JPH0790068B2 - Washing machine - Google Patents
Washing machineInfo
- Publication number
- JPH0790068B2 JPH0790068B2 JP60134534A JP13453485A JPH0790068B2 JP H0790068 B2 JPH0790068 B2 JP H0790068B2 JP 60134534 A JP60134534 A JP 60134534A JP 13453485 A JP13453485 A JP 13453485A JP H0790068 B2 JPH0790068 B2 JP H0790068B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- dehydration
- tub
- washing machine
- noise
- 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
Landscapes
- Control Of Washing Machine And Dryer (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、内槽を洗濯兼脱水槽とし、内槽の中心部に撹
拌翼を設け、洗濯と脱水を洗濯兼脱水槽で行わせるよう
にした洗濯機に関するものである。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention According to the present invention, an inner tub is a washing / dehydrating tub, a stirring blade is provided at the center of the inner tub, and washing and dewatering are performed in the washing / dehydrating tub. It concerns a washing machine.
従来の技術 従来のこの種の洗濯機においては、脱水起動時に洗濯物
の偏荷重により、設置面に対して外槽に水平方向に大き
な振動が発生した場合、本体の一部に設けられた検知器
でその振動を検出して脱水を停止し、内槽に注水し、撹
拌翼で洗濯物を撹拌し、再び脱水を行うことにより、脱
水起動時に外槽が本体に衝突するのを抑制していた。2. Description of the Related Art In this type of conventional washing machine, when a large vibration occurs horizontally in the outer tub with respect to the installation surface due to an unbalanced load on the laundry at the time of starting dehydration, the detection provided on a part of the main body The vibration is detected by the container, the dehydration is stopped, water is poured into the inner tub, the laundry is stirred by the stirring blades, and the dehydration is performed again to prevent the outer tub from colliding with the main body when the dehydration starts. It was
発明が解決しようとする問題点 本発明者らが洗濯機の騒音に関する要因分析を行った結
果、脱水時の外槽の振動レベルと騒音レベルの相関にお
いて、設置面に対して水平方向の振動より垂直方向の振
動の方が極めて高い相関があり、前記した従来の技術の
ように水平方向の外槽の振動を検出する構成では、脱水
時の騒音レベルの高い状態を検出し、そして洗濯物のバ
ランスを取り直し、脱水することにより脱水時の騒音低
下をはかることは困難であるという欠点を有していた。Problems to be Solved by the Invention As a result of a factor analysis relating to noise of the washing machine by the present inventors, in the correlation between the vibration level of the outer tub and the noise level during dehydration, the vibration in the horizontal direction relative to the installation surface The vibration in the vertical direction has a much higher correlation, and in the configuration for detecting the vibration of the outer tub in the horizontal direction as in the above-mentioned conventional technique, the state of high noise level during dehydration is detected, and the laundry is washed. There is a drawback that it is difficult to reduce noise during dehydration by rebalancing and dehydrating.
本発明は上記従来の欠点に鑑み、脱水時の騒音が高い場
合には、脱水を停止して洗濯物のバランスを取り直し、
脱水することにより、脱水時の騒音を低下させることが
できる洗濯機を提供することを目的とする。In view of the above-mentioned conventional drawbacks, the present invention stops the dehydration and rebalances the laundry when the noise during the dehydration is high,
An object of the present invention is to provide a washing machine capable of reducing noise during dehydration by dehydrating.
問題点を解決するための手段 上記問題点を解決するために本発明の洗濯機は、本体内
に洗濯兼脱水槽とした内槽と、この内槽の外周に外槽
と、前記内槽の中心部に撹拌手段を駆動する負荷と、本
体の設置面に対して前記外槽の垂直方向の振動を検知
し、振動騒音を検知するための振動検知手段と、脱水時
において前記振動検知手段により前記外槽の振動騒音値
が所定値を越えた時には、脱水を停止し、前記内槽に注
水して前記撹拌手段により洗濯物を再撹拌し、再度、脱
水を行う制御手段とを備えたものである。Means for Solving the Problems In order to solve the above problems, the washing machine of the present invention has an inner tub as a washing and dehydrating tub in the main body, an outer tub on the outer periphery of the inner tub, and an inner tub of the inner tub. The load that drives the stirring means in the center, the vibration detection means for detecting the vibration in the vertical direction of the outer tub with respect to the installation surface of the main body, and the vibration noise, and the vibration detection means at the time of dehydration When the vibration noise value of the outer tub exceeds a predetermined value, dehydration is stopped, water is poured into the inner tub, the agitating means is used to re-agitate the laundry, and the control means is provided for performing the dehydration again. Is.
