JP2001300182A - Washing machine - Google Patents

Washing machine

Info

Publication number
JP2001300182A
JP2001300182A JP2000127449A JP2000127449A JP2001300182A JP 2001300182 A JP2001300182 A JP 2001300182A JP 2000127449 A JP2000127449 A JP 2000127449A JP 2000127449 A JP2000127449 A JP 2000127449A JP 2001300182 A JP2001300182 A JP 2001300182A
Authority
JP
Japan
Prior art keywords
washing
water
tub
motor
water level
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
Application number
JP2000127449A
Other languages
Japanese (ja)
Inventor
Kazutoshi Adachi
一利 足立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2000127449A priority Critical patent/JP2001300182A/en
Publication of JP2001300182A publication Critical patent/JP2001300182A/en
Pending legal-status Critical Current

Links

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

Abstract

PROBLEM TO BE SOLVED: To improve the solubility of a detergent without being affected by the temperature difference of water for which bath water or the like is supplied by a pump, to reduce a residual detergent stuck to laundry, to effectively utilize water supply time for the stain removal of the laundry, to reduce noise due to the operation sound of the pump and to perform silencing. SOLUTION: An agitation blade 3 and a washing and dehydrating tub 2 are rotationally driven by a first motor 7, the bath water or the like is supplied into the washing and dehydrating tub 2 by a pump 14 provided with a second motor 15, and the first motor 7 and the second motor 15 are driven through the same inverter circuit. A control means performs a pre-washing tub rotation process for stopping the second motor 15 and rotationally driving the washing and dehydrating tub 2 at a water level lower than a prescribed water level at the time of supplying the bath water or the like by the pump 14. In the pre-washing tub rotation process, the water level at which the water is not sprinkled from the above into the inside of the washing and dehydrating tub 2 is set and the time of the pre-washing tub rotation process is changed corresponding to the output of a temperature detection means for detecting a water temperature inside a water receiving tub 1.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、洗濯時において回
転駆動される撹拌翼または洗濯兼脱水槽により機械力に
よる衣類の損傷や絡みを極力少なくするとともに、風呂
水等の水を洗濯水としその効果的な作用によって汚れの
除去を効率的に行い、衣類を洗濯または脱水させる洗濯
機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention minimizes damage and entanglement of clothes due to mechanical force by means of a stirring blade or a washing and dewatering tub that is rotated during washing, and uses water such as bath water as washing water. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for efficiently removing dirt by an effective action and washing or dewatering clothes.

【０００２】[0002]

【従来の技術】従来からの代表的な洗濯方式の一つであ
る撹拌翼式洗濯機の構成を図９を参照しながら説明す
る。2. Description of the Related Art The structure of a stirring blade type washing machine, which is one of the conventional typical washing systems, will be described with reference to FIG.

【０００３】図９に示すように、水受け槽８０は、底部
に撹拌翼８１を回転自在に配設した洗濯兼脱水槽８２を
内包し、吊り棒８３により洗濯機外枠８４に吊り下げて
いる。モータ８５は、Ｖベルト８６および減速機構兼ク
ラッチ８７を介して、撹拌翼８１または洗濯兼脱水槽８
２を駆動する。排水弁８８は洗濯兼脱水槽８２内の洗濯
水を排水し、給水弁８９は洗濯兼脱水槽８２内に給水す
るものである。[0003] As shown in FIG. 9, a water-receiving tub 80 includes a washing and dewatering tub 82 in which a stirring blade 81 is rotatably arranged at the bottom, and is suspended from a washing machine outer frame 84 by a suspension rod 83. I have. The motor 85 is connected to the stirring blade 81 or the washing and dewatering tub 8 via a V-belt 86 and a speed reduction mechanism / clutch 87.
2 is driven. The drain valve 88 drains the washing water in the washing and dewatering tub 82, and the water supply valve 89 supplies water to the washing and dewatering tub 82.

【０００４】洗濯兼脱水槽８２には脱水時の振動を低減
させるための流体バランサー９０を設け、洗濯兼脱水槽
８２の上部には蓋９１を配設している。制御装置９２
は、モータ８５、排水弁８８、給水弁８９などを制御し
て、洗濯、すすぎ、脱水の各行程を逐次制御するもので
ある。The washing and dewatering tub 82 is provided with a fluid balancer 90 for reducing vibration during dehydration, and a lid 91 is provided above the washing and dewatering tub 82. Control device 92
Controls the motor 85, the drain valve 88, the water supply valve 89, and the like to sequentially control the washing, rinsing, and dehydrating processes.

【０００５】上記構成において動作を説明すると、洗濯
兼脱水槽８２に洗濯物と所定量の洗剤を投入した後、洗
濯を開始すると制御装置９２により給水弁８９が制御さ
れて洗濯兼脱水槽８２内に所定量の水が給水され、その
後制御装置９２により、モータ８５が制御されて撹拌翼
８１が回転する。撹拌翼８１の回転によって洗濯兼脱水
槽８２内の洗濯物と水とが撹拌され、この撹拌によって
洗剤が徐々に溶解して洗濯水となり、洗濯物の汚れに作
用することとなる。The operation of the above construction will be described. When the laundry and a predetermined amount of detergent are put into the washing and dewatering tub 82 and then the washing is started, the water supply valve 89 is controlled by the control device 92 so that the inside of the washing and dewatering tub 82 is opened. Is supplied with a predetermined amount of water, and then the controller 85 controls the motor 85 to rotate the stirring blade 81. The rotation of the stirring blade 81 agitates the laundry and the water in the washing and dewatering tub 82, and the agitation causes the detergent to gradually dissolve into washing water, which acts on the soil of the laundry.

【０００６】[0006]

【発明が解決しようとする課題】しかしながら、この構
成の洗濯機の場合、投入された洗剤を溶解するために、
撹拌翼８１を高速で回転させて洗濯物や水を撹拌するの
が一般的であり、この場合、洗濯物に過度の機械力が加
わらないようにするため、洗濯兼脱水槽８２に所定量の
水を給水してから撹拌翼８１による撹拌を行っていた。However, in the case of the washing machine of this configuration, in order to dissolve the supplied detergent,
In general, the laundry and water are stirred by rotating the stirring blade 81 at a high speed. In this case, a predetermined amount of the washing and dewatering tub 82 is added to the washing and dewatering tub 82 in order to prevent excessive mechanical force from being applied to the laundry. After the water was supplied, stirring by the stirring blade 81 was performed.

【０００７】つまり、所定量の水が給水されるまでは撹
拌翼８１を撹拌させないため、この給水時間は洗濯物の
汚れ除去の観点からは、意味を持たないものとなってい
た。また、給水された水は洗濯物にそのまましみ込むこ
とになり、この場合、撹拌開始によって溶解しはじめた
洗剤が、洗濯物全体に浸透し、汚れ除去に必要な濃度に
均一化されるまで所定の時間が必要となり、この場合も
汚れ除去の観点からすると無駄な時間となっており、さ
らには、水温差により洗剤の溶解が不充分の場合が発生
する恐れもあった。In other words, since the stirring blade 81 is not stirred until a predetermined amount of water is supplied, this water supply time has no meaning from the viewpoint of removing stains from the laundry. In addition, the supplied water will permeate the laundry as it is, and in this case, the detergent that has begun to dissolve due to the start of stirring penetrates the entire laundry and reaches a predetermined level until the concentration is uniform to a level necessary for removing stains. This requires time, and in this case, too, wastes time from the viewpoint of removing dirt. Further, there is a possibility that the detergent may not be sufficiently dissolved due to a difference in water temperature.

