑みてなされたものであり、従っ
てその目的は、節水タイプの脱水兼用洗濯槽の貯留水位
を検出するについて、それを、その脱水兼用洗濯槽から
水を噴出させないで行ない得るだけでなく、狂いのない
より確実な動作で行なうことのできる優れた洗濯機を提
供するにある。The present invention has been made in view of the above-mentioned circumstances, and therefore, its purpose is to detect the level of water stored in a water-saving type laundry tub that also serves as a spin-dryer without spouting out water from the tub. The purpose of the present invention is to provide an excellent washing machine that not only provides a good washing machine but also a more reliable operation without any errors.
［発明の構成］
（課題を解決するための手段）
本発明の洗濯機は、脱水口を上端部にのみ有する脱水兼
用洗濯槽の設定水位位置に電極片を設け、この電極片に
より上記脱水兼用洗濯槽の貯留水位を検出するようにし
たものであって、その電極片を、上記脱水兼用洗濯槽の
外面部に設けて成るところに特徴を有するものである。[Structure of the Invention] (Means for Solving the Problems) The washing machine of the present invention is provided with an electrode piece at a set water level position of a washing tub that has a dewatering port only at the upper end, and which performs the above-mentioned dewatering and drying process. This device is designed to detect the water level stored in the washing tub, and is characterized in that electrode pieces are provided on the outer surface of the washing tub that also serves as a spin-drying machine.
（作用）
上記手段によれば、脱水兼用洗濯槽内に供給された水の
水面が、電極片部分に達することにより、槽壁を誘電体
として、槽内の水と槽外の電極とによりコンデンサが形
成され、信号を伝送できるから、その伝送される信号に
より水位の検知ができる。又、槽外に位置する電極片に
は、槽内での洗濯時やすすぎ時に水に含まれる洗剤やご
み等が付着することはなく、そのほか、その槽外でごみ
等が付着することがあっても、それは脱水時における脱
水兼用洗濯槽の回転による遠心力で外方に飛ばし除去す
ることができる。(Function) According to the above means, the water surface of the water supplied in the dehydrating/washing tub reaches the electrode piece portion, and the water inside the tub and the electrode outside the tub form a capacitor, using the tub wall as a dielectric. is formed and can transmit a signal, so the water level can be detected by the transmitted signal. In addition, the electrode pieces located outside the tank will not be contaminated with detergent or dirt contained in the water during washing or rinsing in the tank, and there is no possibility that dirt or other substances may adhere to the electrode pieces outside the tank. However, it can be removed by being blown outward by the centrifugal force caused by the rotation of the washing tub that also serves as a spin dryer during spin drying.
（実施例）
以下、本発明の一実施例につき、図面を参照して説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
まず第２図に示す洗濯機全体の外箱１には、内部に、外
桶２を、一部のみ図示した弾性吊持機構３により支持し
て配設している。外桶２の外下刃部には、モータ４を主
とする駆動機構５並びに排水ホース６等を配設しており
、他方、外桶２の内部には、脱水口を水平−列状の小孔
７にて上端部にのみ有する脱水兼用洗濯槽８を配設して
いて、これを、上記駆動機構５から外桶２内に突出した
脱水軸９に取付け、もって該脱水兼用洗濯槽８を脱水時
に脱水軸９により回転させ、上記小孔７から脱水をする
ようにしている。なお、脱水兼用洗濯槽８内には、下部
に、撹拌体１０を配設していて、これを上記脱水軸９か
ら脱水兼用洗濯槽８内に突出した洗濯軸１１に取付け、
もって該撹拌体１０を洗濯時に洗濯軸１１により回転さ
せ、洗濯をするようにしている。First, an outer box 1 of the entire washing machine shown in FIG. 2 has an outer tub 2 supported therein by an elastic suspension mechanism 3, only a portion of which is shown. A drive mechanism 5 mainly including a motor 4, a drainage hose 6, etc. are arranged on the outer lower blade part of the outer tub 2. On the other hand, inside the outer tub 2, dewatering ports are arranged in horizontal rows. A washing tub 8 for dehydration and dehydration is provided only at the upper end of the small hole 7, and this is attached to a dehydration shaft 9 protruding from the drive mechanism 5 into the outer tub 2, whereby the washing tub 8 for dehydration and dehydration is installed. is rotated by a dehydrating shaft 9 during dehydration, and water is dehydrated through the small hole 7. In addition, a stirring body 10 is disposed at the lower part of the washing tub 8 for both dehydration and dehydration, and this is attached to a washing shaft 11 that protrudes from the dehydration shaft 9 into the washing tub 8 for dehydration.