作用 この構成によれば、脱水時に騒音と高い相関がある外槽
の設置面に対し垂直な方向の振動を検出する制御手段に
よって、前記外槽の振動が一定以上になった場合には、
脱水を停止して内槽に注水し、撹拌手段で洗濯物を撹拌
し、再び脱水を行うため、騒音レベルの高い状態で脱水
されることがなくなり、その結果、脱水時の騒音低下が
図れるものである。Action According to this configuration, when the vibration of the outer tub becomes more than a certain level by the control means for detecting the vibration in the direction perpendicular to the installation surface of the outer tub, which has a high correlation with noise during dehydration,
Since dehydration is stopped, water is poured into the inner tank, laundry is agitated by the agitation means, and dehydration is performed again, dehydration is not performed in a high noise level, and as a result, noise during dehydration can be reduced. Is.
実施例 以下、本発明の一実施例を添付図面にもとづいて説明す
る。Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図は本発明の一実施例における洗濯機の断面図を示
したもので、この第１図において、１は本体、２は本体
１に取付けられた支持部である。３は外槽で、この外槽
３は支持部２にかけられた支持棒４によって支えられて
いる。５は内槽で、洗濯槽と脱水槽を兼用している。６
は内槽５の中央底部に設けられた撹拌翼、７は撹拌翼６
や内槽５を回転させるための伝達機構部で、内部に洗濯
用の減速ギヤや洗濯・脱水の切換クラッチを設けてい
る。８は外槽３の底部に取付けたモータで、このモータ
８の動力は伝達機構部７へプーリやベルトを介して伝達
される。９はモータ８の回転軸に取付けられた冷却用フ
ァンで、モータ８へ冷却風を送るものである。10は外槽
３の底部に設けられた排水弁である。11は例えば加速度
センサーを用いた振動検出器で、本体１の設置面に対し
て垂直な方向の外槽３の振動を検出している。FIG. 1 is a sectional view of a washing machine according to an embodiment of the present invention. In FIG. 1, reference numeral 1 is a main body, and 2 is a support portion attached to the main body 1. 3 is an outer tank, and this outer tank 3 is supported by a support rod 4 hung on a support portion 2. Reference numeral 5 denotes an inner tub that serves both as a washing tub and a dehydrating tub. 6
Is a stirring blade provided at the center bottom of the inner tank 5, and 7 is a stirring blade 6
A transmission mechanism for rotating the inner tub 5 and a reduction gear for washing and a switching clutch for washing / dehydrating are provided inside. A motor 8 is attached to the bottom of the outer tub 3, and the power of the motor 8 is transmitted to the transmission mechanism 7 via a pulley and a belt. A cooling fan 9 is attached to the rotating shaft of the motor 8 and sends cooling air to the motor 8. Reference numeral 10 is a drain valve provided at the bottom of the outer tank 3. Reference numeral 11 is a vibration detector using, for example, an acceleration sensor, and detects the vibration of the outer tub 3 in a direction perpendicular to the installation surface of the main body 1.
第２図は本発明の一実施例における洗濯機の制御部のブ
ロック図を示したもので、この第２図において、12は振
動検出手段で、振動検出器11の信号を基に動作する。13
は時間演算手段で、内槽５が回転を開始する、いわゆる
脱水起動時からの時間を演算する。14は判断手段で、前
記振動検出手段12および時間演算手段13からの信号が入
力され、脱水行程を継続するか否かを決定する。15は制
御手段で、前記判断手段14からの信号が入力され、洗濯
行程および脱水行程に付随する各行程を動作させる手段
を制御する。16は脱水手段で、内槽５を回転させる。17
は停止手段で、内槽５の回転を停止させる。18は注水手
段で、外槽３の内部に注水し、水を蓄えるものである。
19は洗濯手段で、撹拌翼６を回転させる。20は排水手段
で、この排水手段20は排水弁10を開き、外槽３より排水
を行う。FIG. 2 is a block diagram of the control unit of the washing machine in one embodiment of the present invention. In FIG. 2, 12 is a vibration detecting means, which operates based on the signal from the vibration detector 11. 13
Is a time calculation means for calculating the time from the so-called dehydration start time when the inner tank 5 starts rotating. Reference numeral 14 is a determination means, which receives signals from the vibration detection means 12 and the time calculation means 13 and determines whether or not to continue the dehydration process. Reference numeral 15 is a control means, which receives the signal from the judgment means 14 and controls the means for operating each step associated with the washing step and the dehydration step. Reference numeral 16 denotes a dehydrating means for rotating the inner tank 5. 17
Is a stopping means for stopping the rotation of the inner tank 5. Reference numeral 18 is a water injection means for injecting water into the outer tank 3 to store water.