【０００８】また、洗濯兼脱水槽８２内へ給水する場
合、風呂水を吸水するポンプを用いて給水するものが知
られているが、このものでも上記と同様な時間面での不
具合がある。加えて、ポンプによる給水の場合には、ポ
ンプの動作音に起因する騒音に問題があった。When water is supplied into the washing and dewatering tub 82, there is known a method in which water is supplied using a pump that absorbs bath water, but this also has the same time problem as described above. In addition, in the case of water supply by the pump, there is a problem in noise caused by the operation sound of the pump.

【０００９】本発明は上記課題を解決するもので、ポン
プにより風呂水等を給水する給水行程にて、給水の水温
差に影響されずに洗剤の溶解性を向上するとともに、洗
濯物に洗剤が付着する洗剤残りを低減し、洗剤を溶解し
た洗濯水を洗濯物の汚れに作用させて給水時間を洗濯物
の汚れ除去に有効に利用するようにし、かつ、ポンプの
動作音に起因する騒音を低減して静音化することを目的
としている。The present invention solves the above-mentioned problems. In the water supply step of supplying bath water or the like by a pump, the solubility of the detergent is improved without being affected by the temperature difference of the supply water, and the detergent is added to the laundry. Reduces the residual detergent that adheres, makes the washing water in which the detergent is dissolved act on the soil of the laundry so that the water supply time is effectively used for removing the soil of the laundry, and reduces the noise caused by the operation noise of the pump. The purpose is to reduce the noise and reduce noise.

【００１０】[0010]

【課題を解決するための手段】本発明は上記目的を達成
するために、撹拌翼を内底部に回転自在に配設した洗濯
兼脱水槽を水受け槽に回転自在に内包し、第１のモータ
により撹拌翼と洗濯兼脱水槽を回転駆動し、第２のモー
タを具備したポンプにより洗濯兼脱水槽内に風呂水等を
供給し、第１のモータおよび第２のモータを同じインバ
ータ回路を介し駆動し、制御手段により洗濯、すすぎ、
脱水等の一連の行程を制御するよう構成し、制御手段
は、ポンプを動作させて風呂水等を供給する際に、水位
検知手段によって検知される所定水位よりも低い少なく
とも１段階の水位において、第２のモータを停止させる
とともに第１のモータを回転させて洗濯兼脱水槽を回転
駆動するプレ洗濯槽回転行程を実施し、プレ洗濯槽回転
行程では、洗濯兼脱水槽と水受け槽との間の洗濯水を洗
濯兼脱水槽内に上方より散水しない水位に設定し、プレ
洗濯槽回転行程の時間を水受け槽内の水温を検知する温
度検知手段の出力に応じて変更可能としたものである。According to the present invention, in order to achieve the above object, a washing and dewatering tank in which a stirring blade is rotatably disposed at an inner bottom portion is rotatably contained in a water receiving tank. The stirring blade and the washing and dewatering tub are rotated and driven by a motor, and bath water and the like are supplied into the washing and dewatering tub by a pump equipped with a second motor. The first motor and the second motor are connected to the same inverter circuit. Driven through, washing, rinsing by control means,
It is configured to control a series of steps such as dehydration, the control means, at the time of operating the pump to supply bath water or the like, at least one stage water level lower than the predetermined water level detected by the water level detection means, A pre-washing tub rotation step of stopping the second motor and rotating the first motor to rotate the washing and spin-drying tub is performed. The washing water in between is set to a level that does not sprinkle water from above in the washing and dewatering tub, and the time of the pre-washing tub rotation stroke can be changed according to the output of the temperature detection means that detects the water temperature in the water receiving tub It is.

【００１１】これにより、ポンプにより風呂水等を給水
する給水行程にて、給水の水温差に影響されずに洗剤の
溶解性を向上できるとともに、洗濯物に洗剤が付着する
洗剤残りを低減することができ、洗剤を溶解した洗濯水
を洗濯物の汚れに作用させて給水時間を洗濯物の汚れ除
去に有効に利用することができ、かつ、ポンプの動作音
に起因する騒音を低減して静音化することができる。[0011] Thus, in the water supply process of supplying bath water or the like by the pump, the solubility of the detergent can be improved without being affected by the difference in the temperature of the supplied water, and the amount of detergent remaining on the laundry can be reduced. The washing water in which the detergent has been dissolved can act on the stains on the laundry to effectively use the water supply time to remove the stains on the laundry, and the noise caused by the operation noise of the pump can be reduced to reduce noise. Can be

【００１２】[0012]

【発明の実施の形態】本発明の請求項１に記載の発明
は、撹拌翼を内底部に回転自在に配設した洗濯兼脱水槽
と、この洗濯兼脱水槽を回転自在に内包した水受け槽
と、前記撹拌翼と洗濯兼脱水槽を回転駆動する第１のモ
ータと、第２のモータを具備し前記洗濯兼脱水槽内に風
呂水等を供給するポンプと、前記第１のモータおよび第
２のモータを同じインバータ回路を介し駆動し、洗濯、
すすぎ、脱水等の一連の行程を制御する制御手段と、前
記洗濯兼脱水槽の水位を検知する水位検知手段と、前記
水受け槽内の水温を検知する温度検知手段とを備え、前
記制御手段は、前記ポンプを動作させて風呂水等を供給
する際に、前記水位検知手段によって検知される所定水
位よりも低い少なくとも１段階の水位において、第２の
モータを停止させるとともに前記第１のモータを回転さ
せて前記洗濯兼脱水槽を回転駆動するプレ洗濯槽回転行
程を実施し、前記プレ洗濯槽回転行程では、前記洗濯兼
脱水槽と水受け槽との間の洗濯水を洗濯兼脱水槽内に上
方より散水しない水位に設定し、前記プレ洗濯槽回転行
程の時間を温度検知手段の出力に応じて変更可能とした
ものであり、ポンプにより風呂水等を給水する給水行程
において、プレ洗濯槽回転行程を実施し、そのプレ洗濯
槽回転行程を水温により時間を変更することで、その給
水の水温差に影響されずに洗剤の溶解性を向上すること
ができ、しかも、プレ洗濯槽回転行程では、洗濯兼脱水
槽と水受け槽との間の洗濯水を洗濯兼脱水槽内に上方よ
り散水しない水位に設定しているので、洗濯兼脱水槽を
回転駆動することにより溶解していない洗剤粒子が混在
した洗濯水を洗濯兼脱水槽に上方より散水することがな
く、洗濯水内の洗剤が洗濯物に付着することがなくな
り、洗剤残りを低減することができ、かつ、ポンプの動
作音に起因する騒音を低減して静音化することができ
る。さらに、洗濯兼脱水槽内に給水した後、洗い行程、
すすぎ行程の少なくとも１つの行程において、洗濯兼脱
水槽を回転駆動し洗濯兼脱水槽の外側と水受け槽との間
の洗濯水が上昇し洗濯兼脱水槽内にその上方より散水す
る洗濯槽回転行程を実施することにより、撹拌翼を回転
させることなく洗濯水またはすすぎ水を洗濯物にまんべ
んなく散水させて汚れに作用させることができ、その洗
濯槽回転行程でも温度検知手段を用いて時間を変更する
ことで、水温差による洗濯物の洗いむらを少なくするこ
とができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a washing and dewatering tub in which a stirring blade is rotatably disposed on an inner bottom portion, and a water receiver in which the washing and dewatering tub is rotatably contained. A tub, a first motor that rotationally drives the stirring blade and the washing and dewatering tub, a pump that includes a second motor and supplies bath water and the like into the washing and dewatering tub, and the first motor and Driving the second motor through the same inverter circuit,
Rinsing, control means for controlling a series of steps such as dehydration, water level detecting means for detecting the water level of the washing and dewatering tub, and temperature detecting means for detecting the water temperature in the water receiving tub, the control means When the pump is operated to supply bath water or the like, the second motor is stopped and the first motor is stopped at at least one stage of water level lower than a predetermined water level detected by the water level detection means. Rotating the washing and dewatering tub to rotate and drive the washing and dewatering tub. In the pre-washing tub rotation, the washing water between the washing and dewatering tub and the water receiving tub is washed and dewatered. The water level is set so as not to sprinkle water from above, and the time of the pre-washing tub rotation stroke can be changed according to the output of the temperature detecting means. By performing the tub rotation process and changing the time of the pre-washing tub rotation process according to the water temperature, the solubility of the detergent can be improved without being affected by the difference in the water temperature of the supply water, and the pre-washing tub rotation can be performed. In the process, the washing water between the washing and dewatering tub and the water receiving tub is set at a water level at which water is not sprinkled from above in the washing and dewatering tub. The washing water containing detergent particles is not sprinkled from above into the washing and dewatering tub, so that the detergent in the washing water does not adhere to the laundry, the amount of detergent remaining can be reduced, and the pump operates. Noise caused by sound can be reduced to reduce noise. In addition, after supplying water to the washing and dehydration tub, the washing process,
In at least one of the rinsing steps, the washing and spinning tub is rotated to drive the washing water between the outside of the washing and spinning tub and the water receiving tub to rise and to sprinkle the washing and spinning tub from above. By performing the process, the washing water or the rinsing water can be evenly sprinkled on the laundry without rotating the stirring blades, thereby acting on the dirt. By doing so, it is possible to reduce unevenness in washing of laundry due to a difference in water temperature.

