JPH026558B2 - - Google Patents
Info
- Publication number
- JPH026558B2 JPH026558B2 JP57009299A JP929982A JPH026558B2 JP H026558 B2 JPH026558 B2 JP H026558B2 JP 57009299 A JP57009299 A JP 57009299A JP 929982 A JP929982 A JP 929982A JP H026558 B2 JPH026558 B2 JP H026558B2
- Authority
- JP
- Japan
- Prior art keywords
- detector
- washing
- turbidity
- control
- output
- 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
- 238000005406 washing Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000003599 detergent Substances 0.000 description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- -1 that is Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は、洗濯液の濁度、すゝぎ液の濁度、排
水時の水の有無、脱水時の脱水状態等の洗濯機作
動工程の状態を光結合素子を用いて光学的に検出
して洗濯、すゝぎ、脱水、排水を制御する場合、
光結合素子の出力が極度に低下した際に検出不良
の状態で運転が続行されることを防止するため
に、このような状態になつた時には標準プログラ
ム運転に切換制御するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a photocoupler to detect the operating process conditions of a washing machine, such as the turbidity of the washing liquid, the turbidity of the rinsing liquid, the presence or absence of water during draining, and the dehydration state during spin-drying. When controlling washing, rinsing, spin-drying, and drainage using optical detection,
In order to prevent operation from continuing in a state of poor detection when the output of the optical coupling element is extremely reduced, control is switched to standard program operation when such a state occurs.
従来の全自動洗濯機における制御は、予めタイ
マーに設定された時限により運転されていたが、
布量、水量、布の種類、水位、洗剤量などに応じ
た最適な洗濯ができ難い欠点があつた。この欠点
を解消するために電子制御により自動的に洗濯、
すゝぎ、脱水の制御を行なうことも試みられ、特
に洗濯液やすゝぎ液の濁度を光結合素子つまり赤
外発光ダイオードの発光素子から発光される光
を、洗濯液やすゝぎ液を介して受光素子のホトト
ランジスタに受光する受光量により濁度変化を検
知していた。 Conventional fully automatic washing machines were controlled by a time limit set in advance on a timer, but
It has the disadvantage that it is difficult to perform optimal washing according to the amount of cloth, amount of water, type of cloth, water level, amount of detergent, etc. In order to eliminate this drawback, washing automatically by electronic control,
Attempts have also been made to control rinsing and dehydration, in particular by controlling the turbidity of washing liquid or rinsing liquid by using light emitted from a photocoupler, that is, an infrared light emitting diode, through the washing liquid or rinsing liquid. Changes in turbidity were detected based on the amount of light received by the phototransistor of the light receiving element.
この場合、濁度の大小、光結合素子の汚れ等に
よる発光量、受光感度を調整して最適な状態で制
御するようにしているが、光結合素子の断線、極
度の汚れ、異物などによる遮蔽に原因して極度に
出力が低下した場合、光結合素子による検出制御
ができ難い欠点があつた。 In this case, the level of turbidity, the amount of light emitted by the photocoupler due to dirt, etc., and the light receiving sensitivity are adjusted to achieve optimal control. When the output is extremely reduced due to this, there is a drawback that it is difficult to perform detection control using the optical coupling element.
本発明は、光結合素子により検出制御できない
状態になつた場合、自動的に標準設定プログラム
で動作できるようにして上記従来の欠点を除去し
たもので以下その一実施例について詳述する。 The present invention eliminates the above-mentioned conventional drawbacks by automatically operating a standard setting program when the optical coupling element becomes unable to perform detection control.One embodiment of the present invention will be described in detail below.