A washing means 19 rotates the stirring blade 6. 20 is a drainage means, and this drainage means 20 opens the drainage valve 10 and drains water from the outer tank 3.
第３図は本発明の一実施例における洗濯機の制御部の動
作に関するプログラムのフローチャートを示したもので
ある。FIG. 3 shows a flow chart of a program regarding the operation of the control unit of the washing machine in the embodiment of the present invention.
以上のように構成された洗濯機において、次にその動作
を説明する。Next, the operation of the washing machine configured as described above will be described.
洗濯は、内槽５に洗濯物と洗濯水を入れ、第１図に図示
されていない制御部によって洗濯手段19を用いて伝達機
構部７の切換クラッチを洗濯側にし、かつモータ８の回
転を撹拌翼６に伝達機構部７を介して伝達して行う。ま
た、脱水は、洗濯物を内槽５に入れ、制御部の脱水手段
16を用いて伝達機構部７の切換クラッチを脱水側にし、
モータ８の回転を内槽５に伝達機構部７を介して伝達し
て行う。この時、内槽５内の洗濯物のバランス状態によ
り、外槽３に振動が発生する。この振動と騒音との相関
を本発明者らが検討した結果、洗濯機の設置面に垂直方
向の振動と騒音とに非常に高い相関があることがわかっ
ているため、（詳細は第４図の説明として後述する）上
記外槽３の振動は、方向性のある振動検出器11により垂
直方向の振動のみを検出している。For washing, the laundry and the washing water are put in the inner tub 5, and the control unit (not shown in FIG. 1) uses the washing means 19 to set the switching clutch of the transmission mechanism unit 7 to the washing side and the rotation of the motor 8. Transmission is performed to the stirring blade 6 via the transmission mechanism section 7. For dehydration, the laundry is put in the inner tub 5, and the dehydration means of the control unit
Use 16 to set the switching clutch of the transmission mechanism 7 to the dehydration side,
The rotation of the motor 8 is transmitted to the inner tank 5 via the transmission mechanism section 7. At this time, the outer tub 3 vibrates due to the balance of the laundry in the inner tub 5. As a result of examination by the present inventors of the correlation between the vibration and the noise, it has been found that there is a very high correlation between the vibration and the noise in the vertical direction on the installation surface of the washing machine (see FIG. 4 for details). With respect to the vibration of the outer tub 3, only the vertical vibration is detected by the directional vibration detector 11.
以下、第２図のブロック図および第３図のフローチャー
トを用いて、前記した垂直方向の振動値を基にどのよう
に本実施例の制御部が動作するかを説明する。まず、制
御手段15を通して脱水手段16によって内槽５を回転し、
脱水を開始する。次に脱水を開始してからの時間、すな
わち内槽５が回転してからの時間を時間演算手段13を用
いて検出し、その値をＴとする。ここで、あらかじめ前
記時間Ｔと内槽５の回転数との対比をつけて、振動検出
に最適な回転数となる時間をT0として制御部に記憶して
ある。次に、演算時間Ｔが設定時間T0以上になると、振
動検出手段12により、前記した垂直方向の振動値をＶに
入力する。また、ここで、あらかじめ騒音値の認否を決
める境界騒音値を設定し、振動と騒音との相関データよ
り、境界騒音値に対応する振動値を境界振動値V0として
制御部に記憶してある。次に、前記検出振動値Ｖと境界
振動値V0の大小を判断手段14により判断し、もし、Ｖ＜
V0であれば、制御手段15を通してそのまま脱水手段16を
継続させる。もし、Ｖ≧V0であれば、制御手段15を通し
て停止手段17によって内槽５の回転を停止し、次に、注
水手段18によって内槽５に注水し、次に、洗濯手段19に
よって撹拌翼６を回転させて洗濯物を撹拌し、次に、排
水手段20によって外槽３から排水し、次に、再び脱水手
段16によって内槽５を回転し、脱水を開始する。そし
て、脱水が開始されると、第３図のフローチャートのよ
うに前記した一連の制御部の動作を再び行う。なお、騒
音低下に関する制御部の動作は上記したプログラム通り
であるが、それに付随する動作は別のプログラムによっ
て行われる。例えば、Ｖ＜V0と判断されて回転しつづけ
る内槽５は、別のプログラム等によって、ある時間経過
後停止させられることになる。Hereinafter, with reference to the block diagram of FIG. 2 and the flowchart of FIG. 3, how the control unit of this embodiment operates based on the vibration value in the vertical direction will be described. First, the inner tank 5 is rotated by the dehydrating means 16 through the control means 15,
Start dehydration. Next, the time from the start of dehydration, that is, the time from the rotation of the inner tank 5 is detected by the time calculating means 13, and the value is set as T. Here, the time T and the number of revolutions of the inner tank 5 are compared in advance, and the time at which the number of revolutions is optimum for vibration detection is stored as T 0 in the control unit. Next, when the calculation time T becomes equal to or longer than the set time T 0 , the vibration detecting means 12 inputs the above-mentioned vertical vibration value into V. In addition, here, a boundary noise value that determines acceptance / rejection of the noise value is set in advance, and the vibration value corresponding to the boundary noise value is stored in the control unit as the boundary vibration value V 0 from the correlation data between vibration and noise. . Next, the magnitude of the detected vibration value V and the boundary vibration value V 0 is judged by the judging means 14, and if V <