【００１３】[0013]

【実施例】以下、本発明の一実施例について、図面を参
照しながら説明する。An embodiment of the present invention will be described below with reference to the drawings.

【００１４】図１に示すように、水受け槽１は、洗濯兼
脱水槽２を内包し、洗濯兼脱水槽２の底部に撹拌翼３を
回転自在に設けている。水受け槽１は、吊り棒４により
洗濯機外枠５に吊り下げている。動力切換機構６は、直
流ブラシレスモータで構成した第１のモータ７からの駆
動力を洗い、すすぎ時の撹拌行程時には減速して、例え
ば減速比６対１で撹拌翼３に伝達し、洗濯槽回転行程ま
たは脱水時には１対１で洗濯兼脱水槽２に伝達する。As shown in FIG. 1, the water receiving tub 1 includes a washing and dewatering tub 2 and a stirring blade 3 is rotatably provided at the bottom of the washing and dewatering tub 2. The water receiving tank 1 is suspended from a washing machine outer frame 5 by a suspension rod 4. The power switching mechanism 6 cleans the driving force from the first motor 7 constituted by a DC brushless motor, decelerates during the stirring process at the time of rinsing, and transmits it to the stirring blade 3 at a reduction ratio of 6 to 1, for example, At the time of the rotation process or the spin-drying, it is transmitted to the washing and spin-drying tub 2 on a one-to-one basis.

【００１５】すなわち、第１のモータ７が９００ｒ／ｍ
ｉｎで回転したとすれば、撹拌行程時には撹拌翼３の回
転数は１５０ｒ／ｍｉｎ、脱水時には洗濯兼脱水槽２の
回転数は９００ｒ／ｍｉｎで回転駆動され、洗濯槽回転
行程では、後述するが回転制御手段３２を用いて１００
ｒ／ｍｉｎに回転駆動されるようになる。That is, the first motor 7 operates at 900 r / m
If it rotates at "in", the rotation speed of the stirring blade 3 is 150 r / min during the stirring process, and the rotation speed of the washing and dewatering tub 2 is 900 r / min during the spin-drying process. 100 using the rotation control means 32
It is driven to rotate at r / min.

【００１６】カバー体８は、水受け槽１の上部に設け、
散水用の吐出部を形成するものであり、水位検知手段９
は、洗濯兼脱水槽２内の水位を検知するもので、エアー
ホース１１により水受け槽１の下部にある接続部（トリ
ップ点）１０の水圧を電気的な周波数に変換することに
より、水位を検知している。（エアーホース１１の途中
のつなぎは省略している。）給水弁１２は、洗濯兼脱水
槽２内に水を給水するものであり、排水弁１３は水受け
槽１内の洗濯水を排水するものである。The cover body 8 is provided above the water receiving tank 1,
The water level detecting means 9 forms a discharge part for watering.
Is for detecting the water level in the washing and dewatering tub 2, and converting the water pressure at a connection (trip point) 10 at the lower part of the water receiving tub 1 into an electric frequency by an air hose 11, thereby detecting the water level. Detected. (The connection in the middle of the air hose 11 is omitted.) The water supply valve 12 supplies water to the washing and dewatering tub 2, and the drain valve 13 drains the washing water in the water receiving tub 1. Things.

【００１７】ポンプ１４は、第２のモータ１５により駆
動され、風呂水を吸水するもので、洗濯機外枠５に取り
付け、先端に吸水フィルター１６を設けた給水ホース１
７を吸水口１８に連結し、吸水フィルター１６を風呂の
浴槽１９内に入れている。給水弁１２は、注水口２０を
通して洗濯兼脱水槽２に水道水を給水するとともに、風
呂水使用の場合は、洗濯兼脱水槽２内に注水すると同時
に、注水口２０に設けた呼び水吐出口２１から、呼び水
口２２に連結した呼び水パイプ２３を通り、ポンプ１４
のポンプケース内へ満水の状態に供給するようにしてい
る。The pump 14 is driven by a second motor 15 and absorbs bath water. The pump 14 is attached to the outer frame 5 of the washing machine and has a water absorption filter 16 provided at a tip thereof.
7 is connected to a water suction port 18, and a water absorption filter 16 is placed in a bath tub 19. The water supply valve 12 supplies tap water to the washing and dewatering tub 2 through the water inlet 20, and in the case of using bath water, injects water into the washing and dewatering tub 2, and at the same time, supplies water to the washing and dewatering tub 2. From the pump 14 through the priming pipe 23 connected to the priming port 22.
The pump case is filled with water.

【００１８】ポンプ１４により吸水された水は吐出口２
４より吐出し、吐出パイプ２５を通して注水ガイド２６
に連結し、注水ガイド２６に沿って洗濯兼脱水槽２内に
注水するよう構成している。The water absorbed by the pump 14 is supplied to the discharge port 2
4 and a water injection guide 26 through a discharge pipe 25.
, And water is poured into the washing and dewatering tub 2 along the water supply guide 26.

【００１９】制御装置２７は、図２に示すように、動力
切換機構６、第１のモータ７、第２のモータ１５、給水
弁１２、排水弁１３などの動作を制御し、洗濯、すす
ぎ、脱水などの一連の行程を逐次制御するマイクロコン
ピュータからなる制御手段２８等から構成される。As shown in FIG. 2, the control device 27 controls the operations of the power switching mechanism 6, the first motor 7, the second motor 15, the water supply valve 12, the drain valve 13 and the like to perform washing, rinsing, The control unit 28 includes a microcomputer for sequentially controlling a series of steps such as dehydration.