Thus, the agitator 10 is rotated by the washing shaft 11 during washing, thereby washing the clothes.
上記脱水兼用洗濯槽８には、第１図に示すように外面部
に、この場合、３個の電極片１２ａ、１２ｂ、１２ｃを
、高さを「低」、「中」、「高」に異ならせて配設して
おり、その全部を、第３図及び第４図にも示すように、
脱水兼用洗濯槽８にねじ１３，１４によって取着したカ
バー１５により覆い、且つこのカバ−１５内部に形成し
たピン１６ａ、１６ｂ、１６ｃにより押え付けている。In this case, three electrode pieces 12a, 12b, and 12c are arranged on the outer surface of the dehydrating/washing tub 8, as shown in FIG. They are arranged differently, all of which are shown in Figures 3 and 4.
It is covered with a cover 15 attached to the washing tub 8 with screws 13 and 14, and is held down with pins 16a, 16b and 16c formed inside the cover 15.
又、脱水兼用洗濯槽８の上端部には、バランサとして例
えば液体１７を封入したバランスリング１８を設けてお
り、このバランスリング１８の上面部に、第５図に示す
ように、上記電極片１２ａ。Further, a balance ring 18 in which a liquid 17 is sealed, for example, is provided as a balancer at the upper end of the laundry tub 8, and as shown in FIG. .
１．２ｂ、１２ｃと同数の第１の電極板１９ａ、１９ｂ
、１９ｃを脱水兼用洗濯槽８の回転方向に均等に位置を
異ならせて配設し、これらと電極片１２ａ、１２ｂ、、
１．２ｃとをそれぞれリード線２０ａ、２０ｂ、２０ｃ
により電気接続している。そして、上記脱水兼用洗濯槽
８のバランスリング１８上面部と対向する非回転部材、
この場合、前記外桶２の上端部に取付けた桶カバー２１
の下面部には、更に第１の電極板１９ａ、１９ｂ、１９
ｃと同数の第２の電極板２２ａ、２２ｂ、２２ｃを、第
１の電極板１９ ａ、 １９ ｂ、 １９ ｃとそ
れぞれ対をなす位置関係となるように、脱水兼用洗濯槽
８の回転方向に均等に位置を異ならせて配設している。1.2b, 12c and the same number of first electrode plates 19a, 19b
, 19c are arranged at evenly different positions in the rotational direction of the washing tub 8, and these electrode pieces 12a, 12b, .
1.2c and lead wires 20a, 20b, 20c, respectively.
electrical connection. and a non-rotating member facing the upper surface portion of the balance ring 18 of the washing tub 8 for both dehydration and washing;
In this case, the tub cover 21 attached to the upper end of the outer tub 2
Furthermore, first electrode plates 19a, 19b, 19
The same number of second electrode plates 22a, 22b, 22c as c are arranged in the rotational direction of the dehydrating/washing tub 8 so that they form a pair position relationship with the first electrode plates 19a, 19b, 19c, respectively. They are arranged evenly in different positions.
なお、上記第２の電極板２２ａ、２２ｂ。Note that the second electrode plates 22a and 22b.
２２ｃは制御装置２３に接続しており、又、前記駆動機
構５には例えば１０ ［ｋＨｚｌの正弦波信号を発振す
る発振器２４を接続している。22c is connected to a control device 23, and an oscillator 24 that oscillates a sine wave signal of, for example, 10 kHz is connected to the drive mechanism 5.
加えて、上記脱水兼用洗濯槽８のバランスリング１８上
面部には、第６図に示すように、マグネット２５を押え
部材２６により押えて固着しており、これに対し、桶カ
バー２１の上面部には、リードスイッチ２７を固着して
いて、これらにより、脱水兼用洗濯槽８の回転位置を、
上記第１の電極板１９ ａ、 １９ ｂ、 １９
ｃと第２の電極板２２ａ。In addition, as shown in FIG. 6, a magnet 25 is held and fixed to the upper surface of the balance ring 18 of the laundry tub 8 for both spin-drying and washing tub 8, while a magnet 25 is held and fixed to the upper surface of the tub cover 21 by a pressing member 26. A reed switch 27 is fixed to the reed switch 27, which controls the rotational position of the washing tub 8 that also serves as a spin dryer.