If V 0 , the dehydrating means 16 is continued through the control means 15 as it is. If V ≧ V 0 , the rotation of the inner tub 5 is stopped by the stopping means 17 through the control means 15, then water is poured into the inner tub 5 by the water filling means 18, and then the stirring blade is washed by the washing means 19. 6 is rotated to stir the laundry, then the drainage means 20 drains the outer tub 3, and then the dehydration means 16 rotates the inner tub 5 again to start dehydration. Then, when the dehydration is started, the operation of the series of control units described above is performed again as shown in the flowchart of FIG. The operation of the control unit related to noise reduction is according to the above-mentioned program, but the operation accompanying it is performed by another program. For example, the inner tank 5 which is determined to be V <V 0 and continues to rotate is stopped by a different program or the like after a certain time has elapsed.
このように本実施例によれば、設置面に対し垂直な方向
の外槽３の振動を検出する振動検出器11を外槽３の一部
に設け、脱水時の振動検出器11の信号の大きさ、すなわ
ち振動値の大きさと脱水開始からの時間とを合わせて判
断し、脱水を継続するか否かを決定し、継続しない場合
には、洗濯物のバランスを取り直して再び脱水するた
め、騒音レベルの高い状態で脱水を続けることはなくな
り、その結果、洗濯機の全行程中で最も騒音レベルの高
い脱水行程の騒音低下を図ることができる。As described above, according to this embodiment, the vibration detector 11 for detecting the vibration of the outer tub 3 in the direction perpendicular to the installation surface is provided in a part of the outer tub 3, and the signal of the vibration detector 11 at the time of dehydration is detected. The size, that is, the size of the vibration value and the time from the start of dehydration are combined to determine whether or not to continue the dehydration, and if not, to rebalance the laundry and dehydrate again, It is not necessary to continue dehydration in a state where the noise level is high, and as a result, it is possible to reduce the noise in the dehydration process having the highest noise level in the entire stroke of the washing machine.
上記した実施例の構成および一連の制御手段の基本とな
る外槽３の振動と騒音の相関について、以下説明する。
第４図は、振動と騒音の相関図である、●印は設置面に
垂直方向の外槽３の振動を示しており、○印は設置面に
水平方向の外槽３の振動を示している。この第４図から
も明らかなように、垂直方向の振動の方が水平方向の振
動の方より騒音との相関が著しく高いことがわかる。The correlation between the vibration of the outer tub 3 and the noise, which is the basis of the configuration of the above-described embodiment and the series of control means, will be described below.
Fig. 4 is a correlation diagram of vibration and noise. ● indicates the vibration of the outer tank 3 in the vertical direction to the installation surface, and ○ indicates the vibration of the outer tank 3 in the horizontal direction to the installation surface. There is. As is clear from FIG. 4, it is understood that the vertical vibration has a significantly higher correlation with the noise than the horizontal vibration.
なお、第２図の時間演算手段13の代わりに、内槽５やモ
ータ８等の回転数を回転計等を用いて検出する手段を使
えば、上記した実施例のように回転開始からの時間で回
転数を推定しなくてよいので、より正確に振動値を検出
できるものである。If a means for detecting the number of revolutions of the inner tank 5, the motor 8 and the like using a tachometer or the like is used instead of the time calculating means 13 of FIG. 2, the time from the start of rotation as in the above-mentioned embodiment is used. Since the rotation speed does not have to be estimated at, the vibration value can be detected more accurately.