【００２０】また、温度検知手段４３は、水受け槽１の
外底部にサーミスタ等からなる温度センサ４４を取り付
け、温度センサ４４の先端部は水受け槽１の底面部に形
成された貫通穴から水受け槽１内に突出している。The temperature detecting means 43 has a temperature sensor 44 made of a thermistor or the like attached to the outer bottom of the water receiving tank 1. The tip of the temperature sensor 44 is formed through a through hole formed in the bottom of the water receiving tank 1. It protrudes into the water receiving tank 1.

【００２１】制御手段２８は、運転コース等を設定する
ための入力設定手段２９からの情報を入力して、その情
報を基に表示手段３０で表示して使用者に知らせるとと
もに、入力設定手段２９により運転開始が設定される
と、水位検知手段９や温度検知手段４３等からのデータ
を入力して負荷駆動手段３１を介して動力切換機構６や
給水弁１２、排水弁１３の動作を制御して洗濯運転を行
う。The control means 28 inputs information from an input setting means 29 for setting a driving course and the like, and displays the information on a display means 30 based on the information to inform the user. When the start of operation is set, data from the water level detecting means 9 and the temperature detecting means 43 is input to control the operations of the power switching mechanism 6, the water supply valve 12, and the drain valve 13 via the load driving means 31. To do the washing operation.

【００２２】このとき、回転制御手段３２は、第１のモ
ータ７の位置検出手段３３または第２のモータ１５の位
置検知手段３４からの情報に基づいて駆動回路３５を介
してインバータ回路３６を制御することにより、第１の
モータ７または第２のモータ１５を回転制御している。At this time, the rotation control means 32 controls the inverter circuit 36 via the drive circuit 35 based on information from the position detection means 33 of the first motor 7 or the position detection means 34 of the second motor 15. By doing so, the rotation of the first motor 7 or the second motor 15 is controlled.

【００２３】第１のモータ７は直流ブラシレスモータ
で、図示していないが、３相巻線を有するステータと、
リング上に２極の永久磁石を配設しているロータとから
構成し、ステータは３相巻線を構成する第１の巻線７
ａ、第２の巻線７ｂ、第３の巻線７ｃをスロットを設け
た鉄心に巻き付けて構成している。同様に第２のモータ
１５も３相巻線を構成する第１の巻線１５ａ、第２の巻
線１５ｂ、第３の巻線１５ｃで構成している。The first motor 7 is a DC brushless motor, not shown, and a stator having three-phase windings,
A rotor having a two-pole permanent magnet disposed on a ring, and the stator has a first winding 7 forming a three-phase winding.
a, the second winding 7b and the third winding 7c are wound around an iron core provided with slots. Similarly, the second motor 15 also includes a first winding 15a, a second winding 15b, and a third winding 15c that form a three-phase winding.

【００２４】インバータ回路３６は、パワートランジス
タ（ＩＧＢＴ）と逆導通ダイオードの並列回路からなる
スイッチング素子（スイッチング手段）で構成してい
る。第１のスイッチング素子３６ａと第２のスイッチン
グ素子３６ｂの直列回路と、第３のスイッチング素子３
６ｃと第４のスイッチング素子３６ｄの直列回路と、第
５のスイッチング素子３６ｅと第６のスイッチング素子
３６ｆの直列回路で構成し、各スイッチング素子の直列
回路は並列接続している。The inverter circuit 36 is constituted by a switching element (switching means) composed of a parallel circuit of a power transistor (IGBT) and a reverse conducting diode. A series circuit of a first switching element 36a and a second switching element 36b;
A series circuit of 6c and a fourth switching element 36d and a series circuit of a fifth switching element 36e and a sixth switching element 36f are connected in parallel.

【００２５】ここで、スイッチング素子の直列回路の両
端は入力端子で、直流電源を接続し、スイッチング素子
の直列回路を構成する２つのスイッチング素子の接続点
に、それぞれ出力端子を接続している。出力端子は、３
相巻線のＵ端子、Ｖ端子、Ｗ端子に接続し、スイッチン
グ素子の直列回路を構成する２つのスイッチング素子の
オン・オフの組合せにより、Ｕ端子、Ｖ端子、Ｗ端子を
それぞれ正電圧、零電圧、解放の３状態にする。Here, both ends of the series circuit of the switching elements are input terminals to which a DC power supply is connected, and output terminals are connected to connection points of two switching elements forming the series circuit of the switching elements. The output terminal is 3
The U terminal, the V terminal, and the W terminal are connected to a positive voltage and a zero voltage, respectively, by connecting to the U terminal, the V terminal, and the W terminal of the phase winding and turning on and off the two switching elements forming a series circuit of the switching elements. The three states of voltage and release are set.

【００２６】スイッチング素子３６ａ〜３６ｆのオン・
オフは、ホールＩＣからなる第１モータの３つの位置検
出手段３３ａ、３３ｂ、３３ｃ、または、第２モータ１
５の３つの位置検出手段３４ａ、３４ｂ、３４ｃ、から
の情報に基づいて回転制御手段３２により制御される。
位置検出手段３３ａ、３３ｂ、３３ｃと位置検出手段３
４ａ、３４ｂ、３４ｃとは電気角で１２０度の間隔でロ
ータが有する永久磁石に対向するように、ステータに配
設されている。The switching elements 36a-36f
Off means that the three position detecting means 33a, 33b, 33c of the first motor composed of the Hall IC or the second motor 1
5 is controlled by the rotation control means 32 based on information from the three position detection means 34a, 34b, 34c.
Position detecting means 33a, 33b, 33c and position detecting means 3
The stators 4a, 34b, and 34c are arranged at an electrical angle of 120 degrees from each other so as to face the permanent magnets of the rotor.

【００２７】図３に示すように、ロータが１回転する間
に、第１のモータ７の３つの位置検出手段３３ａ、３３
ｂ、３３ｃは、それぞれ図に示したようなタイミングで
パルスを出力する。回転制御手段３２は、図に示した矢
印のタイミング（３つの位置検出手段のいずれかの信号
の状態が変わったとき）を検知して、第１のモータ７の
位置検出手段３３ａ、３３ｂ、３３ｃの信号を基に、ス
イッチング素子３６ａ〜３６ｆのオン・オフ状態を変え
ていくことで、Ｕ端子、Ｖ端子、Ｗ端子を正電圧、零電
圧、解放の３状態にし、ステータの第１の巻線７ａ、第
２の巻線７ｂ、第３の巻線７ｃに通電して磁界を作り、
ロータを回転させる。As shown in FIG. 3, during one rotation of the rotor, three position detecting means 33a, 33 of the first motor 7 are provided.
Each of b and 33c outputs a pulse at the timing shown in the figure. The rotation control means 32 detects the timing of the arrow shown in the figure (when the state of any one of the three position detection means changes), and detects the position detection means 33a, 33b, 33c of the first motor 7. By changing the ON / OFF state of the switching elements 36a to 36f based on the signals of the above, the U terminal, V terminal, and W terminal are brought into three states of positive voltage, zero voltage, and release, and the first winding of the stator is performed. Energizing the wire 7a, the second winding 7b, and the third winding 7c to create a magnetic field,
Rotate the rotor.

【００２８】また、スイッチング素子３６ａ、３６ｃ、
３６ｅはそれぞれパルス幅変調（ＰＷＭ）制御され、例
えば、繰り返し周波数１０ｋＨｚでハイ、ローの通電比
を制御することで、ロータの回転数を制御するようにし
てあり、回転制御手段３２は、第１のモータ７の３つの
位置検出手段３３ａ、３３ｂ、３３ｃのいずれかの信号
の状態が変わるたびにその周期を検出し、その周期より
ロータの回転数を算出して、設定回転数になるようにス
イッチング素子３６ａ、３６ｃ、３６ｅをＰＷＭ制御す
る。また、第２のモータ１５も上記と同様に制御され
る。The switching elements 36a, 36c,
Each of 36e is controlled by pulse width modulation (PWM), for example, by controlling the high / low duty ratio at a repetition frequency of 10 kHz to control the number of rotations of the rotor. Each time the state of any one of the three position detection means 33a, 33b, 33c of the motor 7 changes, the cycle is detected, the rotation speed of the rotor is calculated from the cycle, and switching is performed so that the rotation speed becomes the set rotation speed. The elements 36a, 36c and 36e are PWM-controlled. Also, the second motor 15 is controlled in the same manner as described above.

【００２９】第１のモータ７または第２のモータ１５の
どちらかを制御するかは制御手段２８によりスイッチ回
路３７で切り換えられる。Whether the first motor 7 or the second motor 15 is controlled is switched by the control circuit 28 by the switch circuit 37.

【００３０】抵抗３８は電流を検知するもので、抵抗３
８の両端電圧でインバータ３６の入力電流値を検知する
ものとする。商用電源３９は、ダイオードブリッジ４
０、チョークコイル４１、平滑用コンデンサ４２からな
る直流電源変換装置を介して、インバータ３６に接続し
ている。ただし、これは一例であり、第１のモータ７の
構成、インバータ３６の構成等は、これに限定されるも
のではない。The resistor 38 detects current, and the resistor 3
8, the input current value of the inverter 36 is detected. The commercial power supply 39 is a diode bridge 4
0, a choke coil 41 and a smoothing capacitor 42, which are connected to an inverter 36 via a DC power converter. However, this is only an example, and the configuration of the first motor 7, the configuration of the inverter 36, and the like are not limited thereto.

【００３１】回転制御手段３２は、図４に示すように、
第１のモータ７の位置検出手段３３、または第２のモー
タ１５の位置検知手段３４からの信号を入力して第１の
モータ７または第２のモータ１５の回転数を検知する回
転数検知手段３２ａと、第１のモータ７または第２のモ
ータ１５の回転数を設定する回転数設定手段３２ｂと、
回転数設定手段３２ｂと回転数検知手段３２ａで検知さ
れた回転数とを比較する回転数比較手段３２ｃと、回転
数の変化量を検知する回転数変化量検知手段３２ｄと、
回転数比較手段３２ｃと回転数変化量検知手段３２ｄか
らの入力に基づき、第１のモータ７または第２のモータ
１５の回転数を設定回転数に近づけるためにスイッチン
グ素子３６ａ、３６ｃ、３６ｅの通電比の操作量を決定
する操作量決定手段と３２ｅと、操作量決定手段と３２
ｅにより操作された後のスイッチング素子３６ａ、３６
ｃ、３６ｅの通電比を設定し駆動回路３５に出力する通
電比設定手段３２ｆと、第１のモータ７の起動からの経
過時間に応じて徐々に増加したスイッチング素子３６
ａ、３６ｃ、３６ｅの通電比を記憶し駆動回路３５に出
力する通電比記憶手段３２ｇから構成されている。The rotation control means 32, as shown in FIG.
Rotational speed detecting means for detecting a rotational speed of the first motor 7 or the second motor 15 by inputting a signal from the position detecting means 33 of the first motor 7 or the position detecting means 34 of the second motor 15 A rotation speed setting means 32b for setting the rotation speed of the first motor 7 or the second motor 15;
A rotation speed comparison unit 32c that compares the rotation speed detected by the rotation speed setting unit 32b and the rotation speed detection unit 32a, a rotation speed change amount detection unit 32d that detects a change amount of the rotation speed,
Based on the input from the rotation speed comparison means 32c and the rotation speed change amount detection means 32d, energization of the switching elements 36a, 36c, 36e to make the rotation speed of the first motor 7 or the second motor 15 approach the set rotation speed. An operation amount determining means for determining an operation amount of the ratio;
e after switching elements 36a, 36
a power ratio setting means 32f for setting the power ratio of the first and second motors 36 and 36e and outputting the same to the drive circuit 35; and a switching element 36 gradually increased in accordance with the time elapsed from the start of the first motor 7.
It comprises a current-ratio storing means 32g for storing the current-ratio of the currents a, 36c and 36e and outputting the current to the drive circuit 35.

【００３２】回転制御手段３２では、第１のモータ７ま
たは第２のモータ１５の起動時に、第１のモータ７の３
つの位置検出手段３３ａ、３３ｂ、３３ｃまたは第２の
モータ１５の３つの位置検出手段３４ａ、３４ｂ、３４
ｃのいずれかの信号の状態が変わる回数が３回まで、す
なわち第１のモータ７または第２のモータ１５が１／２
回転するまでは、通電比記憶手段３２ｇの出力信号で、
それ以後は通電比設定手段３２ｆの出力信号で駆動回路
３５を駆動することにより、スイッチング素子３６ａ、
３６ｃ、３６ｅの通電比を制御するようにしている。そ
のため、回転制御手段３２により、撹拌翼３の回転数
と、洗濯兼脱水槽２の回転数を自由に設定することも可
能である。When the first motor 7 or the second motor 15 is started, the rotation control means 32
Three position detecting means 33a, 33b, 33c or three position detecting means 34a, 34b, 34 of the second motor 15
The number of times the state of any one of the signals c changes is up to three times, that is, the first motor 7 or the second motor 15
Until the rotation, the output signal of the duty ratio storage means 32g,
Thereafter, by driving the drive circuit 35 with the output signal of the duty ratio setting means 32f, the switching elements 36a,
The energization ratio of 36c and 36e is controlled. Therefore, the rotation speed of the stirring blade 3 and the rotation speed of the washing and dewatering tub 2 can be freely set by the rotation control means 32.

【００３３】図５は、洗濯時の第１のモータ７の回転の
様子を示しており、第１のモータ７が９００ｒ／ｍｉｎ
になるように、すなわち撹拌翼３が１５０ｒ／ｍｉｎに
なるように１．６秒オン１秒オフで、正転反転を繰り返
すようにしている。FIG. 5 shows the state of rotation of the first motor 7 at the time of washing, where the first motor 7 is operated at 900 r / min.
, That is, 1.6 seconds on and 1 second off so that the stirring blade 3 becomes 150 r / min.

【００３４】また、制御手段２８は、ポンプ１４を動作
させて風呂水等を供給する際に、水位検知手段９によっ
て検知される所定水位よりも低い少なくとも１段階の水
位において、第２のモータ１５を停止させるとともに第
１のモータ７を回転させて洗濯兼脱水槽２を回転駆動す
るプレ洗濯槽回転行程を実施し、プレ洗濯槽回転行程で
は、洗濯兼脱水槽２と水受け槽１との間の洗濯水を洗濯
兼脱水槽２内に上方より散水しない水位に設定し、プレ
洗濯槽回転行程の時間を温度検知手段４３の出力に応じ
て変更可能としている。When the pump 14 is operated to supply bath water or the like, the control means 28 controls the second motor 15 at least in one step lower than the predetermined water level detected by the water level detection means 9. Is stopped and the first motor 7 is rotated to rotate the washing and dewatering tub 2 to perform a pre-washing tub rotation process. In the pre-washing tub rotation process, the washing and dewatering tub 2 and the water receiving tub 1 are connected to each other. The washing water in between is set to a water level at which water is not sprinkled from above in the washing / dewatering tub 2, and the time of the pre-washing tub rotation stroke can be changed according to the output of the temperature detecting means 43.