The first electrode plates 19a, 19b, 19
c and the second electrode plate 22a.
２２ｂ、２２Ｃとがそれぞれに対向する位置で検出する
ようにしいる。22b and 22C are arranged to be detected at positions facing each other.
しかして、前記制御装置２３は例えばマイクロコンピュ
ータにより構成したものであり、第７図に示すように、
上記リードスイッチ２７から脱水兼用洗濯槽８の回転位
置についての位置検出信号が入力されると共に、前記第
２の電極板２２ａ。The control device 23 is composed of, for example, a microcomputer, and as shown in FIG.
A position detection signal regarding the rotational position of the washing tub 8 for dehydration and washing is inputted from the reed switch 27, and the second electrode plate 22a.
２２ｂ、２２ｃからアナログスイッチ２８ａ、２８ｂ、
２８ｃより成る信号受付切換回路、フィルタ２９、アン
プ３０、コンパレータ３１を順に介して水位検出信号が
入力され、それらの入力並びにあらかじめ記憶した制御
プログラムに基づいて前記駆動機構５のモータ４並びに
脱水兼用洗濯槽８内に給水すべく設けた給水弁３２等を
初めとした負荷の通電状態を駆動回路３３．３４等を介
して制御するようにしている。22b, 22c to analog switches 28a, 28b,
A water level detection signal is inputted in order through a signal reception switching circuit 28c, a filter 29, an amplifier 30, and a comparator 31, and the motor 4 of the drive mechanism 5 and the dehydration/washing are controlled based on these inputs and a control program stored in advance. The energization state of loads including the water supply valve 32 provided to supply water into the tank 8 is controlled via drive circuits 33, 34 and the like.
次に上記構成のものの給水時における作用を述べろ。Next, describe the function of the above structure during water supply.
この給水時には、まず駆動機構５のモータ４が、制御装
置２３により、例えば電源波形の１波形オン、５波形オ
フの繰返しで通電されることにより、極く低速で回転さ
れる。そして、その低速回転により、脱水兼用洗濯槽８
がマグネット２５をり−ドスイッチ２７に対向させる回
転位置（第１の電極板１９ａ、１９ｂ、、１９ｃと第２
の電極板２２ａ、２２ｂ、２２ｃとがそれぞれに対向す
る位置）に至ると、リードスイッチ２７がマグネット２
５によりオンされることによる位置検出信号が制御装置
２３に入力されることにより、上記モータ４が断電され
て脱水兼用洗濯槽８の回転を止め、位置決めをする。At the time of water supply, the motor 4 of the drive mechanism 5 is rotated at a very low speed by being energized by the control device 23, for example, by repeating one power waveform on and five waveforms off. And, due to its low speed rotation,
is the rotational position where the magnet 25 faces the gate switch 27 (the first electrode plates 19a, 19b, 19c and the second
When the reed switch 27 reaches the position where the electrode plates 22a, 22b, and 22c face each other, the magnet 2
5 is turned on and a position detection signal is input to the control device 23, the motor 4 is cut off to stop the rotation of the washing tub 8 and position it.
次いで、この状態で、給水弁３２が通電されて開放され
、脱水兼用洗濯槽８内への給水が開始される。よって、
脱水兼用洗濯槽８内では次第に水位が上昇するものであ
り、その水に、前述の１０［ｋＨｚｌの正弦波信号を発
振する発振器２４が、駆動機構５の洗濯軸１１を介して
導通される。従って、この状態で、脱水兼用洗濯槽８内
の水位が最下段の電極片１２ａ部分に達するようになる
と、槽壁を誘電体として、電極片１２ａと脱水兼用洗濯
槽８内の水との間でコンデンサが形成され、該コンデン
サを通じて電極片１２ａに発振器２４の出力信号が伝わ
るようになる。この電極片１２ａに伝わった発振器２４
の出力信号は、その電極片１２ａに電気接続された第１
の電極板１９ａに伝わり、更に該第１の電極板１９ａか
らこれに対向して静電結合された第２の電極板２２ａに
伝わる。Next, in this state, the water supply valve 32 is energized and opened, and water supply to the washing tub 8 for both spin-drying and washing is started. Therefore,
The water level in the spin-drying/washing tub 8 gradually rises, and the oscillator 24 that oscillates the aforementioned 10 kHz sine wave signal is connected to the water via the washing shaft 11 of the drive mechanism 5. Therefore, in this state, when the water level in the washing tub 8 for spin-drying reaches the lowest electrode piece 12a, the tank wall is used as a dielectric between the electrode piece 12a and the water in the washing tub 8 for spin-drying. A capacitor is formed, and the output signal of the oscillator 24 is transmitted to the electrode piece 12a through the capacitor. The oscillator 24 transmitted to this electrode piece 12a
The output signal of the first electrode electrically connected to the electrode piece 12a is
It is transmitted from the first electrode plate 19a to the second electrode plate 22a which is electrostatically coupled to the first electrode plate 19a.