また、本実施例では外槽３に振動検知器11を設けている
が、本体１の内部に設置面に対して垂直な方向の外槽３
の振動を間接的に検出できるセンサー等を用いてもよ
い。Further, in this embodiment, the vibration detector 11 is provided in the outer tank 3, but the outer tank 3 in the direction perpendicular to the installation surface is provided inside the main body 1.
You may use the sensor etc. which can detect the vibration of.
発明の効果 以上のように本発明によれば、洗濯機の本体内部に、設
置面に対し垂直な方向の外槽の振動を検出する振動検知
手段を設け、脱水時の振動検知手段の信号を基に脱水を
継続か否かを判断し、脱水の継続を停止する場合には、
内槽を停止し、この内槽に注水して撹拌手段で洗濯物を
撹拌し、再び脱水を行う制御手段を設けているため、騒
音レベルの高い状態のままで脱水が継続されることはな
くなり、その結果、洗濯機の全行程中で最も騒音レベル
の高い脱水時の騒音低下を図ることができ、しかも、生
産性が良いため、その実用的効果は大なるものがある。EFFECTS OF THE INVENTION As described above, according to the present invention, a vibration detecting means for detecting the vibration of the outer tub in the direction perpendicular to the installation surface is provided inside the main body of the washing machine, and the signal of the vibration detecting means at the time of dehydration is transmitted. If you decide whether to continue the dehydration based on the
Stopping the inner tub, pouring water into this inner tub, stirring the laundry with the stirring means, and again controlling dehydration, so there is no continuation of dehydration in a high noise level. As a result, the noise level at the time of dehydration, which has the highest noise level in the entire stroke of the washing machine, can be reduced, and since the productivity is good, the practical effect thereof is great.
第１図は本発明の一実施例を示す洗濯機の断面図、第２
図は同洗濯機における制御部のブロック図、第３図は同
洗濯機における制御部の動作に関するプログラムのフロ
ーチャート、第４図は外槽の振動と騒音との相関図であ
る。 １……本体、３……外槽、５……内槽、６……撹拌翼、
８……モータ、11……振動検知器。FIG. 1 is a sectional view of a washing machine showing an embodiment of the present invention, and FIG.
FIG. 4 is a block diagram of a control unit in the washing machine, FIG. 3 is a flow chart of a program regarding the operation of the control unit in the washing machine, and FIG. 4 is a correlation diagram between vibration and noise of the outer tub. 1 ... Main body, 3 ... Outer tank, 5 ... Inner tank, 6 ... Stirring blade,
8: Motor, 11: Vibration detector.
Claims (1)
内槽の外周に外槽と、前記内槽の中心部に撹拌手段を駆
動する負荷と、本体の設置面に対して前記外槽の垂直方
向の振動を検知し、振動騒音を検知するための振動検知
手段と、脱水時において前記振動検知手段により前記外
槽の振動騒音値が所定値を越えた時には、脱水を停止
し、前記内槽に注水して前記撹拌手段により洗濯物を再
撹拌し、再度、脱水を行う制御手段とを備えてなる洗濯
機。1. An inner tub used as a washing / dehydrating tub in the main body, an outer tub on the outer periphery of the inner tub, a load for driving a stirring means at the center of the inner tub, and an installation surface of the main body. Vibration detection means for detecting vertical vibration of the outer tub to detect vibration noise, and stop dehydration when the vibration noise value of the outer tub exceeds a predetermined value by the vibration detection means during dehydration Then, the washing machine is provided with a control means for injecting water into the inner tub, re-stirring the laundry by the stirring means, and performing dehydration again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60134534A JPH0790068B2 (en) | 1985-06-20 | 1985-06-20 | Washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60134534A JPH0790068B2 (en) | 1985-06-20 | 1985-06-20 | Washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61290983A JPS61290983A (en) | 1986-12-20 |
| JPH0790068B2 true JPH0790068B2 (en) | 1995-10-04 |
Family
ID=15130564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60134534A Expired - Lifetime JPH0790068B2 (en) | 1985-06-20 | 1985-06-20 | Washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0790068B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7409738B2 (en) * | 2005-04-28 | 2008-08-12 | Freescale Semiconductor, Inc. | System and method for predicting rotational imbalance |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5718919B2 (en) * | 1973-07-27 | 1982-04-19 | ||
| JPS6027555B2 (en) * | 1977-11-25 | 1985-06-29 | 株式会社日立製作所 | Fully automatic washing machine |
-
1985
- 1985-06-20 JP JP60134534A patent/JPH0790068B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61290983A (en) | 1986-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |