JP2018038699A - Washing machine - Google Patents

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JP2018038699A
JP2018038699A JP2016176090A JP2016176090A JP2018038699A JP 2018038699 A JP2018038699 A JP 2018038699A JP 2016176090 A JP2016176090 A JP 2016176090A JP 2016176090 A JP2016176090 A JP 2016176090A JP 2018038699 A JP2018038699 A JP 2018038699A
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washing
water
temperature
water tank
tank
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堀部 泰之
Yasuyuki Horibe
泰之 堀部
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of suppressing damages to laundry and an electric power consumption and exhibiting high washing performance.SOLUTION: The washing machine comprises: a water tub 2 for storing washing water; a rotary tub 4 arranged in the water tub 2 in a rotatable manner; a motor 9 for driving the rotary tub 4; a drain port 17 provided at the lower part of the water tub 2; a heater 3a provided at the lower part of the water tub 2 for heating washing water; temperature detection means for detecting a washing water temperature in the water tub 2; and control means 32 for controlling a series of washing operations including washing, rinsing and dewatering. The motor 9 is set to have an improved operation rate so that an agitation force becomes stronger after the temperature detection means detects a set temperature than an agitation force after washing water is heated with the heater 3a until the temperature detection means detects the set temperature in a washing process.SELECTED DRAWING: Figure 2

Description

本発明は、洗濯物等の温水洗濯を行う洗濯機に関する。   The present invention relates to a washing machine that performs warm water washing of laundry or the like.

従来、洗濯水を加熱する機能を設けた洗濯機は、所定温度に洗濯水を加熱することで洗剤に含まれる酵素の効能を最大限に発揮し、効果的な洗浄力を得たり、洗濯物に付着した細菌類を死滅させることができ、非常に重宝されている。   Conventionally, a washing machine provided with a function for heating washing water exhibits the effectiveness of the enzyme contained in the detergent by heating the washing water to a predetermined temperature to obtain an effective washing power, or laundry. Bacteria attached to can be killed and is very useful.

また、温水洗濯を実現するため、加熱手段のON/OFFを繰り返すことで、洗濯水を所定温度幅に保つのが一般的である。即ち、第一の所定温度を検知すると、加熱手段をOFFし、第二の所定温度まで温度が下がったことを検知すると、加熱手段をONする動作を繰り返す。   In order to realize warm water washing, it is common to keep the washing water in a predetermined temperature range by repeatedly turning on and off the heating means. That is, when the first predetermined temperature is detected, the heating unit is turned off, and when it is detected that the temperature has decreased to the second predetermined temperature, the operation of turning on the heating unit is repeated.

ここで、加熱手段をONする工程の攪拌力よりも、加熱手段をOFFする工程の攪拌力を弱める事で、洗濯物の傷みやしわの発生を抑制し、無駄な消費電力を抑えるようにしている(例えば特許文献1参照)。   Here, by reducing the stirring force in the step of turning off the heating means rather than the stirring force in the step of turning on the heating means, the generation of scratches and wrinkles on the laundry is suppressed, and unnecessary power consumption is suppressed. (For example, refer to Patent Document 1).

特開2008−289680号公報JP 2008-289680 A

しかしながら、前記従来の構成では、運転開始から第一の所定温度を検知するまでは一定の攪拌力を洗濯物に与えるため、洗濯物への傷みやしわの発生が起こるだけでなく、無用に消費電力を浪費している場合があった。即ち、冬場など設置場所の水道から供給される水道水の水温が極端に低い場合、洗剤に含まれる酵素の効能が発揮する温度や、洗濯物に付着した人体由来の皮脂成分が溶け出す温度に到達するまで多くの時間を要するが、所定の温度に到達するまでは、余り高い洗浄力を得られない割に、不必要に洗濯物に攪拌力を与えることになるという課題があった。   However, in the conventional configuration, since a constant stirring force is applied to the laundry from the start of operation until the first predetermined temperature is detected, the laundry is not only damaged and wrinkled, but is also consumed unnecessarily. In some cases, power was wasted. In other words, when the temperature of tap water supplied from the water at the installation location such as winter is extremely low, the temperature is such that the enzyme effect contained in the detergent is exerted, or the sebum component derived from the human body adhering to the laundry melts. Although it takes a lot of time to reach the predetermined temperature, there is a problem in that the laundry is unnecessarily given a stirring force even though a high cleaning power cannot be obtained until the predetermined temperature is reached.

本発明は、前記従来の課題を解決するもので、洗濯物の傷みや消費電力を抑制し、高い洗浄力を得ることができる、洗濯機を提供することを目的とする。   The present invention solves the above-described conventional problems, and an object of the present invention is to provide a washing machine that can suppress damage and power consumption of the laundry and obtain high cleaning power.

前記従来の課題を解決するために、本発明の洗濯機は、洗濯水を溜める水槽と、前記水槽内に回転可能に配設された回転槽と、前記回転槽を駆動するモータと、前記水槽の下部に設けられた排水口と、前記水槽の下部に設けられた洗濯水加熱用のヒータと、前記水槽内の洗濯水温を検知する温度検知手段と、洗い、すすぎ、脱水の一連の洗濯動作を制御する制御手段と、を備え、洗濯工程で前記ヒータにより洗濯水を加熱した後、前記温度検知手段が設定温度を検知するまでの攪拌力に比べて、設定温度を検知した後の攪拌力が強まるように、前記モータの稼働率を高めるようにしたものである。   In order to solve the conventional problems, a washing machine of the present invention includes a water tank for storing washing water, a rotating tank rotatably disposed in the water tank, a motor for driving the rotating tank, and the water tank. A drain outlet provided in the lower part of the water tank, a heater for heating the washing water provided in the lower part of the water tank, a temperature detecting means for detecting the temperature of the washing water in the water tank, and a series of washing operations including washing, rinsing and dehydration And a stirring force after detecting the set temperature compared to the stirring force until the temperature detecting means detects the set temperature after the washing water is heated by the heater in the washing step. The operating rate of the motor is increased so as to strengthen the motor.

このような構成によって、洗濯物の傷みを抑制し、無駄な消費電力を抑えつつ、高い洗浄力を得ることができる。   With such a configuration, it is possible to obtain high cleaning power while suppressing damage to the laundry and suppressing wasteful power consumption.

本発明の洗濯機は、洗濯物の傷みを抑制し、無駄な消費電力を抑えつつ、高い洗浄力を得ることができる。   The washing machine of the present invention can obtain a high detergency while suppressing the damage to the laundry and suppressing wasteful power consumption.

本発明の実施の形態1における洗濯機の概略構造を示す断面図Sectional drawing which shows schematic structure of the washing machine in Embodiment 1 of this invention. 同洗濯機のつけおき洗い工程の動作を示すタイムチャートTime chart showing the operation of the washing process of the washing machine

第1の発明は、洗濯水を溜める水槽と、前記水槽内に回転可能に配設された回転槽と、前記回転槽を駆動するモータと、前記水槽の下部に設けられた排水口と、前記水槽の下部に設けられた洗濯水加熱用のヒータと、前記水槽内の洗濯水温を検知する温度検知手段と、洗い、すすぎ、脱水の一連の洗濯動作を制御する制御手段と、を備え、洗濯工程で前記ヒータにより洗濯水を加熱した後、前記温度検知手段が設定温度を検知するまでの攪拌力に比べて、設定温度を検知した後の攪拌力が強まるように、前記モータの稼働率を高めるようにした洗濯機である。   According to a first aspect of the present invention, there is provided a water tank for storing washing water, a rotating tank rotatably disposed in the water tank, a motor for driving the rotating tank, a drain outlet provided at a lower portion of the water tank, Washing water heating heater provided at the lower part of the water tank, temperature detection means for detecting the temperature of the washing water in the water tank, and control means for controlling a series of washing, rinsing and dehydration washing operations, After the washing water is heated by the heater in the process, the operating rate of the motor is set so that the stirring force after detecting the set temperature is stronger than the stirring force until the temperature detecting means detects the set temperature. It is a washing machine designed to enhance.

この構成であれば、洗濯水が設定温度が低い状態では、攪拌力を弱めて、洗濯物の傷みを抑制すると共に、無駄な電力の消費を抑制する。設定温度を検知した後は、攪拌力を強めて洗浄効率を向上することができる。   With this configuration, in a state where the washing water has a low set temperature, the stirring force is weakened to prevent the laundry from being damaged and the wasteful power consumption from being suppressed. After detecting the set temperature, the stirring efficiency can be increased to improve the cleaning efficiency.

第2の発明は、洗濯水を溜める水槽と、前記水槽内に回転可能に配設された回転槽と、前記回転槽を駆動するモータと、前記水槽の下部に設けられた排水口と、前記水槽の下部に設けられた洗濯水加熱用のヒータと、前記水槽内の洗濯水温を検知する温度検知手段と、洗い、すすぎ、脱水の一連の洗濯動作を制御する制御手段と、を備え、洗濯工程で前記ヒータにより洗濯水の加熱を開始した後、所定の時間が経過するまでの攪拌力に比べて、所定の時間が経過した後の攪拌力が強まるように、前記モータの稼働率を高めるようにした洗濯機である。   According to a second aspect of the present invention, there is provided a water tank for storing washing water, a rotating tank rotatably disposed in the water tank, a motor for driving the rotating tank, a drain outlet provided at a lower portion of the water tank, Washing water heating heater provided at the lower part of the water tank, temperature detection means for detecting the temperature of the washing water in the water tank, and control means for controlling a series of washing, rinsing and dehydration washing operations, The operation rate of the motor is increased so that the stirring force after a predetermined time has elapsed compared to the stirring force until the predetermined time has elapsed after the heater starts heating the washing water in the process. This is a washing machine.

この構成であれば、洗濯水が設定温度が低い状態では、攪拌力を弱めて、洗濯物の傷みを抑制すると共に、無駄な電力の消費を抑制する。設定温度を検知した後は、攪拌力を強めて洗浄効率を向上することができる。   With this configuration, in a state where the washing water has a low set temperature, the stirring force is weakened to prevent the laundry from being damaged and the wasteful power consumption from being suppressed. After detecting the set temperature, the stirring efficiency can be increased to improve the cleaning efficiency.

第3の発明は、第1または第2の発明のヒータをONする洗い工程において、前記温度検知手段が所定の温度を検知する前後、または所定の時間が経過する前後で、前記モータの回転数を変える洗濯機である。   According to a third aspect of the present invention, in the washing step of turning on the heater of the first or second aspect, the rotational speed of the motor before and after the temperature detecting means detects a predetermined temperature or before and after a predetermined time elapses. It is a washing machine that changes.

以下、本発明の実施の形態に係る洗濯機について、図面を参照しながら説明する。なお、以下の実施の形態は、本発明を具体化した一例であって、本発明の技術的範囲を限定するものではない。   Hereinafter, a washing machine according to an embodiment of the present invention will be described with reference to the drawings. The following embodiments are examples embodying the present invention, and do not limit the technical scope of the present invention.

(実施の形態1)
以下、本発明の実施の形態1について、図面を参照しながら説明する。図1は、本発明の実施の形態1における洗濯機の概略構造を示す断面図である。図2は、本発明の実施の形態1における洗濯機のつけおき洗い工程の動作を示すタイムチャートである。
(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a cross-sectional view showing a schematic structure of a washing machine according to Embodiment 1 of the present invention. FIG. 2 is a time chart showing the operation of the washing-up process of the washing machine according to Embodiment 1 of the present invention.

筐体1内に有底円筒形に形成された水槽2が弾性的に支持されている。水槽2内に有底円筒形に形成された回転槽4が回転可能に配設されている。回転槽4の回転軸心10は、回転槽4の円筒形の中心線とほぼ一致しており、水槽2の円筒形の中心線ともほぼ一致している。   A water tank 2 formed in a bottomed cylindrical shape in the housing 1 is elastically supported. A rotating tank 4 formed in a bottomed cylindrical shape is disposed in the water tank 2 so as to be rotatable. The rotation axis 10 of the rotating tub 4 substantially coincides with the cylindrical center line of the rotating tub 4 and also substantially coincides with the cylindrical center line of the water tub 2.

水槽2および回転槽4は、前面側に各々、開口部5、6が設けられている。水槽2の開口部5側を筐体1の正面側にして、回転槽4の回転軸心10が水平方向から前上がりに傾斜(例えば、10〜20度)されて支持されている。回転軸心10が前上がりに傾斜することで、少量の水で深い貯水状態が得られ、節水性を向上することができる。しかし、節水性を考慮しなければ、回転軸心10は水平であってもよい。   The water tank 2 and the rotating tank 4 are each provided with openings 5 and 6 on the front side. With the opening 5 side of the water tank 2 being the front side of the housing 1, the rotation axis 10 of the rotating tank 4 is supported by being inclined upward (for example, 10 to 20 degrees) from the horizontal direction. When the rotation axis 10 is inclined upward, a deep water storage state can be obtained with a small amount of water, and water saving can be improved. However, the rotation axis 10 may be horizontal if water saving is not taken into consideration.

水槽2の開口部5および回転槽4の開口部6に対向して、筐体1の前面に開閉自在な扉体7が設けられている。使用者は、扉体7を開放することにより、回転槽4に対して洗濯物を出し入れすることができる。なお、水槽2の開口部5の周囲には、柔軟な、例えばラバー等の弾性体によって成形されたベローズ8が配設されている。扉体7を閉塞すると、扉体7の内面にベローズ8の一端が圧接し、開口部5と扉体7がシールされる。   Opposite to the opening 5 of the water tank 2 and the opening 6 of the rotating tank 4, a door body 7 that can be opened and closed is provided on the front surface of the housing 1. The user can put the laundry in and out of the rotating tub 4 by opening the door body 7. A flexible bellows 8 formed of an elastic body such as rubber is disposed around the opening 5 of the water tank 2. When the door body 7 is closed, one end of the bellows 8 is pressed against the inner surface of the door body 7, and the opening 5 and the door body 7 are sealed.

水槽2の開口部5に対して反対側の端面には、回転槽4を回転駆動するモータ9が取り付けられている。モータ9のロータは、回転槽4の回転軸心10で回転槽4と連結されており、モータ9の回転は、回転軸心10によって回転槽4に伝達される。回転槽4の周壁には、複数の突起体12が回転軸心10に向かって突出して設けられている。回転槽4が回転することにより、洗濯物が突起体12に引っ掛けられて上方に持ち上げられ、ある程度の高さから落下させるといった撹拌動作が行われる。   A motor 9 that rotationally drives the rotating tub 4 is attached to an end surface on the opposite side to the opening 5 of the water tub 2. The rotor of the motor 9 is connected to the rotating tub 4 by the rotating shaft center 10 of the rotating tub 4, and the rotation of the motor 9 is transmitted to the rotating tub 4 by the rotating shaft 10. A plurality of protrusions 12 are provided on the peripheral wall of the rotating tub 4 so as to protrude toward the rotation axis 10. As the rotating tub 4 rotates, the laundry is hooked on the protrusion 12 and lifted upward, and a stirring operation is performed in which the laundry is dropped from a certain height.

回転槽4の周壁には、小孔13が全周にわたって複数設けられており、水槽2内の洗浄水が所定の水位に溜まると、小孔13から回転槽4内に洗浄水が入るように構成されている。   A plurality of small holes 13 are provided in the peripheral wall of the rotating tank 4 over the entire circumference so that when the cleaning water in the water tank 2 accumulates at a predetermined water level, the cleaning water enters the rotating tank 4 from the small holes 13. It is configured.

水槽2の上方には、洗剤を収容する洗剤容器14が設けられている。洗剤容器14は、水道の蛇口と接続されている給水弁15に接続されており、給水弁15の開閉によって洗剤容器14への水道水の供給と停止が行われる。   Above the water tank 2, a detergent container 14 for storing detergent is provided. The detergent container 14 is connected to a water supply valve 15 connected to a water tap, and supply and stop of tap water to the detergent container 14 is performed by opening and closing the water supply valve 15.

水槽2の内底下部には、凹形状の排水溝3が設けられる。排水溝3の底部かつ水槽2の最下点近傍には、水槽2内の洗浄水を排出する排水口17が設けられ、また、排水口17から排出される洗浄水を筐体1の外へと導く排水経路18が設けられている。排水経路18の途中には、排水経路18を開閉する排水弁19が設けられている。また、排水溝3には、洗浄水を加熱する加熱手段としてヒータ3aを配設している。   A concave drainage groove 3 is provided at the bottom of the inner bottom of the water tank 2. A drain port 17 for discharging the cleaning water in the water tank 2 is provided at the bottom of the drain groove 3 and in the vicinity of the lowest point of the water tank 2, and the cleaning water discharged from the drain port 17 is discharged to the outside of the housing 1. Is provided. A drain valve 19 that opens and closes the drain path 18 is provided in the middle of the drain path 18. The drain groove 3 is provided with a heater 3a as a heating means for heating the cleaning water.

排水口17には、水槽2から排出された洗浄水が回転槽4を経て、再び水槽2内へ導かれる循環水路20が接続されている。循環水路20は、排水経路18と途中で分岐して設けられている。循環水路20の途中には、ポンプ21が設けられている。ポンプ21を駆動すると、水槽2内の洗浄水は、排水口17から循環水路20内に引き込まれる。循環水路20に流入した洗浄水は、ポンプ21により加圧されて回転槽4内へ送水される。このようにして、循環水路20を通して水槽2へ循環させることができる。   Connected to the drain port 17 is a circulating water channel 20 through which the washing water discharged from the water tank 2 is led again into the water tank 2 through the rotating tank 4. The circulation water channel 20 is branched from the drainage channel 18 and provided in the middle. A pump 21 is provided in the middle of the circulation water channel 20. When the pump 21 is driven, the wash water in the water tank 2 is drawn into the circulation water channel 20 from the drain port 17. The wash water that has flowed into the circulation water channel 20 is pressurized by the pump 21 and is fed into the rotary tank 4. In this manner, the water can be circulated to the water tank 2 through the circulation water channel 20.

水槽2の前部内側には、回転槽4の開口部6側から見て、水槽2に設けた円形の開口部5の外周側にノズル水路22が設けられている。ポンプ21により送水される水槽2内の洗浄水は、循環水路20を通ってノズル水路22から回転槽4の回転軸心10側に向けて図1に示す矢印aの通りに洗浄水を噴出する。   Inside the front part of the water tank 2, a nozzle water channel 22 is provided on the outer peripheral side of the circular opening part 5 provided in the water tank 2 when viewed from the opening part 6 side of the rotating tank 4. The wash water in the water tank 2 fed by the pump 21 ejects the wash water through the circulation water path 20 from the nozzle water path 22 toward the rotation axis 10 of the rotary tank 4 as shown by the arrow a in FIG. .

筐体1内の前方上部には、モータ9、給水弁15、排水弁19、ポンプ21等を制御し、洗い、すすぎ、脱水の各工程の動作を設定されたプログラムに基づいて制御する制御手段32が設けられている。   Control means for controlling the motor 9, the water supply valve 15, the drain valve 19, the pump 21, and the like on the front upper part in the housing 1, and controlling the operation of each step of washing, rinsing and dehydration based on a set program. 32 is provided.

制御手段32は、各種洗濯コースを実行可能であり、一つのコースとして、つけおき洗
いコースを行う。つけおき洗いコースのつけおき洗い工程は、給水工程、洗濯水の温度を上昇させる昇温工程と、温度を略一定に保つ保温工程を有している。
The control means 32 can execute various washing courses, and performs a rest washing course as one course. The soaking washing process of the soaking washing course has a water supply process, a temperature raising process for raising the temperature of the washing water, and a heat retaining process for keeping the temperature substantially constant.

以上のように構成されたドラム式洗濯機のつけおき洗い工程について、以下、その動作、作用を説明する。   The operation and action of the drum washing machine configured as described above will be described below.

使用者が、扉体7を開いて回転槽4内に洗濯物を投入し、運転を開始すると、制御手段32は、投入された洗濯物の量を検知する。その後、給水工程を実行し、給水弁15を開き、洗浄水が洗剤容器14内に貯蔵された洗濯洗剤を溶かして、洗浄水が水槽2内に給水される。   When the user opens the door body 7 and puts the laundry into the rotating tub 4 and starts operation, the control means 32 detects the amount of the loaded laundry. Then, a water supply process is performed, the water supply valve 15 is opened, the washing water dissolves the laundry detergent stored in the detergent container 14, and the washing water is supplied into the water tank 2.

洗浄水は、ヒータ3aにより加熱されており、ヒータ3aにより加熱する洗浄水の温度は、約20℃から約60℃の範囲が好ましい。洗浄水の温度を約20℃より低く設定すると、洗浄能力が低下し、洗浄水の温度を約60℃より高く設定すると、洗濯物の繊維自体が熱によって傷むためである。なお、本実施の形態では、ヒータ3aにより、洗浄水を約40℃に加熱するように設定している。   The washing water is heated by the heater 3a, and the temperature of the washing water heated by the heater 3a is preferably in the range of about 20 ° C to about 60 ° C. This is because if the temperature of the washing water is set lower than about 20 ° C., the washing ability is lowered, and if the temperature of the washing water is set higher than about 60 ° C., the laundry fibers themselves are damaged by heat. In the present embodiment, the cleaning water is set to be heated to about 40 ° C. by the heater 3a.

なお、つけおき洗いコースを行なう際には、洗濯洗剤は、通常の洗濯コースを行なう際の約2倍の量を投入する。約2倍の量の洗濯洗剤を用いることにより、洗濯物の臭いの元となる汚れや細菌類を取る効果を向上させることが可能となる。さらに、洗浄水は、ヒータ3aにより約40℃に加熱しているので、洗浄水に溶けた洗濯洗剤に含まれる酵素の効能を最大限に発揮して効果的な洗浄力を得ることができ、洗浄効果が向上し、洗濯物の臭いの元となる汚れや細菌類を取る効果を一層向上させることが可能となる。   In addition, when performing a soaking washing course, the amount of laundry detergent is about twice as much as when performing a normal washing course. By using about twice the amount of laundry detergent, it is possible to improve the effect of removing dirt and bacteria that cause the odor of laundry. Furthermore, since the washing water is heated to about 40 ° C. by the heater 3a, the effectiveness of the enzyme contained in the laundry detergent dissolved in the washing water can be maximized to obtain an effective detergency. The cleaning effect is improved, and it is possible to further improve the effect of removing dirt and bacteria that cause the odor of laundry.

つけおき洗いコースにおける給水工程のポンプ21の駆動は、他の工程よりも低い回転速度で駆動し、水槽2と回転槽4との間に洗浄水を供給するようにしている。つけおき洗い工程は、通常の洗濯コースの約2倍の量の洗濯洗剤を使用し、さらに、洗浄水を約40℃に加熱しているため、泡立ち易くなっており、ポンプ21を低速で駆動し、供給する洗浄水の勢いを弱めて水槽2と回転槽4との間に洗浄水を供給することにより、洗浄水の発泡を抑制することができる。   The drive of the pump 21 in the water supply process in the soaking course is driven at a lower rotational speed than in the other processes so that cleaning water is supplied between the water tank 2 and the rotary tank 4. The soaking washing process uses approximately twice as much laundry detergent as the normal washing course, and the washing water is heated to about 40 ° C, making it easy to foam and driving the pump 21 at low speed. Then, by weakening the momentum of the supplied cleaning water and supplying the cleaning water between the water tank 2 and the rotating tank 4, foaming of the cleaning water can be suppressed.

水槽2内に溜められる洗浄水は、水槽2の下部と連通した水位検知手段16によって検知される。洗濯物の量に応じて設定された水量が溜められると、制御手段32は、給水を停止して洗濯を開始する。回転槽4は、モータ9によって正逆回転駆動され、回転槽4内に収容された洗濯物は、突起体12により回転方向に持ち上げられた後、落下し、洗濯物は、叩き洗いの作用によって洗浄される。   Wash water stored in the water tank 2 is detected by a water level detection means 16 communicating with the lower part of the water tank 2. When the amount of water set according to the amount of laundry is stored, the control means 32 stops water supply and starts washing. The rotating tub 4 is driven to rotate in the forward and reverse directions by the motor 9, and the laundry stored in the rotating tub 4 is lifted by the protrusion 12 in the rotational direction and then dropped. Washed.

本実施の形態では、洗濯物の量に応じて設定された水量が溜められると、制御手段32は、回転槽4を回転させる。回転槽4を回転させることにより、回転槽4内の水位が低い場合でも、溜まった洗濯水に洗濯物全体を浸漬させることができ、さらに、洗濯物をたたき洗いし、洗浄効率を向上させることができる。   In the present embodiment, when the amount of water set according to the amount of laundry is stored, the control means 32 rotates the rotating tub 4. By rotating the rotating tub 4, even when the water level in the rotating tub 4 is low, the entire laundry can be immersed in the accumulated washing water, and the laundry is tapped to improve the cleaning efficiency. Can do.

図2は、本発明の実施の形態1における洗濯機のつけおき洗い工程の動作を示すタイムチャートであり、上段に洗濯水の水温変化を示し、下段にヒータ3aの駆動状態とモータ9の駆動状態を示している。   FIG. 2 is a time chart showing the operation of the washing-up process of the washing machine according to the first embodiment of the present invention, in which the water temperature change in the washing water is shown in the upper row, the driving state of the heater 3a and the driving of the motor 9 are shown in the lower row. Indicates the state.

洗濯を開始した当初は、洗浄水は、設定温度である約40℃にまで達していない。洗浄水の温度が設定温度より低い昇温工程では、図2に示すように、モータ9を短時間駆動させてモータ9の駆動率を低くし、回転槽4を低速回転させる。   At the beginning of washing, the washing water does not reach the preset temperature of about 40 ° C. In the temperature raising process in which the temperature of the washing water is lower than the set temperature, as shown in FIG. 2, the motor 9 is driven for a short time to lower the driving rate of the motor 9, and the rotating tub 4 is rotated at a low speed.

人体由来の皮脂は、一般的に37℃程度で溶け出すので、皮脂が溶け出す温度に上がるまでは、攪拌力を弱めて、洗濯物の傷みを抑制する。特に、冬場においては、水温は、5℃程度まで低下しているので、攪拌力を弱めて、洗濯物の傷みを抑制することが好ましい。   Since the sebum derived from the human body generally melts at about 37 ° C., the stirring force is weakened until the temperature at which the sebum melts is increased, thereby suppressing damage to the laundry. In particular, in winter, the water temperature is lowered to about 5 ° C., so it is preferable to weaken the stirring force to prevent the laundry from being damaged.

また、皮脂が溶け出す前に攪拌力を高めた場合、回転槽4内に泡が過剰に発泡する。泡が過剰に発泡すると、すすぎ性能が低下するだけでなく、発生した泡を消すために不必要に水を使用するなど無駄が多いという問題があり、洗浄には適正な泡立ちが望ましい。   In addition, when the stirring force is increased before the sebum dissolves, bubbles are excessively foamed in the rotary tank 4. When the foam is excessively foamed, not only the rinsing performance is deteriorated, but also there is a problem that water is unnecessarily used to erase the generated foam, and it is desirable that proper foaming is used for cleaning.

皮脂などの汚れ成分が洗濯水に溶け出すと、洗剤は汚れに対して作用するため、過剰な発泡を生じず、適正な泡の量となる。   When a soil component such as sebum dissolves in the washing water, the detergent acts on the soil, so that excessive foaming does not occur and an appropriate amount of foam is obtained.

洗濯水の温度が設定温度である約40℃に達すると、保温工程を行う。保温工程では、洗濯水の温度が設定温度に維持されるようヒータ3aをON/OFF制御する。   When the temperature of the washing water reaches about 40 ° C. which is a set temperature, a heat retaining process is performed. In the heat retaining step, the heater 3a is ON / OFF controlled so that the temperature of the washing water is maintained at the set temperature.

また、保温工程では、モータ9への通電時間を昇温工程での通電時間より長くして、回転槽4の回転速度を増大させる。保温工程では、洗濯水が皮脂などの汚れ成分が洗濯水に溶け出す温度になっているので、回転槽4の攪拌力を強めても、異常発泡を発生しない。   In the heat retaining step, the energization time for the motor 9 is made longer than the energization time in the temperature raising step to increase the rotation speed of the rotating tub 4. In the heat retaining step, since the washing water is at a temperature at which dirt components such as sebum dissolve into the washing water, abnormal foaming does not occur even if the stirring force of the rotating tub 4 is increased.

本実施の形態では、人体由来の皮脂等が洗濯水に溶け出す約40℃に達すると、回転槽4の回転を強めているので、洗剤酵素の活性を有効利用して、洗濯物の洗浄効率を向上することができる。   In this embodiment, when the sebum derived from the human body dissolves in the washing water and reaches about 40 ° C., the rotation of the rotating tub 4 is strengthened. Can be improved.

本実施の形態では、昇温工程におけるモータ9の稼働率を、10秒ON、13秒OFFとし、保温工程におけるモータ9の稼働率を、12秒ON、1秒OFFに設定している。   In the present embodiment, the operation rate of the motor 9 in the temperature raising process is set to 10 seconds ON and 13 seconds OFF, and the operation rate of the motor 9 in the heat retention process is set to 12 seconds ON and 1 second OFF.

昇温工程から保温工程への移行は、水槽2内の洗浄水の温度を検出する温度検知手段の出力に基づいて行われる。また、昇温工程開始から洗濯水の温度が設定温度である約40℃に達するまでの所定の時間経過後に、保温工程に移行するよう構成してもよい。前記所定の時間は、実験の結果定めて設定することができる。   The transition from the temperature raising step to the heat retaining step is performed based on the output of the temperature detecting means for detecting the temperature of the washing water in the water tank 2. Moreover, you may comprise so that it may transfer to a heat retention process after predetermined time progress until the temperature of washing water reaches about 40 degreeC which is preset temperature from the temperature rising process start. The predetermined time can be determined and set as a result of an experiment.

また、回転槽4の洗濯物に対する攪拌力は、モータ9の回転数を変更する構成としてもよい。例えば、昇温工程におけるモータ9の回転数を、洗濯物が突起体12により持ち上げられない程度の35rpmに、保温工程におけるモータ9の回転数を、洗濯物が突起体12により持ち上げられる程度の45rpmに設定する。この構成により、昇温工程では、洗濯物に対して弱い攪拌力とし、保温工程では、洗濯物に対する攪拌力を大きくすることができ、同様の作用効果を得ることができる。   Moreover, the stirring force with respect to the laundry of the rotating tub 4 is good also as a structure which changes the rotation speed of the motor 9. FIG. For example, the number of rotations of the motor 9 in the temperature raising step is set to 35 rpm so that the laundry is not lifted by the protrusions 12. Set to. With this configuration, it is possible to obtain a weak stirring force for the laundry in the temperature raising step, and to increase the stirring force for the laundry in the heat retaining step, and the same effects can be obtained.

つけおき洗い工程において、ポンプ21を駆動する。洗浄水の水位が低い場合、回転槽4を回転させても洗濯物全体に洗濯水が行き渡りにくい場合が想定される。このため、回転槽4内の洗濯物に洗浄水を降りかけるべく、ポンプ21を動作させる。ポンプ21が動作すると、水槽2内の洗浄水は、水槽2の底部に設けた排水口17から循環水路20内に引き込まれ、ノズル水路22を経て回転槽4内の洗濯物に向けて噴出され、回転槽4内の洗濯物に供給し、洗濯物に浸漬される。   In the soaking process, the pump 21 is driven. When the water level of the washing water is low, it is assumed that the washing water is difficult to reach the entire laundry even if the rotating tub 4 is rotated. For this reason, the pump 21 is operated so that the washing water falls on the laundry in the rotating tub 4. When the pump 21 is operated, the washing water in the water tank 2 is drawn into the circulation water channel 20 from the drain port 17 provided at the bottom of the water tank 2, and is jetted toward the laundry in the rotating tank 4 through the nozzle water channel 22. , Supplied to the laundry in the rotating tub 4 and immersed in the laundry.

つけおき洗い工程では、ポンプ21は間欠的に駆動する。ポンプ21から供給される洗浄水の一部は、回転槽4内に供給され、回転槽4の開口部6近傍の洗濯物に供給されて、洗濯物が含水する。これにより、回転槽4内の洗濯物全体に、満遍なく洗浄水が供給される。ポンプ21が駆動すると、回転槽4の開口部6近傍の洗濯物に十分に洗浄水が供給され、洗濯物が含水する。一方で、回転槽4内の水位が下がり、回転槽4の底部11近傍の
洗濯物は濡れにくくなる。逆に、ポンプ21が停止すると、回転槽4の開口部6近傍の洗濯物は濡れにくくなり、含水率が低下する。一方で、回転槽4内の水位がポンプ21を駆動した時よりも上がるために、回転槽4の底部11近傍の洗濯物が十分に濡れる。これらの作用により、ポンプ21を間欠的に駆動させることにより、含水と含水率の低下が交互なされる。即ち、ポンプ21を間欠駆動させることで、洗濯物が回転槽4内部に充填して投入されていても、回転槽4の開口部6および底部11いずれに位置する洗濯物も交互に十分に濡らすことができる。
In the soaking process, the pump 21 is driven intermittently. A part of the washing water supplied from the pump 21 is supplied into the rotating tub 4 and supplied to the laundry in the vicinity of the opening 6 of the rotating tub 4 so that the laundry contains water. Thereby, the washing water is uniformly supplied to the entire laundry in the rotating tub 4. When the pump 21 is driven, the washing water is sufficiently supplied to the laundry in the vicinity of the opening 6 of the rotary tub 4, and the laundry contains water. On the other hand, the water level in the rotating tub 4 is lowered, and the laundry near the bottom 11 of the rotating tub 4 becomes difficult to get wet. Conversely, when the pump 21 is stopped, the laundry near the opening 6 of the rotating tub 4 becomes difficult to get wet, and the moisture content is reduced. On the other hand, since the water level in the rotating tub 4 is higher than when the pump 21 is driven, the laundry near the bottom 11 of the rotating tub 4 is sufficiently wetted. By these actions, the pump 21 is driven intermittently, so that the water content and the water content decrease are alternated. That is, by intermittently driving the pump 21, even if the laundry is filled and put into the rotating tub 4, the laundry located in any of the opening 6 and the bottom 11 of the rotating tub 4 is also sufficiently wetted alternately. be able to.

つけおき洗い工程が終了すると、すすぎ工程を実行する。   When the soaking process is completed, a rinsing process is performed.

つけおき洗い工程が終了すると、排水弁19が開かれ、水槽2内の洗浄水は、排水経路18を通して排水される。排水完了後、新たにすすぎ用の洗浄水が給水されてすすぎ工程が実行される。すすぎ工程における回転槽4の動作は、洗い工程と同様である。すすぎ工程でもポンプ21が駆動し、すすぎ用の洗浄水が吐出される。すすぎ用の洗浄水が回転槽4内の洗濯物全体に満遍なく供給されることにより、効果的にすすぎが行われる。   When the soaking washing process is completed, the drain valve 19 is opened, and the wash water in the water tank 2 is drained through the drain path 18. After the drainage is completed, rinse water for rinsing is newly supplied, and the rinsing process is executed. The operation of the rotating tank 4 in the rinsing process is the same as that in the washing process. Even in the rinsing process, the pump 21 is driven and the rinse water for rinsing is discharged. Rinsing is effectively performed by supplying the washing water for rinsing evenly to the entire laundry in the rotary tub 4.

所定回数のすすぎ工程が終了すると、排水弁19を開放して水槽2内のすすぎ用の洗浄水が排水される。回転槽4が高速で回転して、洗濯物に含まれているすすぎ用の洗浄水が脱水される。脱水工程を所定時間実行して運転を終了する。なお、乾燥装置を設け、脱水工程に続いて乾燥工程を実行するようにしてもよい。   When the predetermined number of rinsing steps are completed, the drain valve 19 is opened and the rinse water for rinsing in the water tank 2 is drained. The rotating tub 4 rotates at high speed, and the rinsing water contained in the laundry is dehydrated. The dehydration step is executed for a predetermined time and the operation is terminated. In addition, a drying apparatus may be provided and a drying process may be performed following a dehydration process.

以上のように、本発明にかかる洗濯機は、洗濯物の傷みを抑制し、無駄な消費電力を抑えつつ、高い洗浄力を得ることができ、大変有用である。   As described above, the washing machine according to the present invention is very useful because it can suppress the damage to the laundry and can obtain high cleaning power while suppressing wasteful power consumption.

1 筐体
2 水槽
3 排水溝
4 回転槽
5、6 開口部
7 扉体
8 ベローズ
9 モータ
10 回転軸心
11 底部
12 突起体
13 小孔
14 洗剤容器
15 給水弁
16 水位検知手段
17 排水口
18 排水経路
19 排水弁
20 循環水路
21 ポンプ
22 ノズル水路
32 制御手段
DESCRIPTION OF SYMBOLS 1 Case 2 Water tank 3 Drainage groove 4 Rotating tank 5, 6 Opening part 7 Door body 8 Bellows 9 Motor 10 Rotating shaft center 11 Bottom part 12 Projection body 13 Small hole 14 Detergent container 15 Water supply valve 16 Water level detection means 17 Drain outlet 18 Drainage Route 19 Drain valve 20 Circulating water channel 21 Pump 22 Nozzle water channel 32 Control means

Claims (3)

洗濯水を溜める水槽と、
前記水槽内に回転可能に配設された回転槽と、
前記回転槽を駆動するモータと、
前記水槽の下部に設けられた排水口と、
前記水槽の下部に設けられた洗濯水加熱用のヒータと、
前記水槽内の洗濯水温を検知する温度検知手段と、
洗い、すすぎ、脱水の一連の洗濯動作を制御する制御手段と、を備え、
洗濯工程で前記ヒータにより洗濯水の加熱を開始した後、前記温度検知手段が設定温度を検知するまでの攪拌力に比べて、設定温度を検知した後の攪拌力が強まるように、前記モータの稼働率を高めること、
を特徴とする洗濯機。
A water tank for storing washing water;
A rotating tank rotatably disposed in the water tank;
A motor for driving the rotating tank;
A drain outlet provided in the lower part of the water tank;
A heater for washing water heating provided in a lower portion of the water tank;
Temperature detecting means for detecting the temperature of the washing water in the water tank;
Control means for controlling a series of washing operations of washing, rinsing and dehydration,
After starting the heating of the washing water by the heater in the washing process, the stirring force after detecting the set temperature is stronger than the stirring force until the temperature detecting means detects the set temperature. Increase occupancy,
A washing machine featuring.
洗濯水を溜める水槽と、
前記水槽内に回転可能に配設された回転槽と、
前記回転槽を駆動するモータと、
前記水槽の下部に設けられた排水口と、
前記水槽の下部に設けられた洗濯水加熱用のヒータと、
前記水槽内の洗濯水温を検知する温度検知手段と、
洗い、すすぎ、脱水の一連の洗濯動作を制御する制御手段と、を備え、
洗濯工程で前記ヒータにより洗濯水の加熱を開始した後、所定の時間が経過するまでの攪拌力に比べて、所定の時間が経過した後の攪拌力が強まるように、前記モータの稼働率を高めること、
を特徴とする洗濯機。
A water tank for storing washing water;
A rotating tank rotatably disposed in the water tank;
A motor for driving the rotating tank;
A drain outlet provided in the lower part of the water tank;
A heater for washing water heating provided in a lower portion of the water tank;
Temperature detecting means for detecting the temperature of the washing water in the water tank;
Control means for controlling a series of washing operations of washing, rinsing and dehydration,
The operation rate of the motor is set so that the stirring force after a predetermined time has passed is stronger than the stirring force until the predetermined time has passed after the heater starts heating the washing water in the washing process. Enhancing,
A washing machine featuring.
制御手段は、前記ヒータをONする洗い工程において、前記温度検知手段が設定温度を検知する前後、または所定の時間が経過する前後で、前記モータの回転数を変えること、
を特徴とする請求項1または2に記載の洗濯機。
The control means changes the rotation speed of the motor before and after the temperature detection means detects a set temperature or before and after a predetermined time elapses in the washing step of turning on the heater.
The washing machine according to claim 1 or 2.
JP2016176090A 2016-09-09 2016-09-09 Washing machine Pending JP2018038699A (en)

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US20070289607A1 (en) * 2006-06-19 2007-12-20 Samsung Electronics Co., Ltd. Washing machine and washing control method of the same
JP2016055001A (en) * 2014-09-11 2016-04-21 パナソニックIpマネジメント株式会社 Drum-type washing machine

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JP2020054688A (en) * 2018-10-03 2020-04-09 東芝ライフスタイル株式会社 Washing machine
JP7244246B2 (en) 2018-10-03 2023-03-22 東芝ライフスタイル株式会社 washing machine
JP2022034157A (en) * 2020-08-18 2022-03-03 日立グローバルライフソリューションズ株式会社 washing machine
JP7317771B2 (en) 2020-08-18 2023-07-31 日立グローバルライフソリューションズ株式会社 washing machine
CN114481535A (en) * 2020-11-13 2022-05-13 无锡小天鹅电器有限公司 Washing control method and device, clothes treatment equipment and storage medium
CN114481535B (en) * 2020-11-13 2023-12-05 无锡小天鹅电器有限公司 Washing control method and device, clothes treatment equipment and storage medium

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