そこで、今、脱水兼用洗濯槽８内の水位を上記電極片１
２ａが位置した「低」の位置に止めるべく、信号受付切
換回路のアナログスイッチ２８ａが有効にされていると
、上記第２の電極板２２ａに伝わった信号は、次にアナ
ログスイッチ２８ａからフィルタ２９を通り、ノイズが
取除かれて、アンプ３０により増幅され、電源電圧を抵
抗３５．３６で分圧した電圧値以上となって、コンパレ
ータ３１を経、制御装置２３に水位検出信号として入力
される。かくして、給水による脱水兼用洗濯槽８内の貯
留水位が「低」の位置の電極片１２ａ部分に達したこと
を検知できる。Therefore, the water level in the washing tub 8 that also serves as a dehydrator is now adjusted to the electrode piece 1.
When the analog switch 28a of the signal reception switching circuit is enabled in order to keep the switch 2a in the "low" position, the signal transmitted to the second electrode plate 22a is then passed from the analog switch 28a to the filter 29. , noise is removed, the signal is amplified by the amplifier 30, and the voltage becomes equal to or higher than the voltage value obtained by dividing the power supply voltage by the resistors 35 and 36, and is inputted to the control device 23 as a water level detection signal via the comparator 31. . In this way, it is possible to detect that the water level stored in the washing tub 8 for dehydration and dehydration due to water supply has reached the "low" position of the electrode piece 12a.
これに対して、給水による脱水兼用洗濯槽８内の貯留水
位を上述の電極片１２ａが位置した「低」の位置に代わ
り、電極片１２ｂが位置した「中」の位置に１１−める
べく、信号受付切換回路のアナログスイッチ２８ｂが有
効にされていたとすると、制御装置２３には、脱水兼用
洗濯槽８内の貯留水位が電極片１２ ｂ部分に達して、
該電極片１２ｂと脱水兼用洗濯槽８内の水との間で形成
されるコンデンサを通じ、電極片１２ａに発振器２４の
出力信号が伝わるようになったところで、後は上述同様
に第１の電極板１９ｂ、第２の電極板２２ｂ。On the other hand, in order to set the water level stored in the washing tub 8 for dehydration and dehydration due to water supply to the "medium" position where the electrode piece 12b is located instead of the "low" position where the electrode piece 12a is located, 11- , if the analog switch 28b of the signal acceptance switching circuit is enabled, the control device 23 will know that the level of water stored in the washing tub 8 has reached the electrode piece 12b.
Once the output signal of the oscillator 24 is transmitted to the electrode piece 12a through the capacitor formed between the electrode piece 12b and the water in the dehydrating/washing tub 8, the rest is to connect the first electrode plate as described above. 19b, second electrode plate 22b.
アナログスイッチ２８ｂ、フィルタ２９．アンプ３０、
コンパレータ３１を経て水位検出信号が入力されるもの
であり、かくして、脱水兼用洗濯槽８内の貯留水位が「
中」の位置の電極片１２ｂ部分に達したことを検知でき
る。Analog switch 28b, filter 29. amplifier 30,
A water level detection signal is inputted through the comparator 31, and thus the water level stored in the washing tub 8 for spin-drying is determined as "
It is possible to detect that the electrode piece 12b has reached the "middle" position.
又、給水による脱水兼用洗濯槽８内の貯留水位を上述の
電極片１２ｂが位置した「中」の位置とも代わり、更に
電極片１２ｃが位置した「高」の位置に止めるべく、信
号受付切換回路のアナログスイッチ２８ｃが有効にされ
ていたとすると、制御装置２３には、脱水兼用洗濯槽８
内の貯留水位が電極片１２ｃ部分に達して、該電極片１
２ｂと脱水兼用洗濯槽８内の水との間で形成されるコン
デンサを通じ、電極片１２ａに発振器２４の出力信号が
伝わるようになったところで、後はやはり上述同様に第
１の電極板１９ｃ、第２の電極板２２Ｃ，アナログスイ
ッチ２８ｃ フィルタ２９アンプ３０．コンパレータ
３１を経て水位検出信号が入力されるものであり、かく
して、脱水兼用洗濯槽８内の貯留水位が「高」の位置の
電極片１２０部分に達したことを検知できる。In addition, in order to change the water level stored in the washing tub 8 for dehydration and dehydration due to water supply to the above-mentioned "middle" position where the electrode piece 12b is located, and to stop it at the "high" position where the electrode piece 12c is located, a signal reception switching circuit is installed. If the analog switch 28c of
When the water level stored in the electrode reaches the electrode piece 12c, the electrode piece 1
When the output signal of the oscillator 24 is transmitted to the electrode piece 12a through the capacitor formed between the water in the washing tub 8 and the dehydrating washing tub 8, the rest is as described above. Second electrode plate 22C, analog switch 28c, filter 29, amplifier 30. A water level detection signal is inputted through the comparator 31, and it is thus possible to detect that the water level stored in the washing tub 8 for both spin drying and washing has reached the "high" position of the electrode piece 120.
なお、いずれの場合にも、必要な水位を検知したところ
では、給水弁３２を断電して閉塞させ、代わってモータ
４を普通に通電し起動させて洗濯を開始させる。In any case, when the required water level is detected, the water supply valve 32 is cut off and closed, and instead, the motor 4 is normally energized and activated to start washing.
］ ２
そして脱水時には、脱水兼用洗濯槽８がモータ４により
回転されることによる遠心力で、上端部の脱水口である
小孔７から脱水をするもので、このとき、もし電極片１
２ａ、１２ｂ、１２ｃに洗剤やごみ、水滴等が付着して
いれば（本実施例のように電極片１．２ａ、１２ｂ、１
２ｃをカバー１５で覆ったものの場合には、その可能性
は少ない）それらは、上記遠心力で電極片１２ａ、１２
ｂ。2. At the time of dehydration, the centrifugal force caused by the rotation of the dehydration washing tub 8 by the motor 4 dewaters the water through the small hole 7 which is the dehydration port at the upper end. At this time, if the electrode piece 1
If detergent, dirt, water droplets, etc. are attached to the electrode pieces 2a, 12b, 12c (as in this example, the electrode pieces 1.2a, 12b, 1.
2c covered with a cover 15, the possibility of this happening is low) The centrifugal force causes the electrode pieces 12a, 12 to
b.
１２ｃから外方（カバー１５内）に飛ばされ、除去され
る。12c to the outside (inside the cover 15) and removed.
このように本実施例によれば、脱水口（小孔７）を上端
部にのみ有することで、外桶２にまで水を貯留すること
のない節水タイプの脱水兼用洗濯槽８の貯留水位を検出
するについて、その脱水兼用洗濯槽８の外面部に設けた
電極片１２ａ、１２ｂ。In this way, according to this embodiment, by having the dewatering port (small hole 7) only at the upper end, the water level stored in the water-saving washing tub 8, which is a water-saving type that does not store water in the outer tub 2, can be reduced. For detection, electrode pieces 12a and 12b are provided on the outer surface of the washing tub 8 for both dehydration and dehydration.
１２ｃによりそれができ、脱水兼用洗濯槽８から水を噴
出させることがないので、充分な節水効果が得られるも
のであり、又、その水の噴出に関係なく貯留水位の検出
ができるので、単位時間当りの給水量か少ない時にも確
実な水位検出ができ、更に、洗濯中での水の流出もない
ので、洗濯性能を良好に得ることができる。12c can do this, and since no water is spewed out from the washing tub 8 for both spin-drying and washing, a sufficient water-saving effect can be obtained.Also, the stored water level can be detected regardless of the spouting of water, so the unit The water level can be detected reliably even when the amount of water supplied per hour is small, and furthermore, since no water flows out during washing, good washing performance can be obtained.
そしてそれに加え、上記脱水兼用洗濯槽８の外面部に設
けた電極片１２ａ、１２ｂ、１２ｃには、槽内での洗濯
時やすすぎ時に水に含まれる洗剤やごみ等が付着するこ
とが全くなく、そのほか、槽外ではごみ等がイ」着する
可能性があるが、それも、電極片１２ａ、１２ｂ、１２
ｃをカバー１５で覆った上記構成のものでは少なく、又
、もしそれら電極片１２ａ、１２ｂ、１２ｃにごみ等が
付着した場合でも、それは前述のように脱水時における
脱水兼用洗濯槽８の回転による遠心力で外方に飛ばし除
去できるから、従来の脱水兼用洗濯槽８の内面部に設け
た電極片のような汚れの問題がなく、それによる狂いを
生じることもない確実な動作で水位の検出ができる。In addition, the electrode pieces 12a, 12b, and 12c provided on the outer surface of the washing tub 8 for dehydration and washing are free from any detergent or dirt contained in the water during washing or rinsing in the tub. In addition, there is a possibility that dust etc. may accumulate outside the tank, but this also prevents the electrode pieces 12a, 12b, 12
There are few cases where the electrodes 12a, 12b, and 12c have the above-mentioned structure in which the electrodes 12a, 12b, and 12c are covered with the cover 15, and even if dirt or the like adheres to the electrode pieces 12a, 12b, and 12c, it will be caused by the rotation of the washing tub 8 that also serves as a spin-dryer during spin-drying, as described above. Because it can be removed by flying outwards using centrifugal force, there is no problem of dirt like the electrode pieces provided on the inner surface of the conventional washing tub 8, which also serves as a spin-drying machine, and the water level can be detected with reliable operation without causing errors. I can do it.
なお、カバー１５は必ずしも必要なものではなく、必要
とするもののみそれを具えるようにしても良い。又、水
位の検出は複数段でなく、−段でのみ行なうものであっ
ても良いものであり、更にその電極片１２ａ、］、２ｂ
、１２ｃ以外の水位検出構造も、前述以外に適宜選定し
て構成すれば良い。加えて、脱水兼用洗濯槽の脱水口は
、その槽壁に穿設する小孔によってでなく、槽上端とバ
ランスリングとの間に形成するに隙間でもって、それと
なすようにしても良い。Note that the cover 15 is not necessarily required, and only the necessary cover may be provided. Furthermore, the water level may be detected not in multiple stages but only in the - stage, and furthermore, the electrode pieces 12a, ], 2b
, 12c may be appropriately selected and configured in addition to those described above. In addition, the dewatering port of the washing tub for dewatering and washing may be formed not by a small hole drilled in the wall of the tub, but by a gap formed between the top end of the tub and the balance ring.
［発明の効果］
以」−の記述で明らかなように、本発明の洗濯機によれ
ば、脱水口を上端部にのみ有する脱水兼用洗濯槽の設定
水位位置に電極片を設け、この電極片により上記脱水兼
用洗濯槽の貯留水位を検出するようにしたものにあって
、その電極片を、上記脱水兼用洗濯槽の外面部に設けた
のであるから、節水タイプの脱水兼用洗濯槽の貯留水位
を検出するについて、それを、その脱水兼用洗濯槽から
水を噴出させず、従って、充分な節水効果が得られ、又
、確実な水位検出ができて、更に洗濯性能が良好に得ら
れるようにして行ない得るというだけでなく、洗剤やご
み等の付着による狂いのない、より確実な動作で行なう
ことができるという優れた効果が得られるものである。[Effects of the Invention] As is clear from the description below, according to the washing machine of the present invention, an electrode piece is provided at the set water level position of the dehydrating and washing tub having the dehydrating port only at the upper end. Since the electrode piece is provided on the outer surface of the above-mentioned spin-drying washing tub, the water-saving water level of the water-saving washing tub can be detected. In order to detect this, water is not spouted out from the washing tub that also serves as a spin-drying machine, so that a sufficient water saving effect can be obtained, and the water level can be detected reliably, and furthermore, good washing performance can be obtained. Not only can this be done, but it also has the excellent effect of being able to perform the operation more reliably without being disrupted by the adhesion of detergent, dirt, etc.