【００３５】さらに、制御手段２８は、洗濯兼脱水槽２
内に給水した後、洗い行程、すすぎ行程の少なくとも１
つの行程において、洗濯兼脱水槽２を回転駆動させ洗濯
兼脱水槽２の外側と水受け槽１との間の洗濯水が上昇
し、洗濯兼脱水槽２内に上方より散水する洗濯槽回転行
程を実施するよう構成している。Further, the control means 28 controls the washing and dewatering tub 2
After water is supplied, at least one of the washing and rinsing steps
In one process, the washing and spin-drying tub 2 is driven to rotate so that the washing water between the outside of the washing and spin-drying tub 2 and the water receiving tub 1 rises, and the washing and spin-drying tub 2 is sprinkled from above. Is implemented.

【００３６】上記構成において図６および図７を参照し
ながら動作を説明する。洗濯兼脱水槽２に洗濯物と洗剤
を投入した後、給水弁１２を動作させて水道水を呼び水
口２２よりポンプ１４に給水、いわゆる呼び水を行い
（図７のステップ５１）、第２のモータ１５を駆動して
ポンプ１４を動作させ（ステップ５２）、ポンプ１４に
より洗濯兼脱水槽２内に給水する。なお、ステップ５１
の呼び水は、連続して使用する場合など、ポンプ１４の
ポンプケース内が満水状態のときは行わない。The operation of the above configuration will be described with reference to FIGS. After the laundry and the detergent are put into the washing and spin-drying tub 2, the water supply valve 12 is operated to supply tap water to the pump 14 from the priming port 22 (so-called priming) (step 51 in FIG. 7). The pump 14 is operated by driving the pump 15 (step 52), and water is supplied into the washing and dewatering tub 2 by the pump 14. Step 51
Is not performed when the inside of the pump case of the pump 14 is full, such as when the pump is used continuously.

【００３７】ポンプ１４により洗濯兼脱水槽２内に給水
しているとき、制御手段２８は、水位検知手段９により
検知した水位が所定水位よりも低い第１の水位Ｈ1（例
えば、水柱５０ｍｍ）において、第２のモータ１５を停
止させるとともに、第１のモータ７を回転させる行程を
実施する。すなわち、図６（ａ）に示すように、洗濯兼
脱水槽２内の水位が第１の水位Ｈ1（例えば、水柱５０
ｍｍ）に達する時刻ｔ1までは、図６（ｂ）に示すよう
に、洗濯兼脱水槽２の回転数を０ｒ／ｍｉｎとしてお
く。When water is supplied into the washing and dewatering tub 2 by the pump 14, the control means 28 controls the first water level H 1 (for example, 50 mm water column) whose water level detected by the water level detection means 9 is lower than a predetermined water level. , A step of stopping the second motor 15 and rotating the first motor 7 is performed. That is, as shown in FIG. 6A, the water level in the washing and dewatering tub 2 is equal to the first water level H 1 (for example, the water column 50).
until the time t 1 to reach mm), as shown in FIG. 6 (b), keep the 0r / min rotation speed of the washing and dewatering tank 2.

【００３８】制御手段２８は、水位検知手段９により第
１の水位Ｈ1を検知（ステップ５４）した時刻ｔ1以降、
時刻ｔ2までの間（例えば６０秒間）第２のモータ１５
を停止してポンプ１４を停止（ステップ５５）し、第１
のモータ７を駆動して洗濯兼脱水槽２を第１の設定回転
数Ｎ1（例えば、１００ｒ／ｍｉｎ）で回転させるプレ
洗濯槽回転行程を実施し、設定時間後第１のモータ７を
停止させる（ステップ５６）。After time t 1 when the first water level H 1 is detected by the water level detection means 9 (step 54), the control means 28
Until the time t 2 (for example, 60 seconds), the second motor 15
Is stopped to stop the pump 14 (step 55), and the first
The motor 7 is driven to rotate the washing and dewatering tub 2 at a first set rotation speed N 1 (for example, 100 r / min), and the pre-washing tub rotation process is performed. After the set time, the first motor 7 is stopped. (Step 56).

【００３９】ここで、第１の水位Ｈ1を検知（ステップ
５４）する時刻ｔ1までに水温を検知する温度検知（ス
テップ５３）を実行し、水温が例えば２０℃以上であれ
ば、図６の実線で示すように、時刻ｔ1からｔ2まで（例
えば、６０秒間）のプレ洗濯槽回転行程を実施し、水温
が例えば２０℃以下であれば、図６の一点鎖線で示すよ
うに、時刻ｔ1からｔ2’まで（例えば、１２０秒間）の
プレ洗濯槽回転行程を実施する。要は、水温が低いほど
プレ洗濯槽回転行程の時間を延ばすように設定してい
る。また、複数の設定域を設けて複数段階にプレ洗濯槽
回転行程の時間を設定してもよい。[0039] Here, the first water level H 1 performs detection temperature detection for detecting the water temperature by the time t 1 (Step 54) (step 53), if the water temperature is for example 20 ° C. or higher, 6 of as shown by the solid line, from time t 1 to t 2 (e.g., 60 seconds) was performed pre tub rotation stroke, if the water temperature is for example 20 ° C. or less, as indicated by a chain line in FIG 6, The pre-washing tub rotation process is performed from time t 1 to t 2 ′ (for example, for 120 seconds). In short, the lower the water temperature, the longer the pre-washing tub rotation stroke time is set. Further, a plurality of setting areas may be provided to set the time of the pre-washing tub rotation stroke in a plurality of stages.

【００４０】さらに、ステップ５７にて、第２のモータ
１５を駆動してポンプ１４を駆動し、所定水位Ｈｓまで
給水し（ステップ５８）、所定水位Ｈｓを検知した時刻
ｔｓで第２のモータ１５をオフし、ポンプ１４による給
水行程を終了する（ステップ５９）。その後、洗濯兼脱
水槽２を回転数Ｎｓ（例えば１５０ｒ／ｍｉｎ）で回転
させる洗い時の洗濯槽回転行程を実施する。Further, in step 57, the second motor 15 is driven to drive the pump 14 to supply water to a predetermined water level Hs (step 58). At a time ts when the predetermined water level Hs is detected, the second motor 15 is driven. Is turned off, and the water supply process by the pump 14 is completed (step 59). After that, a washing tub rotation process at the time of washing in which the washing and dewatering tub 2 is rotated at a rotation speed Ns (for example, 150 r / min) is performed.

【００４１】このように本実施例では、第１のモータ７
および第２のモータ１５をインバータ回路３６により駆
動し、インバータ回路３６を制御手段２８により制御
し、第２のモータ１５を駆動してポンプ１４を駆動させ
た場合に、所定水位より低い第１の水位Ｈ1にて第２の
モータ１５を停止し、洗濯兼脱水槽２を第１の設定回転
数Ｎ1で回転させるプレ洗濯槽回転行程を実施すること
により、図８に示すように、洗濯兼脱水槽２のゆるやか
な回転に伴い、洗濯水にゆるやかな遠心力が働いて中央
部が少し下降して洗濯水の循環を促進し、投入された洗
剤の溶解性を向上することができ、さらに、水温により
プレ洗濯槽回転行程の時間を変更することにより水温差
による溶解性を維持することで、以後の行程での洗浄性
能の向上に寄与することができる。As described above, in the present embodiment, the first motor 7
When the second motor 15 is driven by the inverter circuit 36, the inverter circuit 36 is controlled by the control means 28, and the second motor 15 is driven to drive the pump 14, the first by the second motor 15 is stopped at the water level H 1, to implement the pre-washing tub rotating step of rotating the washing and dewatering tank 2 at the first set rotational speed N 1, as shown in FIG. 8, the washing Along with the gentle rotation of the spin-drying tub 2, a gentle centrifugal force acts on the washing water to lower the center part a little and promote the circulation of the washing water, so that the solubility of the inputted detergent can be improved, Furthermore, by changing the time of the pre-washing tub rotation process according to the water temperature and maintaining the solubility due to the water temperature difference, it is possible to contribute to the improvement of the cleaning performance in the subsequent processes.