洗濯機の概略構成を示す第１図において、１は
本体、２は本体１にけん垂された外槽、３は衣類
を洗濯、脱水する内槽で、脱水時にはこの内槽３
が外槽２の下部に取りつけたモータ４によつて回
転され、また洗濯、すゝぎ時にはモータ４によつ
てパルセータ５が回転される。６は外槽２の底部
に取りつけられた検出器である。検出器６は第２
図に示すように内部に赤外発光ダイオードからな
る発光素子７と、ホトトランジスタからなる受光
素子８とが対向して設けられており、この発光素
子７と受光素子８との間は、洗濯液およびすゝぎ
液が自由に通過できる構成となつている。検出器
６のアナログ出力をデジタルに変換するＡ−Ｄ変
換部と、状態ならびにシーケンス制御を行なう制
御部とからなる制御回路を示す第３図において、
９はＡ−Ｄ変換部で、検出器６の出力電圧V0の
アナログ値をデジタル値に変換する機能を有して
いる。１０は洗濯運転の総合的なシーケンス制御
を行なう制御部で、マイクロコンピユータにより
構成されている。１１はマルチプレクサで制御部
１０の信号により発光素子７の動作抵抗RA，RB
を選択して発光出力を切り換えている。１２は可
視発光素子で検出器６の動作が不良になつた時に
点灯して表示する。 In FIG. 1 showing the general structure of a washing machine, 1 is a main body, 2 is an outer tank suspended from the main body 1, and 3 is an inner tank for washing and dehydrating clothes.
is rotated by a motor 4 attached to the lower part of the outer tub 2, and a pulsator 5 is rotated by the motor 4 during washing and rinsing. 6 is a detector attached to the bottom of the outer tank 2. Detector 6 is the second
As shown in the figure, a light emitting element 7 made of an infrared light emitting diode and a light receiving element 8 made of a phototransistor are provided inside to face each other. The structure is such that the rinsing liquid can freely pass through. In FIG. 3 showing a control circuit consisting of an A-D converter that converts the analog output of the detector 6 into digital, and a controller that performs status and sequence control,
Reference numeral 9 denotes an A-D converter, which has a function of converting the analog value of the output voltage V0 of the detector 6 into a digital value. Reference numeral 10 denotes a control section that performs comprehensive sequence control of the washing operation, and is composed of a microcomputer. 11 is a multiplexer that adjusts the operating resistances R A and R B of the light emitting element 7 according to the signal from the control unit 10.
is selected to switch the light output. Numeral 12 is a visible light emitting element that lights up to indicate when the detector 6 malfunctions.
一般に洗濯用の洗剤には、有リン洗剤すなわち
リンを含む洗剤と、無リン洗剤すなわちリンを含
まない洗剤とがあり、有リン洗剤と無リン洗剤と
では洗剤液の濁度が異なる。すなわち有リン洗剤
の場合0.133％濃度が約220ppm、無リン洗剤の場
合0.133％濃度が約20〜40ppmとなるので、マル
チプレクサ１１によつて選択する発光素子７の動
作抵抗は、無リン洗剤のときはRAの特性で検出
できる。しかしRAの特性で有リン洗剤の場合に
検知しようとすると濁度に対しての電圧変化量が
小となるので、一定の電圧レベルV1以下ならば
RBの特性に切り換えて感度を上げることにより
制御している。 In general, laundry detergents include phosphorus-containing detergents, that is, detergents that contain phosphorus, and phosphorus-free detergents, that is, detergents that do not contain phosphorus.The turbidity of the detergent liquid differs between phosphorus-containing detergents and phosphorus-free detergents. That is, in the case of a phosphorus-containing detergent, the 0.133% concentration is about 220 ppm, and in the case of a phosphorus-free detergent, the 0.133% concentration is about 20 to 40 ppm. Therefore, the operating resistance of the light emitting element 7 selected by the multiplexer 11 is can be detected using the characteristics of R A. However, due to the characteristics of R A , when trying to detect phosphorus-containing detergents, the amount of voltage change with respect to turbidity is small, so if the voltage level is below a certain voltage level V 1 ,
It is controlled by switching to the R B characteristic and increasing the sensitivity.