図面は本発明の一実施例を示したもので、第１図は第３
図のＩ−Ｉ線に沿う主要部分の縦断面図、第２図は全体
の縦断面図、第３図は電極片部分の正面図、第４図は第
３図のＩＶ−ＩＶ線に沿う電極片部分一部の横断面図、
第５図は全体的な原理的構成図、第６図は脱水兼用洗濯
槽の位置検出をする部分の拡大縦断面図、第７図は電気
的概略構成図である。
図面中、７は小孔（脱水口）、８は脱水兼用洗濯槽、１
２ａ、１２ｂ、１２ｃは電極片を示す。The drawings show one embodiment of the present invention, and FIG.
Figure 2 is a vertical cross-sectional view of the main part along line I-I in the figure, Figure 3 is a front view of the electrode piece part, Figure 4 is along line IV-IV in Figure 3. A cross-sectional view of part of the electrode piece,
FIG. 5 is an overall theoretical configuration diagram, FIG. 6 is an enlarged longitudinal cross-sectional view of a portion for detecting the position of the washing tub for spin-drying, and FIG. 7 is a schematic electrical configuration diagram. In the drawing, 7 is a small hole (dehydration port), 8 is a laundry tub that also serves as a dehydrator, and 1
2a, 12b, and 12c indicate electrode pieces.
Claims (1)
水位位置に電極片を設け、この電極片により上記脱水兼
用洗濯槽の貯留水位を検出するようにしたものであって
、その電極片を、上記脱水兼用洗濯槽の外面部に設けて
成ることを特徴とする洗濯機。1. An electrode piece is provided at the set water level position of a laundry tub with a dewatering port only at the upper end, and the electrode piece is used to detect the water level stored in the laundry tub with a dewatering port. A washing machine characterized in that: is provided on the outer surface of the above-mentioned dehydrating and washing tub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2107312A JPH0420394A (en) | 1990-04-23 | 1990-04-23 | Washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2107312A JPH0420394A (en) | 1990-04-23 | 1990-04-23 | Washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0420394A true JPH0420394A (en) | 1992-01-23 |
Family
ID=14455890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2107312A Pending JPH0420394A (en) | 1990-04-23 | 1990-04-23 | Washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1375728A1 (en) * | 2001-04-05 | 2004-01-02 | Sanyo Electric Co., Ltd. | Electric washing machine |
| US7296444B2 (en) | 2001-04-05 | 2007-11-20 | Sanyo Electric Co., Ltd. | Electric washing machine |
-
1990
- 1990-04-23 JP JP2107312A patent/JPH0420394A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1375728A1 (en) * | 2001-04-05 | 2004-01-02 | Sanyo Electric Co., Ltd. | Electric washing machine |
| EP1375728A4 (en) * | 2001-04-05 | 2006-03-15 | Sanyo Electric Co | Electric washing machine |
| US7296444B2 (en) | 2001-04-05 | 2007-11-20 | Sanyo Electric Co., Ltd. | Electric washing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06154463A (en) | Drum type washing/drying machine and bubble sensing device | |
| JPH0420394A (en) | Washing machine | |
| JPH05212189A (en) | Washing machine | |
| KR20010077081A (en) | bubble detection method of washing machine | |
| JP2005143533A (en) | Washing machine | |
| US7197900B2 (en) | Washing machine | |
| JPH03221097A (en) | Washer | |
| KR20030044491A (en) | Automatically rinse controlling apparatus and method for washing mechine | |
| JPH06182082A (en) | Washing machine | |
| EP1103646A1 (en) | Water system washing machine for clothes equipped with "dry mark" | |
| KR20000055285A (en) | Bubble exclusion method of drum washing machine | |
| JPS6234596A (en) | Dehydration control of dehydration washing machine | |
| JPH10314487A (en) | Method for washing in washing machine | |
| JPH01218494A (en) | Drum laundry dryer | |
| KR100286821B1 (en) | Method for controlling washing of washing machine | |
| JPS626470B2 (en) | ||
| KR19990043320A (en) | Intermittent dewatering control method of washing machine | |
| JPH11300075A (en) | Washing machine capable of cleaning washings using dehydrating drum | |
| KR19980078252A (en) | Method for washing by detecting the degree of contamination of the wash water and washing machine for performing the same | |
| KR100257748B1 (en) | Dehydrating control apparatus and the method for washing machine | |
| KR100229475B1 (en) | The washing machine | |
| JPH11239696A (en) | Washing machine | |
| JP4086420B2 (en) | Fully automatic washing machine | |
| JPH0313917B2 (en) | ||
| KR19990030693A (en) | Unbalance Control Method of Fully Automatic Washing Machine |