【００４２】また、プレ洗濯槽回転行程では、洗濯兼脱
水槽２と水受け槽１との間の洗濯水を洗濯兼脱水槽２内
に上方より散水しない水位に設定しているので、洗濯水
が洗濯兼脱水槽２の上部に達することがなく、洗濯兼脱
水槽２を回転駆動することにより溶解していない洗剤粒
子が混在した洗濯水を洗濯兼脱水槽２内に上方より散水
することがなく、洗濯水内の溶解していない洗剤粒子が
洗濯物に付着することがなくなって、洗剤残りを低減す
ることができる。In the pre-washing tub rotation process, the washing water between the washing and dewatering tub 2 and the water receiving tub 1 is set at a water level at which water is not sprinkled into the washing and dewatering tub 2 from above. Does not reach the upper portion of the washing and dewatering tub 2, and by rotating the washing and dewatering tub 2, the washing water mixed with the undissolved detergent particles can be sprinkled into the washing and dewatering tub 2 from above. As a result, the undissolved detergent particles in the washing water do not adhere to the laundry, so that the detergent residue can be reduced.

【００４３】また、洗濯兼脱水槽２内に給水した後、洗
い行程、すすぎ行程の少なくとも１つの行程において、
洗濯兼脱水槽２を回転駆動し洗濯兼脱水槽２の外側と水
受け槽１との間の洗濯水が上昇し洗濯兼脱水槽２内にそ
の上方より散水する洗濯槽回転行程を実施することによ
り、洗濯水を洗濯物にまんべんなく散水させて汚れに作
用させることができ、洗濯物の洗いむらを少なくするこ
とができる。After water is supplied into the washing and dewatering tub 2, at least one of a washing step and a rinsing step
The washing and spinning tub 2 is driven to rotate, so that the washing water between the outside of the washing and spinning tub 2 and the water receiving tub 1 rises and the washing and spinning tub 2 is sprinkled from above the washing and spinning tub 2. Thereby, the washing water can be evenly sprinkled on the laundry to act on the dirt, and the washing unevenness of the laundry can be reduced.

【００４４】また、第２のモータ１５をインバータ回路
３６を介して駆動させることで静音化ができる。また、
洗濯物が十分に湿って布かさが小さくなった状態で、は
じめて洗濯兼脱水槽２を第１の設定回転数Ｎ1に上げる
ので、洗濯物と内蓋等の摩擦力が少なくなり、洗濯物の
傷みを少なくすることができる。By driving the second motor 15 via the inverter circuit 36, noise can be reduced. Also,
The laundry and dewatering tub 2 is first raised to the first set rotation speed N1 in a state where the laundry is sufficiently wet and the cloth is small, so that the frictional force between the laundry and the inner lid is reduced, and the laundry is washed. Can be reduced.

【００４５】なお、本実施例では、ポンプ１４を動作さ
せて風呂水等を供給する際に、所定水位よりも低い第１
の水位Ｈ1において、第２のモータ１５を停止させると
ともに、第１のモータ７を回転させるように構成してい
るが、所定水位Ｈｓより低い複数の水位において、第２
のモータ１５を停止させるとともに、第１のモータ７を
回転させるようにしてもよく、同様の作用効果を得るこ
とができる。In this embodiment, when the pump 14 is operated to supply bath water or the like, the first water level lower than the predetermined water level is set.
In the water level H 1, stops the second motor 15, but is configured to rotate the first motor 7, a plurality of water level lower than a predetermined water level Hs, second
The motor 15 may be stopped and the first motor 7 may be rotated, so that the same operation and effect can be obtained.

【００４６】また、洗濯兼脱水槽２内に給水した後、洗
い行程、すすぎ行程の少なくとも１つの行程において、
洗濯兼脱水槽２を回転駆動する洗濯槽回転行程を実施す
るようにしてもよい。After water is supplied into the washing and dewatering tub 2, at least one of the washing step and the rinsing step
A washing tub rotating step of rotating and driving the washing and dewatering tub 2 may be performed.

【００４７】[0047]

【発明の効果】以上のように本発明の請求項１に記載の
発明によれば、撹拌翼を内底部に回転自在に配設した洗
濯兼脱水槽と、この洗濯兼脱水槽を回転自在に内包した
水受け槽と、前記撹拌翼と洗濯兼脱水槽を回転駆動する
第１のモータと、第２のモータを具備し前記洗濯兼脱水
槽内に風呂水等を供給するポンプと、前記第１のモータ
および第２のモータを同じインバータ回路を介し駆動
し、洗濯、すすぎ、脱水等の一連の行程を制御する制御
手段と、前記洗濯兼脱水槽の水位を検知する水位検知手
段と、前記水受け槽内の水温を検知する温度検知手段と
を備え、前記制御手段は、前記ポンプを動作させて風呂
水等を供給する際に、前記水位検知手段によって検知さ
れる所定水位よりも低い少なくとも１段階の水位におい
て、第２のモータを停止させるとともに前記第１のモー
タを回転させて前記洗濯兼脱水槽を回転駆動するプレ洗
濯槽回転行程を実施し、前記プレ洗濯槽回転行程では、
前記洗濯兼脱水槽と水受け槽との間の洗濯水を洗濯兼脱
水槽内に上方より散水しない水位に設定し、前記プレ洗
濯槽回転行程の時間を温度検知手段の出力に応じて変更
可能としたから、ポンプにより風呂水等を給水する給水
行程において、プレ洗濯槽回転行程を実施し、そのプレ
洗濯槽回転行程を水温により時間を変更することで、そ
の給水の水温差に影響されずに洗剤の溶解性を向上する
ことができ、しかも、プレ洗濯槽回転行程では、洗濯兼
脱水槽と水受け槽との間の洗濯水を洗濯兼脱水槽内に上
方より散水しない水位に設定しているので、洗濯兼脱水
槽を回転駆動することにより溶解していない洗剤粒子が
混在した洗濯水を洗濯兼脱水槽に上方より散水すること
がなく、洗濯水内の洗剤が洗濯物に付着することがなく
なり、洗剤残りを低減することができ、かつ、ポンプの
動作音に起因する騒音を低減して静音化することができ
る。さらに、洗濯兼脱水槽内に給水した後、洗い行程、
すすぎ行程の少なくとも１つの行程において、洗濯兼脱
水槽を回転駆動し洗濯兼脱水槽の外側と水受け槽との間
の洗濯水が上昇し洗濯兼脱水槽内にその上方より散水す
る洗濯槽回転行程を実施することにより、撹拌翼を回転
させることなく洗濯水またはすすぎ水を洗濯物にまんべ
んなく散水させて汚れに作用させることができ、その洗
濯槽回転行程でも温度検知手段を用いて時間を変更する
ことで、水温差による洗濯物の洗いむらを少なくするこ
とができる。As described above, according to the first aspect of the present invention, the washing and dewatering tub in which the stirring blade is rotatably disposed on the inner bottom portion, and the washing and dewatering tub are rotatably provided. An enclosed water receiving tank, a first motor that rotationally drives the stirring blade and the washing and dewatering tub, and a pump that includes a second motor and supplies bath water and the like into the washing and dewatering tub; A control means for driving a first motor and a second motor through the same inverter circuit to control a series of steps such as washing, rinsing, and dehydration; a water level detecting means for detecting a water level of the washing and dewatering tub; Temperature control means for detecting a water temperature in the water receiving tank, the control means, when operating the pump to supply bath water or the like, at least lower than a predetermined water level detected by the water level detection means At one stage water level, the second motor In the first motor is rotated to implement the pre-washing tub rotation process for rotating the washing and dewatering tank, the pre-washing tub rotation process causes locked,
The washing water between the washing and dewatering tub and the water receiving tub is set to a water level at which water is not sprinkled from above in the washing and dewatering tub, and the time of the pre-washing tub rotation stroke can be changed according to the output of the temperature detecting means. Therefore, in the water supply process of supplying bath water and the like by the pump, the pre-washing tub rotation process is performed, and the time of the pre-washing tub rotation process is changed according to the water temperature, so that the water temperature difference of the supply water is not affected. The washing water between the washing and dewatering tub and the water receiving tub is set to a level that does not sprinkle the washing water between the washing and dewatering tub from above during the pre-washing tub rotation process. Since the washing and dewatering tub is rotationally driven, the washing water mixed with undissolved detergent particles is not sprinkled from above into the washing and dewatering tub, and the detergent in the washing water adheres to the laundry. No more detergent residue It can be reduced, and may be quieter by reducing the noise caused by the operation sound of the pump. In addition, after supplying water to the washing and dehydration tub, the washing process,
In at least one of the rinsing steps, the washing and spinning tub is rotated to drive the washing water between the outside of the washing and spinning tub and the water receiving tub to rise and to sprinkle the washing and spinning tub from above. By carrying out the process, the washing water or the rinsing water can be evenly sprinkled on the laundry without rotating the agitating blades, and can act on the dirt. By doing so, it is possible to reduce unevenness in washing of laundry due to a difference in water temperature.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の一実施例の洗濯機の縦断面図FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment of the present invention.