しかし、洗濯工程やすすぎ工程の初期段階で、
検出器６の表面や外槽２が極度に汚れていたり、
光経路に糸くずやボタン等が付着して発光素子か
らの光が遮ぎられていたりした場合は、検出器６
の出力電圧が極端に低下する。この出力電圧V0
と濁度ppmの関係を第４図に示す。検出器６の出
力電圧V0がV1以下となつた場合（濁度に換算し
た場合250ppm、500ppm以上に相当）は、動作抵
抗RA，RBをマルチプレクサ１１により高感度側
（R3側）に切換えて検出感度を上げても正常には
動作しない。 However, in the early stages of the washing and rinsing process,
If the surface of the detector 6 or the outer tank 2 is extremely dirty,
If the light from the light emitting element is blocked by lint, buttons, etc. attached to the light path, the detector 6
The output voltage of the device drops significantly. This output voltage V 0
Figure 4 shows the relationship between turbidity ppm and turbidity ppm. When the output voltage V 0 of the detector 6 becomes lower than V 1 (equivalent to 250 ppm or 500 ppm or higher when converted to turbidity), the operating resistances R A and R B are changed to the high sensitivity side (R 3 side) by the multiplexer 11. ) and increase the detection sensitivity, it will not work properly.
したがつてこのような場合、すなわち検出器６
の動作中にもかかわらず、出力電圧V0が予め設
定された一定値V1以下であるような場合は、制
御部１０が検出器６が故障している。あるいは光
経路に発光素子の光を遮蔽する遮蔽物が付着して
いると判定して、検出器６による運転制御を停止
させ、予め設定されている標準プログラムによる
運転を行うよう自動的に切換える。 Therefore, in such a case, that is, the detector 6
If the output voltage V 0 is below a preset constant value V 1 even though the detector 6 is in operation, the controller 10 detects that the detector 6 is malfunctioning. Alternatively, it is determined that a shielding object that blocks the light from the light emitting element is attached to the optical path, the operation control by the detector 6 is stopped, and the operation is automatically switched to perform operation according to a preset standard program.
すなわち、初期の段階で検出器による検出不良
と判断すれば、洗濯で標準的なプログラムに移行
するため、運転時間が必要以上に長くなることも
ないとともに、検出不良を知らずに使用者が使用
する場合が多いため、その検出不良は初期段階か
ら発生していることが多く、この初期段階と標準
プログラムに移行すれば、布の損傷、運転時間等
にほとんど影響を与えず、洗濯を終了でき、検出
器による自動制御を行う洗濯機にはきわめて有効
である。 In other words, if a detection failure is determined by the detector at an early stage, the program will switch to the standard program for washing, so the operating time will not be longer than necessary, and the user will be able to use the machine without being aware of the detection failure. In many cases, the detection failure occurs from the initial stage, and if you shift to this initial stage and the standard program, you can finish washing without damaging the fabric or affecting the operating time. This is extremely effective for washing machines that are automatically controlled by detectors.
なお検出器６による運転が行なわれなかつた事
を表示するために、制御部１０によりトランジス
タQ1をオンさせて可視表示素子１２を点灯させ
るようにすることが好ましい。 In order to indicate that the detector 6 is not operating, it is preferable that the controller 10 turns on the transistor Q1 and lights up the visible display element 12.
このように検出器６の感度が状態に応じて自動
的に制御されていても、素子不良、断線、光経路
における遮蔽物および汚れの発生等により極度に
出力が低下したときには、検出器６による検出制
御で運転すると正常な動作が行なわれないので標
準運転プログラムに切換制御して洗濯、すゝぎな
どの不良を防止することができる。 Even if the sensitivity of the detector 6 is automatically controlled according to the state, if the output is extremely reduced due to element failure, disconnection, obstructions or dirt in the optical path, etc., the sensitivity of the detector 6 will be automatically controlled. If the machine is operated under detection control, it will not operate normally, so it is possible to switch to a standard operating program to prevent defects such as washing or rinsing.