【図２】同洗濯機の一部ブロック化した回路図FIG. 2 is a circuit diagram of the washing machine in a partially blocked state;

【図３】同洗濯機のインバータ回路の動作を示すタイミ
ングチャートFIG. 3 is a timing chart showing the operation of the inverter circuit of the washing machine.

【図４】同洗濯機の回転制御手段のブロック回路図FIG. 4 is a block circuit diagram of a rotation control unit of the washing machine.

【図５】同洗濯機の洗濯時のモータの回転状態を示すタ
イミングチャートFIG. 5 is a timing chart showing a rotation state of a motor during washing of the washing machine.

【図６】同洗濯機の要部動作タイミングチャートFIG. 6 is an operation timing chart of main parts of the washing machine.

【図７】同洗濯機の要部動作フローチャートFIG. 7 is an operation flowchart of a main part of the washing machine.

【図８】同洗濯機の動作状態を示す縦断面図FIG. 8 is a longitudinal sectional view showing an operation state of the washing machine.

【図９】従来の洗濯機の縦断面図FIG. 9 is a longitudinal sectional view of a conventional washing machine.

【符号の説明】[Explanation of symbols]

１ 水受け槽 ２ 洗濯兼脱水槽 ３ 撹拌翼 ７ 第１のモータ ９ 水位検知手段 １４ ポンプ １５ 第２のモータ ２８ 制御手段 ３６ インバータ回路 ４３ 温度検知手段 DESCRIPTION OF SYMBOLS 1 Water receiving tank 2 Washing and dewatering tank 3 Stirrer blade 7 1st motor 9 Water level detecting means 14 Pump 15 2nd motor 28 Control means 36 Inverter circuit 43 Temperature detecting means

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 撹拌翼を内底部に回転自在に配設した洗
濯兼脱水槽と、この洗濯兼脱水槽を回転自在に内包した
水受け槽と、前記撹拌翼と洗濯兼脱水槽を回転駆動する
第１のモータと、第２のモータを具備し前記洗濯兼脱水
槽内に風呂水等を供給するポンプと、前記第１のモータ
および第２のモータを同じインバータ回路を介し駆動
し、洗濯、すすぎ、脱水等の一連の行程を制御する制御
手段と、前記洗濯兼脱水槽の水位を検知する水位検知手
段と、前記水受け槽内の水温を検知する温度検知手段と
を備え、前記制御手段は、前記ポンプを動作させて風呂
水等を供給する際に、前記水位検知手段によって検知さ
れる所定水位よりも低い少なくとも１段階の水位におい
て、第２のモータを停止させるとともに前記第１のモー
タを回転させて前記洗濯兼脱水槽を回転駆動するプレ洗
濯槽回転行程を実施し、前記プレ洗濯槽回転行程では、
前記洗濯兼脱水槽と水受け槽との間の洗濯水を洗濯兼脱
水槽内に上方より散水しない水位に設定し、前記プレ洗
濯槽回転行程の時間を温度検知手段の出力に応じて変更
可能とした洗濯機。1. A washing and dewatering tub having a stirring blade rotatably disposed at an inner bottom thereof, a water receiving tub having the washing and dewatering tub rotatably contained therein, and a rotary drive of the stirring wing and the washing and dewatering tub. A first motor, a pump provided with a second motor and supplying bath water and the like into the washing and dewatering tub, and the first motor and the second motor are driven through the same inverter circuit to perform washing. Control means for controlling a series of steps such as rinsing and dewatering, a water level detecting means for detecting a water level of the washing and dewatering tub, and a temperature detecting means for detecting a water temperature in the water receiving tub. The means, when operating the pump to supply bath water or the like, stops the second motor and stops the first motor in at least one stage of water level lower than the predetermined water level detected by the water level detection means. Rotate the motor to wash Carry out a pre-washing tank rotation step of rotating and driving the rinsing and dewatering tank, and in the pre-washing tank rotation step,
The washing water between the washing and dewatering tub and the water receiving tub is set to a water level at which water is not sprinkled from above in the washing and dewatering tub, and the time of the pre-washing tub rotation stroke can be changed according to the output of the temperature detecting means. Washing machine.
JP2000127449A 2000-04-27 2000-04-27 Washing machine Pending JP2001300182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000127449A JP2001300182A (en) 2000-04-27 2000-04-27 Washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000127449A JP2001300182A (en) 2000-04-27 2000-04-27 Washing machine

Publications (1)

Publication Number Publication Date
JP2001300182A true JP2001300182A (en) 2001-10-30

Family

ID=18637040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000127449A Pending JP2001300182A (en) 2000-04-27 2000-04-27 Washing machine

Country Status (1)

Country Link
JP (1) JP2001300182A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007236983A (en) * 2007-06-26 2007-09-20 Hitachi Appliances Inc Electric washing machine
CN103334260A (en) * 2013-06-26 2013-10-02 无锡小天鹅股份有限公司 Washing machine and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007236983A (en) * 2007-06-26 2007-09-20 Hitachi Appliances Inc Electric washing machine
CN103334260A (en) * 2013-06-26 2013-10-02 无锡小天鹅股份有限公司 Washing machine and control method thereof

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