以上のように本発明は、検出器の動作中にその
出力が一定値以下となれば、それ以降の制御を標
準プログラム運転に切換えるため、良好な洗濯、
すすぎが行え、しかも、検出器の故障等により運
転制御が必要以上に長くなることも防止でき、節
水、節電においても有用な運転方法である。 As described above, in the present invention, if the output of the detector falls below a certain value while the detector is in operation, the subsequent control is switched to the standard program operation, so that good washing and
This is a useful operating method for water and power saving, as it allows for rinsing and prevents operation control from taking longer than necessary due to detector failure.
第１図は本発明の一実施例における全自動洗濯
機の概略構成図、第２図は同洗濯機における検出
器の説明図、第３図は同検出器を含む制御回路
図、第４図は同検出器の濁度と出力電圧との関係
線図である。
６……検出器、７……発光素子、８……受光素
子、１０……制御部。
Fig. 1 is a schematic configuration diagram of a fully automatic washing machine according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of a detector in the washing machine, Fig. 3 is a control circuit diagram including the detector, and Fig. 4 is a relationship diagram between turbidity and output voltage of the same detector. 6...detector, 7...light emitting element, 8...light receiving element, 10...control unit.
Claims (1)
の有無、脱水時の脱水状態等の洗濯機作動工程の
初期段階からその状態を光学的に検出する検出器
を設け、この検出器の出力に応じて各工程の運転
制御を行い、前記検出器の動作時にその出力が検
出不良となる一定値以下のときには前記検出器に
よる運転制御を中止し、あらかじめ設定された標
準プログラム運転に切換制御する洗濯機の運転方
法。1. A detector is installed that optically detects the turbidity of the washing liquid, the turbidity of the rinsing liquid, the presence or absence of water during drainage, the dehydration state during spin-drying, etc. from the initial stage of the washing machine operation process, and this detection The operation of each process is controlled according to the output of the detector, and when the output is below a certain value that causes a detection failure when the detector is operating, the operation control by the detector is stopped and the operation is returned to a preset standard program operation. How to operate a washing machine with switching control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57009299A JPS58127696A (en) | 1982-01-22 | 1982-01-22 | Operation of washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57009299A JPS58127696A (en) | 1982-01-22 | 1982-01-22 | Operation of washer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58127696A JPS58127696A (en) | 1983-07-29 |
| JPH026558B2 true JPH026558B2 (en) | 1990-02-09 |
Family
ID=11716585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57009299A Granted JPS58127696A (en) | 1982-01-22 | 1982-01-22 | Operation of washer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58127696A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2639071B2 (en) * | 1989-03-17 | 1997-08-06 | 松下電器産業株式会社 | Washing machine control device |
| JPH03133493A (en) * | 1989-10-19 | 1991-06-06 | Matsushita Electric Ind Co Ltd | Controller of washing machine |
| JPH03168191A (en) * | 1989-11-29 | 1991-07-19 | Matsushita Electric Ind Co Ltd | Controller for washing machine |
| JP2013085763A (en) * | 2011-10-19 | 2013-05-13 | Mitsubishi Electric Corp | Dishwasher |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532564A (en) * | 1978-08-31 | 1980-03-07 | Matsushita Electric Ind Co Ltd | Controller of electric washing machine |
| JPS56161091A (en) * | 1980-05-16 | 1981-12-11 | Hitachi Ltd | Control circuit for washing machine |
-
1982
- 1982-01-22 JP JP57009299A patent/JPS58127696A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532564A (en) * | 1978-08-31 | 1980-03-07 | Matsushita Electric Ind Co Ltd | Controller of electric washing machine |
| JPS56161091A (en) * | 1980-05-16 | 1981-12-11 | Hitachi Ltd | Control circuit for washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58127696A (en) | 1983-07-29 |
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